CN100441917C - Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile - Google Patents
Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile Download PDFInfo
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- CN100441917C CN100441917C CNB2006100983605A CN200610098360A CN100441917C CN 100441917 C CN100441917 C CN 100441917C CN B2006100983605 A CNB2006100983605 A CN B2006100983605A CN 200610098360 A CN200610098360 A CN 200610098360A CN 100441917 C CN100441917 C CN 100441917C
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- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000007306 turnover Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 7
- 230000002950 deficient Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Abstract
A gearshift cylinder for the electrically controlled mechanical automatic speed variator of car features that its cylinder body has a closed end with a through hole for piston rod, the extended head of piston rod is linked with the gearshift finger in plug-in mode, and its hydraulic unit is sealed by piston, cylinder body, intermediate bushing, sealing ring and sealing pad.
Description
Technical field
The present invention relates to speed control system of car, more particularly, the present invention relates to a kind of electric control mechanical automatic gearbox gear selecting oil cylinder for automobile.
Background technique
At present, the control mode of automobile electric control mechanical type automatic speed variator all is to adopt motor or hydraulic control.The Electric Machine Control poor reliability, its control mechanism is changed very big to mechanical transmission, need will select shift shaft, select element such as gear shift part to be integrated on the shift control mechanism.The hydraulic control complex structure, control unit is many.The gear changing mode that hydraulic control is adopted mostly is bolt connecting mode, and switching performance is poor, and intensity can't guarantee.The mechanical wear of bolt connecting mode is very serious simultaneously, very easily causes the inefficacy of entire mechanism.China Patent No. is that the patent specification of CN01140543.0 discloses the technology of a kind of gear box shift module with oil cylinder, progressive to some extent technically and innovation, but still fail to overcome fully above-mentioned defective.
Summary of the invention
Problem to be solved by this invention provides a kind of electric control mechanical automatic gearbox gear selecting oil cylinder for automobile, its objective is the reliability that improves automatic change-speed device gearing and simplifies the gear selecting control mechanism.。
To achieve these goals, the technological scheme taked of the present invention is:
This electric control mechanical automatic gearbox gear selecting oil cylinder for automobile that is provided, be connected with the gearshift mechanism of speed changer, described gearshift mechanism is established gear shift and is referred to the shift shaft of speed changer fastening, described gear selecting oil cylinder comprises the cylinder block of coaxial line, the piston rod at piston and two ends, on cylinder block, establish two turnover oilholes, described cylinder block is the sleeve shape of end sealing, the cylinder piston rod through-hole of diameter less than the cylinder block internal diameter established at one end center of sealing, described piston rod stretch out from this hole and with this hole be Spielpassung, the head of piston rod external part refers to be connected for plug-snap type with gear shift.The structure that described plug-snap type connects is: the end of described piston rod is stretched into described gear shift and is referred to an inner segment length, on this length, piston rod is provided with piston rod and connects groove on cylindrical, this slot length direction is a rectangle perpendicular to the axis and the section of piston rod, described gear shift refers to that the piston rod of portion within it connects establishes gear shift and refers to connect projection and refer to as a wholely with gear shift on the relevant position of groove, gear shift refers to connect projection and stretches into piston rod and connect in the groove.
It is two that are symmetrically distributed along the piston rod axis that described piston rod connects groove, and described gear shift refers to connect projection and also correspondingly is two.
Described gear shift refer at position that piston rod stretches into for corresponding perpendicular to piston rod axis, shape and piston rod end and with piston rod be the groove of the perforation of Spielpassung, on the transverse section of groove, described gear shift refers to connect the part that the projection shape constitutes this groove shape.
In the end of described cylinder block at opening, if cylinder cover, one end of described piston rod stretch out in the middle of the cylinder cover and with cylinder cover be Spielpassung, in cylinder block, between cylinder body closed end interior edge face and the cylinder cover, axle sleeve in the middle of being provided with, its endoporus and piston, cylindrical and cylinder block are Spielpassung.
At the closed end interior edge face of being close to cylinder block and be close to the interior edge face position of cylinder cover, respectively establish the oil cylinder interior edge face gasket seal of a ring, its outside diameter equals the aperture of cylinder block, its endoporus aperture equals the diameter of piston rod, endoporus by described cylinder block, piston, piston rod, two oil cylinder interior edge face diaphragm seals and middle axle sleeve constitute two oil pockets, described two turnover oilholes, are located at the position of two oil pockets near the interior edge face of oil cylinder interior edge face gasket seal respectively.
