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1. 发明授权

US4291718A Pressure valve 失效
标题翻译：压力阀
公开(公告)号：US4291718A
公开(公告)日：1981-09-29
申请号：US15172
申请日：1979-02-26
申请人： Sergei A. Sanin , Jury F. Ponomarenko , Vladislav D. Firstov , Vladimir N. Khorin , Arnold M. Ragutsky , Boris N. Kostjunin , Petr M. Bronfen
发明人： Sergei A. Sanin , Jury F. Ponomarenko , Vladislav D. Firstov , Vladimir N. Khorin , Arnold M. Ragutsky , Boris N. Kostjunin , Petr M. Bronfen
IPC分类号： F15B13/01 , F15B11/18 , G05D11/00
CPC分类号： F15B13/01 , Y10T137/271
摘要： The pressure valve is actuated by pressurized fluid and has a housing with a high-pressure space and a low-pressure space separated from each other by a partition. The partition has a bore accommodating a valve member. Axial passages are made in the body of the valve member for establishing alternating communication between the spaces upon the displacement of the valve member. The low-pressure space receives a pressure-relief valve spring-urged away from the partition and movable by the action of pressure selectively supplied to initiate relieving of the high-pressure space. The pressure-relief piston has an axial bore. The pressure valve incorporates an auxiliary piston in the axial bore of the pressure-relief piston and it cooperates with the valve member to displace the latter. The body of the valve member is provided with throttling passages communicating with the axial passages. The flow passage area of the throttling passages is substantially smaller than that of the axial passages, and the throttling passages are arranged so that during the high-pressure space pressure-relieving operation, the two spaces communicate via the throttling passages until the effort applied to the valve member by the auxiliary piston overcomes the effort applied to this valve member from the high-pressure chamber.
摘要翻译：压力阀由加压流体致动，并且具有壳体，其具有高压空间和通过隔板彼此隔开的低压空间。分隔件具有容纳阀构件的孔。在阀构件的主体中制造轴向通道，用于在阀构件的位移之间建立间隙之间的交替连通。低压空间接收压力释放阀，弹簧被推离离开隔板并通过选择性供应的压力的作用移动，以启动释放高压空间。减压活塞具有轴向孔。压力阀在减压活塞的轴向孔中并入辅助活塞，并且与阀构件配合以使其移位。阀构件的主体设置有与轴向通道连通的节流通道。节流通道的流路面积基本上小于轴向通道的流动通道面积，并且节流通道被布置成使得在高压空间减压操作期间，两个空间通过节流通道连通，直到施加到通过辅助活塞的阀构件克服了从高压室施加到该阀构件的作用。

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