GB975885A - Improvements in or relating to hydro-mechanical transmissions,particularly for motor vehicles - Google Patents

Improvements in or relating to hydro-mechanical transmissions,particularly for motor vehicles

Info

Publication number
GB975885A
GB975885A GB4108063A GB4108063A GB975885A GB 975885 A GB975885 A GB 975885A GB 4108063 A GB4108063 A GB 4108063A GB 4108063 A GB4108063 A GB 4108063A GB 975885 A GB975885 A GB 975885A
Authority
GB
United Kingdom
Prior art keywords
clutch
gear
ratio
established
sun
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
GB4108063A
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of GB975885A publication Critical patent/GB975885A/en
Expired 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
    • F16H47/085—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion with at least two mechanical connections between the hydraulic device and the mechanical transmissions
    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

975,885. Hydromechanical change-speed gear. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Oct. 17, 1963 [Oct. 26, 1962], No. 41080/63. Heading F2D. An hydromechanical change-speed gear for a motor car &c., comprising a torque converter in combination with a planetary change-speed gear, gives three forward ratios and a converter by-pass clutch can be so controlled that any of the ratios is established through an allmechanical path. Additionally, the highest ratio may optionally be obtained with a splittorque, part-mechanical, part-hydrodynamic power path. The first ratio is established from an input shaft 1 through the turbine T of a torque converter, having the usual one-way detent mounted reactor L, to a hollow shaft 7 and a clutch A engaged to transmit drive to a sun-gear 5b. Planet pinions 5f journalled in a carrier 5d mesh the rear sun-gear 56 and also mesh planet pinions 5e meshing a front sun-gear 5a, a one-way detent 11 stationing the carrier so that drive is transmitted through a ring gear 5c to an output shaft 6. Engagemen t of a torque converter by-pass clutch A<SP>1</SP> enables an allmechanical first ratio to be obtained. Second ratio is established by maintaining the front sun-gear clutch A engaged while applying two parallel-arranged brakes C, C<SP>1</SP> to station the front sun-gear 5a. The brake C<SP>1</SP> includes a one-way clutch 10, so that on disengagement of the parallel brake C, the next ratio can be established without a break in the transmission of power. As for first ratio, an all-mechanical transmission of power is obtained by engagement of the converter by-pass clutch A<SP>1</SP>. Third ratio is established by disengaging the brakes C, C<SP>1</SP>, maintaining the clutch A engaged, and also engaging a clutch B to lock-up the planetary gearing. Transmission of power through the torque converter is again controlled by the by-pass clutch A<SP>1</SP>. Additionally, a split torque third ratio can be established by engaging the by-pass clutch A<SP>1</SP>, disengaging the clutch A and maintaining the clutch B engaged. The rear sun-gear 5b is then driven directly through the by-pass clutch A<SP>1</SP> while the front sun-gear 5a is driven through the torque converter. Reverse is established by engaging a brake D to station the carrier 5d, while also engaging the clutch B.
GB4108063A 1962-10-26 1963-10-17 Improvements in or relating to hydro-mechanical transmissions,particularly for motor vehicles Expired GB975885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ9739A DE1214967B (en) 1962-10-26 1962-10-26 Hydromechanical gearbox, especially for motor vehicles

Publications (1)

Publication Number Publication Date
GB975885A true GB975885A (en) 1964-11-25

Family

ID=7621027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4108063A Expired GB975885A (en) 1962-10-26 1963-10-17 Improvements in or relating to hydro-mechanical transmissions,particularly for motor vehicles

Country Status (2)

Country Link
DE (1) DE1214967B (en)
GB (1) GB975885A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821008A1 (en) * 1977-05-13 1978-12-07 Nissan Motor SPEED MANUAL TRANSMISSION

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743583A1 (en) * 1977-09-28 1979-04-05 Volkswagenwerk Ag HYDRODYNAMIC-MECHANICAL TRANSMISSION FOR MOTOR VEHICLES
DE3522184A1 (en) * 1985-06-21 1987-01-02 Volkswagen Ag SHIFTING DEVICE FOR A HYDRODYNAMIC MECHANICAL GEARBOX
DE4422444C2 (en) * 1994-06-29 1996-10-02 Voith Turbo Kg Hydrodynamic-mechanical compound transmission for driving variable-speed work machines and methods for operating
DE102008027946A1 (en) * 2008-06-12 2009-12-24 Voith Patent Gmbh Automatic transmission with a drive range, a hydrodynamic converter, and an output range and method for braking at high speeds
DE102013209567B4 (en) * 2013-05-23 2017-10-19 Zf Friedrichshafen Ag Starting unit for the intermediate connection between a prime mover and a transmission of a motor vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694949A (en) * 1950-11-01 1954-11-23 Packard Motor Car Co Transmission
US2821867A (en) * 1952-03-13 1958-02-04 Borg Warner Two path power flow turbine transmission
FR1222139A (en) * 1958-04-24 1960-06-08 Zahnradfabrik Friedrichshafen Transmission mechanism applicable in particular to motor vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821008A1 (en) * 1977-05-13 1978-12-07 Nissan Motor SPEED MANUAL TRANSMISSION
US4282773A (en) 1977-05-13 1981-08-11 Nissan Motor Company, Limited Change-speed transmission

Also Published As

Publication number Publication date
DE1214967B (en) 1966-04-21

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