The axial length of axle sleeve in the middle of described equals the distance between the interior edge face of two oil cylinder interior edge face diaphragm seals, in the end of middle axle sleeve, is provided with the passage of endoporus and cylindrical.
The aperture of the cylinder piston rod through-hole of the interior edge face of described cylinder block closed end, if oil cylinder interior edge face sealed step, in the annular groove of this step and the formation of oil cylinder interior edge face gasket seal, if oil cylinder interior edge face seal ring, the aperture of the interior edge face of described cylinder cover, if cylinder cover interior edge face sealed step, in the annular groove of this step and the formation of oil cylinder interior edge face gasket seal, if cylinder cover interior edge face seal ring, axial neutral position at described piston, if annular groove in the middle of the piston is established piston intermediate seal circle between this annular groove and cylinder block endoporus.
Establish cylinder cover cylindrical seal groove on the cylindrical of described cylinder cover, between this groove and cylinder block endoporus, establish cylinder cover cylindrical seal ring, the position, exterior edge face of described cylinder cover is established the elasticity inner shield ring and is close to the exterior edge face of cylinder cover, the elasticity inner shield ring is located in the annular groove on the cylinder block endoporus, the internal diameter of elasticity inner shield ring is less than the aperture of cylinder block endoporus, the cylinder cover cylindrical is axially established a tapering the outer end, its outer end diameter is greater than the inner, in this position, cylinder cover and cylinder block are taper fit.
Described piston rod is when moving to the limit position of cylinder cover, and its end of stretching out cylinder cover is still within the aperture of cylinder block.
The present invention adopts technique scheme, and gear selecting mechanism and Hydraulic Power Transmission System adopt the plug-snap type Placement, has overcome the defective that is rigidly connected of bolt, has improved the sensitivity and the flexibility that connect, has reduced the mechanical resistance that connects; Hydraulic part adopts multi-layer sealed modes such as piston, cylinder body, interstage bushing, seal ring and gasket seal, good seal performance.Above-mentioned measure makes simple in structure, reliability of the present invention increase.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
The cross-sectional schematic that Fig. 1 dissects along axis for gear selecting oil cylinder structure involved in the present invention.
Be labeled as among the figure: 1, piston rod, 2, cylinder block, 3, the cylinder piston rod through-hole, 4, annular groove in the middle of the piston, 5, piston intermediate seal circle, 6, middle axle sleeve, 7, cylinder cover, 8, cylinder cover interior edge face sealed step, 9, cylinder cover cylindrical seal groove, 10, cylinder cover interior edge face seal ring, 11, cylinder cover cylindrical seal ring, 12, the elasticity inner shield ring, 13, middle axle sleeve outer groove, 14, oil cylinder interior edge face sealed step, 15, oil cylinder interior edge face gasket seal, 16, oil cylinder interior edge face seal ring, 17, the turnover oilhole, 18, the turnover oilhole, 19, middle axle sleeve seal ring, 20, piston rod connects groove, 21, gear shift refers to, 22, gear shift refers to connect projection, 23, piston.
Embodiment
The of the present invention structure expressed as Fig. 1, the present invention is a kind of electric control mechanical automatic gearbox gear selecting oil cylinder for automobile, be connected with the gearshift mechanism of speed changer, described gearshift mechanism is established gear shift and is referred to that 21 is fastening with the shift shaft of speed changer, described gear selecting oil cylinder comprises the piston rod 1 at cylinder block 2, piston 23 and the two ends of coaxial line, on cylinder block 2, establish two turnover oilholes 17,18, hydraulic oil enters turnover oilhole 17 and turnover oilhole 18 respectively by the control of solenoid valve, promotes piston 23 and does reciprocating linear motion.Gear selecting method during general known speed changer gear selecting is that piston adopts bolt to connect with being connected of shift shaft.As noted earlier, said method exists bigger defective.
The present invention is for solving problem and the defective that exists in the disclosed technology of order as described in the background art, and to accomplish that structure is simple as far as possible, the force-bearing situation of whole driving mechanism is wanted rationally, therefore, the present invention has taked following technological scheme: the sleeve shape that cylinder block 2 is made as end sealing, the cylinder piston rod through-hole 3 of diameter less than cylinder block 2 internal diameters established at one end center of sealing, described piston rod 1 stretch out from this hole and with this hole be Spielpassung, the head of piston rod 1 external part and gear shift refer to that 21 are connected for plug-snap type.
The present invention adopts following several specific embodiments according to the technological scheme of top described introduction:
First embodiment is: the structure that above-mentioned plug-snap type connects is: the end of described piston rod 1 is stretched into described gear shift and is referred to 21 inner segment length, on this length, piston rod 1 is provided with piston rod and connects groove 20 on cylindrical, this slot length direction is a rectangle perpendicular to the axis and the section of piston rod 1, described gear shift refer to 21 within it the piston rod of portion connect and to establish gear shift on the relevant position of groove 20 and refer to connect projection 22 and refer to that with gear shift 21 is as a whole, gear shift refers to connect projection 22 and stretches into piston rod and connect in the groove 20.This method has realized that piston rod 1 and gear shift refer to that 21 plug-snap type is connected, and its advantage is to have improved the sensitivity and the flexibility that connect.
Second embodiment of the present invention is: it is two that are symmetrically distributed along the piston rod axis that above-mentioned Placement expands to piston rod connection groove 20, and described gear shift refers to connect projection 22 and also correspondingly is two.Stressed even when this mode makes transmission, it is more reliable to work.
In fact the structure of above-mentioned Placement becomes this structure: gear shift refer to 21 at position that piston rod 1 stretches into for perpendicular to piston rod 1 axis, shape is corresponding with piston rod 1 end and with piston rod 1 be the groove of the perforation of Spielpassung, on the transverse section of groove, described gear shift refers to connect the part that projection 22 shapes constitute this groove shape.In when assembling, the end of piston rod 1 refers to that from gear shift 21 side packs into, and described gap can not be too little and cause tension, can not be loose excessively, and cause gear selecting not in place and malfunctioning.
The sealing configuration of one end of oil cylinder opening is: in the end of cylinder block 2 at opening, if cylinder cover 7, one end of described piston rod 1 stretches out from cylinder cover 7 centres and is Spielpassung with cylinder cover 7, in cylinder block 2, between cylinder body closed end interior edge face and the cylinder cover 7, axle sleeve 6 in the middle of being provided with, its endoporus and piston 23, cylindrical and cylinder block 2 are Spielpassung.The material of middle axle sleeve 6 is a high-abrasive material, and its effect is to play better seal action, and reduces the wearing and tearing of 2 of piston 23 and cylinder blocks.
Following measure is the assembling that guarantees sealing and make things convenient for oil cylinder: at the closed end interior edge face of being close to cylinder block 2 and be close to the interior edge face position of cylinder cover 7, respectively establish the oil cylinder interior edge face gasket seal 15 of a ring, its outside diameter equals the aperture of cylinder block 2, its endoporus aperture equals the diameter of piston rod 1, endoporus by described cylinder block 2, piston 23, piston rod 1, two oil cylinder interior edge face diaphragm seals 15 and middle axle sleeve 6 constitute two oil pockets, and described two turnover oilholes 17 and 18 are located at the position of two oil pockets near the interior edge face of oil cylinder interior edge face gasket seal 15 respectively.
The axial length of middle axle sleeve 6 equals the distance between the interior edge face of two oil cylinder interior edge face diaphragm seals 15, in the end of middle axle sleeve 6, is provided with the passage of endoporus and cylindrical.
At the axial middle part of middle axle sleeve 6 cylindricals, axle sleeve outer groove 13 in the middle of establishing, axle sleeve seal ring 19 in the middle of establishing in the axle sleeve outer groove 13 and with middle axle sleeve 6, forms sealing in the middle of embedding.
The aperture of the cylinder piston rod through-hole 3 of the interior edge face of cylinder block 2 closed ends, if oil cylinder interior edge face sealed step 14, in the annular groove of this step and 15 formation of oil cylinder interior edge face gasket seal, if oil cylinder interior edge face seal ring 16, the aperture of the interior edge face of described cylinder cover 7, if cylinder cover interior edge face sealed step 8, in the annular groove of this step and 15 formation of oil cylinder interior edge face gasket seal, if cylinder cover interior edge face seal ring 10, axial neutral position at described piston 23, if annular groove 4 in the middle of the piston is established piston intermediate seal circle 5 between this annular groove and cylinder block 2 endoporus.The advantage of above structure is easy to assembly.
