Engine cylinder cutout system and control therefor

Details Engine cylinder cutout system and control therefor Engine cylinder cutout system and control therefor

F - Mech Eng,Light,Heat,Weapons

01

L

123/183

F01L 13/08 (2006.01) F01L 13/00 (2006.01) F02D 17/02 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1133342

ABSTRACT OF THE DISCLOSURE A novel engine cylinder cutout system for internal combustion engines, e.g., gasoline engines, or diesel engines is provided herein. The system may be operated either by fluids, e.g., pneumatic or hydraulic, or mechanically. The system includes (a) a plurality of uncoupling devices for selectively coupling or uncoupling associated valve operators from respective driven members, the cutout devices selectively operable for normal operation enabling the normal cycle of operation of the valve operators and for cutout operation interrupting the normal cycle in any phase of its operation, the plurality of cutout devices being equal in number to the number of cylinders or valves in the engine; (b) shifting mechanism for selectively operating the cutout devices to provide varia- tion of valve operation from normal cycles, allowing the valves to be opened or closed as required, and cutout operation, uncoupling selective one or ones of the valve operators so that selected exhaust valves are open while associated selected intake valves are closed; and (c) reten- tive control means responsive to the status of vehicle operating para- meters for randomly initiating operation of shifting mechanism associated with each such uncoupling device for random initial activation thereof, thereby selectively cutting out one or more cylinders in the engine a sub- stantially even average amount of time. The control means thus assures even cutout of the cylinders during different sequences of operation so that engine wear is reduced, and any such wear is even.

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