CN208310929U - A kind of diesel engine oil supply system preheating device and engineering machinery - Google Patents
A kind of diesel engine oil supply system preheating device and engineering machinery Download PDFInfo
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- CN208310929U CN208310929U CN201820750316.6U CN201820750316U CN208310929U CN 208310929 U CN208310929 U CN 208310929U CN 201820750316 U CN201820750316 U CN 201820750316U CN 208310929 U CN208310929 U CN 208310929U
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- diesel engine
- heating
- coolant liquid
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- 239000010710 diesel engine oil Substances 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 97
- 238000010438 heat treatment Methods 0.000 claims abstract description 92
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 238000001816 cooling Methods 0.000 claims abstract description 71
- 239000002826 coolant Substances 0.000 claims abstract description 58
- 239000000295 fuel oil Substances 0.000 claims abstract description 50
- 239000002828 fuel tank Substances 0.000 claims abstract description 48
- 239000000446 fuel Substances 0.000 claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to engine arts, disclose a kind of diesel engine oil supply system preheating device and engineering machinery, the preheating device includes fuel tank, diesel engine assembly, the oil inlet pipe and oil return line for being connected to fuel tank and diesel engine assembly, it further include that the fuel heater of fuel oil in it, and the first electric heater for heating fuel oil in oil inlet pipe and/or oil return line are heated for the coolant liquid in the Heating Diesel Fuel engine cooling system and coolant liquid after heating is sent into the fuel tank.The utility model, which passes through the coolant liquid in fuel heater Heating Diesel Fuel engine cooling system and the coolant liquid after heating is sent into fuel tank, is used for the fuel oil in heated fuel oil case, the preheating to fuel oil in fuel tank；The fuel oil in oil inlet pipe and/or oil return line is heated by the first electric heater, analysis wax phenomenon is eliminated, realizes the preheating to oil inlet pipe and/or oil return line, solve the problems, such as extremely cold area diesel engine difficulty in starting.
Description
Technical field
The utility model relates to diesel engine realm more particularly to a kind of diesel engine oil supply system preheating device and
Engineering machinery.
Background technique
Oil inlet pipe, the oil return pipe of diesel engine are set to outside diesel engine body, due to containing wax in fuel oil,
In temperature lower than after certain temperature, analysis wax phenomenon, which easily occurs, in the fuel oil in oil inlet pipe or oil return pipe then leads to pipeline blockage, makes
Obtain diesel engine difficulty in starting.
Generally the oil supply system of diesel engine is preheated using cold starting aid system in the prior art, such as ether
It sprays cold starting system or fuel oil presets cold starting system, wherein the working principle of ether injection cold starting system is: in diesel oil
Ether is sprayed when engine cold-start into air inlet pipe and starts liquid, diesel engine sucks ether starting liquid in cylinder, because of second
The flash-point of ether is lower and detonation and then diesel pilot can occur；But due in oil inlet pipe when temperature is too low and oil return pipe because going out
Now analysis wax phenomenon then leads to pipeline blockage, so that oil inlet pipe can not effectively provide fuel oil, causes diesel engine that can not start；
The too low viscosity that is allowed to of oil temperature is larger when additionally, due to diesel engine starting, can not effectively provide lubrication, will lead to diesel oil
Engine scuffing aggravation, for a long time using will lead to diesel engine overall performance decline.
The working principle of fuel-firing preheating cold starting system is to concatenate a fuel oil in the cooling system of diesel engine and add
Hot device heats diesel engine coolant liquid before diesel engine starting, and reaches the temperature of diesel engine body
It arrives or is higher than minimum cooling start temperature, so that diesel engine be made smoothly to start.The above method can only guarantee diesel engine
The temperature of body is equal to or higher than minimum cooling start temperature, but since oil inlet pipe, oil return pipe are set to diesel engine body
The problem of outside, the above method not can solve the analysis wax phenomenon because of oil inlet pipe and oil return pipe due to lead to pipeline blockage.
Utility model content
The purpose of this utility model is to provide a kind of diesel engine oil supply system preheating device and engineering machinery, can
To diesel engine oil supply system, the analysis wax of oil inlet pipe and oil return pipe when temperature is lower is solved the problems, such as, guarantee diesel engine function
It is enough to work normally.
For this purpose, the utility model uses following technical scheme:
A kind of diesel engine oil supply system preheating device, including fuel tank, diesel engine assembly, it is connected to fuel tank
It further include for the cooling in Heating Diesel Fuel engine cooling system with the oil inlet pipe and oil return line of diesel engine assembly
Coolant liquid after heating is simultaneously sent into the fuel tank heating with the fuel heater of fuel oil in it, and for heating oil inlet by liquid
First electric heater of fuel oil in pipeline and/or oil return line.
