Years ago, it was common for shops to have a central power source that drove all the tools through a system of belts, wheels and driveshafts. The power was routed around the work space by mechanical ...

German researcher Otto Lutz introduced the swing-piston concept about 1923. Intended primarily as a high pressure compressor or gas generator for relatively high power gas turbine engines for ...

Moving hydraulic fluid through a system requires either a pump or compressor. Both achieve this goal, but through different operating methods. Pumps have the ability to move liquids or gases.

Pescara patented his engine in 1928, continued his work on free-piston engines, and in 1941, created a multi-stage free-piston air compressor engine. A review by R. Mikalsen and A.P. Roskilly at the ...

Maximizing compressor throughput, bounded by equipment and pipeline protection parameters, involves establishing an automated unloading-loading sequence that directs the compressor through a linear ...

HVACR field service terminology is often confusing and misused even by the most seasoned of veterans. But clarification of such terminology among service technicians is of the utmost importance in ...