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WO2006108109A3 - Hydromechanical continuously variable transmission - Google Patents

Hydromechanical continuously variable transmission Download PDF

Info

Publication number
WO2006108109A3
WO2006108109A3 PCT/US2006/012921 US2006012921W WO2006108109A3 WO 2006108109 A3 WO2006108109 A3 WO 2006108109A3 US 2006012921 W US2006012921 W US 2006012921W WO 2006108109 A3 WO2006108109 A3 WO 2006108109A3
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
motor
pump
input
continuously variable
Prior art date
Application number
PCT/US2006/012921
Other languages
French (fr)
Other versions
WO2006108109A2 (en
Inventor
Lawrence R Folsom
Clive Tucker
Original Assignee
Folsom Technologies Inc
Lawrence R Folsom
Clive Tucker
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 Folsom Technologies Inc, Lawrence R Folsom, Clive Tucker filed Critical Folsom Technologies Inc
Publication of WO2006108109A2 publication Critical patent/WO2006108109A2/en
Publication of WO2006108109A3 publication Critical patent/WO2006108109A3/en

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
    • F16H2037/0866—Power split variators with distributing differentials, with the output of the CVT connected or connectable to the output shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Power Transmission Devices (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A hydromechanical continuously variable power transmission (Figs. 1 and 2) for converting rotating mechanical power at one combination of rotational velocity and torque to another combination of rotational velocity and torque over a continuous range, inclu a hydraulic pump (30), operatively driven by an input shaft (50), and a hydraulic motor (35) operatively driving an output shaft (51). The hydraulic pump (30) and hydraulic motor (35) are coupled together mechanically through a pair of planet sets (40, 45), and are coupled together hydraulically through a manifold (52), such that hydraulic fluid pressurized by said pump (30) drives the motor (35 and spent fluid from the motor (35) is cycled back to the pump (30) where it is re-pressurized. Both planet sets (40, 45) are arranged axially with the input shaft (50) and the output shaft (51), and the hydraulic pump (30) and hydraulic motor (35) are arranged in seri with each other on opposite sides of the manifold (52), and parallel to the input and output shafts (50, 51), thereby optimizing the us space and keeping the overall length of the transmission to a minimum, and minimizing required lengths of said input and output shafts (50, 51).
PCT/US2006/012921 2005-04-05 2006-04-05 Hydromechanical continuously variable transmission WO2006108109A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66873005P 2005-04-05 2005-04-05
US60/668,730 2005-04-05

Publications (2)

Publication Number Publication Date
WO2006108109A2 WO2006108109A2 (en) 2006-10-12
WO2006108109A3 true WO2006108109A3 (en) 2006-12-21

Family

ID=37074101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/012921 WO2006108109A2 (en) 2005-04-05 2006-04-05 Hydromechanical continuously variable transmission

Country Status (1)

Country Link
WO (1) WO2006108109A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11098792B2 (en) 2019-09-30 2021-08-24 Caterpillar Inc. Transmission system for machine
CN113251127B (en) * 2021-04-06 2022-07-01 上海宇航系统工程研究所 Landing lamp driving mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897697A (en) * 1974-02-01 1975-08-05 Caterpillar Tractor Co Infinitely variable drive ratio hydro-mechanical transmission for vehicles or the like
US5683322A (en) * 1993-04-21 1997-11-04 Meyerle; Michael Continuous hydrostatic-mechanical branch power split transmission particularly for power vehicles
US6001038A (en) * 1995-12-27 1999-12-14 Steyr-Daimler-Puch Aktiengesellschaft Method of controlling a power distribution hydromechanical branched transmission in uncertain gear positions
US6007444A (en) * 1996-03-12 1999-12-28 Daikin Industries, Ltd. Hydromechanical transmission
US7063638B2 (en) * 2000-12-19 2006-06-20 Cnh America Llc Continuously variable hydro-mechanical transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897697A (en) * 1974-02-01 1975-08-05 Caterpillar Tractor Co Infinitely variable drive ratio hydro-mechanical transmission for vehicles or the like
US5683322A (en) * 1993-04-21 1997-11-04 Meyerle; Michael Continuous hydrostatic-mechanical branch power split transmission particularly for power vehicles
US6001038A (en) * 1995-12-27 1999-12-14 Steyr-Daimler-Puch Aktiengesellschaft Method of controlling a power distribution hydromechanical branched transmission in uncertain gear positions
US6007444A (en) * 1996-03-12 1999-12-28 Daikin Industries, Ltd. Hydromechanical transmission
US7063638B2 (en) * 2000-12-19 2006-06-20 Cnh America Llc Continuously variable hydro-mechanical transmission

Also Published As

Publication number Publication date
WO2006108109A2 (en) 2006-10-12

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