TWI500850B - Method of cooling for injection engine and cooling device thereof - Google Patents

Description

Spray engine cooling method and cooling device thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a cooling device for an injection engine, and more particularly to a cooling device for an automobile injection engine.

As international oil prices continue to rise and oil energy is depleted, the development of efficient and energy-efficient internal combustion engine engines is increasingly important. The injection fuel supply system has precise fuel supply, which enables the engine to maintain the correct air-fuel ratio in any state, not only keeping the engine running smoothly, but also complying with environmental regulations. Therefore, whether it is a gasoline engine or a diesel engine, the injection fuel supply system has become an essential component in today's automotive construction.

Since the injectors of the conventional injection engine are disposed outside the intake valve and simultaneously sprayed toward the inner wall of the intake manifold and the intake valve, when the atomization state of the gasoline sprayed from the injector is not good, The mixture of gasoline atomization and air is adhered to the intake valve and the inner wall of the intake manifold is deeper, so that a layer of glue is formed on the inlet valve and the inner wall of the intake manifold. And the charcoal will adsorb more gasoline, resulting in thicker and thicker piles. This is one of the reasons for the carbon deposition of the jet engine, which makes the jet engine prone to knocking, insufficient intake, idle speed, etc. Engine jitter and reduced performance output result in reduced engine life.

In order to improve the problem of the conventional jet engine described above, other authors have proposed a fuel injector device for a jet engine that includes a jet fuel supply system and one or more fuel injection holes through the inside of the fuel injection hole. The surface of the spiral groove structure allows high-pressure fuel to produce a vortex effect in rapid flow, centrifugal due to vortex The force can make the high-pressure fuel have the advantages of better atomization effect, wider spray range and stronger penetrating power, thereby solving the problem that the conventional jet engine is easy to deposit carbon. However, in the summer and subtropical regions, the outdoor air temperature is high, which makes the air temperature in the engine intake manifold higher, and the ideal value of the atomization from the oil and gas eruption is 42 degrees C, so the above-mentioned conventional jet engine cannot. The best effect of oil and gas atomization is exerted, resulting in incomplete combustion, resulting in poor atomization effect. In addition to low power output and fuel consumption, exhaust emissions will also increase.

Therefore, how to reduce the temperature of the air in the intake manifold of the engine to approach the ideal value of the atomization of the oil and gas, so that the oil and gas can be completely burned in the engine, and the need to reduce carbon deposit, save fuel consumption and reduce environmental pollution is The creators of the technical field are eager to solve problems.

In view of the above problems, the present invention provides a cooling method for an injection engine and a cooling device thereof, thereby solving the problem that the intake pipe temperature of the conventional injection engine is high, resulting in poor atomization effect, and incomplete combustion of oil and gas, so that carbon deposition is easy. problem.

The invention provides a cooling method for a jet engine, comprising the steps of: providing a first evaporator of an automobile cooling system; providing a bypass pipe to connect the first evaporator of the automobile cooling system with an intake passage of the automobile engine by the bypass pipe A cold air is drawn in by the first evaporator of the automotive cooling system; and cold air is delivered to the intake passage of the automobile engine via the bypass.

The invention also provides a cooling device for the injection engine, which is connected in parallel to the first evaporator of the automobile cooling system and is connected to an automobile engine intake The cooling device comprises a housing, a bypass tube and a second evaporator. One end of the housing has an intake pipe, and the bottom has a drainage channel, and the inside of the housing is hollow, and constitutes an accommodation space, and the intake pipe and the drainage channel are respectively connected with the accommodation space in the housing, and the shell The opposite end of the seat is connected to a bypass pipe, and the other end of the bypass pipe is connected to the intake passage of the automobile engine, so that the accommodating space in the casing communicates with the intake passage of the automobile engine as a bypass pipe, and the second evaporation The device has two refrigerant conduits disposed at opposite ends of the second evaporator, the second evaporator is installed in the accommodating space of the housing, and the two refrigerant conduits are connected in parallel to the first evaporator of the automobile cooling system. on.

