CN104533593A - Diesel engine cooling circulation system and method - Google Patents
Diesel engine cooling circulation system and method Download PDFInfo
- Publication number
- CN104533593A CN104533593A CN201410612767.XA CN201410612767A CN104533593A CN 104533593 A CN104533593 A CN 104533593A CN 201410612767 A CN201410612767 A CN 201410612767A CN 104533593 A CN104533593 A CN 104533593A
- Authority
- CN
- China
- Prior art keywords
- water pump
- pipeline
- thermoregulator
- cylinder head
- intercooler
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000000110 cooling liquid Substances 0.000 claims description 25
- 239000010721 machine oil Substances 0.000 claims description 18
- 239000002826 coolant Substances 0.000 claims description 15
- 238000005336 cracking Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012809 cooling fluid Substances 0.000 abstract 3
- 239000010705 motor oil Substances 0.000 abstract 2
- 230000008646 thermal stress Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/005—Controlling temperature of lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/04—Arrangements of liquid pipes or hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/08—Arrangements of lubricant coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a diesel engine cooling circulation system and method, and relates to a cooling system. The system comprises water pumps, an engine body, an engine oil cooler and a cylinder cover which are connected by pipelines, and is characterized in that the engine oil cooler is serially connected with the engine body and communicated with the water pump by a pipeline, a first temperature regulator is also serially connected on the communication pipeline and connected with the engine body by a pipeline; the cylinder cover is communicated with the water pump by a pipeline, the cylinder cover and the engine body are communicated with a water return pipe respectively by pipes, the water return pipe is connected with an intercooler by a pipeline and the intercooler is connected with the water pump by a pipeline, and a second temperature regulator is arranged on the pipeline for connecting the water return pipe and the intercooler and provided with a pipeline for directly connecting with the water pump. The flowing direction of the cooling fluid of the engine body and the cylinder cover is changed, the flowing distance of the cooling fluid is shortened, the pressure loss along the flowing is reduced, the cooling effect of the cooling fluid is increased, and the temperatures of the engine body and the cylinder cover are reduced.
Description
Technical field
The present invention relates to a kind of cooling system, specifically a kind of diesel engine cooling circulatory system and method.
Background technique
At present, the cooling system endless form of major part diesel generator group is that the high-pressure coolant flowed out through water pump first flows into machine oil cooler, then body is flowed into, cylinder head is flowed into by body, cooling liquid enters thermoregulator through cylinder head by return pipe, if the temperature of cooling liquid does not reach the open temp of thermoregulator, now thermoregulator cuts out, cooling liquid directly flows back to water pump, if the temperature of cooling liquid reaches the open temp of thermoregulator, cooling liquid flows to radiator, and the cooling liquid through intercooler flows to water pump again.What the cool cycles mode due to machine oil cooler, body and cylinder head adopted is the type of cooling of connecting, this just causes system to lose along stroke pressure, impel system large discharge and high-lift water pump make up due to along stroke pressure loss institute produce cooling capacity weakening.Due to series circulation cooling, can not ensure organism temperature and cylinder head temperature poor, and desirable diesel engine hot working is the temperature of temperature higher than cylinder head of body, the low inflation rate that improves of cylinder head temperature, organism temperature height can reduce frictional loss, improves fuel efficiency.In addition, cooling system continues to cool machine oil cooler, causes oil temperature very low, is unfavorable for diesel engine warming-up.
For solving the problem, the patent No. is that " a kind of circulating system of diesel engine cooling system " of ZL200720304915.7 discloses a kind of cooling recirculation system, adopt the mode that cylinder head is in parallel with body, all be communicated with water pump, can cool simultaneously, lose along stroke pressure although this scheme can reduce, but still there is following problem, one, cannot ensure there is temperature difference between body and cylinder head, inflation rate and fuelling rate can not be improved, two, only has a water pump, cooling effect is not good, three, machine oil cooler continues cooling, be unfavorable for diesel engine warming-up.
The patent No. patent that to be the denomination of invention of ZL201020299277.6 be " a kind of diesel engine cooling circulatory system " has been applied for again after applying for the company of above-mentioned patent, although disclose the scheme of two water pumps in that patent, but still fail to solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of diesel engine cooling circulatory system, solve the above problems.
The technical solution adopted for the present invention to solve the technical problems is: a kind of diesel engine cooling circulatory system, comprise water pump, body, machine oil cooler and cylinder head, pipeline is adopted to connect between them, it is characterized in that, machine oil cooler is connected with body, and be communicated with water pump by pipeline, the pipeline be communicated with also is serially connected with the first thermoregulator, and described first thermoregulator is also connected with body by pipeline; Described cylinder head is communicated with water pump by pipeline, cylinder head is communicated with return pipe respectively by pipe with body, return pipe connects intercooler by pipeline, intercooler is connected with water pump by pipeline, the pipeline that return pipe is connected with intercooler is also provided with the second thermoregulator, the second thermoregulator is also provided with pipeline and is directly connected with water pump.
Further, described water pump is divided into the first water pump and the second water pump two water pumps, and the first water pump and the second water pump lay respectively at body both sides; First thermoregulator is communicated with the first water pump respectively with the second thermoregulator, and cylinder head and intercooler are communicated with the second water pump respectively.
Further, the pipeline be connected with cylinder head with body is staggered form X-type helical pipe.
A kind of diesel engine cooling method, if the temperature of the Diesel Engine Coolants in warming-up process in water pump does not reach the first thermoregulator cracking pressure, cooling liquid directly enters body by pipeline, and on water pump, the ducted cooling liquid in another road enters cylinder head; If Diesel Engine Coolants reaches the first thermoregulator open temp, first thermoregulator is opened, the cooling liquid flowed out by water pump flows through machine oil cooler and body successively, cooling liquid in cylinder head and body flow to return pipe respectively through pipeline, and when return water temperature reaches the second thermoregulator open temp, the second thermoregulator is opened, high temperature coolant flows back to intercooler, and be back to water pump by intercooler, when return water temperature is lower than the second thermoregulator open temp, cryogenic liquid is back to water pump.
The invention has the beneficial effects as follows: 1. improve body and head coolant flows to, reduce cooling liquid flow process, reduce to improve cooling liquid cooling effect along stroke pressure loss, reduce body and cylinder cap temperature.
2. before machine oil cooler, add thermoregulator, ensure that oil temperature, reduce frictional loss, reduce fuel consume and noxious gas emission.
3. improve head coolant to flow to, greatly reduce temperature near cylinder head and exhaust valve, reduce intake valve gas temperature simultaneously, improve combustion condition, improve diesel engine output power, reduce the discharge of harmful gas CO, HC etc.
4. water pump arranges two and is arranged on body both sides respectively, can circulate to body and cylinder head simultaneously, accelerates cooling liquid speed, greatly reduces and lose along stroke pressure.
5. staggered form X-type helical pipe changes original water channel shape, sets up strengthening rib, improves cylinder head bulk strength, reduces the distortion that thermal stress produces, avoids generation slight crack.
6. staggered form X-type helical pipe upper and lower layers convection current cooling, emphasis cooling air cylinder cap high-temperature area, and by the hot water circuit of high-temperature area to low temperature area, cylinder head top, reach cylinder head homogeneous temperature everywhere, avoid cylinder head to produce slight crack due to thermal stress.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is structured flowchart of the present invention,
Fig. 3 is staggered form X-type helical pipe structural representation.
In figure, 1 water pump, 2 bodies, 3 machine oil cooler, 4 cylinder head, 5 staggered form X-type helical pipes.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, below in conjunction with specific embodiment, the present invention will be further described.
Embodiment one, a kind of diesel engine cooling circulatory system, comprise water pump, body, machine oil cooler and cylinder head, pipeline is adopted to connect between them, machine oil cooler is connected with body, and be communicated with water pump by pipeline, the pipeline be communicated with also is serially connected with the first thermoregulator, and described first thermoregulator is also connected with body by pipeline; Described cylinder head is communicated with water pump by pipeline, cylinder head is communicated with return pipe respectively by pipe with body, return pipe connects intercooler by pipeline, intercooler is connected with water pump by pipeline, the pipeline that return pipe is connected with intercooler is also provided with the second thermoregulator, the second thermoregulator is also provided with pipeline and is directly connected with water pump.
Working procedure: if the temperature of the Diesel Engine Coolants in warming-up process in water pump does not reach the first thermoregulator cracking pressure, cooling liquid directly enters body by pipeline, on water pump, the ducted cooling liquid in another road enters cylinder head, if Diesel Engine Coolants reaches the first thermoregulator open temp, first thermoregulator is opened, the cooling liquid flowed out by water pump flows through machine oil cooler and body successively, cooling liquid in cylinder head and body flow to return pipe respectively through pipeline, when return water temperature reaches the second thermoregulator open temp, second thermoregulator is opened, high temperature coolant flows back to intercooler, and be back to water pump by intercooler, when return water temperature is lower than the second thermoregulator open temp, cryogenic liquid is back to water pump.
Further, the pipeline be connected with cylinder head with body is staggered form X-type helical pipe, staggered form X-type helical pipe changes original water channel shape, set up strengthening rib, improve cylinder head bulk strength, and can upper and lower layers convection current cool, emphasis cooling air cylinder cap high-temperature area, and by the hot water circuit of high-temperature area to low temperature area, cylinder head top, reach cylinder head homogeneous temperature everywhere, avoid cylinder head to produce slight crack due to thermal stress.
Embodiment two, a kind of diesel engine cooling circulatory system, comprises water pump, body, machine oil cooler and cylinder head, adopts pipeline to connect between them, described water pump is divided into the first water pump and the second water pump two water pumps, and the first water pump and the second water pump lay respectively at body both sides; Machine oil cooler is connected with body, and is communicated with the first water pump by pipeline, and the pipeline be communicated with also is serially connected with the first thermoregulator, and described first thermoregulator is also connected with body by pipeline; Described cylinder head is communicated with the second water pump by pipeline, cylinder head is communicated with return pipe respectively by pipe with body, return pipe connects intercooler by pipeline, intercooler is connected with the second water pump by pipeline, the pipeline that return pipe is connected with intercooler is also provided with the second thermoregulator, the second thermoregulator is also provided with pipeline and is directly connected with the first water pump.
Working procedure: if the temperature of the Diesel Engine Coolants in warming-up process in the first water pump does not reach the first thermoregulator cracking pressure, cooling liquid directly enters body by pipeline, cooling liquid in second water pump pipeline enters cylinder head, if the Diesel Engine Coolants in the first water pump reaches the first thermoregulator open temp, first thermoregulator is opened, the cooling liquid flowed out by water pump flows through machine oil cooler and body successively, cooling liquid in cylinder head and body flow to return pipe respectively through staggered form X-type spiral channel, when return water temperature reaches the second thermoregulator open temp, second thermoregulator is opened, high temperature coolant flows back to intercooler, and be back to the second water pump by intercooler, when return water temperature is lower than the second thermoregulator open temp, cryogenic liquid is back to the first water pump.
Claims (4)
1. a diesel engine cooling circulatory system, comprise water pump, body, machine oil cooler and cylinder head, pipeline is adopted to connect between them, it is characterized in that, machine oil cooler is connected with body, and be communicated with water pump by pipeline, the pipeline be communicated with also is serially connected with the first thermoregulator, and described first thermoregulator is also connected with body by pipeline; Described cylinder head is communicated with water pump by pipeline, cylinder head is communicated with return pipe respectively by pipe with body, return pipe connects intercooler by pipeline, intercooler is connected with water pump by pipeline, the pipeline that return pipe is connected with intercooler is also provided with the second thermoregulator, the second thermoregulator is also provided with pipeline and is directly connected with water pump.
2. a kind of diesel engine cooling circulatory system according to claim 1, is characterized in that, described water pump is divided into the first water pump and the second water pump two water pumps, and the first water pump and the second water pump lay respectively at body both sides; First thermoregulator is communicated with the first water pump respectively with the second thermoregulator, and cylinder head and intercooler are communicated with the second water pump respectively.
3. a kind of diesel engine cooling circulatory system according to claim 1 and 2, is characterized in that, the pipeline be connected with cylinder head with body is staggered form X-type helical pipe.
4. a diesel engine cooling method, it is characterized in that, if the temperature of the Diesel Engine Coolants in warming-up process in water pump does not reach the first thermoregulator cracking pressure, cooling liquid directly enters body by pipeline, and on water pump, the ducted cooling liquid in another road enters cylinder head; If Diesel Engine Coolants reaches the first thermoregulator open temp, first thermoregulator is opened, the cooling liquid flowed out by water pump flows through machine oil cooler and body successively, cooling liquid in cylinder head and body flow to return pipe respectively through pipeline, and when return water temperature reaches the second thermoregulator open temp, the second thermoregulator is opened, high temperature coolant flows back to intercooler, and be back to water pump by intercooler, when return water temperature is lower than the second thermoregulator open temp, cryogenic liquid is back to water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612767.XA CN104533593B (en) | 2014-11-04 | 2014-11-04 | Diesel engine cooling circulation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612767.XA CN104533593B (en) | 2014-11-04 | 2014-11-04 | Diesel engine cooling circulation system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533593A true CN104533593A (en) | 2015-04-22 |
| CN104533593B CN104533593B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410612767.XA Expired - Fee Related CN104533593B (en) | 2014-11-04 | 2014-11-04 | Diesel engine cooling circulation system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533593B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184895A (en) * | 2018-11-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | The aerial cooling system of water |
| CN115306512A (en) * | 2022-09-07 | 2022-11-08 | 河北华北柴油机有限责任公司 | Multi-cylinder V-shaped diesel engine balanced cooling system capable of warming up quickly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62247112A (en) * | 1986-03-28 | 1987-10-28 | Aisin Seiki Co Ltd | Cooling system control device for internal combustion engine |
| CN201103451Y (en) * | 2007-11-30 | 2008-08-20 | 广西玉柴机器股份有限公司 | Circulating system of diesel engine cooling system |
| CN201874658U (en) * | 2010-11-08 | 2011-06-22 | 浙江吉利汽车研究院有限公司 | Automobile engine cooling system |
| CN102400764A (en) * | 2011-12-05 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Engine cooling circulation device |
| CN103291435A (en) * | 2012-02-28 | 2013-09-11 | 株式会社三国 | Cooling water control valve apparatus |
| CN203394622U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Engine oil cooling and filtering system |
-
2014
- 2014-11-04 CN CN201410612767.XA patent/CN104533593B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62247112A (en) * | 1986-03-28 | 1987-10-28 | Aisin Seiki Co Ltd | Cooling system control device for internal combustion engine |
| CN201103451Y (en) * | 2007-11-30 | 2008-08-20 | 广西玉柴机器股份有限公司 | Circulating system of diesel engine cooling system |
| CN201874658U (en) * | 2010-11-08 | 2011-06-22 | 浙江吉利汽车研究院有限公司 | Automobile engine cooling system |
| CN102400764A (en) * | 2011-12-05 | 2012-04-04 | 中国重汽集团济南动力有限公司 | Engine cooling circulation device |
| CN103291435A (en) * | 2012-02-28 | 2013-09-11 | 株式会社三国 | Cooling water control valve apparatus |
| CN203394622U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | Engine oil cooling and filtering system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184895A (en) * | 2018-11-09 | 2019-01-11 | 广西玉柴机器股份有限公司 | The aerial cooling system of water |
| CN115306512A (en) * | 2022-09-07 | 2022-11-08 | 河北华北柴油机有限责任公司 | Multi-cylinder V-shaped diesel engine balanced cooling system capable of warming up quickly |
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| Publication number | Publication date |
|---|---|
| CN104533593B (en) | 2017-02-15 |
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