CN102996292B - A kind of electric heater for diesel oil of diesel engine - Google Patents
A kind of electric heater for diesel oil of diesel engine Download PDFInfo
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- CN102996292B CN102996292B CN201210577509.3A CN201210577509A CN102996292B CN 102996292 B CN102996292 B CN 102996292B CN 201210577509 A CN201210577509 A CN 201210577509A CN 102996292 B CN102996292 B CN 102996292B
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- oil pipe
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- 239000002283 diesel fuel Substances 0.000 title claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 100
- 238000002955 isolation Methods 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 8
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 230000000694 effects Effects 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 6
- 239000001993 wax Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
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- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000168254 Siro Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 239000007921 spray Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of electric heater for diesel oil of diesel engine, for the heat treating device technical field of combustion air, fuel or fuel-air mixture.Comprise heating unit, oil pipe and connector assembly, described heating unit is connected to one end of described oil pipe, and connector assembly is fixed on the other end of described oil pipe, and the pole piece that powers on heating unit is electrically connected with connector assembly by being connected wire with bottom electrode sheet.Described heater has the advantages that volume is little, structure is simple and easy for installation.
Description
Technical field
The present invention relates to the heat treating device technical field for combustion air, fuel or fuel-air mixture, particularly relate to a kind of electric heater for diesel oil of diesel engine.
Background technique
Diesel engine has the high remarkable advantage of the thermal efficiency, and along with the raising of reinforcing degree, the weight of diesel engine specific power also significantly reduces, and its application area is more and more wider.In order to energy-conservation, each state all improves combustion process in emphasis, and research uses low-quality fuel oil and non-petroleum goods fuel.In addition, reducing frictional loss, extensively employing exhaust gas turbocharge and improve supercharging level, lightweight further, speed up, low oil consumption, low noise and low stain, is all the important development direction of diesel engine.The diesel engine thermal efficiency and better economy, it adopts compressed-air actuated way to improve air temperature, makes air temperature exceed the spontaneous combustion burning-point of diesel oil, at this moment diesel oil is sprayed into again, ignition while atomized diesel fuel and air mix, therefore, diesel engine is without the need to ignition system.Through continual development, modern diesel engine has become a kind of and has discharged clean, to save energy power engine.
At normal temperatures, diesel oil is transparency liquid, and its viscosity is less, good fluidity, and spray effect is good, sufficient combustion, thus discharge low, oil consumption is few.After ambient temperature reduces, diesel oil becomes muddy, and viscosity increases, mobility, atomizing effect variation, even analyses wax and the blocking filter screen that freezes, pipeline etc., cause in difficulty in starting, driving faults such as stopping working suddenly in oil and water seperator, filter cleaner.Experiment proves, when ambient temperature is lower than 4 DEG C, suitably heats diesel oil, not only can improve its mobility, optimize atomization quality, easily start, more can promote the contamination precipitation in diesel oil, filtering, thus make the diesel oil of infeed diesel fuel engine injection system purer, alleviate the wearing and tearing of diesel fuel engine injection system precision element, increasing service life of engine, promote the Thorough combustion of diesel oil, reduce oil consumption, energy-saving and emission-reduction.
Application number is that 200620135773.1 utility model patents disclose a kind of diesel car fuel heater being applicable to diesel vehicle, vehicle fuel large tank installs additional a heater, its turnover water pipe is communicated with the turnover water pipe driving room heater respectively, the fuel oil of heating fuel tank, and set up the little fuel tank of a dress diesel oil in winter, during for starting cold.Application number be 200620153592.1 utility model patent disclose a kind of auto heater, be made up of body, enclosing cover, heating pipe, water intake, water outlet, 3 ~ 7 heating pipes are provided with in body, body is provided with water intake, water outlet, in body side, enclosing cover is housed, covers outside and be shaped with hole.During use, water intake is connected with body discharging valve, and water outlet is connected with warm braw backwater.Above structure must have ABAP Adapter to use, and by circulating water heating, adds hot transmission comparatively slow, help the time of opening longer, and required installing space is comparatively large, needs specialty to install simultaneously, improves cost.This mode of heating can reduce the circulating water temperature of motor in addition, increases the wearing and tearing of cylinder liner, reduces the working life of motor.
Application number is that 03211011.1 utility model patent discloses a kind of diesel heater for diesel vehicle, and disclose following technological scheme: be provided with water supply connector and backwater joint in engine cooling and circulating system, heater is respectively arranged with in fuel tank in oil supply system and diesel-oil filter, water supply connector wherein in motor is connected with heater for diesel filter water intake by pipeline, heater for diesel filter water outlet is connected with fuel tank heater water intake by pipeline, and fuel tank heater water outlet is connected with the backwater joint of motor by pipeline.The present invention utilizes the heat energy produced during engine operation, with the cooling liquid with temperature for medium, remove indirect heating diesel oil, and have employed twice mode of heating in fuel tank and diesel-oil filter, make the diesel oil entered in oil pump remain on 40 ~ 50 DEG C, solve the diesel oil wax deposition problem occurred when winter, diesel-oil vehicle travelled.China Patent No. CN02244333.9 utility model patent discloses a kind of low temp. wax.The heat energy that the present invention makes full use of internal-combustion engine radiation system removes Heating Diesel Fuel, prevent Yin Wendu from reducing and diesel oil solidified and separates out paraffin, break away from locomotive and affect passive selection to diesel oil by working environment, solve because solidifying of wax clogged oil line and diesel oil analysed by diesel oil, cause diesel locomotive non-serviceable phenomenon in winter.Above two kinds of residual-heat utilization technology all belonging to diesel car engine, include engine cooling and circulating system and oil supply system, but install complicated, are awkward.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of electric heater for diesel oil of diesel engine, has the advantages that volume is little, structure is simple and easy for installation.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of electric heater for diesel oil of diesel engine, it is characterized in that comprising heating unit, oil pipe and connector assembly, described heating unit is connected to one end of described oil pipe, connector assembly is fixed on the other end of described oil pipe, and power on pole piece and bottom electrode sheet on heating unit are by being connected wire or electrode package is electrically connected with connector assembly.
Preferred: described connector assembly is fixedly connected with described oil pipe by sheathed casing.
Preferred: described heating unit is bar-shaped, comprise the pole piece that powers on, PTC heating element, bottom electrode sheet and shell, described PTC heating element is between upper and lower electrode slices, the outside of upper and lower electrode slices be provided with isolation layer and by shell by upper and lower electrode slices and PTC heating element integrally mounted, one end of upper and lower electrode slices is connected with tenminal block by connecting wire.
Preferred: described heating unit is " U " type, comprise the pole piece that powers on, PTC heating element, bottom electrode sheet and shell, described PTC heating element is between upper and lower electrode slices, the outside of upper and lower electrode slices be provided with isolation layer and by shell by upper and lower electrode slices and PTC heating element integrally mounted, one end of upper and lower electrode slices is by connecting wire or electrode package is connected with tenminal block.
Preferred: described heating unit is fixed on the outside of described oil pipe one end by jointing and butt joint, and described oil pipe is provided with oil inlet hole near one end of heating unit, and the other end of oil pipe is provided with oil outlet.
Preferred: described heating unit is bar-shaped, comprise the pole piece that powers on, PTC heating element, bottom electrode sheet and latch plate, described PTC heating element is between upper and lower electrode slices, described latch plate is fixed on and powers on pole piece, the described pole piece that powers on, PTC heating element and bottom electrode sheet are positioned at described oil pipe and press on the inwall of oil pipe by latch plate, one end of described upper and lower electrode slices is electrically connected with connector assembly by tenminal block, and described oil pipe is provided with oil outlet away from one end of heating unit.
Preferred: described heating unit is heating pipe.
Preferred: described heater also comprises temperature controller, described temperature controller is electrically connected with described connector assembly.
Preferred: described shell and power between pole piece and bottom electrode sheet and be provided with isolation layer.
The beneficial effect adopting technique scheme to produce is: overall heater is bar-shaped, and volume is little, can be arranged in filter cylinder and oil inlet and outlet, simple installation, not take too large space; Heater structure is simple, and PTC heater band adopts mechanical installation mode, installs firmly, safe and reliable; Heater arranges airtight heating chamber, and diesel oil flows into from oil inlet hole, in heating chamber, complete heating, then flows out from oil outlet, and heat losses is few, heating-up temperature uniformity, and heating effect is good; Heater can support the use with filter cleaner and heat the diesel oil in oil supply system, applied widely; Heating element adopts PTC thermistor, PTC thermistor is the semiconductor resistor that a kind of typical case has temperature sensitivity, when exceeding uniform temperature, resistance can be that step type increases along with the rising of temperature, and PTC heating element has thermostatic characteristics, can not unrestrictedly heat up, even if run into temperature control to lose efficacy, forget and close the fortuitous event such as power supply, also can ensure by the diesel oil that heats in safe temperature range, guarantee safe and reliable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the decomposed structural representation of embodiment one;
Fig. 3 is the structural representation of heating unit in embodiment one;
Fig. 4 is the decomposition texture schematic diagram of heating unit in embodiment one;
Fig. 5 is the structural representation of embodiment two;
Fig. 6 is the structural representation of embodiment three;
Fig. 7 is that in embodiment three, heating unit is not placed into the structural representation before oil pipe;
Fig. 8 is the decomposition texture schematic diagram of heating unit in embodiment three;
Wherein: 1, bottom electrode sheet 2, PTC heating element 3, the pole piece 4 that powers on, shell 5, connection wire 6, terminal 7, heating unit 8, jointing 9, butt joint 10, contact pin 11, oil pipe 12, oil inlet hole 13, oil outlet 14, latch plate 15, sheathed casing 16, connector assembly 17, screw thread.
Embodiment
Embodiment one: as Figure 1-4, a kind of electric heater for diesel oil of diesel engine, comprises heating unit 7, oil pipe 11 and connector assembly 16.Described heating unit 7 is fixed on the outside of described oil pipe 11 one end by jointing 8 and butt joint 9, and described connector assembly 16 is connected to the other end of described oil pipe 11 by sheathed casing 15.Described heating unit 7 is bar-shaped, comprises the pole piece 3 that powers on, PTC heating element 2, bottom electrode sheet 1 and shell 4.Described PTC heating element 2 is between upper and lower electrode slices, the outside of upper and lower electrode slices be provided with isolation layer and by shell 4 by upper and lower electrode slices and PTC heating element 2 integrally mounted, one end of upper and lower electrode slices is connected with tenminal block by connecting wire 5, and power on pole piece 3 and bottom electrode sheet 1 on heating unit 7 are by being connected wire 5 or electrode package is electrically connected with connector assembly 16.Described oil pipe 11 is provided with oil inlet hole 12 near one end of heating unit 7, and the other end is provided with oil outlet 13.
Upper and lower electrode slices all adopts copper product, and is connected with terminal 6 by connecting wire 5, and upper and lower electrode slices is used for providing electric power support for PTC heating element, can determine its corresponding dimensional structure, with satisfied installation needs according to the shape of PTC heating element.Isolation layer is used for insulating between upper and lower electrode slices and shell, and guarantee that product performance are good, can adopt polyimide film, it has good insulating properties, thermal conductivity, and high strength guarantees that heater can not short circuit.Isolation layer is provided with, to increase insulation effect between preferred shell and upper and lower electrode slices.
When assembling described heating unit, first upper and lower electrode slices, PTC heating element, isolation layer being installed according to erection sequence arrangement and wrapping up with shell.Connect by the wiredrawn edge side pressure of one end and upper and lower electrode slices of connecting wire, the other end and the terminal compression joint that connect wire are made into heating unit, form the heating source of heater again.Its beneficial effect is: upper and lower electrode slices is used for providing electric power support for PTC heater band, its corresponding dimensional structure can be determined according to the shape of PTC heating element, with satisfied installation needs, and power-on and power-off pole piece is as the critical component introducing power supply for heater, by docking with contact pin the connector assembly being connected power supply.Can heat be produced after the energising of one or more PTC heating element, and by upper and lower electrode slices by heat conduction to adding heating unit shell, the thermal efficiency is high.
Embodiment two: as shown in Figure 5, are with the difference of embodiment one, and described heating unit 7 overall processing is " U " type, and the heating unit heating area of " U " type structure is larger, and heating effect is better, and installs simple, convenient and swift.
Embodiment three: be structure and the mounting point of heating unit with embodiment one difference.As shown in figs 6-8, described heating unit 7 is bar-shaped, comprises the pole piece 3 that powers on, PTC heating element 2, bottom electrode sheet 1 and latch plate 14.Described PTC heating element 2 is between upper and lower electrode slices, described latch plate 14 is fixed on and powers on pole piece 3, described in power on pole piece 3, PTC heating element 2 and bottom electrode sheet 1 be positioned at described oil pipe 11 and pressed to by latch plate 14 on the inwall of oil pipe 11.One end of described upper and lower electrode slices is electrically connected with connector assembly 16 by tenminal block, and described oil pipe 11 is provided with oil outlet 13 away from one end of heating unit, and diesel oil enters from one end of oil pipe, and then oil outlet from it flows out.
Except above three embodiments, described heating unit can use common heating stick, and preferred described heater can also comprise the temperature controller be connected with connector assembly 16, in order to control the heating-up temperature of heating stick.
Latch plate is used for upper and lower electrode slices and PTC heating element to be pressed into one, ensures compact siro spinning technology between each component, improves the safety coefficient of product.Latch plate compression joint area is large, ensures uniform force between each component, and contact is tightr, there will not be part deformation to crimp not tight problem.Sheathed casing, for the protection of heater outside line, ensures the regular supply of power supply.
Described heater has following feature: (1) overall heater is bar-shaped, and volume is little, can be arranged in filter cylinder and oil inlet and outlet, simple installation, not take too large space; (2) heater structure is simple, and PTC heater band adopts mechanical installation mode, installs firmly, safe and reliable; (3) heater arranges airtight heating chamber, and diesel oil flows into from oil inlet hole, in heating chamber, complete heating, then flows out from oil outlet, and heat losses is few, heating-up temperature uniformity, and heating effect is good; (4) heater can support the use with filter cleaner and heat the diesel oil in oil supply system, applied widely; (5) heating element adopts PTC thermistor, PTC thermistor is the semiconductor resistor that a kind of typical case has temperature sensitivity, when exceeding uniform temperature, resistance can be that step type increases along with the rising of temperature, and PTC heating element has thermostatic characteristics, can not unrestrictedly heat up, even if run into temperature control to lose efficacy, forget and close the fortuitous event such as power supply, also can ensure by the diesel oil that heats in safe temperature range, guarantee safe and reliable.
Apply specific case herein to set forth principle of the present invention and mode of execution thereof, the explanation of above embodiment is only used to help to understand method of the present invention and core concept thereof.It should be pointed out that for the person of ordinary skill of the art, can also carry out some improvement and modification under the premise without departing from the principles of the invention to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (7)
1. an electric heater for diesel oil of diesel engine, it is characterized in that comprising heating unit (7), oil pipe (11) and connector assembly (16), described heating unit (7) is connected to one end of described oil pipe (11), connector assembly (16) is fixed on the other end of described oil pipe (11), and the pole piece that powers on (3) on heating unit (7) and bottom electrode sheet (1) are by being connected wire (5) or electrode package is electrically connected with connector assembly (16), described connector assembly (16) is fixedly connected with described oil pipe (11) by sheathed casing (15), described heating unit (7) is for bar-shaped, comprise the pole piece that powers on (3), PTC heating element (2), bottom electrode sheet (1) and latch plate (14), described PTC heating element (2) is positioned at, between bottom electrode sheet, described latch plate (14) is fixed on the pole piece that powers on (3), the described pole piece that powers on (3), PTC heating element (2) and bottom electrode sheet (1) are positioned at described oil pipe (11) and press on the inwall of oil pipe (11) by latch plate (14), on described, one end of bottom electrode sheet is electrically connected with connector assembly (16) by tenminal block, described oil pipe (11) is provided with oil outlet (13) away from one end of heating unit.
2. a kind of electric heater for diesel oil of diesel engine according to claim 1, it is characterized in that described heating unit (7) is for bar-shaped, comprise the pole piece that powers on (3), PTC heating element (2), bottom electrode sheet (1) and shell (4), described PTC heating element (2) is between upper and lower electrode slices, the outside of upper and lower electrode slices be provided with isolation layer and by shell (4) by upper and lower electrode slices and PTC heating element (2) integrally mounted, one end of upper and lower electrode slices is connected with tenminal block by connecting wire.
