Belleville washer spring type pulsation damper, noise attenuator

Details Belleville washer spring type pulsation damper, noise attenuator Belleville washer spring type pulsation damper, noise attenuator

1991-08-23

1993-05-11

Gellner, Michael L.

Acoustics

Sound-modifying means

Mechanical vibration attenuator

181226, 181233, 138 30, 138 31, F16F 1500

Patent

active

052103820

ABSTRACT:
A pulsation damper and noise attenuator assembly comprising a housing having an inlet port and an outlet port fluidly connecting the interior of the housing to the flow path of the fluid flow system. A base is mounted to the housing and comprises a vent fluidly connecting the interior of the housing to the atmosphere. A piston seated within the housing creates a fluid tight seal between the fluid flow path and the vented atmospheric pressure. Belleville springs bias the piston in a forward direction. The piston absorbs the full force of the hydraulic shock waves or pulsation within a high pressure fluid flow system as the assembly is mounted directly within the flow path of the fluid. The shock wave is exposed across the full face of the piston and dampened prior to the fluid continuing along the flow path.

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patent: 3422853 (1969-01-01), Schmid
patent: 3633627 (1972-01-01), Perrolt
patent: 4667699 (1987-05-01), Loliger

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