Internal-combustion engine

Details Internal-combustion engine Internal-combustion engine

1991-03-25

1993-05-11

Kamen, Noah P.

Internal-combustion engines

Cooling

Devices for cooling liquid by air flow

123 4182R, F01P 710

Patent

active

052091899

ABSTRACT:
A reciprocating internal combustion engine whose thermally loaded components are cooled by a cooling liquid. The internal combustion engine has at least one cylinder with piston and a cylinder head associated therewith having an exhaust duct, as well as at least one liquid/air heat exchanger, which receives cooling-air from a cooling fan.
The cooling fan (2) has a diffuser (3) and the liquid/air heat exchanger (1) is adapted to operate at an elevated cooling-air pressure of the cooling fan (2). The pressure of the cooling-liquid system and/or the composition of the cooling liquid are selected such that the boiling point of the cooling liquid lies between 110.degree. and 130.degree. C., preferably around 125.degree. C. The exhaust duct (5) in the cylinder head (4) is substantially thermally isolated from nearby regions of the cylinder head.

REFERENCES:
patent: 4131093 (1978-12-01), Mansfield
patent: 4508066 (1985-04-01), Hartsock
patent: 4846258 (1989-07-01), Charles

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