公开(公告)号：US4443164A

公开(公告)日：1984-04-17

申请号：US358305

申请日：1982-03-15

Applicant: Lowell R. Bavin

Inventor： Lowell R. Bavin

IPC: F01C13/02 ,  F01C20/08 ,  F01C21/18 ,  F01C21/12 ,  F04C15/02

CPC classification number: F01C21/186 ,  F01C13/02 ,  F01C20/08 ,  F01C21/18 ,  Y10S415/904 ,  Y10T137/108

Abstract: The present invention comprises a combined speed sensor and control valve for a rotary fluid motor such as a rotary vane air motor. Weights are pivotally attached to the opposite sides of the rotating output shaft of the air motor and are spring biased into engagement with an annular valve disc member positioned over the air inlet. Upon excessive speed of the shaft, the weights swing from engagement with the valve disc member and release the member. Air flow and air pressure within the air inlet passage cause the disc member to translate axially along the rotary shaft and close the air inlet. The air motor must be disassembled and the overspeed control reset prior to continued operation of the air motor.

Abstract translation: 本发明包括用于诸如旋转叶片气动马达的旋转流体马达的组合速度传感器和控制阀。 重量可枢转地附接到空气马达的旋转输出轴的相对侧，并且被弹簧偏置成与定位在空气入口上方的环形阀盘构件接合。 当轴的速度过大时，重物从与阀盘构件的接合摆动并释放构件。 空气入口通道内的空气流和空气压力使得盘构件沿着旋转轴轴向平移并关闭进气口。 在气动马达继续运行之前，必须拆卸空气马达并进行超速控制复位。