CN207829980U - The cooling system of V-type multi-cylinder diesel engine - Google Patents
The cooling system of V-type multi-cylinder diesel engine Download PDFInfo
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- CN207829980U CN207829980U CN201820214705.7U CN201820214705U CN207829980U CN 207829980 U CN207829980 U CN 207829980U CN 201820214705 U CN201820214705 U CN 201820214705U CN 207829980 U CN207829980 U CN 207829980U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a kind of cooling systems of V-type multi-cylinder diesel engine, the V-type multi-cylinder diesel engine includes V-cylinder block and multiple monomer cylinder head mounted on the cylinder oral area position of V-cylinder block, there is cold water intaking set in V-cylinder block and multiple monomer cylinder head, V-type multi-cylinder diesel engine further includes lubricating system, lubricating system includes oil cooler, cooling system includes high temperature water-flow circuit and low temperature water-flow circuit, low temperature water-flow circuit includes heel row radiator and low temperature water pump, low temperature water-flow circuit is used for cooling machine oil cooler, high temperature water-flow circuit includes front-seat radiator and high-temperature water pump, high temperature water-flow circuit is used for cooling down V-cylinder block and multiple monomer cylinder head.The cooling system is taken high temperature and low-temperature components to classify and is cooled down, and can reduce intake air temperature and oil temperature, while reducing heat-energy losses, engine is more fuel-efficient.
Description
Technical field
The utility model is related to engine cool field, more particularly to a kind of cooling system of V-type multi-cylinder diesel engine.
Background technology
Large-power High-Speed diesel engine is generally used for generator station, petrochemical industry, high speed light crafts and naval vessels etc..Substantially
For four-stroke machine, since Large-power High-Speed diesel engine requires have very high single-machine capacity, intense loading degree requires more general
Diesel engine is high, and for external advanced high-speed diesel engine, mean effective pressure is up to 3MPa, and highest detonation pressure is up to
20MPa.The characteristics of high power, large torque are required due to Large-power High-Speed diesel engine, to several important critical systems
It is required that it is relatively high, such as cylinder assembly system, dynamical system, diesel systems, cooling system, lubricating system etc..
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of cooling system of V-type multi-cylinder diesel engine, high temperature and low-temperature components point
Class cools down, and can reduce intake air temperature and oil temperature, while reducing heat-energy losses, engine is more fuel-efficient.
To achieve the above object, the utility model provides a kind of cooling system of V-type multi-cylinder diesel engine, the V-type multi-cylinder
Diesel engine includes V-cylinder block and multiple monomer cylinder head mounted on the cylinder oral area position of V-cylinder block, V-cylinder block and more
It further includes lubricating system to have cold water intaking set, V-type multi-cylinder diesel engine in a monomer cylinder head, and lubricating system includes machine oil cooling
Device, cooling system include high temperature water-flow circuit and low temperature water-flow circuit, low temperature water-flow circuit include heel row radiator and
Low temperature water pump, low temperature water-flow circuit are used for cooling machine oil cooler, and high temperature water-flow circuit includes front-seat radiator and high temperature
Water pump, high temperature water-flow circuit are used for cooling down V-cylinder block and multiple monomer cylinder head.
Preferably, V-type multi-cylinder diesel engine further includes gas handling system, gas handling system include left side air inlet pipe, right side air inlet pipe,
Left hand booster, right hand booster, left side charge air cooler and right side charge air cooler, left side charge air cooler and right side charge air cooler are separately mounted to
Both sides above V-cylinder block rear end, left hand booster and right hand booster correspond to cold in left side charge air cooler and right side
The top of device and the top for protruding V-cylinder block, are connected with left side air filter in left hand booster, on right hand booster
It is connected with right hand side air filter, after left side air inlet pipe and right side air inlet pipe are connected with left side charge air cooler and right side charge air cooler respectively
It is arranged in the both sides upper end position of V-cylinder block, low temperature water-flow circuit is simultaneously for cold in cooling left side charge air cooler and right side
Device.
Preferably, the position above lubricating oil pump in the front end of V-cylinder block, high-temperature water pump setting is arranged in low temperature water pump
In position of the front end of V-cylinder block above diesel oil distributor, low temperature water pump, high-temperature water pump, lubricating oil pump and diesel oil distribution
Device is centered around the surrounding of crank pulley, and crank pulley respectively drives low temperature water pump and high-temperature water pump, flow through V-cylinder block and
The coolant liquid of multiple monomer cylinder head enters front-seat radiator through outfall sewer, is connected between outfall sewer and front-seat radiator
Three thermostats in parallel, thermostat are arranged in the upper right side position of the front end of V-cylinder block, and thermostat passes through radiator tube
It is connected to front-seat radiator, radiator tube is arranged in the top of V-cylinder block.
Preferably, low temperature water-flow circuit includes low temperature water dispenser, before low temperature water dispenser is fixed on V-cylinder block
The position above crank pulley is held, the low-temperature cooling water in low temperature water pump distributes to machine oil cooling through low temperature water dispenser
Device and left side charge air cooler and right side charge air cooler.
Preferably, left side charge air cooler and right side charge air cooler are square casing, and the inside of square casing has air stream cavity
Body is equipped with cooling liquid flowing channel in the square casing around air circulation cavity, and the front side of square casing is equipped with additional shell, left side
Be equipped with middle casing between charge air cooler and right side charge air cooler, the both sides of middle casing respectively with left side charge air cooler and right side charge air cooler
The inner side end of additional shell link together, add in shell and middle casing be equipped with it is cold in left side charge air cooler and right side
The circulation canal of cooling liquid flowing channel connection inside device, the inlet and outlet of circulation canal are arranged in the front end of middle casing
On face, inlet and outlet are connected by water pipe and low temperature water dispenser.
Compared with prior art, the utility model has the advantages that：It is cooled separately using high-low-temperature, water at low temperature
Cooling machine oil cooler, high-temperature water cool down cylinder block and cylinder head, which, which belongs to, forces closed cycle water cooling system,
This high temperature and low-temperature components classification cooling, can reduce intake air temperature and oil temperature, while reducing heat-energy losses, engine is more
It is fuel-efficient.
Description of the drawings
Fig. 1 is the structural schematic diagram of V-type multi-cylinder diesel engine V-cylinder block according to the present utility model；
Fig. 2 is the structural representation that monomer cylinder head is arranged on V-type multi-cylinder diesel engine V-cylinder block according to the present utility model
Figure；
Fig. 3 is a kind of complete machine structure figure of V-type multi-cylinder diesel engine according to the present utility model；
Fig. 4 is the cooling principle figure of the cooling system of V-type multi-cylinder diesel engine according to the present utility model；
Fig. 5 be V-type multi-cylinder diesel engine according to the present utility model cooling system in charge air cooler structure chart.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
According to a kind of cooling system of V-type multi-cylinder diesel engine of specific embodiment of the present invention, mainly for meeting
The cooling required of Large-power High-Speed diesel engine and design.The V-type multi-cylinder diesel engine of the present embodiment has the spy that power is high, torque is big
Electronically controlled unit pump technology may be used in point, the V-type multi-cylinder diesel engine, and injection pressure is big, accurately can dynamically adjust distributive value, ensures
Diesel engine is atomized in the case of different load, and burning is abundant, and transient state speed governing is good, and load capability is strong, and oil consumption is low.Per cylinder
The design of one lid, Intensity of Cylinder Head are high.
The present embodiment is described in detail the cooling system of the present embodiment by taking a kind of 12 cylinder V-diesels as an example：
As shown in Figure 1 to Figure 3, according to a kind of V-type multi-cylinder diesel engine of specific embodiment of the present invention, including V-arrangement
Cylinder block 100, multiple monomer cylinder head 200, diesel fuel supply system, gas handling system and lubricating system, the wherein V-cylinder block
Two row cylinder-bores of multiple V-shaped arrangements are disposed on 100, the angle between two row cylinder-bores of the V-cylinder block 100 is 60
It spends, sleeve 101 corresponding with cylinder holes number, multiple monomer gas is cast with respectively on the V-cylinder block 100 on the outside of two row cylinder-bores
Cylinder cap 200 is corresponding mounted on the cylinder oral area position of V-cylinder block 100 respectively, and V-cylinder block and multiple monomer cylinder head are interior with cold
Water intaking set.Diesel fuel supply system includes multiple electronically controlled unit pumps 14, diesel fuel tanks and oil feed line, and multiple electronically controlled unit pumps 14 are distinguished
Corresponding to be mounted in sleeve 101, multiple electronically controlled unit pump 14 is respectively intended to control and sprays diesel oil, diesel fuel tanks and fuel feeding to every cylinder
Pipeline connection, oil feed line include left side oil pipe and right side oil pipe, and left side oil pipe and right side oil pipe pass through vertical high pressure respectively
Oil pipe and multiple electronically controlled unit pumps are correspondingly connected with.Lubricating system includes oil sump, pre- oil feed pump 7, lubricating oil pump 5, oil filter 2
With oil cooler 1, oil sump is located at the bottom of V-cylinder block 100, and pre- oil feed pump 7 is located at the front side of oil sump, lubricating oil pump 5
It is located at the front end lower left position of V-cylinder block 100, oil filter 2 and oil cooler 1 are each provided at V-cylinder block 100
The upper left side position of front end.
As shown in Figure 3 and Figure 4, the cooling system of the V-type multi-cylinder diesel engine of the present embodiment, including high temperature water-flow circuit and
Low temperature water-flow circuit, low temperature water-flow circuit include heel row radiator and low temperature water pump 4, and low temperature water-flow circuit is used for cooling down
Oil cooler 1, high temperature water-flow circuit include front-seat radiator and high-temperature water pump 9, and high temperature water-flow circuit is used for cooling down V-arrangement
Cylinder block 100 and multiple monomer cylinder head.
As shown in figure 3, the V-type multi-cylinder diesel engine of the present embodiment further includes gas handling system, to the air inlet at appearance in Fig. 3
Pipe, booster, charge air cooler, air cleaner and exhaust pipe carry out local mark.Gas handling system includes left side air inlet pipe, right side
Air inlet pipe 15, left hand booster, right hand booster 18, left side charge air cooler and right side charge air cooler 16, in left side charge air cooler and right side
Cooler 16 is separately mounted to the both sides above 100 rear end of V-cylinder block, specifically, left side charge air cooler and right side charge air cooler 16
Downside is equipped with holder 506, left side charge air cooler and right side charge air cooler 16 and is fixed on above 100 rear end of V-cylinder block by holder 506
Both sides, left hand booster and right hand booster 18 correspond to the top mounted on left side charge air cooler and right side charge air cooler 16 and convex
Go out the top of V-cylinder block 100, left side air filter is connected in left hand booster, the right side is connected on right hand booster 18
Cloth after side air cleaner 17, left side air inlet pipe and right side air inlet pipe 15 are connected with left side charge air cooler and right side charge air cooler 16 respectively
Set the both sides upper end position in V-cylinder block 100.In addition, left hand booster is equipped with whirlpool heel row tracheae 19, right hand booster 18
On also be provided with whirlpool heel row tracheae.In fact, the cooling system of the V-type multi-cylinder diesel engine further includes corresponding exhaust system, exhaust
System includes exhaust pipe 21 (left and right two), and exhaust pipe 21 (left and right two) is corresponding to be connected with left hand booster and right hand booster
It connects, exhaust pipe 21 (left and right two) is arranged in the top center position of V-cylinder block 100.The cooling system of the present embodiment it is low
Warm water circulation circuit is simultaneously for cooling left side charge air cooler and right side charge air cooler.
As a kind of preferred embodiment, as shown in figure 3, low temperature water pump 4 is arranged in the front end of V-cylinder block 100 close to machine
The position of 5 top of oil pump, high-temperature water pump 9 are arranged in the front end of V-cylinder block 100, and high-temperature water pump 9 and low temperature water pump 4 are located respectively
In the top both sides of crank pulley, low temperature water pump 4, high-temperature water pump 9, lubricating oil pump 5 and oil transfer pump 8 are centered around crank pulley
(silica gel shock-absorption device 6 is arranged) in surrounding on crank pulley, crank pulley respectively drives low temperature water pump 4 and high-temperature water pump 9, flows through
The coolant liquid of V-cylinder block 100 and multiple monomer cylinder head 200 enters front-seat radiator 242 through outfall sewer, outfall sewer and
There are three thermostats 23 in parallel, thermostat 23 to be arranged in the front end of V-cylinder block 100 for connection between front-seat radiator 242
Upper right side position, thermostat 23 are connected to by radiator tube 20 with front-seat radiator 242, and radiator tube 20 is arranged in V-arrangement
The top of cylinder block 100.
As shown in figure 3, as a kind of preferred embodiment, low temperature water-flow circuit includes low temperature water dispenser 3, low temperature moisture
Orchestration 3 is fixed on position of the front end of V-cylinder block 100 above crank pulley, the purpose of setting low temperature water dispenser 3
Be exactly, low temperature water-flow circuit can simultaneously cooling machine oil cooler 1 and two charge air coolers.So far, as shown in figure 4, this implementation
What example proposed is cooled separately using high-low-temperature, and two charge air coolers of low temperature water cooling and oil cooler 1, high-temperature water cool down cylinder
Body and cylinder head, which, which belongs to, forces closed cycle water cooling system, coolant liquid that should use antifreeze, rust coolant liquid.
It is cooled separately using high and low temperature water, low temperature water cooling two charge air coolers, oil cooler, high-temperature water cools down cylinder block and cylinder
Lid, for the control of high-temperature water leaving water temperature at 75~95 DEG C, oil temperature control is convenient at 80~110 DEG C.In the system, water pump and
Fan, radiator, oil cooler are the critical pieces of cooling system.When engine is run, a left side is passed through by crankshaft timing gear
Right idle gear respectively drives high/low temperature water pump, and water pump vane rotation, coolant liquid is driven to be generated in the case where water pump centrifuges force effect certain
Pressure, from pump outlet flow out.The coolant liquid that high-temperature water pump extrudes enters the cooling jacket of cylinder block, cylinder head, cooling
Liquid, to outfall sewer, flows into radiator after cooling cylinder block, cylinder head after thermostat.Thermostat is mounted in water outlet tube end,
Thermostat A.T.C function, when coolant temperature is more than 75 DEG C, thermostat is opened, when coolant temperature is more than 85 DEG C
When, thermostat standard-sized sheet, coolant liquid fully enters radiator at this time, then flows back into water pump.If coolant temperature is less than 75 DEG C, it is not necessarily to
It is flowed directly to water pump through radiator heat-dissipation cooling and walks cooling cycle again.Low temperature water pump then cools down two charge air coolers and machine oil is cold
But device is then return to radiator and radiates.This high temperature and low-temperature components classification cooling, can reduce intake air temperature and machine oil temperature
Degree, while heat-energy losses are reduced, engine is more fuel-efficient.
As shown in figure 5, as a kind of preferred embodiment, the present embodiment proposes a kind of specific intercooler structure, in left side
Cooler and right side charge air cooler are square casing 501, and the inside of square casing 501 has air circulation cavity, air circulation cavity
Around square casing in be equipped with cooling liquid flowing channel, the front side of square casing 501 is equipped with additional shell 502, left side charge air cooler and
Be equipped with middle casing 503 between the charge air cooler of right side, the both sides of middle casing 503 respectively with left side charge air cooler and right side charge air cooler
The inner side end of additional shell 502 links together, add in shell 502 and middle casing 503 be equipped with left side charge air cooler and
Water inlet 504 and water outlet 505 setting of the circulation canal of cooling liquid flowing channel connection inside the charge air cooler of right side, circulation canal exist
On the front end face of middle casing 503, water inlet 504 and water outlet 505 are connected by water pipe and low temperature water dispenser, and then are realized
In low temperature water pump 4 low-temperature cooling water through low temperature water dispenser 3 distribute to oil cooler 1 and left side charge air cooler with it is cold in right side
Device 16.In addition, air inlet flange 507 has been extended upward on the madial wall of square casing 501, the outside of square casing 501
Air outlet flange 508 is extended anteriorly out on wall, left hand booster and right hand booster 18, which correspond to, is mounted on left side charge air cooler
With the top of right side charge air cooler 16, air inlet flange 507 is convenient to be connect with the air inlet of booster, left side air inlet pipe and right side
Air inlet pipe 15 is arranged in after being connected respectively with the air outlet flange 508 on the lateral wall of left side charge air cooler and right side charge air cooler 16
The both sides of V-cylinder block 100.
To sum up, the cooling system of the V-type multi-cylinder diesel engine of the present embodiment, is cooled separately using high-low-temperature, such high temperature
Classify with low-temperature components and cool down, intake air temperature and oil temperature can be reduced, while reducing heat-energy losses, engine is more fuel-efficient, full
Sufficient Large-power High-Speed diesel engine high power, the cooling of large torque require.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of cooling system of V-type multi-cylinder diesel engine, which includes V-cylinder block and is mounted on the V-arrangement
There is cold take in multiple monomer cylinder head of the cylinder oral area position of cylinder block, the V-cylinder block and the multiple monomer cylinder head
Water jacket, the V-type multi-cylinder diesel engine further includes lubricating system, and the lubricating system includes oil cooler, which is characterized in that institute
It includes high temperature water-flow circuit and low temperature water-flow circuit to state cooling system, and the low temperature water-flow circuit includes heel row radiator
And low temperature water pump, the low temperature water-flow circuit is used for cooling down the oil cooler, before the high temperature water-flow circuit includes
Radiator and high-temperature water pump are arranged, the high temperature water-flow circuit is used for cooling down the V-cylinder block and the multiple monomer cylinder
Lid.
2. the cooling system of V-type multi-cylinder diesel engine according to claim 1, which is characterized in that the V-type multi-cylinder diesel engine
Further include gas handling system, the gas handling system includes left side air inlet pipe, right side air inlet pipe, left hand booster, right hand booster, a left side
After side charge air cooler and right side charge air cooler, the left side charge air cooler and the right side charge air cooler are separately mounted to the V-cylinder block
The both sides of top are held, the left hand booster and the right hand booster, which correspond to, is mounted on the left side charge air cooler and the right side
The top of charge air cooler and the top for protruding the V-cylinder block are connected with left side air filter in the left hand booster,
Be connected with right hand side air filter on the right hand booster, the left side air inlet pipe and the right side air inlet pipe respectively with it is described
Left side charge air cooler is arranged in the both sides upper end position of the V-cylinder block, the water at low temperature after being connected with the right side charge air cooler
Circulation loop is used for cooling down the left side charge air cooler and the right side charge air cooler simultaneously.
3. the cooling system of V-type multi-cylinder diesel engine according to claim 2, which is characterized in that the low temperature water pump setting
In position of the front end of the V-cylinder block above the lubricating oil pump, the high-temperature water pump is arranged in the V-cylinder block
Position of the front end above the diesel oil distributor, the low temperature water pump, the high-temperature water pump, the lubricating oil pump and described
Diesel oil distributor is centered around the surrounding of crank pulley, and the crank pulley respectively drives the low temperature water pump and the high temperature
Water pump, the coolant liquid for flowing through the V-cylinder block and the multiple monomer cylinder head enter the front-seat heat dissipation through outfall sewer
Device, there are three thermostats in parallel, the thermostat to be arranged in institute for connection between the outfall sewer and the front-seat radiator
The upper right side position of the front end of V-cylinder block is stated, the thermostat is connected to by radiator tube with the front-seat radiator, institute
State the top that radiator tube is arranged in the V-cylinder block.
4. the cooling system of V-type multi-cylinder diesel engine according to claim 3, which is characterized in that the water at low temperature is recycled back to
Road includes low temperature water dispenser, and the low temperature water dispenser is fixed on the front end of the V-cylinder block close to the crankshaft pulley
The position of top is taken turns, the low-temperature cooling water in the low temperature water pump distributes to the oil cooler through the low temperature water dispenser
With the left side charge air cooler and the right side charge air cooler.
5. the cooling system of V-type multi-cylinder diesel engine according to claim 4, which is characterized in that the left side charge air cooler and
The right side charge air cooler is square casing, and the inside of the square casing has air circulation cavity, the air circulation cavity
Cooling liquid flowing channel is equipped in the square casing of surrounding, the front side of the square casing is equipped with additional shell, the left side charge air cooler
Be equipped with middle casing between the right side charge air cooler, the both sides of the middle casing respectively with the left side charge air cooler and described
The inner side end of the additional shell of right side charge air cooler links together, and is equipped with and institute in the additional shell and the middle casing
State the circulation canal that left side charge air cooler is connected to the cooling liquid flowing channel inside the right side charge air cooler, the water inlet of the circulation canal
Mouthful and water outlet be arranged on the front end face of the middle casing, the water inlet and the water outlet by water pipe with it is described low
Warm water dispenser is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820214705.7U CN207829980U (en) | 2018-02-07 | 2018-02-07 | The cooling system of V-type multi-cylinder diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820214705.7U CN207829980U (en) | 2018-02-07 | 2018-02-07 | The cooling system of V-type multi-cylinder diesel engine |
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| CN207829980U true CN207829980U (en) | 2018-09-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223096A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | The cooling system of V-type multi-cylinder diesel engine |
| CN109098875A (en) * | 2018-10-29 | 2018-12-28 | 中车戚墅堰机车有限公司 | A kind of Novel diesel engine front end cabinet |
| CN109404119A (en) * | 2018-11-23 | 2019-03-01 | 沪东重机有限公司 | A kind of high-power engine high-temperature water pipe-line system |
-
2018
- 2018-02-07 CN CN201820214705.7U patent/CN207829980U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223096A (en) * | 2018-02-07 | 2018-06-29 | 广西玉柴机器股份有限公司 | The cooling system of V-type multi-cylinder diesel engine |
| CN109098875A (en) * | 2018-10-29 | 2018-12-28 | 中车戚墅堰机车有限公司 | A kind of Novel diesel engine front end cabinet |
| CN109098875B (en) * | 2018-10-29 | 2023-09-08 | 中车戚墅堰机车有限公司 | Novel diesel engine front end box |
| CN109404119A (en) * | 2018-11-23 | 2019-03-01 | 沪东重机有限公司 | A kind of high-power engine high-temperature water pipe-line system |
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Effective date of registration: 20230113 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |
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| TR01 | Transfer of patent right |