Mitsubishi 1993 3000GT, Technical Information Manual

Page: 208 / 216

From July 1989, the consumption and production of
specially designated chlorofluorocarbon have been
regulated world-wide to protect the ozone layer. Chloro-
fluorocarbon R-12, used as the Refrigerant in
automobile air conditioners, is the object of those
regulations and there is a need to control the amount of
chlorofluorocarbon used as much as possible. The small
amount refrigerant system has been developed to
improve the performance of the structural parts of the air
conditioner in accord with those regulations, to make
them more compact, etc.
REFRIGERANT LINE
The 3-layer type hose that was used up to now was
replaced by a 4-layer type hose in order to reduce the
amount of refrigerant permeated into the refrigerant line
rubber hose.
AIR CONDITIONER COMPRESSOR
Leakage of refrigerant from bearings has been reduced
by changing the air conditioner bearings from metal seal
to lip seal type.
CONDENSER
By adopting a multi-flow type condenser, not only heat
exchange performance has been improved, but also the
condenser has become more compact.
RECEIVER
A receiver with a shade to prevent bubbling
IS
used.
Bubbling inside the receiver can be controlled with the
shade. Consequently, as shown in the figure, the range
of liquid refrigerant mixed in the bubbles can be reduced.
As a result, the amount of refrigerant can be reduced
(Figure on the left (A)).
Furthermore, the amount of refrigerant is further reduced
by making the bottom of the receiver into a cone shape
(Fiqure on the left (B)).
SMALL AMOUNT
REFRIGERANT SYSTEM
7-36
ELECTRICAL - Heater and Air Conditioning