KR20110063138A - Engine for hybrid electric vehicle - Google Patents

Abstract

PURPOSE: An engine for a hybrid electric vehicle is provided to increase running distance since battery is charged by the operation of an engine regardless of the running condition of the vehicle. CONSTITUTION: An engine(100) for a hybrid electric vehicle comprises an air manifold(200), a first valve unit(210) and an air tank(230). The air manifold is connected to one intake port(115) for each cylinder through each air port(201). The first valve unit is operated by a corresponding cam shaft(125), supplies compressed air from the air manifold to a combustion chamber through the air port or moves air pressure to the air manifold through the air port. If the first valve unit does not operate, the first valve unit prevents the backflow of air pressure to the combustion chamber using one-way function. The air tank supplies the compressed air to the combustion chamber according to the operation of the first valve unit or stores the compressed air of the combustion chamber.

Description

ENGINE FOR HYBRID ELECTRIC VEHICLE}

The present invention relates to an engine for a hybrid electric vehicle, and more particularly, by using the surplus energy during deceleration and inertia of the vehicle to drive the engine to function as an air pump and stored as compressed air in a separate air tank. In addition, the present invention relates to an engine for a hybrid electric vehicle that can increase the regenerative energy efficiency by allowing the generator to produce electric energy by using the compressed air when the battery charge is insufficient.

In general, a hybrid vehicle means an efficient combination of two or more different power sources to drive a vehicle. In most cases, a motor and a generator for driving and generating electric power and an engine powered by fuel are used. It is called a hybrid electric vehicle as a system composed of the back.

As an example of such a hybrid electric vehicle, as shown in FIG. 1, in the case of a plug-in hybrid electric vehicle PHEV, the generator 1 is driven by using power from the engine E to charge the battery 3, It is composed of a mechanism for transmitting the driving force to the drive shaft (7) by driving the motor generator (5) using the power of the battery (3).

At this time, the vehicle is driven by the driving force by the motor generator 5, the engine (E) is a system responsible for power generation only.

That is, in the plug-in hybrid electric vehicle, when the vehicle is decelerated or inerted, the clutch 9 which enables power transmission between the engine E and the drive system is operated, so that the energy remaining by the decelerated or inertia driven from the engine E is reduced. The generator 1 is driven to charge the battery 3, and under other conditions, the driving force is generated by driving the engine E by fuel supply from the fuel tank 11 with the clutch 9 turned off. It has a mechanism for charging the battery 3 by driving the generator 1.

However, in the case of the engine applied to the plug-in hybrid electric vehicle, the driving force is applied to the generator 1 by the mechanical energy remaining by the deceleration or inertia travel from the drive system while the clutch 9 is operated when the vehicle is decelerated or inertia travel. There was no function of the power transmission body to charge the battery 3 by transferring it.

As described above, in the conventional plug-in hybrid electric vehicle, only electric energy is stored as regenerative energy, but in order to maximize energy regeneration, introduction of an engine having a new system is required.

Therefore, the present invention has been invented to solve the above problems, and the problem to be solved by the present invention is to operate the engine by using the surplus energy during deceleration and inertia of the vehicle to function as an air pump Compressed air is stored in a separate air tank, and when the battery charge is insufficient, a hybrid electric vehicle that can further increase the regenerative energy efficiency by driving the engine to produce electrical energy by using the compressed air. To provide an engine.

In the engine for a hybrid electric vehicle according to the embodiment of the present invention for achieving the above object, the intake and exhaust valves are installed in a plurality of intake and exhaust valves for each cylinder respectively formed on the cylinder head, respectively By sequentially operating by each camshaft, the fresh air is supplied from the intake manifold through the intake port, mixed with the fuel injected from the injector inside the combustion chamber to explode, and the exhaust gas is connected to the exhaust manifold. An engine for a hybrid electric vehicle configured to be discharged through the air, comprising: an air manifold connected to one air inlet and each air port among the air inlets for each cylinder; It is installed in each inlet connected to each of the air port, and is operated by the corresponding cam shaft to supply compressed air to the combustion chamber from the air manifold through each air, or to generate the air pressure generated by the operation of the piston inside the combustion chamber An air valve unit having a one-way valve function to move to the air manifold through each air port, and to prevent backflow of air pressure to the combustion chamber when it is not operated; And an air tank connected to the air manifold and an air pipe to supply compressed air to the respective combustion chambers according to the operation of the respective valve units for the air, or to store the compressed air generated from each combustion chamber. .

Each intake port comprises a fuel intake port connected to each intake port, and an air intake port connected to each air port.

The air valve unit has an auxiliary valve seat formed between the inlet passage connected to the air and the combustion chamber and the inlet passage at the same time as the inlet end formed in the cylinder head. An air intake port comprising an outlet passage; And a valve head and a stem, one side of the stem acts on an auxiliary valve seat on the air inlet to open and close an inlet passage and an outlet passage, and a one-way valve to prevent a reverse flow of air pressure flowing from the air tank. It characterized in that the auxiliary valve head that functions as consisting of an air valve that is integrally configured.

The outlet passage is characterized in that formed on the inner side of the cylinder head on the basis of the air valve.

The outlet passages are formed on both sides of the cylinder head based on the air valve, respectively.

Wherein each intake port is connected to each intake port, and includes two fuel intake ports respectively formed at both sides of the cylinder head, and an air intake port formed at the cylinder head between each fuel intake port and connected to the respective air ports. It features.

Each injector is installed to be connected to each intake port.

According to the engine for a hybrid electric vehicle according to the embodiment of the present invention as described above, by operating the engine by using the surplus energy during deceleration and inertia of the vehicle to function as an air pump to compressed air in a separate air tank When the battery is insufficient, and the battery charge is insufficient, by driving the engine using the compressed air to generate electrical energy from the generator has the effect of further increasing the regenerative energy efficiency.

In addition, the engine for the hybrid electric vehicle according to the embodiment of the present invention increases the efficiency of regenerative energy, so that the battery can be charged at all times by operating the engine regardless of the vehicle driving conditions, thereby increasing the driving distance and reducing the battery capacity. It also has the effect of reducing the overall weight of the vehicle.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, which can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.

2 is a configuration diagram of a vehicle driving system to which an engine for a hybrid electric vehicle according to an embodiment of the present invention is applied, FIG. 3 is a configuration diagram of an engine for a hybrid electric vehicle according to an embodiment of the present invention, and FIG. Figure 5 is a cross-sectional view of the valve unit for the air according to the embodiment of, Figure 5 is a step-by-step operating state of the valve unit for the airport according to an embodiment of the present invention.

Referring to the drawings, the engine 100 for a hybrid electric vehicle according to an exemplary embodiment of the present invention is applied to a plug-in hybrid electric vehicle (PHEV).

As shown in FIG. 2, the plug-in hybrid electric vehicle basically drives the generator 101 by using power from the engine 100 to charge the battery 103 and uses the power of the battery 103. It consists of a mechanism for driving the motor generator 105 to transfer the driving force to the drive shaft 107.

In addition, when the vehicle is decelerated or inerted, the clutch 109 which enables power transmission between the engine 100 and the driving system is operated so that energy remaining by the decelerated or inertia driven from the engine 100 drives the generator 101. To charge the battery 103, and under other conditions, the driving force is generated by driving the engine 100 by fuel supply from the fuel tank 111 with the clutch 109 turned off. It has a mechanism for charging the battery 103 by driving.

Here, the engine 100 for a hybrid electric vehicle according to an exemplary embodiment of the present invention, by operating the engine 100 by using the surplus energy during deceleration and inertia of the vehicle to function as an air pump to separate Regenerative energy efficiency is stored in the air tank 230 as compressed air, and when the amount of charge of the battery 103 is insufficient, the engine 100 is driven using the compressed air to produce electrical energy in the generator 101. To make it even higher.

To this end, the engine 100 for a hybrid electric vehicle according to an exemplary embodiment of the present invention, as shown in Figure 3, basically, a plurality of intake holes for each cylinder formed on each cylinder head 113 ( Each of the intake and exhaust valves IV and EV is provided by the cam shafts 125 and 127 in a state where the intake and exhaust valves IV and EV are installed in the 115 and the exhaust port 119, respectively. By sequentially operating, after receiving fresh air from the intake manifold 129 through the intake port 131, the mixture is exploded after mixing with the fuel injected from the injector 133 in the combustion chamber 139, and the exhaust gas is exhaust manifold ( It is configured to be discharged through the exhaust port 137 connected to 135.

In this case, the injector 133 may be installed to be connected to each of the intake ports 131.

Hybrid electric vehicle engine 100 according to an embodiment of the present invention having the configuration as described above by using the surplus energy, the air manifold 200, the valve unit 210 for the air configured to increase the regenerative energy efficiency , And an air tank 230.

First, the air manifold 200 is connected to one inlet port 115 and each air port 201 of the inlet port 115 for each cylinder.

Here, each intake port 115 preferably includes a fuel intake port 116 connected to each intake port 131, and an air intake port 117 connected to each air port 201.

In this embodiment, the air valve unit 210 is installed in each air inlet 117 connected to each of the air ports 201.

The air valve unit 210 is operated by the cam shaft 125 to supply compressed air from the air manifold 200 to the combustion chamber 139 through the respective air ports 201, or the combustion chamber 139. The air pressure generated by the operation of the piston (not shown) therein is moved to the air manifold 200 through the respective air ports 201, and when it is not operated, the air pressure flows back to the combustion chamber 139. It has a one-way valve function to prevent that.

Here, the air valve unit 210, as shown in Figure 4, each of the air inlet 117 and the air inlet 117 forming the inlet passage 213 and the outlet passage 217, Consists of an air valve (AV) is mounted on, and described in more detail for each configuration as follows.

First, each air inlet 117 is formed in the inlet end 211 formed in the cylinder head 113, the inlet passage 213 connected to the air port 201, the combustion chamber 139 and the inlet The outlet passage 217 which connects the passage 213 and forms the auxiliary valve seat 215 between the inlet passage 213 and the inlet passage 213.

Here, the outlet passage 217 is preferably formed on one side of the cylinder head 113 on the basis of the air valve (A.V).

And the air valve (AV) is composed of a valve head 221 and the stem 223, one side on the stem 223 acts on the auxiliary valve seat 215 on the air inlet 117 to the inlet passage 213 ) And the outlet passage 217 is opened and closed, and an auxiliary valve head 225 having a one-way valve function is prevented to prevent a backflow of the air pressure flowing from the air tank 230.

The air valve A.V is reciprocated vertically by the cam shaft 125 to selectively open and close the inlet passage 213 and the outlet passage 217 through the auxiliary valve head 225.

Here, in the air valve unit 210 having the above configuration, as shown in (S1) of FIG. 5, when the air valve AV is not operated, the auxiliary valve head 225 is the auxiliary In close contact with the valve seat 215, the inlet passage 213 and the outlet passage 217 are maintained in a closed state from the inlet passage 213 through the outlet passage 217 into the combustion chamber 139 into the air tank ( The compressed air supplied from 230 is prevented from flowing back.

Accordingly, the compressed air supplied from the air port 201 is introduced into the combustion chamber 139, or the compressed air generated from the combustion chamber 139 is prevented from flowing out, and the compressed air is prevented from flowing back.

On the other hand, when the air valve (AV) is operating, as shown in (S2) of Figure 5, the auxiliary valve head 225 together with the air valve (AV) to the lower portion of the auxiliary valve seat 215. While moving, the inlet passage 213 and the outlet passage 217 is opened and the auxiliary valve seat 225 to be connected.

Accordingly, the compressed air supplied from the air port 201 is introduced into the combustion chamber 139 through the outlet passage 217, and the compressed air generated in the combustion chamber 139 is the outlet passage 217 and the inlet. Exit to the airport 201 through the passage (213).

The air tank 230 is connected to the air manifold 200 and the air pipe 231 to supply compressed air to each combustion chamber 139 according to the operation of the valve unit 210 for each air port, Compressed air generated from each combustion chamber 139 is stored.

That is, the auxiliary valve head 225 selectively connects the inlet passage 213 and the outlet passage 217 according to the operation of the air valve AV, thereby providing the inlet passage 213 and the outlet passage 217. At the time of closing, it serves as a one-way valve to prevent the compressed air from flowing back from the fuel tank 230 to the combustion chamber 139.

Hereinafter, the operation and operation of the engine 100 for a hybrid electric vehicle according to the embodiment of the present invention configured as described above will be described in detail.

Figure 6 is a valve operation table for each mode of the engine for a hybrid electric vehicle according to an embodiment of the present invention.

First, a case in which the engine 100 for a hybrid electric vehicle configured as described above is in the charging mode will be described.

When the pressure of the compressed air stored in the air tank 230 is lower than the required pressure in the charging mode for charging the battery 103, the engine 100 is driven by using fuel, thereby charging the battery 103. To operate as a gasoline internal combustion engine.

That is, the engine 100 does not operate both the intake and exhaust valves IV and EV and the air valve AV in the explosion stroke, so that the intake port 115 and the exhaust port 119 are closed. do.

Accordingly, in the sealed combustion chamber 139, the internal mixer is ignited by the spark plug, so that an explosion occurs, the cylinder is moved, and the driving force is generated by rotating the crankshaft connected through the connecting rod.

Then, in the exhaust stroke, all of the exhaust ports 119 are opened by the operation of the respective exhaust valves EV, and as the piston is raised, the exhaust gas generated in the combustion chamber 139 is discharged to each exhaust port 137. After moving to the exhaust manifold 135 through, it is discharged to the outside of the vehicle through the exhaust system of the vehicle not shown.

After the exhaust stroke is completed, each fuel inlet 116 is opened through the intake valve IV operated by the cam shaft 125 in the intake stroke, thereby allowing the intake manifold 129 to pass through the intake port 131. The fresh air is supplied and mixed with the fuel injected from the injector 133 in the combustion chamber 139.

Then, in the compression stroke, both the intake and exhaust valves IV and EV and the air valve AV do not operate so that each of the intake ports 115 and the exhaust ports 119 are all closed. Accordingly, in the sealed combustion chamber 139, the mixer of the new and injected fuel introduced through the intake stroke is compressed.

In this case, the vehicle is in the state of climbing or constant speed driving after departure, and surplus energy is not generated from the driving system, and thus the clutch 109 is maintained in an OFF state in which it is not operated.

As described above, when the engine 100 for the hybrid electric vehicle operates as a gasoline internal combustion engine, the engine 100 is driven while repeatedly performing the above process to produce electrical energy in the generator 101. The battery 103 is charged.

On the other hand, if the pressure of the compressed air stored in the air tank 230 is more than the required pressure, the engine 100 is driven by the compressed air to operate as a compressed air engine to charge the battery 103.

That is, the engine 100 opens the air inlet 117 by the operation of the air valve A.V in the explosion stroke, thereby supplying the high pressure compressed air from the air tank 230 to the combustion chamber 139.

Then, the high pressure compressed air introduced into the combustion chamber 139 moves the cylinder not shown in the combustion chamber 139 downward, and the connecting rod connected to the cylinder rotates the crankshaft to generate driving force.

Then, in the exhaust stroke, the respective exhaust mechanisms 119 are all opened by the operation of the respective exhaust valves EV, and as the piston is lifted up, air in the combustion chamber 139 passes through the exhaust ports 137. After moving to the exhaust manifold 135, it is discharged to the outside of the vehicle through the exhaust system of the vehicle not shown.

After the exhaust stroke is completed, each fuel inlet 116 is opened through the intake valve IV operated by the cam shaft 125 in the intake stroke, thereby allowing the intake manifold 129 to pass through the intake port 131. Fresh air is fed into the combustion chamber.

At this time, the injector 133 does not inject fuel through the intake port 131.

Then, in the compression stroke, both the intake and exhaust valves IV and EV and the air valve AV do not operate so that the respective intake ports 115 and each exhaust port 119 are closed. Inside the sealed combustion chamber 139, the fresh air introduced through the intake stroke is compressed.

In this case, the vehicle is in the state of climbing or constant speed driving after departure, and surplus energy is not generated from the driving system, and thus the clutch 109 is maintained in an OFF state in which it is not operated.

As described above, when the engine 100 for the hybrid electric vehicle operates as a compressed air engine, the engine 100 is driven through the compressed air of the air tank 230 while repeating the above process. By producing electrical energy at 101, the battery 103 is charged.

Meanwhile, a case in which the engine 100 for a hybrid electric vehicle according to the exemplary embodiment of the present invention is in a pumping mode will be described.

In the pumping mode, the engine 100 is driven by surplus energy generated in the vehicle during inertia and deceleration of the vehicle, so that the engine 100 operates as an air pump engine, thereby compressing the air to the air tank 230. Will be saved as

In this case, the clutch 109 maintains the ON state operated to supply surplus energy generated from the drive system from the drive shaft 107 to the engine 100 during the inertia and deceleration driving of the vehicle.

That is, when the engine 100 operates as an air pump engine, the intake and exhaust valves IV and EV and the air valve AV do not operate in the explosion stroke, so that the intake port 115 and the exhaust port 119 are not operated. Is closed, and surplus energy rotates the crankshaft so that the piston connected to the connecting rod is lowered in the combustion chamber 139.

Then, in the exhaust stroke, all of the exhaust ports 119 are opened by the operation of the respective exhaust valves EV, and the piston is lifted by the crankshaft to draw air in the combustion chamber 139 into each exhaust port 137. After moving to the exhaust manifold 135 through the exhaust through the exhaust system of the vehicle not shown is discharged to the outside of the vehicle.

After the exhaust stroke is completed, each fuel inlet 116 is opened through the intake valve IV operated by the cam shaft 125 in the intake stroke, thereby allowing the intake manifold 129 to pass through the intake port 131. Fresh air is fed into the combustion chamber.

At this time, the injector 133 does not inject fuel through the intake port 131.

 Then, in the compression stroke, the air valve AV is operated by the camshaft 125 to open the air intake 117, and the crankshaft rotates with surplus energy supplied from the drive shaft 107 to form a cylinder. By moving, the air pressure generated by the operation of the piston in the combustion chamber 139 is moved to the air manifold 200 through the respective air ports 201.

In addition, the compressed air moved to the air manifold 200 is moved to the air tank 230 through the air line 231 and stored in the air tank 230.

As described above, when the engine 100 for the hybrid electric vehicle operates as an air pump engine, the air is supplied to the air tank 230 while repeatedly performing the same process as described above. When operating as an engine stores the necessary compressed air in the air tank (230).

Therefore, when the engine 100 for a hybrid electric vehicle according to the embodiment of the present invention configured as described above is applied, the engine 100 is driven by using the surplus energy during deceleration and inertia of the vehicle. Function to store the compressed air in a separate air tank 230, and when the charge amount of the battery 103 is insufficient to drive the engine 100 using the compressed air to produce electrical energy in the generator 101. By doing so, the regenerative energy efficiency can be further increased.

In addition, the engine 100 for a hybrid electric vehicle according to the embodiment of the present invention increases the efficiency of regenerative energy, so that the battery 103 can be charged at all times by operating the engine 100 regardless of the vehicle driving conditions. It can be enlarged and the battery capacity can be reduced to reduce the overall weight of the vehicle.

7 is a cross-sectional view of a valve unit for an air port according to another embodiment of the present invention.

As shown in FIG. 7, the air valve unit 310 according to another embodiment of the present invention includes the inlet passages 313 and the outlet passages 317, which form the inlet passage 313 and the outlet passage 317. It consists of an air valve (AV) mounted to the air inlet 117, which will be described in more detail for each configuration as follows.

Each of the air inlets 117 is formed in the intake end 311 formed in the cylinder head 113, an inlet passage 313 connected to the air port 201, the combustion chamber 139, and an inlet passage ( At the same time as connecting the 313, the outlet passage 313 is formed with an outlet passage 317 to form an auxiliary valve seat 315.

And the air valve (AV) is composed of a valve head 321 and the stem 323, one side on the stem 323 acts on the auxiliary valve seat 315 on the air inlet 117 to the inlet passage 313 ) And the auxiliary valve head 325 for opening and closing the outlet passage 317 is integrally formed.

The air valve A.V reciprocates up and down by the cam shaft 125 to selectively open and close the inlet passage 313 and the outlet passage 317 through the auxiliary valve head 325.

Here, the outlet passage 317 is preferably formed on both sides of the inside of the cylinder head 113 based on the air valve (A.V).

However, in describing the configuration of the airport valve unit 310 according to another embodiment of the present invention, the engine 100 for a hybrid electric vehicle to which the airport valve unit 310 is applied is the same as described above. Therefore, detailed description of the configuration will be omitted.

8 is a view showing the configuration of the cylinder head of the engine for a hybrid electric vehicle according to another embodiment of the present invention.

However, in describing the cylinder head 413 of the engine for hybrid electric vehicle 100 according to another embodiment of the present invention, the same components as those of the first embodiment of the present invention will be described with the same reference numerals. .

In the engine 100 for a hybrid electric vehicle according to another exemplary embodiment of the present invention, as illustrated in FIG. 8, fuel inlets 416 are formed on both sides of the cylinder head 413, respectively. It is connected to each intake port 131.

Each of these fuel intakes 416 is composed of two, it is preferable to be spaced apart on the cylinder head 113.

An air inlet 417 is formed in the cylinder head 413 between the fuel inlets 416, and is connected to the respective air ports 201.

