Air control valve and device for a cabin suspension system of a motor vehicle
US10995878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2500/2044
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air control valve (100) adapted to control an air flow (FA) for an air cushioning receptacle (802) in a motor vehicle (1000) includes a valve seat (120), a valve body (110), and a valve passage element (105) with a passage inlet (140) on an inlet side (141) and a passage outlet (150) on an outlet side (151). A coil spring (160) in contact with the valve body (110) and with a valve stop (152) on the outlet side (151) is adapted to exert a closing force (FC) to press the valve body (110) to the valve seat (120). A damping body (200) is arranged in an inner spring space (161) of the coil spring (160) such that the damping body (200) radially extends in a winding space (162) between a first coil winding (163) and a second coil winding (164) of the coil spring (160).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.