Hydraulic valve control device,申请号US19820390546-传众专利搜索

Hydraulic valve control device

申请公布号：US4546787(A)

申请号：US19820390546

申请日期：1982.06.21

申请公布日期：1985.10.15

申请人：

CLARK RUBBER LIMITED

发明人：MEYERS, GRAHAM J.;HUDSON, BARRY L.;BERRY, DESMOND J.

分类号：F16K31/54;(IPC1-7):F16K21/00

主分类号：F16K31/54

摘要：A motor-operable fluid valve for a pump includes a valve body defining an open central portion, at least one high pressure inlet port in fluid communication with the open central portion, a plurality of lower pressure inlet and/or outlet ports in fluid communication with the open central portion via an array of flow passages, and a valve rotor having a plurality of openings and movably disposed within the open central portion between the line of flow from the high pressure to the lower pressure ports. The valve rotor further includes a centrally mounted shaft operable to selectively connect inlet and outlet ports; said valve further comprising a rotational means on the shaft of the valve rotor and a drive gear cooperative with the rotational means and comprising a top face and a bottom face, the top face being sloped so as to form a cam such that when the drive gear is rotated the rotational means may be raised and lowered by the camming action.