Starting decompression device for a four cycle engine

Details Starting decompression device for a four cycle engine Starting decompression device for a four cycle engine

1980-06-10

1982-07-20

Lall, P. S.

Internal-combustion engines

Starting device

Compression relieving type

123 9016, F01L 1308

Patent

active

043400175

ABSTRACT:
There is disclosed a starting decompression device for a four-cycle engine for forcedly open an exhaust valve to decompress a combustion chamber. The starting decompression device includes an interlocking means operatively connected to the exhaust valve, a decompression cam member opposed to the interlocking means, and a return spring for urging the cam member towards an inoperative position at which the exhaust valve is closed. In the device, the cam member is automatically returned, at a suitable time during cranking, to close the exhaust valve, thereby mitigating the initial load of cranking and positively starting the engine.

REFERENCES:
patent: 2758580 (1956-08-01), Balzer
patent: 3381676 (1968-05-01), Campen
patent: 3395689 (1968-08-01), Kruse
patent: 3418992 (1968-12-01), Anderson et al.
patent: 3897768 (1975-08-01), Thiel
patent: 3901199 (1975-08-01), Smith
patent: 4184468 (1980-01-01), Freyn

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