TM 5-4310-367-14
Compressing the air heats it up. The intercooler E gets rid
1-14. AIR COMPRESSOR. The picture below shows the
of some of that heat before passing the air on to the high
general operation of the air compressor. The air com-
pressure stage.
pressor has two low pressure cylinders which both feed
into the high pressure cylinder. Only one low pressure
The high pressure stage works the same as the low pressure
cylinder is shown here.
stage except that the high pressure piston goes up when the
low pressure pistons go down. This way, the low pressure
pistons are drawing air in while the high pressure is pushing
The compression cycle starts with the low pressure pistons
air out.
A at the top of stroke.
Compressed air from the high pressure stage goes to the air
tank through the aftercooler. The aftercooler gets rid of
some more heat.
When the pistons move down, they draw air through the air
filters B and inlet valve C into the cylinders. The air filters
1-15. ENGINE. The air compressor is driven by one of two
keep dirt out of the compressor.
military standard model gasoline engines, either model
1A08-3 (20-910) or 2A016-3 (20-905). For a description
of engine model 1A08-3 refer to TM 5-2805-256-14. For
a description of engine model 2A016-3 refer to TM 5-
On the upstroke, inlet valve C closes and the pistons A push
2805-257-14.
air out into the intercooler E through the exhaust valve D.
Change 1
1-6
