Oil sealed single stage vacuum pump

Details Oil sealed single stage vacuum pump Oil sealed single stage vacuum pump

1976-07-19

1978-10-17

Croyle, Carlton R.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working and working fluids intermix in working chamber

F04C 2702

Patent

active

041206215

ABSTRACT:
In a vacuum pump, of the type being a single stage operative pump, a stator housing is provided and having rotatively mounted therein an eccentrically disposed rotor, which rotor is revolved by means of a motor, with the eccentric mounting of the rotor providing a point of contiguity between the rotor and the stator housing; a slot is provided approximate the location of the point of contiguity between the rotor and stator, and an oil reservoir supplies a quantity of oil to and through the slot to form a seal at this point of contiguity between the pump rotor and stator housing.

REFERENCES:
patent: 2077394 (1937-04-01), Buenger
patent: 2816702 (1957-12-01), Woodcock
patent: 3525578 (1970-08-01), Le Blanc, Jr.
patent: 3838950 (1974-10-01), Andriulis

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