Fluid valve assembly
US10094349B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 2014 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Nov 18, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M63/0265
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid valve assembly having a housing with a valve seat which forms a fluid port. A valve is movable along an axis relative to the port between an open and a closed position. This valve includes a protrusion complementary in shape to, but slightly smaller than, the port. The protrusion is at least partially positioned in the port when the valve is in its closed position at which time a clearance space between the port and the protrusion is sufficiently small to prevent fluid flow through the port. A main spring disposed between the housing and the valve resiliently urges the valve towards its closed position. A second spring is also operatively positioned between the valve and the housing which urges the valve away from the valve seat towards its open position and prevents contact between the valve and the valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.