KR20220002763U - Fuel Supply Apparatus Having Temperature Maintenance Structure - Google Patents

Abstract

A fuel supply device including a temperature maintaining structure is disclosed. A fuel supply device according to an embodiment of the present invention includes a body cylinder portion having a cylinder structure in which a space for cooling water to flow is formed; A fuel flow piping structure is formed in which the fuel flows from one side of the main cylinder part into the main cylinder part and is discharged to the other side of the main cylinder part to flow, and performs heat exchange with the cooling water filled in the main cylinder part to discharge to the other side of the main cylinder part A fuel flow unit that maintains the temperature of the fuel within a certain range; a cooling water injection nozzle mounted on one end of a side surface of the body cylinder unit and injecting cooling water having a predetermined temperature into the body cylinder unit; and a cooling water discharge nozzle mounted on the other end of the side surface of the body cylinder unit and discharging cooling water that has undergone heat exchange after being injected into the body cylinder unit to the outside.
According to the present invention, the amount of soot and particulate matter generated in the fuel combustion process can be reduced, and the temperature of the fuel is set to a certain temperature for complete combustion of the fuel to reduce the generation of noise during the fuel combustion process. It is possible to provide a fuel supply device including a temperature maintaining structure capable of being maintained.

Description

Fuel supply apparatus including a temperature maintenance structure {Fuel Supply Apparatus Having Temperature Maintenance Structure}

The present invention relates to a fuel supply device, and more particularly, to a fuel supply device including a temperature maintaining structure capable of inducing complete combustion of fuel.

In general, a vehicle is a mobile device driven by receiving propulsive force by burning fuel supplied from a fuel tank in an engine, and complete combustion of fuel is very important to improve fuel combustion efficiency. That is, complete combustion of fuel can save fuel by reducing fuel consumption by improving combustion efficiency, and environmental pollution can be minimized by minimizing the emission of various harmful components due to incomplete combustion through complete combustion.

However, in the prior art, since it is virtually difficult to burn fuel ideally close to complete combustion due to structural characteristics when driving a vehicle, fuel consumption is high compared to the driving force due to low combustion efficiency, and in particular, various harmful effects due to incomplete combustion of fuel It causes serious air pollution, such as releasing dust and causing adverse effects on the human body.

Therefore, a system for inducing complete combustion of vehicle fuel that can provide maximum heat utilization effect with minimum fuel consumption by maximizing thermal efficiency while completely burning fuel with high efficiency in a state without unburned emissions of various harmful components Technology development was necessary.

An automobile uses an internal combustion engine that burns fuel in the engine and converts the heat energy generated here into kinetic energy. In general, fuel supplied as a liquid is mixed with air and vaporized for combustion, rather than as a liquid itself, so that the combustion speed is faster. Because of the strong explosive power, automobiles are necessarily provided with a fuel supply device that supplies a mixture for engine operation.

At this time, gasoline engines and diesel engines using fuels having different ignition properties have different combustion chamber shapes and combustion methods for obtaining optimum explosive power.

That is, in the combustion process of the combustion chamber, the gasoline engine injects a mixture of gasoline and air (air-fuel ratio of about 13 to 18:1) into the combustion chamber and electrically ignites it, whereas the diesel engine sucks air into the combustion chamber and compresses it with a piston. It uses a compression ignition method that injects diesel into heated air (approximately 600℃) at high pressure, and the length of the cylinder is longer than that of a gasoline engine.

In addition, there are differences between gasoline engines and diesel engines in the fuel supply device, but in general, the fuel supply device is a fuel tank for storing fuel to supply an appropriate mixture required by the engine, impurities in the fuel A fuel filter that removes fuel, a fuel pump that sends fuel to a carburetor or fuel injector, a carburetor that creates a mixture and supplies it to an engine, or a fuel injector that directly injects fuel, and fuel that connects these devices. It can be seen that it consists of pipes.

A process in which fuel is sent to a diesel engine by the fuel supply device and a structure of a fuel tank will be described with reference to FIG. 1 .

First, looking at the structure of the fuel tank 10, an oiling pipe 1 is installed on one side of the fuel tank so that fuel can be injected from the outside. At this time, a vent pipe 2 is installed to allow air to escape from the closed fuel tank when fuel is injected.

