US4369740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-actuating lever
Assignee: Bayerische Motoren Werke AG
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Filing: 1980-02-21
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Granted: 1983-01-25
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Expires: 2000-02-21
Abstract
Abstract A valve-actuating lever, especially a rocker arm or drag lever, for internal combustion engines which is provided at its end actuating the valve on both sides of the valve abutment surface with one lateral guide surface each; the valve abutment surface is thereby formed at a valve-clearance adjusting element fixed at the lever between the lateral guide surfaces.
Inventors
- 👤 Jiri Seidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/185; F01L2001/187
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
188 words
A valve actuating lever for internal combustion engines comprising lateral guide surface means on opposed sides of a valve abutment surface means of said lever, said valve abutment surface means being provided on a valve clearance adjusting means which is positioned between said lateral guide surface means and is fixedly clamped on opposed sides by said lateral guide surface means, a portion of said lateral guide surface means extending beyond said valve abutment surface means for guiding the lever along an abutting valve so as to secure the position of the lever during operation, wherein said valve clearance adjusting means is constructed as an eccentric element which is fixedly clamped on opposed sides by said lateral guide surface means, and in which the lateral guide surface means are components of flanges of a sheet metal stamping having an essentially U-shaped cross section and provided with a bearing plate constructed as an essentially closed ball socket with the flanges adjoining the ball socket on the side thereof toward said valve clearance adjusting means converging locally into mutual contact and being connected thereat with each other by a welded connection.
Claim 2
Dependent Claim
188 words
A valve actuating lever for internal combustion engines comprising lateral guide surface means on opposed sides of a valve abutment surface means of said lever, said valve abutment surface means being provided on a valve clearance adjusting means which is positioned between said lateral guide surface means and is fixedly clamped on opposed sides by said lateral guide surface means, a portion of said lateral guide surface means extending beyond said valve abutment surface means for guiding the lever along an abutting valve so as to secure the position of the lever during operation, wherein said valve clearance adjusting means is constructed as an eccentric element which is fixedly clamped on opposed sides by said lateral guide surface means, and in which the lateral guide surface means are components of flanges of a sheet metal stamping having an essentially U-shaped cross section and provided with a bearing plate constructed as an essentially closed ball socket with the flanges adjoining the ball socket on the side thereof toward said valve clearance adjusting means converging locally into mutual contact and being connected thereat with each other by a welded connection.
Claim 3
Dependent Claim
38 words
A lever according to claim 1, characterized in that the web of the U-shaped cross section is provided with a slot arranged longitudinally of the lever within the area in which the flanges are connected with each other.
Claim 4
Dependent Claim
21 words
A lever according to claim 2, characterized in that the slot is constructed as a support opening for a retaining spring.
Claim 5
Dependent Claim
34 words
A lever according to claim 1, wherein said valve clearance adjusting means is fixedly clamped using a threaded bolt and nut, said bolt passing through said lateral guide surface means and said eccentric element.
Claim 6
Dependent Claim
148 words
A valve-actuating lever for internal combustion engines comprising lateral guide surface means on opposed sides of a valve abutment surface means of said lever, said valve abutment surface means being provided on a valve clearance adjusting means which is positioned between said lateral guide surface means and is fixedly clamped on opposed sides by said lateral guide surface means, a portion of said lateral guide surface means extending beyond said valve abutment surface means for guiding the lever along an abutting valve so as to secure the position of the lever during operation, and wherein said valve clearance adjusting means is constructed as an eccentric element which is fixedly clamped on opposed sides by said lateral guide surface means, and wherein said valve clearance adjusting means is fixedly clamped using a threaded bolt and nut, said bolt passing through said lateral guide surface means and said eccentric element.
Claim 7
Dependent Claim
148 words
A valve-actuating lever for internal combustion engines comprising lateral guide surface means on opposed sides of a valve abutment surface means of said lever, said valve abutment surface means being provided on a valve clearance adjusting means which is positioned between said lateral guide surface means and is fixedly clamped on opposed sides by said lateral guide surface means, a portion of said lateral guide surface means extending beyond said valve abutment surface means for guiding the lever along an abutting valve so as to secure the position of the lever during operation, and wherein said valve clearance adjusting means is constructed as an eccentric element which is fixedly clamped on opposed sides by said lateral guide surface means, and wherein said valve clearance adjusting means is fixedly clamped using a threaded bolt and nut, said bolt passing through said lateral guide surface means and said eccentric element.
Claim 8
Dependent Claim
16 words
A lever according to claim 5, characterized in that the valve clearance adjusting means is adjustable.
Claim 9
Dependent Claim
16 words
A lever according to claim 5, characterized in that the valve clearance adjusting means is interchangeable.
Claim 10
Dependent Claim
15 words
A lever according to claim 5, characterized in that the lever is a drag lever.
Claim 11
Dependent Claim
40 words
A lever according to claim 4, wherein said eccentric is rotatable on said threaded bolt so that before being clamped by said lateral guide surface means said eccentric element may be rotated on the bolt for adjusting the valve clearance.
Claim 12
Dependent Claim
27 words
A lever according to claim 9, wherein said lateral guide surface means comprises two parallel clamping surfaces between which said valve clearance adjusting means is fixedly clamped.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |