Expansion valve, and refrigeration cycle system using expansion valve
US10401065B2 · kind B2 · utility
2Cited by
0References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Provided is an expansion valve, including: a case having a valve chamber formed therein; and a valve element arranged in the valve chamber. The case includes: a side wall portion to which a first pipe is connected; and an end wall portion to which a second pipe is connected. The end wall portion has a fluid communication hole to be opened and closed by the valve element. The fluid communication hole is formed so that the following expression is satisfied: L<λ/2, where L represents an axial length of the fluid communication hole, and λ represents a resonance wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.