CN203783741U - Integrated engine body - Google Patents
Integrated engine body Download PDFInfo
- Publication number
- CN203783741U CN203783741U CN201420180752.6U CN201420180752U CN203783741U CN 203783741 U CN203783741 U CN 203783741U CN 201420180752 U CN201420180752 U CN 201420180752U CN 203783741 U CN203783741 U CN 203783741U
- Authority
- CN
- China
- Prior art keywords
- crankcase
- hole
- cylinder head
- air cylinder
- crankcase portion
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000010304 firing Methods 0.000 claims description 15
- 238000004512 die casting Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an integrated engine body which comprises a main integrated engine body provided with an air cylinder head, an air cylinder part and a crankcase part, wherein the air cylinder head, the air cylinder part and the crankcase part are integrally formed in a pressure casting mode. An air cylinder hole of the air cylinder part extends to a combustion chamber of the air cylinder head from the side wall of an inner cavity of the crankcase part. An air inlet channel and an air outlet channel of the air cylinder head are respectively communicated with the combustion chamber. The extending line of an axial lead of the air cylinder hole and the side wall of the other side of the inner cavity of the crankcase part intersect. The intersection portion of the side wall is provided with a receding hole used for assembling a piston connecting rod assembly. The receding hole is located on the extending line of the axial head of the air cylinder hole and is larger than the air cylinder hole. A sealing cover is installed on the receding hole. A crankcase cover is installed on the case closing face of the crankcase part. Symmetric crank holes are formed in the side walls of the crankcase cover and the crankcase part. An air cylinder head cover is installed on the air cylinder head. The integrated engine body is low in cost, the volume of the combustion chamber is easy to control, uniformity is good, the hidden danger of air leakage is eradicated, engine performance is stable, assembling processes are reduced, and assembling efficiency is improved.
Description
Technical field
The utility model relates to engine art, particularly a kind of motor integral type body.
Background technique
Available engine body is mostly assembled by cylinder head, cylinder block, crankcase body.Also have some engine bodies be cylinder block, crankcase body is one-body molded after, then with cylinder head by locating stud, sealing gasket, assembling bolt assembling.The structural feature of above-mentioned engine body: 1. piston rod part when assembling need pack at the cylinder-bore top from crankcase body combination, and piston rod combination can be taken out after also must first cylinder head combination being taken down while taking out.2. cylinder head combination is assemblied in by locating stud, cylinder head sealing gasket, cylinder head bolt after valve, rocking arm in crankcase body combination packing into.3. firing chamber is made up of the thickness of piston head, piston and a ring and cylinder side clearance, cylinder head bottom and cylinder head sealing gasket.Because making motor, the said structure of motor all there is following problem: while 1. assembling due to piston rod part, need pack at the cylinder-bore top from crankcase body, and piston rod combination can be taken out after also must first cylinder head being taken down while taking out, make connecting rod dismounting need use special tool.And it is higher to change piston degree of difficulty, is unfavorable for later period maintenance.2. cylinder head is arranged on cylinder block by cylinder assembling bolt, need to arrange the sealing of cylinder sealing gasket, and cylinder packing is graphite pads mostly, can not reuse, and increases the clean degree of difficulty of maintenance cost and junction plane between cylinder head and cylinder block.And torsion and the requirement of strength of cylinder assembling bolt are higher, need to select high-strength bolt, complete machine cost is high.3. the position dimension of cylinder head, cylinder block, crankcase body junction plane is had relatively high expectations, and increases processing cost.4. the thickness of cylinder packing needs strict control.5. the integrating error that produce due to factors such as the thickness of manufacture, assembling and the cylinder packing of cylinder head, cylinder block, crankcase body, make combustion chamber volume wayward, have gas leakage hidden danger, affect engine performance.6. cylinder head, cylinder block, crankcase body are to process respectively, need how secondary mould.
Summary of the invention
The purpose of this utility model is the deficiency existing for prior art, and a kind of motor integral type body is provided, and this integral type body cost is lower, combustion chamber volume is easy to control, and high conformity is stopped the hidden danger of leaking gas, engine performance is stable, and has reduced assembly process, has improved efficiency of assembling.
