公开(公告)号：US10760596B2

公开(公告)日：2020-09-01

申请号：US16075558

申请日：2017-03-28

申请人： Parker-Hannifin Corporation

发明人： Jarmo Antero Harsia ,  Germano Franzoni

IPC分类号： F15B13/04 ,  F16K11/07 ,  F15B13/042

摘要： A valve member having a supply pressure and a method of controlling the supply pressure in the valve member includes a valve body having a fluid inlet, a fluid outlet, and a controlled port. The valve member includes a spool moveable within the valve body to fluidly connect at least one of the fluid inlet and the fluid outlet with the controlled port. The spool includes an end in fluid communication with a control pressure port and a pin received within the end of the spool that is moveable relative to the spool. Fluid flow through the control pressure port acts against a cross-sectional area of the pin and an annular area of the spool to modulate the supply pressure through the valve member.

公开(公告)号：US20190032682A1

公开(公告)日：2019-01-31

申请号：US16075558

申请日：2017-03-28

申请人： Parker-Hannifin Corporation

发明人： Jarmo Antero Harsia ,  Germano Franzoni

IPC分类号： F15B13/04 ,  F15B13/042 ,  F16K11/07

CPC分类号： F15B13/0403 ,  F15B13/042 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/351 ,  F15B2211/353 ,  F16K11/0716

摘要： A valve member having a supply pressure and a method of controlling the supply pressure in the valve member includes a valve body having a fluid inlet, a fluid outlet, and a controlled port. The valve member includes a spool moveable within the valve body to fluidly connect at least one of the fluid inlet and the fluid outlet with the controlled port. The spool includes an end in fluid communication with a control pressure port and a pin received within the end of the spool that is moveable relative to the spool. Fluid flow through the control pressure port acts against a cross-sectional area of the pin and an annular area of the spool to modulate the supply pressure through the valve member.