The effect of the invention is that the cooling method of the injection engine and the cooling device thereof can not only reduce the air intake temperature of the intake passage of the automobile engine, but also increase the atomization effect of the oil and gas, and the air content of the cold air is higher, and It can help oil and gas to approach complete combustion in the engine, so that the engine can maximize the output power (horsepower), reduce carbon deposits and save fuel consumption, and reduce the environmental pollution effect to meet the trend of energy saving and carbon reduction.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

Please refer to the schematic diagram and step flow chart of the cooling method of the injection engine according to an embodiment shown in FIGS. 1 and 2. The cooling method of the injection engine and the cooling device 200 thereof according to an embodiment of the present invention are described with the automobile injection engine 100 as an embodiment, but are not limited to the type disclosed in the embodiment. The cooling method of the jet engine 100 includes the following steps:

Step 1: A first evaporator 110 of a car cooling system is provided.

Step 2: A bypass pipe 220 is provided to communicate the first evaporator 110 of the vehicle cooling system with an automobile engine intake passage 120 with the bypass pipe 220.

Step 3: A cold air is drawn in by the first evaporator 110 of the automotive cooling system.

Step 4: Cool air is delivered to the vehicle engine intake passage 120 via the bypass pipe 220.

The bypass pipe 220 of the present invention may be provided by, but not limited to, a cooling device 200 of an injection engine, so that cold air is delivered to the intake passage 120 of the automobile engine to achieve the purpose of cooling.

Please refer to the schematic diagram of the cooling device 200 of the injection engine of an embodiment shown in FIG. The cooling device 200 of the injection engine of the present embodiment is connected in parallel to the first evaporator 110 of the automobile cooling system and communicates with an automobile engine intake passage 120, but is not in the embodiment disclosed by the present invention. The sample is limited.

The cooling device 200 of the injection engine of the embodiment includes a housing 210, a bypass tube 220, and a second evaporator 230. The housing 210 has an intake pipe 212 at one end and a drain 213 at the bottom. The interior of the housing 210 is hollow and defines an accommodating space 211. The intake pipe 212 and the drain 213 are respectively connected to the housing 210. The accommodating spaces 211 are connected to each other, and the opposite end of the housing 210 is connected to a bypass pipe 220, and the other end of the bypass pipe 220 is connected to the intake passage 120 of the automobile engine, thereby making the inside of the housing 210 The accommodating space 211 and the automobile engine intake passage 120 communicate with each other through the bypass pipe 220.

The second evaporator 230 of the present embodiment has two refrigerant conduits 231 disposed at opposite ends of the second evaporator 230. The second evaporator 230 is disposed in the accommodating space 211 of the housing 210, and the two refrigerant conduits 231 are The connected mode is connected to the first evaporator 110 of the automotive cooling system.

Further, the air inlet tube 212 of the housing 210 has a screen 214 for filtering dust in the air. When the air inlet tube 212 of the housing 210 is ventilated through the filter 214 by a blower (not shown). In the accommodating space 211 of the housing 210, the first evaporator 110 of the automobile cooling system respectively delivers a liquid refrigerant to the second evaporator 230 via the two refrigerant conduits 231, and enters the liquid refrigerant absorbing capacity of the second evaporator 230. The heat of the air in the space 211 is set to form a vaporous refrigerant, and the moisture in the air is condensed into water, and is discharged through the drain 213 at the bottom of the casing 210, thereby converting the air in the accommodating space 211 into cold air. And the cold air is sent to the automobile engine intake passage 120 by the air blower through the bypass pipe 220 of the shell 210 opposite to the other end to provide cold air to reduce the air intake temperature and improve the ambient temperature of the fuel injection nozzle. Too high a problem.

Please refer to the flowchart of the step of the cooling method of the injection engine of another embodiment shown in FIG. In order to increase the elasticity of use, the cooling device 200 of the injection engine of another embodiment of the embodiment further includes a control valve 240 selectively mounted in the bypass pipe 220 when the external environment is high temperature. The control valve 240 is opened in a manual or automatic manner so that cold air can be delivered into the intake passage 120 of the automobile engine, and when the external environment is low, the control valve 240 can be closed.

Therefore, the cooling method of the above embodiment includes step 2-1: setting a control valve 240 in the bypass pipe 220 to turn off or open the cold air to adjust according to the temperature.

It can be clearly seen from the above description of various embodiments of the present invention that the technical means of the cooling method of the injection engine and the structural design of the cooling device 200 can not only solve the conventional knowledge. The high temperature of the intake pipe of the injection engine leads to poor atomization effect and incomplete combustion of oil and gas, so that it is easy to deposit carbon and the like.

Compared with the prior art, the cooling method of the injection engine of the present invention and the cooling device thereof can not only reduce the air intake temperature of the entire intake passage of the automobile engine, but also increase the atomization effect of the oil and gas, and include the cold air. The high oxygen content can help the oil and gas to approach the complete combustion in the engine, so that the engine can maximize the output power (horsepower), reduce the carbon deposit and save fuel consumption, and reduce the environmental pollution effect, in order to meet the trend of energy saving and carbon reduction. . In addition, considering the need to use in different temperature environments, the present invention is further equipped with a control valve, so that the cold air can be turned on or off according to the use requirement, and the utility model has more elasticity and high oil and gas atomization than the prior art. Sex.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

100‧‧‧Sp jet engine

110‧‧‧First evaporator

120‧‧‧Automobile engine intake passage

200‧‧‧ cooling device

210‧‧‧Shell

211‧‧‧ accommodating space

212‧‧‧Intake pipe

213‧‧‧Drainage channel

214‧‧‧ filter

220‧‧‧bypass

230‧‧‧Second evaporator

231‧‧‧Refrigerant conduit

240‧‧‧Control valve

Fig. 1 is a schematic view showing a cooling method of a jet engine according to an embodiment of the present invention.

2 is a flow chart showing the steps of a cooling method of the injection engine according to an embodiment of the present invention.

Fig. 3 is a schematic view showing a cooling device of an injection engine according to an embodiment of the present invention.

4 is a flow chart showing the steps of a cooling method of a jet engine according to another embodiment of the present invention.

100‧‧‧Sp jet engine

110‧‧‧First evaporator

120‧‧‧Automobile engine intake passage

200‧‧‧ cooling device

210‧‧‧Shell

211‧‧‧ accommodating space

212‧‧‧Intake pipe

213‧‧‧Drainage channel

214‧‧‧ filter

220‧‧‧bypass

230‧‧‧Second evaporator

231‧‧‧Refrigerant conduit

240‧‧‧Control valve

Claims (4)

A cooling device for a jet engine is disposed in parallel on a first evaporator of an automotive cooling system and is connected to an intake passage of an automobile engine. The cooling device for the injection engine includes: a housing The inside of the housing is hollow and constitutes an accommodating space, and one end of the housing has an air inlet tube connected to the accommodating space, the air inlet tube conveying an air in the accommodating space in the housing; a bypass tube Provided at the other end of the housing, the bypass pipe is connected to the intake passage of the automobile engine by a branch line connection, thereby connecting the housing and the intake passage of the automobile engine; a control valve is installed in the bypass tube Internally, and relatively open or close the connection between the housing and the intake passage of the automobile engine; and a second evaporator having two refrigerant conduits, the second evaporator being installed in the housing, the refrigerant conduits And connecting the second evaporator and the first evaporator of the automobile cooling system, the refrigerant conduits respectively conveying a liquid refrigerant to the second evaporator to generate a low temperature cooling of the air in the accommodating space to form a cold air, Cool air delivered by the bypass pipe to the vehicle engine intake passage. The cooling device for a jet engine according to claim 1, further comprising a drain channel disposed on the housing and communicating with the receiving space. A cooling device for a jet engine according to claim 1, further comprising a screen disposed in the intake pipe of the housing. A cooling method for a jet engine includes the following steps: Providing a first evaporator of a vehicle cooling system; providing a bypass pipe connected to the intake passage of the automobile engine by a branch line connection, and communicating with the first evaporator of the automobile cooling system and an automobile engine intake a passage; a cold air is drawn in by the first evaporator of the automobile cooling system, and a control valve is disposed in the bypass pipe to close or open the cold air; and the car is passed through the bypass pipe The engine intake passage delivers the cold air.