CN106438884A - Timing chain tensioner with constant pressure control valve - Google Patents
Timing chain tensioner with constant pressure control valve Download PDFInfo
- Publication number
- CN106438884A CN106438884A CN201610932474.9A CN201610932474A CN106438884A CN 106438884 A CN106438884 A CN 106438884A CN 201610932474 A CN201610932474 A CN 201610932474A CN 106438884 A CN106438884 A CN 106438884A
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- China
- Prior art keywords
- control valve
- valve
- constant
- sliding seat
- pressure control
- Prior art date
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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
- F16H2007/0876—Control or adjustment of actuators
Abstract
The invention provides a timing chain tensioner with a constant pressure control valve. The timing chain tensioner with the constant pressure control valve comprises a shell, a plunger piston, a reset spring and a constant pressure control valve; the plunger piston is matched with the inner cavity of the shell to form an oil pressure damping clearance; a tensioner high pressure cavity is formed between the plunger piston and the shell; a main through hole and a first through hole are respectively formed in the constant pressure control valve; the first through hole is communicated with the tensioner high pressure cavity; the constant pressure control valve is fixedly mounted in the tensioner high pressure cavity; the reset spring is mounted between the constant pressure control valve and the plunger piston. The timing chain tensioner with the constant pressure control valve is applied to a timing transmission system of an engine; when the working condition of the engine changes suddenly and the oil pressure in the tensioner high pressure cavity is higher than a preset value, the tensioner can relieve pressure automatically in time, so that the pressure in the tensioner high pressure cavity is ensured in a constant pressure state; the friction loss caused when the timing transmission system of the engine works is favourably reduced; the service life of the timing transmission system of the engine is prolonged, and the fuel economy performance of the timing transmission system of the engine is improved.
Description
Technical field
The present invention relates to timing chain tensioner technical field, especially relate to a kind of timing chain with constant-pressure control valve
Stretcher.
Background technology
Timing chain tensioner is widely used in the correct time chain driving system of electromotor, and it passes through internal hydraulic pressure power
Vibratory impulse in buffer chain transmission process, with impacting of reducing that each part in drive system is subject to, extends timing transmission system
The service life of system is it is ensured that be driven is accurately and reliable, and reduces drive noise, improves the comfortableness of driving.
But, in engine timing chain drive system work process, if during engine operating condition mutation, timing chain
Plunger in stretcher by severe impact, will make the high pressure intracavity of timing chain tensioner produce continuous high-pressure, this high pressure pressure
If power cannot discharge in time, great reversed load will be produced to timing chain, guide rail.Because guide rail of the prior art leads to
It is often to adopt made of plastic, its abrasion resistance and heat-resisting quantity are all far below the timing chain that metal is made, therefore, if started
Machine correct time chain driving system is chronically at and works under this operating mode of big shock loading, will make guide rail rubbed out groove or
Rugged surface, thus lead to following consequence：
(1) guidance quality, making guide rail is deteriorated, and then makes the vibration aggravation in transmission for the timing chain, is just leading to electromotor
When chain transmission system operating mode more unstable.
(2), make the abrasion aggravation of timing chain, guide rail, lead to the working life of engine timing chain drive system to subtract
Short.
(3), timing chain elongates because of abrasion, it is possible that jumping tooth or risk of breakage, so that engine stop is worked
Or damage.
(4), timing chain will lead to the output of electromotor to decline because bearing the larger resistance of motion, thus reducing
The fuel economy of electromotor.
Content of the invention
The technical problem to be solved in the present invention is：The problem existing for prior art, provides a kind of band constant-pressure control valve
Timing chain tensioner, when the hypertonia of stretcher high pressure intracavity, releasing pressure automatically can be carried out in time, to ensure tensioning
The pressure of device high pressure intracavity is in pressure constant state.
The technical problem to be solved in the present invention employs the following technical solutions to realize：A kind of timing chain with constant-pressure control valve
Bar stretcher, including housing, plunger and back-moving spring and constant-pressure control valve, described plunger and housing cavity coordinate and form oil
Pressure damping clearance, between plunger and housing formed stretcher high pressure chest, described constant-pressure control valve is formed respectively main through hole and
First through hole, described first through hole is communicated with stretcher high pressure chest, and described constant-pressure control valve is fixedly mounted on stretcher high pressure chest
Interior, described back-moving spring is arranged between constant-pressure control valve and plunger；When the pressure of stretcher high pressure intracavity is higher than setting value,
Form pressure release passage between described stretcher high pressure chest, first through hole, main through hole, and until the pressure of stretcher high pressure intracavity is extensive
Arrive setting value again.
Preferably, described constant-pressure control valve includes valve seat and the valve gap being hollow cavity structure, is formed on valve seat
The main through hole communicating with its inner chamber, forms, on valve gap, the first through hole communicating with its inner chamber, installs valve ball in valve gap inner chamber
And sliding seat, described sliding seat forms the fluid passage of insertion sliding seat, sliding seat side wall is formed and leads to described fluid
The second through hole that road communicates；Between described valve seat and housing, between described valve gap and valve seat, form fixing seal structure respectively,
Between valve ball and valve gap, second level spring is installed, between sliding seat and valve seat, first order spring is installed, and valve ball and sliding seat
Between, formed respectively between sliding seat and valve gap and contact sealing structure.
Preferably, described constant-pressure control valve includes the valve gap of hollow cavity structure, is formed and its inner chamber phase on valve gap
Logical first through hole, main through hole, install valve ball and sliding seat in valve gap inner chamber, and described sliding seat forms insertion sliding seat
Fluid passage, forms the second through hole communicating with described fluid passage on the wall of sliding seat side；Shape between described valve gap and housing
Become fixing seal structure, between valve ball and valve gap, second level spring is installed, first order bullet is installed between sliding seat and housing
Between spring, and valve ball and sliding seat, formed respectively between sliding seat and valve gap and contact sealing structure.
Preferably, form the first positioning convex in described valve gap inner chamber, described first positioning convex and second level spring it
Between formed socket join structure.
Preferably, the outer surface of described first positioning convex is formed as convex spherical structure.
Preferably, described valve gap internal chamber wall is formed the first contact sealing, described sliding seat outer surface forms second
Contact sealing, described first contact sealing contacts with second and forms contact sealing structure in face between sealing.
Preferably, the first contact sealing on described valve gap internal chamber wall is cone structure, on described sliding seat outer surface
Second contact sealing be cone structure or spherical structure.
Preferably, the 3rd contact sealing is formed on described sliding seat top, between described 3rd contact sealing and valve ball
Formation face contacts sealing structure.
Preferably, the 3rd contact sealing at described sliding seat top is cone structure or concave spherical surface structure.
Preferably, the rigidity of described second level spring is less than the rigidity of first order spring.
Compared with prior art, the invention has the beneficial effects as follows：It is applied in engine timing drive system in the present invention
Afterwards, when engine operating condition is mutated, the oil pressure of stretcher high pressure intracavity increases suddenly, and the pressure making stretcher high pressure intracavity is higher than
Setting value, due to defining a pressure release passage between stretcher high pressure chest, first through hole, main through hole, is led to by this pressure release
Road, can make the section hydraulic oil being in stretcher high pressure intracavity be released stretcher high pressure chest in time, so that stretcher
The pressure of high pressure intracavity is discharged in time, until returning to setting value it is ensured that the pressure of stretcher high pressure intracavity is in perseverance
Pressure condition, therefore, effectively prevent stretcher high pressure chest and because oil pressure is excessive, timing system is produced with excessive impact load
The timing chain that lotus is led to, the abrasion of guide rail aggravate, and advantageously reduce the frictional force during transmission of engine timing drive system,
Increase the output of electromotor, improve the working life of engine timing drive system, and make the fuel economy of electromotor
Correspondingly improved.
Brief description
Fig. 1 is a kind of D structure figure of the timing chain tensioner with constant-pressure control valve of the present invention.
Fig. 2 is the sectional view of the timing chain tensioner with constant-pressure control valve shown in Fig. 1.
Fig. 3 is the D structure figure of the constant-pressure control valve in Fig. 2.
Fig. 4 is the Structure explosion diagram of the constant-pressure control valve in Fig. 2.
Fig. 5 is the sectional view of the constant-pressure control valve in Fig. 2.
Fig. 6 is the sectional view of the valve gap in the constant-pressure control valve shown in Fig. 5.
Fig. 7 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in constant voltage working condition, embodiment party
Formula 1).
Fig. 8 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in pressure release working condition, embodiment party
Formula 1).
Fig. 9 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in supercharging working condition, embodiment party
Formula 1).
Figure 10 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in constant voltage working condition, implements
Mode 2).
