Method of operating a piston-type internal combustion engine

Details Method of operating a piston-type internal combustion engine Method of operating a piston-type internal combustion engine

1998-05-21

1999-11-09

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 4144, F01P 302

Patent

active

059793945

ABSTRACT:
In a method of operating a piston-type internal combustion engine including cylinders with gas exchange valves of which at least some are closed when the engine is operated in an engine-driven state above a predetermined engine speed and the engine includes an electrically operated coolant circulating pump wherein the coolant circulating pump speed is controlled depending on the number of cylinders shut down during operation in the engine driven state.

REFERENCES:
patent: 5454356 (1995-10-01), Kawamura

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