Seals for housing of a rotary actuator

Expansible chamber devices – Oscillating working member or cylinder therefor – Oscillatory shaft with radially extending vane

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Details

92121, F01C 900

Patent

active

051233339

ABSTRACT:
The present invention relates to a fluid operated device having a stator and a rotating vane mounted on a shaft enclosed in a cylindrical body with head members at each end of the housing. The pressure of the fluid is different on each side of the vane for such devices, and an elastomeric seal is provided on the vane to prevent leakage of fluid from one side of the vane to the other. The present invention provides for a metal to metal seal between the cylindrical body and the head members such that the elastomeric seal on the vane will seal against metal surfaces as it sweeps along the union of these two members.

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