KR101645679B1 - Fuel preheating apparatus for improving fuel efficiency and reduction of exhaust - Google Patents

Fuel preheating apparatus for improving fuel efficiency and reduction of exhaust Download PDF

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Publication number
KR101645679B1
KR101645679B1 KR1020150146755A KR20150146755A KR101645679B1 KR 101645679 B1 KR101645679 B1 KR 101645679B1 KR 1020150146755 A KR1020150146755 A KR 1020150146755A KR 20150146755 A KR20150146755 A KR 20150146755A KR 101645679 B1 KR101645679 B1 KR 101645679B1
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KR
South Korea
Prior art keywords
fuel
hot water
water tank
heat
engine
Prior art date
Application number
KR1020150146755A
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Korean (ko)
Inventor
장정수
김광성
Original Assignee
장정수
김광성
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Priority to KR1020150146755A priority Critical patent/KR101645679B1/en
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Publication of KR101645679B1 publication Critical patent/KR101645679B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/125—Fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/18—Heater

Abstract

The present invention relates to a fuel preheating apparatus for improving fuel efficiency and reducing exhaust gas and, more specifically, to a fuel preheating apparatus for improving fuel efficiency and reducing exhaust gas, which is arranged in a fuel supply pipe formed in an engine to improve combustion efficiency by preheating the fuel supplied to the engine and promoting the activation of the fuel, thereby improving fuel efficiency and minimizing exhaust gas. The fuel preheating apparatus for improving fuel efficiency and reducing exhaust gas comprises: a hollow boiling tank; an electric heater rod which heats boiling oil filled in the boiling tank; and a fuel circulation pipe which promotes the boiling of the fuel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel preheating apparatus for improving fuel economy and reducing smoke,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel preheating apparatus for improving fuel economy and reducing particulate matter, and more particularly, to a fuel preheating apparatus for fuel preheating apparatus for improving fuel economy and reducing smoke, And to a fuel preheating apparatus for improving fuel economy and reducing the amount of soot, which is capable of minimizing the generation of soot.

In general, an engine can be classified into an engine and an external combustion engine, and the internal combustion engine refers to an engine in which combustion of fuel occurs inside the engine.

Such an engine transfers energy directly to the piston using the expansion force of the combustion gas generated by burning the fuel, and performs mechanical work by the piston.

In this way, the combustion efficiency of the engine is changed according to the state of the supplied fuel, and the combustion efficiency described above means the degree to which the fuel reacts with the air to completely combust the fuel.

For example, when the state of the fuel injected into the engine of the engine is supplied at a low temperature, it takes a long time to heat up to the gasification temperature. In addition, the fuel molecules are not fully vaporized and fine fuel molecules cohere to each other, As shown in Fig.

When the injected fuel is present in the form of water droplets, the gas is not completely mixed with air and the engine is incompletely combusted. Due to the incomplete combustion, a large amount of unburnt gases such as hydrocarbon (HC) and carbon monoxide CO) is discharged. In the diesel engine, particulate matter (PM) called soot is exhausted to pollute the atmosphere.

Further, since a large amount of unburned gas is discharged as it is to the atmosphere without being burned, the combustion efficiency and the engine output are lowered, and the fuel consumption rate becomes remarkably large, resulting in a very poor fuel economy.

In particular, in the case of a diesel engine, since the freezing point (-17 ° C) of the fuel for diesel fuel (diesel) is somewhat high, the problem that the engine is not started due to the freezing of the fuel in a cold weather is frequently caused, thereby causing inconvenience to the driver.

In order to solve these problems, various methods for preheating the fuel and supplying the fuel to the engine have been sought recently before the engine is supplied.

However, the conventional fuel preheating devices are preheating the fuel by using the waste heat remaining in the soot discharged through the cooling water or the exhaust port, and it is pointed out that the instantaneous preheating of the cold fuel of the engine is difficult.

(Patent Document 1) KR10-2005-0072212 A

(Patent Document 2) KR10-0373279 B1

(Patent Document 3) KR10-2011-0122670 A

An object of the present invention, which is devised to overcome the above-mentioned problems, is to provide a fuel supply system for an internal combustion engine, which is disposed in a fuel supply pipe formed in an engine, And to provide an improved fuel economy and a fuel preheating device for reducing the amount of soot to ensure improved safety due to the preheating of the fuel.

The above object is achieved by the following constitutions provided in the present invention.

According to the present invention, there is provided a fuel preheating apparatus for improving fuel economy and reducing smoke,

1. A fuel preheating apparatus for fuel economy improvement and smoke reduction which is disposed on a fuel supply pipe to preheat fuel supplied to the engine to promote activation of the fuel,

The fuel preheating device for improving the fuel economy and reducing the smoke includes a hollow hot water tank having a bow inlet at the center and filled with hot water; An electrothermal heater bar inserted in the intestinal inlet of the hot water tank for heating the hot water oil by radiating heat; And a fuel circulation pipe arranged to penetrate through the hollow portion of the hot water tank to heat the hot water and the fuel to heat the hot water of the fuel,

The fuel moving along the fuel circulation pipe is heated by the hot water heated by the heat transfer and is preheated and then supplied to the engine.

Preferably, the hot water tank in which the cooling water for cooling the engine is circulated is formed on the outer wall of the hot water tank so as to be laminated, and the hot water in the hot water tank instantly heated by the heat transferred from the electric heater bar is heated And the heating is performed by the heat radiating from the cooling water.

More preferably, between the hot water tank and the hot water tank, there is formed a hot water tank portion for hot blockage of the cold air emitted from the hot water tank by the hot water tank, and the hot water tank filled with hot water tank So that the phenomenon of delayed heating or cooling is prevented.

When the pressure of the hot water tank exceeds the set pressure due to the expansion of the volume due to the abnormal heating or the abnormal cooling of the hot water in the hot water tank,

The hot water tank filled in the hot water tank is introduced into the auxiliary storage tank to be divided and accommodated, thereby preventing the diffusion of hot water and preventing the rupture of the hot water tank filling the hot water tank.

Further, a fastening portion is formed between the charging hole and the electrothermal heater bar, and the electrothermal heater bar is fixed to the charging hole through fastening.

As described above, according to the present invention, the fuel is preheated through the heat transfer, so that the fuel can be instantaneously preheated, and in particular, since the preheating of the fuel by the hot water tank is performed, Is possible.

Particularly, according to the present invention, in the present invention, the hot water tank in which the cooling water is circulated to the outer wall of the hot water tank filled with the hot water oil is formed in a concentric structure to secure the heat insulating property of the hot water bath, It is possible to continuously preheat the fuel through the cooling water heated by the cooling water.

If the preheating process of the fuel through the heat transfer and the preheating process of the fuel through the heated cooling water are sequentially performed as described above, the amount of electric current stored in the battery can be minimized and the operation time of the heat transfer heater can be remarkably shortened .

Further, in the present invention, a hot-water heat-shielding portion including a heat-shielding piece is formed between the hot water tank and the hot water tank, so that even if the cooling water such as the winter season is cooled to a low temperature and releases a large amount of cold air, It is not transferred to the group but is being shielded.

Therefore, even if the cooling water such as the winter season is cooled to a low temperature, the instant heating and warm-up of the heating water and the fuel can be performed instantaneously by the heat radiating from the heating heater rod.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a disassembly and incision view showing the overall structure of a fuel preheating apparatus for fuel economy improvement and soot reduction proposed in the preferred embodiment of the present invention,
FIG. 3 is a cross-sectional view of a fuel preheating apparatus for improving fuel economy and reducing a soot as a preferred embodiment of the present invention,
FIG. 4 and FIG. 5 are operation states showing sequentially the preheating process of the fuel through the fuel preheating device for improving the fuel economy and reducing the smoke, which is proposed in the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fuel preheating apparatus for improving fuel economy and reducing smoke according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a decomposition and incision view showing the entire structure of a fuel preheating apparatus for fuel economy improvement and soot reduction proposed in the preferred embodiment of the present invention. FIG. 3 is a cross- FIG. 4 and FIG. 5 are operation state diagrams sequentially showing the preheating process of the fuel through the fuel preheating device for improving the fuel economy and reducing the smoke, which is proposed in the preferred embodiment of the present invention.

As shown in Figs. 1 and 2, the fuel preheating apparatus 1 for fuel economy improvement and soot reduction proposed in the preferred embodiment of the present invention preheats the fuel supplied to the engine and controls the activation of the fuel supplied to the engine .

The fuel that has been activated through the preheating is secured in fluidity so that the fuel can be injected stably into the engine. Particularly, the combustion efficiency is improved through active mixing with air, .

The fuel preheating device for improving the fuel economy and reducing the smoke according to the present invention basically preheats the fuel supplied to the engine through the generated heat generated by resistance heating of the current charged in the vehicle battery to stabilize the fuel preheated in the engine .

Particularly, in the present invention, the fuel that moves along the fuel supply pipe through the heat transfer is not directly heated, and the fuel supplied to the engine along the fuel supply pipe is heated through the hot water heating to prevent the ignition of the fuel by the spark, And minimizes the current consumption of the battery.

As shown in FIGS. 1 to 3, the fuel preheating apparatus 1 for improving the fuel economy and reducing the smoke has a long inlet 11 formed at the center thereof and a hollow hot water tank 10); An electric heater bar 20 inserted into the entry port 11 of the hot water tank 10 to heat the hot water O filled in the hot water tank 10 by dissipating heat through resistance heating; And a fuel circulation pipe (10) arranged to penetrate through the hollow portion of the hot water tank (10) to heat the fuel supplied to the engine along the fuel supply pipe with the hot water (O) (50).

The fuel circulation pipe 50 passing through the hot water tank 10 filled with the hot water O is formed into a coil shape wound in the form of a spiral so that the hot water O flows through the hot water tank 10, And the continuous heat exchange of the fuel.

Between the inner wall of the charging hole 11 and the electrothermal heater bar 20, fastening portions 11a and 21 are formed correspondingly so that the electrothermal heater bar 20 is fastened It is possible to perform cleaning or replacement repair through the quick disassembly of the heater bar during maintenance.

Therefore, the hot water O filled in the hot water tank 10 is instantly heated by the heat exchange with the heat transferred from the electrothermal heater bar 20 disposed in the charging hole 11, and the heated hot water oil O is heat-exchanged with the fuel moving along the fuel circulation pipe 50 so as to instantaneously preheat the fuel.

Thus, the fuel supplied to the engine along the fuel circulation pipe 50 is preheated by heating the hot water through the hot water heated by the heat transfer, and is supplied to the engine of the automobile in the activated state. As a result, The combustion efficiency is improved by intensive mixing and combustion.

Particularly, in the present embodiment, since the heat emitted from the electrothermal heater bar 20 is not directly conducted to the fuel circulation pipe 50 but the fuel is preheated through the hot water tank O through the hot water tank O, It is possible to prevent the occurrence of ignition.

In the present embodiment, the auxiliary storage tank 13 partitioned by the pressure valve 13a is disposed in the hot water tank 10 so that the hot water volume is excessively expanded due to abnormal heating of the hot water O or abnormal cooling So that some of the hot water O filled in the hot water tank 10 is divided and stored in the auxiliary storage tank 13 when the internal pressure of the hot water tank exceeds the set pressure.