Further, the fuel heater and the fuel tank are by the first oil circuit connection, in the fuel heater
Equipped with heating channel, the fuel heater can extract the fuel oil in the fuel tank and by lighting the fuel oil formation
Heat passes through the coolant liquid in the heating channel.
Further, heating tube is equipped in the fuel tank, the one end in the heating channel is connected to the heating tube
The other end of one end, the heating channel is connected to the coolant liquid liquid outlet of the diesel engine assembly, the heating tube
The other end is connected to the coolant liquid inlet of the diesel engine assembly.
Further, the oil inlet pipe and/or the oil return line are equipped with filter, the transparent cup of the filter
Inside it is equipped with the second electric heater.
Further, the side wall of the oil inlet pipe and/or oil return line is equipped with interlayer, and first electric heater is set
In in the interlayer.
Further, first electric heater is resistance heater or electrothermal film heater or thick film heater.
Further, the pipeline for connecting the coolant liquid liquid outlet and the heating channel liquid feeding end is the first cooling tube
Road, connect it is described heating channel outlet end and the heating tube pipeline be the second cooling line, first cooling line and
Second cooling line is connected to by third cooling line, and the third cooling line is equipped with check valve；The coolant liquid goes out liquid
The coolant liquid of mouth outflow can flow to the heating tube optionally through the check valve or be flowed to by the heating channel
The heating tube.
Further, the one end and second cooling line of first cooling line close to the coolant liquid liquid outlet
One end close to the heating channel is connected to by the third cooling line.
To achieve the goals above, the utility model additionally provides a kind of engineering machinery, including above-mentioned diesel engine
Oil supply system preheating device.
Further, it is equipped with heating channel in fuel heater, heating tube, the heating channel connection are equipped in fuel tank
There is the second cooling line, second cooling line passes through the driver's cabin of engineering machinery and is connected to heating tube.
The utility model has the beneficial effects that the utility model passes through in fuel heater Heating Diesel Fuel engine cooling system
Coolant liquid, and the coolant liquid after heating is sent into fuel tank with the fuel oil in heated fuel oil case, is realized to fuel tank internal combustion
The preheating of oil；Simultaneously by the first electric heater being set on oil inlet pipe and/or oil return line, heat oil inlet pipe and/or
Fuel oil in oil return line analyses wax phenomenon to eliminate, dredges oil inlet pipe and/or oil return line, realize to oil inlet pipe and/or
The preheating of oil return line, fuel tank normally can provide fuel oil for diesel engine after guaranteeing diesel engine work, and
Fuel Remained can return to fuel tank, fundamentally solve the problems, such as extremely cold area diesel engine difficulty in starting.
Detailed description of the invention
Fig. 1 is the schematic diagram of diesel engine oil supply system preheating device described in the utility model.
In figure:
1, fuel tank；2, diesel engine assembly；3, oil inlet pipe；4, oil return line；5, fuel heater；6, it heats
Pipe；7, filter；
11, the first cooling line；12, the second cooling line；13, third cooling line；14, check valve；15, driver's cabin；
16, the first oil circuit；17, the 4th cooling line；18, radiator.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, present embodiments providing a kind of diesel engine oil supply system preheating device, including fuel tank 1, bavin
Oil turbine assembly 2 is connected to the oil inlet pipe 3 and oil return line 4 of fuel tank 1 and diesel engine assembly 2, for heating bavin
Coolant liquid after heating is simultaneously sent into the fuel tank 1 to heat fuel oil in it by coolant liquid in oil turbine cooling system
Fuel heater 5, and the first electric heater for heating fuel oil in oil inlet pipe 3 and/or oil return line 4 (do not show in figure
Out).Preferably, in the present embodiment, the first electric heater is equipped on the oil inlet pipe 3 and the oil return line 4.
The present embodiment passes through the coolant liquid in 5 Heating Diesel Fuel engine cooling system of fuel heater, and will be after heating
Coolant liquid is sent into fuel tank 1 with the fuel oil in heated fuel oil case 1, realizes the preheating to fuel oil in fuel tank 1；Simultaneously by setting
The first electric heater on oil inlet pipe 3 and/or oil return line 4 heats the combustion in oil inlet pipe 3 and/or oil return line 4
Oil analyses wax phenomenon to eliminate, dredges oil inlet pipe 3 and/or oil return line 4, realizes to oil inlet pipe 3 and/or oil return line 4
Preheating, fuel tank 1 normally can provide fuel oil, and remaining combustion for fuel oil diesel engine after guaranteeing diesel engine work
Oil can return to fuel tank 1, fundamentally solve the problems, such as extremely cold area diesel engine difficulty in starting.
The fuel heater 5 is connect with the fuel tank 1 by the first oil circuit 16, is equipped in the fuel heater 5
Heat channel, the heat that the fuel heater 5 can extract the fuel oil in the fuel tank 1 and be formed by lighting the fuel oil
Amount heating passes through the coolant liquid in the heating channel.Pump the fuel oil in fuel tank 1 by fuel heater 5, and by its from
The fuel oil pumped in fuel tank 1 is lighted, and the heat for formation of burning can be used for heating the coolant liquid flowed through in heating channel, then adopt
With the fuel oil in the coolant liquid heated fuel oil case 1 after heating, pre- heat effect is played.
After stopping due to the work of fuel heater 5, there was only minute quantity on the pipeline of connection fuel heater 5 and fuel tank 1
Fuel oil exist, even if there is analysis wax phenomenon, fuel heater 5 will not be influenced and pump fuel oil in fuel tank 1, and fuel oil
Heater 5 is not high to the quality requirement of fuel oil, will not influence fuel oil the fuel oil block for analysing wax enters in fuel heater 5 and add
Hot device 5 works, therefore may not necessarily preheat to the first oil circuit 16.
Heating tube 6 is equipped in the fuel tank 1, the one end in the heating channel is connected to one end of the heating tube 6, institute
The other end for stating heating channel is connected to the coolant liquid liquid outlet of the diesel engine assembly 2, the other end of the heating tube 6
It is connected to the coolant liquid inlet of the diesel engine assembly 2.Specifically, connecting 6 other end of heating tube and the bavin
The pipeline of the coolant liquid inlet of oil turbine assembly 2 is the 4th cooling line 17.Coolant liquid after heating flows through heating tube 6
Afterwards, heat exchange can occur with heating tube 6, and heating tube 6 is in fuel tank 1, heating tube 6 again can be with the fuel oil in fuel tank 1
Heat exchange is carried out, is played the role of to the fuel-firing preheating in fuel tank 1, with the adding after heat exchange of the fuel oil in fuel tank 1
Coolant liquid in heat pipe 6 will flow into the coolant liquid inlet by the 4th cooling line 17.Preferably, above-mentioned heating tube 6
For copper pipe, heat transference efficiency is higher.
The side wall of the oil inlet pipe 3 and/or oil return line 4 is equipped with interlayer, and first electric heater is set to described
In interlayer.First electric heater is resistance heater or electrothermal film heater or thick film heater.Preferably, this implementation
In example, first electric heater is resistance heater, and is equipped with the first electric heating on oil inlet pipe 3 and oil return line 4
Device.Before diesel engine starting, the work of the first electric heater can be such that oil inlet pipe 3 and oil return line 4 is heated, so that
The wax being precipitated in oil inlet pipe 3 and oil return line 4 is melted, and is avoided due to analysing wax phenomenon blocking oil inlet pipe 3 or oil return line 4
Diesel engine is influenced to work normally.
Further, the present embodiment is equipped with filter 7, institute also on the oil inlet pipe 3 and/or the oil return line 4
It states and is equipped with the second electric heater in the transparent cup of filter 7.Preferably, filter is equipped on oil inlet pipe 3 and oil return line 4
7, and the second electric heater uses electrically heated rod.Since filter 7 is mainly used for the impurity in filter fuel, temperature compared with
When low, filter 7 is easier to block because analysing wax problem, and heating the wax being precipitated in filter 7 by the second electric heater makes it
It is melted, and then filter 7 is avoided to be blocked.
In the present embodiment, the pipeline for connecting the coolant liquid liquid outlet and the heating channel liquid feeding end is the first cooling tube
Road 11, the pipeline for connecting the heating channel and 6 outlet end of the heating tube is the second cooling line 12, first cooling tube
Road 11 is connected to the second cooling line 12 by third cooling line 13, and the third cooling line 13 is equipped with check valve 14,
The coolant liquid of the coolant liquid liquid outlet outflow can flow to the heating tube 6 or be passed through optionally through the check valve 14
The heating channel flows to the heating tube 6.The one end and institute of first cooling line 11 close to the coolant liquid liquid outlet
The second cooling line 12 is stated to be connected to close to the one end in the heating channel by the third cooling line 13.
It can be added after the coolant pump in diesel engine cooling system is got in the heating channel in fuel heater 5
Heat, the coolant liquid after heating can be flowed into heating tube 6 by the second cooling line 12, at this time the pressure in the first cooling line 11
For negative pressure, and less than the pressure in the second cooling line 12, so that third cooling line 13 connects 12 one end of the second cooling line
Pressure be greater than the pressure that third cooling line 13 connects 11 one end of the first cooling line so that check valve 14 is closed, guarantee
The coolant liquid of coolant liquid liquid outlet outflow at this time will not flow directly into the second cooling line 12 by check valve 14.
And when fuel heater 5 is idle, the coolant liquid of coolant liquid liquid outlet outflow will be directly by unidirectional
Valve 14 flows into the second cooling line 12, coolant liquid can be made to heat up when coolant liquid exchanges heat in diesel engine assembly 2 at this time, heats up
Coolant liquid afterwards flows into the second cooling line 12 by check valve 14, then carries out by the fuel oil in heating tube 6 and fuel tank 1
Heat exchange, and returned in diesel engine assembly 2 by the 4th cooling line 17, and then have to the lasting guarantor in fuel tank 1
The effect of temperature prevents in the diesel engine course of work intermediate fuel oil case 1 in extremely cold area temperature too low and influences diesel oil hair
Motivation work；The temperature of coolant liquid is reduced by the second cooling line 12, fuel tank 1 simultaneously, and again by the coolant liquid of low temperature
It is passed through in diesel engine assembly 2, exchanges heat with diesel engine assembly 2, cooling is played to diesel engine assembly 2 and is made
With.
Preheated that detailed process is as follows using above-mentioned diesel engine oil supply system preheating device:
Before diesel engine starting, first controls fuel heater 5 and work, pumped in fuel tank 1 by fuel heater 5
Fuel oil and lighted；Simultaneously by the cooling in the coolant liquid in diesel engine cooling system, that is, diesel engine assembly 2
Liquid pump is got in the heating channel of fuel heater 5, cold after being heated by lighting the heat coolant liquid of fuel oil formation
But liquid will be flowed into heating tube 6 by the second cooling line 12, play the role of heating heating tube 6, the heating tube 6 after heating
The fuel oil in fuel tank 1 can be preheated under the action of heat transmitting, then be returned in diesel engine；Control is set to simultaneously
The first electric heater work on oil inlet pipe 3 and oil return line 4, control are set to the second electric heater work in filter 7,
To eliminate the analysis wax problem in oil inlet pipe 3, oil return line 4 and filter 7, oil circuit is dredged, is the normal of diesel engine
Work is ready.
And it can be set on oil inlet pipe 3 and oil return line 4 by control after extremely cold area, diesel engine starting
The first electric heater work, control be set to filter 7 in the second electric heater work, continuous heated fuel oil, to avoid combustion
Occur analysing wax problem in oil pipe line, but also can reduce the label of diesel oil, reduces operating cost.
And after diesel engine starting, using diesel engine oil supply system preheating device energy described in the present embodiment
Enough heating realized by the reflux realization of the coolant liquid of diesel engine cooling system to the fuel oil in fuel tank 1, i.e. diesel oil
In-engine coolant liquid outflow flows into heating tube 6 through the first cooling line 11, check valve 14, the second cooling line 12, and
After be back in diesel engine；Coolant liquid is in cyclic process, additionally it is possible to preheat to diesel engine assembly 2.
The present embodiment additionally provides a kind of engineering machinery, including above-mentioned diesel engine oil supply system preheating device.Its
In the second cooling line 12 one end be connected to heating channel, the other end pass through engineering machinery driver's cabin 15 and be connected to heating
Pipe 6.It is equipped with warm-air drier in driver's cabin 15, the cold air in driver's cabin 15 is blown to the be placed in driver's cabin 15 by warm-air drier
Near two cooling lines 12, the coolant liquid in the cold air and the second cooling line 12 in driver's cabin 15 carries out heat exchange, to cold
But liquid is tentatively cooled down, and has the function of improving temperature in driver's cabin 15.
Radiator 18 is additionally provided with outside diesel engine 2, the partial heat that the work of diesel engine 2 generates passes through radiator 18
It radiates, reduces temperature when diesel engine 2 works, and then guarantee that the temperature in diesel engine 2 is not too high, guarantee
Diesel engine 2 works normally.
While being preheated using diesel engine cooling system to diesel engine, additionally it is possible to realize to driver's cabin
Air in 15 exchanges heat, and improves the comfort level in driver's course of work.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of diesel engine oil supply system preheating device, including fuel tank (1), diesel engine assembly (2), it is connected to combustion
The oil inlet pipe (3) and oil return line (4) of fuel tank (1) and diesel engine assembly (2), which is characterized in that further include for adding
Coolant liquid after heating is simultaneously sent into the fuel tank (1) to heat in it by coolant liquid in hot diesel engine cooling system
The fuel heater (5) of fuel oil, and the first electric heating for heating oil inlet pipe (3) and/or oil return line (4) interior fuel oil
Device.
2. diesel engine oil supply system preheating device according to claim 1, which is characterized in that the fuel heater
(5) it is connect with the fuel tank (1) by the first oil circuit (16), heating channel, the combustion is equipped in the fuel heater (5)
Oil heater (5) can extract the fuel oil in the fuel tank (1) and be passed through by lighting the heat that the fuel oil is formed
Coolant liquid in the heating channel.
3. diesel engine oil supply system preheating device according to claim 2, which is characterized in that the fuel tank (1)
Interior to be equipped with heating tube (6), the one end in the heating channel is connected to one end of the heating tube (6), described to heat the another of channel
One end is connected to the coolant liquid liquid outlet of the diesel engine assembly (2), and the other end of the heating tube (6) is connected to described
The coolant liquid inlet of diesel engine assembly (2).
4. diesel engine oil supply system preheating device according to claim 1, which is characterized in that the oil inlet pipe
(3) and/or the oil return line (4) is equipped with filter (7), and the second electric heating is equipped in the transparent cup of the filter (7)
Device.
5. diesel engine oil supply system preheating device according to claim 1, which is characterized in that the oil inlet pipe
(3) and/or the side wall of oil return line (4) is equipped with interlayer, and first electric heater is set in the interlayer.
6. diesel engine oil supply system preheating device according to claim 1, which is characterized in that first electric heating
Device is resistance heater or electrothermal film heater or thick film heater.
7. diesel engine oil supply system preheating device according to claim 3, which is characterized in that connect the coolant liquid
The pipeline of liquid outlet and the heating channel liquid feeding end is the first cooling line (11), connects the heating channel outlet end and institute
The pipeline for stating heating tube (6) is the second cooling line (12), and first cooling line (11) and the second cooling line (12) are logical
Third cooling line (13) connection is crossed, the third cooling line (13) is equipped with check valve (14)；The coolant liquid liquid outlet
The coolant liquid of outflow can flow to the heating tube (6) optionally through the check valve (14) or by the heating channel
Flow to the heating tube (6).
8. diesel engine oil supply system preheating device according to claim 7, which is characterized in that first cooling tube
Road (11) is close to one end of the coolant liquid liquid outlet and second cooling line (12) close to described one end for heating channel
It is connected to by the third cooling line (13).
9. a kind of engineering machinery, which is characterized in that pre- including any diesel engine oil supply system of claim 1 to 8
Thermal.
10. engineering machinery according to claim 9, which is characterized in that be equipped with heating channel, combustion in fuel heater (5)
Heating tube (6) are equipped in fuel tank (1), the outlet end in the heating channel is connected with the second cooling line (12), and described second is cold
But pipeline (12) passes through the driver's cabin (15) of engineering machinery and is connected to heating tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750316.6U CN208310929U (en) | 2018-05-18 | 2018-05-18 | A kind of diesel engine oil supply system preheating device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750316.6U CN208310929U (en) | 2018-05-18 | 2018-05-18 | A kind of diesel engine oil supply system preheating device and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208310929U true CN208310929U (en) | 2019-01-01 |
Family
ID=64711829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820750316.6U Active CN208310929U (en) | 2018-05-18 | 2018-05-18 | A kind of diesel engine oil supply system preheating device and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208310929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550346A (en) * | 2020-04-27 | 2020-08-18 | 河南电力博大科技有限公司 | Cold start comprehensive preheating system for tension machine |
| CN112303064A (en) * | 2020-10-30 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | Diesel engine and hydraulic system composite temperature control system and method |
-
2018
- 2018-05-18 CN CN201820750316.6U patent/CN208310929U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550346A (en) * | 2020-04-27 | 2020-08-18 | 河南电力博大科技有限公司 | Cold start comprehensive preheating system for tension machine |
| CN112303064A (en) * | 2020-10-30 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | Diesel engine and hydraulic system composite temperature control system and method |
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