That is, when fuel is injected into the fuel tank 10 through the filling hole 1a of the filling pipe, the air in the fuel tank, which is an enclosed space, flows from the inlet 2a of the vent pipe to the outlet disposed near the filling hole 1a ( The internal pressure of the fuel tank 10 is relieved by being discharged through the filling port through 2b).

In this way, the fuel stored in the fuel tank 10 through the fuel injection port 1 is removed from foreign substances contained in the fuel by the fuel filter 21 installed at the bottom of the fuel tank, and the fuel supply pump 20 presses the fuel stored in the fuel tank 10 to a predetermined pressure. is pumped to the fuel injection pump 23 through the fuel pipe 24. At this time, the fuel pumped by the fuel supply pump 20 is filtered again in the fuel filter 22 and sent to the fuel injection pump.

Then, the fuel injection pump 23 constantly adjusts the injection amount of fuel injected into the engine, and pressurizes the high-pressure fuel to the injection nozzle 31a, and the excess fuel is supplied to the fuel tank through the return pipe 25. Send it back to the inside of (10).

Since the turbo engine does not have a burden on knocking, the inner diameter of the cylinder is longer than that of the gasoline engine, and therefore, the diesel engine using the long stroke produces large torque even at low revolutions. However, a diesel engine has lower output than a gasoline engine and is difficult to expect high rotation like a gasoline engine, so a turbo engine having a turbo charger was developed for the purpose of obtaining high output.

That is, the turbo engine uses the power of the exhaust gas coming out of the engine. When the exhaust gas is discharged from the engine through the exhaust pipe 35 and the turbine wheel 33a is turned, the rotational force is sucked by turning the compressor wheel 33b through the shaft. Air is compressed and sent from the intake air pipe 36 to the combustion chamber through the intake manifold or intake manifold. At this time, since the intake air is forcibly pushed in rather than the natural intake method, the amount of air is increased compared to the natural intake method. These turbo engines increase the output by more than 20% compared to before installation.

As described above, the engine of a vehicle mixes fuel with air and combusts it to obtain the rotational force of the wheel by the explosive force, and further uniformizing and increasing the contact between fuel and air guarantees complete combustion of the combustion chamber. to be an important factor for

At this time, it would be ideal to mix fuel vapor with air and combust it in consideration of complete combustion or engine efficiency. It is atomized and sprayed into the combustion chamber, or made into a mixture with air through a carburetor and sent to the combustion chamber.

However, it is true that these liquid fuels are not sufficiently atomized or are not completely in contact with air, which causes incomplete combustion and emission of harmful exhaust gases.

In addition, since the fuel pump supplies much more fuel than actually needed, the possibility of incomplete combustion and emission of harmful gases in the engine is higher.

Therefore, there is a need for a technique capable of solving the problems of the prior art.

Korean Patent Publication No. 10-2001-0096616 (published on November 08, 2001)

The purpose of the present invention is to reduce the amount of soot and particulate foreign matter generated in the fuel combustion process, and to reduce the generation of noise during the fuel combustion process, to set the temperature of the fuel to a certain temperature for complete combustion of the fuel. It is to provide a fuel supply device including a temperature maintaining structure that can be maintained as a key.

A fuel supply device according to one aspect of the present invention for achieving this object includes a body cylinder portion having a cylinder structure in which a space for cooling water to flow is formed; A fuel flow piping structure is formed in which the fuel flows from one side of the main cylinder part into the main cylinder part and is discharged to the other side of the main cylinder part to flow, and performs heat exchange with the cooling water filled in the main cylinder part to discharge to the other side of the main cylinder part A fuel flow unit that maintains the temperature of the fuel within a certain range; a cooling water injection nozzle mounted on one end of a side surface of the body cylinder unit and injecting cooling water having a predetermined temperature into the body cylinder unit; and a cooling water discharge nozzle mounted on the other end of the side surface of the body cylinder unit and configured to discharge cooling water that has undergone heat exchange after being injected into the body cylinder unit to the outside.

In one embodiment of the present invention, the main cylinder part is a first cylinder of a cylinder structure in which an inlet nozzle of a fuel flow part is mounted at one end, a space for cooling water to flow is formed therein, and the other side is open. ; A second cylinder having a cylinder structure in which a discharge nozzle of the fuel flow unit is mounted at the other end, a space for cooling water to flow is formed therein, and one side is open; and an extension cylinder having a cylindrical structure that binds the other side of the first cylinder and one side of the second cylinder in a structure in which they communicate with each other and having a structure capable of changing the separation distance between the first and second cylinders. can be

In one embodiment of the present invention, the fuel flow unit, the entry pipe portion of the pipe structure that enters the first cylinder by a predetermined length through the inlet nozzle; It is mounted between the entry pipe and the discharge pipe, and the length change pipe of the bellows corrugated pipe structure that can be changed in length by an external force; and a discharge pipe having a piping structure extending to the outside by a predetermined length to deliver the fuel delivered through the length-changing pipe to the outside through the discharge nozzle.

In this case, a concavo-convex structure for forming a vortex in the cooling water flowing along the inside of the body cylinder may be formed on the inner and outer circumferential surfaces of the bellows corrugated pipe structure of the length changing pipe part.

In addition, the fuel supply device may further include a compressed air injection unit mounted on one side of the main cylinder unit and injecting compressed air into the fuel injected through the fuel flow unit.

In one embodiment of the present invention, the fuel supply device, by changing the sliding position along the inner circumferential surface of the body cylinder portion, the capacity change piston portion of the structure that can change the volume of the inner space of the body cylinder portion; a hydraulic pressure generating space partitioned by the capacity change piston part in the inner space of the body cylinder part and changing the position of the capacity change piston part by injecting fluid from the outside or discharging the injected fluid to the outside; a hydraulic pressure increasing/decreasing nozzle unit installed in communication with the hydraulic pressure generating space and supplying fluid to the inside of the hydraulic pressure generating space or discharging the fluid to the outside; and an additional cooling water injection nozzle mounted on the capacity changing piston unit and supplying cooling water from the outside to the inside of the body cylinder unit.

In one embodiment of the present invention, on the outer circumferential surface of the fuel flow part, a plurality of first protruding structures that can be pushed and folded according to the position change of the capacity changing piston part are formed spaced apart at regular intervals, and the inner circumferential surface of the body cylinder part In this case, a plurality of second protruding structures, which can be pushed and folded according to the change in the position of the capacity changing piston unit, are formed spaced apart at regular intervals, and the first protruding structure and the second protruding structure flow along the inside of the fuel flow unit It is possible to increase the surface area of heat exchange between the fuel being heated and the cooling water flowing inside the main cylinder part.

In one embodiment of the present invention, a first temperature detection unit mounted on the cooling water injection nozzle to detect the temperature of the injected cooling water and then transmitting the detected data to the control unit; a second temperature detection unit installed in the cooling water discharge nozzle to detect the temperature of the discharged cooling water and then transmitting the detected data to the control unit; a third temperature detection unit mounted on one side of the body cylinder unit, detecting the temperature of the fuel injected through the fuel flow unit, and then transmitting the detected data to the control unit; a fourth temperature detection unit mounted on the other side of the body cylinder unit, detecting the temperature of the fuel discharged through the fuel flow unit, and then transmitting the detected data to the control unit; And based on the data detected from the first temperature detection unit, the second temperature detection unit, the third temperature detection unit, and the fourth temperature detection unit, the position of the capacity change piston unit is determined by injecting or discharging fluid into the hydraulic pressure generating space through the hydraulic pressure increasing/decreasing nozzle unit. By changing, it may be a configuration including a control unit for changing the heat exchange efficiency.

As described above, according to the fuel supply device of the present invention, by having a main cylinder part, a fuel flow part, a cooling water injection nozzle and a cooling water discharge nozzle of a specific structure, the amount of soot and particulate foreign matter generated in the fuel combustion process is reduced. It is possible to provide a fuel supply device including a temperature maintaining structure capable of maintaining the temperature of the fuel at a constant temperature for complete combustion of the fuel to reduce noise generation during the fuel combustion process. have.

