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Refrigerant system with multi-speed pulse width modulated compressor




Title: Refrigerant system with multi-speed pulse width modulated compressor.
Abstract: A refrigerant system is provided with a compressor having a motor that is operable at least at two distinct speeds. The pulse width modulation control is provided to cycle a compressor motor operation between its at least two speeds at a specific rate to exactly match thermal load demands in a conditioned space. The present invention reduces cycling and other efficiency losses as have been experienced in the prior art, as well as minimizes cost and may improve reliability. Also, the present invention can be utilized in conjunction with other known unloading techniques. ...


USPTO Applicaton #: #20090308086
Inventors: Alexander Lifson, Michael F. Taras, Mark A. Lifson


The Patent Description & Claims data below is from USPTO Patent Application 20090308086, Refrigerant system with multi-speed pulse width modulated compressor.




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stats Patent Info
Application #
US 20090308086 A1
Publish Date
12/17/2009
Document #
12375255
File Date
10/06/2006
USPTO Class
62115
Other USPTO Classes
62498, 418 551
International Class
/
Drawings
3


Cyclin Cycling Pulse Width Pulse Width Modulation Refrigerant

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Refrigeration   Processes   Compressing, Condensing And Evaporating  

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20091217|20090308086|refrigerant system with multi-speed pulse width modulated compressor|A refrigerant system is provided with a compressor having a motor that is operable at least at two distinct speeds. The pulse width modulation control is provided to cycle a compressor motor operation between its at least two speeds at a specific rate to exactly match thermal load demands in |
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