WO2003025426A2 - Transmission ratio change unit having permanent stepped meshing gears - Google Patents
Transmission ratio change unit having permanent stepped meshing gears Download PDFInfo
- Publication number
- WO2003025426A2 WO2003025426A2 PCT/PL2002/000061 PL0200061W WO03025426A2 WO 2003025426 A2 WO2003025426 A2 WO 2003025426A2 PL 0200061 W PL0200061 W PL 0200061W WO 03025426 A2 WO03025426 A2 WO 03025426A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- shaft
- clutch
- permanent
- outline
- Prior art date
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D21/00—Systems comprising a plurality of actuated clutches
- F16D21/02—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
- F16D21/04—Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways with a shaft carrying a number of rotatable transmission members, e.g. gears, each of which can be connected to the shaft by a clutching member or members between the shaft and the hub of the transmission member
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/14—Friction clutches with outwardly-movable clutching members co-operating with the inner surface of a drum or the like
- F16D13/16—Friction clutches with outwardly-movable clutching members co-operating with the inner surface of a drum or the like shaped as radially-movable segments
-
- 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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/083—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
-
- 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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/42—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
- F16H3/423—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable the teeth being arranged on a surface of generally conical shape
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3069—Interrelationship between two or more final output mechanisms
- F16H2063/3073—Interrelationship between two or more final output mechanisms final output mechanisms mounted on a single shaft
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft
- F16H2063/3096—Sliding keys as final output elements; Details thereof
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
Definitions
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission
- the subject matter of the invention is the transmission ratio change unit having permanent stepped meshing and perpetual power transmission
- polish Patent Specification no 139304 the mechanical gear having a changeable ratio gear and two shafts - clutch and gear-box which are parallel. There are non slidable bevel gears and tapers situated in an alternate way on the shafts. There is an intermediate motion shaft between those shafts and there are racks and the roll placed on the intermediate motion shaft, the roll is displaced in a vertical plane.
- the change of the ratio gear is performed by displacing the motion shaft and by linking corresponding racks.
- the friction gear is in a form of tapers and rolls placed on the shafts and the friction gear is used to compensate the rotations of the linking racks.
- variable gear which has the same construction as the planetary gear.
- the variable gear could transfer large power and it readjusts automaticly its rotations to the changeable work conditions.
- the variable gear has the slip clutch on the driving shaft, which is connected, by the racks to the driving wheel of the planet gear, it involves the rotations of the planetary gear around the central wheel. As a result, the driving shaft receives the additional rotations, which are the sum of the rotations of the wheel having internal teeth and of the wheel driving the planet gear.
- the mechanical gear having the variable speed gear has the taper bevel gear placed without rotating in the housing.
- the teeth of the bevel gear are placed on the protrusion where the protrusion is spirally bending the teeth, it enables meshing with at least three sliding gear wheels.
- the wheels are displaced along the bevel gear wheel by using the driving shackles, which are connected to the swing-frame gear trains.
- the swing-frame gear trains and the driving shackles are connected, via the driver to the first shaft.
- the swing-frame gear trains are also connected to the gear wheel, which is placed on the secondary shaft.
- the construction of the gear enables the permanent variable speed gear change of the rotations without the interruption of the turning moment.
- the change of the rotations is permanent and enables the generation of the rotations on the chosen step.
- the main idea of the invention is the transmission ratio change unit having perpetual power transmission which contains the stable and unstable operation mode wherein in the unstable operation mode works the gear ring which is in the shape of taper.
- the unstable operation mode gives changeable variable speed gear, the power transmission to the exit is transmitted from the adder where the rotating direct speed gear is added to the rotating speed gear from the bevel gear.
- the rotating speed on the entrance of the changeable transmission ratio unit is stable, the rotating speed on the exit of the changeable transmission ratio unit changes approximately linearly. The speed changes from the speed of the one gear to the neighbouring speed gear.
- the stable operation mode works the integrated clutch with the multistage gear, and the unit transmits the power as a classical multistage bevel gearbox.
