Recent Blogs
Scotch Yoke Engine
Scotch Yoke Engine explained — pure sinusoidal piston motion, no connecting rod, used in compressors, pumps, and Bourke-style aero engines. Specs and tradeoffs.
Toggle-joint Duplex Air Compressor
Toggle-joint duplex air compressor explained — how the knuckle linkage drives twin pistons, where it's used in industry, and how to size delivery and pressure.
Piston Hydraulic Air Compressor
How a piston hydraulic air compressor works, sizing formula, worked example for a mining workshop, plus tradeoffs vs rotary screw and electric piston units.
Duplex Steam-actuated Air Compressor
How a duplex steam-actuated air compressor works — direct-acting steam pistons drive paired air cylinders for mine, locomotive, and shipyard service.
Crank Equalizing Angle
Crank Equalizing Angle balances piston load across a multi-cylinder air compressor crankshaft. Learn the formula, phasing rules, and worked example for shop air systems.
Compound Air Compressor
Compound air compressors stage compression across two cylinders with intercooling to deliver high-pressure air efficiently for industrial PET blow molding and rail brake systems.
Automatic Air Compressor
Learn how an automatic air compressor cycles on and off via a pressure switch, plus sizing math, real shop examples, and troubleshooting from FIRGELLI engineers.
Air Compressor Governor
How an air compressor governor works in truck and shop systems, with cut-in/cut-out math, a worked example, and diagnostic checks for fleet mechanics.
Air Compressor Cylinder
How an Air Compressor Cylinder works — bore, stroke, displacement math, real CFM examples, and how to size one for shop tools, HVAC, and industrial...
Air Compressor
How an air compressor works, sizing formulas, CFM vs PSI tradeoffs, and real-world examples from auto shops to CNC pneumatics — written by FIRGELLI engineers.