Sliding vane type of compressor-expander having differential eccentricity feature
US4088426A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | May 17, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2250/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor-expander for use in air conditioning including a chamber of generally elliptical cross section having a compressor side and an expander side each with inlet and outlet ports. Rotatable in the chamber is a vaned rotor defining enclosed compartments in which the air is positively compressed accompanied by an increase in temperature in the compressor side and is positively expanded with a decrease in temperature in the expander side, the elliptical eccentricity of the compressor side being less than 0.62 and the eccentricity on the expander side being less than the eccentricity of the compressor side in a ratio lying between 0.68 and 0.95. Pressure in the compartment at the point of discharge is substantially at atmospheric level, and the expander outlet port is so located that when a compartment on the expander side is centered on the major axis, the leading vane is at the threshold of discharge. Dissipation openings of progressively increasing size are provided at the threshold for throttling the discharge in the event that the pressure in the discharging compartment varies slightly from the atmospheric level. The compressor side outlet port and the expander side inlet …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.