Pneumatic vane pumps with oil separation

Details Pneumatic vane pumps with oil separation Pneumatic vane pumps with oil separation

1988-03-28

1989-01-24

Vrablik, John J.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working and working fluids intermix in working chamber

418DIG1, 418 86, 55248, F04C 2902

Patent

active

047998695

ABSTRACT:
An intermittently operating pneumatic vane pump has a cylindrical seat for its rotor constituted by a ring of porous sintered material housed in a container. The lubricating oil is collected in an interspace between the ring and the container when the pump is operating and returns to the pump when the pump is stopped, to keep the ring of the seat impregnated.

REFERENCES:
patent: 3217977 (1965-11-01), Burger
patent: 3314599 (1967-04-01), Rollinger et al.
patent: 3669579 (1972-06-01), Carter
patent: 4441871 (1984-04-01), Boller

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