Valve assembly and hydraulic circuit

US12060950B2 · kind B2 · utility

Assignee

• DANA MOTION SYSTEMS ITALIA S.R.L. · IT

Inventors

• Alessandro Sassi · Reggio nell'Emilia, IT
• Vanni Catellani · Reggio nell'Emilia, IT
• Stefano Fasano · Reggio nell'Emilia, IT
• Federica Franzoni · Reggio nell'Emilia, IT
• Stefano Lazzaretti · Poviglio, IT

Key dates

• Filing date: Jan 3, 2023
• Grant date: Aug 13, 2024
• Expiry date: Mar 4, 2043

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B2211/8613
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A valve assembly and a hydraulic circuit including the valve assembly are provided. The valve assembly comprises a hydraulically actuated valve configured to be biased from a first control position to a second control position by a hydraulic pressure applied to a first fluid port of the hydraulically actuated valve. A first switching threshold pressure required to switch the hydraulically actuated valve to its second control position when applied to the first fluid port of the hydraulically actuated valve in its first control position differs from a second switching threshold pressure required to keep the hydraulically actuated valve in its second control position when applied to the first fluid port of the hydraulically actuated valve in its second control position.