Distribution valve and refrigeration system
US11378191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Dec 2, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B41/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A distribution valve comprises: a housing, and a spool in the housing, the spool mounted in a valve chamber so as to be rotatable along an axial axis, and the spool comprising a sidewall comprising a first spheroidal segment and a second spheroidal segment, a spool first port in the first spheroidal segment, and a spool second port in the second spheroidal segment; and an intermediate member mounted between the housing and the spool and fixed relative to the housing and in sliding contact with the sidewall of the spool in a sealed manner, wherein a first valve port is defined when the spool first port and an intermediate first port overlap, and a second valve port is defined when the spool second port and an intermediate second port overlap, wherein a degree of opening of the valve ports changes as the spool rotates relative to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.