Patent · US Expired

Active suspension system with enhanced response characteristics hydraulic circuit

US4982979A · kind A · utility

11Cited by
4References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 26, 1989
Grant dateJan 8, 1991
Priority date
Expiry dateDec 26, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60G2800/24
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A hydraulic circuit for an active suspension system employs a pressure accumulator connected to a drain line at an orientation upstream of a pilot operated operational one-way check valve. The pressure accumulator absorbs back pressure generated in the drain line due to flow resistance in the drain line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.