Speed to pressure transducer
    1.
    发明授权
    Speed to pressure transducer 失效
    压力传感器

    公开(公告)号:US3625627A

    公开(公告)日:1971-12-07

    申请号:US3625627D

    申请日:1970-08-03

    Applicant: BENDIX CORP

    CPC classification number: G01P3/20 G05D13/00

    Abstract: A casing slidably carries a rotatable shaft and is provided with a fluid inlet connected to a source of pressurized fluid. A fluid pump or impeller connected to the shaft and actuated thereby receives fluid from the inlet and discharges the same at a higher pressure as a function of the rotational speed of the shaft to a passage having a fixed restriction and a variable area valve in series flow therein and connecting the pump inlet and outlet. A centrifugal weight rotated by the shaft is connected to the variable area valve to load the same in a closing direction in opposition to a force derived from the fluid pressure differential generated across the valve member. The fluid pressure differential across the valve member is vented to a pressure differential responsive member which provides a control force or position output as a function of the speed of rotation of the shaft. The slidable bearing surfaces supporting the shaft in the casing are vented to the passage upstream from the fixed restriction to provide fluid lubrication the pressure of which is proportional to shaft speed.

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