Supercharged engine

Details Supercharged engine Supercharged engine

1983-07-13

1985-12-17

Lazarus, Ronald H.

Internal-combustion engines

Four-cycle

Crankcase compression of air or combustible mixture to be...

123318, F02B 3314, F02B 7502

Patent

active

045586713

ABSTRACT:
A four-stroke internal combustion engine is supercharged by admitting fuel-air mixture into the engine crankcase and compressing the mixture on the down stroke of the piston. The engine cylinder, and the piston disposed therewithin, are of stepped configuration defining a combustion chamber above a smaller, top piston portion, and an annular chamber above a larger, lower piston portion. Compressed mixture from the crankcase is admitted to a pressure reservoir for supply to the combustion chamber via an intake valve and a throttle valve. The crankcase is either supplied with fuel-air mixture from the annular chamber, or supplies fuel-air mixture to the reservoir via the annular chamber, so as to provide two stages of compression.

REFERENCES:
patent: 931976 (1909-08-01), Turner
patent: 1018276 (1912-02-01), Smith
patent: 1311148 (1919-07-01), Moore
patent: 1452011 (1923-04-01), Watton
patent: 3859968 (1975-01-01), Stinebaugh
patent: 4459945 (1984-07-01), Chatfield
patent: 4481909 (1984-11-01), Takada

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