[go: up one dir, main page]

GB1423125A - Mechanical/hydraulic transmission system - Google Patents

Mechanical/hydraulic transmission system

Info

Publication number
GB1423125A
GB1423125A GB3108674A GB3108674A GB1423125A GB 1423125 A GB1423125 A GB 1423125A GB 3108674 A GB3108674 A GB 3108674A GB 3108674 A GB3108674 A GB 3108674A GB 1423125 A GB1423125 A GB 1423125A
Authority
GB
United Kingdom
Prior art keywords
machine
shaft
displacement
variable
brake
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
GB3108674A
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.)
Hydromatik GmbH
Original Assignee
Hydromatik GmbH
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 Hydromatik GmbH filed Critical Hydromatik GmbH
Publication of GB1423125A publication Critical patent/GB1423125A/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
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
    • 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
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H2037/088—Power-split transmissions with summing differentials, with the input of the CVT connected or connectable to the input shaft

Landscapes

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

Abstract

1423125 Variable-speed gearing HYDROMATIK GmbH 12 July 1974 [24 July 1973] 31086/74 Heading F2D A continuously variable transmission system operable in a first mode, in which power is transmitted wholly through hydraulic means, and in a second mode in which power transmission is divided between the hydraulic means and mechanical gearing comprises, in one form, an input shaft 10 geared to a variable displacement hydraulic machine 201 and to a member 13 rotatable relatively to a shaft 32 which is geared to an output shaft 11, and a variable displacement hydraulic machine 202 connected hydraulically to the machine 201 and mechanically to a shaft 16 with sun wheels 25, 28. The displacement of machine 201 is variable in positive and negative senses from a neutral or zero displacement condition, and that of the machine 202 is variable between maximum and minimum displacement in one sense only. For operation in the first mode the machine 201 is set to zero displacement, 202 to maximum displacement, a clutch 14 is disengaged, and a positive brake 15 is applied to prevent rotation of a planet carrier 31. As the machine 201, now acting as a pump, is adjusted towards maximum displacement in either sense, corresponding to forward or reverse rotation of the output shaft 11, power is transmitted by the machine 202, acting as a motor, through the sun wheel 28, planet wheels 29 held against orbiting by the brake 15, and ring gear 30 which is fixed to the shaft 32. Maximum output speed in this mode is achieved when 201, 202 are at their maximum and minimum displacements respectively. To increase the output speed in the forward direction, the brake 15 is released and the clutch 14 engaged, such change-over being triggered, e.g. by a switching device 17. Power is now transmitted in part mechanically through the clutch 14, ring gear 27 and planets 26 carried by the ring gear 30 fixed to the shaft 32, and in part through the ring gear 30, planets 29 and sun wheel 28 to the machine 202, which now acts as a pump, and 201, acting as a motor. Output shaft speed is increased further by adjustment of 201 through its zero displacement condition to its maximum displacement in the opposite sense, when it again functions as a pump and 202 functions as a motor. A one-way clutch may take the place of the brake 15. A modification has a different arrangement of mechanical gearing, including intermeshing plants, one sun wheel on the shaft connected to the machine 202, a second sun wheel on a shaft connectible by a clutch with the wheel 22, and a brake acting on a ring gear.
GB3108674A 1973-07-24 1974-07-12 Mechanical/hydraulic transmission system Expired GB1423125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732337627 DE2337627C2 (en) 1973-07-24 1973-07-24 Infinitely adjustable mechanical-hydrostatic superimposition gear

Publications (1)

Publication Number Publication Date
GB1423125A true GB1423125A (en) 1976-01-28

Family

ID=5887868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3108674A Expired GB1423125A (en) 1973-07-24 1974-07-12 Mechanical/hydraulic transmission system

Country Status (5)

