Liquid-cooled piston for internal combustion engines

Details Liquid-cooled piston for internal combustion engines Liquid-cooled piston for internal combustion engines

1997-05-08

1998-12-08

Kwon, John T.

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

F01P 306

Patent

active

058456112

ABSTRACT:
In a liquid cooled piston for internal combustion engines having a cooling oil supply and at least one liquid passage which is formed in a top part of the piston bounded by a piston head, the liquid passage is inclined with respect to the piston head and has at least one inlet opening formed as a collection funnel leading to the highest point of the passage for receiving cooling oil and, in the region of the lowest point of the passage an outlet opening for the lubrication of a piston pin bearing disposed therebelow. The passage further includes a diffuser-shaped area widening in the flow direction of the cooling oil through the passage.

REFERENCES:
patent: 4331107 (1982-05-01), Bruni
patent: 4530312 (1985-07-01), Kanda et al.
patent: 4587932 (1986-05-01), Moebus
patent: 5081959 (1992-01-01), Akiyama

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