Establish cylinder cover cylindrical seal groove 9 on the cylindrical of cylinder cover 7, between this groove and cylinder block 2 endoporus, establish cylinder cover cylindrical seal ring 11, the position, exterior edge face of described cylinder cover 7 is established elasticity inner shield ring 12 and is close to the exterior edge face of cylinder cover 7, elasticity inner shield ring 12 is located in the annular groove on cylinder block 2 endoporus, the internal diameter of elasticity inner shield ring 12 is less than the aperture of cylinder block 2 endoporus, cylinder cover 7 cylindricals are axially established a tapering the outer end, 12 displacements of restriction cylinder cover 7 outside cylinder block 2 apertures of elasticity inner shield ring.Its outer end diameter is greater than the inner, so that be stuck in the annular groove on cylinder block 2 endoporus, in this position, cylinder cover 7 be a taper fit with cylinder block 2, limits cylinder cover 7 mobile in cylinder block 2 simultaneously.
Piston rod 1 is when moving to the limit position of cylinder cover 7, and its end of stretching out cylinder cover 7 is still within the aperture of the opening end of cylinder block 2.Like this, guarantee that piston rod 1 when moving to the limit position of cylinder cover 7, can not come in contact with the structure of outside.
The present invention adopts technique scheme, and gear selecting mechanism and Hydraulic Power Transmission System adopt the plug-snap type Placement, has overcome the defective that is rigidly connected of bolt, has improved the sensitivity and the flexibility that connect, has reduced the mechanical resistance that connects; Hydraulic part adopts multi-layer sealed modes such as piston, cylinder body, interstage bushing, seal ring and gasket seal, good seal performance.Above-mentioned measure makes simple in structure, reliability of the present invention increase.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; or design of the present invention and technological scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (9)
1, a kind of electric control mechanical automatic gearbox gear selecting oil cylinder for automobile, be connected with the gearshift mechanism of speed changer, described gearshift mechanism is established gear shift and is referred to that (21) are fastening with the shift shaft of speed changer, described gear selecting oil cylinder comprises the cylinder block (2) of coaxial line, the piston rod (1) at piston (23) and two ends, on cylinder block (2), establish two turnover oilholes (17,18), it is characterized in that: described cylinder block (2) is the sleeve shape of end sealing, the cylinder piston rod through-hole (3) of diameter less than cylinder block (2) internal diameter established at one end center of sealing, described piston rod (1) stretch out from this hole and with this hole be Spielpassung, the head of piston rod (1) external part refers to that with gear shift (21) are connected for plug-snap type, the structure that described plug-snap type connects is: the end of described piston rod (1) is stretched into described gear shift and is referred to (21) inner segment length, on this length, piston rod (1) is provided with piston rod and connects groove (20) on cylindrical, this slot length direction is a rectangle perpendicular to the axis and the section of piston rod (1), described gear shift refer to (21) within it the piston rod of portion connect and to establish gear shift on the relevant position of groove (20) and refer to connect projection (22) and refer to that with gear shift (21) are as a whole, gear shift refers to connect projection (22) and stretches into piston rod and connect in the groove (20).
2, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 1, it is characterized in that: it is two that are symmetrically distributed along the piston rod axis that described piston rod connects groove (20), and described gear shift refers to connect projection (22) and also correspondingly is two.
3, according to claim 1 or 2 described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile, it is characterized in that: described gear shift refer to (21) at position that piston rod (1) stretches into for perpendicular to piston rod (1) axis, shape is corresponding with piston rod (1) end and with piston rod (1) be the groove of the perforation of Spielpassung, on the transverse section of groove, described gear shift refers to connect the part that projection (22) shape constitutes this groove shape.
4, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 3, it is characterized in that: in the end of described cylinder block (2) at opening, if cylinder cover (7), one end of described piston rod (1) stretches out from cylinder cover (7) centre and is Spielpassung with cylinder cover (7), in cylinder block (2), between cylinder body closed end interior edge face and the cylinder cover (7), axle sleeve (6) in the middle of being provided with, its endoporus and piston (23), cylindrical and cylinder block (2) are Spielpassung.
5, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 4, it is characterized in that: at the closed end interior edge face of being close to cylinder block (2) and be close to the interior edge face position of cylinder cover (7), respectively establish the oil cylinder interior edge face gasket seal (15) of a ring, its outside diameter equals the aperture of cylinder block (2), its endoporus aperture equals the diameter of piston rod (1), endoporus by described cylinder block (2), piston (23), piston rod (1), two oil cylinder interior edge face diaphragm seals (15) and middle axle sleeve (6) constitute two oil pockets, described two turnover oilholes (17,18) be located at the position of two oil pockets respectively near the interior edge face of oil cylinder interior edge face gasket seal (15).
6, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 5, it is characterized in that: the axial length of axle sleeve (6) in the middle of described, equal the distance between the interior edge face of two oil cylinder interior edge face diaphragm seals (15), end in middle axle sleeve (6) is provided with the passage of endoporus and cylindrical.
7, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 6, it is characterized in that: the aperture of the cylinder piston rod through-hole (3) of the interior edge face of described cylinder block (2) closed end, if oil cylinder interior edge face sealed step (14), in the annular groove of this step and oil cylinder interior edge face gasket seal (15) formation, if oil cylinder interior edge face seal ring (16), the aperture of the interior edge face of described cylinder cover (7), if cylinder cover interior edge face sealed step (8), in the annular groove of this step and oil cylinder interior edge face gasket seal (15) formation, if cylinder cover interior edge face seal ring (10), axial neutral position at described piston (23), if annular groove (4) in the middle of the piston is established piston intermediate seal circle (5) between this annular groove and cylinder block (2) endoporus.
8, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 7, it is characterized in that: establish cylinder cover cylindrical seal groove (9) on the cylindrical of described cylinder cover (7), between this groove and cylinder block (2) endoporus, establish cylinder cover cylindrical seal ring (11), the position, exterior edge face of described cylinder cover (7) is established elasticity inner shield ring (12) and is close to the exterior edge face of cylinder cover (7), elasticity inner shield ring (12) is located in the annular groove on cylinder block (2) endoporus, the internal diameter of elasticity inner shield ring (12) is less than the aperture of cylinder block (2) endoporus, cylinder cover (7) cylindrical is axially established a tapering the outer end, its outer end diameter is greater than the inner, in this position, cylinder cover (7) is a taper fit with cylinder block (2).
9, according to the described electric control mechanical automatic gearbox gear selecting oil cylinder for automobile of claim 8, it is characterized in that: described piston rod (1) is when moving to the limit position of cylinder cover (7), and its end of stretching out cylinder cover (7) is still within the aperture of cylinder block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100983605A CN100441917C (en) | 2006-12-09 | 2006-12-09 | Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100983605A CN100441917C (en) | 2006-12-09 | 2006-12-09 | Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile |
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| Publication Number | Publication Date |
|---|---|
| CN1987156A CN1987156A (en) | 2007-06-27 |
| CN100441917C true CN100441917C (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100983605A Active CN100441917C (en) | 2006-12-09 | 2006-12-09 | Electric control mechanical automatic gearbox gear selecting oil cylinder for automobile |
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| Country | Link |
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| CN (1) | CN100441917C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808936B (en) * | 2012-08-31 | 2016-03-30 | 东风汽车公司 | Mechanical automatic gearbox gear-selecting and shifting executing mechanism |
| CN112145679A (en) * | 2020-09-18 | 2020-12-29 | 西安法士特汽车传动有限公司 | AMT transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580457A (en) * | 1983-06-29 | 1986-04-08 | Isuzu Motors, Ltd. | Manual or hydraulic gearshifting apparatus |
| CN2094474U (en) * | 1990-09-01 | 1992-01-29 | 欧阳抗美 | Electronic controlled automatic gearbox for car |
| CN1061000A (en) * | 1990-11-01 | 1992-05-13 | 吉林工业大学 | Electronic control mechanical automatic speed changing method and device |
| CN1417052A (en) * | 2001-11-07 | 2003-05-14 | 欧阳抗美 | Executing cylinder for gear box shift module |
-
2006
- 2006-12-09 CN CNB2006100983605A patent/CN100441917C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580457A (en) * | 1983-06-29 | 1986-04-08 | Isuzu Motors, Ltd. | Manual or hydraulic gearshifting apparatus |
| CN2094474U (en) * | 1990-09-01 | 1992-01-29 | 欧阳抗美 | Electronic controlled automatic gearbox for car |
| CN1061000A (en) * | 1990-11-01 | 1992-05-13 | 吉林工业大学 | Electronic control mechanical automatic speed changing method and device |
| CN1417052A (en) * | 2001-11-07 | 2003-05-14 | 欧阳抗美 | Executing cylinder for gear box shift module |
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| Publication number | Publication date |
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| CN1987156A (en) | 2007-06-27 |
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Effective date of registration: 20160301 Address after: 241009 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee after: CHERY AUTOMOBILE CO., LTD. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 8 Changchun Road Patentee before: Saic Chery Automobile Co., Ltd. |
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Address after: Hunan Road Wuhu economic and Technological Development Zone 241000 Anhui Fengming No. 11 Patentee after: Wuhu WanLiYang transmission Co., Ltd. Address before: 241009 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee before: CHERY AUTOMOBILE CO., LTD. |