GB702809A - Improvements in or relating to electromagnetic change-speed gears - Google Patents

Improvements in or relating to electromagnetic change-speed gears

Info

Publication number
GB702809A
GB702809A GB2598/52A GB259852A GB702809A GB 702809 A GB702809 A GB 702809A GB 2598/52 A GB2598/52 A GB 2598/52A GB 259852 A GB259852 A GB 259852A GB 702809 A GB702809 A GB 702809A
Authority
GB
United Kingdom
Prior art keywords
gear
shaft
electromagnets
output shaft
magnets
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
GB2598/52A
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.)
Valeo SE
Original Assignee
Francaise du Ferodo 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 Francaise du Ferodo SA filed Critical Francaise du Ferodo SA
Publication of GB702809A publication Critical patent/GB702809A/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
    • 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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0202—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 characterised by the signals used the signals being electric
    • 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
    • F16H2716/00—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices
    • F16H2716/08—Control devices for speed-change mechanisms of planetary gearings, with toothed wheels remaining engaged, e.g. also for devices to simplify the control or for synchronising devices combined with control devices the control being electric

Abstract

702,809. Variable-speed gearing. SOC. ANON. FRANCAISE DU FERODO. Jan. 31, 1952 [Feb. 19, 1951], No. 2598/52. Class 80 (2) A change speed gear having epicyclic trains controlled by electromagnets is arranged so that in the neutral position of the gears at least one of the electromagnets is energized so that with the input shaft rotating and the output shaft stationary all the main rotative members of the gear are rotating except those rigid with the output shaft. Thus, when passing from the neutral to first speed, the inertia effects of the gear members balance one another and this avoids sudden torque reaction on the output shaft. As shown, two epicyclic trains are in series between input and output shafts 1, 5. Electromagnets 4, 7 are fixed to the shafts 1, 5 and electromagnets 3, 6 are fixed to the casing 12. The first train has planets 16 meshing a sun 13 on the shaft 1 and internal teeth 2 on a disc 14 between magnets 3, 4. The second train has planets 11 carried by the shaft 5 meshing a sun 19 on a disc 10 between the magnets 6, 7 and an internal gear 17 on the planet carrier of the first train. Four gear ratios are obtained, two of the four magnets being energized at each ratio. When the gear lever is in neutral position it engages contacts 8, 9 to energize magnet 4 so that with the output shaft 5 stationary rotation of the shaft 1 causes all moving parts of the gearing to rotate, the disc 10 rotating in the opposite direction to the other members.
GB2598/52A 1951-02-19 1952-01-31 Improvements in or relating to electromagnetic change-speed gears Expired GB702809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR702809X 1951-02-19

Publications (1)

Publication Number Publication Date
GB702809A true GB702809A (en) 1954-01-20

Family

ID=9059477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2598/52A Expired GB702809A (en) 1951-02-19 1952-01-31 Improvements in or relating to electromagnetic change-speed gears

Country Status (1)

Country Link
GB (1) GB702809A (en)

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