Driveline systems anti-rattle means

Details Driveline systems anti-rattle means Driveline systems anti-rattle means

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 57/12 (2006.01) F16H 3/095 (2006.01) F16H 55/18 (2006.01) F16H 57/00 (2006.01)

Patent

CA 2073284

An improved vehicle transmission (10) which substantially reduces the noisy rattle normally produced by interengagement of the input shaft (12) and the input drive gear (14) of the transmission when the engine of the vehicle is operating at idle speed and the transmission is in neutral. The input shaft (12) and the input drive gear (14) are in constant driven relationship. In the inventive structure, the interengageable spline teeth (70 and 71) of the input shaft (12) and the input drive gear (14) of the transmission (10) are provided with a greater backlash (75) than is normally used. The intermittent firings of the engine (E) normally cause non-synchronous rotation of the input shaft (12) relative to the input drive gear (14) with attendant engagement of their respective spline teeth (70 and 71). The increased backlash (75) provides greater spacing between the interengaging teeth which substantially eliminates the engagement of the spline teeth and attendant rattle noise.

Transmission de véhicule améliorée (10) qui réduit substantiellement le cliquetis bruyant que produit normalement la mise en prise l'un sur l'autre de l'arbre primaire (12) et du pignon entraîneur (14) de la transmission lorsque le moteur du véhicule fonctionne au ralenti et que la boîte de vitesses est au point mort. L'arbre primaire (12) et le pignon entraîneur (14) sont en constante relation entraînée. Dans la structure innovative, les dentures conjuguées (70 et 71) de l'arbre primaire (12) et du pignon entraîneur (14) de la transmission (10) ont un plus grand jeu d'engrènement (75) que la normale. Les allumages intermittents du moteur (E) causent normalement une rotation non synchrone de l'arbre primaire (12) par rapport au pignon entraîneur (14) avec mise en prise concomitante de leurs dentures (70 et 71) respectives. Le jeu d'engrènement (75) augmenté assure un plus grand espacement entre les dents d'engrenage, ce qui élimine substantiellement la mise en prise des dentures et le bruit concomitant.

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