Valve in particular a proportional pressure relief valve

US8807519B2 · kind B2 · utility

Assignee

• HYDAC FLUIDTECHNIK GMBH · DE

Inventors

• Peter Bruck · Althornbach, DE
• Markus Bill · Eppelborn, DE

Key dates

• Filing date: Apr 1, 2006
• Grant date: Aug 19, 2014
• Expiry date: Jan 10, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/777
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A valve, in particular, a proportional pressure relief valve, includes an electrically controlled solenoid system (10) for the control of an operating part (12, 12a). The operating part cooperates with a valve element (26) extending longitudinally inside a valve housing (24) to release a fluid transport connection path between a fluid inlet (32) and a fluid outlet (34) in its open position and to block the through path in its closed position. An energy store, preferably in the form of a compression spring (58), is arranged between the operating part (12, 12a) and valve element (26) in a free gap between the two and tends to hold the valve element (26) in the direction of its closed position. The operating piece (12a) is embodied as a guide piston having a longitudinal guide for the valve element (26).