Electric Vehicles don't have engines, they have motors, which makes perfect sense since motors run on electricity but engines ...

Amacoil's linear motion platform is driven by a rolling ring drive that reciprocates automatically without requiring motor reversal. Using a control knob on the assembly, adjustments to linear speed ...

When spun (rotary motion), a cam’s lobes impart their irregular, eccentric shapes onto their corresponding rocker arm pads, which actuate the cylinder head’s valves (reciprocating motion).

Read this article by Super Street Magazine about the lower end portion of an engine and its contents and how they make up the reciprocating assembly.

Reciprocating engines convert pressure into rotating motion using pistons, while gas or combustion turbines use the pressure from the exploding fuel to turn a turbine.

Although split-ring seals are most often used for reciprocating motion, they are sometimes applied to hydraulic swivel joints and transmissions.

Why not cut out the middleman and use the piston's reciprocating motion to generate electricity? That obviates camshafts and most other rotating parts, too.

Patent model of Charles Page's 1853 electro-locomotive. US Patent 10480, Electromagnetic Engine, issued 31 January 1854 to Charles G. Page. No extant maker's markings. Four solenoids of heavy wires ...

Heath Evdemon has designed a new kind of wind turbine based on reciprocating motion that's currently being scaled up into a full-size prototype with the help of the Future Factory project.

A cam is a simple mechanism that converts rotary motion into linear, reciprocating motion.