WO2009149724A1 - Integrierte luftklappe - Google Patents
Integrierte luftklappe Download PDFInfo
- Publication number
- WO2009149724A1 WO2009149724A1 PCT/EP2008/004662 EP2008004662W WO2009149724A1 WO 2009149724 A1 WO2009149724 A1 WO 2009149724A1 EP 2008004662 W EP2008004662 W EP 2008004662W WO 2009149724 A1 WO2009149724 A1 WO 2009149724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- flap
- intake system
- air intake
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
- F02B31/085—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets having two inlet valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10078—Connections of intake systems to the engine
- F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10255—Arrangements of valves; Multi-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/108—Intake manifolds with primary and secondary intake passages
- F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to an air intake system for an internal combustion engine with a controllable air damper.
- tumble flaps are Controllable flaps in air intake systems, which can cause currents of this kind in operative position, which are called tumble flaps.
- Swirl flow refers to flows whose axis essentially corresponds to the combustion chamber axis.
- Controllable flaps in air intake systems, which in the active position cause flows of this type in the combustion chamber, are called swirl flaps.
- louvers must be controllable, as they also have a throttling effect and are therefore to turn at full load of the engine in a neutral position in which their effect should be minimized, while their effect at partial load of the engine in an operative position should come to full advantage.
- an intake duct system for internal combustion engines is known in which pivotable tumble flaps are arranged in a screw-on to the cylinder head channel element. They are thus at a significant distance from the gas inlet valves. Its pivot axis corresponds to the direction of Tumbleklappenverlaufes transversely in the inlet channel in the operative position.
- an air intake system for an internal combustion engine in which a partition wall is arranged in each inlet channel of the cylinder head, which divides the inlet channel transversely into a curvature outside and a curvature inside, wherein a switchable tumble flap the entrance to the channel half on the curvature inside can lock.
- the axis of rotation of the tumble flap is in this case arranged in an attached to the cylinder head air intake pipe. This is due to a long distance to the opening into the associated cylinder inlet port of the intake port.
- an air intake system in which the air inlet ducts are divided by a flow divider in the cylinder head transversely into two sub-channels, of which an overhead sub-channel on the outside of the curvature of the inlet channel and a lower sub-channel on the curvature inside of the inlet channel.
- a controlled opening and closing of the sub-channels is effected by various elements such as roller valves or individual flaps, which are arranged in a screwed-on to the cylinder head actuator.
- the present invention has for its object to provide an air intake system for internal combustion engines with two gas inlet valves per cylinder, which has simple design, but effective means for influencing the flow of air into the combustion chamber.
- the solution to this consists in an air intake system for an internal combustion engine with a cylinder head, each having an undivided inlet channel inlet for two gas inlet channels with two gas inlet valves of a cylinder, wherein a partition between the two gas inlet channels downstream from the inlet duct entrance, with an air damper, which lies in the cross-section of an air supply duct and an axis of rotation lying substantially in a cross-sectional plane of the air supply duct and is arranged substantially symmetrical to the longitudinal axes of the gas inlet valves, the damper between a neutral position in which they is aligned in the longitudinal direction of the air supply channel, and an operative position in which it is located transversely in the air supply channel and the channel cross-section partially or completely blocks, is adjustable.
- the axis of rotation of the air flap in the flow direction in front of the intermediate wall is arranged in alignment with the intermediate wall.
- the hereby shown system thus sets the air flap in the neutral position in the flow direction centrally on the inlet channel inlet, wherein the contour of the air flap lies within the contour of the intermediate wall between the two inlet channels.
- the air damper can be turned to neutral position where it produces virtually no additional air resistance.
- the air damper In the flow direction in front of the air damper may be a flow divider, which obscures the air damper in its neutral position, so that there is an improved flow.
- the air damper is preferably mounted on a unilaterally protruding from the corresponding housing pivot and adjustable by means of a corresponding pivot lever.
- the air cap is arranged in an intermediate flange housing which can be inserted between an air manifold and distributor tube and the cylinder head.
