Configuration and function of refrigeration cycle
Cycle
Compression
(Component)
(Compressor)
Engine
Location
compartment
Circulates
refrigerant gas and
increases its
temperature and
pressure so that it
Function
can be liquefied
easily in condenser.
(Compression of
refrigerant)
Gas o gas
State of
Adiabatic
refrigerant
compression
PC88MR-10
Condensation
(Condenser)
In operator's cab
Front of radiator
(Built in air conditioner
unit)
Lowers temperature
Condenses
and pressure of
refrigerant to
refrigerant liquid and
discharge heat
gas for easy
absorbed in
evaporation with
evaporator.
throttle. Controls flow
rate, too.
(condensation of
refrigerant)
(Throttle action of
refrigerant)
Gas o liquid
Liquid o liquid, gas
Constant pressure
Adiabatic expansion
change
Configuration and function of refrigeration cycle
(ALL-K500-042-K-00-A)
Expansion
(Expansion valve)
In operator's cab
(Built into air
conditioner unit)
By evaporating
refrigerant, absorb
heat from the air
around the evaporator,
and cools the
surrounding air.
(Evaporation of
refrigerant)
Liquid, gas o gas
Constant pressure
change
80 Appendix
Evaporation
(Evaporator)
80-7