Valve having a poppet with a soft seal and features enhancing life of the soft seal
US11428329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2021 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K47/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An example valve includes a valve body having a first port and a second port; a poppet movable within the valve body and comprising (i) a conical surface, (ii) an exterior cylindrical surface, and (iii) an annular groove; and a seal disposed in the annular groove of the poppet, wherein the poppet is movable to a partially-unseated position in which the poppet moves to form a flow area allowing fluid flow from the first port to the second port, wherein the exterior cylindrical surface of the poppet forms a flow restriction with the interior surface of the valve body downstream from the flow area, wherein the conical surface is configured to direct fluid toward the interior surface of the valve body, away from the seal, and wherein the flow restriction generates back-pressure around the seal to reduce velocity of fluid around the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.