- the air damper can be set so close to the cylinder head that it extends in its neutral position into the undivided inlet duct inlet in the cylinder head, for example with more than 25% of its length.
- the intermediate wall between the two gas inlet channels of a cylinder is in this case correspondingly set back relative to a Anflansch simulation the cylinder head for the insectsschgephase.
- the air damper is arranged in an attachment piece, which is integrally molded with the cylinder head.
- the overall geometry should be essentially the same as before. It is necessary only with a reduced number of parts, the immediate assembly of the air damper in said attachment piece on the cylinder head.
- a third embodiment consists in that the air flap is arranged in a connection piece, which is integrally formed on a Vietnamesesammei- and manifold.
- a unitary or multi-part plastic housing for the Lucassammei- and manifold tube cylinder side can be designed so that the air damper is received in this housing. Also hereby a reduced number of parts is connected.
- the air damper protrudes in the neutral position in each case in the undivided inlet channel cross-section with a portion of its length.
- an air damper assembly is defined which is relatively insensitive to the position end positions of the damper (operative position / neutral position).
- the arrangement can be roughly tolerated and thus designed cost.
- the basic structure of the system provides the ability to vary the valve shape and size and thus the influence on the intake air flow by simply replacing the air damper, without that in the air intake system, that is, in particular in the amflanschgephinuse, any changes must be made. At the same time while the entire adjustment can be maintained unchanged.
- louvers all cylinders of a cylinder head can be adjusted together.
- the air flap is designed as a tumble flap, which covers in its operative position a part of the channel cross-section of the air supply channel, in particular lying on the inside of the curvature, by a symmetrical to the axis of rotation X extending part of the channel walls and by a substantially is limited transverse to the axis of rotation X extending line.
- the Tumbleklappe only a part of the height of the inlet channel entrance.
- the tumble flap In the active position, the tumble flap is transverse to the uniform inlet channel inlet, wherein it is in its contour of a wall, namely the curvature inside of the inlet channels corresponding wall and thereby covers a part of the channel cross-section.
- the tumble flap In this operative position, the tumble flap has the function of a flow weir through which the flow is displaced unilaterally, ie the flow velocity is substantially higher on one side of the inlet channels, in particular on the outside of the curve, than on the other side. If this unilateral flow flows through the open intake valves, a roll flow is generated (Aumble), whereby the roll axis is defined as being transverse to the cylinder axis.
- the roller disintegrates and generates a favorable or required for the mixture formation in the combustion chamber turbulence.
- the louver is designed as a swirl flap, which covers a part of the channel cross-section of the air supply duct, in particular at least one of the two mutually symmetrical cross-sectional halves, which extends through a region of the duct walls and through a substantially parallel to the axis of rotation X line near the Front edge of the intermediate wall is limited.
- a lateral displacement takes place within the full channel height, which leads to a preferred outflow of one of the two gas inlet valves, which can result in close proximity to the front edge of the partition to completely block one of the gas inlet valves.
- a clearly pronounced twist forms, which favors mixture formation in the combustion chamber.
- the air damper is designed as a throttle flap, in which the active position represents the closed position by the throttle valve covers the channel cross section substantially completely.
- the throttle valve can occupy substantially all intermediate positions between the neutral position and the closed position, wherein it affects the flow to both gas inlet valves largely uniform, optionally with slight swirling.
- FIG. 1 shows an air intake system according to the invention in a longitudinal section through the air intake ducts transversely to the axis of rotation of an air flap designed as a tumble flap with the tumble flap open (neutral position).
- FIG. 2 shows the air intake system according to FIG. 1 in a cross section through the air intake ducts through the axis of rotation of the tumble flap with the tumble flap open.
- FIG. 3 shows the air intake system according to FIGS. 1 and 2 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve with the tumble flap open.
- FIG. 4a shows the air intake system according to FIGS. 1, 2 and 3 in a longitudinal section through one of the air intake ducts transversely to the axis of rotation of the tumble flap in the case of a transverse tumble flap (active position).
- Figure 4b shows an air intake system similar to Figure 4a with integrated into the cylinder head neck.
- FIG. 5 shows the air intake system according to FIGS. 1, 2, 3 and 4a in a cross section through the air intake passages through the axis of rotation of the tumble flap in the case of a transverse tumble flap.
- FIG. 6a shows the air intake system according to FIGS. 1, 2, 3, 4a and 5 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve with the tumble flap positioned transversely.
- FIG. 6b shows a pleasure aspiration system similar to FIG. 6a with an intake nozzle integrated into an air collection and distribution pipe.
- FIG. 7 shows an inventive air intake system in a longitudinal section through the air intake ducts transversely to the axis of rotation of an air damper designed as a swirl flap with the swirl flap open.
- FIG. 8 shows the air intake system according to FIG. 7 in a cross section through the air intake passages through the axis of rotation of the swirl flap when the swirl flap is open.
- FIG. 9 shows the air intake system according to FIGS. 7 and 8 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve with the swirl flap open.
- FIG. 10a shows the air intake system according to FIGS. 7, 8 and 9 in a longitudinal section through one of the air intake ducts transversely to the axis of rotation of the swirl flap in the case of a transverse swirl flap (operative position).
- FIG. 10b shows an air intake system similar to that in FIG. 10a with an attachment neck integrated in the cylinder head.
- FIG. 11 shows the air intake system according to FIGS. 7, 8, 9 and 10a in a cross section through the air intake passages through the axis of rotation of the swirl flap with the swirl flap at a transverse position.
- FIG. 12 shows the air intake system according to FIGS. 7, 8, 9, 10a and 11 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve in the case of a transverse swirl flap.
- FIG. 13 shows an air intake system according to the invention in a longitudinal section through the air intake ducts transversely to the axis of rotation of a throttle valve designed as a throttle valve when the throttle valve is open.
- FIG. 14 shows the air intake system according to FIG. 13 in a cross-section through the air intake passages through the axis of rotation of the throttle valve when the throttle valve is open.
- FIG. 15 shows the air intake system according to FIGS. 13 and 14 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve when the throttle valve is open.
- FIG. 16 shows the air intake system according to FIGS. 13, 14 and 15 in a longitudinal section through one of the air intake ducts transversely to the axis of rotation of the throttle valve in the case of a transverse throttle valve (operative position / closed position).
- FIG. 17 shows the air intake system according to FIGS. 13, 14, 15 and 16 in a cross-section through the air intake passages through the axis of rotation of the throttle flap with the throttle valve in the transverse position.
- FIG. 18 shows the air intake system according to FIGS. 13, 14, 15, 16 and 17 in a longitudinal section through one of the air intake passages through the axis of the gas exchange valve in the case of a transverse throttle valve.
- FIG. 1 shows parts of a cylinder head 11 in the region of two gas inlet valves 12, 13 of a cylinder and an intermediate flange housing 14 flanged thereto with a tumble flap 15 according to the invention in a section along the section line EE according to FIG.
- the valve stems 16, 17 and the valve plates 18, 19 can be seen.
- the cylinder head 11 forms a uniform undivided inlet channel inlet 21 at a flange plane 20. At a distance from the flange plane 20, the inlet channel inlet 21 is replaced by an intermediate plane 20. wall 22 in two gas inlet channels 24, 25 divided to the two gas inlet valves 12, 13.
- Flow divider 27 and tumble flap 15 are shown in plan view, which is clear that they occupy only a portion of the height of the inlet channel entrance 21.
- the air supply 23 in the intermediate flange housing 14 has the same cross section as the inlet channel inlet 21 in the cylinder head 11.
- the intermediate flange housing can also form a plurality of identical flow channels for a plurality of adjacent cylinders of the cylinder head 11.
- the intermediate flange housing 14 forms a first flange surface 26 toward the cylinder head and a second flange surface 36 toward an air manifold.
- the cylinder head integrally formed here as insectsschgephinuse components.
- the realized in the intermediate flange housing components can also merge integrally into an air manifold (intake manifold).