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission having the changeable variable speed gear in a unstable operation mode is characterised by having an element, preferably with the taper outline, wherein on the outer surface of the element there is the spiral outline of the gear ring placed on the inte ⁇ nediate motion shaft rotating along the circumference of the clutch shaft and it has the gear-box shaft with sliding gear wheel which is meshed with the gear ring having the spiral outline and the lower gear-box shaft has the sliding gear wheel, which meshed with the gear ring having the spiral outline wherein gear wheels slide towards each other.
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission in the stable operation mode has the slidingly displaced clutch placed inside or outside the power driving gears of the multistage gear, transferring the turning moment via the frictional surfaces perpendicular to the longitudinal axis of the shafts of the gear box, and the driving shaft has the modes permanently meshed with the modes of the driving shaft, or there is a clutch which enables displacement inside or outside the driving gears of the multistage gear, transferring the taming moment via the frictional surfaces which are perpendicular to the longitudinal axis of the shaft of the gear box, and the driving shaft has permanently placed modes, permanently meshed with the modes of the driven shaft.
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission has two parallel shafts; the driving shaft and the driven shaft, where the driven shaft or the driving shaft forms the monolithic unity with the gears, having different number of teeth and is independently mounted on bearings in the gearbox housing, and is permanently meshed with driving wheel or the driven wheel.
- the unit has slidingly displaced clutch placed inside or outside the driven gears where the clutch is driven by the multispline shaft transferring the turning moment via the frictional surfaces which are perpendicular to the longitudinal axis of the shafts of the gear box and inside or outside driving wheels there is placed the sliding clutch moving along the driving multispline shaft transferring the turning moment via the frictional surfaces perpendicular to the longitudinal axis of the shafts of the gear box.
- the clutch transmitting the turning moment has the frictional working surface which is a side surface with any outline preferably with cylindrical outline.
- the bevel gear of the transmission ratio unit having permanent stepped meshing and perpetual power transmission enables changing over the gear course without using the clutch and it enables transmission large powers in a continuos way and it eliminates the necessity of using the synchronizers.
- the clutch of the transmission ratio change unit having permanent stepped meshing and perpetual power transmission, according to the invention enables obtaining high efficiency, transmission of the power without loosing motion, small outer shapes, simple construction, and using only two shafts, transmission large powers, permanently meshing all gear wheels.
- the block diagram of the transmission ratio change unit having permanent stepped meshing and perpetual power transmission is shown in the fig. 1 where I is the unstable operation mode, and II is stable operation mode.
- the unstable operation mode of the transmission ratio change unit having permanent stepped meshing and perpetual power transmission is shown in the example in the fig 2.
- fig 3 presents the transmission gear partly in a longitudinal section having a clutch on the driving shaft inside the gear rings where the clutch is in a turn on position
- fig 4 shows the transmission gear partly in a longitudinal section having a clutch on the driving shaft inside the gear rings, where the clutch is in a turn off position
- fig 5 presents the transmission gear partly in a longitudinal section having a clutch on the driving shaft outside the gear rings where the clutch is in a turn on position
- fig. 6 shows the transmission gear partly in a longitudinal section having a clutch on the driving shaft outside the gear rings where the clutch is in a turn off position
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission having the changeable variable speed gear in an unstable operation mode which is presented in the fig 2, according to the invention has the taper outline having the spiral outline of the gear ring 1 placed on the intermediate motion shaft 2 rotating along the circumference of the clutch shaft 3.
- the upper main gear-box shaft 4 has the sliding gear wheel 5, which is meshed with the gear ring 1
- the lower gear-box shaft 6 has the sliding gear wheel 7 meshed with gear ring 1 having the spiral outline.
- the gear wheel 5 slides along the main shaft 4 having the spiral outline of the gear 1 towards the gear wheel 7 meshed with the spiral outline of the gear 1 which slides along the main lower shaft 6_ towards the gear wheel 5.
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission having a clutch integrated with the multistage mechanical gear in permanent meshing in the stable system mode is presented in a fig 3 and fig 5, wherein the mechanical gear has two parallel shafts; the driving shaft 1 and the driven shaft 2, where the power driven shaft or the driving shaft forms the monolithic unity with the gear wheels 3 having different number of teeth and is independently mounted on bearing in the gearbox housing and is in a permanent meshing with the driving shaft 1.
- the bevel gear wheels 4 have the inter frictional cylindrical surface 5 which is shown in the fig 2, or the outer frictional cylindrical surface 6 shown in the fig 4, the surfaces cooperate with the clutch 7.
- the clutch is displaced along on the driving shaft i which is the splines 8 having turning on elements 9 of the clutch 7
- the transmission ratio change unit having permanent stepped meshing and perpetual power transmission having a clutch integrated with the multistage mechanical gear in permanent meshing in the stable system mode is presented in a fig 4 and fig 6, wherein the mechanical gear has two parallel shafts; the driving shaft !_1 and the driven shaft 12, where the power driven shaft or the driving shaft forms the monolithic unity with the gear wheels 13 having different number of teeth and is independently mounted on bearing in the gearbox housing and is in a permanent meshing with the driving shaft 1_L
- the bevel gear wheels 14 have the inter frictional cylindrical surface 15 ⁇ which is shown in the fig 3, or the outer frictional cylindrical surface 16_ shown in the fig 5, the surfaces cooperate with the clutch 17.
- the clutch is displayed on the driving shaft ⁇ which is the splines 18 having turning on elements 19 of the clutch Y
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Transmission Devices (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Gear Transmission (AREA)
- Mechanical Operated Clutches (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02763140A EP1673554B1 (en) | 2001-08-20 | 2002-08-14 | Transmission ratio change unit having permanent stepped meshing gears |
DE60233356T DE60233356D1 (en) | 2001-08-20 | 2002-08-14 | URNING WHEELS IN WORK |
AU2002328057A AU2002328057A1 (en) | 2001-08-20 | 2002-08-14 | Transmission ratio change unit having permanent stepped meshing gears |
AT02763140T ATE439535T1 (en) | 2001-08-20 | 2002-08-14 | TRANSMISSION WITH A NEARLY STEPLESS RATIO WITH WHEELS CONSTANTLY IN ENGAGEMENT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PLP-349209 | 2001-08-20 | ||
PL01349209A PL349209A1 (en) | 2001-08-20 | 2001-08-20 | Clutch integrated with a multiple-speed permanent-intermesh transmission gear |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2003025426A2 true WO2003025426A2 (en) | 2003-03-27 |
WO2003025426A3 WO2003025426A3 (en) | 2004-08-19 |
WO2003025426B1 WO2003025426B1 (en) | 2004-10-21 |
Family
ID=20079355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/PL2002/000061 WO2003025426A2 (en) | 2001-08-20 | 2002-08-14 | Transmission ratio change unit having permanent stepped meshing gears |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP1878945B1 (en) |
AT (2) | ATE507415T1 (en) |
AU (1) | AU2002328057A1 (en) |
DE (2) | DE60233356D1 (en) |
ES (2) | ES2332041T3 (en) |
PL (1) | PL349209A1 (en) |
WO (1) | WO2003025426A2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100600083B1 (en) | 2005-03-31 | 2006-07-18 | 에이원마린테크 주식회사 | Continuous variable transmission for powerboat |
WO2008046739A1 (en) * | 2006-10-19 | 2008-04-24 | Zf Friedrichshafen Ag | Device for actuating connecting devices |
