Expansible chamber devices – Piston – With ported chamber in piston part for circulating heat...
Patent
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.
Martin Edgar
Thieme Stephan
Alcan Deutschland GmbH
Ryznic John E.
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