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A scroll compressor (also called spiral compressor, scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. [1] It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger ) and as a vacuum pump .
The scroll-type supercharger is a scroll compressor used as a positive displacement orbiting-spiral supercharger. It is a compromise between the more rugged rotating lobe, and the more efficient sliding vane type superchargers, and is considered to offer the highest potential in regard to efficiency, noise and pressure fluctuation.
A vapor compression chiller typically uses one of four types of compressor: Reciprocating compression, scroll compression, screw-driven compression, and centrifugal compression are all mechanical machines that can be powered by electric motors, steam, or gas turbines. Using electric motors in a semi-hermetic or hermetic configuration is the ...
Today, the scroll compressor is a dominant technology in the HVAC& ;R industry. In air conditioning systems it is very common to use a number of scroll expanders in parallel because it increases the load sharing mechanism and part-load performance. In scroll expanders, the moment at which discharge and suction take place is only a function ...
These compressors are often described as being either hermetic, open, or semi-hermetic, to describe how the compressor is enclosed and how the motor drive is situated in relation to the gas or vapor being compressed. Some compressors outside of refrigeration service may also be hermetically sealed to some extent, typically when handling toxic ...
Two people have been arrested and are facing charges of felony child abuse after a one-month-old baby was discovered in the median of a road Christmas morning.
WASHINGTON (Reuters) - U.S. manufacturers are optimistic that the sector will emerge from a prolonged recession next year, though capital expenditure growth was likely to fall short of 2024's pace.
WASHINGTON (Reuters) -A large number of Americans' metadata has been stolen in the sweeping cyberespionage campaign carried out by a Chinese hacking group dubbed "Salt Typhoon," a senior U.S ...