In addition, according to the fuel supply device of the present invention, by having a first cylinder, a second cylinder, an extension cylinder and a length changing pipe having a specific structure, by changing the length of the main cylinder part according to the temperature state of the fuel to be cooled, It is possible to provide a fuel supply device capable of changing the heat exchange efficiency of the fuel and the coolant according to the temperature of the fuel, and consequently maintaining the temperature of the fuel discharged after performing the heat exchange within a specific range.

In addition, according to the fuel supply device of the present invention, by having a compressed air injection unit performing a specific role, and forming a concave-convex structure of a specific structure on the inner and outer circumferential surfaces of the bellows corrugated pipe structure of the length change pipe portion, through the length change pipe portion By forming a vortex in the flowing fuel, it is possible to induce the compressed air injected into the fuel to be evenly mixed inside the fuel, and at the same time, a vortex can be formed in the flow of the cooling water along the outer circumferential surface of the length-changing piping, resulting in heat exchange Since efficiency can be maximized, it is possible to provide a fuel supply device including a temperature maintaining structure capable of stably maintaining the temperature of fuel in a certain temperature range.

In addition, according to the fuel supply device of the present invention, the volume of the coolant flow space inside the main cylinder part is adjusted by the operator's intention by having a specific structure of the capacity changing piston part, the hydraulic pressure generating space, the oil pressure increasing/decreasing nozzle part, and the additional coolant injection nozzle. It can be easily changed according to the desired heat exchange efficiency, and it is possible to configure a fuel supply device having heat exchange efficiency desired by the operator, so that it can be adjusted and installed to have appropriate heat exchange efficiency in various vehicles having different specifications, so that it has a structure that can be applied universally. A fuel supply system may be provided.

In addition, according to the fuel supply device of the present invention, the volume of the coolant flow space inside the main body cylinder is easily changed according to the operator's intention by providing a fuel flow part having a first protrusion structure and a second protrusion structure of a specific structure. At the same time, it is possible to adjust the folded state of the first protrusion structure and the second protrusion structure that increase the heat exchange surface area, so that a fuel supply device having a heat exchange efficiency desired by the operator can be configured, and heat exchange suitable for various vehicles having different specifications It can be adjusted and installed to have efficiency, so it is possible to provide a fuel supply device with a structure that can be applied universally.

In addition, according to the fuel supply device of the present invention, by providing a first temperature detection unit, a second temperature detection unit, a third temperature detection unit, a fourth temperature detection unit, and a control unit that perform specific roles, depending on the temperature range of the fuel desired by the operator. It is possible to change the cooling efficiency of the fuel supply device, and as a result, it is possible to provide a fuel supply device capable of maintaining the temperature of fuel discharged after performing heat exchange within a specific range.

1 is a cross-sectional view showing a fuel supply device according to the prior art.
2 is a photograph showing a fuel supply device according to an embodiment of the present invention.
3 is a perspective view showing a fuel supply device according to an embodiment of the present invention.
4 is a plan view showing the fuel supply device shown in FIG. 3;
FIG. 5 is a cross-sectional view along line A-A' of FIG. 4 .
6 is a cross-sectional view showing a fuel supply device according to another embodiment of the present invention.
FIG. 7 is a cross-sectional view illustrating a state in which the length of the body cylinder portion is changed using an extension cylinder of the fuel supply device shown in FIG. 6;
8 is a cross-sectional view showing a fuel supply device according to another embodiment of the present invention.
FIG. 9 is a cross-sectional view showing how the volume of the inner space of the body cylinder part is changed using the capacity changing piston part of the fuel supply device shown in FIG. 8 .
10 is a control configuration diagram showing a control flow of a fuel supply device according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to this, the terms or words used in this specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

Throughout this specification, when a member is said to be located “on” another member, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. Throughout this specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

2 is a photograph showing a fuel supply device according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a fuel supply device according to an embodiment of the present invention.

Referring to these drawings, the fuel supply device 100 according to the present embodiment includes a body cylinder part 110, a fuel flow part 120, a coolant injection nozzle 131 and a coolant discharge nozzle 132 having a specific structure. By providing it, it is possible to reduce the amount of soot and particulate foreign matter generated during the fuel combustion process, and to reduce the generation of noise during the fuel combustion process, maintaining the temperature of the fuel at a constant temperature for complete combustion of the fuel. It is possible to provide a fuel supply device including a temperature maintaining structure that can be.

