Valve device
US12117089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2023 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | May 2, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K2200/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve device includes a housing, a stationary disk, a drive device, a shaft and a rotor. The stationary disk is fixed at an inside of the housing and has at least one flow passage hole. The shaft is rotated about a central axis by the drive device. The rotor increases or decreases an opening degree of the at least one flow passage hole. The rotor includes: a drive disk that slides relative to the stationary disk; and a lever that is fixed to the drive disk and couples between the drive disk and the shaft. A torsion spring is placed between the shaft and the lever and urges the lever relative to the shaft in a circumferential direction around the central axis of the shaft. The shaft has a plurality of contact portions configured to contact the lever and respectively located at a plurality of locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.