Priority valve assembly and method for operating a priority valve assembly

US9115850B2 · kind B2 · utility

Assignee

• AIRBUS OPERATIONS LIMITED · DE

Inventor

• Lars Hoffmann · Birkenfeld, DE

Key dates

• Filing date: Dec 7, 2012
• Grant date: Aug 25, 2015
• Expiry date: Jun 8, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86485
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A priority valve assembly includes a fluid supply line, a first fluid discharge line, and a second fluid discharge line, both of which are to be supplied with fluid via the fluid supply line. A priority valve throttles a fluid flow from the fluid supply line into the second fluid discharge line to prioritize the supply of fluid to the first fluid discharge line over the supply of fluid to the second fluid discharge line if a control parameter which is characteristic for an inlet fluid pressure (pE) in the fluid supply line falls below a first predetermined threshold value (p2). The priority valve reduces the throttling of the fluid flow from the fluid supply line into the second fluid discharge line if the control parameter falls below a second predetermined threshold value (p4) which is smaller than the first predetermined threshold value (p2).