Lubricating system for pump and control valve therefor

Details Lubricating system for pump and control valve therefor Lubricating system for pump and control valve therefor

F - Mech Eng,Light,Heat,Weapons

04

C

230/116, 230/89

F04C 29/02 (2006.01)

Patent

CA 1113059

LUBRICATING SYSTEM FOR PUMP AND CONTROL VALVE THEREFOR ABSTRACT OF DISCLOSURE: A vane air pump is used to selectively supply air under pressure to a tank or evacuate air from the tank. A control valve mounted on the pump has a housing with an air inlet area and an air outlet area. A spool rotatable in the housing to a first position connects the pump and valve passages to supply air under pressure to the tank and a second position connects the pump and valve passages to evacuate air from the tank. A lubricating apparatus having a reservoir for storing oil is connected to the air inlet area of the control valve to draw oil into the control valve and the pump to lubricate the spool of the control valve and bearings and vanes of the pump. An adjustable metering valve controls the flow of oil into the control valve and pump.

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