| 摘要 |
A pre-oiler assembly includes a hollow body portion with a hollow float body assembly secured to the lower end thereof. A solenoid operated three-way air valve has one port communicating with the interior of the hollow body, a second port connected to a source of air pressure, and a third port connected to the engine to vent air from the hollow body into the engine. The deactivated position of the air valve connects the first and third ports so as to vent air from an oil chamber within the hollow body, to the engine. The activated position of the air valve connects the first and second ports, such that air under pressure enters the oil chamber to force oil from the hollow body. The float body assembly at the lower end of the hollow body portion has an oil line extending therefrom to the engine to be pre-oiled. A normally closed solenoid operated oil valve is interposed in the oil line, and permits oil passage through the oil line to the engine when activated to the open position. An oil inlet connecting the oil chamber to a source of oil includes a one-way check valve to prevent back flow from the oil chamber. A key switch is provided for actuating the solenoids when it is desired to pre-oil the engine.
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