Gearbox for driving engine alternator - has electromagnetic brake increasing drive ratio at low engine speed to boost alternator power

• Main Authors: FRANK CHAZOT, CLAUDE LEDAMOISEL
• Format: Patent
• Language: English; French
• Published: 22.09.1989
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINE PLANTS IN GENERAL; GENERATION; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

The alternator transmission system includes the shaft (12) of the alternator (1) connected to a pinion (30) with channels (13) preventing rotation of the pinion on the shaft. The pinion forms part of an epicylcic gear train, around which there is a satellite carrier (40). This satellite carrier is fixed to the pulley (41) which is driven by a belt (42) attached to the engine. An electromagnetic brake (54) including a coil (55) is able to change the drive ratio of the epicyclic gear system. The alternator fan however is connected to the pulley and satellite carrier, so that it runs at the speed of the input to the gear system, and not at the higher alternator speed. ADVANTAGE - Alternator fan does not run at excessive speed, wasting power. Il s'agit d'un dispositif d'entraînement par un organe moteur d'un organe récepteur comportant un ventilateur, ledit dispositif étant du genre comportant une boîte de vitesses 2.Suivant l'invention, le ventilateur 11 est lié dans un rapport d'entraînement fixe à l'organe d'entrée 40 de la boîte de vitesses.