FR2916825A1 (en) * | 2007-06-04 | 2008-12-05 | Cedric Philippe Frederic Froger | Gear ratio varying device for mechanical gearbox of car, has toothed spirals engrained on pinions by relieving pinions for transmitting continuous movement to sprocket, and gear ratio between spirals and sprocket continuously evolved |
CN103527725A (en) * | 2013-10-28 | 2014-01-22 | 魏伯卿 | Rotary gear-shifting transmission |
CN103615502A (en) * | 2013-07-10 | 2014-03-05 | 唐坤亮 | Stepless speed change device |
CN103758948A (en) * | 2013-12-31 | 2014-04-30 | 胥祥朋 | Multistage speed changing device |
CN105570397A (en) * | 2016-01-08 | 2016-05-11 | 任孝忠 | Full ratchet gear wheel stepless speed change device |
US9664256B2 (en) | 2012-08-01 | 2017-05-30 | Richter Helmut | Transmission which can be switched between at least three switching stages |
CN107763155A (en) * | 2016-08-16 | 2018-03-06 | 钟跃荣 | A kind of the mechanical stepless speed changes method and stepless speed changing mechanism of double-planet mechanism composition |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102141119B (en) * | 2011-03-22 | 2013-09-11 | 昆明理工大学 | Multi-stage backward gear speed changer with slide shaft roller keylock |
CN109083985B (en) * | 2018-09-18 | 2021-08-03 | 浙江东方机电有限公司 | Gear reducer with accurate and reliable reduction ratio |
CN111075913B (en) * | 2019-12-20 | 2020-12-08 | 安徽国防科技职业学院 | Speed changing method for surrounding type common rail in-line gearbox |
CN111005993B (en) * | 2019-12-20 | 2020-12-08 | 安徽国防科技职业学院 | Surrounding type common rail in-line gearbox |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697365A (en) | 1950-06-16 | 1954-12-21 | Earl C Williams | Power transmission equipment |
US2711105A (en) | 1951-06-02 | 1955-06-21 | Williams Earl Charles | Power transmission |
US3826152A (en) | 1973-05-11 | 1974-07-30 | K Alexeev | Variable-ratio gear transmission |
US4191069A (en) | 1977-05-19 | 1980-03-04 | Luigi Sasso | Multi-speed gear transmission especially for use in warping machines |
PL157252B1 (en) | 1987-11-18 | 1992-05-29 | Slaskie Przed Konstrukcji Stal | Hydraulic brake |
PL179658B1 (en) | 1996-02-21 | 2000-10-31 | Zbigniew Korczynski | Mechanical infinitely variable transmission with unidirectional clutches |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1337378A (en) | 1920-04-20 | Fishing-bod | ||
US1337578A (en) * | 1918-10-29 | 1920-04-20 | Herbert G Altvater | Variable-speed-transmission mechanism |
US2600562A (en) * | 1942-11-05 | 1952-06-17 | S A T A M Sa Appareillages Mec | Variable ratio transmission |
US3067626A (en) * | 1960-03-22 | 1962-12-11 | Curtiss Wright Corp | Transmission |
CH441909A (en) * | 1964-09-25 | 1967-08-15 | Feddern Horst | Method and device for changing gear stages of a gear change transmission, in particular for motor vehicles |
DE1911068A1 (en) * | 1969-03-05 | 1970-10-01 | Schubert & Salzer Maschinen | Manual transmission |
US4088037A (en) * | 1976-07-29 | 1978-05-09 | Philip Lunney | Transmission system |
DE2820147A1 (en) * | 1978-05-09 | 1979-11-15 | Luis Mueller | Steplessly variable ratio transmission - comprises one wheel with two rings alternately locked by freewheel mechanism |
PL139304B1 (en) | 1982-08-30 | 1987-01-31 | Bogdan Wieczorek | Mechanical transmission of variable transmission rate |
PL159560B1 (en) | 1988-09-16 | 1992-12-31 | Bogdan Wieczorek | Automatic infinitely variable planetary gear |
US5029689A (en) * | 1990-09-10 | 1991-07-09 | Sundstrand Corporation | Spring clutch assembly for use in a transmission |
DE19512642A1 (en) * | 1995-04-05 | 1996-10-10 | Bayerische Motoren Werke Ag | Multispeed gearbox for vehicle |