Hereinafter, each component constituting the fuel supply device 100 according to the present embodiment will be described in detail with reference to the drawings.

FIG. 4 is a plan view illustrating the fuel supply device shown in FIG. 3 , and FIG. 5 is a cross-sectional view taken along the line AA′ of FIG. 4 .

Referring to these drawings together with FIGS. 2 and 3 , the body cylinder unit 110 according to the present embodiment may have a cylinder structure in which a space through which cooling water flows is formed.

The fuel flow unit 120 is drawn into the body cylinder unit 110 from one side of the body cylinder unit 110 and discharged to the other side of the body cylinder unit 110 to form a fuel flow piping structure, The temperature of the fuel discharged to the other side of the body cylinder unit 110 may be maintained within a certain range by performing heat exchange with the coolant filled inside the body cylinder unit 110 .

The cooling water injection nozzle 131 is mounted on one end of the side surface of the body cylinder unit 110 and may inject cooling water having a predetermined temperature into the body cylinder unit 110 .

In addition, the cooling water discharge nozzle 132 is mounted on the other end of the side of the main cylinder unit 110 and can discharge the cooling water injected into the main cylinder unit 110 and subjected to heat exchange to the outside.

6 is a cross-sectional view showing a fuel supply device according to another embodiment of the present invention, and FIG. 7 shows a state in which the length of the body cylinder portion is changed using an extension cylinder of the fuel supply device shown in FIG. A cross section is shown.

Referring to these drawings, the body cylinder portion 110 of the fuel supply device 100 according to the present embodiment includes a first cylinder 111, a second cylinder 112, and an extension cylinder 113 having a specific structure. can be config.

Specifically, the first cylinder 111 of the body cylinder unit 110 has a configuration in which an inlet nozzle of the fuel flow unit 120 is mounted at one end, and a space through which coolant can flow is formed therein. It may have a cylindrical structure with open sides.

The second cylinder 112 of the body cylinder unit 110 has a configuration in which the discharge nozzle of the fuel flow unit 120 is mounted on the other end, and a space through which coolant can flow is formed therein, and one side is open. may have a cylindrical structure.

In addition, the extension cylinder 113 of the body cylinder unit 110 has a cylindrical structure that binds the other side of the first cylinder 111 and the one side of the second cylinder 112 in communication with each other, and the first cylinder The separation distance between (111) and the second cylinder (112) can be changed.

In this case, according to the present embodiment, the temperature of the fuel to be cooled is provided by having the first cylinder 111, the second cylinder 112, the extension cylinder 113, and the length changing pipe part 122 of a specific structure. By changing the length of the body cylinder part 110 according to the state, the heat exchange efficiency of the fuel and coolant can be changed according to the temperature state of the fuel, and as a result, the temperature of the fuel discharged after performing the heat exchange can be maintained within a specific range A fuel supply system may be provided.

On the other hand, the fuel flow unit 120 according to this embodiment is a structure that can change the length entering the inside of the body cylinder unit 110 according to the user's intention, and the entry pipe 121 of a specific structure, length change It may be configured to include a pipe part 122 and a discharge pipe part 123.

Specifically, the entry pipe part 121 of the fuel flow part 120 is a pipe structure that enters the inside of the first cylinder 111 by a predetermined length through the inlet nozzle, and the discharge pipe part 123 of the fuel flow part 120 ) is a pipe structure extending to the outside by a predetermined length to deliver the fuel delivered through the length-changing pipe 122 to the outside through the discharge nozzle. In addition, the length-changing piping 122 is a configuration mounted between the entry piping 121 and the discharge piping 123, and is preferably a bellows corrugated piping structure whose length can be changed by an external force.

At this time, as shown in FIG. 6, on the inner and outer circumferential surfaces of the bellows corrugated pipe structure of the length changing pipe part 122, a concavo-convex structure forming a vortex in the cooling water flowing along the inside of the body cylinder part 110 is formed. can

In addition, the fuel supply device 100 according to this embodiment may be equipped with a compressed air injection unit 140 on one side of the body cylinder unit 110. At this time, the compressed air injection unit 140 may inject compressed air into the fuel injected through the fuel flow unit 120 .

In this case, according to the present embodiment, by having a compressed air injection unit 140 performing a specific role, and forming a concave-convex structure of a specific structure on the inner and outer circumferential surfaces of the bellows corrugated pipe structure of the length changing pipe 122. , By forming a vortex in the fuel flowing through the length-changing pipe 122, the compressed air injected into the fuel can be induced to be evenly mixed inside the fuel, and at the same time, the outer circumferential surface of the length-changing pipe 122 It is possible to provide a fuel supply device including a temperature maintaining structure capable of forming a vortex in the flow of cooling water along the flow, maximizing heat exchange efficiency, and stably maintaining the temperature of the fuel within a certain temperature range.

8 is a cross-sectional view showing a fuel supply device according to another embodiment of the present invention, and in FIG. 9, the volume of the internal space of the body cylinder part is changed using the capacity changing piston part of the fuel supply device shown in FIG. 8 A cross-sectional view showing how to do is shown.

Referring to these drawings, the fuel supply device 100 according to the present embodiment may be configured to further include a capacity changing piston unit 151 capable of changing the volume of the inner space of the body cylinder unit 110.

Specifically, as shown in FIG. 9 , the displacement change piston unit 151 changes the sliding position along the inner circumferential surface of the body cylinder unit 110, thereby changing the volume of the internal space of the body cylinder unit 110. may be a rescue.

At this time, the hydraulic pressure generation space 152 partitioned by the capacity change piston part 151 in the inner space of the body cylinder part 110 is a displacement change piston part ( 151) can be changed. To this end, a hydraulic pressure increasing/decreasing nozzle part 153 may be mounted on one side of the body cylinder part 110 in a structure communicating with the hydraulic pressure generating space 152. The hydraulic pressure increasing/decreasing nozzle unit 153 can easily and stably change the position of the capacity changing piston unit 151 by supplying fluid to the inside of the hydraulic pressure generating space 152 or discharging it to the outside.

In addition, it is preferable that an additional cooling water injection nozzle 154 for supplying cooling water from the outside to the inside of the body cylinder unit 110 is mounted on the capacity changing piston unit 151 according to the present embodiment.

In this case, according to the present embodiment, the body cylinder part ( 110) The volume of the internal coolant flow space can be easily changed according to the operator's intention, so that the operator can configure a fuel supply device with the desired heat exchange efficiency, so that the heat exchange efficiency is appropriate for various vehicles with different specifications. and can be installed, it is possible to provide a fuel supply device with a structure that can be applied universally.

On the other hand, as shown in FIG. 8, a first protruding structure 161 of a specific structure is formed on the outer circumferential surface of the fuel flow unit 120, and a second protruding structure of a specific structure ( 162) can be formed.

Specifically, the first protruding structure 161 is preferably disposed on the outer circumferential surface of the fuel flow part 120 at a predetermined interval, and can be pushed and folded according to the position change of the capacity changing piston part 151. do. In addition, a plurality of second protrusion structures 162 are disposed on the inner circumferential surface of the body cylinder part 110 at regular intervals, and preferably have a structure that can be pushed and folded according to the position change of the capacity change piston part 151. .

More specifically, the first protruding structure 161 and the second protruding structure 162 according to the present embodiment, the fuel flowing along the inside of the fuel flow unit 120 and the fuel flowing inside the main cylinder portion 110 The heat exchange surface area with the cooling water can be increased.

In this case, according to the present embodiment, the coolant flow space inside the body cylinder part 110 is provided by providing the fuel flow part 120 in which the first protrusion structure 161 and the second protrusion structure 162 of a specific structure are formed. The volume of the fuel can be easily changed according to the operator's intention and at the same time, the folded state of the first protrusion structure 161 and the second protrusion structure 162, which increase the heat exchange surface area, can be adjusted to supply fuel with the heat exchange efficiency desired by the operator. The device can be configured, and can be adjusted and installed to have appropriate heat exchange efficiency in various vehicles having different specifications, thereby providing a fuel supply device with a structure that can be universally applied.

10 is a control configuration diagram showing a control flow of a fuel supply device according to another embodiment of the present invention.

Referring to FIG. 10 together with FIGS. 7 and 9 , the fuel supply device 100 according to the present embodiment includes a first temperature detection unit 171, a second temperature detection unit 172, and a third temperature detection unit performing specific roles. 173, a fourth temperature detection unit 174, and a control unit 175 may be included.

Specifically, the first temperature detector 171 according to the present embodiment may be mounted on the coolant injection nozzle 131 to detect the temperature of the injected coolant, and then transmit the detected data to the controller 175 . In addition, the second temperature detector 172 may be mounted on the coolant discharge nozzle 132 to detect the temperature of the discharged coolant, and then transmit the detected data to the controller 175 .

The third temperature detection unit 173 according to the present embodiment is configured to be mounted on one side of the body cylinder unit 110, detects the temperature of the fuel injected through the fuel flow unit 120, and then returns the detected data. It can be transmitted to the control unit 175. In addition, the fourth temperature detection unit 174 is configured to be mounted on the other side of the body cylinder unit 110, detects the temperature of the fuel discharged through the fuel flow unit 120, and then transmits the detected data to the control unit 175. ) can be passed on.

At this time, the control unit 175 according to the present embodiment, based on the data detected by the first temperature detection unit 171, the second temperature detection unit 172, the third temperature detection unit 173 and the fourth temperature detection unit 174 In this way, the heat exchange efficiency can be changed by changing the position of the capacity changing piston unit 151 by injecting or discharging fluid into the hydraulic pressure generating space 152 through the hydraulic pressure increasing/decreasing nozzle unit 153.

In this case, according to the present embodiment, the first temperature detection unit 171, the second temperature detection unit 172, the third temperature detection unit 173, the fourth temperature detection unit 174, and the control unit 175 perform specific roles. By providing, the cooling efficiency of the fuel supply device can be changed according to the temperature range of the fuel desired by the operator, and as a result, the fuel supply device capable of maintaining the temperature of the discharged fuel within a specific range after heat exchange can be provided. .

In the detailed description of the present invention above, only specific embodiments have been described accordingly. However, it should be understood that the present invention is not limited to the special forms mentioned in the detailed description, but rather it is understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims. It should be.

That is, the present invention is not limited to the specific embodiments and descriptions described above, and anyone having ordinary knowledge in the technical field to which the present invention belongs can make various modifications without departing from the gist of the present invention claimed in the claims. is possible, and such modifications fall within the protection scope of the present invention.

100: fuel supply device
110: body cylinder part
111: first cylinder
112: second cylinder
113: extension cylinder
120: fuel flow unit
121: entry piping
122: length change piping
123: discharge piping
131: cooling water injection nozzle
132: cooling water discharge nozzle
140: compressed air inlet
151: capacity change piston unit
152: hydraulic pressure generating space
153: hydraulic pressure increasing nozzle part
153a: hydraulic injection nozzle
153b: hydraulic discharge nozzle
154: additional coolant injection nozzle
161: first projection structure
162: second projection structure
171: first temperature detection unit
172: second temperature detection unit
173: third temperature detection unit
174: fourth temperature detection unit
175: control unit

Claims (5)

