Internal combustion engine

Details Internal combustion engine Internal combustion engine

1979-10-31

1982-01-05

Lall, P. S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123568, F02D 1702

Patent

active

043088317

ABSTRACT:
An internal combustion engine is disclosed which comprises a plurality of cylinders split into first and second groups, an intake passage provided therein with a throttle valve and divided downstream of the throttle valve into first and second branches, the first branch leading to the first group of cylinders, the second branch leading to the second group of cylinders, an EGR passage bypassing the second group of cylinders, an EGR valve provided in the EGR passage for allowing re-introduction of exhaust gases through the EGR passage into the second group of cylinders when the engine is under low load conditions, a check valve provided in the second branch of the intake passage, and the check valve adapted to allow air to flow from the intake passage into the second branch but to prevent exhaust gases from flowing from the second branch into the intake passage.

REFERENCES:
patent: 4171689 (1979-10-01), Ehelm
patent: 4192278 (1980-03-01), Iizuka et al.
patent: 4201180 (1980-05-01), Iizuka
patent: 4224920 (1980-09-01), Sugasawa et al.
patent: 4231338 (1980-11-01), Sugasawa et al.

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