Engine pre-oil device

Details Engine pre-oil device Engine pre-oil device

1995-05-12

1995-12-12

Yuen, Henry C.

Internal-combustion engines

Lubricators

Crankcase, pressure control

184 63, F01M 500

Patent

active

054740428

ABSTRACT:
A pre-oil device which uses a positive release catch/latch to allow a spring loaded piston within a resevor chamber to provide oil to an engine before the engine oil pump reaches operational levels. The solenoid which is energized to initiate the pre-oil process incorporates a slip mounting of the core to the positive release catch/latch to enhance the performance of the release and conserve energy. The device also includes an air tight mounting allowing the user to introduce pressurized air to augment the spring loading of the piston during adverse conditions. A secondary piston may be mounted within the main piston. The secondary piston recedes into the main piston under high oil pressure but applies pressure to the oil system to compensate for low pressure of the engine oil system during reduction of speed of the engine and reduced engine oil pump performance.

REFERENCES:
patent: 2867203 (1959-01-01), Easton et al.
patent: 3425404 (1969-02-01), Lamkin
patent: 4112910 (1978-09-01), Percy
patent: 4377374 (1983-03-01), Taylor
patent: 4825826 (1989-05-01), Andres

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