CN104806742B - Speed changer and cooling system of vehicle with cooling system and the vehicle using the system - Google Patents

Speed changer and cooling system of vehicle with cooling system and the vehicle using the system Download PDF

Info

Publication number
CN104806742B
CN104806742B CN201510094307.7A CN201510094307A CN104806742B CN 104806742 B CN104806742 B CN 104806742B CN 201510094307 A CN201510094307 A CN 201510094307A CN 104806742 B CN104806742 B CN 104806742B
Authority
CN
China
Prior art keywords
water
cooling
motor
speed changer
cooling channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510094307.7A
Other languages
Chinese (zh)
Other versions
CN104806742A (en
Inventor
陈慧勇
邓伟
尚明利
陈正亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yutong Bus Co Ltd
Original Assignee
Zhengzhou Yutong Bus Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Yutong Bus Co Ltd filed Critical Zhengzhou Yutong Bus Co Ltd
Priority to CN201510094307.7A priority Critical patent/CN104806742B/en
Publication of CN104806742A publication Critical patent/CN104806742A/en
Application granted granted Critical
Publication of CN104806742B publication Critical patent/CN104806742B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/0412Cooling or heating; Control of temperature
    • F16H57/0415Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417Heat exchangers adapted or integrated in the gearing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00Arrangement in connection with cooling of propulsion units
    • B60K11/02Arrangement in connection with cooling of propulsion units with liquid cooling

Abstract

The present invention relates to a kind of speed changer with cooling system and cooling system of vehicle and using the vehicle of the system, belong to vehicle cooling technology field.The present invention on speed changer by setting up water-cooling channel, the water-cooling channel is used to be arranged in the motor water cooling circulatory system, the water-cooling channel on speed changer is connected on vehicle in the cooling recirculation system of motor, the cooling to speed changer is realized using the cooling resource of motor.The present invention to motor when cooling down, and cooling water flows into motor water cooling passage and speed changer water-cooling channel simultaneously, while realizing the cooling to motor and speed changer.The present invention is simple in construction, easily realizes, the components utilising cooling resource of motor improves cooling effectiveness.

Description

Speed changer and cooling system of vehicle with cooling system and the vehicle using the system
Technical field
The present invention relates to a kind of speed changer with cooling system and cooling system of vehicle and using the vehicle of the system, belong to Vehicle cooling technology field.
Background technology
At present, traditional in motor-planet row constitutes whole power assembly system, motor exclusive use is used A set of water-cooling system, speed changer utilizes the fluid of itself, and the gear of use stirs traditional type of cooling of oil radiating.This set system handle The cooling system of motor and engine is separated, and fails the cooling resource for making full use of vehicle to provide, and in its type of cooling There is also following drawback.
Due to planet row speed changer self structure and functional characteristics, inside planet row speed changer without normal rotating disk (this and Conventional transmissions have significant difference), lead to not the fixed gear for stirring oil of control, it is difficult to which that realizes speed changer entirety stirs oil cooling But;Due to planet row speed changer self structure and functional characteristics, there is high rotating speed gear inside speed changer, frictional heat amount is larger, Only cooled down by speed changer itself, it is difficult to which temperature of transmission is lowered;Such as cooled down, then needed inside speed changer using speed changer itself Using a large amount of transmission oils, both add with oily cost, variator efficiency is reduced again.
The content of the invention
It is an object of the invention to provide a kind of speed changer with cooling system and cooling system of vehicle and using the system Vehicle, to solve in existing cooling system of vehicle because transmitter is cold using what is separated with vehicular electric machine and engine-cooling system But mode causes the cooling resource for failing to make full use of vehicle to provide.
The present invention provides a kind of speed changer with cooling system, including speed changer and speed change to solve above-mentioned technical problem Device cooling device, the speed changer cooling device includes the water-cooling channel being arranged on speed changer and entering of being connected with water-cooling channel The mouth of a river and delivery port, the water inlet and delivery port are used to access motor cooling-cycle device.
Described water-cooling channel is the cooling sandwith layer water channel being arranged on case of transmission.
Described speed changer is planet row speed changer.
The invention provides a kind of cooling system of vehicle, including by refrigerating module, water pump and the water cooling being arranged on motor The motor cooling-cycle device that passage is constituted, the cooling system also includes the speed changer cooling dress for being used to be arranged on speed changer Put, the speed changer cooling device include the water-cooling channel being arranged on speed changer and the water inlet that is connected with the water-cooling channel and Delivery port, the water inlet and delivery port being arranged on speed changer is connected to motor cooling-cycle device.
Described cooling system also includes the cooling device being arranged on electric machine controller, and the cooling device includes motor control Device water-cooling channel processed, the water inlet of the electric machine controller water-cooling channel is connected to the water outlet of water pump in motor cooling-cycle device Mouthful, the delivery port of electric machine controller water-cooling channel is connected to the water inlet of motor water cooling passage.
The water-cooling channel being arranged on motor includes motor water-cooling channel and the motor water cooling being arranged in parallel Water-cooling channel on passage, the speed changer is arranged in parallel cold in motor with motor water-cooling channel and motor water-cooling channel But in EGR.
The water-cooling channel being arranged on motor includes motor water-cooling channel and the motor water cooling being arranged in parallel Water-cooling channel on passage, the speed changer is connected with motor water-cooling channel, and the water inlet of speed changer water-cooling channel is connected to The delivery port of motor water-cooling channel, the delivery port of speed changer water-cooling channel is connected to refrigerating module.
The water-cooling channel being arranged on speed changer is the cooling sandwith layer water channel being arranged on case of transmission.
Present invention also offers a kind of vehicle, including motor, speed changer and cooling system of vehicle, cooling system of vehicle includes The motor cooling-cycle device being made up of radiating module, water pump and the water-cooling channel being arranged on motor, the vehicle cooling system System also includes the speed changer cooling device being arranged on speed changer, and speed changer cooling device includes the water cooling being arranged on speed changer Passage and the water inlet and delivery port connected with the water-cooling channel, the water inlet and delivery port being arranged on speed changer are connected to electricity Machine cooling-cycle device.
Described cooling system of vehicle also includes the cooling device being arranged on electric machine controller, and the cooling device includes electricity Machine controller water-cooling channel, the water inlet of the electric machine controller water-cooling channel is connected to water pump in motor cooling-cycle device Delivery port, the delivery port of electric machine controller water-cooling channel is connected to the water inlet of motor water cooling passage.
The beneficial effects of the invention are as follows:The present invention on speed changer by setting up water-cooling channel, and the water-cooling channel is used to set Put in the motor water cooling circulatory system, the water-cooling channel on speed changer is connected to the cooling recirculation system of the motor on vehicle In, the cooling to speed changer is realized using the cooling resource of motor.The present invention to motor when cooling down, and cooling water flows simultaneously Enter motor water cooling passage and speed changer water-cooling channel, while realizing the cooling to motor and speed changer.The present invention is simple in construction, easily Realize that the components utilising cooling resource of motor improves cooling effectiveness.
Brief description of the drawings
Fig. 1 is the structural representation of system speed-variable device to be cooled of the invention;
Fig. 2 is the principle schematic of cooling system of vehicle embodiment one of the present invention;
Fig. 3 is the principle schematic of cooling system of vehicle embodiment two of the present invention.
Embodiment
The ` embodiments to the present invention are further described below in conjunction with the accompanying drawings.
A kind of embodiment with cooling system speed changer of the present invention
As shown in figure 1, the system speed-variable device to be cooled of the present invention includes speed changer and the cooling being arranged on speed changer Device, wherein cooling device include the water-cooling channel 2 being arranged on speed changer and the water inlet 1 that is connected with the water-cooling channel and Delivery port 3, water inlet 1 and delivery port 2 are used to be connected to the motor water cooling circulatory system, are attempted by the cooling device on speed changer On vehicle in the cooling recirculation system of motor.Water-cooling channel in the present embodiment on speed changer can be diffraction in case of transmission On pipeline or the cooling sandwith layer water channel that is set on case of transmission.Motor is when being cooled down, and the water in water pump is not The water-cooling channel of motor is only flowed into, while the water-cooling channel of speed changer is also flowed into, while the cooling to motor and speed changer is realized, Take full advantage of the cooling resource of motor.
A kind of embodiment one of cooling system of vehicle of the present invention
As shown in Fig. 2 the cooling system of vehicle of the present invention includes refrigerating module, water pump, water tank and is arranged on motor In the motor cooling-cycle device that water-cooling channel is constituted, and the speed changer cooling device being arranged on speed changer, the present embodiment Motor includes being equipped with water-cooling channel on motor and motor, motor and motor, and each water-cooling channel is simultaneously located at electricity In machine cooling-cycle device, and the water inlet and delivery port of each water-cooling channel use same-interface, and speed changer cooling device includes For the water-cooling channel being arranged on speed changer and the water inlet and delivery port that are connected with the water-cooling channel, it is arranged on speed changer The water inlet of water-cooling channel is connected to the delivery port of water pump together with the water inlet of motor water cooling passage, is arranged on water on speed changer The delivery port of cold passage is together connected to the import of refrigerating module with the delivery port of motor water cooling passage, and the outlet of refrigerating module connects It is connected to the import of water pump.
The cooling water come out from water pump, it is necessary to cool down motor, planetary transmission and motor respectively.Due in original In the cooling system of some generator and motor, speed changer is added, now original water route, water resistance is changed, The flow for flowing into all parts water is caused also to be changed.If the cooling water inflow of each part is unreasonable, cooling is not reached Effect.As shown in Fig. 2 the water flowed out originally from water pump only cools down motor and motor, it needs the flow-rate ratio of cooling water For 1:2, it is 2 to be also equivalent to its water resistance:1.Due to speed changer cooling requirement and motor seemingly, so motor water need to be measured Resistance, is then designed to the water channel water resistance of speed changer, the now water resistance ratio of whole cooling water channel similar with motor water channel water resistance, Motor water resistance:Speed changer water resistance:Motor water resistance is 2:2:1.Simultaneously in order that motor and the original water of motor Flow is constant, need to calculate new total Water according to present water resistance situation, and according to this total Water, redesign exploitation water Pump.
The operation principle of the cooling system of vehicle is as follows:The ` water of water tank respectively enters motor and speed changer by water pump Water-cooling channel, is cooled down to motor and speed changer, after having cooled down, and the water of each water-cooling channel is entered together by respective delivery port Enter refrigerating module, refrigerating module starts to cool to it, and the water after cooling again flows into water pump, realize the circulation of water cooling and make With.
A kind of embodiment two of cooling system of vehicle of the present invention
This implementation is the speed changer water-cooling channel that will be arranged in parallel with motor water-cooling channel and motor water-cooling channel String is located at after motor water-cooling channel, i.e., the water inlet of speed changer water-cooling channel is connected with the delivery port of motor water-cooling channel, The delivery port of speed changer water-cooling channel is connected to refrigerating module.The operation principle of the cooling system of vehicle is as follows:The ` water warp of water tank The water-cooling channel that water pump respectively enters motor and motor is crossed, motor and motor are cooled down, after having cooled down, The water of motor water-cooling channel is directly entered refrigerating module and cooled down, and the water of motor water-cooling channel enters speed changer water cooling Passage, is cooled down to speed changer, after having cooled down, and the water of speed changer water-cooling channel enters refrigerating module, and refrigerating module starts pair It is cooled, and the water after cooling again flows into water pump, realizes the recycling of water cooling.
Speed changer and motor in series are entered into a water route, at the same it is in parallel with motor, now need to change motor water Resistance, makes motor water resistance identical with speed changer water resistance, while total water resistance after its series connection, it is desirable to and the water resistance ratio of motor is 2: 1, now the water of motor is constant, simply reduces the cooling water inflow of the generator for requiring cooling lower slightly and speed changer, Cooling effect can equally be reached.
A kind of embodiment three of cooling system of vehicle of the present invention
For the cooling resource further provided using vehicle, this implementation is cold to vehicle on the basis of embodiment one and two But system has done further improvement, and cooling device is set on electric machine controller, and the cooling device on the electric machine controller is by setting The water-cooling channel put on electric machine controller is constituted, and the water-cooling channel is serially connected in pump outlet in embodiment one and embodiment two Between motor water cooling passage water inlet, illustrated below with the structure in embodiment two, as shown in figure 3, electric machine controller The water inlet of water-cooling channel is connected to the delivery port of water pump, and the delivery port of electric machine controller water-cooling channel is connected to motor water cooling and led to The water inlet in road.The cooling procedure of the cooling system of vehicle is as follows:The water of water tank initially enters electric machine controller by water pump Water-cooling channel, is cooled down to electric machine controller, cooled down electric machine controller water respectively enter motor water cooling lead to Road and motor water-cooling channel, are cooled down to motor and motor, after having cooled down, motor water-cooling channel Water is directly entered refrigerating module and cooled down, and the water of motor water-cooling channel enters speed changer water-cooling channel, and speed changer is carried out Cooling, after having cooled down, the water of speed changer water-cooling channel enters refrigerating module, and refrigerating module starts to cool to it, after cooling Water again flow into water pump, realize the recycling of water cooling.Simultaneously because the water-cooling channel of electric machine controller is arranged on into cooling The leading portion of the circulatory system, meets the electric machine controller requirement high to cooling effect.
A kind of embodiment of vehicle of the present invention
Vehicle in this implementation includes motor, speed changer, electric machine controller and cooling system of vehicle, wherein vehicle cooling system The concrete structure of system refer to the description in cooling system of vehicle embodiment one, embodiment two and embodiment three, no longer weigh here Multiple narration.Speed changer uses planet row speed changer, and motor, speed changer and electric machine controller can be sent out the vehicle in the process of running The service life of each device of heat affecting, vehicle is cooled down by cooling system of vehicle to above-mentioned device in this implementation, water The water of pump first passes around the water-cooling channel on electric machine controller and cooled down for electric machine controller, meets electric machine controller to dissipating The high requirement of hot property, then respectively enters the water-cooling channel of motor and speed changer by electric machine controller water-cooling channel water, Cooling treatment, after having cooled down, last motor water cooling passage and speed changer water-cooling channel further are carried out to motor and speed changer Water is together cooled down into refrigerating module, and the water after cooling through refrigerating module again flows into water pump, realizes the circulation of water cooling and makes With.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention This thinking is above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, designs various changes Shape structure need not spend creative work.Embodiment is carried out without departing from the principles and spirit of the present invention Change, modification, replacement and modification are still fallen within protection scope of the present invention.

Claims (5)

1. a kind of cooling system of vehicle, including the motor being made up of refrigerating module, water pump and the water-cooling channel being arranged on motor Cooling-cycle device, it is characterised in that the cooling system also includes the speed changer cooling device for being used to be arranged on speed changer, institute State water-cooling channel and the water inlet connected with the water-cooling channel and water outlet that speed changer cooling device includes being arranged on speed changer Mouthful, the water inlet and delivery port being arranged on speed changer are connected to motor cooling-cycle device;The water being arranged on motor Cold passage include water-cooling channel on the motor water-cooling channel and motor water-cooling channel that are arranged in parallel, the speed changer with Motor water-cooling channel is connected, and the water inlet of speed changer water-cooling channel is connected to the delivery port of motor water-cooling channel, speed changer The delivery port of water-cooling channel is connected to refrigerating module;Make motor water resistance identical with speed changer water resistance, meanwhile, make motor, change The water resistance ratio of total water resistance and motor after fast device series connection is 2:1.
2. cooling system of vehicle according to claim 1, it is characterised in that described cooling system also includes being arranged on electricity Cooling device on machine controller, the cooling device includes electric machine controller water-cooling channel, the electric machine controller water-cooling channel Water inlet be connected to the delivery port of water pump in motor cooling-cycle device, the delivery port of electric machine controller water-cooling channel is connected to The water inlet of motor water cooling passage.
3. cooling system of vehicle according to claim 1, it is characterised in that the water-cooling channel being arranged on speed changer To be arranged on the cooling sandwith layer water channel on case of transmission.
4. a kind of vehicle, including motor, speed changer and cooling system of vehicle, cooling system of vehicle are included by radiating module, water pump The motor cooling-cycle device constituted with the water-cooling channel being arranged on motor, it is characterised in that the cooling system of vehicle is also Including the speed changer cooling device being arranged on speed changer, speed changer cooling device includes the water-cooling channel being arranged on speed changer And the water inlet and delivery port connected with the water-cooling channel, it is cold that the water inlet and delivery port being arranged on speed changer are connected to motor But EGR;The water-cooling channel being arranged on motor includes the motor water-cooling channel and motor water being arranged in parallel Water-cooling channel on cold passage, the speed changer is connected with motor water-cooling channel, the water inlet connection of speed changer water-cooling channel To the delivery port of motor water-cooling channel, the delivery port of speed changer water-cooling channel is connected to refrigerating module;Make motor water resistance and Speed changer water resistance is identical, meanwhile, make motor, speed changer series connection after total water resistance and motor water resistance ratio be 2:1.
5. vehicle according to claim 4, it is characterised in that described cooling system of vehicle also includes being arranged on motor control Cooling device on device processed, the cooling device includes electric machine controller water-cooling channel, and the electric machine controller water-cooling channel enters The mouth of a river is connected to the delivery port of water pump in motor cooling-cycle device, and the delivery port of electric machine controller water-cooling channel is connected to motor The water inlet of water-cooling channel.
CN201510094307.7A 2015-03-03 2015-03-03 Speed changer and cooling system of vehicle with cooling system and the vehicle using the system Active CN104806742B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510094307.7A CN104806742B (en) 2015-03-03 2015-03-03 Speed changer and cooling system of vehicle with cooling system and the vehicle using the system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510094307.7A CN104806742B (en) 2015-03-03 2015-03-03 Speed changer and cooling system of vehicle with cooling system and the vehicle using the system

Publications (2)

Publication Number Publication Date
CN104806742A CN104806742A (en) 2015-07-29
CN104806742B true CN104806742B (en) 2017-07-28

Family

ID=53691834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510094307.7A Active CN104806742B (en) 2015-03-03 2015-03-03 Speed changer and cooling system of vehicle with cooling system and the vehicle using the system

Country Status (1)

Country Link
CN (1) CN104806742B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107225956B (en) * 2016-03-24 2020-11-20 长城汽车股份有限公司 Power system
DE102017201117A1 (en) * 2017-01-24 2018-07-26 Bayerische Motoren Werke Aktiengesellschaft Method for cooling an electric machine and electric machine
CN109228836A (en) * 2018-11-01 2019-01-18 珠海格力电器股份有限公司 A kind of integrated cooling system and automobile power drive system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2890430B1 (en) * 2005-09-05 2008-10-24 Peugeot Citroen Automobiles Sa OIL COOLING CIRCUIT OF A GEAR BOX
CN201914075U (en) * 2010-12-20 2011-08-03 浙江吉利汽车研究院有限公司 Cooling system of hybrid electric vehicle
CN102926417A (en) * 2012-11-16 2013-02-13 山推工程机械股份有限公司 Electric drive bulldozer and cooling device of electric drive bulldozer
CN203790985U (en) * 2014-04-16 2014-08-27 中煤科工集团武汉设计研究院有限公司 Novel coal smashing device with filtering device
CN104070987A (en) * 2014-06-26 2014-10-01 北京新能源汽车股份有限公司 Integrated cooling system for electric vehicle and heat management control method thereof
CN204628520U (en) * 2015-03-03 2015-09-09 郑州宇通客车股份有限公司 The vehicle of a kind of speed changer with cooling and cooling system of vehicle and this system of use

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3818007B2 (en) * 2000-03-21 2006-09-06 日産自動車株式会社 Cooling system for water-cooled internal combustion engine for vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2890430B1 (en) * 2005-09-05 2008-10-24 Peugeot Citroen Automobiles Sa OIL COOLING CIRCUIT OF A GEAR BOX
CN201914075U (en) * 2010-12-20 2011-08-03 浙江吉利汽车研究院有限公司 Cooling system of hybrid electric vehicle
CN102926417A (en) * 2012-11-16 2013-02-13 山推工程机械股份有限公司 Electric drive bulldozer and cooling device of electric drive bulldozer
CN203790985U (en) * 2014-04-16 2014-08-27 中煤科工集团武汉设计研究院有限公司 Novel coal smashing device with filtering device
CN104070987A (en) * 2014-06-26 2014-10-01 北京新能源汽车股份有限公司 Integrated cooling system for electric vehicle and heat management control method thereof
CN204628520U (en) * 2015-03-03 2015-09-09 郑州宇通客车股份有限公司 The vehicle of a kind of speed changer with cooling and cooling system of vehicle and this system of use

Also Published As

Publication number Publication date
CN104806742A (en) 2015-07-29

Similar Documents

Publication Publication Date Title
CN105576321B (en) Battery pack thermal management system
CN106414941B (en) The cooling circuit of internal combustion engine
CN108625970B (en) Water-cooling heat radiating system and engineering truck for engineering truck
CN104806742B (en) Speed changer and cooling system of vehicle with cooling system and the vehicle using the system
CN106183786A (en) Cooling recirculation system, automobile for hybrid power system
CN105097733B (en) A kind of air-cooled water cooling combined radiating device based on paraffin
CN206017679U (en) A kind of transmission oil temperature control system
CN207960757U (en) Vehicle cooling control system
KR20120117919A (en) Temperature differential engine device
CN106884974A (en) A kind of wind turbine generator system gear box lubricating system and its control method
CN205001290U (en) Automatic cooling system device is independently selected to automatically controlled type oil circuit
CN108473040A (en) Heat management for power drive system
CN106150596A (en) A kind of Diesel engine cooling system and lubricating system integration module
CN201138099Y (en) Direct cooling circulated water refrigerating mechanism
CN104196990B (en) A kind of oil cooling system
CN102926417A (en) Electric drive bulldozer and cooling device of electric drive bulldozer
CN204628520U (en) The vehicle of a kind of speed changer with cooling and cooling system of vehicle and this system of use
CN209325010U (en) A kind of wind-driven generator wheel-box cooling system
CN206884725U (en) The heat management system and vehicle of vehicle
CN201006707Y (en) Motorcycle oil-water refrigerating mechanism
CN205468516U (en) Hybrid electric vehicle cooling system
CN206655786U (en) Cooling device on gearbox of wind turbine oil circulation system
CN112377492B (en) Hydraulic oil cooling system of engineering vehicle
CN205001484U (en) Cooling system device is independently selected to oil circuit
CN212899657U (en) Cooling and lubricating system for gear box of large-megawatt wind driven generator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 450061 Yutong Road, Guancheng District, Zhengzhou City, Henan Province

Patentee after: Yutong Bus Co., Ltd

Address before: 450016 shibalihe Yutong Industrial Park, Zhengzhou City, Henan Province

Patentee before: Zhengzhou Yutong Bus Co., Ltd