Accumulator

Details Accumulator Accumulator

2010-04-26

2010-10-12

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

C138S030000, C220S721000, C303S087000

Reexamination Certificate

active

07810522

ABSTRACT:
To prevent abnormal deformation of a bellows, an accumulator has a regulation mechanism for reducing a pressure difference generated when liquid sealed in a liquid chamber and charged gas are thermally expanded at a zero-down time, a seal plate is arranged in an inner peripheral side of a bellows floating end, an elastically deformable thin plate is bonded to the seal plate, an outer peripheral portion of the thin plate is bonded to the bellows floating end, the seal plate is away from a seal at a time of a steady operation, the seal plate contacts with the seal at a zero-down time, and the thin plate is elastically deformed to make liquid pressure balance with gas pressure while the seal plate being kept in contact with the seal when the liquid and gas are thermally expanded.

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