Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Patent
1998-01-30
2000-11-28
Denion, Thomas
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
418133, 418149, 4182061, 60477, 60481, F04C 200
Patent
active
061527157
ABSTRACT:
A pump assembly comprises a hydraulic fluid pump having a housing assembled from a plurality of housing components that are pinned together rather than being clamped together by bolts. The pump is disposed in a cavity in a valve block so that the outlet fluid pressure from the pump is applied axially to the housing components to create a greater external axial force on the pump components than the internal axial force and thereby maintain the housing components in tight, sealing relation without the need for clamping bolts or other clamping means.
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patent: 5577899 (1996-11-01), Phillips
Ewald Dennis G.
Kaempe Staffan I.
Denion Thomas
Trieu Thai-Ba
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