Country Link
JP (1) JPS5043365A (en)
DE (1) DE2337627C2 (en)
FR (1) FR2238873A1 (en)
GB (1) GB1423125A (en)
IT (1) IT1016665B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306467A (en) 1977-08-18 1981-12-22 Sundstrand Corporation Hydromechanical transmissions
US4341131A (en) 1977-08-18 1982-07-27 Sundstrand Corporation Hydromechanical transmissions
EP0045022A3 (en) * 1980-07-25 1983-04-27 Deere & Company Hydro-mechanical transmission
US20130316874A1 (en) * 2012-05-24 2013-11-28 Poclain Hydraulics Industrie Hydraulic apparatus comprising an improved assembly of a hydraulic machine and a clutch

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001714A (en) * 1977-08-01 1979-02-07 Sundstrand Corp Hydromechanical transmissions
EP0074210A1 (en) * 1981-08-26 1983-03-16 Harold Henry Anderson Improved variable speed transmission
JPS61274168A (en) * 1985-02-19 1986-12-04 フリ−ドリヒ・ヤルコウ Displacement gear for torque division composite output changing at non-stage
DE102004053254B3 (en) * 2004-11-04 2006-06-01 Lohmann & Stolterfoht Gmbh Gear arrangement with gear means for speed superposition
DE102007017176A1 (en) * 2007-04-12 2008-10-16 Zf Friedrichshafen Ag Hydrostatic-mechanical power branching gear used in an agricultural vehicle provides a continuous rearward movement via a driven unit of the hydrostatic unit and a continuous forward movement via the driven unit of the summation gear
CH701465B1 (en) 2009-07-07 2013-03-15 Mali Holding Ag Vehicle with a steering by the non-pivotable wheels as well as methods for operating such a vehicle.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306467A (en) 1977-08-18 1981-12-22 Sundstrand Corporation Hydromechanical transmissions
US4341131A (en) 1977-08-18 1982-07-27 Sundstrand Corporation Hydromechanical transmissions
EP0045022A3 (en) * 1980-07-25 1983-04-27 Deere & Company Hydro-mechanical transmission
US20130316874A1 (en) * 2012-05-24 2013-11-28 Poclain Hydraulics Industrie Hydraulic apparatus comprising an improved assembly of a hydraulic machine and a clutch
US9505303B2 (en) * 2012-05-24 2016-11-29 Poclain Hydraulics Industrie Hydraulic apparatus comprising an improved assembly of a hydraulic machine and a clutch

Also Published As

Publication number Publication date
DE2337627B1 (en) 1974-06-20
JPS5043365A (en) 1975-04-19
FR2238873A1 (en) 1975-02-21
DE2337627C2 (en) 1975-02-06
IT1016665B (en) 1977-06-20

Similar Documents

Publication Publication Date Title
US3596535A (en) Transmission providing hydrostatic drive and hydromechanical drive
US3492891A (en) Single speed range input-split-power drive,multispeed range compound-split-power drive,power train
US3772939A (en) Three-speed split torque transmission
GB1489317A (en) Compound steering transmission systems for fully tracked vehicles
US3575066A (en) Transmission
US3603176A (en) Transmission
CS49991A3 (en) Gearing with variable gear ratio
GB1438297A (en) Hydromechanical steering transmission
GB923479A (en) Improvements in or relating to hydrostatic power transmissions
US3748924A (en) Hydrostatic transmission and method of transmitting power therethrough
GB1364962A (en) Power transmission
GB1423125A (en) Mechanical/hydraulic transmission system
GB1458026A (en) Synchronously shiftable dual range planetary transmission with coaxial input shafts
GB1454702A (en) Transmission
GB1467418A (en) Multiple speed range transmission
GB1131068A (en) Improvements in or relating to hydrostatically operated axial piston drive mechanisms
GB1415523A (en) Transmission assembly
US3027780A (en) Transmission
US3529492A (en) Power train having a single input,dual output with mechanical and hydrostatic-mechanical drive
US4014222A (en) Variable speed and direction transmission prime mover system
GB1093278A (en) Hydrostatic fluid transmission gear
US3763718A (en) Hydromechanical transmission
GB1109043A (en) A variable speed hydro-mechanical transmission mechanism especially suitable for heavy vehicles
GB1071112A (en) Improvements in or relating to variable speed transmission systems
US4860613A (en) Steer-by-driving transmission with ground speed control

Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed