Actuator for a turbocharger

Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine


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251 614, F02B 3718, F16K 31365




An actuator for a turbocharger includes a hollow body member having a open top. A flexible elastic diaphragm extends across and is sealingly secured to the open top of the hollow body member which sealingly secures it thereagainst. A cap covers the open top and has a recessed surface formed therein directed toward the open top. The cap is sealingly secured against the body member so as to define a pressurizable cavity in the hollow between the cap and the diaphragm, and the cap having a rigid stem protruding therefrom with a fluid passage extending through the stem and into fluid communication with the cavity. An actuator rod is axially movable by the diaphragm in response to a predetermined pressure in the cavity.

patent: 2715009 (1955-08-01), Beekley
patent: 3048274 (1962-08-01), Lundeen
patent: 3195854 (1965-07-01), Pflieger
patent: 4403538 (1983-09-01), Rise
patent: 4655043 (1987-04-01), McInerney


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Profile ID: LFUS-PAI-O-950005

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