3. a kind of electric heater for diesel oil of diesel engine according to claim 1, it is characterized in that described heating unit (7) is " U " type, comprise the pole piece that powers on (3), PTC heating element (2), bottom electrode sheet (1) and shell (4), described PTC heating element (2) is between upper and lower electrode slices, the outside of upper and lower electrode slices be provided with isolation layer and by shell (4) by upper and lower electrode slices and PTC heating element (2) integrally mounted, one end of upper and lower electrode slices is by connecting wire or electrode package is connected with tenminal block.
4. a kind of electric heater for diesel oil of diesel engine according to claim 2, it is characterized in that described heating unit (7) is fixed on the outside of described oil pipe (11) one end by jointing (8) and butt joint (9), described oil pipe (11) is provided with oil inlet hole (12) near one end of heating unit (7), and the other end of oil pipe (11) is provided with oil outlet (13).
5. a kind of electric heater for diesel oil of diesel engine according to claim 1, is characterized in that described heating unit is heating pipe.
6. a kind of electric heater for diesel oil of diesel engine according to claim 1, is characterized in that described heater also comprises temperature controller, and described temperature controller is electrically connected with described connector assembly (16).
7. a kind of electric heater for diesel oil of diesel engine according to claim 2, is characterized in that described shell (4) and is provided with isolation layer between the pole piece that powers on (3) and bottom electrode sheet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577509.3A CN102996292B (en) | 2012-12-27 | 2012-12-27 | A kind of electric heater for diesel oil of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577509.3A CN102996292B (en) | 2012-12-27 | 2012-12-27 | A kind of electric heater for diesel oil of diesel engine |
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| Publication Number | Publication Date |
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| CN102996292A CN102996292A (en) | 2013-03-27 |
| CN102996292B true CN102996292B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210577509.3A Active CN102996292B (en) | 2012-12-27 | 2012-12-27 | A kind of electric heater for diesel oil of diesel engine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0068688A2 (en) * | 1981-06-15 | 1983-01-05 | RAYCHEM CORPORATION (a California corporation) | Fuel line heater feedthrough |
| US4684786A (en) * | 1984-08-01 | 1987-08-04 | Navistar International Corporation | Electrically heated fuel pick-up assembly for vehicle fuel tanks |
| CN2164466Y (en) * | 1993-07-23 | 1994-05-11 | 崔彦 | Heater for oil plug |
| CN201003450Y (en) * | 2007-01-15 | 2008-01-09 | 郝金海 | Fuel tank oil suction pipe heating device |
| JP2012229652A (en) * | 2011-04-26 | 2012-11-22 | Denso Corp | Fuel injection system |
| CN202970963U (en) * | 2012-12-27 | 2013-06-05 | 中国电子科技集团公司第十三研究所 | Diesel electric heater of diesel engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008052918A1 (en) * | 2007-12-21 | 2009-06-25 | Mahle International Gmbh | Heating device for fuel |
-
2012
- 2012-12-27 CN CN201210577509.3A patent/CN102996292B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0068688A2 (en) * | 1981-06-15 | 1983-01-05 | RAYCHEM CORPORATION (a California corporation) | Fuel line heater feedthrough |
| US4684786A (en) * | 1984-08-01 | 1987-08-04 | Navistar International Corporation | Electrically heated fuel pick-up assembly for vehicle fuel tanks |
| CN2164466Y (en) * | 1993-07-23 | 1994-05-11 | 崔彦 | Heater for oil plug |
| CN201003450Y (en) * | 2007-01-15 | 2008-01-09 | 郝金海 | Fuel tank oil suction pipe heating device |
| JP2012229652A (en) * | 2011-04-26 | 2012-11-22 | Denso Corp | Fuel injection system |
| CN202970963U (en) * | 2012-12-27 | 2013-06-05 | 中国电子科技集团公司第十三研究所 | Diesel electric heater of diesel engine |
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| CN102996292A (en) | 2013-03-27 |
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