FR2341077A1 - Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others - Google Patents

Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others

Info

Publication number
FR2341077A1
FR2341077A1 FR7603894A FR7603894A FR2341077A1 FR 2341077 A1 FR2341077 A1 FR 2341077A1 FR 7603894 A FR7603894 A FR 7603894A FR 7603894 A FR7603894 A FR 7603894A FR 2341077 A1 FR2341077 A1 FR 2341077A1
Authority
FR
France
Prior art keywords
gear pumps
power transmission
hydraulic power
fluid communication
pump
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
FR7603894A
Other languages
French (fr)
Other versions
FR2341077B1 (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.)
Secmafer SA
Original Assignee
Secmafer SA
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 Secmafer SA filed Critical Secmafer SA
Priority to FR7603894A priority Critical patent/FR2341077A1/en
Publication of FR2341077A1 publication Critical patent/FR2341077A1/en
Application granted granted Critical
Publication of FR2341077B1 publication Critical patent/FR2341077B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/3205—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration acceleration
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/456—Control of the balance of torque or speed between pumps or motors

Landscapes

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

Abstract

The hydraulic power transmission for a railway locomotive has an engine (1) driving a pump (3) which supplies two gear pumps (7a, 7b). the gear pumps are connected to each other so that they run at the same speed. The hydraulic fluid from each gear pump (7a, 7b) flows to a group of three gear pumps (9, 9') with each pump connected to a single wheel. If, for example, the wheel (12a) begins to spin there is a pressure drop in the line (10a). This causes an increase in the pressure difference across the gear pump (9a) which then acts as a motor and drives the other two gear pumps (9). The principle can be applied equally well to road vehicles.
FR7603894A 1976-02-12 1976-02-12 Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others Granted FR2341077A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7603894A FR2341077A1 (en) 1976-02-12 1976-02-12 Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7603894A FR2341077A1 (en) 1976-02-12 1976-02-12 Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others

Publications (2)

Publication Number Publication Date
FR2341077A1 true FR2341077A1 (en) 1977-09-09
FR2341077B1 FR2341077B1 (en) 1979-06-15

Family

ID=9169042

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603894A Granted FR2341077A1 (en) 1976-02-12 1976-02-12 Hydraulic power transmission for rail vehicles - has two interconnected gear pumps, each in fluid communication with three others

Country Status (1)

Country Link
FR (1) FR2341077A1 (en)

Also Published As

Publication number Publication date
FR2341077B1 (en) 1979-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse