Engine brake
Patent 4333430 Issued on June 8, 1982. Estimated Expiration Date: 
June 15, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 15, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1797105 3403663 3786792 Valve control mechanism Braking device for four-stroke cycle reciprocating piston internal combustion engine Patent #: 4174687 InventorApplicationNo. 06/048988 filed on 06/15/1979US Classes:123/321, Valve timing altering means (e.g., axially sliding cam shaft)123/323, Exhaust throttling or blocking123/90.16Cam-to-valve relationshipExaminersPrimary: Argenbright, Tony M.International ClassF01L 13/06 (20060101)AbstractAn engine retarder brake for operating a valve in the combustion chamber of an internal combustion engine near the end of the exhaust stroke to thereby discharge compressed air and cause the engine to operate as a brake for the vehicle.Field of SearchResponsive to deceleration mode (e.g., engine acting as a brake)Valve timing altering means (e.g., axially sliding cam shaft) Electrical means adapted to alter valve timing Exhaust throttling or blocking By changing valve lift By changing valve timing Hydraulic system With manifold and distributor Cam-to-valve relationship | |
