Device for sealing the penetration of drive shaft/housing in rot

Details Device for sealing the penetration of drive shaft/housing in rot Device for sealing the penetration of drive shaft/housing in rot

1981-08-18

1983-08-16

Vrablik, John J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Annular groove or recess completely encircles rotation axis

418 77, 418102, 418170, 277135, F04C 210, F04C 1500, F16J 1540

Patent

active

043988733

ABSTRACT:
A liquid pump has a drive shaft which extends through a housing. The high pressure side of the pump is connected through a radial channel with an annular channel formed in the housing surrounding the drive shaft. High pressure liquid in the annular channel prevents the ingesting of air by the pump.

REFERENCES:
patent: 845114 (1907-02-01), Palmer
patent: 879484 (1908-02-01), Morterud
patent: 1079561 (1913-11-01), Kinney
patent: 1379248 (1921-05-01), Carrey
patent: 1676103 (1928-07-01), Mason
patent: 1863335 (1932-06-01), Hill
patent: 2064703 (1936-12-01), Van De Graaff
patent: 2650116 (1953-08-01), Cuny
patent: 2948952 (1958-08-01), Wakeman
patent: 3565550 (1971-02-01), Bellmer

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