EP0358650B1 - Dispositif de commande d'au moins une section transversale d'etranglement d'au moins une ouverture de commande - Google Patents

Dispositif de commande d'au moins une section transversale d'etranglement d'au moins une ouverture de commande Download PDF

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Publication number
EP0358650B1
EP0358650B1 EP88903181A EP88903181A EP0358650B1 EP 0358650 B1 EP0358650 B1 EP 0358650B1 EP 88903181 A EP88903181 A EP 88903181A EP 88903181 A EP88903181 A EP 88903181A EP 0358650 B1 EP0358650 B1 EP 0358650B1
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EP
European Patent Office
Prior art keywords
throttle
opening
control opening
section
control
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.)
Expired - Lifetime
Application number
EP88903181A
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German (de)
English (en)
Other versions
EP0358650A1 (fr
Inventor
Harald Sailer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT88903181T priority Critical patent/ATE59216T1/de
Publication of EP0358650A1 publication Critical patent/EP0358650A1/fr
Application granted granted Critical
Publication of EP0358650B1 publication Critical patent/EP0358650B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
    • F02D9/16—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being rotatable
    • 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
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
    • 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
    • F02M3/00—Idling devices for carburettors
    • F02M3/06—Increasing idling speed
    • F02M2003/067—Increasing idling speed the valve for controlling the cross-section of the conduit being rotatable, but not being a screw-like valve

