WO2010057282A1 - Transmission hydrostatique à variation continue - Google Patents

Transmission hydrostatique à variation continue Download PDF

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Publication number
WO2010057282A1
WO2010057282A1 PCT/BR2009/000349 BR2009000349W WO2010057282A1 WO 2010057282 A1 WO2010057282 A1 WO 2010057282A1 BR 2009000349 W BR2009000349 W BR 2009000349W WO 2010057282 A1 WO2010057282 A1 WO 2010057282A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
flow
hydraulic devices
transmission
outer component
Prior art date
Application number
PCT/BR2009/000349
Other languages
English (en)
Portuguese (pt)
Inventor
Esdras de Oliveira NUÑO
Original Assignee
Nuno Esdras De Oliveira
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 Nuno Esdras De Oliveira filed Critical Nuno Esdras De Oliveira
Priority to PCT/BR2009/000349 priority Critical patent/WO2010057282A1/fr
Publication of WO2010057282A1 publication Critical patent/WO2010057282A1/fr

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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/721—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously
    • F16H3/722—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously with a fluid throttle

Definitions

  • the present invention relates to a mechanism that performs continuously variable transmission between a power source and its application in a simple and compact manner.
  • the present invention solves most of these deficiencies by being characterized by a simple, compact, low friction, low cost system with few mechanical parts, versatility of materials that can be used in its development, versatility of formats and jobs. possible (such as transmission, clutch, brake, differential, lock / unlock system, etc.), easy use and use, minimum and maximum possible output (from 0% to 100% output of applied input torque) and easy control of this efficiency, easy implementation of additional manual and / or automatic control systems, among other features.
  • the basic principle of the present invention is the use of a closed hydraulic circuit that intermediates, continuously and precisely controlled and precisely offsetting the torque transmitted from input to output. This deviation can range from 0% to 100% of the input torque, ie from the highest transmission efficiency, where all input effort goes to the output (0% deviation), to the lowest transmission efficiency. where no input effort is passed to the output (100% deviation).
  • the present invention is a controlled closed hydraulic circuit to intermediate and a) not relieve, b) partially relieve or c) completely relieve the transmission of the torque employed at the inlet to the outlet the mechanism in a simple and compact way.
  • Figures 1 to 6 show simplified schematics of these three variations of the mechanism that may meet the characteristics required for the operation of the present invention.
  • Figures 1, 3 and 5 being cross sections and figures 2, 4 and 6 being the corresponding side views.
  • Figures 1 and 2 show a variation of the mechanism having the following characteristics: inner shaft (3) with a decentralized part (4), which holds and freely rotates a bearing or bearing (5); eight identical radially arranged hydraulic devices as indicated by elements (8, 9 and 10) secure the outside of the bearing or bearing (5) to the external component (6).
  • the decentralized part (4) causes the bearing or bearing (5) to sway within the mechanism, driving the eight hydraulic devices, compressing one and relieving others.
  • the hydraulic devices are fixed between the inner shaft (3) and the outer component (6).
  • Figures 3 and 4 show another variation of the same mechanism having the following characteristics: internal shaft (3) with a decentralized part (4), which freely supports and rotates a bearing or bearing (5); eight identical radially arranged hydraulic devices as indicated by the elements (8, 9 and 10) inserted directly into the external component (6) are free with respect to the bearing or bearing (5).
  • the decentralized part (4) causes the bearing or bearing (5) to roll on the inner wall of the outer component (6), driving the eight hydraulic devices, compressing some and relieving others.
  • the hydraulic devices are inserted in the external component (6).
  • Figures 5 and 6 show a further variation of the same mechanism having the following characteristics: external component (6) with its decentralized inner wall; eight identical radially arranged hydraulic devices as indicated by the elements (8, 9 and 10) inserted directly into the inner axis (3) are free with respect to the outer component (6).
  • external component (6) with its decentralized inner wall
  • eight identical radially arranged hydraulic devices as indicated by the elements (8, 9 and 10) inserted directly into the inner axis (3) are free with respect to the outer component (6).
  • the inner shaft (3) rotates relative to the outer component (6) its decentralized part (6) drives the eight hydraulic devices, compressing some and relieving others.
  • the hydraulic devices are inserted into the inner shaft (3).
  • the hydraulic devices have their inner chambers interconnected and unified by a common chamber (16) through ducts, tubes or hoses as shown in (7). ;
  • This common chamber (16) exchanges hydraulicly between the eight hydraulic devices, but in a controlled manner by the rod (17) as it moves into or out of the exhaust chamber (15), which contains a spring.
  • the operation of the torque transmission between the inner shaft (3) and the outer member (6) is the same as described below:
  • control of the hydraulic flow common to the eight hydraulic devices shall be of linear progression, in order to provide equally linear control of the transmission efficiency, since this efficiency is inversely proportional to the hydraulic flow between the eight hydraulic devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

