WO1998042954A1 - Ventilführung eines verbrennungsmotors - Google Patents
Ventilführung eines verbrennungsmotors Download PDFInfo
- Publication number
- WO1998042954A1 WO1998042954A1 PCT/EP1998/001711 EP9801711W WO9842954A1 WO 1998042954 A1 WO1998042954 A1 WO 1998042954A1 EP 9801711 W EP9801711 W EP 9801711W WO 9842954 A1 WO9842954 A1 WO 9842954A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve according
- valve
- ball
- channel
- guide sleeve
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/12—Cooling of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F2007/1692—Electromagnets or actuators with two coils
Definitions
- the invention relates to a valve for an internal combustion engine with the features of the preamble of claim 1.
- valve stems of valves of internal combustion engines It is common to mount the stems of valves of internal combustion engines by means of plain bearings, with the valve stem often being guided in a shrunk-in valve sleeve for this purpose.
- a water channel is provided in the vicinity of the valve sleeve for heat dissipation.
- Lubrication is usually carried out by means of an oil bath in the valve train through the leakage current in the valve stem seal.
- the balls move between the walls of this bearing unit and the valve stem to be stored.
- the bearing unit is accommodated in a bore in the cylinder head by means of further ball rings, which allow the bearing unit to rotate.
- the invention has for its object to achieve good heat dissipation via the storage, to avoid an oil bath and to create a pressure compensation for the storage. This object is solved by the features of claim 1.
- FIG. 2 is a drawn-out detail of FIG. 1
- Fig. 3 shows the use of a compensation channel between
- a closed valve 1 is shown, the valve stem 2 is mounted in the cylinder head 4 by means of a ball bearing 3 with two spherical rings.
- the valve is brought into the closed position by a return spring 5.
- a drive for example an electromagnetic drive, works on the end of the valve stem 2.
- the ball bearing is drawn out enlarged on one side in FIG. It has a deep-drawn, thin-walled guide sleeve 6, for example made of needle bearing material or anodized aluminum, which includes the two ball bearing rims 3a and 3b and a ball cage 3c.
- a grease reservoir 7 eg silicone grease
- a channel can be provided in the cylinder head, through which grease can be supplied at long intervals, for example when servicing.
- droplet lubrication in which oil is fed into the bearing at large time intervals via a channel 18. This can be done by means of a pump and / or via an electromagnetic metering valve.
- the ball cage 3c for example made of aluminum, should have minimal play to the shaft 2 and to the sleeve 6 in order to ensure good heat dissipation, as indicated in FIG. 2.
- the spherical ring 3b in contrast to the spherical ring 3a, is stored in grease.
- the sleeve 6 is closed here by a cover 6a, the adjoining space 6b of which is also filled with grease.
- a stop 9 is provided for the ball cage.
- the ball cage can also be slotted.
- a pressure compensation channel 10 'for external pressure is provided here.
- the duct 10 'of the intake and / or exhaust valve is preferably guided to the intake duct of the engine.
- a stop sleeve 9 is also provided for the ball cage, which ensures the correct position (centering) and optimal rolling of the balls.
- the usual spring support can be connected to the ball guide sleeve 6 to form a component, thereby simplifying construction and assembly.
- the arrows 13 in Fig. 1 show the heat dissipation paths via the valve.
- a small excess pressure (1-2 bar) is preferably generated outside the storage in a housing G by means of a pump P in order to avoid contamination. This is of particular interest in the exhaust valve.
- a pressure equalization channel 10 indicated in FIG. 1 between the valve stems of an intake and exhaust valve 11 and 12 is drawn out in FIG. 3. This channel reduces the influence of the different pressures on the lubrication and the ball cage.
- the duct 10 can, if required, be connected to the outside air (duct 10 ", FIG. 3) or, in particular in the case of the outlet valve, to the pressure housing G mentioned (duct 10 '" , FIG. 1). The overpressure in the housing G prevents exhaust gases with contaminants from entering the valve stem area.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54323998A JP2001526754A (ja) | 1997-03-24 | 1998-03-24 | 内燃機関の弁 |
| EP98924074A EP0970294A1 (de) | 1997-03-24 | 1998-03-24 | Ventilführung eines verbrennungsmotors |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712059A DE19712059A1 (de) | 1997-03-24 | 1997-03-24 | Ventil für einen Verbrennungsmotor E 5 |
| DE19712059.8 | 1997-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998042954A1 true WO1998042954A1 (de) | 1998-10-01 |
Family
ID=7824283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1998/001711 Ceased WO1998042954A1 (de) | 1997-03-24 | 1998-03-24 | Ventilführung eines verbrennungsmotors |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0970294A1 (de) |
| JP (1) | JP2001526754A (de) |
| DE (1) | DE19712059A1 (de) |
| WO (1) | WO1998042954A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10014630B4 (de) * | 2000-03-24 | 2017-12-14 | Franz Haimer Maschinenbau Kg | Mehrkoordinaten-Tastmessgerät |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1972650A (en) | 1934-02-20 | 1934-09-04 | Walter T Gassaway | Removable valve guide |
| US5435280A (en) * | 1994-05-20 | 1995-07-25 | Caterpillar Inc. | Method of mounting a ceramic valve guide assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3346371A1 (de) * | 1983-12-22 | 1985-07-04 | Audi AG, 8070 Ingolstadt | Vorrichtung zum schmieren der schaefte von gaswechsel-ventilen im zylinderkopf einer hubkolben-brennkraftmaschine |
| DE4122330A1 (de) * | 1991-07-05 | 1993-01-07 | Man Dezentrale Energiesysteme | Ventilschaftfuehrung von verbrennungsmotoren |
-
1997
- 1997-03-24 DE DE19712059A patent/DE19712059A1/de not_active Withdrawn
-
1998
- 1998-03-24 WO PCT/EP1998/001711 patent/WO1998042954A1/de not_active Ceased
- 1998-03-24 EP EP98924074A patent/EP0970294A1/de not_active Withdrawn
- 1998-03-24 JP JP54323998A patent/JP2001526754A/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1972650A (en) | 1934-02-20 | 1934-09-04 | Walter T Gassaway | Removable valve guide |
| US5435280A (en) * | 1994-05-20 | 1995-07-25 | Caterpillar Inc. | Method of mounting a ceramic valve guide assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0970294A1 (de) | 2000-01-12 |
| DE19712059A1 (de) | 1998-10-01 |
| JP2001526754A (ja) | 2001-12-18 |
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