Control valve for shock absorbers

US5211268A · kind A · utility

Assignee

• Monroe Auto Equipment Company · US

Inventors

• Magnus B. Lizell · Lidingö, SE
• Bert Vanroye · Borgloon, BE

Key dates

• Filing date: Jul 9, 1990
• Grant date: May 18, 1993
• Expiry date: Jul 9, 2010

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/364
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A direct acting shock absorber for damping the movement of the body of an automobile is disclosed. The shock absorber comprises a pressure cylinder forming a working chamber having first and second portions operable to store damping fluid. A piston is disposed within the pressure cylinder between the first and second portions of the working chamber. The shock absorber further comprises a fluid reservoir operable to store damping fluid. The shock absorber also includes a valve for permitting damping fluid to flow from the first portion of the working chamber to the fluid reservoir during movement of the piston in a first direction. Finally, a second valve is provided for permitting damping fluid to flow from the fluid reservoir to the second portion of the working chamber during movement of the piston in a second direction.