-
2001
- 2001-08-20 PL PL01349209A patent/PL349209A1/en unknown
-
2002
- 2002-08-14 AU AU2002328057A patent/AU2002328057A1/en not_active Abandoned
- 2002-08-14 DE DE60233356T patent/DE60233356D1/en not_active Expired - Lifetime
- 2002-08-14 AT AT07017116T patent/ATE507415T1/en not_active IP Right Cessation
- 2002-08-14 WO PCT/PL2002/000061 patent/WO2003025426A2/en not_active Application Discontinuation
- 2002-08-14 ES ES02763140T patent/ES2332041T3/en not_active Expired - Lifetime
- 2002-08-14 EP EP07017116A patent/EP1878945B1/en not_active Expired - Lifetime
- 2002-08-14 EP EP02763140A patent/EP1673554B1/en not_active Expired - Lifetime
- 2002-08-14 AT AT02763140T patent/ATE439535T1/en not_active IP Right Cessation
- 2002-08-14 DE DE60239900T patent/DE60239900D1/en not_active Expired - Lifetime
- 2002-08-14 ES ES07017116T patent/ES2365791T3/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697365A (en) | 1950-06-16 | 1954-12-21 | Earl C Williams | Power transmission equipment |
US2711105A (en) | 1951-06-02 | 1955-06-21 | Williams Earl Charles | Power transmission |
US3826152A (en) | 1973-05-11 | 1974-07-30 | K Alexeev | Variable-ratio gear transmission |
US4191069A (en) | 1977-05-19 | 1980-03-04 | Luigi Sasso | Multi-speed gear transmission especially for use in warping machines |
PL157252B1 (en) | 1987-11-18 | 1992-05-29 | Slaskie Przed Konstrukcji Stal | Hydraulic brake |
PL179658B1 (en) | 1996-02-21 | 2000-10-31 | Zbigniew Korczynski | Mechanical infinitely variable transmission with unidirectional clutches |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100600083B1 (en) | 2005-03-31 | 2006-07-18 | 에이원마린테크 주식회사 | Continuous variable transmission for powerboat |
WO2008046739A1 (en) * | 2006-10-19 | 2008-04-24 | Zf Friedrichshafen Ag | Device for actuating connecting devices |
FR2916825A1 (en) * | 2007-06-04 | 2008-12-05 | Cedric Philippe Frederic Froger | Gear ratio varying device for mechanical gearbox of car, has toothed spirals engrained on pinions by relieving pinions for transmitting continuous movement to sprocket, and gear ratio between spirals and sprocket continuously evolved |
US9664256B2 (en) | 2012-08-01 | 2017-05-30 | Richter Helmut | Transmission which can be switched between at least three switching stages |
CN103615502A (en) * | 2013-07-10 | 2014-03-05 | 唐坤亮 | Stepless speed change device |
CN103527725A (en) * | 2013-10-28 | 2014-01-22 | 魏伯卿 | Rotary gear-shifting transmission |
CN103758948A (en) * | 2013-12-31 | 2014-04-30 | 胥祥朋 | Multistage speed changing device |
CN103758948B (en) * | 2013-12-31 | 2016-09-14 | 胥祥朋 | A kind of step by-step variable gear |
CN105570397A (en) * | 2016-01-08 | 2016-05-11 | 任孝忠 | Full ratchet gear wheel stepless speed change device |
CN107763155A (en) * | 2016-08-16 | 2018-03-06 | 钟跃荣 | A kind of the mechanical stepless speed changes method and stepless speed changing mechanism of double-planet mechanism composition |
Also Published As
Publication number | Publication date |
---|---|
ATE507415T1 (en) | 2011-05-15 |
EP1878945A2 (en) | 2008-01-16 |
EP1878945B1 (en) | 2011-04-27 |
DE60239900D1 (en) | 2011-06-09 |
WO2003025426A3 (en) | 2004-08-19 |
EP1673554A2 (en) | 2006-06-28 |
DE60233356D1 (en) | 2009-09-24 |
WO2003025426B1 (en) | 2004-10-21 |
ATE439535T1 (en) | 2009-08-15 |
PL349209A1 (en) | 2003-02-24 |
EP1673554B1 (en) | 2009-08-12 |
ES2365791T3 (en) | 2011-10-11 |
EP1878945A3 (en) | 2008-01-23 |
ES2332041T3 (en) | 2010-01-25 |
AU2002328057A1 (en) | 2003-04-01 |
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Legal Events
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