CN104819079A - Diesel low-temperature cold starting fuel supply system - Google Patents

Diesel low-temperature cold starting fuel supply system Download PDF

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Publication number
CN104819079A
CN104819079A CN201510231448.9A CN201510231448A CN104819079A CN 104819079 A CN104819079 A CN 104819079A CN 201510231448 A CN201510231448 A CN 201510231448A CN 104819079 A CN104819079 A CN 104819079A
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China
Prior art keywords
fuel
temperature
oil
fuel tank
diesel engine
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Pending
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CN201510231448.9A
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Chinese (zh)
Inventor
张琦
陈建军
刘训中
杜丹
神文庭
罗石忠
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Jiangsu Liugong Machinery Co Ltd
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Jiangsu Liugong Machinery Co Ltd
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Priority to CN201510231448.9A priority Critical patent/CN104819079A/en
Publication of CN104819079A publication Critical patent/CN104819079A/en
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Abstract

A diesel low-temperature cold starting fuel supply system Diesel low-temperature cold starting oil supply system comprises a fuel tank assembly, a fuel pump and a diesel assembly. The fuel pump draws fuel from the fuel tank assembly to supply the fuel for the diesel assembly. Surplus fuel in the diesel assembly flows back to the fuel tank assembly through a fuel return pipe. The fuel tank assembly comprises a normal-temperature fuel tank and a low-temperature fuel tank. A fuel supply reversing valve is arranged between the fuel pump and the fuel tank assembly. Two fuel inlets of the fuel supply reversing valve are communicated with the normal-temperature fuel tank and the low-temperature fuel tank respectively. A fuel return reversing valve is arranged in the fuel return pipe of the diesel assembly, and a fuel outlet of the fuel return reversing valve is communicated with the normal-temperature fuel tank and the low-temperature fuel tank respectively. The fuel supply reversing valve and the fuel return reversing valve are switched synchronously. The system has the advantages that simple system elements are used, so that the starting problem of the diesel in the low-temperature environment is solved, the user use cost is reduced on the premise that the effect on the whole diesel cost is not large, and the adaptability of the whole diesel to different work conditions is improved.

Description

Diesel engine low-temperature cool starting oil supply system
Technical field
The present invention relates to a kind of fuel system for diesel engine of engineering machinery, particularly low-temperature cool starting oil supply system, belongs to technical field of engineering machinery.
Background technique
Along with the propelling of development of the West Regions national strategy, increasing construction project proposes higher requirement to engineering machinery performance at low ambient temperatures.Diesel engine utilizes airtight space compression air to produce high heat, and the diesel oil after-combustion expansion spraying into atomization promotes piston movement, then exports mechanical work by linkage mechanism, thus starts.The fuel oil used under diesel engine normal temperature is 0# diesel oil, and when ambient temperature is lower than 4 DEG C, diesel oil meeting wax deposition, impact starts, and particularly during cold start-up, diesel engine starting is more difficult.Domestic for engineering machinery diesel engine low-temperature cool starting problem at present, or solved by inlet air heating, usually there are air-inlet grille heating and flame to heat two kinds, improve intake temperature; By the first heating water of heating equipment, water is heated fuel oil again, and fuel oil restarts diesel engine after melting; Directly use the low trade mark diesel oil being applicable to ambient temperature, use-35# diesel oil when as subzero in ambient temperature twenties degree, but install fuel heater additional, complete machine cost can be increased, reduce main engine factory's profit, and utilization ratio is not high, causes waste, and the problem of diesel oil wax deposition in fuel pipe cannot be solved, and according to China Diesel price, the trade mark is lower, price is more expensive, select low trade mark diesel oil significantly to add the user cost of user, decrease the real revenue of user.For solving the problem, therefore a kind of Novel diesel engine oil supply system need be developed.
Diesel engine low-temperature cool starting oil supply system of the present invention well solves the problems referred to above, while the cold start-up of solution diesel engine low temperature environment, at utmost saves the user cost of user.
Summary of the invention
Goal of the invention: the present invention in order to overcome above-mentioned prior art exist shortcoming propose, its technical problem solved is to provide and a set ofly can ensures that diesel engine normally starts in low-temperature cool starting situation, realizes economic benefits maximized diesel engine low-temperature cool starting oil supply system simultaneously.
Technological scheme: a kind of diesel engine low-temperature cool starting oil supply system, comprises fuel tank assembly, oil pump and diesel engine assembly, draw fuel is to diesel engine assembly fuel feeding from fuel tank assembly for oil pump, and in diesel engine assembly, excess fuel flows back to fuel tank assembly by return line; Described fuel tank assembly comprises normal temperature fuel oil box and low temperature fuel oil box, is provided with fuel feeding selector valve between described oil pump and fuel tank assembly, and two filler openings of described fuel feeding selector valve are communicated with low temperature fuel oil box with normal temperature fuel oil box respectively; Be provided with oil return selector valve in the return line of described diesel engine assembly, the oil outlet of described oil return selector valve is communicated with low temperature fuel oil box with normal temperature fuel oil box respectively; Described fuel feeding selector valve and oil return selector valve synchronism switching.When engineering mechanical device is in cold area initial start, fuel feeding selector valve and oil return selector valve are communicated with low temperature fuel oil box simultaneously, when after equipment work a period of time because thermal radiation in machine makes the fuel oil temperature in normal temperature fuel oil box raise.When ambient temperature is higher than 4 DEG C, when fuel oil can normally use, fuel feeding selector valve and oil return selector valve switch to normal temperature fuel oil box.By the conventional fuel feed that the price in normal temperature fuel oil box is relatively cheap when equipment normally works, while solving the cold start-up of diesel engine low temperature environment, at utmost save the user cost of user.
Preference, in order to shorten the time of fuel heating in normal temperature fuel oil box, is equipped with heating pipe line bottom described normal temperature fuel oil box.The cooling water of thermal source in described heating pipe line from diesel engines or the cooling water of radiation system, also can from the fluid of hydraulic system of working.
Preference, in order to prevent the fuel oil temperature in normal temperature fuel oil box too high, the end of described heating pipe line is provided with switch valve, is provided with fuel tank temperature transducer in described normal temperature fuel oil box.When the fuel oil in normal temperature fuel oil box reaches normal working temperature, fuel tank temperature transducer is reported to the police, and operator's closing switch valve, heat medium no longer enters heating pipe line.When needing fuel Heating in normal temperature fuel oil box when secondary device starts instantly, need again to open switch valve.
Preference, in order to improve automaticity of the present invention, described switch valve is solenoid valve, the break-make of described fuel tank temperature transducer control switch valve.When fuel tank temperature transducer reaches setting temperature, fuel tank temperature transducer exports control signal closing switch valve to solenoid valve, with should fuel oil temperature in normal temperature fuel oil box lower than set temperature value time, switch valve is opened.
Preference, in order to improve automaticity of the present invention further, described oil supply system also comprises environment temperature sensor, and described environment temperature sensor is connected with fuel feeding selector valve and oil return selector valve respectively.When ambient temperature is lower than setting value, fuel feeding selector valve and oil return selector valve switch to low temperature fuel oil box, by the low temperature fuel oil in low temperature fuel oil box to Fuel Injection Mechanism of Diesel Engine, ensure that diesel engine can start in low temperature environment; When ambient temperature is higher than setting value, fuel feeding selector valve and oil return selector valve switch to normal temperature fuel oil box, by the relatively cheap fuel oil of price to Fuel Injection Mechanism of Diesel Engine, reduce the user cost of equipment.
Preference, in order to improve automaticity of the present invention and ensure the normal startup of equipment, described oil supply system also comprises environment temperature sensor, and described environment temperature sensor is connected with fuel feeding selector valve and oil return selector valve after connecting with fuel tank temperature transducer respectively.The thermal radiation temperature being subject to diesel engine when environment temperature sensor raises, but the fuel oil temperature in normal temperature fuel oil box is not increased to suitable temperature, now be not suitable for switching to normal temperature fuel oil box, only have when the normal temperature fuel oil temperature in ambient temperature and normal temperature fuel oil box higher than its operating temperature time, fuel feeding selector valve and oil return selector valve switch to normal temperature fuel oil box.
Beneficial effect: the present invention adopts better simply system element, solves diesel engine starting problem at low ambient temperatures, under the prerequisite little to complete machine cost impact, reduces the user cost of user, improves complete machine to the adaptive capacity of different operating mode.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the electrical schematic of embodiments of the invention three;
Fig. 4 is the electrical schematic of embodiments of the invention four;
Fig. 5 is the electrical schematic of embodiments of the invention five;
Fig. 6 is the electrical schematic of embodiments of the invention six.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment one
As shown in Figure 1, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.When engineering mechanical device is in cold area initial start, fuel feeding selector valve 4 and oil return selector valve 5 are communicated with low temperature fuel oil box 12 simultaneously, when after equipment work a period of time because thermal radiation in machine makes the fuel oil temperature in normal temperature fuel oil box 11 raise.When ambient temperature is higher than 4 DEG C, when fuel oil can normally use, fuel feeding selector valve 4 and oil return selector valve 5 switch to normal temperature fuel oil box 11.By the conventional fuel feed that the price in normal temperature fuel oil box 11 is relatively cheap when equipment normally works, while solving the cold start-up of diesel engine 3 low temperature environment, at utmost save the user cost of user.
Embodiment two
As illustrated in fig. 1 and 2, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.In order to shorten the time of fuel heating in normal temperature fuel oil box 11, bottom described normal temperature fuel oil box 11, be equipped with heating pipe line 6.The cooling water of thermal source from diesel engines in described heating pipe line 6 or the cooling water of radiation system, also can from the fluid of hydraulic system of working.
Embodiment three
As shown in Fig. 1 and 3, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.In order to shorten the time of fuel heating in normal temperature fuel oil box 11, bottom described normal temperature fuel oil box 11, be equipped with heating pipe line 6.In order to prevent the fuel oil temperature in normal temperature fuel oil box 11 too high, the end of described heating pipe line 6 is provided with switch valve 7, is provided with fuel tank temperature transducer 8 in described normal temperature fuel oil box 11.When the fuel oil in normal temperature fuel oil box 11 reaches normal working temperature, fuel tank temperature transducer 8 is reported to the police, and operator's closing switch valve, heat medium no longer enters heating pipe line 6.When needing fuel Heating in normal temperature fuel oil box 11 when secondary device starts instantly, need again to open switch valve 7.
Embodiment four
As shown in figs. 1 and 4, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.In order to shorten the time of fuel heating in normal temperature fuel oil box 11, bottom described normal temperature fuel oil box 11, be equipped with heating pipe line 6.In order to prevent the fuel oil temperature in normal temperature fuel oil box 11 too high, the end of described heating pipe line 6 is provided with switch valve 7, is provided with fuel tank temperature transducer 8 in described normal temperature fuel oil box 11.When the fuel oil in normal temperature fuel oil box 11 reaches normal working temperature, fuel tank temperature transducer 8 is reported to the police, and operator's closing switch valve, heat medium no longer enters heating pipe line 6.When needing fuel Heating in normal temperature fuel oil box 11 when secondary device starts instantly, need again to open switch valve 7.In order to improve automaticity of the present invention, described switch valve 7 is solenoid valve, the break-make of described fuel tank temperature transducer 8 control switch valve 7.When fuel tank temperature transducer 8 reaches setting temperature, fuel tank temperature transducer 8 exports control signal closing switch valve 7 to solenoid valve, with should fuel oil temperature in normal temperature fuel oil box 11 lower than set temperature value time, switch valve 7 is opened.
Embodiment five
As described in figures 1 and 5, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.When engineering mechanical device is in cold area initial start, fuel feeding selector valve 4 and oil return selector valve 5 are communicated with low temperature fuel oil box 12 simultaneously, when after equipment work a period of time because thermal radiation in machine makes the fuel oil temperature in normal temperature fuel oil box 11 raise.When ambient temperature is higher than 4 DEG C, when fuel oil can normally use, fuel feeding selector valve 4 and oil return selector valve 5 switch to normal temperature fuel oil box 11.By the conventional fuel feed that the price in normal temperature fuel oil box 11 is relatively cheap when equipment normally works, while solving the cold start-up of diesel engine 3 low temperature environment, at utmost save the user cost of user.In order to improve automaticity of the present invention further, described oil supply system also comprises environment temperature sensor 9, and described environment temperature sensor 9 is connected with fuel feeding selector valve 4 and oil return selector valve 5 respectively.When ambient temperature is lower than setting value, fuel feeding selector valve 4 and oil return selector valve 5 switch to low temperature fuel oil box 11, by the low temperature fuel oil in low temperature fuel oil box 11 to diesel engine 3 fuel feeding, ensure that diesel engine 3 can start in low temperature environment; When ambient temperature is higher than setting value, fuel feeding selector valve 4 and oil return selector valve 5 switch to normal temperature fuel oil box 11, by the relatively cheap fuel oil of price to Fuel Injection Mechanism of Diesel Engine, reduce the user cost of equipment.
Embodiment six
As shown in figs. 1 and 6, a kind of diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly 1, oil pump 2 and diesel engine assembly 3, draw fuel is to diesel engine assembly 3 fuel feeding from fuel tank assembly 1 for oil pump 2, and in diesel engine assembly 3, excess fuel flows back to fuel tank assembly 1 by return line; Described fuel tank assembly 1 comprises normal temperature fuel oil box 11 and low temperature fuel oil box 12, is provided with fuel feeding selector valve 4 between described oil pump 2 and fuel tank assembly 1, and two filler openings of described fuel feeding selector valve 4 are communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Be provided with oil return selector valve 5 in the return line of described diesel engine assembly 1, the oil outlet of described oil return selector valve 5 is communicated with low temperature fuel oil box 12 with normal temperature fuel oil box 11 respectively; Described fuel feeding selector valve 4 and oil return selector valve 5 synchronism switching.In order to shorten the time of fuel heating in normal temperature fuel oil box 11, bottom described normal temperature fuel oil box 11, be equipped with heating pipe line 6.In order to prevent the fuel oil temperature in normal temperature fuel oil box 11 too high, the end of described heating pipe line 6 is provided with switch valve 7, is provided with fuel tank temperature transducer 8 in described normal temperature fuel oil box 11.When the fuel oil in normal temperature fuel oil box 11 reaches normal working temperature, fuel tank temperature transducer 8 is reported to the police, and operator's closing switch valve, heat medium no longer enters heating pipe line 6.When needing fuel Heating in normal temperature fuel oil box 11 when secondary device starts instantly, need again to open switch valve 7.
In order to improve automaticity of the present invention and ensure the normal startup of equipment, described oil supply system also comprises environment temperature sensor 9, and described environment temperature sensor 9 is connected with fuel feeding selector valve 4 and oil return selector valve 5 after connecting with fuel tank temperature transducer 8 respectively.The thermal radiation temperature being subject to diesel engine 3 when environment temperature sensor 9 raises, but the fuel oil temperature in normal temperature fuel oil box 11 is not increased to suitable temperature, now be not suitable for switching to normal temperature fuel oil box 11, only have when the normal temperature fuel oil temperature in ambient temperature and normal temperature fuel oil box 11 higher than its operating temperature time, fuel feeding selector valve 4 and oil return selector valve 5 switch to normal temperature fuel oil box.
In addition to the implementation, the present invention can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.

Claims (6)

1. a diesel engine low-temperature cool starting oil supply system, comprise fuel tank assembly (1), oil pump (2) and diesel engine assembly (3), draw fuel is to diesel engine assembly (3) fuel feeding from fuel tank assembly (1) for oil pump (2), and in diesel engine assembly (3), excess fuel flows back to fuel tank assembly (1) by return line; It is characterized in that: described fuel tank assembly (1) comprises normal temperature fuel oil box (11) and low temperature fuel oil box (12), be provided with fuel feeding selector valve (4) between described oil pump (2) and fuel tank assembly (1), two filler openings of described fuel feeding selector valve (4) are communicated with low temperature fuel oil box (12) with normal temperature fuel oil box (11) respectively; Be provided with oil return selector valve (5) in the return line of described diesel engine assembly (1), the oil outlet of described oil return selector valve (5) is communicated with low temperature fuel oil box (12) with normal temperature fuel oil box (11) respectively.
2. diesel engine low-temperature cool starting oil supply system according to claim 1, is characterized in that: described normal temperature fuel oil box (11) bottom is equipped with heating pipe line (6).
3. diesel engine low-temperature cool starting oil supply system according to claim 2, is characterized in that: the end of described heating pipe line (6) is provided with switch valve (7), is provided with fuel tank temperature transducer (8) in described normal temperature fuel oil box (11).
4. diesel engine low-temperature cool starting oil supply system according to claim 3, is characterized in that: described switch valve (7) is solenoid valve, the break-make of described fuel tank temperature transducer (8) control switch valve (7).
5. diesel engine low-temperature cool starting oil supply system according to claim 1, it is characterized in that: described oil supply system also comprises environment temperature sensor (9), described environment temperature sensor (9) is connected with fuel feeding selector valve (4) and oil return selector valve (5) respectively.
6. diesel engine low-temperature cool starting oil supply system according to claim 3, it is characterized in that: described oil supply system also comprises environment temperature sensor (9), described environment temperature sensor (9) is connected with fuel feeding selector valve (4) and oil return selector valve (5) after connecting with fuel tank temperature transducer (8) respectively.
CN201510231448.9A 2015-05-08 2015-05-08 Diesel low-temperature cold starting fuel supply system Pending CN104819079A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438124A (en) * 2016-09-09 2017-02-22 广西柳工机械股份有限公司 Self-heating diesel engine fuel oil supply system and oil supply method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215029A (en) * 1992-02-04 1993-08-24 Toyota Motor Corp Fuel supply device for diesel engine
DE19963229A1 (en) * 1999-12-27 2001-06-28 Mahle Filtersysteme Gmbh Fuel supply device for internal combustion engine of vehicle, with through-flow heat exchanger to heat fuel going to main fuel filter
CN2602179Y (en) * 2002-12-02 2004-02-04 翟宝明 Fuel feeding system for diesel engine
CN2866877Y (en) * 2006-01-06 2007-02-07 苏新 Fuel supply device of diesel motor capable of using low-grade diesel oil in winter
CN103061926B (en) * 2013-02-07 2015-03-11 辽宁工业大学 System for preheating fuel oil of automotive diesel engine in winter and control method of system
CN204646489U (en) * 2015-05-08 2015-09-16 江苏柳工机械有限公司 Diesel engine low-temperature cool starting oil supply system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215029A (en) * 1992-02-04 1993-08-24 Toyota Motor Corp Fuel supply device for diesel engine
DE19963229A1 (en) * 1999-12-27 2001-06-28 Mahle Filtersysteme Gmbh Fuel supply device for internal combustion engine of vehicle, with through-flow heat exchanger to heat fuel going to main fuel filter
CN2602179Y (en) * 2002-12-02 2004-02-04 翟宝明 Fuel feeding system for diesel engine
CN2866877Y (en) * 2006-01-06 2007-02-07 苏新 Fuel supply device of diesel motor capable of using low-grade diesel oil in winter
CN103061926B (en) * 2013-02-07 2015-03-11 辽宁工业大学 System for preheating fuel oil of automotive diesel engine in winter and control method of system
CN204646489U (en) * 2015-05-08 2015-09-16 江苏柳工机械有限公司 Diesel engine low-temperature cool starting oil supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438124A (en) * 2016-09-09 2017-02-22 广西柳工机械股份有限公司 Self-heating diesel engine fuel oil supply system and oil supply method

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