WO2008043247A1

WO2008043247A1 - Alcohol-gasoline dual-fuel supply device for vehicle

Info

Publication number: WO2008043247A1
Application number: PCT/CN2007/002694
Authority: WO
Inventors: Kaijuan Sun; Huishu Zhang
Original assignee: Kaijuan Sun; Huishu Zhang
Priority date: 2006-09-29
Filing date: 2007-09-11
Publication date: 2008-04-17
Also published as: CN1936310A; CN100417802C

Abstract

A vehicle fuel supply device is disclosed, the bottom wall of an alcohol tank (14) with an alcohol meter (15) is communicated with the input end of an alcohol valve (13), the output end of the alcohol valve (13) is communicated with the oil pipe between a gasoline valve (12) and a gasoline filter (8), the output end of a gasoline pump (6) is communicated with the alcohol input pipe (25) of a gasifying dissociator (17), the output pipe (30) of the gasifying dissociator (17) is communicated with one end of an alcohol pipe (19) with a sandwich, the other end of the alcohol pipe (19) with a sandwich is communicated with the input end of a carburetor (3); bolts are engage with nuts through the holes of the flange (31) disposed on the upper end of the gasifying dissociator (17) and the holes of the flange disposed on the output end of an exhaust manifold (5); bolts are engage with nuts through the holes of the flange (31) disposed on the lower end of the gasifying dissociator (17) and the holes of the flange disposed on the output end of a muffler (9).

Description

Ethanol-gasoline dual fuel vehicle fuel supply device

The present invention relates to an automotive fuel supply apparatus, and more particularly to an ethanol-gasoline dual fuel automobile fuel supply apparatus. Second, the background technology

With the increasing global warming effect of the earth and the frequent occurrence of severe weather disasters, it has become the current global consensus to vigorously develop the production and application of ethanol to replace petroleum fossil energy. Countries are scrambling to vigorously develop, promote and apply. Biofuel ethanol, in the automotive field, but there are still technical bottlenecks that hinder rapid promotion in a large number of applications. There are two main points: First, low ratio blending, using ethanol on existing engines, due to gasoline and ethanol. The mutual solubility is very poor, and it is easy to stratify. Therefore, China currently only promotes the use of "ethanol gasoline" with 10% ethanol, that is, E10, and 15% for foreign countries, and 25% for 20% (Brazil); Engines designed and manufactured, such as the United States with 85% ethanol, Brazil, Sweden and Japan with 100% ethanol engines are specially designed and manufactured. At the same time, in the actual use, several additives must be added to solve the problem that the atomization performance is inconsistent, the burning speed is inconsistent, the self-contradictory, the power offset and the incomplete combustion are generated when the ethanol and the gasoline are mixed, and the added additive is expensive. The price advantage of ethanol gasoline is not obvious enough, and the production of additives is also produced in the production process.

Patent No. 01136415. 7 discloses a patented "Method for Realizing Alcohol and Gasoline Fuel Vehicles", which is still atomized and then supplied to the engine as a fuel. Third, the invention content

The object of the present invention is to provide a simple structure, a gasification cracking cylinder is arranged outside the engine, and the heat energy of the exhaust gas of the engine is fully utilized, and the liquid ethanol in the gasification cracking cylinder is heated and vaporized, and the cracking reaction is generated under the action of the catalyst. The fuel gas formed by cracking is supplied to the ethanol-gasoline fuel vehicle fuel supply device of the engine.

The technical solution adopted by the object of the present invention is that the intake manifold of the engine is equipped with a vaporizer with an air cleaner and an exhaust manifold, and a gasoline tank with a fuel gauge is connected to one end of the gasoline tube, and the other end of the gasoline tube is connected. At the input end of the gasoline valve, the output end of the gasoline valve is connected to the input end of the gasoline filter, and the output end of the gasoline filter is connected to the input end of the gasoline pump with the oil cup, which is characterized in that the bottom wall of the ethanol tank with the ethanol meter is connected to the input end of the ethanol valve. The output end of the ethanol valve is connected to the oil pipe between the gasoline gas and the gasoline filter; the output end of the gasoline pump is connected to the ethanol feed pipe of the gasification cracking cylinder; the gasification cracking gas output of the gasification cracking cylinder is connected One end of the ethanol pipe of the interlayer interlayer, the other end of the ethanol pipe with the interlayer is connected to the input end of the vaporizer; the bolt passes through the hole of the flange of the upper end of the gasification cracking cylinder and the hole of the exhaust manifold output flange engages with the nut , the bolt passes through the hole of the flange of the lower end of the gasification cracking cylinder and the hole of the muffler input connection flange engages with the nut.

According to the present invention, an inner cylinder, a middle cylinder and an outer cylinder are welded from the inner and outer sides of the upper and lower flanges of the gasification cracking cylinder, and an insulation layer is filled between the outer cylinder and the middle cylinder, and a middle layer is formed between the inner cylinder and the inner cylinder. The annular exhaust passage has a hole in the upper and lower flanges of the annular exhaust passage, and the ethanol feed pipe is welded through the outer tube, the middle cylinder, and the lower tube wall of the inner cylinder, and the gasification cracking gas output pipe passes through the outer cylinder The upper tube wall of the middle tube and the inner tube are welded and connected, and the lower part of the inner tube of the lower flange is provided with an inner bushing with a hole and a preheating resistance box with a resistance wire in the outer portion from the outer to the inner side, and the upper end of the preheating resistance box is placed. There is a separating plate, four layers of metal mesh plates, four layers of catalyst device layers and four layers of bushings are placed in the upper end of the inner bushing, and the holes of the bushing in the uppermost layer face the gasification cracking output pipe, in the lowermost layer. The bore of the liner faces the ethanol feed tube.

In the present invention, the first layer of the catalyst device layer from the bottom to the top is platinum wire on the metal mesh plate.

In the present invention, copper oxide is placed on the second layer of the catalyst device layer from the bottom to the top.

In the present invention, ferroferric oxide powder is placed on the third layer of the catalyst device layer from the bottom to the top. In the present invention, titanium dioxide powder is placed on the fourth layer of the catalyst device layer from the bottom to the top.

Although gasoline and diesel currently used in internal combustion engines are liquid fuels, their combustion in the engine must be carried out under gas phase conditions. That is to say, after the liquid fuel enters the engine cylinders, the first is to absorb heat (ie, latent heat of vaporization). The gasification phase change is carried out, and the second step is the combustion in the gas phase state. The invention firstly vaporizes the ethanol liquid fuel before entering the engine cylinder, and releases the latent heat of vaporization outside the cylinder to reduce the heat load loss in the engine, and the gas phase fuel can be evenly mixed with the gas fuel of other varieties. The air entering the air inlet is mixed with the air. The invention utilizes the exhaust heat energy of the engine, which accounts for about 35% of the total energy consumption of the engine, the exhaust gas temperature is generally 700 ° C -800 ° C, and the diesel engine is generally 600 ° C - ⁷⁰⁰ ° C. In the gasification cracking cylinder, gasification of a liquid fuel such as ethanol is performed. After the gasification of ethanol, in the gas phase ethanol gas, at a temperature higher than 360 ° C - ⁵ 0 (TC internal temperature, the catalyst will be provided: there may be copper oxide, triiron tetroxide, titanium dioxide, platinum, cerium oxide, etc. , the gaseous ethanol produces the following cracking reaction:

Catalysis

C ₂ H ₆ 0 + 1/20 ₂ 3H ₂ +2C0

Δ cracking produces fuel gas that is supplied to the engine.

The invention has the advantages of simple and compact structure, convenient manufacture and assembly, and the invention is installed on the basis of the existing engine, and the cost is low. The use of ethanol is a renewable energy source, and the exhaust gas discharged is favorable for environmental protection. You can mix gasoline-ethanol gas in any ratio, or you can burn pure ethanol or burn pure gasoline. Before use, the resistance wire in the preheating resistance box is electrically heated to make the gasification cracking cylinder have a certain temperature, which is convenient for gasification and cracking reaction. After the temperature is constant, the power is turned off, and the temperature of the exhaust gas is exhausted by the engine to be constant. Fourth, the description of the drawings

The invention will now be further described with reference to the accompanying drawings.

Figure 1 is a schematic view of the structure of the present invention;

2 is a schematic cross-sectional view showing the gasification cracking cylinder of the present invention.

In the picture: 卜油表2-air filter 3-vaporizer 4-intake manifold ⁵ - exhaust manifold 6 - petrol pump 7 - oil cup 8 - fuel filter 9 - muffler 1 0 - petrol pipe 11 - Gasoline tank 12 - Gasoline valve 1 3-ethanol valve 14 - Ethanol tank I ⁵ - Ethanol table 16 - Ethanol tube I ⁷ - Gasification cracking cylinder 18 - Engine 19 - Laminated ethanol tube 20 - Outer tube 21 - Inner tube ²² - Isolation plate 23 - Preheating resistance box 24 - Inner bushing 25 - Ethanol feed pipe 26 - Annular exhaust passage 2 ⁷ - Bushing 28 - Intermediate cylinder 29 - Insulation layer 30 - Gasification cracking gas outlet pipe 31- Flange 32 - metal mesh plate 33 - catalyst device layer 5, a specific embodiment

As shown in FIG. 1 and FIG. 2, the manifold 4 of the engine 18 is equipped with a vaporizer 3 with an air cleaner 1 and an exhaust manifold 5, and a gasoline tank 11 with a fuel gauge 1 is connected to the 10-end of the gasoline tube. The other end of the gasoline pipe 10 is connected to the gasoline wide 12 input end, the output of the gasoline valve 12 is connected to the input end of the gasoline filter 8 , and the output end of the gasoline filter 8 is connected to the input end of the gasoline pump 6 with the oil cup 7 , which carries the ethanol The bottom wall of the ethanol tank 14 of Table 15 is connected to the input end of the ethanol valve 13 , the output end of the ethanol valve 13 is connected to the oil pipe between the gasoline valve 12 and the gasoline filter 8; the output end of the gasoline pump 6 is connected to the ethanol feed pipe of the gasification cracking cylinder 17 '25; the gasification cracking gas output pipe 30 of the gasification cracking cylinder 17 communicates with one end of the intercalated ethanol gas pipe 19, and the other end of the interlayered ethanol gas pipe 19 communicates with the input end of the vaporizer 3; the bolt passes through the upper end of the gasification cracking cylinder 17 flange nut bore hole 5 and the output manifold flange ³ engages a bolt through the holes 17 and the lower end of the muffler vaporized cracked cylinder flange 31 of the input aperture 9 is connected to the flange The nut is engaged. Gasifier cracking cylinder 17, between the lower flange ³¹ from the inside out has a welded inner tube 21, the tube 28, the outer cylinder ^20, and the outer cylinder 20 has the cylinder ²⁸ is filled between the insulating layer 29, An annular exhaust passage 26 is formed between the middle cylinder 28 and the inner cylinder 21, and the upper and lower flanges 31 of the annular exhaust passage 26'

With a hole, the ethanol feed pipe ^{25 is} welded through the outer cylinder 20, the middle cylinder 28, and the lower pipe wall of the inner cylinder, and the gasification cracking gas output pipe ³⁰ passes through the outer cylinder 20, the middle cylinder 28, and the upper tube of the inner cylinder. Wall welded joint, lower flange ³ 1 upper end inner cylinder ² 1 lower part from the outside to the inside is placed with a perforated inner bushing 24 and a resistor The preheating resistor box 23 of the wire, the upper end of the preheating resistor box 23 is provided with a separating plate 22, and the upper end of the inner bushing 24 is sequentially placed with four layers of the metal mesh plate 32, four layers of the catalyst device layer 33 and four layers of the bushing 27, at the top The hole of the bushing 27 of the layer faces the gasification cracking output pipe 30, and the hole of the bushing 27 of the lowermost layer faces the ethanol feed pipe 25. From the bottom to the top, the first layer of the catalyst device layer 33 is platinum wire on the metal mesh plate 32. Copper oxide is placed on the second layer of the catalyst device layer 33 from the bottom to the top. Four iron triiron powder was placed on the third layer of the catalyst device layer 33 from the bottom to the top. Titanium dioxide powder was placed on the fourth layer of the catalyst device layer 33 from the bottom to the top.

The insulating layer 29 may be made of aluminum silicate fiber or expanded by 3 beads.

Claims

Rights request

1. An ethanol-gasoline dual fuel vehicle fuel supply device, an intake manifold (4) of an engine (18) equipped with a vaporizer ( ³ ) with an air filter (2) and an exhaust manifold (5), The fuel tank (11) with the fuel gauge (1) is connected to the gasoline pipe (10)-end, the other end of the gasoline pipe (10) is connected to the input end of the gasoline valve (12), and the output of the gasoline valve (12) is connected to the gasoline filter. At the input end of the (8), the output of the fuel filter (8) is connected to the input end of the gasoline pump (6) with the oil cup (7), which is characterized by an ethanol tank (14) with an ethanol meter (15). ethanol communication valve (I ³⁾ input, ethanol valve (I ³⁾ the output of the gasoline communication valve (12) and the fuel filter (8) between the tubing; fuel pump (6) communicating the output of the gasification cracking tube (17 The ethanol feed pipe ( ²⁵ ); the gasification cracking gas output pipe (30) of the gasification cracking cylinder (17) communicates with the one end of the intercalated ethanol gas pipe (19), the interlayer of the ethanol gas pipe (I ⁹ ) is connected The input end of the carburetor (3); the hole through the flange (31) of the upper end of the gasification cracking cylinder (17) and the hole of the output flange of the exhaust manifold (5) Engaged with the nut, the bolt passes through the hole of the flange (31) at the lower end of the gasification cracking cylinder (17) and the hole of the muffler (9) input connection flange engages with the nut.

2. An ethanol-gasoline dual fuel automobile fuel supply apparatus according to claim 1, wherein the upper and lower flanges (31) of the gasification cracking cylinder (17) are welded with inner cylinders from the inside to the outside. (21), the middle cylinder 8), the outer cylinder 0), the outer cylinder ( ²⁰ ) and the middle cylinder U8) are filled with the insulation layer U9), and the middle cylinder 8) forms an annular exhaust passage with the inner cylinder ( ) (26), the annular exhaust passage ⁽²⁶⁾ and lower flange (31) with holes, ethanol feed tube ⁽²⁵⁾ through the outer cylinder ^(20), the cylinder 8), the inner tube (21 The lower pipe wall is connected, and the gasification cracking gas outlet pipe (30) is welded through the outer pipe (20), the middle cylinder (28), the upper pipe wall of the inner cylinder (21), and the lower flange (31) The upper end inner tube (21) is placed from the outside to the inside (the inner bushing (24) with the hole and the preheating resistor box (23) with the resistance wire, and the upper end of the preheating resistor box U3) is isolated. The plate (2 ² ), the upper end of the inner bushing (24) is placed with four layers of metal mesh plates ( ³² ), four layers of catalyst device layers ( ³³ ) and four layers of bushings, and holes in the uppermost bushing (27). Against the gasification cracking output tube (30), Liner (27) of the lowermost layer facing hole ethanol feed tube (25).

An ethanol-gasoline dual fuel automobile fuel supply apparatus according to claim 1, wherein the first layer of the catalyst device layer (33) is platinum wire entangled on the metal mesh plate (32).

An ethanol-gasoline dual fuel automobile fuel supply apparatus according to claim 1, wherein copper oxide is placed on the second layer of the catalyst device layer (33) from the bottom to the top.

5. An ethanol-gasoline dual fuel automobile fuel supply apparatus according to claim 1, wherein a ferroferric oxide powder is placed on the third layer of the catalyst device layer ( ³³ ) from the bottom to the top.

6. An ethanol-gasoline dual fuel automobile fuel supply apparatus according to claim 1, wherein titanium dioxide powder is placed on the fourth layer of the catalyst device layer ( ³³ ) from the bottom to the top.