Patent FR858233A successfully refreshed from Google Patents.
Patent US3967601A successfully refreshed from Google Patents.
US3967601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control
Assignee: Rolls Royce Solutions GmbH
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Filing: 1975-08-07
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Granted: 1976-07-06
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Expires: 1995-08-07
Abstract
Abstract A valve control for internal combustion engines with four valves per cylinder arranged in the cylinder head which are actuated from a cam shaft by way of push rods and rocker arms supported in bearing brackets; the two valves disposed closer to the actuating side are thereby actuated by way of a common rocker arm or individual rocker arms while the rocker arms for the other two valves extend arcuately shaped about a respective one of the bearing brackets and one of the first two valves; each of these rocker arms is provided with a pivot pin and the centers of the pivot points of the push rods and valve shafts of these rocker arms are arranged in a common plane disposed perpendicular to the axis of the respective pivot pin.
Inventors
- 👤 Hansjorg Heberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F02; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/247
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A valve control for internal combustion engines with several valve means per cylinder arranged in the cylinder head which are actuated from a cam shaft by way of push rod means and rocker arm means supported in bearing bracket means, each valve means disposed nearer the actuating side being actuated by way of first rocker arm means, characterized in that each valve means disposed more remote from the actuating side is actuated by a further rocker arm means, each further rocker arm means extending arcuately shaped about a corresponding bearing bracket means and a first valve means, each of said further rocker arm means including a bearing pin means for pivotally supporting a further rocker arm means in a corresponding bearing bracket means, and the centers of the bearing points of the push rod means and valve stem means of said further rocker arm means and the center of the bearing place in the rocker arm bearing bracket means being arranged in a common plane disposed perpendicular to the axis of the bearing pin.
Claim 2
Dependent Claim
174 words
A valve control for internal combustion engines with several valve means per cylinder arranged in the cylinder head which are actuated from a cam shaft by way of push rod means and rocker arm means supported in bearing bracket means, each valve means disposed nearer the actuating side being actuated by way of first rocker arm means, characterized in that each valve means disposed more remote from the actuating side is actuated by a further rocker arm means, each further rocker arm means extending arcuately shaped about a corresponding bearing bracket means and a first valve means, each of said further rocker arm means including a bearing pin means for pivotally supporting a further rocker arm means in a corresponding bearing bracket means, and the centers of the bearing points of the push rod means and valve stem means of said further rocker arm means and the center of the bearing place in the rocker arm bearing bracket means being arranged in a common plane disposed perpendicular to the axis of the bearing pin.
Claim 3
Dependent Claim
64 words
A valve control according to claim 1, characterized in that four valves are arranged in the cylinder head per each cylinder, two of said four valves being located closer to the actuating side and two valves being located further away from the actuating side, the two valves disposed further away from the actuating side being each actuated by a respective further rocker arm means.
Claim 4
Dependent Claim
22 words
A valve control according to claim 2, characterized in that the first two valves are actuated by a common rocker arm means.
Claim 5
Dependent Claim
22 words
A valve control according to claim 2, characterized in that the two first valves are actuated by two individual rocker arm means.
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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |