Variable displacement engine

Details Variable displacement engine Variable displacement engine

1983-01-10

1985-01-22

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 9015, 123580, F02D 1306

Patent

active

044945035

ABSTRACT:
A multiple cylinder engine of the type which is capable of controlling the number of operating cylinders to operate the engine in either in full or partial displacement mode, wherein the operation is switched smoothly between the full displacement and partial displacement in a simplified manner by detection of the pressure in the intake passage of the engine, putting the engine into full displacement mode by a control pressure when the engine is in cold state preferentially to the pressure in the intake passage, thereby shortening the time period of warming up to achieve smooth operation of the engine quickly.

REFERENCES:
patent: 2623617 (1952-12-01), Snyder et al.
patent: 4144863 (1979-03-01), Abdoo
patent: 4184470 (1980-06-01), Iizuka
patent: 4201180 (1980-05-01), Iizuka
patent: 4227505 (1980-10-01), Larson et al.
patent: 4274382 (1981-06-01), Sugasawa et al.
patent: 4296719 (1981-10-01), Takahashi et al.
patent: 4313406 (1982-02-01), Iizuka et al.
patent: 4331113 (1982-05-01), Tadokoro et al.

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