CN108278342B - tensioner - Google Patents
tensioner Download PDFInfo
- Publication number
- CN108278342B CN108278342B CN201711500453.0A CN201711500453A CN108278342B CN 108278342 B CN108278342 B CN 108278342B CN 201711500453 A CN201711500453 A CN 201711500453A CN 108278342 B CN108278342 B CN 108278342B
- Authority
- CN
- China
- Prior art keywords
- tensioner
- hole
- shaft
- engine
- rotating
- 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.)
- Active
Links
- 238000013016 damping Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0842—Mounting or support of tensioner
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a tensioner which is simple in structure and convenient to position and identify the nominal position of the tensioner, wherein an identification hole is formed in a radial protruding part of a rotating part of the tensioner, a positioning hole and an indication mark are formed in a radial protruding part of a fixed part of the tensioner, a positioning pin is inserted into the identification hole and the positioning hole before the tensioner is assembled to an engine, the positioning pin is pulled out after the tensioner is assembled to the engine, and the identification hole is aligned with the indication mark when the rotating part of the tensioner is positioned at the nominal position.
Description
Technical Field
The present invention relates to a tensioner, particularly a tensioner for tensioning a belt in an automotive timing drive system.
Background
Tensioners are well known devices commonly used in a variety of belt drive systems to apply proper tension to the drive belt to maintain the drive system tension at a proper level at all times, and tensioners in current engine timing systems primarily maintain the tension of the timing belt and the length of the belt, maintain synchronous operation of the timing belt, and prevent engine damage caused by timing system tooth skip.
Because of the space constraints of engine timing systems, timing tensioners for engine drive systems are generally more compact than accessory tensioners, and the arrangement of components and function indicators is greatly limited, timing tensioners typically include a pointer for identifying the nominal position of the tensioner, and the pointer is set as in chinese patent No.: as indicated by reference numeral 60 in CN1311172C, when the pointer 60 is aligned with the groove 72, the tensioner is in the nominal position, and the head of the pointer is often partially shielded by other parts of the engine due to space limitations, so that it cannot be determined whether the pointer is aligned with the groove, and thus it cannot be confirmed whether the tensioner is mounted in the nominal position. In addition, the locking mechanism of the tensioner, i.e., the positioning pin 34, is disposed inside the tensioner arm, and the structure is complex and the processing is difficult.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a tensioner with a simple structure, which can simply lock a tensioner base and a tensioner arm and can conveniently confirm the nominal position of the tensioner.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a tensioner, comprising:
a fixed member 20, an eccentric adjustment member 12, a rotary member 50, a biasing member 3, and a pulley assembly 40;
a fixing member 20 provided to be mounted on an engine mounting surface or an engine bracket mounting surface, the fixing member 20 having a shaft 1;
an eccentric adjustment member 12 coaxially coupled with the shaft 1;
a rotary member 50 pivotally mounted to the shaft 1;
and a biasing member 3 biasing the rotating member 50 to rotate relative to the fixed member 20;
a pulley assembly 40 rotatably mounted to the rotary member 50;
a positioning pin 7;
the radial direction of the fixed part is provided with a protruding part A, the radial direction of the rotating part is provided with a protruding part B, the radial protruding part B of the rotating part is provided with a recognition hole c, and the radial protruding part A of the fixed part is provided with a positioning hole e and an indication mark f;
before the tensioner is installed on the engine, the locating pin 7 is inserted into the locating hole e and the identifying hole c;
when the tensioner is mounted to the engine and the tensioner rotating member is in the nominal position, the identification hole c is aligned with the indicator mark f.
Preferably, to increase the damping force of the tensioner, stability of operation of the tensioner is provided, the tensioner further comprising a damping member.
Preferably, the tensioner further comprises an axial pressurization member.
Preferably, the pressurizing member is a wave spring.
Preferably, the protrusion B includes a pointer.
Preferably, the indication marks are grooves.
Preferably, the indication mark is a round hole.
Preferably, the protruding part B further includes a tool hole thereon.
Compared with the prior art, the invention has the beneficial effects that: the tensioner can realize the function of one hole with multiple functions, can facilitate the installation and the disassembly of the tensioner, can also facilitate the observation of whether the installed tensioner is at the nominal position, is convenient for adjusting the tensioner, and has a simpler and more convenient structure.
Drawings
Fig. 1 is a cross-sectional view of a tensioner of a first embodiment.
Fig. 2 is a front view of the tensioner of the first embodiment when inserted into a dowel.
Fig. 3 is a cross-sectional view of a tensioner of a second embodiment.
Fig. 4 is a front view of the tensioner of the second embodiment in a nominal position.
Fig. 5 is a schematic view of a protrusion B of an alternative embodiment of the tensioner.
Detailed Description
As shown in fig. 1 and 2, the tensioner includes a fixing member 20, a biasing member 3, an eccentric adjustment member 12, a rotating member 50 and a pulley assembly 40, and is configured such that the fixing member 20 is fixed to an engine mount surface or an engine bracket mount surface by bolts (not shown).
The fixing member 20 includes a shaft 1 and a base 2, and the shaft 1 and the base 2 are fixedly connected. Alternatively, the shaft and the base may be integrally provided.
The rotating member 50 generally includes a rotating arm 6, the rotating arm 6 having a hollow cylindrical shape inside, and a cylindrical inner wall pivotally mounted to an outer diameter of the shaft 1 to rotate about the shaft 1. Since the shaft 1 and the rotating arm 6 are usually made of metal materials, the rotating member 50 includes a shaft sleeve 10 disposed between the shaft 1 and the rotating arm for solving the problems of wear and noise on the joint surface of the shaft 1 and the rotating arm 6.
The biasing member 3, such as a torsion spring shown in fig. 1, is generally coaxially disposed about the periphery of the shaft 1 and axially between the fixed member 20 and the rotating member 50, with one end of the torsion spring being connected to the base 2 and the other end being connected to the rotating arm 6, and the torsion spring biasing the rotating arm 6 relative to the base to rotate the rotating member 50 relative to the fixed member 20. The tensioner is generally provided with a structure for limiting the rotation angle, which will not be described here. In this embodiment, a washer 15 is further disposed between the torsion spring and the base 2, so as to reduce wear on the contact surface between the base and the spring, and generate a certain damping effect together with the sleeve 10.
The eccentric adjusting member 12 has an eccentric shaft, and the eccentric shaft of the eccentric adjusting member 12 is coaxially combined with the shaft 1, and during installation, the shaft of the eccentric adjusting member 12 is adjusted to adjust the eccentric position of the shaft 1, so that the tensioning force of the tensioner can be adjusted.
The pulley assembly 40 includes a pulley 9 and a bearing 8, the bearing 8 being mounted to an outer diameter of the rotating arm 6 and rotatable about the rotating arm 6. In this embodiment, as shown in fig. 1, a damper 11 is provided to increase the damping force of the tensioner and to improve the stability of the operation of the tensioner, but this is not a limitation of the tensioner, and some tensioners do not include this member.
The base 2 has a radially extending protrusion a, and the protrusion a has a positioning hole e (which is blocked in fig. 2 and can be seen in fig. 4) and an indication mark f, which in this embodiment is exemplified by a groove; the indication mark can also be a round hole. The rotary arm 6 is provided with a projection B, and the projection B is provided with an identification hole c (overlapping with the positioning hole e in fig. 2). Typically, before the tensioner is mounted to the engine, the identification hole c is aligned with the positioning hole e, the positioning pin 7 is inserted, and the positioning pin 7 overcomes the biasing force of the biasing member 3, i.e., the torsion spring, to fix the fixed part and the rotating part of the tensioner relatively; when the tensioner is assembled to the engine, the dowel pin 7 is pulled out, the biasing member forces the tensioner arm to rotate, the bias adjustment member is adjusted, and the tensioner is fixed so that the tensioner arm rotates to a nominal position under the coaction of the belt, at which time the identification hole c on the tensioner tab B is aligned with the groove on the tab a, as shown in fig. 4, and a determination can be made as to whether the tensioner is in the nominal position.
Fig. 3 and 4 are schematic views of a tensioner of a second embodiment, which is further improved in damping than the tensioner of the first embodiment, and which includes a stationary member 20, an eccentric adjustment member 12, a rotating member 50, a biasing member 3, and a pulley assembly 40.
The fixing member 20 includes a shaft 1 and a base 2, and the shaft 1 and the base 2 are fixedly connected to each other and are mounted on an engine mount surface, which is the latter engine mount surface, by bolts.
The rotating member 50 includes a rotating arm 6, the rotating arm 6 being pivotally mounted to the outer diameter of the shaft 1 to rotate about the shaft 1. The rotating member 50 includes a shaft housing 10 provided between the shaft 1 and the rotating arm.
And a biasing member 3 coaxially provided on the outer circumference of the shaft 1 and axially interposed between the fixed member 20 and the rotating member 50, one end of which is connected to the base 2 and the other end of which is connected to the rotating arm 6, and which biases the rotating arm to rotate relative to the fixed member.
The eccentric adjusting member 12 is coaxially combined with the shaft 1, and in the installation process, the shaft of the eccentric adjusting member is adjusted for adjusting the eccentric position of the shaft 1, so that the tensioning force of the tensioner can be adjusted.
The pulley assembly 40 includes a pulley 9 and a bearing 8, the bearing 8 being mounted to an outer diameter of the rotating arm 6 and rotatable about the rotating arm 6.
The tensioner further comprises a lower damping member 4, an upper damping member 11 and a pressurizing member arranged between the lower damping member and the rotating arm 6, wherein the lower damping member 4, the upper damping member 11 and the pressurizing member are positioned on the upper and lower opposite ends of the shaft 1, the pressurizing member can be a coil spring, a butterfly spring and the like, the waveform spring comprises a plurality of coils or a vortex ring, each coil or each vortex ring has a waveform outline, the lower damping member 4 and the upper damping member 11 are loaded through the compressed waveform spring 5, compared with the first embodiment, the damping force of the tensioner is increased, the abrasion and the configuration tolerance can be compensated due to the fact that the waveform spring is in partial contact, the manufacturing difficulty is reduced, and specific working modes and structures can refer to publication numbers: chinese patent CN104822970 a.
Fig. 3 shows a schematic cross-sectional view of the tensioner before being mounted to the engine, and it can be seen in conjunction with fig. 2 that the positioning pin 7 is inserted into the positioning hole e of the protrusion a and the identification hole c of the protrusion B, and the tensioner rotating member is fixed with respect to the fixing member.
Fig. 4 shows a state after the tensioner is assembled to the engine, after the positioning pin 7 is pulled out (the belt illustration is omitted here), whether or not to align with the indication mark f can be judged by the recognition hole c on the protrusion B for recognizing the nominal position of the tensioner.
As shown in fig. 1-4, the projection B may also be provided in the form of a pointer, which when aligned with the groove, the tensioner is in a nominal position for ease of viewing.
Alternatively, the tensioner protrusion B may be provided as shown in fig. 5, including a tool hole h, when the tensioner is disassembled, the positioning hole e is hardly aligned with the identification hole c due to the biasing force of the torsion spring, the tensioner arm needs to be twisted by means of an external force, at this time, the tool is inserted into the tool hole, the rotating arm is rotated by pulling the tool, and when the identification hole c is aligned with the positioning hole e, the positioning pin is inserted, so that the tensioner is restored to the pre-assembly state, thereby facilitating the disassembly of the tensioner.
The above embodiments are provided for understanding the structure and operation of the tensioner, and are not intended to limit the tensioner, and insubstantial modifications by those skilled in the art are within the scope of the invention.
Claims (8)
1. A tensioner, comprising:
a fixed part (20), an eccentric adjusting part (12), a rotating part (50), a biasing part (3) and a belt wheel assembly (40);
the fixing part (20) is arranged to be mounted on an engine mounting surface or an engine bracket mounting surface, and the fixing part (20) is provided with a shaft (1);
an eccentric adjustment member (12) coaxially associated with the shaft (1);
a rotary member (50) pivotally mounted to the shaft (1);
a biasing member (3) that biases the rotating member (50) to rotate relative to the fixed member (20);
a pulley assembly (40) rotatably mounted to the rotary member (50);
a positioning pin (7);
the rotary part is characterized in that the fixing part is radially provided with a protruding part (A), the rotary part is radially provided with a protruding part (B), the protruding part (B) of the rotary part is provided with an identification hole (c), and the protruding part (A) of the fixing part is provided with a positioning hole (e) and an indication mark (f);
the locating pin (7) is inserted into the locating hole (e) and the identification hole (c) before the tensioner is installed on the engine;
the identification aperture (c) is aligned with the indicator (f) when the tensioner rotating member is in a nominal position after the tensioner is mounted to the engine.
2. The tensioner as in claim 1, further comprising a damping member.
3. The tensioner as in claim 1, further comprising an axial pressurization member.
4. The tensioner as in claim 3, wherein the pressure increasing member is a wave spring.
5. Tensioner according to claim 1, characterized in that the projection (B) comprises a pointer.
6. The tensioner as in claim 1, wherein the indication is identified as a groove.
7. The tensioner as in claim 1, wherein the indication is identified as a circular hole.
8. Tensioner according to claim 1, characterised in that the projection (B) also comprises a tool hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500453.0A CN108278342B (en) | 2017-12-26 | 2017-12-26 | tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711500453.0A CN108278342B (en) | 2017-12-26 | 2017-12-26 | tensioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278342A CN108278342A (en) | 2018-07-13 |
| CN108278342B true CN108278342B (en) | 2023-11-07 |
Family
ID=62802892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711500453.0A Active CN108278342B (en) | 2017-12-26 | 2017-12-26 | tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278342B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186686B (en) * | 2019-06-20 | 2021-07-20 | 安徽瑞研新材料技术研究院有限公司 | Plugging head assembly of hole detector |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270742A (en) * | 1995-03-28 | 1996-10-15 | Unitta Co Ltd | Belt tensioner |
| JP2002174307A (en) * | 2000-12-07 | 2002-06-21 | Ntn Corp | Auto-tensioner |
| EP1273826A2 (en) * | 2001-07-07 | 2003-01-08 | INA-Schaeffler KG | Tensioner |
| WO2003012317A1 (en) * | 2001-07-31 | 2003-02-13 | Litens Automotive Partnership | Belt tensioner with installation pin |
| JP2005299821A (en) * | 2004-04-13 | 2005-10-27 | Honda Motor Co Ltd | Tensioner lifter |
| CA2577080A1 (en) * | 2004-09-01 | 2006-03-09 | Litens Automotive Partnership | Tensioner for a timing chain |
| JP2006125506A (en) * | 2004-10-28 | 2006-05-18 | Ntn Corp | Chain tensioner |
| WO2006076799A1 (en) * | 2005-01-19 | 2006-07-27 | Litens Automotive Partnership | Timing belt tensioner |
| JP2007270972A (en) * | 2006-03-31 | 2007-10-18 | Ntn Corp | Belt tension adjusting device |
| JP2008240847A (en) * | 2007-03-27 | 2008-10-09 | Honda Motor Co Ltd | Automatic tensioner |
| CN101641533A (en) * | 2007-03-23 | 2010-02-03 | 盖茨公司 | Tensioner |
| EP2251565A2 (en) * | 2009-05-14 | 2010-11-17 | NTN Corporation | Chain tensioner |
| CN201705872U (en) * | 2010-06-24 | 2011-01-12 | 重庆长安汽车股份有限公司 | Accessory belt tension device of engine accessory gear train |
| CN102261443A (en) * | 2010-05-27 | 2011-11-30 | 盖茨优霓塔传动系统(苏州)有限公司 | Tensioner |
| CN103492754A (en) * | 2011-04-21 | 2014-01-01 | 谢夫勒科技股份两合公司 | Belt tensioner |
| DE102013213127A1 (en) * | 2013-07-04 | 2015-01-08 | Contitech Antriebssysteme Gmbh | Auxiliary belt drive of an internal combustion engine |
| CN104822970A (en) * | 2012-10-24 | 2015-08-05 | 盖茨公司 | Tensioner |
| CN204692481U (en) * | 2015-05-23 | 2015-10-07 | 盖茨优霓塔传动系统（上海）有限公司 | Stretcher |
| CN105422765A (en) * | 2015-11-26 | 2016-03-23 | 奇瑞汽车股份有限公司 | Tensioning wheel assembly for facilitating replacement of timing toothed belt and mounting and replacing method for timing toothed belt |
| CN105518340A (en) * | 2013-09-11 | 2016-04-20 | 利滕斯汽车合伙公司 | Tensioner with increased damping and arm on base cup configuration |
| KR20170085636A (en) * | 2016-01-14 | 2017-07-25 | 지엠비코리아 주식회사 | Belt tesioner |
| CN207830483U (en) * | 2017-12-26 | 2018-09-07 | 盖茨优霓塔传动系统（上海）有限公司 | Stretcher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2602373C (en) * | 2005-03-21 | 2015-04-14 | Litens Automotive Partnership | Tensioner with reinstallation feature |
-
2017
- 2017-12-26 CN CN201711500453.0A patent/CN108278342B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270742A (en) * | 1995-03-28 | 1996-10-15 | Unitta Co Ltd | Belt tensioner |
| JP2002174307A (en) * | 2000-12-07 | 2002-06-21 | Ntn Corp | Auto-tensioner |
| EP1273826A2 (en) * | 2001-07-07 | 2003-01-08 | INA-Schaeffler KG | Tensioner |
| WO2003012317A1 (en) * | 2001-07-31 | 2003-02-13 | Litens Automotive Partnership | Belt tensioner with installation pin |
| CN1537206A (en) * | 2001-07-31 | 2004-10-13 | ���﹫˾ | Belt tensioner with installation pin |
| JP2005299821A (en) * | 2004-04-13 | 2005-10-27 | Honda Motor Co Ltd | Tensioner lifter |
| CA2577080A1 (en) * | 2004-09-01 | 2006-03-09 | Litens Automotive Partnership | Tensioner for a timing chain |
| JP2006125506A (en) * | 2004-10-28 | 2006-05-18 | Ntn Corp | Chain tensioner |
| WO2006076799A1 (en) * | 2005-01-19 | 2006-07-27 | Litens Automotive Partnership | Timing belt tensioner |
| JP2007270972A (en) * | 2006-03-31 | 2007-10-18 | Ntn Corp | Belt tension adjusting device |
| CN101641533A (en) * | 2007-03-23 | 2010-02-03 | 盖茨公司 | Tensioner |
| JP2008240847A (en) * | 2007-03-27 | 2008-10-09 | Honda Motor Co Ltd | Automatic tensioner |
| EP2251565A2 (en) * | 2009-05-14 | 2010-11-17 | NTN Corporation | Chain tensioner |
| CN102261443A (en) * | 2010-05-27 | 2011-11-30 | 盖茨优霓塔传动系统(苏州)有限公司 | Tensioner |
| CN201705872U (en) * | 2010-06-24 | 2011-01-12 | 重庆长安汽车股份有限公司 | Accessory belt tension device of engine accessory gear train |
| CN103492754A (en) * | 2011-04-21 | 2014-01-01 | 谢夫勒科技股份两合公司 | Belt tensioner |
| CN104822970A (en) * | 2012-10-24 | 2015-08-05 | 盖茨公司 | Tensioner |
| DE102013213127A1 (en) * | 2013-07-04 | 2015-01-08 | Contitech Antriebssysteme Gmbh | Auxiliary belt drive of an internal combustion engine |
| CN105518340A (en) * | 2013-09-11 | 2016-04-20 | 利滕斯汽车合伙公司 | Tensioner with increased damping and arm on base cup configuration |
| CN204692481U (en) * | 2015-05-23 | 2015-10-07 | 盖茨优霓塔传动系统（上海）有限公司 | Stretcher |
| CN105422765A (en) * | 2015-11-26 | 2016-03-23 | 奇瑞汽车股份有限公司 | Tensioning wheel assembly for facilitating replacement of timing toothed belt and mounting and replacing method for timing toothed belt |
| KR20170085636A (en) * | 2016-01-14 | 2017-07-25 | 지엠비코리아 주식회사 | Belt tesioner |
| CN207830483U (en) * | 2017-12-26 | 2018-09-07 | 盖茨优霓塔传动系统（上海）有限公司 | Stretcher |
Non-Patent Citations (2)
| Title |
|---|
| 摩托车发动机正时链常用张紧装置;王苏生;小型内燃机与摩托车(第04期);全文 * |
| 汽车发动机带张紧器的倾角测量方法改进;周英杰;;机械传动(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108278342A (en) | 2018-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3199834B1 (en) | Pulley device for a belt, installation method of such a device and motor vehicle equipped with such a device | |
| US6932731B2 (en) | Tensioner | |
| KR100464572B1 (en) | Tensioning device for traction means, especially a belt tensioning device | |
| US8083623B2 (en) | Shoe tensioner for a synchronous belt drive for use with oil | |
| US6371874B1 (en) | Sprocket equipped with cushion body | |
| KR20040030881A (en) | Belt tensioner with installation pin | |
| KR20130102040A (en) | Eccentric idler pulley | |
| CN101147013A (en) | Tensioner with reinstallation feature | |
| US9394977B2 (en) | Tensioner with expanding spring for radial frictional asymmetric damping | |
| US9249866B2 (en) | Belt tensioner for a power transmission belt system | |
| CN108278342B (en) | tensioner | |
| CN110230682B (en) | Belt pulley device for a tensioning or winding roller | |
| JPH10252843A (en) | Tensile device for belt, especially for toothed belt | |
| CN110621910B (en) | Accessory drive for an internal combustion engine of a motor vehicle | |
| US20070114863A1 (en) | Brushless motor | |
| CN207830483U (en) | Stretcher | |
| JP4246524B2 (en) | Spring seat and auto tensioner | |
| JPH10252844A (en) | Tensile device for belt, especially for toothed belt | |
| US5030170A (en) | Belt or chain tensioner for power transmitting system | |
| KR101763512B1 (en) | Belt tesioner | |
| US20230349449A1 (en) | Tensioner adjuster | |
| US5037358A (en) | Belt or chain tensioner for power transmitting system | |
| JPH08270742A (en) | Belt tensioner | |
| CN214197130U (en) | Timing tensioner | |
| JP7336391B2 (en) | auto tensioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |