The Cylindrical Energy Module is a sine-waved Swashplate engine

Swashplate engine

A swashplate engine, also called a barrel engine, is one type of axial engine. Swashplate engines are a type of reciprocating engine that replaces the common crankshaft with a circular swashplate which rotates....

 that can also be used as a stand-alone pump powered by an alternate source. The rotating swash-plate rotor assembly is moved back and forth via piston drive pins which follow a stationary Sinusoidal Cam Track that encircles the rotor assembly. For more information on how that works please check out the Swashplate engine

Swashplate engine

A swashplate engine, also called a barrel engine, is one type of axial engine. Swashplate engines are a type of reciprocating engine that replaces the common crankshaft with a circular swashplate which rotates....

 page.

The new pump design has been used in fire extinguishers, as well as mobile biological and chemical control units for the US military.

Inventor's claims of pump design:

• Only 7 moving parts
• Virtually clog-free operation
• Its weight is about one-sixth that of an equal-capacity unit
• Its output is 24 times that of most pumps or compressors of equal bore and stroke, and twice that of most engines.
• Can be made out of thermoplastic
  Thermoplastic
  Thermoplastic, also known as a thermosoftening plastic, is a polymer that turns to a liquid when heated and freezes to a very glassy state when cooled sufficiently...
  
  s for light weight uses (pumps only).

This version of the pump/compressor was invented by Eddie Paul, president of EP Industries in El Segundo, CA. (patented in 1993)