GB734530A - Four speed hydraulic transmission - Google Patents

Four speed hydraulic transmission

Info

Publication number
GB734530A
GB734530A GB2913652A GB2913652A GB734530A GB 734530 A GB734530 A GB 734530A GB 2913652 A GB2913652 A GB 2913652A GB 2913652 A GB2913652 A GB 2913652A GB 734530 A GB734530 A GB 734530A
Authority
GB
United Kingdom
Prior art keywords
hydraulic unit
hydraulic
sun gear
ratio
gears
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
GB2913652A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2913652A priority Critical patent/GB734530A/en
Publication of GB734530A publication Critical patent/GB734530A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

734,530. Change-speed gearing. GILES, J. G. Nov. 16, 1953 [Nov. 18, 1952], No. 29136/52. Class 80 (2). A power transmission unit giving four velocity ratios employs planetary gearing combined with positive displacement hydraulic units, each used alternatively as a pump and motor according to the ratio selected and each having a fixed displacement capacity. As shown, a driving sun gear 6 meshes stepped planet gears 3 &c. in a carrier 1, the planets also meshing sun gears 7, 10 rotatable upon a driven shaft 15. The sun gears 7, 10 are integral with gears 9, 12 meshing gears 14, 13 transmitting drive to or from two positive displacement hydraulic units 17, 18. The hydraulic units 17, 18 may be of either the rotary or reciprocating type, and are interconnected by pipes incorporating pressure relief valves 19 and a selector valve 20. For the first ratio, the selector valve 20 is set so that the hydraulic unit 17 runs freely and the delivery ports on the hydraulic unit 18 are closed, the sun gear 7 then rotating freely and the sun gear 10 being held stationary. For the second ratio, the hydraulic unit 18 runs freely, the delivery ports on the hydraulic unit 17 are closed, the sun gear 10 rotates freely and the sun gear 7 is held stationary. For the third ratio, the selector valve 20 is set so that the hydraulic unit 18 pumps into the hydraulic unit 17 and both these units rotate in the same direction. For the fourth ratio, the selector valve 20 is set so that the hydraulic unit 17 acts as a motor pumping into the hydraulic unit 18; the two hydraulic units then rotate in opposite directions.
GB2913652A 1952-11-18 1952-11-18 Four speed hydraulic transmission Expired GB734530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2913652A GB734530A (en) 1952-11-18 1952-11-18 Four speed hydraulic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2913652A GB734530A (en) 1952-11-18 1952-11-18 Four speed hydraulic transmission

Publications (1)

Publication Number Publication Date
GB734530A true GB734530A (en) 1955-08-03

Family

ID=10286736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2913652A Expired GB734530A (en) 1952-11-18 1952-11-18 Four speed hydraulic transmission

Country Status (1)

Country Link
GB (1) GB734530A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1500322B1 (en) * 1964-05-08 1970-05-27 Battelle Memorial Institute Infinitely controllable planetary gear with power split
FR2433258A1 (en) * 1978-08-11 1980-03-07 Sundstrand Corp GENERATOR AND ITS DRIVING DEVICES INCORPORATED IN A MODULAR GROUP

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1500322B1 (en) * 1964-05-08 1970-05-27 Battelle Memorial Institute Infinitely controllable planetary gear with power split
FR2433258A1 (en) * 1978-08-11 1980-03-07 Sundstrand Corp GENERATOR AND ITS DRIVING DEVICES INCORPORATED IN A MODULAR GROUP

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