- the tumble flap 15 is pivotable about its axis of rotation X perpendicular to the image plane.
- a pivot lever 28 is disposed below the insects 12, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the neutral position of the Tumbleklappe, which is aligned in the flow direction, with flow divider 27 and Tumbleklappe 15 improve the flow to the intermediate wall 22.
- FIG. 2 shows a cross section through the intermediate flange 14 according to the section line AA from FIG. 1 through the axis of rotation X of the tumble flap 15.
- the cylinder head 11 is visible in view.
- the Tumbleklappe 15 is connected to a pivot 31 which protrudes downwardly from the Eisenflanschgeophuse 14 and sealed with a gasket 32, for example made of Teflon gas-tight.
- Tumbleklappe 15 and pivot 31 are pressed together, but can also be integrally formed.
- On the pivot 31, in particular form-fitting the pivot lever 28 is placed, which is secured with a nut 33.
- a ball head 34 of the ball joint 29 is integrally arranged on which a ball socket 35 of the ball joint is placed, which is connected to the adjusting rod 30.
- the uniform undivided air supply channel 23 in the area of the intermediate flange housing has an oval cross section. Only in the region of the cylinder head 11, this cross section is divided by the intermediate wall 22 in two gas inlet channels 24, 25, which have substantially circular cross-section substantially. In the gas inlet channels 24, 25, the valve stems 16, 17 can be seen.
- the cross section of the Tumbleklappe 15 is substantially adapted to the wall cross section of the intermediate wall 22.
- the height of the tumble flap is about 40% of the channel height of the air supply channel 23. In the neutral position shown here, the tumble flap affects the air intake flow only minimally. The influences are further reduced by the aforementioned flow divider 27.
- FIG. 3 shows a longitudinal section through the gas exchange valve 13 according to the section line D-D from FIG.
- the Tumbleklappe 15 is shown here as well as the flow divider 27 in side view. It will be appreciated that the flow divider 27 can minimize the flow losses caused by the tumble flap in neutral position.
- the intermediate wall 22 is shown in side view, the Anstromkante the shape of the Tumbleklappe is adapted.
- the Tumbleklappe 15 is symmetrical to its axis of rotation X.
- a valve guide 37 for the valve stem 17 and a valve seat ring 39 for the valve disk 19 can be seen.
- a cooling water channel 38 is shown.
- the flange surface 40 of the cylinder head is used for screwing on a cylinder crankcase.
- FIG. 4 a shows parts of the cylinder head 11 in the region of the gas inlet valves 12, 13 of a cylinder and the flange housing 14 flanged thereto with a tumble flap 15 according to the invention in a section along the section line FF according to FIG.
- the cylinder head 11 forms a uniform undivided inlet channel inlet 21 at a flange-on plane 20. from the Anflanschebene 20, the inlet channel inlet 21 is divided by an intermediate wall 22 in two gas inlet channels 24, 25 to the two gas inlet valves 12, 13.
- the tumble flap 15 is a flow divider 27, the height of which corresponds approximately to the height of the tumble flap 15.
- Flow divider 27 and tumble flap 15 are shown in plan view, making it clear that they occupy only part of the height of the inlet channel entrance 21.
- the air supply channel 23 in the intermediate flange housing 14 is of the same cross section as the inlet channel inlet 21 in the cylinder head 11.
- the intermediate flange housing 14 forms a first flange surface 26 towards the cylinder head and a second flange surface 27 towards an air collecting tube.
- the tumble flap 15 is pivotable about its axis of rotation X perpendicular to the image plane.
- a pivot lever 28 is disposed below the Eisenflanschgephinuses 14, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the operative position of the tumble flap, which is aligned transversely to the flow direction, wherein a unilateral in the inlet channel inlet 21 and the gas inlet channels 24, 25 displaced flow is formed which is displaced to the overhead channel curvature outside.
- FIG. 5 shows a cross section through the intermediate flange 14 according to the section line B-B from FIG. 4 through the axis of rotation X of the tumble flap 15.
- the cylinder head 11 is visible in view. It can be seen that the Tumbleklappe 15 is rotated by means of the pivot lever 28 and the adjusting rod 30 by 90 ° relative to the neutral position. This position can be effected for example with a pressure cylinder which acts on one side and works against a return spring.
- the pivot lever of several cylinders can be operated with a single adjusting rod.
- the uniform undivided air supply duct in the area of the intermediate flange housing 23 thus has a unilaterally reduced free cross-section.
- the upper edge of the tumble flap 15 is substantially rectilinear.
- the height of the Tumbleklappe is about 40% of the channel height of the air supply channel 23. In the active position shown here, the Tumbleklappe affects the air inlet flow maximum.
- FIG. 6a shows a longitudinal section through the gas exchange valve 13 according to the section line C-C from FIG.
- the tumble flap 15 can be seen here in cross-section, as well as the flow divider 27 shown in side view. It can be seen that the tumble flap can shift the flow on one side to the outside of the curvature in the active position.
- FIG. 7 shows parts of a cylinder head 11 in the region of two gas inlet valves 12, 13 of a cylinder and an intermediate flange housing 14 flanged thereto with a swirl flap 15 according to the invention in a section according to the section line E-E of FIG.
- the cylinder head 11 forms at a Anflanschebene 20 a uniform undivided inlet passage 21.
- the tumble flap 15 is shown in section, making it clear that it occupies a substantial part of the height of the inlet channel inlet 21.
- the air supply passage 23 in the intermediate flange housing 14 is of the same cross section as the inlet passage 21 in the cylinder head 11.
- the intermediate flange housing can also form a plurality of identical flow channels for a plurality of adjacent cylinders of the cylinder head 11.
- the Intermediate flange housing 14 forms a first flange surface 26 towards the cylinder head and a second flange surface 36 towards an air collecting tube.
- the cylinder head integrally formed here as insectsschgephinuse components.
- realized in the intermediate flange housing components can also merge integrally into a Lucassammeirohr (intake manifold).
- the swirl flap 15 is pivotable about its axis of rotation X perpendicular to the image plane.
- a pivot lever 28 is disposed below the Eisenflanschgephinuses 14, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the neutral position of the swirl flap, which is aligned in the flow direction, wherein the swirl flap 15 improves the flow to the intermediate wall 22.
- FIG. 8 shows a cross section through the intermediate flange 14 according to the section line A-A from FIG. 7 through the axis of rotation X of the swirl flap 15.
- the cylinder head 11 is in.Ansicht recognizable.
- the swirl flap 15 is connected to a pivot 31 which protrudes downwards out of the intermediate flange housing 14 and is gas-tightly sealed with a seal 32 made, for example, of Teflon.
- Swirl flap 15 and pivot 31 are pressed together, but can also be integrally formed.
- On the pivot 31, in particular form-fitting the pivot lever 28 is placed, which is secured with a nut 33.
- a ball head 34 of the ball joint 29 is integrally arranged on which a ball socket 35 of the ball joint is placed, which is connected to the adjusting rod 30.
- the uniform undivided air supply channel 23 in the area of the intermediate flange housing has an oval cross section. Only in the region of the cylinder head 11, this cross section is divided by the intermediate wall 22 in two gas inlet channels 24, 25, which have substantially circular cross-section substantially. In the gas inlet channels 24, 25, the valve stems 16, 17 can be seen.
- the cross section of the swirl flap 15 is substantially adapted to the wall cross section of the intermediate wall 22. The height of the swirl flap corresponds to the full channel height of the air feed channel 23. In the here shown Neutral position, the swirl flap affects the air intake flow only minimally.
- FIG. 9 shows a longitudinal section through the gas exchange valve 13 according to the section line D-D from FIG.
- the swirl flap 15 is shown here in side view. Furthermore, the intermediate wall 22 is shown in side view, the leading edge of which is adapted to the shape of the swirl flap.
- the swirl flap 15 is asymmetrical to its axis of rotation X.
