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ES8400812A1 - Variable speed transmission for motor vehicle - gives continuous variation of forward speed plus reverse via belt drive and clutches - Google Patents

Variable speed transmission for motor vehicle - gives continuous variation of forward speed plus reverse via belt drive and clutches

Info

Publication number
ES8400812A1
ES8400812A1 ES519350A ES519350A ES8400812A1 ES 8400812 A1 ES8400812 A1 ES 8400812A1 ES 519350 A ES519350 A ES 519350A ES 519350 A ES519350 A ES 519350A ES 8400812 A1 ES8400812 A1 ES 8400812A1
Authority
ES
Spain
Prior art keywords
clutches
continuous variation
shafts
motor vehicle
belt drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES519350A
Other languages
Spanish (es)
Other versions
ES519350A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of ES8400812A1 publication Critical patent/ES8400812A1/en
Publication of ES519350A0 publication Critical patent/ES519350A0/en
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/021—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings toothed gearing combined with continuous variable friction gearing
    • F16H2037/025—CVT'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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The variable ratio transmission has a speed variator (6-10) giving continuous variation of speed between shafts (2,6). The high speeds are produced by two releasable clutches (2-10 and 13-6) and the low ones from two reducers (2-3-5 and 11-12-13). These are paired, cogged wheels with intermediate coupling sleeves (2,13). Two ratios of these reducers are chosen so that, at maximum reduction between the shafts, disengagement of the couplers and engagement of the reducers produces no change of speed or sense of rotation in these shafts. The variator is symmetrical, with a variation limit p, the ratio of speeds between first and second shafts being 1/p to p, giving a complete range of transmission ratios of p2. A reverse gear is also provided.
ES519350A 1982-01-29 1983-01-28 TRANSMISSION OF VARIABLE RELATION BETWEEN AN ENTRANCE TREE AND AN EXIT TREE. Granted ES519350A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8201509A FR2520826B1 (en) 1982-01-29 1982-01-29 DRIVE TRANSMISSION WITH TWO OPERATING MODES

Publications (2)

Publication Number Publication Date
ES8400812A1 true ES8400812A1 (en) 1983-11-01
ES519350A0 ES519350A0 (en) 1983-11-01

Family

ID=9270509

Family Applications (1)

Application Number Title Priority Date Filing Date
ES519350A Granted ES519350A0 (en) 1982-01-29 1983-01-28 TRANSMISSION OF VARIABLE RELATION BETWEEN AN ENTRANCE TREE AND AN EXIT TREE.

Country Status (2)

Country Link
ES (1) ES519350A0 (en)
FR (1) FR2520826B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539866A (en) * 1983-11-03 1985-09-10 General Motors Corporation Continuously variable transmission
AU3660984A (en) * 1983-12-23 1985-12-05 Borg-Warner Corporation Multi-pass continuously variable transmission
AU6019686A (en) * 1985-07-22 1987-01-29 Borg-Warner Corporation Dual pass continuously variable transmission with asymmetric variator
DE4119291A1 (en) * 1991-06-12 1992-12-17 Hoehn Bernd Robert Prof Dr Ing Stepless variable speed transmission system - has two parallel shafts with coned pulleysand multiple clutches to provide wide range of speed ratios
DE4207093A1 (en) * 1992-03-06 1993-04-01 Daimler Benz Ag Gear change transmission for car drive - has output shaft in coaxial structure directly connectable to one main shaft
DE10261990B4 (en) * 2002-03-22 2004-06-03 Audi Ag Speed-change gearbox
WO2007030840A1 (en) * 2005-09-09 2007-03-15 Johannes Jacobus Naude Transmission ratio range extension
JP5325754B2 (en) * 2009-12-11 2013-10-23 ジヤトコ株式会社 Continuously variable transmission
CN102705460A (en) * 2012-06-23 2012-10-03 郭克亚 Bevel wheel variable-speed transmission mechanism
FR3006404B1 (en) * 2013-06-04 2015-06-26 Peugeot Citroen Automobiles Sa GEARBOX SYSTEM FOR A MOTOR VEHICLE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303206A1 (en) * 1975-03-04 1976-10-01 Scientific Res Foundation Large speed range variable transmission - has belt trained around and slidable along elongate conical pulleys
EP0004412A1 (en) * 1978-01-21 1979-10-03 GKN Transmissions Limited Continuously variable transmission mechanisms

Also Published As

Publication number Publication date
FR2520826B1 (en) 1987-04-30
ES519350A0 (en) 1983-11-01
FR2520826A1 (en) 1983-08-05

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