Definitions

  • the invention is based on a device according to the preamble of claim 1.
  • a device is already known (DE-A-32 34 468), but with the disadvantage that the opening of the control opening is complete, starting from an emergency running cross-section opening of the control opening, can only be reached after the maximum control path of the throttle element has been passed, for which purpose the maximum control current is required to excite the servomotor.
  • Such a device is used to regulate the idling speed of internal combustion engines in order to achieve favorable consumption and emission values at the lowest possible speed. The lowest possible idling speed is dependent on various operating states of the internal combustion engine, for example on the load condition, the outside and engine temperature or the power requirement of systems which are driven by the internal combustion engine, for example an air conditioning system.
  • the device according to the invention with the characterizing features of claim 1 has the advantage over that in the case of an ineffective, for example broken spring element and energized servomotor, the throttle element can be moved into a position that opens a safety cross section of the control opening, so that not only a safe continued operation of the internal combustion engine is ensured, but it is also avoided, for example, that the internal combustion engine reaches undesirably high speeds.
  • the throttle element with at least one throttle opening, which, starting from a position opening the emergency running cross-section, opens the at least one control opening more or less when the throttle element moves, the control openings or throttle openings having a rectangular or square cross-section can and the safety cross section of the control opening can be opened by a control edge of the throttle member.
  • bypass line with a left and a right control opening and the throttle element with a left and a right throttle opening
  • the emergency running cross-section being formed by at least partially covering the left control opening and the left throttle opening.
  • control opening of the bypass line as a parallelogram and the throttle opening of the throttle element as a triangle and to arrange them so that two legs of the throttle opening enclosing an acute angle run approximately parallel to two of the sides of the control opening and in a position of the complete opening the control opening, the two legs of the throttle opening and two adjacent sides of the control opening overlap.
  • the legs of the throttle opening and the sides of the control opening can merge into one another with a radius, which enables easier and more precise production.
  • FIG. 1 shows a diagram showing the flow rate per unit time ⁇ of the equipment over the adjustment path s of the throttle element
  • FIG. 2 shows a section through a device for controlling at least one throttle cross section along the line 11-11 in FIG. 3
  • FIG. 3 shows a section along the line 111-111 in Figure 2
  • Figure 4a to d a simplified representation of different positions of a throttle body with a throttle opening compared to a control opening in a first embodiment
  • Figure 5a to d a simplified representation of the positions of a throttle body with a triangular throttle opening compared to a parallelogram control opening in a second embodiment
  • FIG. 1 shows a diagram showing the flow rate per unit time ⁇ of the equipment over the adjustment path s of the throttle element
  • FIG. 2 shows a section through a device for controlling at least one throttle cross section along the line 11-11 in FIG. 3
  • FIG. 3 shows a section along the line 111-111 in Figure 2
  • Figure 4a to d a simplified representation of different positions of
  • FIGS. 6 shows a plan view of a device designed according to FIGS. 2 and 3 and designed with a control opening and a throttle opening according to FIGS. 5a to d
  • FIGS. 7a to d show a simplified representation of the positions of one with Two throttle openings designed throttle body compared to two control openings in a third embodiment.
  • FIG. 1 the flow per unit of time is shown in a diagram.
  • Quantity Q of an item of equipment to be controlled for example that to be controlled when an internal combustion engine is idling
  • Amount of idling air for the internal combustion engine represented over the adjustment path s of a throttle element of a device, as described in the following text using various exemplary embodiments.
  • combustion air flows in the direction of arrow 1 through an intake pipe 2 past a throttle valve 3 to an internal combustion engine (not shown).
  • a bypass line 5 is connected to the intake pipe 2, which leads around the throttle valve 3 and whose passage cross section can be changed by the device 6 by means of a throttle element 7.
  • the device 6 is controlled by an electronic control unit 8, on which at 10 the supply voltage supplied by the vehicle battery, at 11 the signal taken from the ignition distributor of the internal combustion engine for the speed of the internal combustion engine, at 12 the signal for the engine temperature and at 13 a position the throttle valve 3 characterizing voltage, which, for example, supplies a potentiometer connected to the throttle valve 3, is present. If necessary, further operating parameters of the internal combustion engine can be input to the electronic control unit 8.
  • the servomotor of the device 6 is an electric motor 15 (not shown in any more detail), which can be controlled by the electronic control unit 8 via a plug 16 as a function of operating parameters of the internal combustion engine.
  • the electric motor 15 rotates a hollow shaft 17 which is rotatably mounted about an axis 19 via roller bearings 18, which is pressed into a housing base 21 of a cup-shaped housing 22 of the device 6 and is fixed therein.
  • the throttle element 7 is connected in a rotationally fixed manner, which is designed in the form of a tubular segment and projects into a swivel space 24 designed in the housing base 21 and intersecting the bypass line 5.
  • an inlet connection 26 to the intake pipe 2 upstream of the throttle valve and, on the other hand, an outflow connection 27 to the intake pipe 2 downstream of the throttle valve 3 are connected to the swivel space 24.
  • the circumference of the tubular segment-shaped throttle element 7 extends as closely as possible to the wall of the swivel space 24.
  • At least one control opening 29 is cut out, which can be opened more or less by the throttle element 7.
  • the throttle member 7 in the form of a tubular segment can have a throttle opening 31 penetrating it, which is more or less brought into overlap with the control opening 29 when the throttle member 7 rotates and thereby opens the control opening 29 more or less to form a throttle cross section.
  • the rotation of the throttle element 7 by the electric motor 15 takes place counter to the force of a spring element, for example designed as a spiral spring 32, which is connected with its inner end to the hollow shaft 17 and with its outer end to the housing 22.
  • the spiral spring 32 rotates the hollow shaft 17 with a stop section 33 against a stop screw 34 screwed into the housing base 21.
  • the throttle element 7 When the stop section 33 abuts against the stop screw 34, the throttle element 7 is held in a starting position by the spiral spring 32 which the control opening 29 is not completely closed by the throttle member 7, but the throttle opening 31 is partially in register with the control opening 29, so that in this position an emergency running cross-section 36 remains open, through which bypass line 5 air or mixture from upstream of the throttle valve can flow into the intake pipe 2 downstream of the throttle valve 3. If the power supply to the device 6 fails, the amount of operating fluid flowing over the emergency running cross-section 36 is sufficient to provide a favorable fuel-air mixture for the continued operation of the internal combustion engine or to let a predetermined, favorable quantity flow to the engine when the internal combustion engine starts.
  • the amount of operating fluid flowing over the emergency running cross-section per unit of time is denoted by a N , in the presence of which the throttle element 7 is in its initial position zero.
  • the throttle element 7 is to perform a movement in the same direction of movement when the electric motor is excited. in which it initially opens the control opening 29 completely with the throttle opening 31 and only then is moved further by the electronic control unit in accordance with the control current dependent on the operating parameters of the internal combustion engine so that it more or less closes the control opening 29 again, i.e. the overlap between the throttle opening 31 and control opening 29 is reduced.