- a cooling water channel 38 is shown.
- the flange surface 40 of the cylinder head is used for screwing on a cylinder crankcase.
- FIG. 10 a shows parts of the cylinder head 11 in the region of the gas inlet valves 12, 13 of a cylinder and the intermediate flange housing 14 flanged thereto with a swirl flap 15 according to the invention in a section according to the section line F-F of FIG.
- the cylinder head 11 forms at a Anflanschebene 20 a uniform undivided inlet passage 21. With distance from the Anflanschebene 20 of the inlet passage 21 is divided by a partition wall 22 in two gas inlet channels 24, 25 to the two gas inlet valves 12, 13.
- the air supply passage 23 in the intermediate flange housing 14 is of the same cross section as the intake passage 21 in the cylinder head 11.
- the intermediate flange housing 14 forms a first flange surface 26 toward the cylinder head and a second flange surface 36 toward an air intake manifold.
- the swirl flap 15 is pivotable about its axis of rotation X perpendicular to the image plane.
- a pivot lever 28 is disposed below the Eisenflanschgephinuses 14, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the active position of the swirl flap, which is aligned transversely to the flow direction, wherein a one-sided in the inlet channel inlet 21 and the gas inlet channels 24, 25 displaced flow arises, which is preferably displaced to the inlet valve 17.
- FIG. 10b the same details as in FIG. 10a are given the same reference numerals.
- the foregoing description is referred to. Notwithstanding here is the throttle valve 15 is arranged in an attachment piece 41 which is formed integrally with the cylinder head. The function of the throttle valve remains unaffected.
- FIG. 11 shows a cross section through the intermediate flange 14 according to the section line B-B from FIG. 10 through the axis of rotation X of the swirl flap 15.
- the cylinder head 11 is visible in view. It can be seen that the swirl flap 15 is rotated by 90 ° relative to the neutral position by means of the pivoting lever 28 and the adjusting rod 30. This position can be effected for example with a pressure cylinder which acts on one side and works against a return spring.
- the pivot lever of several cylinders can be operated with a single adjusting rod.
- the uniform in the region of the intermediate flange housing undivided air supply channel 23 thereby has a unilaterally reduced free cross-section.
- the upper edge of the swirl flap 15 is substantially rectilinear.
- the width of the swirl flap is about 60% of the channel width of the Heilz manufacturedkanals 23. In the active position shown here, the swirl flap affects the maximum air inlet flow.
- FIG. 12 shows a longitudinal section through the gas exchange valve 13 according to the section line C-C from FIG. 11.
- the swirl flap 15 can be seen here in cross section. It will be appreciated that the swirl flap can shift the flow on one side in operative position.
- FIG. 13 shows parts of a cylinder head 11 in the region of two gas inlet valves 12, 13 of a cylinder and an intermediate flange housing 14 flanged thereto with a throttle flap 15 according to the invention in a section along the section line EE according to FIG.
- the cylinder head 11 forms a uniform undivided inlet channel inlet 21 at a flange plane 20.
- the inlet channel inlet 21 is replaced by an intermediate plane 20.
- a flow divider 27 Before the throttle valve 15 is a flow divider 27 whose height corresponds approximately to the height of the throttle valve 15.
- Flow divider 27 and throttle valve 15 are shown in section, which is clear that it occupies a substantial part of the height of the inlet channel inlet 21.
- the air supply channel 23 in the intermediate flange housing 14 is of the same cross section as the inlet channel inlet 21 in the cylinder head 11.
- the intermediate flange housing can also form a plurality of identical flow channels for a plurality of adjacent cylinders of the cylinder head 11.
- the intermediate flange housing 14 forms a first flange surface 26 toward the cylinder head and a second flange surface 36 toward an air collecting tube.
- the cylinder head integrally formed here as insectsschgephinuse components.
- realized in the intermediate flange housing components can also merge integrally into a Heilsammeirohr (intake manifold).
- the throttle valve 15 is pivotable about its perpendicular to the image plane rotation axis X.
- a pivot lever 28 is disposed below the Eisenflanschgephinuses 14, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the neutral position of the throttle valve, which is aligned in the flow direction, wherein the throttle valve 15 improves the flow to the intermediate wall 22.
- FIG. 14 shows a cross section through the intermediate flange 14 according to the section line AA from FIG. 13 through the axis of rotation X of the throttle flap 15.
- the cylinder head 11 is visible in view.
- the throttle valve 15 is connected to a pivot pin 31 which protrudes downwardly from the Eisenflanschgeophuse 14 and is sealed gas-tight with a seal 32, for example made of Teflon.
- Throttle valve 15 and pivot 31 are pressed together, but can also be integrally formed.
- On the pivot 31, in particular form-fitting the pivot lever 28 is placed, which is secured with a nut 33.
- a ball head 34 of the ball joint 29 is integrally arranged on which a ball socket 35 of the ball joint is placed, which is connected to the adjusting rod 30.
- the uniform undivided air supply 23 in the region of the intermediate flange housing has an oval cross section. Only in the region of the cylinder head 11, this cross section is divided by the intermediate wall 22 in two gas inlet channels 24, 25, which have substantially circular cross-section substantially. In the gas inlet channels 24, 25, the valve stems 16, 17 can be seen.
- the cross section of the throttle valve 15 is substantially adapted to the wall cross section of the intermediate wall 22. The height of the throttle valve corresponds to the full channel height of the air supply channel 23. In the neutral position shown here, the throttle affects the air intake flow only minimally. The influences are further reduced by the aforementioned flow divider 27.
- FIG. 15 shows a longitudinal section through the gas exchange valve 13 according to the section line D-D from FIG.
- the throttle valve 15 is shown here as well as the flow divider 27 in side view. It will be appreciated that the flow divider 27 can minimize the flow losses caused by the throttle in neutral.
- the intermediate wall 22 is shown in side view, the Anstromkante is adapted to the shape of the throttle.
- the throttle valve 15 is symmetrical to its axis of rotation X.
- On the cylinder head 11 in addition to the details already mentioned above, a valve guide 37 for the valve stem 17 and a valve seat ring 39 for the valve disk 19 can be seen.
- a cooling water channel 38 is shown.
- the flange surface 40 of the cylinder head is used for screwing on a cylinder crankcase.
- FIG. 16 shows parts of the cylinder head 11 in the region of the gas inlet valves 12, 13 of a cylinder and the intermediate flange housing 14 flanged thereto with a throttle valve 15 according to the invention in a section along the section line FF according to FIG.
- the cylinder head 11 forms at a Anflanschebene 20 a uniform undivided inlet channel inlet 21. Mit Distance from the Anflanschebene 20, the inlet channel inlet 21 through an intermediate wall 22 in two gas inlet channels 24, 25 to the two gas inlet valves 12,
- the intermediate flange housing 14 forms a first flange surface 26 toward the cylinder head and a second flange surface 36 toward an air intake manifold.
- the throttle valve 15 is pivotable about its perpendicular to the image plane rotation axis X.
- a pivot lever 28 is disposed below the insects 14, which is connected via a hinge 29 with an adjusting rod 30.
- the position shown here corresponds to the active position of the throttle valve, which is aligned transversely to the flow direction, wherein any flow is suppressed.
- FIG. 17 shows a cross section through the intermediate flange 14 according to the section line B-B from FIG. 16 through the axis of rotation X of the throttle flap 15.
- the cylinder head 11 is visible in view. It can be seen that the throttle valve 15 is rotated by means of the pivot lever 28 and the adjusting rod 30 by 90 ° relative to the neutral position. This position can be effected for example with a pressure cylinder which acts on one side and works against a return spring.
- the pivot lever of several cylinders can be operated with a single adjusting rod.
- the uniform undivided air supply channel 23 in the area of the intermediate flange housing thus has a closed cross section.
- FIG. 18 shows a longitudinal section through the gas exchange valve 13 according to the section line CC from FIG. 17.