Figure 11 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in pressure release working condition, implements
Mode 2).
Figure 12 is that the fundamental diagram of the timing chain tensioner with constant-pressure control valve (is in supercharging working condition, implements
Mode 2).
In figure labelling：1- housing, 2- plunger, 3- latch, 4- back-moving spring, 5- stretcher high pressure chest, 6- constant-pressure control valve,
7- stretcher fuel feed hole, 61- valve ball, 62- valve seat, 63- valve gap, 64- first order spring, 65- sliding seat, 66- second level spring,
The main through hole of 621-, 631- first through hole, 632- first positioning convex, 633- first contact sealing, 634- flanging sealing,
651- second contacts sealing, and 652- the 3rd contacts sealing, 653- second through hole, 654- second positioning convex.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings and be embodied as
The present invention is described in detail for example.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not
For limiting the present invention.
Embodiment 1
The timing chain tensioner with constant-pressure control valve as shown in Figure 1 and Figure 2, main inclusion housing 1, plunger 2, reset
Spring 4 and constant-pressure control valve 6, described plunger 2 coordinates and forms oil pressure damping clearance with housing 1 inner chamber, generally, described plunger
The 2 cylindrical gaps that 0.02mm-0.06mm is set and housing 1 inner chamber between；Form stretcher high between described plunger 2 and housing 1
Pressure chamber 5, fixedly mounts constant-pressure control valve 6 in housing 1 intracavity bottom, and described back-moving spring 4 is arranged on constant-pressure control valve 6 and plunger
Between 2.Wherein, as shown in Fig. 3, Fig. 4, Fig. 5, main inclusion is hollow cavity knot to the concrete structure of described constant-pressure control valve 6
The valve seat 62 of structure and valve gap 63, form the main through hole 621 communicating with its inner chamber, described main through hole 621 and housing 1 on valve seat 62
On stretcher fuel feed hole 7 communicate, the first through hole 631 that communicated with its inner chamber, described first through hole 631 are formed on valve gap 63
Communicate with stretcher high pressure chest 5；Preferably, described first through hole 631 can arrange several, this several first through hole
631 preferably ring valve lids 63 are uniformly distributed.Valve ball 61 and sliding seat 65, shape in described sliding seat 65 are installed in valve gap 63 inner chamber
Become the fluid passage of insertion sliding seat 65, the second through hole 653 being communicated with described fluid passage is formed on sliding seat 65 side wall；
Preferably, described second through hole 653 can arrange several, and it is uniform that this several second through hole 653 is preferably ring sliding seat 65
Distribution.
Between described valve seat 62 and housing 1, formed by interference fit respectively between described valve gap 63 and valve seat 62
Fixing seal structure；Preferably, as shown in fig. 6, the flanging sealing of integral structure is formed by flanging in valve gap 63 bottom
634, again fixing seal structure is formed by interference fit between described flanging sealing 634 and valve seat 62.In valve ball 61
And valve gap 63 between, second level spring 66 is installed, first order spring 64 is installed between sliding seat 65 and valve seat 62.Described valve
Between ball 61 and sliding seat 65, formed respectively between sliding seat 65 and valve gap 63 and contact sealing structure, that is, when valve ball 61 and work
When contacting with each other between dynamic seat 65, valve ball 61 covers the fluid passage in sliding seat 65, now, valve ball 61 and sliding seat 65 it
Between the position that contacts with each other form sealing state, and when valve ball 61 is separated from each other with sliding seat 65, valve ball 61 and sliding seat 65
Between sealing state release.Similarly, when contacting with each other between sliding seat 65 and valve gap 63, in valve gap 63 and sliding seat 65
Between the position that contacts with each other form sealing state, and when valve gap 63 is separated from each other with sliding seat 65, valve gap 63 and sliding seat
Sealing state between 65 releases.
The above-mentioned timing chain tensioner with constant-pressure control valve is applied in engine timing chain drive system, leads to
Often, before stretcher is installed, to limit plunger 2 and to eject using latch 3 and housing 1 cooperation, as shown in Fig. 2 in stretcher peace
After being attached to position, pull out latch 3, plunger 2 ejects with respect to housing 1 under the resilient force of back-moving spring 4, and hold out against and start
Guide rail in machine correct time chain driving system and reach working condition.In engine timing chain drive system work process,
Engine motor oil from stretcher fuel feed hole 7 enter stretcher, effect of vibration produced by drive system on plunger 2, described post
The motion of plug 2 is to move back and forth.
