FR2291888A1 - Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle - Google Patents

Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle

Info

Publication number
FR2291888A1
FR2291888A1 FR7438326A FR7438326A FR2291888A1 FR 2291888 A1 FR2291888 A1 FR 2291888A1 FR 7438326 A FR7438326 A FR 7438326A FR 7438326 A FR7438326 A FR 7438326A FR 2291888 A1 FR2291888 A1 FR 2291888A1
Authority
FR
France
Prior art keywords
hydraulic
axle
low speed
pump
transmission
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.)
Granted
Application number
FR7438326A
Other languages
French (fr)
Other versions
FR2291888B3 (en
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.)
Joshua Shaw and Sons Ltd
Original Assignee
Joshua Shaw and Sons Ltd
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 Joshua Shaw and Sons Ltd filed Critical Joshua Shaw and Sons Ltd
Priority to FR7438326A priority Critical patent/FR2291888A1/en
Publication of FR2291888A1 publication Critical patent/FR2291888A1/en
Application granted granted Critical
Publication of FR2291888B3 publication Critical patent/FR2291888B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0015—Disposition of motor in, or adjacent to, traction wheel the motor being hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/16—Axle housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/50—Improvement of
    • B60B2900/511—Sealing
    • B60B2900/5118—Sealing against oil-loss
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/15—Fork lift trucks, Industrial trucks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Motor Power Transmission Devices (AREA)

Abstract

The hydraulic transmission for the low speed, high torque vehicle, has a solid drive axle fixed to the suspension. The axle is bored with three hydraulic ducts. Two ducts serve as connecting lines from the hydraulic pump to the motors at the ends of the axle, in the hubs, while a third duct acts as a drainage duct to drain back to the pump any hydraulic fluid which may leak out of the motors, to be collected in a special housing. The hydraulic pump is bolted directly to the middle of the axle and is connected to the ducts by lateral bores. The pump is driven from the engine by a drive shaft. The system is especially suitable for fork lift trucks etc. which operate in warehouses where there cannot be any spillage of hydraulic fluid. The transmission is simple and robust.
FR7438326A 1974-11-21 1974-11-21 Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle Granted FR2291888A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7438326A FR2291888A1 (en) 1974-11-21 1974-11-21 Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7438326A FR2291888A1 (en) 1974-11-21 1974-11-21 Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle

Publications (2)

Publication Number Publication Date
FR2291888A1 true FR2291888A1 (en) 1976-06-18
FR2291888B3 FR2291888B3 (en) 1978-01-27

Family

ID=9145142

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438326A Granted FR2291888A1 (en) 1974-11-21 1974-11-21 Hydraulic transmission for low speed vehicle - with closed circuits between hydraulic hub motors and pump via duct in solid axle

Country Status (1)

Country Link
FR (1) FR2291888A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038025A1 (en) * 2014-09-12 2016-03-17 Saf-Holland Gmbh Axle unit
DE102016117818A1 (en) 2016-09-21 2018-03-22 Saf-Holland Gmbh axle system
WO2018050442A1 (en) * 2016-09-13 2018-03-22 Saf-Holland Gmbh Axle system
DE102017211426A1 (en) * 2017-07-05 2019-01-10 Audi Ag Independent suspension for a motor vehicle, in particular for a motor vehicle, and motor vehicle with such independent suspension

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016038025A1 (en) * 2014-09-12 2016-03-17 Saf-Holland Gmbh Axle unit
CN106687308A (en) * 2014-09-12 2017-05-17 塞夫霍兰德有限公司 Axle unit
US10207556B2 (en) 2014-09-12 2019-02-19 Saf-Holland Gmbh Axle unit
CN106687308B (en) * 2014-09-12 2019-05-31 塞夫霍兰德有限公司 Axle unit
WO2018050442A1 (en) * 2016-09-13 2018-03-22 Saf-Holland Gmbh Axle system
CN109922982A (en) * 2016-09-13 2019-06-21 塞夫霍兰德有限公司 Axle system
US11279174B2 (en) 2016-09-13 2022-03-22 SAF-Holland, GmbH Axle system
DE102016117818A1 (en) 2016-09-21 2018-03-22 Saf-Holland Gmbh axle system
DE102016117818B4 (en) 2016-09-21 2018-05-03 Saf-Holland Gmbh axle system
DE102017211426A1 (en) * 2017-07-05 2019-01-10 Audi Ag Independent suspension for a motor vehicle, in particular for a motor vehicle, and motor vehicle with such independent suspension
DE102017211426B4 (en) 2017-07-05 2019-05-16 Audi Ag Independent suspension for a motor vehicle, in particular for a motor vehicle, and motor vehicle with such independent suspension

Also Published As

Publication number Publication date
FR2291888B3 (en) 1978-01-27

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Legal Events

Date Code Title Description
TP Transmission of property