Figure 3-5.—Compressor Assembly, Model 4211-1 Carbon
Dioxide Transfer Unit.
Compressor Assembly, Model 4211-1
Carbon Dioxide Transfer Unit
This unit, shown in figure 3-5, is functionally
similar to the compressor described for the 4211
unit. The lower section of the compressor
Figure 3-6.—Running Gear Assembly.
consists of a cylinder body (6), plunger (7),
molded metallic packing (8), spacer (10), and
plunger guide (9). The upper section of the unit
consists of a cylinder head (3) with an inlet and
outlet port, an inlet valve check (11), an outlet
valve check (4), and a discharge valve cap (l). A
safety disc and washer located in the cylinder head
behind the safety disc plug (13) releases the carbon
dioxide from the compressor when the pressure
exceeds the 2650- to 3000-psi range.
Running Gear Assembly
The running gear assembly, shown in figure
3-6, consists of the crankcase (4), crosshead guide
(l), crosshead (2), connecting rod (3), and the
3-7
