Scroll Compression Principle; The Scroll Compression Process - Danfoss MLZ Evolution A Application Manuallines

Application Guidelines
The scroll compression
process
SUCTION
COMPRESSION
DISCHARGE

Scroll compression principle

The entire scroll compression process is
illustrated below. The centre of the orbiting scroll
traces a circular path around the centre of the
fixed scroll. This movement creates compression
pockets between the two scroll elements.
Low pressure suction gas is trapped within each
crescent-shaped pocket as it forms; continuous
motion of the orbiting scroll serves to seal
the pocket, which decreases in volume as the
Danfoss scroll compressors are manufactured
using the most advanced machining, assembly,
and process control techniques. In design of
both the compressor and the factory, very high
pocket moves towards the centre of the scroll
set, with corresponding increase in gas pressure.
Maximum compression is achieved, as the pocket
reaches the discharge port at the centre.
Scroll compression is a continuous process:
when one pocket of gas is being compressed
during the second orbit, another gas quantity
enters a new pocket formed at the periphery, and
simultaneously, another is being discharged.
standards of reliability and process control
were first priority. The result is a highly efficient
product with the highest reliability obtainable,
and a low sound level.
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