Sliding-Vane Type Compressor Operation - Kubota KX080-3 Workshop Manual

WSM KX080-3 Mechanism
2 Operation
Fig. Operation of Sliding-vane Type Compressor
1) Suction
The refrigerant gas exits from the evaporator by the operation of the compressor, enters the com-
pressor s low-pressure chamber. As the rotor turns together with the vanes, the refrigerant gas is
drawn from the suction port into the cylinder.
2)
ompression
After completing suction, the refrigerant gas, which is sealed by the vanes in the cylinder, becomes
compressed as the vanes rotate. At this time, the sealing between the tip of the vanes and the cylin-
der wall is ensured by the compressor oil.
3)
ischarge
At the compression continues and the refrigerant pressure in the cylinder increases to the point that
it becomes higher than that of the high-pressure chamber, the refrigerant gas is discharged.
Even when the pressure in cylinder because the high-pressure chamber pressure maintains the dis-
charge valve closed.
The compressor repeats the cycle described above to enable the five chambers, which are parti-
tioned by the vanes in the cylinder, to perform suction, compression, and discharge twice for each
rotation of the rotor.
VI-M-12
VI Air Conditioner