Multi-cylinder internal combustion engine

Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters

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123568, F02D 1702

Patent

active

043134068

ABSTRACT:
An internal combustion engine is disclosed which includes a plurality of cylinders split into first and second groups, and an intake passage provided with a throttle valve and bifurcated downstream of the throttle valve into two branches, one communicated with the first group of cylinders and the other communicated through a stop valve with the second group of cylinders. The second group of cylinders are bypassed by an EGR passage provided therein with an EGR valve. Control means is provided for causing the air valve to open a predetermined time after the EGR valve closes when the engine operation is shifted from its low load condition to a high load condition.

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patent: 4064861 (1977-12-01), Schulz
patent: 4069803 (1978-01-01), Cataldo
patent: 4129109 (1978-12-01), Matsumoto
patent: 4186715 (1980-02-01), Iizuka et al.
patent: 4192278 (1980-03-01), Iizuka et al.
patent: 4231338 (1980-11-01), Sugasawa et al.
patent: 4242997 (1981-01-01), Kohama et al.
patent: 4249374 (1981-02-01), Sugasawa et al.

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