  • lorganes in which the maximum amount of equipment G max can flow via the control opening 29, can be achieved by moving the throttle element 7 in the same direction of motion as before, in accordance with the control signals of the control unit 8, to reduce the overlap between the control opening 29 and the throttle opening 31, so that if necessary, the throttle cross section formed between these two openings can be reduced, possibly closed, so that there is no longer any overlap between the control opening 29 and the throttle opening 31 and only a leakage quantity based on leaks flows through the bypass line 5.
  • the throttle member 7 in the event of a failure, for example breakage of the spiral spring 32, the throttle member 7 is moved by the excited electric motor 15 into a position s 4 , in which the throttle member 7 opens a safety cross section at the control opening 29, so that this Safety cross-section and an amount of operating fluid flows per unit of time G s via the bypass line 5, which ensures safe operation of the internal combustion engine that does not endanger the internal combustion engine and is less than the maximum possible amount of operating fluid flowing per unit of time Q max via the control opening 29.
  • the point E in FIG. 1, which characterizes the safety cross section, can be reached from the position S2 of the throttle element 7 at point C, in which only a leak quantity Q L flows according to the dash-dotted line 37, by a movement into the position s 4 , starting from from the leakage amount Q ⁇ L at point C, the throttle cross-section at control opening 29 is enlarged again to point E.
  • Another possibility is to first move the throttle element 7 from position s 2 to position s 3 without opening control opening 29.
  • the adjustment movement from the position s 2 to the position S 3 of the throttle element 7 is characterized by the course of the curve from point C to point D. In the adjustment range between the position S2 and the position S3 , only the leakage amount Q ⁇ L can flow through the control opening 29.
  • the characteristic curve shown ensures that even in the most unfavorable starting conditions of the internal combustion engine, in which the supply voltage of the motor vehicle battery has dropped due to low starting temperatures and a current requirement for other units of the internal combustion engine, this low supply voltage is still sufficient to move the throttle element 7 into a position s, to move, in which a mostly required maximum amount of operating fluid Q max can flow via the bypass line 5 for the safe starting and continuing operation of the internal combustion engine.
  • FIGS. 4a to d show an embodiment of a throttle element 7 and a control opening 29 of a device 6 according to FIGS. 2 and 3, with which a characteristic curve corresponding to the curve A to E according to FIG. 1 can be achieved.
  • the same reference numerals have been chosen for the same and equivalent parts.
  • the configuration according to FIGS. 4a to d can be used not only in a configuration of the throttle element as a rotary slide valve, but also in other configurations of the throttle element 7, for example in the form of a flat flat slide valve.
  • the throttle element 7 is designed, for example, as a flat flat slide valve and has a throttle opening 31 of rectangular shape, which can also be square, circular or spherical in some other form.
  • the throttle opening 31 is open to the edge 38 of the throttle member 7, but it can also be closed.
  • the throttle opening 31 is delimited in the direction of movement by a right wing 40 and on the other hand by a left wing 41.
  • the throttle body 7 takes its off 1, and in which the control opening 29 and the throttle opening 31 only partially overlap, so that the emergency running cross-section 36 remains open at the control opening 29, while the left wing 41 partially blocks the control opening 29 .
  • the control opening 29 is shown in a rectangular shape, but it can also be square, circular or in another spherical shape.
  • the throttle element 7 can now be moved further to the left in accordance with FIG. 4d in order to position the control opening 29 in the position s 4 corresponding to the point E in FIG. 1 with a control edge 42 formed on the right wing 40 Forming a security cross section 43 to open something again.
  • FIGS. 5a to d A further exemplary embodiment of the device 6 according to FIGS. 2 and 3 for representing a characteristic curve according to FIG. 1 is shown in FIGS. 5a to d, in which the reference numerals already used are used for the same and equivalent parts.
  • the control opening 29 of the device 6 has the shape of a parallelogram and the throttle opening 31 formed in the throttle element 7 has the shape of a triangle which, for example, is open towards one edge of the throttle element, as shown, but also can be closed.
  • the throttle element 7 can also be flat, curved or be designed in another shape.
  • the right wing 40 is delimited by a left leg 45 of the triangular throttle opening 31 and the left wing 41 by a right leg 46 of the throttle opening 31.
  • the left leg 45 and the right leg 46 form an acute angle a between them, which corresponds to the acute angle of the parallelogram-shaped control opening 29 between two adjacent sides of the control opening.
  • Throttle element 7 and control opening 29 are arranged in relation to one another such that the left leg 45 and the right leg 46 each run parallel to two of the sides of the control opening 29 and the legs 45, 46 of the throttle opening 31 enclosing the angle ⁇ when the throttle element 7 moves a position in which the control opening 29 is fully open. overlap with two adjacent sides that also enclose an angle ⁇ . In the position of the throttle member 7 shown in FIG.
  • FIG. 5a shows the starting position, in which the control opening 29 and throttle opening 31 partially overlap to form the emergency running cross-section 36, that is to say the right wing 40 only partially covers the control opening 29 with the left leg 45.
  • FIG. 5b shows the position S1 of the throttle element 7 according to FIG. 1, in which the throttle opening 31 completely opens the control opening 29 for the passage of a maximum amount of operating medium Gmax and the legs 45, 46 overlap with two adjacent sides of the parallelogram-shaped control opening 29.
  • FIG. 5c shows the position s 2 according to FIG. 1 of the throttle element 7, in which the left wing 41 completely blocks the control opening 29 and only a leakage amount 0 can flow.
  • the throttle element 7 can be moved further to the right into a position s 4 according to FIG. 1, in which part of the control opening 29 is opened again with the control edge 42 of the left wing 41.
  • FIG. 6 shows a top view of a device 6 according to FIGS. 2 and 3 with a view into the inflow connector 26, through which the control opening 29 can be seen. which can be controlled by a throttle element 7 shown in dashed lines.
  • the control opening 29 is designed in parallelogram form in accordance with the exemplary embodiment according to FIGS.
  • the legs 45, 46 of the throttle opening 31 and the sides of the control opening 29 merge into one another at a radius 47 in the illustration according to FIG. 6, as a result of which these openings can be produced more easily and more precisely.
  • the control opening 49 arranged on the right is narrower than the control opening 50 arranged on the left and the throttle opening 51 arranged on the right is narrower than the one on the left arranged throttle opening 52.
  • the distance between the openings can be chosen in such a way that in the starting position of the throttle element 7, that is to say when the electric motor 15 is not energized, the right control opening 49 is closed by the throttle element 7 and the left control opening 50 is partially closed with the left Throttle opening 52 for forming the emergency running cross-section 36 is covered, as shown in FIG. 7a.
  • the right control opening 49 is closed by the throttle element 7 and the left control opening 50 is partially closed with the left Throttle opening 52 for forming the emergency running cross-section 36 is covered, as shown in FIG. 7a.
  • the two control openings 49, 50 are completely opened by the throttle openings 51, 52, so that the maximum amount of operating medium Gmax can flow via the bypass line 5.
  • the throttle member 7 also formed as a flat slide, rotating slide, or in some other form, the throttle member 7 2 enters a 7c in FIG position shown s, in which the control openings 49, 50 are closed and in accordance with Figure 1, only a leakage amount ⁇ L flows.
  • the throttle element 7 assumes a position s 4 according to FIG. 1, as shown in FIG. 7d, in which the control edge 42 partially opens the left control opening 50 to form a safety cross section 43.
  • the right control opening 49 is not used in the exemplary embodiment shown to form the safety cross section, but the configuration could also be chosen in this way. that part of the control opening 50 and part of the control opening 49 are opened to form the safety cross section, as not shown.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

Un inconvénient des dispositifs connus de commande du ralenti de moteurs à combustion interne est le fait qu'une ouverture totale de la section transversale de commande n'est atteinte que lorsque le trajet maximum d'ajustement n'a été traversé, ce qui permet d'obtenir une ouverture totale de la section transversale d'étranglement même avec une faible énergie d'alimentation fournie par la batterie du véhicule. Un organe d'étranglement (7) susceptible d'être mis en rotation par un moteur électrique comprend une ouverture (31) triangulaire d'étranglement qui à l'état non-excité du moteur électrique (15) ouvre une ouverture (29) de commande ayant la forme d'un parallélogramme et ménagée dans le dispositif et forme partiellement une section transversale d'urgence (36). Lorsque le moteur électrique (15) est excité, l'organe d'étranglement (7) et premièrement mis en rotation jusqu'à une position dans laquelle l'ouverture d'étranglement (31) ouvre complètement l'ouverture de commande (29) et ce n'est que par la suite, en ajustant effectivement la section transversale d'étranglement par une mise ultérieure en rotation, que l'on peut ouvrir dans une plus grande ou moindre mesure l'ouverture de commande (29) au moyen de l'ouverture d'étranglement (31). Le dispositif est utilisé pour régler le ralenti dans des moteurs à combustion interne.

Claims (11)

1. Dispositif de commande d'au moins une section transversale d'étranglement sur au moins une ouverture de commande (29, 49, 50), dans une conduite de dérivation (5) véhiculant un fluide de fonctionnement, pour le réglage de la vitesse de rotation du ralenti d'un moteur à combustion interne à l'aide d'un servomoteur électrique (15), au moyen duquel, lors de l'excitation, un organe d'étranglement (7) est actionnable contre la force d'un élément à ressort (32), de telle façon qu'il ouvre plus ou moins au moins une ouverture de commande (29, 49, 50), alors qu'à l'état non excité du servomoteur, l'organe d'étranglement (7) peut être déplacé par l'élément à ressort (32), en une position dans laquelle il ouvre une section transversale de fonctionnement de secours (36) d'au moins une ouverture de commande (29, 49, 50), caractérisé en ce que, lorsque l'élément à ressort (32) est hors d'action et que le servomoteur (15) est excité, l'organe d'étranglement (7) est déplaçable dans une position qui ouvre une section transversale de sécurité (43) de l'ouverture de commande (29, 49, 50), une quantité de fluide de fonctionnement s'écoulant par la section transversale de sécurité (43), qui est plus faible que la quantité maximale possible du fluide de fonctionnement.
2. Dispositif selon la revendication 1, caractérisé en ce que l'organe d'étranglement (7) est déplaçable dans sa position ouvrant la section transversale de sécurité (43) en passant par sa position fermant l'ouverture de commande (29, 49, 50).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'organe d'étranglement (7) comporte au moins une ouverture d'étranglement (31, 51, 52), qui ouvre plus ou moins au moins une ouverture de commande (29, 49, 50) lors d'un déplacement de l'organe d'étranglement (7).
4. Dispositif selon la revendication 3, caractérisé en ce que la section transversale de sécurité (43) de l'ouverture de commande (29, 49, 50) est ouverte par une arête de commande (42) de l'organe d'étranglement.
5. Dispositif selon la revendication 3, caractérisé en ce que chaque ouverture de commande (29, 49, 50) et chaque ouverture d'étranglement (31, 51, 52) présentent une section transversale rectangulaire ou carrée.
6. Dispositif selon la revendication 3, caractérisé en ce que la conduite de dérivation (5) comporte une ouverture de commande gauche (50) et une droite (49), et l'organe d'étranglement (7) présente une ouverture d'étranglement gauche (52) et une droite (51), et en ce que la section transversale de fonctionnement de secours (36) est formée par un recouvrement au moins partiel de l'ouverture de commande gauche (50) et de l'ouverture d'étranglement gauche (52).
7. Dispositif selon la revendication 3, caractérisé en ce que l'ouverture de commande (29) de la conduite de dérivation (5) est réalisée sous forme de parallélogramme et que l'ouverture d'étranglement (31) de l'organe d'étranglement (7) est réalisée sous forme d'un triangle, et celles-ci étant disposées l'une par rapport à l'autre de façon que deux côtés (45, 46) formant un angle aigu (a) de l'ouverture d'étranglement (31) soient à peu près parallèles respectivement aux côtés de l'ouverture de commande (29) et que, dans une position d'ouverture complète de l'ouverture de commande (29), les deux côtés (45, 46) de l'ouverture d'étranglement (31) et deux côtés voisins de l'ouverture de commande (29) viennent se recouvrir en coïncidence.
8. Dispositif selon la revendication 7, caractérisé en ce que les côtés (45, 46) de l'ouverture d'étranglement (31) et les côtés de l'ouverture de commande (29) se transforment les uns dans les autres, sous l'effet d'un rayon (47).
9. Dispositif selon la revendication 7, caractérisé en ce qu'une ouverture de commande (29) en forme de parallélogramme et une ouverture d'étranglement (31) de forme triangulaire (31) se recouvrent partiellement pour former la section transversale de fonctionnement de secours (36).
10. Dispositif selon la revendication 9, caractérisé en ce que la section transversale de sécurité (43) de l'ouverture de commande (29) est ouverte par une arête de commande (42) de l'organe de commande (7).
11. Dispositif selon une des revendications précédentes, caractérisé en ce que l'organe d'étranglement (7) est réalisé sous forme d'un tiroir rotatif pénétrant dans la conduite de dérivation (5).
EP88903181A 1987-05-19 1988-04-20 Dispositif de commande d'au moins une section transversale d'etranglement d'au moins une ouverture de commande Expired - Lifetime EP0358650B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88903181T ATE59216T1 (de) 1987-05-19 1988-04-20 Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3716663 1987-05-19
DE3716663 1987-05-19
DE3801084A DE3801084A1 (de) 1987-05-19 1988-01-16 Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung
DE3801084 1988-01-16

