KR101739197B1 - Hybrid alternator pulley assembly - Google Patents

Hybrid alternator pulley assembly Download PDF

Info

Publication number
KR101739197B1
KR101739197B1 KR1020150141013A KR20150141013A KR101739197B1 KR 101739197 B1 KR101739197 B1 KR 101739197B1 KR 1020150141013 A KR1020150141013 A KR 1020150141013A KR 20150141013 A KR20150141013 A KR 20150141013A KR 101739197 B1 KR101739197 B1 KR 101739197B1
Authority
KR
South Korea
Prior art keywords
pulley
groove portion
ball
circumferential surface
outer pulley
Prior art date
Application number
KR1020150141013A
Other languages
Korean (ko)
Other versions
KR20170041505A (en
Inventor
박승영
구현
Original Assignee
주식회사 만도
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 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020150141013A priority Critical patent/KR101739197B1/en
Publication of KR20170041505A publication Critical patent/KR20170041505A/en
Application granted granted Critical
Publication of KR101739197B1 publication Critical patent/KR101739197B1/en

Links

Images

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
    • F16H55/36—Pulleys
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pulleys (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A pulley assembly for a hybrid alternator is disclosed. The pulley assembly for a hybrid alternator according to an embodiment of the present invention includes: an outer pulley having a thread formed on an outer circumferential surface thereof and having an inner circumferential surface formed with a first groove portion having a spiral shape along a longitudinal direction thereof; An inner pulley inserted into the outer pulley and having a second groove formed on an outer circumferential surface of the outer pulley in a direction opposite to the first groove along a longitudinal direction; The outer pulley and the inner pulley are inserted into a space formed by the first groove portion and the second groove portion and selectively transmit rotational force generated in different rotational directions to either the outer pulley or the inner pulley in accordance with the relative rotation of the outer pulley and the inner pulley Ball; And a shaft inserted into the inner pulley and extending toward the alternator.

Description

[0001] The present invention relates to a hybrid alternator pulley assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pulley for generating or motoring through an alternator, and more particularly, to prevent breakage of a pulley due to a sudden change of rotational force in a pulley assembly for a hybrid alternator.

Generally, a battery used in an automobile can not be used for a long period of time, and must be charged after a certain period of time. As such a charging device, an alternator, which is an alternator, is widely used.

The alternator is driven by receiving a rotational force of a crank pulley connected to a crankshaft of an engine via a belt. As such a belt for transmitting the driving force, there is a flat belt having a flat cross-section of the contact surface, and a V-belt having a V-shaped cross section in order to increase the friction coefficient and improve the transmission efficiency.

A general structure of a conventional alternator is such that a rotor is disposed on a rotating shaft inside a stator so that a front portion is protected by a front bracket and a rear portion is protected by a case. The circuit board is fixed to the rear side of the stator, and electronic parts such as a heat radiating part, a rectifier, and a regulator are disposed. The case is configured to accommodate not only the parts but also the brush room in the lower part.

At this time, when the alternator power is generated, usually generates heat of 80 degrees or more. When the outside temperature is 40 degrees or more, heat is generated from 100 to 110 degrees. In order to cool the inside of the alternator, an external cooling fan is installed on the rotating shaft of the front part , And a pulley is mounted on the rotary shaft projecting to the front portion so as to receive a rotational force by a belt (not shown).

The poly is rotated in one direction to transmit power to the shaft of the alternator or in the opposite direction to transmit the rotational force from the rotation axis of the alternator to the output shaft of the engine as in the case of the hybrid alternator.

As such, the hybrid alternator is required to have a pulley capable of minimizing the transmission of the impact to the belt in accordance with the change in torque generated when the rotational force is transmitted in the forward and reverse directions to the pulley.

Korean Patent Publication No. 10-2014-0086695

Embodiments of the present invention provide a hybrid alternator pulley assembly capable of minimizing impact applied to a bi-directional pulley mounted on a hybrid alternator, thereby assuring durability and safety of a belt connected to the pulley.

According to an aspect of the present invention, there is provided an outer pulley having an outer circumferential surface formed with threads and an inner circumferential surface formed with a first groove portion having a spiral shape along a longitudinal direction in a circumferential direction; An inner pulley inserted into the outer pulley and having a second groove formed on an outer circumferential surface of the outer pulley in a direction opposite to the first groove along a longitudinal direction; The outer pulley and the inner pulley are inserted into a space formed by the first groove portion and the second groove portion and selectively transmit rotational force generated in different rotational directions to either the outer pulley or the inner pulley in accordance with the relative rotation of the outer pulley and the inner pulley Ball; And a shaft inserted into the inner pulley and extending toward the alternator.

