Editing Compressor (section)

====Rolling piston====

[[File:Rollkolbenverdichter.png|thumb|Rolling piston compressor]]
The Rolling piston in a rolling piston style compressor plays the part of a partition between the vane and the rotor.<ref>{{cite web|url=http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1390&context=icec|title=Motion of Rolling Piston in Rotary Compressor|website=Purdue University|archive-url=https://web.archive.org/web/20170816232859/http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1390&context=icec|archive-date=2017-08-16|url-status=live|access-date=2017-08-16}}</ref> Rolling piston forces gas against a stationary vane.

Two of these compressors can be mounted on the same shaft to increase capacity and reduce vibration and noise.<ref>{{Cite web|url=https://news.samsung.com/global/what-the-new-samsung-mini-rotary-compressor-means|title=What the New Samsung Mini Rotary Compressor Means|website=news.samsung.com}}</ref> A design without a spring is known as a swing compressor.<ref>{{Cite web|url=https://www.daikin.com/products/ac/lineup/skyair/|title=High Efficiency Compressor to Achieve a High COP {{pipe}} Air Conditioning and Refrigeration {{pipe}} Daikin Global|website=www.daikin.com}}</ref>

In refrigeration and air conditioning, this type of compressor is also known as a rotary compressor, with rotary screw compressors being also known simply as screw compressors.

It offers higher efficiency than reciprocating compressors due to less losses from the clearance volume between the piston and the compressor casing, it's 40% to 50% smaller and lighter for a given capacity (which can impact material and shipping costs when used in a product), causes less vibration, has fewer components and is more reliable than a reciprocating compressor. But its structure does not allow capacities beyond 5 refrigeration tons, is less reliable than other compressor types, and is less efficient than other compressor types due to losses from the clearance volume.<ref name="autogenerated1"/>