FR2237791A1 - Differential drive for gas turbine locomotives - uses oil pump effect to prevent reverse rotation using three meshed pinion pairs - Google Patents

Differential drive for gas turbine locomotives - uses oil pump effect to prevent reverse rotation using three meshed pinion pairs

Info

Publication number
FR2237791A1
FR2237791A1 FR7424661A FR7424661A FR2237791A1 FR 2237791 A1 FR2237791 A1 FR 2237791A1 FR 7424661 A FR7424661 A FR 7424661A FR 7424661 A FR7424661 A FR 7424661A FR 2237791 A1 FR2237791 A1 FR 2237791A1
Authority
FR
France
Prior art keywords
reverse rotation
gas turbine
oil pump
differential drive
prevent reverse
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
FR7424661A
Other languages
French (fr)
Other versions
FR2237791B3 (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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of FR2237791A1 publication Critical patent/FR2237791A1/en
Application granted granted Critical
Publication of FR2237791B3 publication Critical patent/FR2237791B3/fr
Granted 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
    • B61C9/28—Transmission systems in or for locomotives or motor railcars with rotary prime movers, e.g. turbines
    • B61C9/30—Transmission systems in or for locomotives or motor railcars with rotary prime movers, e.g. turbines mechanical
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0493—Gearings with spur or bevel gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Retarders (AREA)

Abstract

The differential gear employs sun and planet pinions of relatively small dia. which under high torque can cause reversal of rotation of one of the shafts, in differentials of this type. This is obviated by the supply of oil through a hole in the central shaft which is fed to the space between meshing planet gears. When relative motion occurs between these pairs the oil supplied from the central shaft is pumped across the gears creating a pressure load on the gear teeth and preventing reverse rotation of either shaft.
FR7424661A 1973-07-17 1974-07-16 Differential drive for gas turbine locomotives - uses oil pump effect to prevent reverse rotation using three meshed pinion pairs Granted FR2237791A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3388673 1973-07-17

Publications (2)

Publication Number Publication Date
FR2237791A1 true FR2237791A1 (en) 1975-02-14
FR2237791B3 FR2237791B3 (en) 1977-05-20

Family

ID=10358733

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7424661A Granted FR2237791A1 (en) 1973-07-17 1974-07-16 Differential drive for gas turbine locomotives - uses oil pump effect to prevent reverse rotation using three meshed pinion pairs

Country Status (4)

Country Link
JP (1) JPS5049562A (en)
AU (1) AU7128574A (en)
DE (1) DE2433990A1 (en)
FR (1) FR2237791A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986002420A1 (en) * 1984-10-19 1986-04-24 Barry Wallace Coombs Limited slip differential
JPS62118141A (en) * 1985-11-15 1987-05-29 Kazuo Mentani Differential gear having slip limiting function
JPS62204097A (en) * 1986-03-04 1987-09-08 ザ　テイムケン　カンパニ− Lubricating device
EP0347165B1 (en) * 1988-06-15 1993-11-24 Group Lotus Limited Differential unit

Also Published As

Publication number Publication date
JPS5049562A (en) 1975-05-02
DE2433990A1 (en) 1975-02-13
AU7128574A (en) 1976-01-22
FR2237791B3 (en) 1977-05-20

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Legal Events

Date Code Title Description
ST Notification of lapse