- the throttle valve 15 can be seen here in cross section.
- the flow divider 27 is shown in side view. It can be seen that the throttle in the active position completely obstructs the flow into the combustion chamber. LIST OF REFERENCE NUMBERS
- Valve plate 0 Flange surface 1 Inlet channel inlet 2 Intermediate wall 3 Air supply channel 4 Gas inlet channel 5 Gas inlet channel 6 Flange surface 7 Flow divider 8 Swing lever 9 Joint 0 Adjusting rod 1 Swivel 2 Seal 3 Nut 4 Ball head 5 Ball cup 6 Flange surface 7 Valve guide Cooling water channel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2008/004662 WO2009149724A1 (de) | 2008-06-11 | 2008-06-11 | Integrierte luftklappe |
| DE112008003829T DE112008003829A5 (de) | 2008-06-11 | 2008-06-11 | Integrierte Luftklappe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2008/004662 WO2009149724A1 (de) | 2008-06-11 | 2008-06-11 | Integrierte luftklappe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009149724A1 true WO2009149724A1 (de) | 2009-12-17 |
Family
ID=40364292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/004662 Ceased WO2009149724A1 (de) | 2008-06-11 | 2008-06-11 | Integrierte luftklappe |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112008003829A5 (de) |
| WO (1) | WO2009149724A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2578846A1 (de) * | 2011-10-05 | 2013-04-10 | Mahle König Kommanditgesellschaft GmbH & Co | Motorzylinder |
| DE102015000016A1 (de) | 2015-01-07 | 2016-07-07 | Mann+Hummel Gmbh | Schaltvorrichtung mit Luftspaltisolierung im Zylinderkopfflansch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848712A (ja) * | 1981-09-02 | 1983-03-22 | Toyota Motor Corp | 内燃機関の吸気装置 |
| WO1989003473A1 (en) * | 1987-10-07 | 1989-04-20 | Keith Gordon Hall | Engine intake system |
| EP1172539A2 (de) * | 2000-07-11 | 2002-01-16 | Ford Global Technologies, Inc. | Ladungsbewegungssteuerklappe |
| DE10323978A1 (de) * | 2003-05-27 | 2004-12-16 | Adam Opel Ag | Brennkraftmaschine mit Kanalabschaltung und Zylinderkopf dafür |
| US20080098977A1 (en) * | 2006-10-30 | 2008-05-01 | Denso Corporation | Valve control device and valve control method for internal combustion engine |
-
2008
- 2008-06-11 DE DE112008003829T patent/DE112008003829A5/de not_active Withdrawn
- 2008-06-11 WO PCT/EP2008/004662 patent/WO2009149724A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5848712A (ja) * | 1981-09-02 | 1983-03-22 | Toyota Motor Corp | 内燃機関の吸気装置 |
| WO1989003473A1 (en) * | 1987-10-07 | 1989-04-20 | Keith Gordon Hall | Engine intake system |
| EP1172539A2 (de) * | 2000-07-11 | 2002-01-16 | Ford Global Technologies, Inc. | Ladungsbewegungssteuerklappe |
| DE10323978A1 (de) * | 2003-05-27 | 2004-12-16 | Adam Opel Ag | Brennkraftmaschine mit Kanalabschaltung und Zylinderkopf dafür |
| US20080098977A1 (en) * | 2006-10-30 | 2008-05-01 | Denso Corporation | Valve control device and valve control method for internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2578846A1 (de) * | 2011-10-05 | 2013-04-10 | Mahle König Kommanditgesellschaft GmbH & Co | Motorzylinder |
| DE102015000016A1 (de) | 2015-01-07 | 2016-07-07 | Mann+Hummel Gmbh | Schaltvorrichtung mit Luftspaltisolierung im Zylinderkopfflansch |
| EP3043043A1 (de) | 2015-01-07 | 2016-07-13 | Mann + Hummel Gmbh | Schaltvorrichtung mit luftspaltisolierung im zylinderkopfflansch |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112008003829A5 (de) | 2011-03-17 |
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