Un axe intérieur (3) communique mécaniquement avec un élément extérieur (6) par l'intermédiaire de dispositifs hydrauliques (8, 9 et 10), tous ces dispositifs hydrauliques partageant leurs chambres de poussée (8) par l'intermédiaire de tubes de liaison (7) constituant un circuit hydraulique fermé. Le flux hydraulique commun des dispositifs hydrauliques peut être régulé avec précision entre un état complètement bloqué et un débit totalement libre. Lorsque le flux hydraulique entre les dispositifs hydrauliques est complètement bloqué, le rendement de la transmission est maximal étant donné que les dispositifs hydrauliques sont verrouillés, l'axe intérieur et l'élément extérieur tournant alors comme s'il n'y avait qu'un seul axe. Lorsque le flux hydraulique entre les dispositifs hydrauliques est libéré progressivement, l'axe intérieur tourne plus vite que l'élément extérieur. Une partie du couple entre l'axe intérieur et l'élément extérieur est absorbée par le flux hydraulique libéré. Ainsi, la régulation du flux hydraulique entre les dispositifs hydrauliques permet une régulation précise du rendement de la transmission. Lorsque le flux hydraulique entre les dispositifs hydrauliques est totalement libre, le rendement de la transmission est minimal et aucun couple n'est transmis entre l'axe intérieur et l'élément extérieur.
PCT/BR2009/000349 2008-11-18 2009-10-20 Transmission hydrostatique à variation continue WO2010057282A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2009/000349 WO2010057282A1 (fr) 2008-11-18 2009-10-20 Transmission hydrostatique à variation continue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR018080071399 2008-11-18
PCT/BR2009/000349 WO2010057282A1 (fr) 2008-11-18 2009-10-20 Transmission hydrostatique à variation continue

Publications (1)

Publication Number Publication Date
WO2010057282A1 true WO2010057282A1 (fr) 2010-05-27

Family

ID=42197774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2009/000349 WO2010057282A1 (fr) 2008-11-18 2009-10-20 Transmission hydrostatique à variation continue

Country Status (1)

Country Link
WO (1) WO2010057282A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358443A (en) * 1965-03-15 1967-12-19 Soya Rederi Ab Hydrostatic transmission
US3368425A (en) * 1965-05-27 1968-02-13 Gen Electric Steering and driving power system
US3973400A (en) * 1975-09-04 1976-08-10 Deere & Company Hydrostatic transmission
CA2225564A1 (fr) * 1996-12-23 1998-06-23 Tecumseh Products Company Boite-pont munie d'une transmission hydrostatique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358443A (en) * 1965-03-15 1967-12-19 Soya Rederi Ab Hydrostatic transmission
US3368425A (en) * 1965-05-27 1968-02-13 Gen Electric Steering and driving power system
US3973400A (en) * 1975-09-04 1976-08-10 Deere & Company Hydrostatic transmission
CA2225564A1 (fr) * 1996-12-23 1998-06-23 Tecumseh Products Company Boite-pont munie d'une transmission hydrostatique

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