Internal-combustion engines – Lubricators – Crankcase – pressure control
Reexamination Certificate
2005-12-27
2005-12-27
Lo, Weilun (Department: 3747)
Internal-combustion engines
Lubricators
Crankcase, pressure control
C123S197400, C184S006500, C184S011100
Reexamination Certificate
active
06978757
ABSTRACT:
A lubrication structure for splash lubrication in an engine includes an oil collector formed as a depression in the outer peripheral surface of the crank pin and an oil groove provided on the big-end of the connecting rod. The oil collector is formed approximately at the center, in an axial direction, of the crank pin. The position of the oil collector is chosen so as to be displaced from an explosive force in an expansion cycle of the engine. The oil groove is provided on the big-end of the connecting rod, and has a first end and a second end. The first end is open in the inner peripheral surface at the center thereof in an axial direction, and the second end is open into the crank case. The oil collector receives oil stored in the crank case and the oil is transferred to the oil groove.
REFERENCES:
patent: 2050723 (1936-08-01), McMillin
patent: 2678702 (1954-05-01), O'Harrow
patent: 5265700 (1993-11-01), Santi
patent: 8-284944 (1996-11-01), None
Fuji Jukogyo Kabushiki Kaisha
Lo Weilun
Smith Gambrell & Russell
LandOfFree
Lubrication structure in engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lubrication structure in engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubrication structure in engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3473411