More Effective Cooling Method for Oil-free Linear Compressor

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Compressor vapor injection and regeneration is known to increase the efficiency of vapor compression cycles by approaching an isothermal compression process. Historically, research has focused on vapor injection for the scroll/screw compressors with a quantity of oil or vapor gas which limits the refrigerant compatibility and compressor designs. Linear compressors, however, offer very high efficiencies and an oil-free operation. Researchers at Purdue University have developed a novel cooling method for an oil-free linear compressor to approach the isothermal compression process, which provides more effective cooling and consumes less work. In fact, through simulation it was determined that the proposed vapor injection system can reduce compressor power consumption by 8% and reduce the compressor discharge temperature by up to 30⁰C.

-More Effective Cooling
-Consumes Less Work

Potential Applications:
-Vapor compression cycle
Apr 3, 2020
Utility Patent
United States

Apr 16, 2019
United States
Purdue Office of Technology Commercialization
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