Electric three-way valve
US8844569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Feb 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8782
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electric three-way valve comprises: an input port, a plurality of output ports and a valve core which rotates in a sliding manner in the valve seat by a driving force of a motor unit, wherein the valve core selectively opens or closes the plurality of output ports, the motor unit is attached as a separated constituent to an outside of an upper end surface of a cylindrical casing introducing refrigerant, the valve core is driven by a gear unit which transmits the driving force of the motor unit and is disposed inside the cylindrical casing, the cylindrical casing includes one opening portion and a side wall with an apex portion, a housing which is fixed to a cylindrical wall portion of the apex portion and is equipped with the motor unit is uprightly formed in the other opening portion, and the housing is attached to the cylindrical casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.