Ultra efficient engine

US8256227B2 · kind B2 · utility

Inventor

• John Devine · Tralee, IE

Key dates

• Filing date: Aug 26, 2008
• Grant date: Sep 4, 2012
• Expiry date: Mar 25, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B41/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An engine comprises a combustion chamber, an expansion cylinder with a piston adapted for reciprocating motion in the expansion cylinder via combustion products combusted in the combustion chamber, and a transmission associated with the expansion cylinder. The transmission has a guide frame with a first drive wheel rotatably mounted at one end of the guide frame and a second drive wheel rotatably mounted at an opposite longitudinal end of the guide frame. Each of the drive wheels is driven by an inextensible continuous loop. The guide frame has a crank head adapted to reciprocatingly translate along the guide frame. The crank head has a drive connection pivotally connecting the crank head to the loop. The crank head is operatively connected to the piston such that reciprocating motion of the piston results in corresponding reciprocating motion of the crank head, movement of the loop, and corresponding rotation of the drive wheels.