Lubrication mechanism for piston pin and snap ring

Details Lubrication mechanism for piston pin and snap ring Lubrication mechanism for piston pin and snap ring

1987-06-11

1988-11-22

Garrett, Robert E.

Expansible chamber devices

With lubricating means

Piston has lubricant retaining or conducting means

92160, F01R 3110

Patent

active

047857200

ABSTRACT:
A piston boss is formed with an oil inlet hole for collecting oil flowing downward along a piston and allowing it to flow toward a snap ring and an end of a ceramic piston pin in contact with the snap ring. The oil having lubricated the snap ring and the end of the piston pin is collected by an oil outlet hole formed in the piston boss and allowed to flow downward therethrough.

REFERENCES:
patent: 1430928 (1922-10-01), Spencer
patent: 1437585 (1922-12-01), Douglas et al.
patent: 1511135 (1924-10-01), Moser
patent: 1916978 (1933-07-01), Harper, Jr.
patent: 3494262 (1970-02-01), Holcombe
patent: 3515035 (1970-06-01), Cuddon-Fletcher
patent: 4056044 (1977-11-01), Kamman et al.

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