Liquid-cooled piston

Details Liquid-cooled piston Liquid-cooled piston

1998-01-27

1999-04-06

Ryznic, John E.

Expansible chamber devices

Piston

With ported chamber in piston part for circulating heat...

123 4135, F01B 3108, F01P 104

Patent

active

058904166

ABSTRACT:
A liquid-cooled internal combustion engine piston (10) comprises on the one hand at least one annular segment-shaped coolant duct (12a, 12b) formed within an upper piston member and having openings (16a, 16b, 18) at sites symmetrical relative to the gudgeon pin axis (14) for supplying and discharging oil. On the other hand, an approximately radial communicating duct (20) enclosed in its course toward the crank chamber and connected to the annular segmented ducts (12a, 12b) in the region of the openings (16a, 16b, 18) is provided.

REFERENCES:
patent: 1547687 (1925-07-01), Rohwer
patent: 4530312 (1985-07-01), Kanda et al.
patent: 4581983 (1986-04-01), Moebus
patent: 4587932 (1986-05-01), Moebus
patent: 5730090 (1998-03-01), Kling et al.

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