On the other hand, each fuel inlet 416 is equipped with an intake valve IV, the air inlet 417 is equipped with an air valve unit 210, the intake valve IV and the valve unit for the air port 210 is actuated by the corresponding camshaft 425.

Since the basic configuration and operation of the hybrid electric vehicle engine 100 according to another embodiment of the present invention configured as described above are the same as described above, a detailed description of the following configuration will be omitted.

Therefore, when the engine 100 for a hybrid electric vehicle according to the embodiment of the present invention configured as described above is applied, the engine 100 is driven by using the surplus energy during deceleration and inertia of the vehicle. Function to store the compressed air in a separate air tank 230, and when the charge amount of the battery 103 is insufficient to drive the engine 100 using the compressed air to produce electrical energy in the generator 101. By doing so, the regenerative energy efficiency can be further increased.

In addition, the engine 100 for a hybrid electric vehicle according to the embodiment of the present invention increases the efficiency of regenerative energy, so that the battery 103 can be charged at all times by operating the engine 100 regardless of the vehicle driving conditions. It can be enlarged and the battery capacity can be reduced to reduce the overall weight of the vehicle.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a block diagram of a vehicle driving system to which the engine for a hybrid electric vehicle according to the prior art is applied.

2 is a configuration diagram of a vehicle driving system to which an engine for a hybrid electric vehicle according to an exemplary embodiment of the present invention is applied.

3 is a block diagram of an engine for a hybrid electric vehicle according to an embodiment of the present invention.

Figure 4 is a cross-sectional configuration of the valve unit for the air port according to an embodiment of the present invention.

5 is a step-by-step operating state diagram of the valve unit for an air according to the embodiment of the present invention.

Figure 6 is a valve operation table for each mode of the engine for a hybrid electric vehicle according to an embodiment of the present invention.

7 is a cross-sectional view of a valve unit for an air port according to another embodiment of the present invention.

8 is a view showing the configuration of the cylinder head of the engine for a hybrid electric vehicle according to another embodiment of the present invention.

Claims (7)

The intake and exhaust valves are sequentially operated by respective camshafts with intake and exhaust valves installed in a plurality of intake and exhaust ports for each cylinder respectively formed on the cylinder head, so that air is inflated from the intake manifold through the intake port. In the engine for the hybrid electric vehicle is configured to be discharged through the exhaust port connected to the exhaust manifold after exploding by mixing with the fuel injected from the injector in the combustion chamber, An air manifold connected to one inlet port and each air port of the inlet port of each cylinder; It is installed in each inlet connected to each of the air port, and is operated by the corresponding cam shaft to supply compressed air to the combustion chamber from the air manifold through each air, or to generate the air pressure generated by the operation of the piston inside the combustion chamber An air valve unit having a one-way valve function to move to the air manifold through each air port, and to prevent backflow of air pressure to the combustion chamber when it is not operated; And And an air tank connected to the air manifold and an air pipe to supply compressed air to the respective combustion chambers according to the operation of the respective valve units for the air, or to store the compressed air generated from each combustion chamber. Engines for electric vehicles. The method of claim 1, Each intake vent And a fuel intake port connected to each of the intake ports, and an air intake port connected to each of the air ports. The method of claim 1, The air valve unit is An air intake port formed in the intake end formed in the cylinder head, the inlet passage connected to the air port, and the outlet passage connecting the combustion chamber and the inlet passage and forming an auxiliary valve seat between the inlet passage. ; And It consists of a valve head and a stem, one side of the stem acts on the auxiliary valve seat on the air inlet opening and closing the inlet and outlet passages, one-way valve function to prevent the back flow of air pressure flowing from the air tank Hybrid electric vehicle engine, characterized in that made of an air valve that is integrally configured with an auxiliary valve head. The method of claim 3, wherein The outlet passage is a hybrid electric vehicle engine, characterized in that formed on the inner side of the cylinder head on the basis of the air valve. The method of claim 3, wherein The outlet passage is a hybrid electric vehicle engine, characterized in that formed on both sides of the inside of the cylinder head on the basis of the air valve. The method of claim 1, Each intake vent A hybrid fuel inlet connected to each of the intake ports, each of the two fuel inlets formed on both sides of the cylinder head, and an air intake port formed in the cylinder head between the respective fuel intake ports and connected to the respective air ports. Engines for electric vehicles. The method of claim 1, Each injector is a hybrid electric vehicle engine, characterized in that installed to be connected to each intake port.

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