How Portable Diesel Air Compressors Work

Let me show you how diesel-driven, oil-injected rotary screw compressors work.

These days, most of the portable diesel (tow-behind) air compressors are oil-injected rotary screw compressors.

In other words: they are rotary screw compressors. And they are of the oil-injected type.

Oil-free screw compressors also exist, but they are not very often used in field work, as a diesel-driven compressor.

Piston compressors (portable) are nowadays only available as those tiny portable compressors (and we’re not inflating tires here! We are drilling holes, sandblasting, jack-hamering and other fun stuff, right?).

Oil-injected rotary screw compressors

Portable diesel compressor (mobile compressors, tow-behind compressors) are oil-injected rotary screw compressors.

The working principles are the same as those for stationary (electric) rotary screw air compressors.

Except, of course we use a diesel engine to drive the compressor.

And there are quite a lot of differences in the control system and the way we control the capacity of the portable diesel compressor.

This makes the portable diesel compressor a bit more difficult to understand, since we now have a whole diesel engine to think about.

But don’t worry, let me show you how these machines work

Controlling Output Pressure

coming soon! promised 😉