Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means
Patent
1975-12-29
1978-02-28
Cohen, Irwin C.
Expansible chamber devices
With lubricating means
Piston has lubricant retaining or conducting means
92158, 92223, F16J 102, F16J 108
Patent
active
040759342
ABSTRACT:
A piston for internal combustion engines, preferably made from aluminum alloy, has machined, oil-dragging grooves formed on the periphery of the piston skirt and concave transitions with a sawtoothlike profile with an obtuse profile angle. The piston skirt is provided with an electrodeposited hard iron layer having a thickness of 1-30 .mu.m and contains 0.5-6% metal-oxy compounds incorporated therein.
REFERENCES:
patent: 1302231 (1919-04-01), Shehady
patent: 1386766 (1921-08-01), Centervall
patent: 1464612 (1923-08-01), Madler
patent: 1717750 (1929-06-01), Wills
patent: 1854271 (1932-04-01), Michel
patent: 2410405 (1946-11-01), Cornelius
Forschungsberichte.
Bauer Hermann
Hofmann Heinz
Kopp Karl
VON Ey Volker
Wacker Erich
Cohen Irwin C.
Karl Schmidt GmbH
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