Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1992-03-05
1993-03-30
Cross, E. Rollins
Internal-combustion engines
Lubricators
Crankcase, pressure control
184 63, F01M 500
Patent
active
051974240
ABSTRACT:
A pre-lubrication system (14) for an internal combustion engines (10) having a pressurized lubrication system (12) is provided which serves to rapidly pre-lubricate internal engine components during an engine ignition sequence. The assembly (14) preferably includes a vessel (16) adapted to hold a charge of lubricant under positive pressure, together with a valve assembly (19) and conduit (54) coupling the vessel (16) and the engine lubrication system (12). The valve assembly (19) preferably includes a solenoid operated valve (58) and a parallel check valve (60) which cooperatively permit filling of the vessel (16) with lubricant during normal engine operation, while maintaining a pressurized charge of lubricant within the vessel (16) when the engine (10) is stopped. The solenoid valve (58) is preferably wired (80, 82) for selective and/or automatic valve opening during an ignition sequence. Opening of the valve (58) permits rapid flow of the lubricant charge from the vessel (16) into the pressurized lubrication system (12) of engine (10).
REFERENCES:
patent: 2747564 (1956-05-01), Wehling
patent: 2755787 (1956-07-01), Butler
patent: 3583525 (1971-06-01), Holcomb
patent: 4061204 (1977-12-01), Kautz, Jr.
patent: 4094293 (1978-06-01), Evans
patent: 5069177 (1991-12-01), Dokonal
Cross E. Rollins
Solis Erick
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