Sumitomo HC-4E1 - PRINCIPLES OF OPERATION

PRINCIPLES OF OPERATION
9
The compressor continuously draws low-pressure helium from the system return line.
It compresses, cools and cleans the gas, then delivers it through the system gas supply line
to the cold head. See Figure 1.
1.
Oil Injection Filter
11.
Gas Supply Pressure Gauge
2.
Oil Injection Orifice
12.
Gas Equalization Solenoid Valve
3.
Heat Exchanger
13.
Gas Supply Coupling
4.
Compressor Capsule
14.
Gas Return Coupling
5.
Oil Separator
15.
Water Supply Fitting
6.
Oil Capillary Filter
16.
Water Return Fitting
7.
Oil Capillary
17.
Pressure Relief Valve
8.
9.
Adsorber
Internal By-pass Orifice
18.
Temperature Switches (water, oil,
gas and compressor shell)
10.
Surge Bottle
19.
Internal Relief Valve
Figure 1 HC-4E Flow Diagram