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1. WO2007030840 - TRANSMISSION RATIO RANGE EXTENSION

Publication Number WO/2007/030840
Publication Date 15.03.2007
International Application No. PCT/ZA2006/000100
International Filing Date 14.08.2006
IPC
F16H 37/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
37Combinations of mechanical gearings, not provided for in groups F16H1/-F16H35/116
02comprising essentially only toothed or friction gearings
CPC
F16H 2037/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
37Combinations of mechanical gearings, not hereinbefore provided for
02comprising essentially only toothed or friction gearings
021toothed gearing combined with continuous variable friction gearing
025CVT's in which the ratio coverage is used more than once to produce the overall transmission ratio coverage, e.g. by shift to end of range, then change ratio in sub-transmission and shift CVT through range once again
F16H 37/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
37Combinations of mechanical gearings, not hereinbefore provided for
02comprising essentially only toothed or friction gearings
Applicants
  • NAUDE, Johannes Jacobus [ZA]/[ZA]
Inventors
  • NAUDE, Johannes Jacobus
Agents
  • MCCALLUM, RADEMEYER & FREIMOND
Priority Data
2005/0725409.09.2005ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TRANSMISSION RATIO RANGE EXTENSION
(FR) EXTENSION DE LA PLAGE DES RAPPORTS D'UNE TRANSMISSION
Abstract
(EN)
This invention relates to a method of extending the ratio range of a primary transmission with the method including the steps of: applying power from a prime mover to the primary transmission in a single first linear power path, shifting the primary transmission through its normal ratio range from its first to its terminal ratio, reversing the direction of the linear power path through a ratio range extension arrangement into a second linear power path through the primary transmission, shifting the primary transmission ratio from its terminal ratio back to its first ratio, and adding the inverse ratio range ratios to the normal ratio range ratios to provide an extended ratio range of the primary transmission which is in the same direction as the normal ratio range of the primary transmission.
(FR)
L'invention porte sur un procédé d'extension de la plage des rapports d'une transmission primaire comportant les étapes suivantes: appliquer le couple moteur à la transmission primaire dans une première phase linéaire de puissance; monter normalement les vitesses de la transmission primaire du premier rapport au dernier; inverser le sens de la phase linéaire de puissance par une extension de la plage des rapports dans une deuxième phase linéaire de puissance de la transmission primaire; descendre les vitesses du dernier rapport au premier rapport; et ajouter les vitesses de la plage des rapports inverses à la plage des rapports normaux pour obtenir un plage étendue des rapports de la transmission primaire, dans le même sens que la plage normale des rapports de la transmission primaire.
Also published as
EP06804317
EP6804317
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