公开(公告)号：WO2013090739A1

公开(公告)日：2013-06-20

申请号：PCT/US2012/069780

申请日：2012-12-14

Applicant: GRACO MINNESOTA INC. ,  HINES, Bradley, H. ,  HORNING, Jeromy, D. ,  LUCZAK, Mariusz, J. ,  BLANKUSH, William, M. ,  SHULTZ, Mark, D.

Inventor： HINES, Bradley, H. ,  HORNING, Jeromy, D. ,  LUCZAK, Mariusz, J. ,  BLANKUSH, William, M. ,  SHULTZ, Mark, D.

IPC: F16K15/18 ,  F16K31/524 ,  F16K37/00 ,  F16K31/60

CPC classification number: F16K17/06 ,  F04B7/02 ,  F04B49/22 ,  F04C15/064 ,  F16K15/025 ,  F16K15/03 ,  F16K15/044 ,  Y10T137/7837 ,  Y10T137/7878 ,  Y10T137/7906

Abstract: A check valve comprises a housing, a fluid passage, a seat, a valve member and a stop. The fluid passage extends through the housing. The seat is disposed in the fluid passage. The valve member is positioned in the passage to engage the seat. The stop extends through the housing to engage the valve member. The stop is accessible from outside the housing to adjust a distance the valve member can travel from the seat. In one embodiment, the stop includes a variable stop feature, such as an offset pin or a cam. In another embodiment, the stop includes a pump control valve. In yet another embodiment, the housing includes markings to indicate a position of the stop. The valve member comprises a ball or a poppet in different embodiments.

Abstract translation: 止回阀包括壳体，流体通道，座椅，阀构件和止挡件。 流体通道延伸穿过壳体。 座椅设置在流体通道中。 阀构件定位在通道中以接合座椅。 止动件延伸穿过壳体以接合阀构件。 该挡块可从壳体的外部进入，以调节阀构件能够从座椅移动的距离。 在一个实施例中，止动件包括可变止动特征，例如偏置销或凸轮。 在另一个实施例中，止动件包括泵控制阀。 在另一个实施例中，壳体包括用于指示止动件的位置的标记。 在不同的实施例中，阀构件包括球或提升阀。