Refrigeration system and a fluid flow control device therefor
US4412432A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1982 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Apr 2, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7888
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A variable capacity refrigeration system and a fluid flow control device particularly well suited for use therewith. The fluid flow control device includes a body, a Belleville spring, and a plug. The body defines a fluid flow passage, and the plug is secured therewithin. The Belleville spring is positioned within the fluid flow passage and includes an inside edge defining a radially extending spring port for conducting fluid through the spring. The Belleville spring has a normal position, where the inside edge of the spring engages the plug to close the spring port, and an overcenter position, where the inside edge of the spring is spaced from the plug to allow fluid flow through the spring port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.