During engine work, between described valve ball 61 and sliding seat 65, between sliding seat 65 and valve gap 63
Form contact sealing state respectively, now, engine motor oil will not enter stretcher high pressure chest 5 from stretcher fuel feed hole 7, such as schemes
Shown in 7.But, when engine operating condition mutation, when plunger 2 is with respect to housing 1 rearward movement, the volume of stretcher high pressure chest 5 becomes
Little, and produce malleation, so that the pressure in stretcher high pressure chest 5 is suddenly increased, when the pressure in stretcher high pressure chest 5 is higher than setting value
When, the hydraulic oil in stretcher high pressure chest 5 passes through first through hole 631 and promotes valve ball 61 to move down with respect to housing 1, then by
Valve ball 61 promotes sliding seat 65 and compresses first order spring 64, and sliding seat 65 moves down with respect to housing 1 and departs from valve gap 63,
Now, the sealing state between valve ball 61 and sliding seat 65 remains in that, and the sealing state between sliding seat 65 and valve gap 63
Then release, therefore, define a pressure release passage, tensioning between stretcher high pressure chest 5, first through hole 631, main through hole 621
Machine oil in device high pressure chest 5 is flowed through gap between first through hole 631, sliding seat 65 and valve gap 63, the second through hole successively
653 and enter the fluid passage in sliding seat 65, then released by main through hole 621, as shown in figure 8, so that stretcher high pressure
Oil pressure in chamber 5 declines, until returning to setting value, to ensure that the pressure in stretcher high pressure chest 5 is in pressure constant state.
When engine operating condition mutation, when plunger 2 travels forward with respect to housing 1, the volume of stretcher high pressure chest 5 becomes big,
Pressure drop, when the pressure in stretcher high pressure chest 5 is less than setting value, engine motor oil enters from stretcher fuel feed hole 7 to be opened
Tight device, and enter valve gap 63 by main through hole 621, promotes sliding seat 65 to move up with respect to housing 1, until sliding seat 65 with
Recover sealing state between valve gap 63, engine motor oil after backing down valve ball 61, valve ball 61 compression second level spring 66 and relatively
Move up in housing 1, so that the sealing state between valve ball 61 and sliding seat 65 is released, therefore, engine motor oil be able to through
Fluid passage in sliding seat 65 gap between valve ball 61 and sliding seat 65 is flowed into stretcher high pressure chest 5, such as Fig. 9
Shown, so that the oil pressure in stretcher high pressure chest 5 persistently raises, until returning to setting value, to ensure stretcher high pressure chest 5
Interior pressure is in pressure constant state.
Embodiment 2
Compared with embodiment 1, as shown in Figure 10, Figure 11, Figure 12, described constant-pressure control valve 6 eliminates valve seat 62,
Form the first through hole 631 communicating with its inner chamber, main through hole 621 on valve gap 63, install first between sliding seat 65 and housing 1
Level spring 64；Between described valve gap 63 and housing 1, fixing seal structure is formed by interference fit；Preferably, as Fig. 6 institute
Show, described valve gap 63 bottom forms the flanging sealing 634 of integral structure by flanging operation, described flanging sealing
634 form fixing seal structure by interference fit again and housing 1 between.Remaining is with embodiment 1.Due to eliminating valve
Seat 62, therefore, the structure of the constant-pressure control valve 6 of present embodiment is simpler, and its implementation cost is also lower.
In constant-pressure control valve 6 work process, in order to strengthen the kinetic stability of valve ball 61, and make second level spring 66,
The force value change of first order spring 64 is more steady, the first positioning convex 632 can be formed in valve gap 63 inner chamber it is preferable that
The outer surface of the first described positioning convex 632 is formed as convex spherical structure, as shown in fig. 6, described first positioning convex 632 with
Form socket join structure, such that it is able to carry out to second level spring 66 efficiently locating, spacing between second level spring 66.In addition,
The second positioning convex 654 can be formed in sliding seat 65 bottom it is preferable that described second positioning convex 654 adopts hollow circuit cylinder
Body structure, forms socket join structure between described second positioning convex 654 and first order spring 64, as shown in Figure 4, Figure 5, with more preferable
Ground carries out to first order spring 64 efficiently locating, spacing.
In order to strengthen the sealing property of constant-pressure control valve 6, improve the control accuracy of constant-pressure control valve 6, can be in valve gap 63
First contact sealing 633 is formed on internal chamber wall, as shown in fig. 6, the second contact sealing is formed on sliding seat 65 outer surface
651, and the first contact sealing 633 contacts contact sealing structure in formation face between sealing 651 with second, as shown in Figure 5.Excellent
Selection of land, described first contact sealing 633 is designed as cone structure, and described second contact sealing 651 is designed as cone structure
Or spherical structure.Similarly, the 3rd contact sealing 652, described 3rd contact sealing 652 are formed at sliding seat 65 top
Form face and contact sealing structure between valve ball 61.Preferably, described 3rd contact sealing 652 be designed as cone structure or
Concave spherical surface structure.In order to further improve the control accuracy of constant-pressure control valve 6, opening between described valve ball 61 and sliding seat 65
Open gap and it is preferably provided as 0.2mm-0.6mm, the rigidity of described second level spring 66 is preferably less than first order spring 64
Rigidity；In addition, using after such structure design, this timing chain tensioner with constant-pressure control valve can also be prevented well
Shift to an earlier date pressure release in the course of the work, so that it is guaranteed that the pressure in stretcher high pressure chest 5 is in pressure constant state.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention it is noted that all
Any modification, equivalent and improvement of being made within the spirit and principles in the present invention etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. a kind of timing chain tensioner with constant-pressure control valve, including housing (1), plunger (2) and back-moving spring (4), described
Plunger (2) and housing (1) inner chamber coordinate and form oil pressure damping clearance, form stretcher high between plunger (2) and housing (1)
Pressure chamber (5) it is characterised in that：Also include constant-pressure control valve (6), described constant-pressure control valve (6) forms main through hole (621) respectively
With first through hole (631), described first through hole (631) communicated with stretcher high pressure chest (5), and described constant-pressure control valve (6) is fixing
It is arranged in stretcher high pressure chest (5), described back-moving spring (4) is arranged between constant-pressure control valve (6) and plunger (2)；When
When pressure in tight device high pressure chest (5) is higher than setting value, described stretcher high pressure chest (5), first through hole (631), main through hole
(621) form pressure release passage between, and until the pressure in stretcher high pressure chest (5) returns to setting value.
2. the timing chain tensioner with constant-pressure control valve according to claim 1 it is characterised in that：Described constant voltage control
Valve (6) processed includes being valve seat (62) and the valve gap (63) of hollow cavity structure, communicates with its inner chamber in upper formation of valve seat (62)
Main through hole (621), above form the first through hole (631) communicating with its inner chamber in valve gap (63), in valve gap (63) inner chamber pacify
Dress valve ball (61) and sliding seat (65), the upper fluid passage forming insertion sliding seat (65) of described sliding seat (65), in sliding seat
(65) the second through hole (653) being communicated with described fluid passage is formed on the wall of side；Between described valve seat (62) and housing (1), institute
State and form fixing seal structure respectively between valve gap (63) and valve seat (62), install second between valve ball (61) and valve gap (63)
Level spring (66), installs first order spring (64) between sliding seat (65) and valve seat (62), and valve ball (61) and sliding seat
(65), between, formed respectively between sliding seat (65) and valve gap (63) and contact sealing structure.
3. the timing chain tensioner with constant-pressure control valve according to claim 1 it is characterised in that：Described constant voltage control
Valve (6) processed includes the valve gap (63) of hollow cavity structure, above forms, in valve gap (63), the first through hole communicating with its inner chamber
(631), main through hole (621), installs valve ball (61) and sliding seat (65) in valve gap (63) inner chamber, the upper shape of described sliding seat (65)
Become the fluid passage of insertion sliding seat (65), the second through hole being communicated with described fluid passage is formed on the wall of sliding seat (65) side
(653)；Form fixing seal structure between described valve gap (63) and housing (1), install between valve ball (61) and valve gap (63)
Second level spring (66), installs first order spring (64) between sliding seat (65) and housing (1), and valve ball (61) and sliding seat
(65), between, formed respectively between sliding seat (65) and valve gap (63) and contact sealing structure.
4. the timing chain tensioner with constant-pressure control valve according to claim 2 or 3 it is characterised in that：Described valve
Form the first positioning convex (632), shape between described first positioning convex (632) and second level spring (66) in lid (63) inner chamber
Become socket join structure.
5. the timing chain tensioner with constant-pressure control valve according to claim 4 it is characterised in that：Described first positioning
The outer surface of raised (632) is formed as convex spherical structure.
6. the timing chain tensioner with constant-pressure control valve according to claim 2 or 3 it is characterised in that：Described valve
First contact sealing (633) is formed on lid (63) internal chamber wall, described sliding seat (65) outer surface forms the second contact sealing
Portion (651), described first contact sealing (633) contacts with second and forms contact sealing structure in face between sealing (651).
7. the timing chain tensioner with constant-pressure control valve according to claim 6 it is characterised in that：Described valve gap (63)
The first contact sealing (633) on internal chamber wall is cone structure, the second contact sealing on described sliding seat (65) outer surface
Portion (651) is cone structure or spherical structure.
8. the timing chain tensioner with constant-pressure control valve according to claim 2 or 3 it is characterised in that：Described work
3rd contact sealing (652) is formed on dynamic seat (65) top, is formed between described 3rd contact sealing (652) and valve ball (61)
Face contacts sealing structure.
9. the timing chain tensioner with constant-pressure control valve according to claim 8 it is characterised in that：Described sliding seat
(65) the 3rd contact sealing (652) at top is cone structure or concave spherical surface structure.
10. the timing chain tensioner with constant-pressure control valve according to claim 2 or 3 it is characterised in that：Described
The rigidity of two-level spring (66) is less than the rigidity of first order spring (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932474.9A CN106438884A (en) | 2016-10-31 | 2016-10-31 | Timing chain tensioner with constant pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610932474.9A CN106438884A (en) | 2016-10-31 | 2016-10-31 | Timing chain tensioner with constant pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438884A true CN106438884A (en) | 2017-02-22 |
Family
ID=58177532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610932474.9A Pending CN106438884A (en) | 2016-10-31 | 2016-10-31 | Timing chain tensioner with constant pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869671A (en) * | 2018-09-28 | 2018-11-23 | 奇瑞汽车股份有限公司 | Hydraulic tensioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632383A1 (en) * | 1995-08-18 | 1997-02-20 | Borg Warner Automotive | Combined hydraulic inlet and pressure relief valve |
| US5707309A (en) * | 1997-01-23 | 1998-01-13 | Borg-Warner Automotive, Inc. | Hydraulic tensioner with modular inlet check valve with pressure relief |
| US20090197722A1 (en) * | 2008-01-31 | 2009-08-06 | Honda Motor Co., Ltd. | Tensioner for endless transmission belt and internal combustion engine having the tensioner |
| CN204284328U (en) * | 2014-10-28 | 2015-04-22 | 绵阳富临精工机械股份有限公司 | A kind of limited pressure stretcher |
| CN106051082A (en) * | 2016-08-17 | 2016-10-26 | 绵阳富临精工机械股份有限公司 | Double-plunger tensioner |
| CN206130011U (en) * | 2016-10-31 | 2017-04-26 | 绵阳富临精工机械股份有限公司 | Take timing chain tensioning ware of constant voltage control valve |
-
2016
- 2016-10-31 CN CN201610932474.9A patent/CN106438884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19632383A1 (en) * | 1995-08-18 | 1997-02-20 | Borg Warner Automotive | Combined hydraulic inlet and pressure relief valve |
| US5707309A (en) * | 1997-01-23 | 1998-01-13 | Borg-Warner Automotive, Inc. | Hydraulic tensioner with modular inlet check valve with pressure relief |
| US20090197722A1 (en) * | 2008-01-31 | 2009-08-06 | Honda Motor Co., Ltd. | Tensioner for endless transmission belt and internal combustion engine having the tensioner |
| CN204284328U (en) * | 2014-10-28 | 2015-04-22 | 绵阳富临精工机械股份有限公司 | A kind of limited pressure stretcher |
| CN106051082A (en) * | 2016-08-17 | 2016-10-26 | 绵阳富临精工机械股份有限公司 | Double-plunger tensioner |
| CN206130011U (en) * | 2016-10-31 | 2017-04-26 | 绵阳富临精工机械股份有限公司 | Take timing chain tensioning ware of constant voltage control valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869671A (en) * | 2018-09-28 | 2018-11-23 | 奇瑞汽车股份有限公司 | Hydraulic tensioner |
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Application publication date: 20170222 |
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