GB676634A - Differential change-speed gear - Google Patents

Differential change-speed gear

Info

Publication number
GB676634A
GB676634A GB14519/49A GB1451949A GB676634A GB 676634 A GB676634 A GB 676634A GB 14519/49 A GB14519/49 A GB 14519/49A GB 1451949 A GB1451949 A GB 1451949A GB 676634 A GB676634 A GB 676634A
Authority
GB
United Kingdom
Prior art keywords
brake
rotation
band
piston
lever
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
GB14519/49A
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.)
BOITE AUTOMATIQUE PLANETAIRE B
Original Assignee
BOITE AUTOMATIQUE PLANETAIRE B
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 BOITE AUTOMATIQUE PLANETAIRE B filed Critical BOITE AUTOMATIQUE PLANETAIRE B
Publication of GB676634A publication Critical patent/GB676634A/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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3003—Band brake actuating mechanisms
    • 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
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/721—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/14—Inputs being a function of torque or torque demand
    • F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • F16H59/40—Output shaft speed
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • 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
    • F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
    • F16H2718/08—Control dependent on speed
    • F16H2718/10—Control dependent on speed only the toothed wheels remain engaged

Landscapes

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

Abstract

676,634. Variable-speed gear. BOITE AUTOMATIQUE PLANETAIRE B.A.P. May 30,1949 [June 1, 1948], No. 14519/49. Class 80 (ii). [Also in Group XXXIV] A planetary two-speed gear for a vehicle, crane or machine-tool, controlled automatically by vehicle-speed, engine fuel-supply position and a supervisory manual control, giving transitional up and down shift without power interruption, comprises a direct-drive friction disc clutch 9, between an input sun-wheel shaft 7 and a freely mounted reaction planet-carrier 10; and a reduced-drive band-brake 19 which is at all times effective to prevent backward rotation of the planet-carrier (so that shifts occur without power interruption), but is, on completion of a downshift, tightened thereon to prevent rotation in both directions to provide a bidirectional reduced drive. Hydraulic pressure from a single input-driven pump 17 actuates the clutch 9 through an annular piston 8, and the brake 19 through a piston 28, under control of a rotary selector-valve 16 on a spindle 38 actuated, through a toothed segment 39 and pushrod 36, conjointly by a centrifugal governor 32 driven by an output sun-wheel shaft 13; by a control for the engine fuel-supply (providing torque-response), which acts through a link 35a, bellcrank and sleeve 29 to vary the loading of the governor-spring 30; and by a manual lever 41, which can be set to limit the travel of stops 40 on the segment 39, and can also be used for enforcing a shift in opposition to the governor. The ends of the brake-band 19 are attached to the opposite ends of a two-armed lever 22, which turns on an off-centre fulcrum pivot 23 slidable in a radial slot in a complementary brake-shoe 21, which is restrained against rotation in both directions by a torque-arm 18. In the pressure-less condition shown in Fig. 2, clockwise rotation of the underlying drum 10 causes the unequal arms of the lever 22 to contract the band 19 onto the drum and prevent its rotation, whereas anticlockwise rotation causes release of the drum. Application of oil-pressure to the brake piston 28, which occurs simultaneously with exhaust of the direct-drive clutch-piston 8 for downshift, causes a cam-end of a lever 24, also fulcrummed at 23, to press radially inwards on the brake-shoe 21, forcing out the fulcrum 23 to tighten the brake-band 19 for both directions of rotation. Two or more such gears may be arranged in series to provide additional ratios, and the gear may be driven through a fluid-coupling.
GB14519/49A 1948-06-01 1949-05-30 Differential change-speed gear Expired GB676634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR279142X 1948-06-01

Publications (1)

Publication Number Publication Date
GB676634A true GB676634A (en) 1952-07-30

Family

ID=8886633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14519/49A Expired GB676634A (en) 1948-06-01 1949-05-30 Differential change-speed gear

Country Status (4)

Country Link
BE (1) BE489368A (en)
CH (1) CH279142A (en)
DE (1) DE802605C (en)
GB (1) GB676634A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737058A (en) * 1952-05-13 1956-03-06 Puls Erich Friedrich Automatic control device for the gear transmission of an internal combustion engine
US10962113B2 (en) 2016-11-25 2021-03-30 Schaeffler Technologies AG & Co. KG Parking lock for a motor vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1073876B (en) * 1960-01-21 Zahnradfabrik Friedrichshafen Aktiengesellschaft, Friedrichshafen Multi-step change gear in a group arrangement with an upstream hydrodynamic torque converter, especially for motor vehicles
DE1130239B (en) * 1952-04-30 1962-05-24 Equip Minier S A R L Soc D Depending on the transmitted torque, starting and stopping gear for working machines
DE1029687B (en) * 1956-08-09 1958-05-08 Jean Michel Vernhes Planetary gear, especially for vehicles
DE1198638B (en) * 1963-03-29 1965-08-12 Gotha Getriebewerk Epicyclic gear with hydraulic brake and torque measuring device
DE102010062665A1 (en) * 2010-12-08 2012-06-14 Zf Friedrichshafen Ag Device for coupling at least one rotatably designed component with a component of a transmission device formed fixed to the housing
US10704632B2 (en) 2018-09-21 2020-07-07 Global Technology Operations Llc Transmission clutch assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737058A (en) * 1952-05-13 1956-03-06 Puls Erich Friedrich Automatic control device for the gear transmission of an internal combustion engine
US10962113B2 (en) 2016-11-25 2021-03-30 Schaeffler Technologies AG & Co. KG Parking lock for a motor vehicle

Also Published As

Publication number Publication date
CH279142A (en) 1951-11-15
DE802605C (en) 1951-02-15
BE489368A (en)

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