a body cylinder portion 110 having a cylinder structure in which a space for cooling water to flow is formed;
A fuel flow piping structure is formed in which the fuel flows from one side of the body cylinder unit 110 to the inside of the body cylinder unit 110 and is discharged to the other side of the body cylinder unit 110 to flow, and filling the inside of the body cylinder unit 110 A fuel flow unit 120 that maintains the temperature of the fuel discharged to the other side of the body cylinder unit 110 within a certain range by performing heat exchange with the cooled cooling water;
a cooling water injection nozzle 131 mounted on one end of a side surface of the body cylinder unit 110 and injecting cooling water having a predetermined temperature into the body cylinder unit 110; and
a cooling water discharge nozzle 132 mounted on the other end of the side surface of the body cylinder unit 110 and discharging cooling water injected into the body cylinder unit 110 and subjected to heat exchange to the outside;
A fuel supply device comprising a.
According to claim 1,
The fuel supply device,
A compressed air injection unit 140 mounted on one side of the body cylinder unit 110 and injecting compressed air into the fuel injected through the fuel flow unit 120;
Including more,
The body cylinder portion 110,
A first cylinder 111 having a cylinder structure in which an inlet nozzle of the fuel flow unit 120 is mounted at one end, a space in which cooling water can flow is formed, and the other side is open;
a second cylinder 112 having a cylindrical structure in which a discharge nozzle of the fuel flow unit 120 is mounted at the other end, a space in which cooling water can flow is formed, and one side is open; and
It is a cylindrical structure that binds the other side of the first cylinder 111 and one side of the second cylinder 112 in a structure that communicates with each other, and the separation distance between the first cylinder 111 and the second cylinder 112 can be changed. An extension cylinder 113 of a structure that can;
including,
The fuel flow unit 120,
An entry pipe part 121 of a pipe structure that enters the first cylinder 111 by a predetermined length through the inlet nozzle;
It is mounted between the entry pipe 121 and the discharge pipe 123, and the length change pipe 122 of the bellows corrugated pipe structure that can be changed in length by an external force; and
a discharge pipe part 123 having a pipe structure extending to the outside by a predetermined length to deliver the fuel delivered through the length-changing pipe part 122 to the outside through the discharge nozzle;
including,
On the inner and outer circumferential surfaces of the bellows corrugated piping structure of the length changing pipe part 122, a concave-convex structure is formed to form a vortex in the cooling water flowing along the inside of the body cylinder part 110 Fuel supply device.
According to claim 1,
The fuel supply device,
a capacity change piston unit 151 having a structure capable of changing the volume of the internal space of the body cylinder unit 110 by changing the sliding position along the inner circumferential surface of the body cylinder unit 110;
The internal space of the body cylinder part 110 is partitioned by the capacity change piston part 151, and the hydraulic pressure changes the position of the displacement change piston part 151 by injecting fluid from the outside or discharging the injected fluid to the outside. generation space 152;
a hydraulic pressure increasing/decreasing nozzle unit 153 installed in communication with the hydraulic pressure generating space 152 and supplying fluid to the inside of the hydraulic pressure generating space 152 or discharging the fluid to the outside; and
an additional cooling water injection nozzle 154 mounted on the capacity changing piston unit 151 and supplying cooling water from the outside to the inside of the body cylinder unit 110;
A fuel supply device comprising a.
According to claim 3,
On the outer circumferential surface of the fuel flow part 120, a plurality of first protruding structures 161 having a structure that can be pushed and folded according to a change in the position of the capacity changing piston part 151 are spaced apart at regular intervals,
On the inner circumferential surface of the body cylinder part 110, a plurality of second protrusion structures 162 having a structure that can be pushed and folded according to a change in the position of the capacity changing piston part 151 are spaced apart at regular intervals,
The first protruding structure 161 and the second protruding structure 162 increase the heat exchange surface area between the fuel flowing along the inside of the fuel flow part 120 and the cooling water flowing inside the main cylinder part 110. Fuel supply device, characterized in that.
According to claim 3,
a first temperature detection unit 171 mounted on the cooling water injection nozzle 131 to detect the temperature of the injected cooling water and then transmitting the detected data to the control unit 175;
a second temperature detection unit 172 mounted on the cooling water discharge nozzle 132 to detect the temperature of the discharged cooling water and then transmitting the detected data to the control unit 175;
A third temperature detection unit 173 mounted on one side of the body cylinder unit 110, detecting the temperature of the fuel injected through the fuel flow unit 120, and then transmitting the detected data to the control unit 175;
A fourth temperature detection unit 174 mounted on the other side of the body cylinder unit 110, detecting the temperature of the fuel discharged through the fuel flow unit 120, and then transmitting the detected data to the control unit 175; and
Based on the data detected from the first temperature detection unit 171, the second temperature detection unit 172, the third temperature detection unit 173, and the fourth temperature detection unit 174, the hydraulic pressure increases and decreases through the nozzle unit 153. a control unit 175 that changes the heat exchange efficiency by changing the position of the capacity changing piston unit 151 by injecting or discharging fluid into the generating space 152;
A fuel supply device comprising a.

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