Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – Valve regulated non-working fluid
Patent
1979-12-06
1981-01-20
Vrablik, John J.
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
Valve regulated non-working fluid
418100, 137246, 184 616, 184 55A, 184 85, F04C 2902, F04C 2908, F16K 522
Patent
active
042459680
ABSTRACT:
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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Van Dale Liquid Manure Spreaders, Form No. 1-1346, Van Dale, Box 337, Long Lake, Minn.
Vacuum Manure Spreaders-Feed Easy, Fleming Manufacturing Co., Box 337, Long Lake, Minn.
Operator's Manual of Vacuum Liquid Manure Spreaders, Van Dale, pp. 3 & 4, Van Dale, Box 337, Long Lake, Minn.
Buschbom Floyd E.
Wirsbinski James L.
Veda, Inc.
Vrablik John J.
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