Patent US4534324A successfully refreshed from Google Patents.
US4534324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control for a reciprocating piston internal combustion engine
Assignee: Rolls Royce Solutions GmbH
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Filing: 1983-09-19
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Granted: 1985-08-13
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Expires: 2003-09-19
Abstract
Abstract A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder are actuated in unison by a traverse moved by a rocker arm; the pivotally constructed traverse adapts itself to different valve stem heights of the valve pair by assuming different inclined positions; a self-adjusting torque support mechanism cooperates with the traverse and limits the inclination of the traverse to the extent resulting from the differences of the valve stem heights; an accurate synchronous operation of the valves actuated in unison is assured thereby.
Inventors
- 👤 Herbert Deutschmann
- 👤 Hans Dinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:40
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: 8
Claim 1
Independent Claim
115 words
A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder head are actuated in unison by a traverse means displaced by a rocker arm means, and in which the traverse means is pivotally constructed, comprising a bolt means operable to guide the traverse means rectilinearly is rotatably arranged at the cylinder head transversely to the connecting line of the valves, the traverse means having a rectilinear guide means for rotating the bolt means, a self-adjusting torque support means cooperating with the bolt means comprising a lever means non-rotatably connected with the bolt means and two oil pressure actuated pistons mutually engaging opposite sides of the lever means.
Claim 2
Dependent Claim
115 words
A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder head are actuated in unison by a traverse means displaced by a rocker arm means, and in which the traverse means is pivotally constructed, comprising a bolt means operable to guide the traverse means rectilinearly is rotatably arranged at the cylinder head transversely to the connecting line of the valves, the traverse means having a rectilinear guide means for rotating the bolt means, a self-adjusting torque support means cooperating with the bolt means comprising a lever means non-rotatably connected with the bolt means and two oil pressure actuated pistons mutually engaging opposite sides of the lever means.
Claim 3
Dependent Claim
28 words
A valve control according to claim 1, wherein the cylinder spaces of the pistons are in communication with at least one throttling place by way of a channel.
Claim 4
Dependent Claim
32 words
A valve control according to claim 2, wherein a means for eliminating clearance in the valve control is operatively interconnected between a cam shaft initiating the valve actuation and the traverse means.
Claim 5
Dependent Claim
26 words
A valve control in accordance with claim 1, further comprising means in the cylinder head for applying the oil pressure to the oil pressure actuated pistons.
Claim 6
Dependent Claim
25 words
A valve control according to claim 2, further comprising means in the cylinder head for applying a force to actuate the self-adjusting torque support means.
Claim 7
Dependent Claim
156 words
A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder head are actuated in unison by a traverse means displaced by a rocker arm means, and in which the traverse means is pivotally constructed, characterized in that a bolt means operable to guide the traverse means rectilinearly is rotatably arranged at the cylinder head transversely to the connecting line of the valves, in that the bolt means is rotatable by the traverse means by way of a rectilinear guide means, in that the bolt means cooperates with a self-adjusting torque support means, in that a means for eliminating clearance in the valve control is operatively interconnected between a cam shaft initiating the valve actuation and the traverse means and in that a lever means non-rotatably connected with the bolt means and two oil pressure actuated pistons engaging mutually oppositely at the lever means form the torque support means.
Claim 8
Dependent Claim
156 words
A valve control for a reciprocating piston internal combustion engine in which at least two valves per cylinder head are actuated in unison by a traverse means displaced by a rocker arm means, and in which the traverse means is pivotally constructed, characterized in that a bolt means operable to guide the traverse means rectilinearly is rotatably arranged at the cylinder head transversely to the connecting line of the valves, in that the bolt means is rotatable by the traverse means by way of a rectilinear guide means, in that the bolt means cooperates with a self-adjusting torque support means, in that a means for eliminating clearance in the valve control is operatively interconnected between a cam shaft initiating the valve actuation and the traverse means and in that a lever means non-rotatably connected with the bolt means and two oil pressure actuated pistons engaging mutually oppositely at the lever means form the torque support 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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |