Patent · US Expired

Adjustable hydraulic vibration damper

US4723640A · kind A · utility

60Cited by
8References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 16, 1986
Grant dateFeb 9, 1988
Priority date
Expiry dateMay 16, 2006

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/88062
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Hydraulic adjustable vibration damper with a damping piston, which divides the work cylinder into two chamber halves, whereby the two chamber halves are connected with one another by a bypass, in which an electromagnet controls the bypass. The bypass valve located in the bypass includes an axially-movable valve body which works together with a passage and which is controlled by the adjustment apparatus, and at least one spring-loaded valve which operates as a function of the pressure connected in series with the valve body.

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