Two stroke diesel engine

Details Two stroke diesel engine Two stroke diesel engine

1991-11-26

1993-03-23

Cross, E. Rollins

Internal-combustion engines

Precombustion and main combustion chambers in series

Two-cycle

123289, 123 65VD, F02B 1904

Patent

active

051954869

ABSTRACT:
A two stroke diesel engine having a cavity in the cylinder head facing the combustion chamber, an intake valve and exhaust valve, a fuel injector, and a projection formed on the piston head. The intake valves and fuel injector are pointing toward the cavity while the exhaust valve is pointing toward the combustion chamber. The projection enters the cavity in the vicinity of the top dead center of the piston movement and separates it from the combustion chamber. Due to the loop effect of fresh gas flowing from the intake valve into the combustion chamber via the cavity, burnt gas is swept out of the chamber effectively, and due to the energy of combustion of fuel and air which ignited in the closed cavity, combustion rapidly spreads throughout the combustion chamber as the piston descends so that air is utilized efficiently.

REFERENCES:
patent: 4070999 (1978-01-01), Matsuno
patent: 4146004 (1979-03-01), Dubois
patent: 4258680 (1981-03-01), Eckert
patent: 4267806 (1981-05-01), Kanda et al.
patent: 4616605 (1986-10-01), Kline
patent: 4732117 (1988-03-01), Tanahashi et al.
patent: 5009207 (1991-04-01), Merritt

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