Publications (2)

Publication Number Publication Date
EP0358650A1 EP0358650A1 (fr) 1990-03-21
EP0358650B1 true EP0358650B1 (fr) 1990-12-19

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Application Number Title Priority Date Filing Date
EP88903181A Expired - Lifetime EP0358650B1 (fr) 1987-05-19 1988-04-20 Dispositif de commande d'au moins une section transversale d'etranglement d'au moins une ouverture de commande

Country Status (9)

Country Link
US (1) US4979484A (fr)
EP (1) EP0358650B1 (fr)
JP (1) JPH02503585A (fr)
KR (1) KR890701888A (fr)
AU (1) AU612649B2 (fr)
BR (1) BR8807509A (fr)
DE (2) DE3801084A1 (fr)
ES (1) ES2006667A6 (fr)
WO (1) WO1988009434A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716661A1 (de) * 1987-05-19 1988-12-08 Bosch Gmbh Robert Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung
DE3909396A1 (de) * 1989-03-22 1990-10-04 Bayerische Motoren Werke Ag Vorrichtung zur bemessung der leerlaufluft von brennkraftmaschinen
DE3926912A1 (de) * 1989-08-16 1991-02-21 Bosch Gmbh Robert Elektromagnetischer drehsteller
DE4007260A1 (de) * 1990-03-08 1991-09-12 Bosch Gmbh Robert Drehsteller
WO2001059279A1 (fr) 2000-02-10 2001-08-16 Siemens Aktiengesellschaft Ensemble papillon des gaz comportant une unite d'alimentation de secours en air
DE10123033A1 (de) * 2001-05-11 2002-11-14 Bosch Gmbh Robert Drosselvorrichtung für ein strömendes Medium
KR20040015975A (ko) * 2002-08-14 2004-02-21 현대자동차주식회사 엘피지 차량 아이들 스피드 콘트롤 시스템의 카본 부착방지구조

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200096A1 (de) * 1982-01-05 1983-07-14 Robert Bosch Gmbh, 7000 Stuttgart Stelleinrichtung
DE3218210A1 (de) * 1982-05-14 1983-11-17 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur steuerung mindestens eines drosselquerschnittes in einer steuerleitung
DE3234468A1 (de) * 1982-09-17 1984-03-22 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und vorrichtung zur steuerung mindestens eines drosselquerschnittes in einer steuerleitung
US4483309A (en) * 1983-05-18 1984-11-20 Juanita Norman Fuel-air control device
DE3328960A1 (de) * 1983-08-11 1985-02-21 Vdo Adolf Schindling Ag, 6000 Frankfurt Ventilanordnung
DE3340060A1 (de) * 1983-11-05 1984-12-20 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur regelung des leerlaufs einer gemischverdichtenden brennkraftmaschine
DE3716661A1 (de) * 1987-05-19 1988-12-08 Bosch Gmbh Robert Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung

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DE3801084A1 (de) 1988-12-08
KR890701888A (ko) 1989-12-22
US4979484A (en) 1990-12-25
AU1595788A (en) 1988-12-21
BR8807509A (pt) 1990-04-17
WO1988009434A1 (fr) 1988-12-01
AU612649B2 (en) 1991-07-18
JPH02503585A (ja) 1990-10-25
DE3861321D1 (de) 1991-01-31
ES2006667A6 (es) 1989-05-01
EP0358650A1 (fr) 1990-03-21

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