Fluid delivery device

Details Fluid delivery device Fluid delivery device

2006-07-11

2006-07-11

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With mechanical sealing

Axially movable end wall or end wall portion

C418S075000, C418S104000, C418S125000, C418S171000

Reexamination Certificate

active

07074025

ABSTRACT:
A fluid delivery device, such as a geared machine or a gear pump, with a housing having at least one supply chamber and a displacement unit arranged within the supply chamber. The displacement unit serves to supply a medium to at least one pressure chamber provided within the housing. A pressure plate is arranged between the pressure chamber and the housing, and the pressure plate is uncoupled from the housing by at least one spacer element that is arranged between the pressure plate and the housing to provide a fluid delivery device that operates more quietly than conventional fluid delivery devices.

REFERENCES:
patent: 3416459 (1968-12-01), Reimer et al.
patent: 3490383 (1970-01-01), Parrett
patent: 3718411 (1973-02-01), Pollman
patent: 4253808 (1981-03-01), White
patent: 6050796 (2000-04-01), Wong et al.
patent: 6425747 (2002-07-01), Buchmuller et al.
patent: 6481990 (2002-11-01), Wong et al.

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