The first and second grooves may have a semicircular cross section.

When the first groove portion is formed in the right screw direction, the second groove portion is formed in the left screw direction, and when the first groove portion is formed in the left screw direction, the second groove portion is formed in the right screw direction .

And the ball is selectively positioned at an intermediate position or one side with respect to the longitudinal direction in a state where the outer pulley and the inner pulley are engaged.

And one or a plurality of the balls are inserted.

And a first bearing inserted into the shaft and positioned at one end with respect to an inner longitudinal direction of the outer pulley and in rolling contact with an inner circumferential surface of the outer pulley.

And a nut inserted into the shaft and closely attached to the inner pulley to prevent movement in the axial direction due to rotation of the inner pulley.

And a fixed key is provided between the shaft and the inner pulley so as to maintain the fixed state between the shaft and the inner pulley.

And a support ring for dispersing an axial stress of the ball is provided at one inner side of the outer pulley.

According to another aspect of the present invention, there is provided a pulley assembly for a hybrid alternator, comprising: an outer pulley having an outer circumferential surface formed with threads and an inner circumferential surface formed with a first groove portion having a spiral shape along a longitudinal direction in a circumferential direction; An inner pulley inserted into the outer pulley and having a second groove formed on an outer circumferential surface of the outer pulley in a direction opposite to the first groove along a longitudinal direction; The outer pulleys and the inner pulleys are inserted into a space formed by the first groove portion and the second groove portion and selectively transmit rotational force generated in different rotational directions to either the outer pulley or the inner pulley in accordance with the relative rotation of the outer pulley and the inner pulley A ball comprising a plurality of open apertures; A shaft inserted into the inner pulley and extending toward the alternator; An oil layer formed by the oil injected into the first and second grooves for damping as the ball moves; And an oil seal provided between the outer pulley and the inner pulley to prevent leakage of the oil.

Embodiments of the present invention minimize shock due to sudden turning of the pulley assembly for a hybrid alternator and prevent breakage of the pulley, so that stable driving of the vehicle can be achieved through stable transmission of torque, and unnecessary power loss can be minimized.

Embodiments of the present invention improve the damping effect through oil when the rotational force is switched for generating and motoring through the hybrid alternator, thereby minimizing unnecessary noise generation and improving durability.

1 is a longitudinal sectional view of a pulley assembly for a hybrid alternator according to an embodiment of the present invention.
2 is an operational view of a pulley assembly for a hybrid alternator according to one embodiment of the present invention;
3 is a longitudinal sectional view showing a state where a fixed key and a support ring are installed in a pulley assembly for a hybrid alternator according to an embodiment of the present invention.
4 is a longitudinal sectional view of a pulley assembly for a hybrid alternator according to another embodiment of the present invention.
5 is a view showing an operating state of a pulley assembly for a hybrid alternator according to a relative rotation of an outer pulley and an inner pulley according to an embodiment of the present invention.

A configuration of a pulley assembly for a hybrid alternator according to an embodiment of the present invention will be described with reference to the drawings.

1 and 2, a hybrid alternator pulley assembly 1 according to an embodiment of the present invention is a pulley assembly used in a hybrid alternator. The outer pulley assembly 100 includes an outer pulley 100, an inner pulley 200, (300) and a shaft (400). In this case, the hybrid alternator is rotated in a clockwise or counterclockwise direction so as to transmit a rotational force to the output shaft of the engine, unlike a pulley used in a general alternator in which an alternator is operated by a rotational force transmitted to a pulley from an output shaft of an engine. This means a possible pulley.

For this purpose, the outer pulley 100 of the present invention has a thread formed on the outer circumferential surface thereof. The outer pulley 100 receives the rotational force through the pulley and transmits the rotational force to the shaft 400. The inner circumferential surface of the outer pulley 100 has a spiral first groove 110 are formed.

Although the first trench 110 is formed in a semicircular cross section, it may be changed into another shape, and the size thereof is not limited to the size shown in the drawings, and may be variously changed.

The first groove portion 110 is formed in a right-hand screw direction, and is disposed on the inner circumferential surface of the outer pulley 100 along a longitudinal direction at a predetermined interval to be relatively rotated with an inner pulley 200 described later.

The inner pulley 200 is inserted into the outer pulley 100 and has a second groove portion 210 formed on the outer circumferential surface thereof in a spiral shape along the longitudinal direction in a direction opposite to the first groove portion 110.

The second trench 210 may have a semicircular cross section, but may have other shapes, and the size of the second trench 210 is not limited to that shown in the drawings, and may be variously changed.

The second groove part 210 is formed in a right-hand direction, for example, opposite to the direction of the first groove part 110, and is disposed at a predetermined interval in the longitudinal direction of the inner peripheral surface of the outer pulley 100.

The first groove part 110 and the second groove part 210 according to the present embodiment are formed in the same cross-sectional shape and inserted into the inner space formed in the first and second groove parts 110 and 2210, And a ball 300 for selectively transmitting a rotational force generated in different rotational directions to either the outer pulley 100 or the inner pulley in accordance with the relative rotation of the inner pulley 200.

The ball 300 may be made of steel or made of another material and may have a structure that does not cause wear and deformation due to rolling contact in the first and second trenches 110 and 210.

The outer pulley 100 and the inner pulley 200 perform stable operation of the hybrid alternator through relative rotation of the outer pulley 100 and the inner pulley 200. The ball 300 is rotated by a rotational force transmitted from the outer pulley 100 to the inner pulley 200, 200 to the outer pulley 100. In this case,

For example, the rotational force transmitted through the outer pulley 100 is transmitted to the inner pulley 200 and is converted to a driving force required for the operation of the alternator through the shaft 400 coupled with the inner pulley 200. The rotation force generated by the alternator is transmitted to the inner pulley 200 via the shaft 400 and the rotation force of the inner pulley 200 is transmitted to the engine 100 via the outer pulley 100 to support the rotation force of the engine. Lt; / RTI >

At this time, a rotational force is transmitted from the outer pulley 100 to the outer pulley 100 through the inner pulley 200 and then transmitted to the outer pulley 100 via the inner pulley 200 from the shaft 400 in the reverse direction The impact transmitted to the belt through the first and second grooves 110 and 210 and the ball 300 is mitigated to prevent the impact due to abrupt turning of the torque from being transmitted to the pulley when the rotational force is changed, The outer pulley 100 and the inner pulley 200 are rotated by the balls 300 through the balls 300 for a time of t seconds to minimize the impact caused by the rotational force, .

For example, when the ball 300 is positioned on the left side with respect to the assembled state of the outer pulley 100 and the inner pulley 200, the time of t seconds is required to be shifted to the right when the rotational force is changed It means time.

The process of transmitting the torque according to the relative movement of the ball 300 is described with reference to a case where the first groove portion 110 formed in the outer pulley 100 and the second groove portion 210 formed in the inner pulley 200 are horizontally extended do. For reference, the description will be limited to the case where the ball is moved in a state of being positioned at the center in the longitudinal direction based on the cross-sectional view in which the outer pulley and the inner pulley are assembled.

2, when rotational force is transmitted from the inner pulley 200 to the outer pulley 100 so that the rotational force for motoring the alternator is transmitted to the output shaft (not shown) of the engine, The ball 300 is rotated for about t seconds along the first and second troughs 110 and 210 and is rotated by the rotation of the inner pulley 200 Relocation is relatively done.

At this time, the rotational force transmitted through the outer pulley 100 is not transmitted, and only the slip due to the relative rotation with the inner pulley 200 is minimized.

The balls 300 are moved along the first and second trenches 110 and 210 to a position indicated by a solid line at a position indicated by a dotted line and are transmitted to the ball 300 through a torque corresponding to the rotation of the inner pulley 200, The relative rotation between the inner pulley 200 and the outer pulley 100 is stopped and the rotation force is transmitted through the outer pulley 100 only when the first and second trenches 110 and 210 are moved to the left, do.

Accordingly, the operation of the hybrid alternator through the motor ring using the rotational force of the alternator is performed in the order that the rotational force is transmitted from the shaft 400 to the engine via the inner pulley 200 and the outer pulley 100.

The ball 300 is selectively positioned at an intermediate position or one side with respect to the longitudinal direction in a state where the outer pulley 100 and the inner pulley 200 are coupled to each other. 100) and the inner pulley 200 are adjusted.

For example, when the ball 300 is positioned in the middle in the longitudinal direction in a state where the outer pulley 100 and the inner pulley 200 are assembled, the ball 300 is selectively moved toward either the left or right So that the torque can be transmitted.

When the ball 300 is positioned on the left or right side, the moving distance of the ball 300 is increased, and the time of t seconds during which the relative rotation is performed can be relatively increased. Thus, the designer can selectively control the ball according to the specification of the hybrid alternator have.

Also, one or more balls 300 are used, and two or more balls 300 are used for stable operation, and the number of balls 300 is not limited thereto.

The shaft 400 is inserted into the inner pulley 200 and extends toward the alternator. A first bearing 500 is provided on the right side of the shaft 400 to guide the outer pulley 100, As shown in Fig.

A nut 600 is installed on the left side of the shaft 400. The nut 600 closely contacts the inner pulley 200 and prevents movement in the axial direction as the inner pulley 200 rotates do. Therefore, even when the outer pulley 100 and the inner pulley 200 rotate relative to each other, the movement in the axial direction is prevented.

Referring to FIG. 3, a fixed key 700 is provided between the shaft 400 and the inner pulley 200 to maintain the fixed state between the shaft 400 and the inner pulley 200 according to the present embodiment. The axial movement of the inner pulley 200 does not occur.

The support ring 800 is provided at one inner side of the outer pulley 100 with a support ring for dispersing the axial stress of the ball 300 to minimize the axial stress applied to the ball 300 have. The support ring 800 may be a C-ring but may have a different configuration.

A pulley assembly for a hybrid alternator according to another embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 4, a pulley assembly for a hybrid alternator according to another embodiment of the present invention includes a first groove portion 1100 formed on the outer circumferential surface thereof and a spiral-shaped first groove portion 1100 along its length in the circumferential direction An outer pulley 1000 and an inner pulley 200 inserted into the outer pulley 1000 and having a second groove 2100 formed on the outer circumferential surface thereof in a spiral shape along the longitudinal direction in a direction opposite to the first groove 1100, And a second groove portion 2100. The outer pulley 1000 and the inner pulley 2000 rotate in a direction opposite to the rotation direction of the inner pulley 2000, A ball 3000 selectively transmitting to one of the outer pulley 1000 and the inner pulley 2000 and having a plurality of open through holes 3100 inserted therein, Alternator Oil layer 10 formed by the sun and the elongated shaft (4000), injected into the first and second groove (1100, 2100) for damping of the movement of the ball (3000) Oil; And an oil seal (20) provided between the outer pulley (1000) and the inner pulley (2000) to prevent leakage of the oil.

The outer pulley 1000 has a thread formed on the outer circumferential surface thereof and receives the rotational force through the pulley and transmits the torque to the shaft 4000 to be described later. The inner circumferential surface of the outer pulley 1000 is formed with a first groove portion 1100 having a spiral shape along the longitudinal direction in the circumferential direction .

The first trench 1100 may have a semicircular cross section, but may have other shapes, and the size of the first trench 1100 is not limited to the sizes shown in the drawings.

The first groove portion 1100 is formed in a right-hand screw direction and is disposed in a predetermined interval in the longitudinal direction of the inner circumferential surface of the outer pulley 1000 to be relatively rotated with an inner pulley to be described later.

The inner pulley 2000 is inserted into the outer pulley 100 and a second groove 2100 is formed on the outer circumferential surface of the inner pulley 2000 in a spiral shape along the longitudinal direction in a direction opposite to the first groove 1100.

The second trench 2100 may have a semicircular cross section, but may have other shapes, and the size of the second trench 2100 is not limited to the dimensions shown in the drawings.

The second groove 2100 is formed in a right-hand direction, which is opposite to the direction of the first groove 1100, and is disposed at a predetermined interval in the longitudinal direction of the inner circumferential surface of the outer pulley 1000.

The first groove portion 1100 and the second groove portion 2100 according to the present embodiment are formed in the same cross sectional shape and inserted into the inner space formed in the first and second groove portions 1100 and 2100, And a ball 3000 for selectively transmitting a rotational force generated in different rotational directions to either the outer pulley 1000 or the inner pulley 2000 according to the relative rotation of the inner pulley 2000 .

The ball 300 may be made of steel or made of other materials and may have a structure that does not cause wear and deformation due to rolling contact in the first and second trenches 1100 and 2100.

The ball 3000 is formed with a plurality of through holes 3100 that are open for the flow of oil having a specific viscosity so that the through hole 3100 is formed while the outer pulley 1000 and the inner pulley 2000 are rotated relative to each other, Damping can be effected through the rotation of the pulley assembly, which minimizes the shock that may be caused by the sudden turning of the rotary shaft, thereby minimizing damage to the belt or failure or damage to the pulley assembly.

The outer pulley 1000 and the inner pulley 2000 perform stable operation of the hybrid alternator through relative rotation of the outer pulley 1000 and the inner pulley 2000. The ball 3000 is rotated by the rotation force transmitted from the outer pulley to the inner pulley 2000, And serves as an intermediary for transmitting the rotational force transmitted to the outer pulley 1000.

The oil seal 20 is installed at a position shown in the figure for stable maintenance of the oil layer 10 and is not particularly limited in material and structure, and may be varied depending on the structure in which the outer pulley 1000 and the inner pulley 2000 are assembled .

The oil layer 10 prevents friction and abrasion due to stable rotation and rotation of the bearing 300, thereby minimizing deformation due to the durability and impact of the ball 3000.

The oil seal 20 prevents leakage of oil constituting the oil layer 10 to prevent a lubricating performance deterioration due to oil shortage, thereby improving the durability of the ball 3000 and suppressing the noise vibration as much as possible.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

The moving state of the ball according to the operating state of the inner pulley and the outer pulley will be described with reference to other drawings. For reference, a thin solid line shows an inner pulley, and a dash-dotted line shows an outer pulley.

5, the ball 300 is positioned at 6 o'clock with respect to the current clockwise direction. When the inner pulley 200 is rotated counterclockwise in this state, the inner pulley 200 and the screw The combined outer pulley 100 also rotates counterclockwise in counterclockwise direction to transfer torque (a state).

When the inner pulley 200 and the outer pulley 100 rotate relative to each other so that torque transmission is performed between the inner pulley 200 and the outer pulley 100, The ball 300 continuously rotates in the clockwise direction and the inner pulley 200 moves in the rotating direction of the inner pulley 200 along the outer pulley 100 in the states c and d.

When the inner pulley 200 is continuously rotated, the ball 300 is moved to a position at 12 o'clock as viewed from the front as shown in the state e, and the inner pulley 200 is rotated clockwise The impact generated due to the change of the momentary rotation direction for t seconds occurring from the state where the rotation direction is changed to the state where the rotation is stopped (state e) And relative rotation between the inner pulley (200) and the outer pulley (100), the support is remarkably supported and dispersed to prevent the belt from being damaged.

Therefore, even when an impact is generated when the inner pulley 200 is rotated in the reverse rotation direction other than the normal rotation direction, the relative rotation between the inner pulley 200 and the outer pulley 100 can be performed The structure can alleviate the impact.

10: Oil layer
20: Oil seal
100: Outer pulley
110: first groove
200: Inner pulley
210: second groove
300: view
400: shaft
500: first bearing
600: Nut
700: fixed key
800: Support ring

Claims (10)

An outer pulley in which a thread is formed on an outer circumferential surface, and an inner circumferential surface is formed with a first groove portion having a helical shape along a longitudinal direction in a circumferential direction;
An inner pulley inserted into the outer pulley and having a second groove formed on an outer circumferential surface of the outer pulley in a direction opposite to the first groove along a longitudinal direction;
The outer pulley and the inner pulley are inserted into a space formed by the first groove portion and the second groove portion and selectively transmit rotational force generated in different rotational directions to either the outer pulley or the inner pulley in accordance with the relative rotation of the outer pulley and the inner pulley Ball; And
And a shaft inserted into the inner pulley and extending toward the alternator. The method according to claim 1,
The first and second grooves
Wherein the cross section of the pulley assembly is formed in a semicircular cross section. The method according to claim 1,
When the first groove portion is formed in the right screw direction, the second groove portion is formed in the left screw direction,
Wherein when the first groove portion is formed in the left screw direction, the second groove portion is formed in the right screw direction. The method according to claim 1,
The ball,
Wherein the outer pulley and the inner pulley are selectively positioned at an intermediate position or one side with respect to the longitudinal direction in a state where the outer pulley and the inner pulley are engaged. The method according to claim 1,
The ball,
One or a plurality of the pulleys are inserted into the pulleys. The method according to claim 1,
And a first bearing inserted into the shaft and positioned at one end with respect to an inner longitudinal direction of the outer pulley and rolling in contact with an inner circumferential surface of the outer pulley. The method according to claim 1,
Further comprising: a nut inserted into the shaft and closely attached to the inner pulley to prevent movement in the axial direction as the inner pulley rotates. ≪ Desc / Clms Page number 19 > The method according to claim 1,
Wherein a fixed key is provided between the shaft and the inner pulley so as to maintain the fixed state between the shaft and the inner pulley. The method according to claim 1,
And a support ring for dispersing an axial stress of the ball is provided at an inner end of the outer pulley. An outer pulley in which a thread is formed on an outer circumferential surface, and an inner circumferential surface is formed with a first groove portion having a helical shape along a longitudinal direction in a circumferential direction;
An inner pulley inserted into the outer pulley and having a second groove formed on an outer circumferential surface of the outer pulley in a direction opposite to the first groove along a longitudinal direction;
The outer pulley and the inner pulley are selectively inserted into a space formed by the first groove portion and the second groove portion and rotational force generated in different rotational directions in accordance with relative rotation of the outer pulley and the inner pulley is selectively transmitted to either the outer pulley or the inner pulley A ball comprising a plurality of open apertures;
A shaft inserted into the inner pulley and extending toward the alternator;
An oil layer formed by the oil injected into the first and second grooves for damping as the ball moves; And
And an oil seal provided between the outer pulley and the inner pulley to prevent leakage of the oil.


KR1020150141013A 2015-10-07 2015-10-07 Hybrid alternator pulley assembly KR101739197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150141013A KR101739197B1 (en) 2015-10-07 2015-10-07 Hybrid alternator pulley assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150141013A KR101739197B1 (en) 2015-10-07 2015-10-07 Hybrid alternator pulley assembly

Publications (2)

Publication Number Publication Date
KR20170041505A KR20170041505A (en) 2017-04-17
KR101739197B1 true KR101739197B1 (en) 2017-05-23

Family

ID=58703012

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150141013A KR101739197B1 (en) 2015-10-07 2015-10-07 Hybrid alternator pulley assembly

Country Status (1)

Country Link
KR (1) KR101739197B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015942A1 (en) 1989-06-13 1990-12-27 Gkn Automotive, Inc. Variable diameter pulley assembly
JP2005249036A (en) 2004-03-03 2005-09-15 Koyo Seiko Co Ltd Ball screw device
JP2006308038A (en) 2005-05-02 2006-11-09 Nsk Ltd Idler pulley unit
JP2010053883A (en) 2008-08-26 2010-03-11 Ntn Corp Pulley unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015942A1 (en) 1989-06-13 1990-12-27 Gkn Automotive, Inc. Variable diameter pulley assembly
JP2005249036A (en) 2004-03-03 2005-09-15 Koyo Seiko Co Ltd Ball screw device
JP2006308038A (en) 2005-05-02 2006-11-09 Nsk Ltd Idler pulley unit
JP2010053883A (en) 2008-08-26 2010-03-11 Ntn Corp Pulley unit

Also Published As

Publication number Publication date
KR20170041505A (en) 2017-04-17

Similar Documents

Publication Publication Date Title
EP2180214A1 (en) Sealing device for gear chamber
CN212677022U (en) Power assembly
KR100571156B1 (en) Hybrid bearings
KR20170073921A (en) Reducer for vehicle
KR101739197B1 (en) Hybrid alternator pulley assembly
JP2007232164A (en) Torque transmitting apparatus
KR101680157B1 (en) Power transmission apparatus for a compressor
RU2714358C2 (en) Fan drive for vehicle
CN108488342A (en) A kind of planetary roller screw pair having both vibration damping and refrigerating function
JP2007138966A (en) Rolling bearing and its incorporation device
KR20080055428A (en) Fan drive system for bus
KR100784045B1 (en) Continuous variable transmission
JP2016161068A (en) Stepless speed change device and actuator
CN109281789B (en) Starter speed reducer
JP2008202739A (en) Pulley structure
KR20160125642A (en) Worm geared speed reducer
EP0993098A2 (en) Device for regulating an electric generator used in a vehicle
CN108223769B (en) Double-motor power system for automobile, gearbox and automobile
KR100391129B1 (en) Rotary shaft device for lubricating improvement of bearing
US12040691B2 (en) Electrical machine comprising a cooling and or lubricating system having a wet chamber, motor vehicle having an electrical machine
KR100834220B1 (en) Constant velocity joint of cooling and radiant heat structure
US20220231578A1 (en) Electrical machine comprising a cooling and or lubricating system having a wet chamber, motor vehicle having an electrical machine
KR101866098B1 (en) Reducer for vehicle
KR100559853B1 (en) revolution speed variable type air-con compressor
JP2004257535A (en) Power transmission device

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant