Relief valve device
US10851687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Mar 15, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K17/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A relieve valve device includes a housing including a valve chamber, an orifice, and a relief discharge port, a valve body that opens and closes the relief discharge port while moving inside the valve chamber of the housing, a relief valve including an elastic member that elastically biases the valve body in a direction in which the valve body closes the relief discharge port, and an oil control valve that controls a supply of oil into the valve chamber. An inlet port for the oil supplied from the oil control valve and the orifice are configured such that the oil can always circulate in the valve chamber. The valve chamber includes a first valve passage portion including the orifice, and a second valve passage portion. The valve body includes a first valve portion and a second valve portion arranged in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.