CN111706452A - Cold start system and method for mining dump truck - Google Patents
Cold start system and method for mining dump truck Download PDFInfo
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- CN111706452A CN111706452A CN202010577517.2A CN202010577517A CN111706452A CN 111706452 A CN111706452 A CN 111706452A CN 202010577517 A CN202010577517 A CN 202010577517A CN 111706452 A CN111706452 A CN 111706452A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
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- 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
- F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
- F01M5/021—Conditioning lubricant for aiding engine starting, e.g. heating by heating
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- 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 discloses a cold start system and method for a mining dump truck, and belongs to the technical field of mining machinery. An oil inlet of the heater is connected with an oil suction pipe III, and the oil suction pipe III is connected with a third connector of the tee joint II; an oil return port of the heater is connected with an oil return pipe III, and the oil return pipe III is connected with a third interface of a third oil return pipe III; the water inlet of the heater is connected with the water outlet of the cooling pipeline in the engine cylinder sleeve through a water inlet pipe I, a stop valve I and a water inlet pipe II; the water outlet of the heater is connected with the water inlet of the cooling pipeline in the engine cylinder sleeve through a water return pipe I, a stop valve II and a water return pipe II. According to the invention, the temperature control switch and the indicator lamp which are specially used for controlling the wire harness are added, so that the heating temperature of the cooling liquid can be accurately controlled, the time is saved, the low-temperature starting success rate which is nearly 100% is realized, and the efficiency of the whole machine is highest; the service life of the engine and the mining dump truck is ensured, the attendance rate of the mining dump truck is improved, and the normal production is ensured.
Description
Technical Field
The invention relates to the technical field of mining machinery, in particular to a cold start system and method for an off-highway mining dump truck.
Technical Field
The mining dump truck has wide application range and extremely severe working environment, and is generally used in mines, plateaus and the like. With the overall technology improvement and development progress of the mining dump truck, the mining dump truck continuously challenges various extreme climates including extreme working conditions such as extreme heat, dustiness, high humidity and extreme cold. Therefore, according to engineering requirements, the mining dump truck needs to work in some high-latitude areas, plateau and other cold areas all the year round, the mining dump truck has the power source mostly of a diesel engine, the starting performance of the diesel engine has great influence on the use reliability, convenience, durability, fuel economy and the like of the whole truck, and unreliable starting of the engine is one of unreliable performances of the whole truck. And the starting is not smooth, the labor intensity of operators can be increased invisibly, the attendance rate of the whole vehicle is reduced, and the abrasion of an engine is increased.
The difficulty in starting the diesel engine under the extremely cold working condition has 3 main reasons:
1. under the extremely cold working condition, because the external temperature is extremely low, the viscosity of engine oil of the engine is increased, the fluidity is poor, and even condensation is possible, the rotation resistance moment of a crankshaft of the engine is greatly increased, the starting rotating speed is insufficient, and the starting of the engine is difficult;
2. the ignition mode of the diesel engine is compression ignition, and the air inlet temperature and pressure are too low in a low-temperature environment, so that the diesel atomization effect in a combustion chamber is poor, the compression ratio is reduced, and the engine is more difficult to start;
3. most of the mining dump trucks are high-horsepower diesel engines, which are usually driven by a starting motor to start, and the starting motor has the function of enabling the engine to have a certain starting rotating speed and compressing an oil-gas mixture to start by spontaneous combustion. When the external environment temperature is extremely low, the output capacity of the storage battery is reduced, the viscosity of the electrolyte is increased, the permeation efficiency on a polar plate is reduced, and the internal resistance is increased, so that the capacity and the terminal voltage of the storage battery are reduced, even the storage battery cannot discharge when the temperature is lower, and the starting motor of the engine cannot obtain required input power due to the reduction of the voltage, so that the starting difficulty is easily caused;
at the moment, a set of good cold starting system is provided, which is a necessary premise for ensuring the attendance rate of the mining dump truck in the extremely cold low-temperature zone. Particularly, in some countries and regions (such as russia), the environmental temperature is often below-35 ℃ in winter, which belongs to an extremely cold environment, so that the mining dump truck is required to have good cold start performance to ensure the normal operation of the whole truck under a cold working condition.
At present, two cold starting schemes widely applied to mining dump trucks are available: one is heating by adopting the air inlet of the engine; the other is to adopt a high-power fan to blow hot air to the engine to keep heat. The heating efficiency of two kinds of schemes is all not high, and the second kind of operation is wasted time and energy moreover, influences whole car conveying efficiency.
Disclosure of Invention
The invention aims to provide a cold start system and a cold start method for an off-highway mining dump truck, so that the product is more efficient and durable and can adapt to various extreme working environments.
The technical problems solved by the invention are as follows: the cold start system and the cold start method for the mining dump truck overcome the defects in the cold start technology of the existing mining dump truck, solve the problem that the mining dump truck is difficult to start at low temperature in extremely cold plateau areas, and provide the cold start system and the cold start method for the mining dump truck.
The technical scheme adopted by the invention is specifically as follows: a cold start system of a mining dump truck,
an oil inlet of the engine is connected with an oil inlet pipe II, the other end of the oil inlet pipe II is connected with an oil-water separator, an oil inlet of the oil-water separator is connected with an oil inlet pipe III, the other end of the oil inlet pipe III is connected with a first interface of a three-way joint II, a second interface of the three-way joint II is connected with an oil inlet pipe I, and the other end of the oil inlet pipe I is connected with a;
an oil return port of the engine is connected with an oil return pipe II, the other end of the oil return pipe II is connected with a first interface of a three-way joint I, a second interface of the three-way joint I is connected with an oil return pipe I, and the other end of the oil return pipe I is connected to the fuel tank;
an oil inlet of the liquid fuel heater is connected with an oil suction pipe III, and the other end of the oil suction pipe III is connected with a third interface of the three-way joint II;
an oil return port of the liquid fuel heater is connected with an oil return pipe III, and the other end of the oil return pipe III is connected with a third interface of the three oil return pipes III;
the water inlet of the liquid fuel heater is connected with a water inlet pipe I, the other end of the water inlet pipe I is connected with a stop valve I, the other end of the stop valve I is connected with a water inlet pipe II, and the other end of the water inlet pipe II is connected with a cooling pipeline water outlet in an engine cylinder sleeve;
the water outlet of the liquid fuel heater is connected with a water return pipe I, the other end of the water return pipe I is connected with a stop valve II, the other end of the stop valve II is connected with a water return pipe II, and the other end of the water return pipe II is connected with a cooling pipeline water inlet in an engine cylinder sleeve.
It further comprises the following steps: and one end of the water return pipe II, which is far away from the stop valve II, is connected with a three-way joint III, and the other two interfaces of the three-way joint III are respectively connected with two water inlets of a cooling pipeline in the engine cylinder sleeve through a water return pipe III and a water return pipe IV.
The water inlet of the liquid fuel heater is connected with a straight-through steel pipe I, and the other end of the straight-through steel pipe I is connected with the water inlet pipe I; a temperature control switch is installed in the straight-through steel pipe I and connected with a connector I; the liquid fuel heater is connected with a connector II through a control wire harness, and the connector II is connected with a rocker switch; the rocker switch is connected with a fuse and is connected with a storage battery; connector I connects red pilot lamp, and connector I, red pilot lamp are connected to in the control wiring harness.
A cold starting method of a mining dump truck comprises the following steps:
the power supply of the whole machine is switched on, the rocker switch is turned on, and the liquid fuel oil heater starts to work;
the liquid fuel oil heater starts to participate in internal water circulation of the engine, and if the temperature of the cooling liquid does not reach 15 ℃, the temperature control switch does not work, and the red indicator lamp is normally on;
after the temperature of the heated engine coolant reaches above 15 ℃, the temperature control switch starts to work to enable a working circuit of the red indicator light to form an open circuit, and at the moment, the red indicator light is turned off to remind a driver of starting the engine;
the rocker switch is turned off after the engine is started.
It further comprises the following steps: the liquid fuel heater is arranged in the cold starting box body, and a box cover is arranged on the cold starting box body; the cold starting box body is fixed on the frame through a cold starting box support I and a cold starting box support II.
The diesel pipe and the water pipe are fixed on the frame and the nearby structure by a rubber sleeve hoop.
The invention has the beneficial effects that: by adding a temperature control switch and an indicator lamp which are specially used for controlling a wire harness, the heating temperature of the cooling liquid can be accurately controlled, the time is saved, the low-temperature starting success rate which is nearly 100 percent is realized, and the efficiency of the whole machine is the highest; the cost is saved to a certain extent, and unnecessary fuel consumption is avoided;
the heating process is easy to observe, easy to operate and strong in practicability; the abrasion degree of the engine starting under the extremely cold condition is reduced, and the service life of the engine is prolonged; meanwhile, the invention is independent and special, has wide application range, lower cost, easy realization and excellent effect;
under the extremely cold working condition, the low-temperature preheating starting is more conveniently and efficiently carried out on the engine, the service lives of the engine and the mining dump truck are ensured, the attendance rate of the mining dump truck is improved, and the normal production is ensured.
Drawings
FIG. 1 is a schematic diagram of a cold start system of a mining dump truck according to the present invention;
FIG. 2 is a control schematic diagram of a cold start system of the mining dump truck according to the invention;
FIG. 3 is a diagram of an embodiment of a cold start system of a mining dump truck according to the invention;
in the figure: 5. an oil inlet pipe I; 6. an oil return pipe I; 9. an engine; 11. an oil inlet pipe II; 12. an oil return pipe II; 13. an oil-water separator; 14. an oil inlet pipe III; 17. a temperature control switch; 18. a connector I; 19. a red indicator light; 20. a rocker switch; 21. a fuse; 22. a storage battery; 23. a connector II; 24. controlling the wire harness; 29. a box cover; 30. a liquid fuel heater; 31. a rubber tube; 32. a straight steel pipe I; 33. a pipe clamp I; 34. a water inlet pipe I; 35. a stop valve I; 36. cold starting the box body; 37. a cold start support I38 and a cold start support II; 39. an oil return pipe III; 40. an oil suction pipe III; 41. a reducing joint I; 42. a three-way joint I; 43. a variable-diameter joint II; 44. a tee joint II; 45. a water return pipe I; 46. a water inlet pipe II; 47. a rubber sleeve hoop; 48. a combination joint; 49. a straight-through joint I; 50. a combined gasket I51 and a stop valve II; 52. a water return pipe II; 53. a straight steel pipe II; 54. a pipe clamp I; 55. a three-way joint III; 56.EW joint; 57. a water return pipe III; 58. a water return pipe IV; 59. a straight joint II; 60. and a combined gasket II.
Detailed Description
The following are specific embodiments of the present invention, and the present invention will be further described with reference to the accompanying drawings.
Example one
Referring to fig. 1, a cold start system of a mining dump truck,
an oil inlet of the engine 9 is connected with an oil inlet pipe II 11, the other end of the oil inlet pipe II 11 is connected with an oil-water separator 13, an oil inlet of the oil-water separator 13 is connected with an oil inlet pipe III 14, the other end of the oil inlet pipe III 14 is connected with a first interface of a three-way joint II 44, a second interface of the three-way joint II 44 is connected with an oil inlet pipe I5, and the other end of the oil inlet pipe I5 is connected with a fuel; an oil return pipe II 12 is connected to an oil return port of the engine 9, the other end of the oil return pipe II 12 is connected with a first interface of a three-way joint I42, a second interface of the three-way joint I42 is connected with an oil return pipe I6, and the other end of the oil return pipe I6 is connected to the fuel tank 7;
an oil inlet of the liquid fuel heater 30 is connected with an oil suction pipe III 40, and the other end of the oil suction pipe III 40 is connected with a third connector of a three-way connector II 44; an oil return port of the liquid fuel heater 30 is connected with an oil return pipe III 39, and the other end of the oil return pipe III 39 is connected with a third interface of a third oil return pipe III 39;
the water inlet of the liquid fuel oil heater 30 is connected with a water inlet pipe I34, the other end of the water inlet pipe I34 is connected with a stop valve I35, the other end of the stop valve I35 is connected with a water inlet pipe II 46, and the other end of the water inlet pipe II 46 is connected with a cooling pipeline water outlet in a cylinder sleeve of the engine 9; the water outlet of the liquid fuel oil heater 30 is connected with a water return pipe I45, the other end of the water return pipe I45 is connected with a stop valve II 51, the other end of the stop valve II 51 is connected with a water return pipe II 52, the other end of the water return pipe II 52 is connected with a three-way joint III 55, and the other two interfaces of the three-way joint III 55 are respectively connected with two water inlets of a cooling pipeline in a cylinder sleeve of the engine 9 through a water return pipe III 57 and a water.
Referring to fig. 2, the water inlet of the liquid fuel heater 30 is connected with a straight steel pipe i 32, and the other end of the straight steel pipe i 32 is connected with a water inlet pipe i 34. A temperature control switch 17 is installed in the straight-through steel pipe I32, and the temperature control switch 17 is connected with a connector I18; the liquid fuel oil heater 30 is connected with a connector II 23 through a control wiring harness 24, and the connector II 23 is connected with the rocker switch 20; the rocker switch 20 is connected with a fuse 21, and the rocker switch 20 is connected with a storage battery 22. The connector I18 is connected with a red indicator light 19, and the connector I18 and the red indicator light 19 are connected into a control wiring harness 24.
The heating principle of the liquid fuel oil heater is that antifreeze liquid in a water jacket of an engine is heated, and under the action of a water pump of the heater, the antifreeze liquid in the engine flows and circulates in a water channel after being heated, so that an engine cylinder body and engine oil are indirectly heated, the rotation resistance moment of a crankshaft of the engine is reduced, the compression ratio is improved, and the engine is easier to start.
The working principle of the embodiment is as follows:
the liquid fuel oil heater is powered by a vehicle-mounted power supply (a storage battery), diesel oil without wax deposition is used as fuel, after a rocker switch is turned on, the whole set of heating system starts to work, the liquid fuel oil heater obtains fuel oil from an oil inlet pipe I5 of a fuel pipeline of the whole machine through a three-way joint II 44 by utilizing an oil suction pipe III 40, the fuel oil is combusted in a combustion chamber in the heater to release a large amount of heat, the unburned fuel oil returns to an oil return pipe I6 of the fuel pipeline of the engine through a heater oil return pipe III 39 and finally returns to a fuel tank;
the low-temperature cooling liquid in the engine cylinder sleeve enters the liquid fuel heater through a circulating pump of the liquid fuel heater 30, the low-temperature cooling liquid is subjected to sufficient heat exchange with heat released by diesel oil combustion to form high-temperature cooling liquid, the high-temperature cooling liquid is conveyed to the engine cylinder sleeve through a circulating pump of the heater, a water return pipe I45, a water return pipe II 52, a water return pipe III 57 and a water return pipe IV 58, the high-temperature cooling liquid is converted into low-temperature cooling liquid after being subjected to sufficient heat exchange with the engine cylinder sleeve, and the low-temperature cooling liquid returns to. This design cost is low, and easy the realization makes cold start system operation more convenient, reliable, promotes the low temperature start efficiency of engine, prolongs engine life to a certain extent, has great application prospect.
Example two
On the basis of the first embodiment, the cold start method for the mining dump truck comprises the following steps:
the power supply of the whole machine is switched on, the rocker switch 20 is turned on, and the liquid fuel oil heater 30 starts to work;
the liquid fuel oil heater 30 starts to participate in internal water circulation of the engine, and if the temperature of the cooling liquid does not reach 15 ℃, the temperature control switch 17 does not work, and the red indicator lamp 19 is normally on;
after the temperature of the heated engine coolant reaches above 15 ℃, the temperature control switch 17 starts to work to enable a working loop of the red indicator lamp 19 to form an open circuit, and at the moment, the red indicator lamp 19 is turned off to remind a driver of starting the engine;
the rocker switch 20 is turned off after the engine is started.
Referring to fig. 3, the liquid fuel heater 30 is installed in a cold start box 36, a box cover 29 is arranged on the cold start box 36, and the cold start box 36 is fixed on the vehicle frame through a cold start box support I37 and a cold start box support II 38. A rubber pipe 31, a straight steel pipe I32, a water inlet pipe I34, a stop valve I35 and a water inlet pipe II 46 are sequentially arranged at the position of a water inlet of the liquid fuel heater 30, a combined gasket I50, a straight joint I49 and a combined joint 48 are sequentially arranged at the position of a water outlet of the engine 9, and the combined joint 48 is connected with the water inlet pipe II 46. A water return pipe I45, a stop valve II 51, a water return pipe II 52, a straight-through steel pipe II 53, a pipe clamp I54 and a three-way joint III 55 are sequentially arranged at the position of a water return port of the liquid fuel heater 30; one path of the three-way joint III 55 is connected with a water inlet of the engine 9 through an EW joint 56, a water return pipe III 57, a straight-through joint II 59 and a combined gasket II 60; similarly, the other path of the three-way joint III 55 is connected with the other water inlet of the engine 9 through a water return pipe IV 58.
One end of an oil suction pipe III is fixed on an oil pump connector of the liquid fuel oil heater 30, and the other end of the oil suction pipe III is arranged on a tee joint II 44 of a diesel oil inlet pipeline of the whole machine by utilizing a reducer union I41; similarly, one end of an oil return pipe III 39 is connected with an oil return port of the liquid fuel heater 30, and the other end of the oil return pipe III is arranged on a tee joint I42 of a diesel oil return pipeline of the whole machine by utilizing a reducer union II 43.
The diesel pipe and water pipe are arranged and fixed on the frame and nearby structures by using rubber sleeve hoops 47, so that the pipeline is reasonable and attractive as much as possible, and the hose is free of deformation. The pipeline adopts the hose, can make things convenient for pipeline debugging and other parts of at utmost cooperation to arrange reasonable pipeline trend, the stop valve design is used for heater and pipeline maintenance, the cost is saved, save time, accurate control heating temperature can be accomplished in the innovative design of control pencil, the function of utilizing heating time to judge the temperature before the disuse, the temperature switch and the red pilot lamp of control pencil can let the accurate judgement tipper of driver reach the start-up condition, the improvement of very big degree is once started the success rate, improve the work attendance of tipper, ensure that user's interests are not impaired.
Claims (6)
1. The utility model provides a cold start-up system of mining dump truck which characterized in that:
an oil inlet of the engine (9) is connected with an oil inlet pipe II (11), the other end of the oil inlet pipe II (11) is connected with an oil-water separator (13), an oil inlet of the oil-water separator (13) is connected with an oil inlet pipe III (14), the other end of the oil inlet pipe III (14) is connected with a first interface of a three-way joint II (44), a second interface of the three-way joint II (44) is connected with an oil inlet pipe I (5), and the other end of the oil inlet pipe I (5) is connected with a fuel tank (;
an oil return pipe II (12) is connected to an oil return opening of the engine (9), the other end of the oil return pipe II (12) is connected with a first interface of a three-way joint I (42), a second interface of the three-way joint I (42) is connected with an oil return pipe I (6), and the other end of the oil return pipe I (6) is connected to the fuel tank (7);
an oil inlet of the liquid fuel heater (30) is connected with an oil suction pipe III (40), and the other end of the oil suction pipe III (40) is connected with a third connector of the three-way connector II (44);
an oil return port of the liquid fuel heater (30) is connected with an oil return pipe III (39), and the other end of the oil return pipe III (39) is connected with a third interface of the three oil return pipes III (39);
a water inlet of the liquid fuel oil heater (30) is connected with a water inlet pipe I (34), the other end of the water inlet pipe I (34) is connected with a stop valve I (35), the other end of the stop valve I (35) is connected with a water inlet pipe II (46), and the other end of the water inlet pipe II (46) is connected with a cooling pipeline water outlet in a cylinder sleeve of the engine (9);
the water outlet of the liquid fuel heater (30) is connected with a water return pipe I (45), the other end of the water return pipe I (45) is connected with a stop valve II (51), the other end of the stop valve II (51) is connected with a water return pipe II (52), and the other end of the water return pipe II (52) is connected with a cooling pipeline water inlet in a cylinder sleeve of the engine (9).
2. The mining dump truck cold start system according to claim 1, characterized in that: one end of the water return pipe II (52) far away from the stop valve II (51) is connected with a three-way joint III (55), and the other two interfaces of the three-way joint III (55) are respectively connected with two water inlets of a cooling pipeline in a cylinder sleeve of the engine (9) through a water return pipe III (57) and a water return pipe IV (58).
3. The mining dump truck cold start system according to claim 1, characterized in that: a water inlet of the liquid fuel heater (30) is connected with a straight-through steel pipe I (32), and the other end of the straight-through steel pipe I (32) is connected with the water inlet pipe I (34); a temperature control switch (17) is installed in the straight-through steel pipe I (32), and the temperature control switch (17) is connected with a connector I (18); the liquid fuel heater (30) is connected with a connector II (23) through a control wiring harness (24), and the connector II (23) is connected with a rocker switch (20); the rocker switch (20) is connected with a fuse (21), and the rocker switch (20) is connected with a storage battery (22); the connector I (18) is connected with a red indicator lamp (19), and the connector I (18) and the red indicator lamp (19) are connected into a control wiring harness (24).
4. A cold starting method of a mining dump truck, which adopts the cold starting system of the mining dump truck as claimed in claim 3, is characterized by comprising the following steps:
the power supply of the whole machine is switched on, the rocker switch (20) is turned on, and the liquid fuel oil heater (30) starts to work;
the liquid fuel oil heater (30) starts to participate in internal water circulation of the engine, and if the temperature of the cooling liquid does not reach 15 ℃, the temperature control switch (17) does not work, and the red indicator lamp (19) is normally on;
after the temperature of the heated engine coolant reaches above 15 ℃, the temperature control switch (17) starts to work to enable a working loop of the red indicator lamp (19) to be broken, and at the moment, the red indicator lamp (19) is turned off to remind a driver of starting the engine;
the rocker switch (20) is turned off after the engine is started.
5. The cold start method for the mining dump truck according to claim 4, characterized in that: the liquid fuel heater (30) is arranged in the cold starting box body (36), and a box cover (29) is arranged on the cold starting box body (36); the cold starting box body (36) is fixed on the frame through a cold starting box support I (37) and a cold starting box support II (38).
6. The cold start method for the mining dump truck according to claim 4, characterized in that: the diesel pipe and water pipe are fixed to the frame and nearby structures by a rubber sleeve hoop (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010577517.2A CN111706452A (en) | 2020-06-23 | 2020-06-23 | Cold start system and method for mining dump truck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010577517.2A CN111706452A (en) | 2020-06-23 | 2020-06-23 | Cold start system and method for mining dump truck |
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| CN111706452A true CN111706452A (en) | 2020-09-25 |
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| CN202010577517.2A Pending CN111706452A (en) | 2020-06-23 | 2020-06-23 | Cold start system and method for mining dump truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532894A (en) * | 1984-03-30 | 1985-08-06 | Daimler-Benz Aktiengesellschaft | Heating arrangement for electrically driven vehicles |
| CN103061926A (en) * | 2013-02-07 | 2013-04-24 | 辽宁工业大学 | System for preheating fuel oil of automotive diesel engine in winter and control method of system |
| CN103541851A (en) * | 2013-09-30 | 2014-01-29 | 徐州徐工特种工程机械有限公司 | Low-temperature starting system of loader-digger |
| CN103742305A (en) * | 2013-12-26 | 2014-04-23 | 内蒙古北方重型汽车股份有限公司 | Fuel heating system of mining dump truck |
| CN204436669U (en) * | 2014-12-24 | 2015-07-01 | 陕西同力重工股份有限公司 | A kind of new preheating device of motor |
| CN106089538A (en) * | 2016-07-27 | 2016-11-09 | 徐州徐工矿山机械有限公司 | A kind of cold starting system of quarry tipper |
-
2020
- 2020-06-23 CN CN202010577517.2A patent/CN111706452A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532894A (en) * | 1984-03-30 | 1985-08-06 | Daimler-Benz Aktiengesellschaft | Heating arrangement for electrically driven vehicles |
| CN103061926A (en) * | 2013-02-07 | 2013-04-24 | 辽宁工业大学 | System for preheating fuel oil of automotive diesel engine in winter and control method of system |
| CN103541851A (en) * | 2013-09-30 | 2014-01-29 | 徐州徐工特种工程机械有限公司 | Low-temperature starting system of loader-digger |
| CN103742305A (en) * | 2013-12-26 | 2014-04-23 | 内蒙古北方重型汽车股份有限公司 | Fuel heating system of mining dump truck |
| CN204436669U (en) * | 2014-12-24 | 2015-07-01 | 陕西同力重工股份有限公司 | A kind of new preheating device of motor |
| CN106089538A (en) * | 2016-07-27 | 2016-11-09 | 徐州徐工矿山机械有限公司 | A kind of cold starting system of quarry tipper |
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Application publication date: 20200925 |
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| RJ01 | Rejection of invention patent application after publication |