The purpose of this utility model is achieved in that a kind of motor integral type body, comprise and have a cylinder head through die casting is one-body molded, the motor integral type body of cylinder part and crankcase portion, the casing bore of described cylinder part extends to the firing chamber of cylinder head from the intracavity sidewall of crankcase portion, the intake duct of cylinder head, air outlet flue communicates with firing chamber respectively, the elongation line of described casing bore shaft axis is crossing with the inner chamber the opposing party's of crankcase portion sidewall, the sidewall of this intersection is provided with the resigning hole for assembling piston rod part, described resigning hole is positioned on the elongation line of casing bore shaft axis, this resigning hole is greater than casing bore, on described resigning hole, sealing cover is installed, the mould assembling face of crankcase portion is installed crankcase cover, the sidewall of described crankcase cover and crankcase portion is provided with symmetrical crankshaft hole, the shaft axis of two crankshaft holes is located along the same line, this straight line is vertical with casing bore shaft axis, described cylinder head is installed cylinder-head cover.
Symmetrical camshaft mounting hole is set on the crankcase portion of described integral type body and crankcase cover, the shaft axis of two camshaft mounting holes is located along the same line, the shaft axis place straight line parallel of the shaft axis place straight line of camshaft mounting hole and crankshaft hole, the intracavity sidewall that described crankcase portion is positioned at casing bore below arranges two tappet seat holes, two tappet seat holes are parallel, described tappet seat hole extends to from the intracavity sidewall of crankcase portion the push-rod hole that cylinder part is provided with, the push-rod hole of described cylinder part extends to the rocking arm installation cavity of cylinder head from the intracavity sidewall of crankcase portion, form oil leab.
The mould assembling face of described crankcase portion is provided with the mounting hole for crankcase cover is installed.
Described crankcase portion is provided with the mounting hole for sealing cover is installed at the sidewall that is provided with resigning hole, and the edge of described resigning hole is provided with seal ring mounting groove.
Described resigning hole is D font.
The shaft axis of described casing bore is positioned at one end of cylinder head higher than the one end that is positioned at crankcase portion, and the angle between shaft axis and the horizontal plane of casing bore is acute angle.
Adopt such scheme, make the utlity model has following advantage: have cylinder head because this integral type body comprises through die casting is one-body molded, the motor integral type body of cylinder part and crankcase portion, the casing bore of described cylinder part extends to the firing chamber of cylinder head from the intracavity sidewall of crankcase portion, the intake duct of cylinder head, air outlet flue communicates with firing chamber respectively, eliminate original cylinder head, cylinder block, the manufacture of crankcase body, the integrating error that the factors such as the thickness of assembling and cylinder packing produce, make combustion chamber volume easy to control, high conformity, stop the hidden danger of leaking gas, engine performance is stable.And cancel cylinder head sealing gasket, locating stud and high-strength bolt, reduced motor cost, alleviated engine weight, reduced assembly process, improved efficiency of assembling.And crankcase portion, cylinder portion, cylinder head are integrated again, have cancelled junction plane, have improved technology capability, have reduced processing cost.Add man-hour, only need a secondary mould.
The elongation line of described casing bore shaft axis is crossing with the inner chamber the opposing party's of crankcase portion sidewall, the sidewall of this intersection is provided with the resigning hole for assembling piston rod part, described resigning hole is positioned on the elongation line of casing bore shaft axis, and this resigning hole is greater than casing bore.Piston rod part has special hole dismounting, without using special tool, reduces assembling degree of difficulty, has improved efficiency of assembling.And it is very convenient to change piston, is more conducive to later period maintenance.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is push-rod hole sectional view of the present utility model;
Fig. 3 is casing bore sectional view of the present utility model;
Fig. 4 is the schematic diagram of cylinder-head cover of the present utility model;
Fig. 5 is the schematic diagram of crankcase cover of the present utility model;
Fig. 6 is the schematic diagram of the motor after being assembled by the utility model;
Fig. 7 is the sectional view of the part-structure of Fig. 6.
In accompanying drawing, 1 is cylinder head, 1a is firing chamber, 1b intake duct, 1c air outlet flue, 1d is intake valve mounting hole, 1e is exhaust valve mounting hole, 2 is cylinder part, 21 is casing bore, 3 is crankcase portion, 31 is resigning hole, 32 is crankshaft hole, 33 is mould assembling face, 34 is camshaft mounting hole, 35 is tappet seat hole, 36 is oil leab, 37 is machine oil alarm mounting hole, 4 is sealing cover, 5 is crankcase cover, 51 is oil rule mounting hole, 6 is cylinder-head cover, 7 is piston, 8 is connecting rod, 9 is bent axle, 10 is camshaft, 11 is valve tappet, 12 is push rod, 13 is valve rocker, 14 is valve, 15 is silencer component, 16 is fuel tank, 17 is cylinder sleeve.
Embodiment
Embodiment 1
Referring to Fig. 1 and Fig. 5, a kind of motor integral type body, comprise and have a cylinder head 1 through die casting is one-body molded, the motor integral type body of cylinder part 2 and crankcase portion 3, the casing bore 21 of described cylinder part 2 extends to the firing chamber 1a of cylinder head 1 from the intracavity sidewall of crankcase portion 3, the intake duct 1b of cylinder head 1, air outlet flue communicates with firing chamber 1a respectively, the elongation line of described casing bore 21 shaft axiss is crossing with the 3 inner chamber the opposing party's of crankcase portion sidewall, the sidewall of this intersection is provided with the resigning hole 31 for assembling piston 7 connecting rod 8 assemblies, described resigning hole 31 is D font.Add man-hour, described resigning hole 31 is as the withdrawing pattern hole of D shaped mold.Described resigning hole 31 is positioned on the elongation line of casing bore 21 shaft axiss, and this resigning hole 31 is greater than casing bore 21, on described resigning hole 31, sealing cover 4 is installed.Described crankcase portion 3 is provided with the mounting hole for sealing cover 4 is installed at the sidewall that is provided with resigning hole 31.In the present embodiment, five plain bolts of sealing cover 4 use are arranged in crankcase portion 3, for stopping up resigning hole 31.Between sealing cover 4 and crankcase portion 3, sealing gasket is set.The mould assembling face 33 of crankcase portion 3 is installed crankcase cover 5, and the mould assembling face 33 of described crankcase portion 3 is provided with the mounting hole for crankcase cover 5 is installed.Between crankcase cover 5 and crankcase portion 3, sealing gasket is set.Described crankcase cover 5 is located along the same line with the shaft axis that the sidewall of crankcase portion 3 is provided with 32, two crankshaft holes 32 of symmetrical crankshaft hole, and this straight line is vertical with casing bore 21 shaft axiss, and described cylinder head 1 is installed cylinder-head cover 6.Between cylinder-head cover 6 and cylinder head 1, sealing gasket is set.The shaft axis of described casing bore 21 is positioned at one end of cylinder head 1 higher than the one end that is positioned at crankcase portion 3, and the angle between shaft axis and the horizontal plane of casing bore 21 is acute angle.In the inner chamber of described crankcase portion 3, be provided with machine oil alarm mounting hole 37.Described crankcase cover 5 is provided with oil rule mounting hole 51.Described cylinder head 1 is provided with intake valve mounting hole 1d and exhaust valve mounting hole 1e.
On the crankcase portion 3 of the present embodiment and crankcase cover 5, symmetrical camshaft mounting hole 34 is set, the shaft axis of two camshaft mounting holes 34 is located along the same line, the shaft axis place straight line parallel of the shaft axis place straight line of camshaft mounting hole 34 and crankshaft hole 32, the intracavity sidewall that described crankcase portion 3 is positioned at casing bore 21 belows arranges two tappet seat holes 35, two tappet seat holes 35 are parallel, described tappet seat hole 35 extends to from the intracavity sidewall of crankcase portion 3 push-rod hole that cylinder part 2 is provided with, the push-rod hole of described cylinder part 2 extends to the rocking arm installation cavity of cylinder head 1 from the intracavity sidewall of crankcase portion 3, form oil leab 36.Described cylinder head 1 arranges the mounting structure of lower arranging cam axle type valve actuating mechanism.
Referring to Fig. 6 and Fig. 7, while adopting the integral type body assembled engines of the present embodiment, cylinder sleeve 17 is set in casing bore 21, the piston 7 of piston 7 connecting rod 8 assemblies is arranged in casing bore 21, piston 7 is fixedly connected with the little head end of connecting rod 8, the stub end of connecting rod 8 is fixedly connected with the bent axle 9 being arranged in the crankshaft hole 32 of crankcase portion 3, initiatively timing gear are installed on bent axle 9, in the camshaft mounting hole 34 of crankcase portion 3, camshaft 10 is installed, driven timing gear on camshaft engage with active timing gear, in the tappet seat hole 35 of crankcase portion 3, be provided with valve tappet 11, the bottom surface of valve tappet 11 contacts with the cam of camshaft, the bulb that is arranged in push rod 12 lower ends of push-rod hole is placed in the female ball sockets of valve tappet 11, the bulb of push rod 12 upper ends is inserted in valve rocker 13 semi-spherical grooves of installing in cylinder head 1, form point of application of force, valve rocker 13 is arranged on pitman arm shaft, form fulcrum, the force bearing point of valve rocker 13 is adjusted cap with the valve arranging on valve 14 and is contacted.Install after lower arranging cam axle type valve actuating mechanism, cover cylinder-head cover 6.In described crankcase portion 3, fuel tank 16 is installed.Parts 15 fix a silencer in cylinder head 1.
