GB2456790B - Automatic transmission with a pair of Ravigneaux gearsets - Google Patents

Automatic transmission with a pair of Ravigneaux gearsets

Info

Publication number
GB2456790B
GB2456790B GB0801238A GB0801238A GB2456790B GB 2456790 B GB2456790 B GB 2456790B GB 0801238 A GB0801238 A GB 0801238A GB 0801238 A GB0801238 A GB 0801238A GB 2456790 B GB2456790 B GB 2456790B
Authority
GB
United Kingdom
Prior art keywords
pair
automatic transmission
gearsets
ravigneaux
ravigneaux gearsets
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 - Fee Related
Application number
GB0801238A
Other versions
GB2456790A (en
GB0801238D0 (en
Inventor
Matthieu Rihn
Herve Schreibeer
Julien Ensminger
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to GB0801238A priority Critical patent/GB2456790B/en
Publication of GB0801238D0 publication Critical patent/GB0801238D0/en
Publication of GB2456790A publication Critical patent/GB2456790A/en
Application granted granted Critical
Publication of GB2456790B publication Critical patent/GB2456790B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • F16H3/663—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with conveying rotary motion between axially spaced orbital gears, e.g. RAVIGNEAUX
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/006—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising eight forward speeds
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/202—Transmissions using gears with orbital motion characterised by the type of Ravigneaux set
    • F16H2200/2025—Transmissions using gears with orbital motion characterised by the type of Ravigneaux set using a Ravigneaux set with 5 connections
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2097—Transmissions using gears with orbital motion comprising an orbital gear set member permanently connected to the housing, e.g. a sun wheel permanently connected to the housing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
GB0801238A 2008-01-23 2008-01-23 Automatic transmission with a pair of Ravigneaux gearsets Expired - Fee Related GB2456790B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0801238A GB2456790B (en) 2008-01-23 2008-01-23 Automatic transmission with a pair of Ravigneaux gearsets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0801238A GB2456790B (en) 2008-01-23 2008-01-23 Automatic transmission with a pair of Ravigneaux gearsets

Publications (3)

Publication Number Publication Date
GB0801238D0 GB0801238D0 (en) 2008-02-27
GB2456790A GB2456790A (en) 2009-07-29
GB2456790B true GB2456790B (en) 2010-02-03

Family

ID=39166243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0801238A Expired - Fee Related GB2456790B (en) 2008-01-23 2008-01-23 Automatic transmission with a pair of Ravigneaux gearsets

Country Status (1)

Country Link
GB (1) GB2456790B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133697A (en) * 1989-05-02 1992-07-28 Nissan Motor Co., Ltd. Planetary gear system
US20020091032A1 (en) * 2001-01-09 2002-07-11 Aisin Aw Co., Ltd. Automatic transmission
GB2440347A (en) * 2006-07-27 2008-01-30 Ford Global Tech Llc Automatic transmission with two Ravigneaux gearsets arranged in series

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133697A (en) * 1989-05-02 1992-07-28 Nissan Motor Co., Ltd. Planetary gear system
US20020091032A1 (en) * 2001-01-09 2002-07-11 Aisin Aw Co., Ltd. Automatic transmission
GB2440347A (en) * 2006-07-27 2008-01-30 Ford Global Tech Llc Automatic transmission with two Ravigneaux gearsets arranged in series

Also Published As

Publication number Publication date
GB2456790A (en) 2009-07-29
GB0801238D0 (en) 2008-02-27

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Legal Events

Date Code Title Description
S30Z Assignments for licence or security reasons

Free format text: APPLICANT GM GLOBAL TECHNOLOGY OPERATIONS, INC SECURITY TO THE UNITED STATES DEPARTMENT OF THE TREASURY

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20091029 AND 20091104

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20091105 AND 20091111

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170123