Apparatus for controlling the performance of a motor compressor
US4281972A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1979 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Jan 31, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/902
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hermetically sealed motor compressor unit has refrigerant gas at discharge pressure substantially surrounding the motor of the unit. The compressor includes at least two cylinders in which gas is compressed. A suction plenum for receiving gas at suction pressure surrounds each of the cylinders. Conduits, equal in number to the number of cylinders, are disposed externally of the compressor for delivering the gas into each of the plenums. One end of the conduit is connected to the plenum and the other end of each conduit is interconnected with the remaining conduits. The pressure pulsations developed in each conduit are controlled whereby the pressure in each plenum is at a maximum when the suction valve for a particular cylinder opens and is at a minimum when the piston is substantially at bottom dead center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.