Crankshaft giving adjustable stroke - has drive to adjusting components from one end via components rotating with it

• Main Author: INGELHEIM, GRAF VON, PETER, 8309 AU, DE
• Format: Patent
• Language: English; German
• Published: 08.05.1991
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The crankshaft contains a drive mechanism (7, 16) by which the centre distance between the connecting rod big end and the journal (5) is adjustable while it is rotating. The drive is taken from one end (17) of the crankshaft to the components (1, 2) effecting the adjustment via components (6-9, 11-13) rotating with it, and which move in relation to it only when adjustment is taking place. Adjusting power is supplied to them from outside via a first drive mechanism (16, 20) actuated by the movement of components (22, 23) supported on the engine housing. USE/ADVANTAGE - Simple adjustment of piston top-dead-centre position in engines, pumps or hydraulic motors.