US3716036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve actuating assembly
Assignee: Volkswagen AG
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Filing: 1970-12-11
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Granted: 1973-02-13
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Expires: 1990-12-11
Abstract
Abstract An internal combustion engine valve actuating assembly in which a valve actuating lever is fulcrumed on telescopically associated piston and cylinder members jointly defining an expansible chamber for reception of pressurized fluid tending to relatively extend said members. The bearing or fulcrum of the lever is located between the opposite axial ends of the slidably interengaged areas or interface of the members to minimize the creation of torque and/or tilting forces by longitudinal thrust of the lever.
Inventors
- 👤 H Kruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:30
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/2405; F01L1/12; F01L1/18; F01L2001/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
Valve actuating assembly, especially for an internal combustion engine, comprising telescopically arranged piston and cylinder members jointly defining a variable volume chamber into which a fluid pressure medium is supplied through a non-return valve; said cylinder member being fixedly supported and said members having portions slideably engaging each other to form a sliding track within said cylinder member; a lever extending transversely to the cylindrical axis of said members; a bearing located axially on said piston member at least partly between the opposite axial ends of such sliding track, said bearing pivotally supporting said lever for rocking movement about said bearing in the plane of the cylindrical axis of said members to actuate a valve of the assembly, whereby to minimize tilting forces on said piston member arising from longitudinal thrust from said member to institute its rocking movement, said bearing being formed by an extension of said piston member engaging around the free end of said cylinder and extending outside thereof and at least partly over the sliding track region of said piston and said cylinder members.
Claim 2
Dependent Claim
178 words
Valve actuating assembly, especially for an internal combustion engine, comprising telescopically arranged piston and cylinder members jointly defining a variable volume chamber into which a fluid pressure medium is supplied through a non-return valve; said cylinder member being fixedly supported and said members having portions slideably engaging each other to form a sliding track within said cylinder member; a lever extending transversely to the cylindrical axis of said members; a bearing located axially on said piston member at least partly between the opposite axial ends of such sliding track, said bearing pivotally supporting said lever for rocking movement about said bearing in the plane of the cylindrical axis of said members to actuate a valve of the assembly, whereby to minimize tilting forces on said piston member arising from longitudinal thrust from said member to institute its rocking movement, said bearing being formed by an extension of said piston member engaging around the free end of said cylinder and extending outside thereof and at least partly over the sliding track region of said piston and said cylinder members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |