EP3601846A1 - Transmission à variation continue à réglage pneumatique - Google Patents

Transmission à variation continue à réglage pneumatique

Info

Publication number
EP3601846A1
EP3601846A1 EP18711499.6A EP18711499A EP3601846A1 EP 3601846 A1 EP3601846 A1 EP 3601846A1 EP 18711499 A EP18711499 A EP 18711499A EP 3601846 A1 EP3601846 A1 EP 3601846A1
Authority
EP
European Patent Office
Prior art keywords
axially movable
disk
conical disk
housing
cvt transmission
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.)
Withdrawn
Application number
EP18711499.6A
Other languages
German (de)
English (en)
Inventor
Falko Winter
Rudolf Eydam
Carolin Breitinger
Daniel Schwartz
Ingo Drewe
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3601846A1 publication Critical patent/EP3601846A1/fr
Withdrawn legal-status Critical Current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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/52—Pulleys or friction discs of adjustable construction
    • F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
    • F16H55/563—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable actuated by centrifugal masses
    • 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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/18—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/40—Actuators for moving a controlled member
    • B60Y2400/408—Pneumatic actuators
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • 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
    • F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
    • F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
    • F16H63/065—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions hydraulic actuating means

Definitions

  • the present invention relates to a pneumatically variable CVT transmission (continuously variable transmission) especially for small vehicles such as two-wheelers, tricycles, quads or snowmobiles and an internal combustion engine and a vehicle.
  • the invention relates to a pneumatically adjustable CVT transmission having the features of the preamble of independent claim 1.
  • CVT transmissions are known from the prior art in various configurations. Due to the continuously variable transmission suitable ratios can be achieved in vehicles in each case in comparison with gears with fixed gears.
  • a particular application of such CVT transmissions are small vehicles, such as two-wheelers, tricycles (so-called Tucktucks), snowmobiles, quads or scooters. In such CVT transmissions are often centrifugal governors for adjusting a position of a belt to a
  • Adjustment device which adjusts the axially movable cone pulley by means of pneumatic force.
  • an adjusting device for adjusting a position of an axially movable conical disk is provided.
  • the adjusting device is a pneumatic adjusting device, which the axially movable conical disk by means of pneumatic force adjusted.
  • the adjusting device comprises a pneumatic space, which is arranged on a rear side of the axially movable conical disk.
  • the back of the axially movable conical disk is the side which is not in contact with the belt of the CVT transmission.
  • the CVT transmission comprises a pair of conical disks with at least one axially movable conical disk, one
  • the adjusting device comprises a pneumatic space, which is arranged on a rear side of the axially movable conical disk, so that an axial movement of the axially movable conical disk takes place in the axial direction by changing a pressure in the pneumatic space.
  • centrifugal force elements are arranged on the axially movable conical disk, wherein the pneumatic space is defined by the rear side of the axially movable conical disk and a front side of a disk housing.
  • ramp-shaped support regions are formed on the front side of the disk housing, wherein the centrifugal force elements are arranged between the axially movable conical disk and the ramp-shaped support regions.
  • the CVT transmission according to the invention with the features of claim 1 has the advantage over the prior art that a particularly simple and compact pneumatic space at the back of the axially movable cone pulley is created.
  • the pneumatic space can be formed in a simple and compact manner by the rear side of the axially movable conical disk and the disk housing. By formed on the front of the disc housing
  • ramp-shaped supporting areas for the centrifugal elements can be another, For example, between the disc housing and the axially movable conical disk arranged component with ramp-shaped support areas omitted and thus advantageous components and thus also advantageous space can be saved.
  • the centrifugal force of trained on the front of the disc housing ramp-shaped support areas can be advantageously stably guided, which contributes to an advantageously stable construction of the CVT transmission.
  • a CVT transmission with support areas formed on the front side of the disk housing can advantageously be easily mounted.
  • the axially movable conical disk is at least partially disposed within the disk housing.
  • the axially movable conical disk can be advantageously moved within the disc housing in the axial direction and form such a variable pneumatic space, for example, by pressure from the
  • connection line can be changed.
  • the axially movable acts
  • Disk housing a cylindrical housing wall is formed, wherein on the axially movable conical disk, a cylindrical disk wall is formed, wherein the cylindrical disk wall is disposed in an overlap region radially within the housing wall and the housing wall and the disk wall in such a way limit the pneumatic space in the radial direction to an outside area.
  • an advantageously flexible and variable pneumatic space can be formed.
  • Overlap area arranged a sealing element, wherein the sealing element the
  • Disc wall circulates annularly.
  • a sealing element of the Pneumatic space in the overlap area are advantageously well sealed.
  • the axially movable conical disk relative to the disk housing can advantageously be displaced in the axial direction, wherein the seal is maintained in the overlapping region.
  • Disk wall circumferential groove formed in which the sealing element is arranged Disk wall circumferential groove formed in which the sealing element is arranged.
  • the sealing element can be advantageously fixed in the disc wall and move in axial displacement of the axially movable conical disk relative to the disc housing with the conical disk in the overlap region.
  • the disc housing rotates together with the axially movable
  • elevated intermediate regions are formed between the ramp-shaped support regions on the front side of the disk housing with respect to the support regions.
  • Such increased intermediate regions can advantageously serve as guides for the linear movement of the conical disk and for torque transmission.
  • Recesses engage in the back of the axially movable conical disk, so that the disc housing advantageously rotates together with the axially movable conical disk and the torque can be transmitted from the crankshaft to the disk housing on the axially movable conical disk.
  • intermediate area grooves are formed on side walls of the intermediate areas, in which sliding elements are arranged.
  • the sliding elements are in contact with the axially movable conical disk.
  • the sliding elements can thereby advantageously simplify the axial movement of the axially movable conical disk by, for example, the friction is advantageously reduced by the sliding elements.
  • the sliding elements are advantageously used for damping. It also proves to be an advantage if the disk housing is formed in one piece.
  • a particularly simple and space-saving CVT transmission can be provided with advantageously reduced number of components.
  • the CVT transmission further comprises a vacuum source, in particular a suction tube, which is connectable to the pneumatic space.
  • the pneumatic adjusting device can be set up in such a way to adjust the axially movable conical disk by means of negative pressure.
  • the pneumatic accumulator is thus advantageously held in the pneumatic accumulator negative pressure.
  • the pneumatic accumulator can be connected via a connecting line with a vacuum source.
  • the present invention relates to an internal combustion engine comprising a CVT transmission according to the invention.
  • the internal combustion engine comprises, for example, at least one cylinder and a suction pipe leading to the cylinder, wherein the suction pipe is connected to the pneumatic adjusting device of the CVT transmission to the
  • the suction tube can be connected to the pneumatic space.
  • a negative pressure for pneumatic adjustment of the CVT transmission can thus be used. This is particularly advantageous because the vacuum is anyway present in internal combustion engines with intake manifold and can be used in addition to setting a gear ratio of a CVT transmission.
  • the present invention relates to a vehicle comprising a
  • the vehicle preferably has a vehicle frame, in particular a pipe or pipe connection, which may be designed as a pneumatic accumulator.
  • a hollow frame may be provided, in which an overpressure or a negative pressure as a pneumatic accumulator for the provision of the pneumatic force for
  • Adjustment of the CVT transmission can be used. This is particularly advantageous when using two-wheeled or three-wheeled vehicles, which usually have such a hollow frame. As a result, no further components for the pneumatic accumulator are necessary, but only a few sections of hollow tubes or the like.
  • the vehicle according to the invention is preferably a small vehicle, in particular a two-wheeler or a tricycle or a quad or a snowmobile or a scooter or the like.
  • FIG. 1 is a schematic representation of a CVT transmission for a small vehicle according to a first embodiment of the invention
  • FIG. 2 is a schematic sectional view of the prime mover of the CVT transmission of Fig. 1,
  • FIG. 3 is an illustration of an embodiment of a disc housing of the CVT transmission of Fig. 1 and Fig. 2,
  • Fig. 5 is a schematic representation of a control valve of the first embodiment
  • Fig. 6 is a schematic representation of a control valve according to a second
  • a CVT transmission 1 i. a continuously variable, continuously variable transmission, according to a preferred
  • the CVT transmission 1 comprises a first driven conical disk pair 2 with a stationary conical disk 20 and an axially movable conical disk 21.
  • a second conical disk pair is provided.
  • the two conical disk pairs are connected in a known manner via a belt 12, in particular a belt.
  • the first cone pulley pair 2 is arranged on a crankshaft 1 1 of an internal combustion engine 10.
  • the crankshaft 1 1 is connected to the stationary conical disk 20.
  • the CVT transmission 1 further comprises centrifugal elements 3, which on the axial
  • centrifugal elements are 3 balls.
  • six centrifugal elements 3 are provided.
  • solid cylinders or hollow cylinders or the like can be used.
  • the centrifugal force elements 3 are arranged on a rear side 22 of the axially movable conical disk 21.
  • the adjusting device 5 comprises a pneumatic space 50, which is arranged on the rear side 22 of the axially movable conical disk.
  • the adjusting device 5 is used to adjust an axial position of the axially movable conical disk 21st
  • a suction pipe 9 of an internal combustion engine 10 is connected to a vacuum reservoir 7 via a first line 16.
  • a suction pipe 9 of an internal combustion engine 10 is connected to a vacuum reservoir 7 via a first line 16.
  • first line 16 In the first line
  • a second line 17 is provided as a supply line of the pressure prevailing in the vacuum accumulator 7 pressure to the pneumatic chamber 50.
  • control valve 8 In the second line 17, a control valve 8 is arranged.
  • the control valve 8 is shown in detail in FIG.
  • FIGS. 5 and 6 are shown.
  • the control valve 8 is by means of a control unit 6 in
  • the control unit 6 is set up to actuate the adjusting device 5 around the
  • a vacuum present in a suction pipe 9 of an internal combustion engine 10 is used as pneumatic energy for adjusting a ratio of the CVT transmission 1.
  • a pressure level in the intake manifold 9 is dependent on a throttle position and a speed of the internal combustion engine.
  • Vacuum accumulator 7 can be ensured. This will make a simple and safe Adjusting the axially movable conical disk 21 achieved by means of pneumatic force. A provision can be made by means of ambient pressure.
  • the vacuum accumulator 7 may for example be arranged in a cavity of a vehicle.
  • the actuator 5 is disposed on a primary side of the CVT, that is, on an input side.
  • the adjusting device is arranged on a secondary side of the CVT transmission, that is to say on the drive element 13.
  • an actuating device is arranged on the primary side and the secondary side.
  • the adjusting device 5 comprises a pneumatic chamber 50.
  • An embodiment of the pneumatic chamber 50 is shown in FIG. 2 in a schematic sectional view of the
  • Cone pulley pair 2 of the CVT transmission 1 shown.
  • the conical disk pair 2 comprises a stationary conical disk 20 and an axially movable conical disk 21.
  • the pneumatic chamber 50 is arranged on the rear side 22 of the axially movable conical disk 21. The pneumatic chamber 50 is thus of the back 22 of the
  • the pneumatic space 50 is bounded by a front side 31 of a disk housing 30.
  • Housing wall 33 is formed. In this embodiment is at the axial
  • a cylindrical disk wall 23 is formed.
  • the cylindrical disc wall 23 is in an overlap region 24 within the
  • Housing wall 33 is arranged.
  • the cylindrical disk wall 23 of the axially movable conical disk 21 and the housing wall 33 of the disk housing 30 are
  • Housing wall 33 limit the pneumatic space 50 in this embodiment in the radial direction to an outside area of 28 out.
  • a sealing element 53 is provided in the overlap region 24.
  • the sealing element 53 rotates in this example, the disk wall 23 annular, so that the disk wall 23 relative to the housing wall 33 in radial Direction the disk wall 23 is completely circumferentially sealed and thus a sealed pneumatic chamber 50 is formed.
  • a disk wall 23 circumferential groove 25 is provided in the disk wall 23, wherein the sealing element 53 is disposed in the groove 25.
  • the sealing element 53 is the disk wall 23 completely circumferentially with the disk wall 23 in contact and the disk wall 23 completely circumferentially with the housing wall 33 in contact.
  • the sealing element may for example be an O-ring, a shaft seal, a piston sealing ring or the like.
  • the front side 31 of the disk housing 30 is bounded in the pneumatic space 50 in the axial direction X-X. At the same time limits the back 22 of the axially movable
  • Cone pulley 21 the pneumatic chamber 50 in the axial direction X-X.
  • the front side 31 delimits the pneumatic space 50 in the opposite direction as the rear side 22 of the axially movable conical disk 21.
  • the disk housing 30 rotates together with the axially movable conical disk 21.
  • the axially movable conical disk 21 is fixed on an outer sleeve 54, which is arranged displaceably on an inner sleeve 55 in the axial direction X-X.
  • the crankshaft 1 1, the disc housing 30, the axially movable conical disk 21 and the stationary conical disk 21 thus rotate equally fast.
  • a second sealing means 57 which completely circumscribes the inner sleeve 55 is provided on a side of the outer sleeve 54 facing away from the stationary conical disk 20 in this exemplary embodiment.
  • Axial direction X-X is on one of the stationary conical disk 20 facing side of the outer sleeve 54 in this embodiment, the inner sleeve 55 completely circumferential second sealant 57 is provided.
  • the disc housing 30 is connected, for example indirectly or indirectly with the interposition of a not shown in the figures, the crankshaft 1 1 completely surrounding sealing element with the crankshaft 1 1.
  • the crankshaft 1 1 is through the disk housing 30 and the axially movable conical disk 21st
  • the axially movable conical disk 21 moves within the disk housing 30, which is indeed arranged rotatably, but is not arranged to be movable in the axial direction X-X.
  • the distance between the axially movable conical disk 21 and the fixed conical disk 20 becomes larger, so that the belt moves further in the direction of the crankshaft 1 1.
  • centrifugal elements 3 are provided.
  • the centrifugal force elements 3 are arranged on a rear side 22 of the axially movable conical disk 21.
  • the centrifugal elements are 3 balls.
  • six centrifugal elements 3 are provided.
  • solid cylinder or hollow cylinder or the like can be used.
  • the centrifugal weights 3 shift depending on a speed of the conical disks, so that only a fine adjustment of the gear ratio is necessary by means of the pneumatic actuator.
  • ramp-shaped support regions 32 are formed on the front side 31 of the disk housing 30.
  • the support regions 32 are formed in a ramp shape, with the support regions 32 approaching the stationary conical disk 20 in the radial direction from the crankshaft 1 1 to the housing wall 33.
  • the centrifugal force elements 3 are arranged between the axially movable conical disk 21 and the ramp-shaped support regions 32. Thus, the centrifugal elements 3 are arranged in the pneumatic space 50.
  • the raised intermediate regions 34 between the support regions 32 are formed, for example, such that the raised
  • the formed on the back 22 of the axially movable conical disk 21 recesses 26 are shown in Fig. 4.
  • the recesses 26 serve to guide the raised intermediate regions 34 during axial movement of the axially movable Cone pulley 21. Due to the positive connection when engaging the raised intermediate regions 34 in the recesses 26, the torque of the
  • Disk housing 30 are further transmitted to the axially movable conical disk 21.
  • On the back 22 of the axially movable conical disk 21 further ramp-shaped support regions 27 are further formed, on which the centrifugal force elements 3 rest.
  • the intermediate regions 32 protrude from the support regions 32 with respect to the axial direction X - X in the direction of the stationary conical disk 20.
  • Housing wall 33 and the intermediate regions 34 is shown in Fig. 3.
  • Recesses 26 in contact and slide on the axially movable conical disk 21, when it is moved axially.
  • the sliding elements 37 can thus simplify the axial movement of the axially movable conical disk 21, for example, by the sliding elements 37, the friction is reduced. Furthermore, the sliding elements 37 serve the damping.
  • the disc housing 30 is integrally formed in this embodiment.
  • the front side 31 of the disc housing 30, the support portions 32 and the housing wall 32 are integrally formed and form such a disk housing 30.
  • the support portions 32 and the housing wall 32 are integrally formed and form such a disk housing 30.
  • Supporting portions 32 and the housing wall 33 integrally formed.
  • control valve 8 is a 3/3-way valve, wherein the control valve 8 can connect on the one hand to the vacuum reservoir 7 and on the other hand with an environment 19 (ambient pressure).
  • a third position is the closed position of the control valve 8, which is shown in Fig. 5.
  • a reduction of the distance between the axially movable conical disk 21 and the stationary conical disk 20 can then again by briefly opening the
  • Control valve 8 for establishing a connection with the environment 19 can be realized.
  • the second conduit 17 is arranged such that the second conduit 17 opens into the pneumatic chamber 50. It may, for example, a line passed through the crankshaft 1 1 and be connected from the inside to the pneumatic chamber 50.
  • Fig. 6 shows an alternative embodiment of the control valve 8, which in this
  • Embodiment two 2/2-way valves 80, 81 includes. One of the two 2/2-way valves is arranged between the vacuum reservoir 7 and the pneumatic chamber 50 and the other of the two 2/2-way valves is between the
  • the present invention is particularly applicable to small vehicles, e.g. Used on two-wheelers or tricycles or quads or snowmobiles or the like.

Landscapes

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

Abstract

L'invention concerne une transmission à variation continue, comprenant une paire de disques coniques (2) avec au moins un disque conique (21) déplaçable axialement, un dispositif de réglage (5) pour régler une position du disque conique (21) déplaçable axialement et une unité de commande (6), qui est prévue pour actionner le dispositif de réglage (5), afin de modifier la position du disque conique (21) déplaçable axialement, le dispositif de réglage (5) comprenant un espace pneumatique (50) qui est disposé au niveau d'un côté arrière (22) du disque conique (21) déplaçable axialement, de telle sorte que par une variation d'une pression dans l'espace pneumatique (50), il se produise un déplacement axial du disque conique (21) déplaçable axialement dans la direction axiale (X-X), des élément de force centrifuge (3) étant disposés au niveau du disque conique (21) déplaçable axialement, l'espace pneumatique (50) étant défini par le côté arrière (22) du disque conique (21) déplaçable axialement et par un côté avant (31) d'un boîtier de disque (30). Selon l'invention, on réalise au niveau du côté avant (31) du boîtier de disque (30) des régions de support en forme de rampe (32), les éléments de force centrifuge (3) étant disposés entre le disque conique (21) déplaçable axialement et les régions de support en forme de rampe (32).
EP18711499.6A 2017-03-31 2018-03-05 Transmission à variation continue à réglage pneumatique Withdrawn EP3601846A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017205514.6A DE102017205514A1 (de) 2017-03-31 2017-03-31 Pneumatisch verstellbares CVT-Getriebe
PCT/EP2018/055291 WO2018177688A1 (fr) 2017-03-31 2018-03-05 Transmission à variation continue à réglage pneumatique

Publications (1)

Publication Number Publication Date
EP3601846A1 true EP3601846A1 (fr) 2020-02-05

Family

ID=61683753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18711499.6A Withdrawn EP3601846A1 (fr) 2017-03-31 2018-03-05 Transmission à variation continue à réglage pneumatique

Country Status (5)

Country Link
EP (1) EP3601846A1 (fr)
CN (1) CN110520649A (fr)
DE (1) DE102017205514A1 (fr)
TW (1) TW201842284A (fr)
WO (1) WO2018177688A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671950U (ja) * 1993-03-22 1994-10-07 栃木富士産業株式会社 無段変速装置
IT1270031B (it) * 1994-04-14 1997-04-28 Piaggio Veicoli Europ Gruppo puleggia motrice in veicoli a pedali con cambio continuo di velocita' con dispositivo automatico per facilitare l'avviamento
AU2599901A (en) * 1999-12-27 2001-07-09 Speed Selector, Inc. Variable speed drive system
CN1740587A (zh) * 2004-08-27 2006-03-01 谦淳有限公司 自动变速传动装置的推盘锤
KR20130013028A (ko) * 2011-07-27 2013-02-06 권영웅 원심볼이 적용된 무단변속기
CA2886623A1 (fr) * 2012-09-28 2014-04-03 Brp-Powertrain Gmbh & Co. Kg Transmission a variation continue a assistance pneumatique
DE102015214153A1 (de) * 2015-07-27 2017-02-02 Robert Bosch Gmbh Pneumatisch verstellbares CVT-Getriebe

Also Published As

Publication number Publication date
CN110520649A (zh) 2019-11-29
DE102017205514A1 (de) 2018-10-04
TW201842284A (zh) 2018-12-01
WO2018177688A1 (fr) 2018-10-04

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