Damping force controlling valve assembly for shock absorber
US8556049B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jan 9, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86622
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damping force controlling valve assembly for a shock absorber is provided. The damping force controlling valve assembly includes: a main body part of a retainer having an inlet passage connected to a high pressure side of the shock absorber; a main valve generating a damping force while resisting a working fluid flowing in through the inlet passage; a spool rod part interacting with a spool inserted thereinto and supplying a working fluid through a connection port to a back-pressure chamber provided at the rear of the main valve; a solenoid part controlling a position of the spool to adjust a pressure of the back-pressure chamber; and an auxiliary valve disposed at an upstream of the main valve to generate a damping force in an extremely low speed section in advance of the main valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.