With this configuration, even if the internal pressure of the hot water tank 10 exceeds the set pressure due to abnormal heating of the hot water O or abnormal cooling, some hot water O is divided and stored in the auxiliary storage tank 13, And the phenomenon that the molten metal is diffused to the outside is prevented in the molten metal bath where the molten metal bath is ruptured or ruptured due to the occurrence.

In the present invention, in order to preheat the hot water of the fuel moving along the fuel circulation pipe (50) through the heat radiated from the electrothermal heater bar (20) to instantaneously preheat the fuel, the cooling water 4, when the cooling water W is heated by continuous driving of the engine, the heat of the fuel is preheated through the heat generated and dissipated in the heat transfer heater bar 20 as shown in FIG. 5 Likewise, by configuring the heat of the fuel to be preheated by the heat radiating from the heated cooling water (W) which is not the heat, the current consumption due to heat generation is minimized.

To this end, in the present embodiment, the warming tank 30, which forms a circulation space for the cooling water injected into the vehicle radiator (not shown) to cool the engine, is formed in a concentric structure on the outer wall of the hot water tank 10, A heat insulating layer is formed on the outer wall of the hot water tank through the cooling water heated by the cooling action of the engine.

An inlet pipe 31 through which the cooling water W flows and a discharge pipe 32 through which the cooling water circulated through the warming tank 30 are respectively formed are formed in the warming tank 30, Allowing circulation of heated cooling water continuously.

Therefore, the fuel preheating apparatus 1 for improving the fuel economy and reducing the smoke according to the present invention basically has a structure in which, as shown in FIG. 4, in the initial driving process of the engine in which the cooling water W is not heated, The heating of the hot water O filled in the hot water tank 10 and the preheating of the fuel moving along the fuel circulation pipe 50 are performed.

When the cooling water W is heated by the continuous driving of the engine, the hot water O filled in the hot water bath 10 and the fuel moving along the fuel circulation pipe 50 are heated Heating or preheating is performed through heat exchange with the cooling water (W).

Thus, in the initial driving process, the electrothermal heater bar 20 is heated by the electric current stored in the battery to instantaneously preheat the fuel moving along the fuel circulation pipe 50. When the cooling water is heated to the set temperature or more, Since the heat of the fuel flowing along the fuel circulation pipe 50 is continuously heated through the heat exchange with the heating water W, it is possible to stably warm up the fuel through the stepwise heating by the insulating heater rod and the heated cooling water, Can be saved.

In addition, in the present invention, between the hot water tank 10 arranged in the concentric structure and the warming tank 30, there is provided a hot-shrinking portion 40 for forming a hot-shrinking layer by the heat provided from the electrothermal heater bar 20 The hot water tank 10 and the hot water tank 30 are thermally heat-treated in a state in which the cooling water does not reach the set temperature by the hot water heater portion 40 and the hot water oil O ) Is to be applied.

The heat shielding portion 40 includes a heat dissipating heat insulating piece 41 disposed between the outer wall of the hot water bath 10 and the inner wall of the heat insulating bath 30, And a conductor 42 which is disposed between the electrically conductive heater rods 20 disposed on the heat conductive heater rods 20 and guides the heat transferred from the electrically conductive heater rods 20 to the heat dissipating heat conductive pieces 41 to conduct them.

A variable conductor 22 is disposed at an end of the electrothermal heater rod 20 facing the conductor 42. The variable conductor 22 according to the present embodiment has a shape that is elongated by heating and contracts by cooling Coil spring made of a memory alloy material.

Therefore, when the hot water tank 10 is heated primarily by the initial heat generation of the electrothermal heater bar 20, the variable electrical conductor 22 disposed on the electrothermal heater bar 20 is heated And is in close contact with the conductor 42 disposed at the lower portion.

At this time, the heat transferred from the electrothermal heater rod 20 is conducted to the heat shielding piece 41 disposed between the bathtub 10 and the warming tank 30 through the variable conductor 22 and the conductor 42, The heat shielding pieces are heated to form a heat shielding layer between the hot water tank 10 and the warming tank 30. [

Thus, since the cold air emitted from the cooling water W filled in the thermal insulation tank 30 is shielded by the heated heat shielding piece 42, the hot spring oil filled in the hot water tank is cooled by the cold air emitted from the cooled cooling water Heated by the heat transferred from the electrothermal heater rods 20 without cooling by the circulation pipe 50, thereby instantaneously preheating the fuel passing through the bathtub 10 through the fuel circulation pipe 50.

Thereafter, when the cooling water filled in the warming tank 30 is sufficiently heated by the continuous driving of the engine, the supply of electric current to the electrothermal heater bar 20 is interrupted as shown in FIG. 5, The thermally elongated variable conductor 22 provided at the end portion is cold-contracted to maintain a state spaced apart from the conductor 42.

In the state where the cooling water W is sufficiently heated, the hot water O filled in the hot water tank 10 is heated by the heat emitted from the heated cooling water W and flows through the fuel circulation pipe 50 Continuous preheating of the fuel passing through the hot water tank 10 is achieved.

1. Fuel preheater
10. Hot water bowl 11. Entrance
11a. Fastening part 12. Heated oil
13. Auxiliary reservoir 13a. Pressure valve
20. Electrothermal heater bar 21. Fastening part
22. Variable conductor
30. Hot water tank 31. Injection pipe
32. The discharge pipe
40. Heat shielding part 41. Heat shielding part
42. Conductor
50. Fuel circulation pipe

Claims (3)

1. A fuel preheating apparatus for fuel economy improvement and smoke reduction which is disposed on a fuel supply pipe to preheat fuel supplied to the engine to promote activation of the fuel,
The fuel preheating device for improving the fuel economy and reducing the smoke comprises a hollow hot water tank having a bow inlet formed at the center thereof and filled with hot water;
An electrothermal heater bar inserted in the intestinal inlet of the hot water tank for heating the hot water oil by radiating heat; And
And a fuel circulation pipe disposed through the hollow portion of the hot water bath for heat exchange of the heated hot water and the fuel to heat the hot water of the fuel,
The fuel that moves along the fuel circulation pipe is heated by hot water heated by electric heat to be preheated and then supplied to the engine,
Wherein a hot water tank in which cooling water for cooling the engine is circulated is formed on the outer wall of the hot water tank so that the hot water in the hot water tank heated instantaneously by the heat transferred from the electric heater bar is cooled by the cooling water Wherein the fuel is heated by the heat generated by the combustion of the fuel. delete The hot water tank as claimed in claim 1, wherein a hot-water heat exchanger is provided between the hot water tank and the hot water tank for hot-blocking the cold air emitted from the hot water tank by hot water, Wherein the heating of the oil is delayed or prevented from being cooled.
KR1020150146755A 2015-10-21 2015-10-21 Fuel preheating apparatus for improving fuel efficiency and reduction of exhaust KR101645679B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112065616A (en) * 2020-08-26 2020-12-11 安徽安凯汽车股份有限公司 Fuel pipeline heating device and control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200346849Y1 (en) * 2004-01-16 2004-04-08 장운돈 Sooty smoke reduction device of diesel engine
KR200411853Y1 (en) * 2006-01-06 2006-03-17 진동규 Fuel heating device for vehicle
KR20110128102A (en) * 2010-05-20 2011-11-28 손영숙 Electric heat boiler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200346849Y1 (en) * 2004-01-16 2004-04-08 장운돈 Sooty smoke reduction device of diesel engine
KR200411853Y1 (en) * 2006-01-06 2006-03-17 진동규 Fuel heating device for vehicle
KR20110128102A (en) * 2010-05-20 2011-11-28 손영숙 Electric heat boiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112065616A (en) * 2020-08-26 2020-12-11 安徽安凯汽车股份有限公司 Fuel pipeline heating device and control method thereof

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