Invention Grant
- Patent Title: Proportional sequence valve with pressure amplification device
-
Application No.: US16075558Application Date: 2017-03-28
-
Publication No.: US10760596B2Publication Date: 2020-09-01
- Inventor: Jarmo Antero Harsia , Germano Franzoni
- Applicant: Parker-Hannifin Corporation
- Applicant Address: US OH Cleveland
- Assignee: Parker-Hannifin Corporation
- Current Assignee: Parker-Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- International Application: PCT/US2017/024510 WO 20170328
- International Announcement: WO2017/172746 WO 20171005
- Main IPC: F15B13/04
- IPC: F15B13/04 ; F16K11/07 ; F15B13/042

Abstract:
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.
Public/Granted literature
- US20190032682A1 Proportional Sequence Valve with Pressure Amplification Device Public/Granted day:2019-01-31
Information query