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Vortex machinery with liquid injection

A scroll compressor, liquid technology, applied in the direction of liquid displacement machinery, liquid fuel engine, rotary piston machinery, etc.

Inactive Publication Date: 2006-05-03
COPELAND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These systems, which inject directly into one or more closed wells, allow for more precise temperature control, but they require additional machined scrolls and require additional fittings through the scroll compressor hermetic casing

Method used

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  • Vortex machinery with liquid injection
  • Vortex machinery with liquid injection
  • Vortex machinery with liquid injection

Examples

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Embodiment Construction

[0014] The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention in its application, or use.

[0015] Referring now to the drawings, in which like numerals indicate like or corresponding parts throughout the several views, in figure 1 A scroll compressor including a liquid injection system according to the present invention is shown in and generally indicated at 10 .

[0016] Scroll compressor 10 includes a generally cylindrical hermetic casing 12 having a cover 14 welded at its upper end and a base 16 welded at its lower end with several Integrally formed mounting feet (not shown). The cover 14 is equipped with a refrigerant discharge fitting 18 which may have a conventional discharge valve (not shown) therein. Other major elements secured to the seal case 12 include a transversely extending bulkhead 20 welded to the seal case 12 around its perimeter at the same point where the cover 14 is welded to...

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Abstract

A refrigeration circuit comprising a scroll compressor, a condenser and an evaporator connected in a closed loop. Liquid injection systems take liquid refrigerant from the refrigeration circuit and inject it into the suction line leading to the compressor to cool the refrigerant in the refrigeration circuit. An electronic control unit operates a controllable valve based on temperature readings received from an exhaust temperature sensor. The controllable valve can be an electronic expansion valve or a solenoid valve.

Description

technical field [0001] The present invention relates generally to scroll machines. More particularly, the present invention relates to hermetic scroll compressors including a fluid injection system which injects fluid into the suction line of the compressor when the compressor exceeds a temperature range. Background technique [0002] Refrigeration and air conditioning systems generally include a compressor, a condenser, an expansion valve or equivalent and an evaporator. These components are connected sequentially in a continuous flow path. A working fluid flows through the system, alternating between a liquid phase and a vapor or gas phase. [0003] Various compressor types have been used in refrigeration systems including, but not limited to, reciprocating compressors, scroll compressors, and rotary compressors. Rotary compressors may include various vane compressors and scroll machines. Scroll machines or scroll compressors are constructed with two scrolls, with each...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/10F25B41/04F04B39/06F04C18/02F04C23/00F04C29/00F04C29/04F25B1/00F25B31/00
CPCF04C18/0215F04C23/008F04C29/0014F04C29/042F25B31/008F04C18/02
Inventor 王贻任韦恩·R·贝里
Owner COPELAND CORP
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