Sealing means for a high pressure axial piston pump

Details Sealing means for a high pressure axial piston pump Sealing means for a high pressure axial piston pump

1985-03-25

1989-05-30

Garrett, Robert E.

Expansible chamber devices

Passage in cylinder for application of separate fluid to...

92 87, 277203, 277 53, 277 24, 277 71, 277 59, F01S 3100

Patent

active

048339768

ABSTRACT:
The axial piston pump is provided with two annular seals mounted in the housing and sealingly engaging the piston to define a sealing fluid zone therebetween. An annular ring is provided between the seals to control the flow of sealing fluid through the fluid zone. This ring includes an internal helical flush duct for guiding the sealing fluid helically about the piston from one end of the ring to the other end of the ring.

REFERENCES:
patent: 3625523 (1971-12-01), Gardner
patent: 3847453 (1974-11-01), Herbert
patent: 3922115 (1975-11-01), Coe et al.
patent: 3943717 (1976-03-01), Schexnayder
patent: 4305592 (1981-12-01), Peterson
patent: 4413829 (1953-11-01), Pietsch

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