Patent · US Active

Valve arrangement and method for controlling a pilot pressure in a valve arrangement

US11466748B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

ÖHLINS RACING AB · SE

Inventors

Håkan Malmborg · Norrahammar, SE
Fredrik Larsson · Vaggeryd, SE
Björn Stjärne · Jönköping, SE

Key dates

Filing date	Feb 11, 2019
Grant date	Oct 11, 2022
Priority date	—
Expiry date	May 1, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F2230/24
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A valve arrangement and a method for controlling a pilot pressure in the valve arrangement for a shock absorber, wherein the valve arrangement comprises a control valve member movable in an axial direction relative a main valve member, a pilot chamber being in fluid communication with a first port and/or a second port. The arrangement and method comprise, during an active control mode, pressure relieving (AM S1) the control valve member and applying an actuating force (AM S2) for controlling the pilot pressure (Pp). Further, during a failsafe control mode, controlling (FM S1) the control valve member by means of the pilot pressure (PP). And finally, during both the active control mode and the failsafe control mode restricting (S3) the pilot fluid flow (PFC, PFR) by at least one common valve seat (R2).

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