Valve device
US12359731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Oct 17, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K11/074
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve device includes a stationary disk, a shaft and a rotor. The valve device includes: a housing that has a boss portion, through which the shaft is inserted; and a seal member that is shaped in a ring form and is configured to seal a gap between the shaft and the boss portion. The shaft includes a holder that has a contact portion which is in contact with the seal member. The holder is made of a polymer material which includes reinforcing fibers contained in resin. At least the contact portion at the holder extends in an axial direction of the shaft, and a distal end portion of the holder located on one side in the axial direction is coupled to a gear arrangement of a drive device. The distal end portion of the holder has a trace of an injection gate for injecting the polymer material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.