Embodiment 2
The utility model is not only confined to above-described embodiment, motor integral type body of the present utility model can be set to install the integral type body of lower arranging cam axle type valve actuating mechanism, can be set to again install the integral type body of putting cam axle type valve actuating mechanism.Motor integral type body of the present utility model also can comprise through the one-body molded motor integral type body that has cylinder head, cylinder part and crankcase portion of die casting, the casing bore of described cylinder part extends to the firing chamber of cylinder head from the intracavity sidewall of crankcase portion, intake duct, the air outlet flue of cylinder head communicate with firing chamber respectively, the elongation line of described casing bore shaft axis is crossing with the inner chamber the opposing party's of crankcase portion sidewall, the sidewall of this intersection is provided with the resigning hole for assembling piston rod part, and described resigning hole is D font.Add man-hour, described resigning hole is as the withdrawing pattern hole of D shaped mold.Described resigning hole is positioned on the elongation line of casing bore shaft axis, and this resigning hole is greater than casing bore, on described resigning hole, sealing cover is installed.Described crankcase portion is provided with the mounting hole for sealing cover is installed at the sidewall that is provided with resigning hole.In the present embodiment, sealing cover is arranged in crankcase portion with five plain bolts, for stopping up resigning hole.Between sealing cover and crankcase portion, sealing gasket is set.The mould assembling face of crankcase portion is installed crankcase cover, and the mould assembling face of described crankcase portion is provided with the mounting hole for crankcase cover is installed.Between crankcase cover and crankcase portion, sealing gasket is set.The sidewall of described crankcase cover and crankcase portion is provided with symmetrical crankshaft hole, and the shaft axis of two crankshaft holes is located along the same line, and this straight line is vertical with casing bore shaft axis, and described cylinder head is installed cylinder-head cover.Between cylinder-head cover and cylinder head, sealing gasket is set.The shaft axis of described casing bore is positioned at one end of cylinder head higher than the one end that is positioned at crankcase portion, and the angle between shaft axis and the horizontal plane of casing bore is acute angle.The intracavity sidewall that described crankcase portion is positioned at casing bore below arranges the passage passing for chain, and this passage extends to the camshaft installation cavity of cylinder head from the intracavity sidewall of crankcase portion, forms oil leab.Described cylinder head arranges the mounting structure of OHC formula distribution device, forms and installs the integral type body of putting cam axle type valve actuating mechanism.
While processing above-mentioned two kinds of embodiments' integral type body, make firing chamber and the cylinder-bore once-through of integral type body by cylinder-bore forming die, after firing chamber and cylinder hole forming, cylinder-bore forming die is transferred to through the resigning hole of crankcase portion, withdrawing pattern direction is parallel with mould assembling face.In Fig. 1, arrow is oriented to withdrawing pattern direction.And described cylinder-bore forming die is D font except cylinder bore portion.D shaped mold makes adjacent position mould structure simple, and without wedge angle, the life-span is long.While piston rod part being installed on above-mentioned two kinds of embodiments' integral type body, after microcephaly's assembling of piston and connecting rod, the connecting rod that is equipped with piston is extend in cylinder-bore from the resigning hole of crankcase portion, then by the major part of connecting rod and bent axle assembling.Now firing chamber is made up of jointly the bottom of piston head, piston and a ring and cylinder side clearance, cylinder head.Combustion chamber volume is easy to control, and high conformity is stopped the hidden danger of leaking gas, and engine performance is stable.Piston rod part has special hole dismounting, without using special tool, reduces assembling degree of difficulty, has improved efficiency of assembling.Use this integral type body, cancelled cylinder head sealing gasket, locating stud and high-strength bolt, reduced motor cost, alleviated engine weight, reduced assembly process, improved efficiency of assembling.And crankcase portion, cylinder portion, cylinder head are integrated, and have cancelled junction plane, have improved technology capability, have reduced processing cost.
Claims (6)
1. a motor integral type body, it is characterized in that: comprise and have a cylinder head through die casting is one-body molded, the motor integral type body of cylinder part and crankcase portion, the casing bore of described cylinder part extends to the firing chamber of cylinder head from the intracavity sidewall of crankcase portion, the intake duct of cylinder head, air outlet flue communicates with firing chamber respectively, the elongation line of described casing bore shaft axis is crossing with the inner chamber the opposing party's of crankcase portion sidewall, the sidewall of this intersection is provided with the resigning hole for assembling piston rod part, described resigning hole is positioned on the elongation line of casing bore shaft axis, this resigning hole is greater than casing bore, on described resigning hole, sealing cover is installed, the mould assembling face of crankcase portion is installed crankcase cover, the sidewall of described crankcase cover and crankcase portion is provided with symmetrical crankshaft hole, the shaft axis of two crankshaft holes is located along the same line, this straight line is vertical with casing bore shaft axis, described cylinder head is installed cylinder-head cover.
2. motor integral type body according to claim 1, it is characterized in that: symmetrical camshaft mounting hole is set on the crankcase portion of described integral type body and crankcase cover, the shaft axis of two camshaft mounting holes is located along the same line, the shaft axis place straight line parallel of the shaft axis place straight line of camshaft mounting hole and crankshaft hole, the intracavity sidewall that described crankcase portion is positioned at casing bore below arranges two tappet seat holes, two tappet seat holes are parallel, described tappet seat hole extends to from the intracavity sidewall of crankcase portion the push-rod hole that cylinder part is provided with, the push-rod hole of described cylinder part extends to the rocking arm installation cavity of cylinder head from the intracavity sidewall of crankcase portion, form oil leab.
3. motor integral type body according to claim 1 and 2, is characterized in that: the mould assembling face of described crankcase portion is provided with the mounting hole for crankcase cover is installed.
4. motor integral type body according to claim 1, is characterized in that: described crankcase portion is provided with the mounting hole for sealing cover is installed at the sidewall that is provided with resigning hole.
5. according to the motor integral type body described in claim 1 or 4, it is characterized in that: described resigning hole is D font.
6. motor integral type body according to claim 1, is characterized in that: the shaft axis of described casing bore is positioned at one end of cylinder head higher than the one end that is positioned at crankcase portion, and the angle between shaft axis and the horizontal plane of casing bore is acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180752.6U CN203783741U (en) | 2014-04-15 | 2014-04-15 | Integrated engine body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420180752.6U CN203783741U (en) | 2014-04-15 | 2014-04-15 | Integrated engine body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783741U true CN203783741U (en) | 2014-08-20 |
Family
ID=51319935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420180752.6U Expired - Lifetime CN203783741U (en) | 2014-04-15 | 2014-04-15 | Integrated engine body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925096A (en) * | 2014-04-15 | 2014-07-16 | 重庆润通动力制造有限公司 | Integrated engine body |
-
2014
- 2014-04-15 CN CN201420180752.6U patent/CN203783741U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925096A (en) * | 2014-04-15 | 2014-07-16 | 重庆润通动力制造有限公司 | Integrated engine body |
| CN103925096B (en) * | 2014-04-15 | 2016-06-29 | 重庆润通科技有限公司 | A kind of electromotor integral type body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151112 Address after: 402260 B District, industrial park, Jiangjin District, Chongqing Patentee after: CHONGQING RATO TECHNOLOGY Co.,Ltd. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: CHONGQING RATO POWER Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Integrated engine body Effective date of registration: 20160706 Granted publication date: 20140820 Pledgee: China Co. truction Bank Corp Jiangjin branch Pledgor: CHONGQING RATO TECHNOLOGY Co.,Ltd. Registration number: 2016500000011 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190723 Granted publication date: 20140820 Pledgee: Chongqing Jiangjin Branch of China Construction Bank Co.,Ltd. Pledgor: CHONGQING RATO TECHNOLOGY Co.,Ltd. Registration number: 2016500000011 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20190722 Registration number: 2016500000011 Pledgee after: Chongqing Jiangjin Branch of China Construction Bank Co.,Ltd. Pledgee before: China Co. truction Bank Corp Jiangjin branch |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200617 Address after: 402246 area 1, workshop 1, Chongqing Runtong Power Co., Ltd., Shuangfu New District, Shuangfu street, Jiangjin District, Chongqing Patentee after: YUCHAI RUNWEI ENGINE Co.,Ltd. Address before: 402260 B District, industrial park, Jiangjin District, Chongqing Patentee before: CHONGQING RATO TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |
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| CX01 | Expiry of patent term |