87-28
Restrictor
The restrictor restricts and controls refrigerant flow to the evaporator thus
lowering refrigerant temperature and pressure.
Upstream of the restrictor, the refrigerant is hot and under high pressure.
Downstream of the restrictor, the refrigerant is cold and under low
pressure.
A strainer located upstream of the restrictor filters out any dirt or particles.
Another strainer located downstream of the restrictor atomizes the
refrigerant before it enters the evaporator.
Notes:
Insert restrictor so that Arrow -A- points to evaporator.Illustration shows the evaporator from an Audi 90 model.
Pa
ge 8 of 13 Refri
gerant s
ystem
(R-134a
), com
ponents
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.6
