Liquid-cooled piston for internal combustion engines

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

1981-03-04

1983-01-18

Cuchlinski, Jr., William A.

Internal-combustion engines

Cooling

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

92186, 92223, 123193P, F01P 310

Patent

active

043686974

ABSTRACT:
In a composite, liquid-cooled piston, the upper part consists of ferrous material and is joined by conventional means to the lower part. A ring is provided on the underside of the upper part which bears on the corresponding surface of the lower part and constitutes a radially inner boundary of a cooling passage which is disposed on the upper part and open to the interfacial plane. To improve the cooling action in the hottest regions of the upper part and to achieve a more uniform distribution of temperature in the ring carrying over of the upper part of piston, the upper portion of the wall defining the cooling passage is coated with a material having a high thermal conductivity.

REFERENCES:
patent: 2772933 (1956-12-01), Nichols
patent: 2833668 (1958-05-01), Dailey et al.
patent: 4083292 (1978-04-01), Goloff
patent: 4175502 (1979-11-01), Moebus

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