Internal-combustion engines – Cooling – Liquid coolants other than water and water treatment
Patent
1989-04-12
1990-05-22
Kamen, Noah P.
Internal-combustion engines
Cooling
Liquid coolants other than water and water treatment
123 4108, 123 4129, 123 4133, F01P 302
Patent
active
049268007
ABSTRACT:
An oil-cooled internal combustion engine comprises an oil pan, containing a common oil sump for a lubricating oil circuit and a cooling oil circuit. Each oil circuit contains a separate oil pump. The cooling oil circuit is directly connected to the sump and a lubricating oil circuit, comprising an oil filter and an oil cooler, is connected to the cooling oil circuit. A secondary cooling oil circuit branches off from the lubricating oil circuit dowstream of the oil cooler, and services engine portions which are subjected to particularly high temperatures, requiring increased cooling.
REFERENCES:
patent: 4364339 (1982-12-01), Fricker et al.
patent: 4708095 (1987-11-01), Luterek
patent: 4834029 (1989-05-01), Wahnschaffe et al.
Kamen Noah P.
Steyr-Daimler-Puch
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