KR20210103711A - Engine system for vehicle - Google Patents

Abstract

Disclosed is a vehicle engine system. A vehicle engine system, according to an embodiment of the present invention, comprises: i) an intake manifold which integrally constitutes a water-cooled intercooler in an engine; ii) a turbocharger which compresses intake air by exhaust gas and supplies the compressed intake air to the intake manifold through an electronic intake control (ETC); iii) an electric supercharger which has a turbocharger on one side of the intake manifold, is installed on a lower side of the intake manifold, selectively compresses the intake air according to an operating condition, and supplies the compressed intake air to the intake manifold through the ETC; iv) a pipe assembly having a main intake line connecting an intake air outlet side of the turbocharger and the ETC, and branching from the main intake line to be connected to an intake air suction portion and an intake air discharge portion of the electric supercharger, respectively; and ⅴ) a bypass valve which is installed on the main intake line and selectively opens and closes a path on an intake air discharge portion and the main intake line. The present invention can simplify the configuration of an intake path for supplying the intake air to the intake manifold.

Description

Vehicle engine system {ENGINE SYSTEM FOR VEHICLE}

An embodiment of the present invention relates to a gasoline engine system for a vehicle, and more particularly, to an engine system for a vehicle having a water-cooled intercooler-integrated intake manifold, a turbocharger, and an electric supercharger.

In general, an engine of a vehicle introduces external air and then mixes the introduced air and fuel at an appropriate ratio to burn the engine.

In the process of generating power by driving the engine, the desired output and combustion efficiency can be obtained only when sufficient external air is supplied for combustion. -charger) is used.

The turbocharger uses the pressure of exhaust gas discharged to the exhaust system of the engine to pressurize intake air, thereby increasing the filling efficiency of intake air flowing into the combustion chamber of the engine, and has recently been applied to gasoline engines.

However, the turbocharger causes a so-called turbo-lag phenomenon, which takes some time to reach the supercharged state from the non-supercharged state when the engine is started in the low-speed operation range. It has the problem that it is not. Accordingly, recently, a two-stage supercharging system employing a variable mechanism turbo capable of reducing turbo lag or an electric super charger having excellent responsiveness at the initial stage of start-up has been disclosed.

Meanwhile, as described above, the engine to which the turbocharger and the electric supercharger are applied includes a water-cooled intercooler for cooling the air compressed by the turbocharger and the electric supercharger.

However, in the related art, as the turbocharger, electric supercharger, and intercooler as described above are applied to improve engine performance and fuel efficiency, the layout is complicated in configuring them together with valves in a limited space, and the intake manifold is The intake path is lengthened, which can lead to engine flow loss and increased material cost.

Matters described in this background section are prepared to enhance understanding of the background of the invention, and may include matters that are not already known to those of ordinary skill in the art to which this technology belongs.

SUMMARY Embodiments of the present invention provide an engine system for a vehicle capable of simplifying a package layout and an intake path in a two-stage supercharging system having a turbocharger and an electric supercharger.

The engine system for a vehicle according to an embodiment of the present invention includes: i) an intake manifold integrally forming a water-cooled intercooler in an engine, and ii) compressed intake air by exhaust gas and the intake manifold through electronic intake control (ETC). a turbocharger supplied to the fold; an electric supercharger supplied to the manifold; and iv) a main intake line connecting the intake air outlet side of the turbocharger and the electronic intake control, branched from the main intake line, an intake intake and intake of the electric supercharger It may include a pipe assembly connected to each of the discharge units, and v) a bypass valve installed on the main intake line and selectively opening and closing the main intake line and a pipe line on the side of the intake discharge unit.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the pipe assembly includes an intake intake line branched from the main intake line and connected to an intake intake portion of the electric supercharger, and in the main intake line It may include an intake air discharge line that is branched and connected to the intake air discharge unit of the electric supercharger.

Also, in the engine system for a vehicle according to an embodiment of the present invention, the intake intake line and the intake air discharge line may be disposed along an intake air flow path of the main intake line.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the pipe assembly may integrally configure the main intake line, the intake intake line, and the intake air discharge line.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the bypass valve is installed at a connection point between the main intake line and the intake air discharge line, and selectively selects a pipeline between the main intake line and the intake air discharge line. can be opened with

In addition, in the engine system for a vehicle according to an embodiment of the present invention, a recirculation valve (RCV) may be installed in the main intake line at a front end of a branch point of the intake intake line.

Also, in the engine system for a vehicle according to an embodiment of the present invention, the recirculation valve may be connected to a front end side of the compressor of the turbocharger through a recirculation line.

Also, in the engine system for a vehicle according to an embodiment of the present invention, the recirculation valve may be installed on a mounting flange integrally provided with the main intake line.

Also, in the engine system for a vehicle according to an embodiment of the present invention, a nipple for connecting the recirculation line to the recirculation valve may be integrally provided on the mounting flange.

Also, in the engine system for a vehicle according to an embodiment of the present invention, the main intake line may be connected to an intake air outlet side of the turbocharger through a resonator.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the bypass valve closes the branch end of the intake discharge line as an elastic force of a spring, opens the main intake line, and passes through the main intake line. The intake air outlet side of the turbocharger may be connected to the electronic intake control side.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the bypass valve overcomes the elastic force of the spring by the intake discharge pressure of the electric supercharger and rotates to open the branch end of the intake discharge line, , close the front end of the branching point of the intake air discharge line in the main intake line, and connect the intake air discharge side of the electric supercharger and the electronic intake control side.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, the bypass valve includes a flap member rotatably installed on the main intake line through a rotation shaft at the branch end side of the intake discharge line, and the flap member And it may include a spring installed between the rotation shaft.

In addition, in the engine system for a vehicle according to an embodiment of the present invention, a stopper for stopping the end of the flap member may be provided at the branch end of the intake discharge line and the inner wall of the main intake line.

Also, in the engine system for a vehicle according to an embodiment of the present invention, the electronic intake control may be connected to the intercooler, and the intercooler may be connected to the intake manifold.

Embodiments of the present invention are advantageous in terms of a package layout having a two-stage supercharging device of a turbocharger and an electric supercharger, and can simplify the configuration of an intake path for supplying intake air to an intake manifold.

In addition, the effects obtainable or predicted by the embodiments of the present invention are to be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects predicted according to an embodiment of the present invention will be disclosed in the detailed description to be described later.

Since these drawings are for reference in describing an exemplary embodiment of the present invention, the technical spirit of the present invention should not be construed as being limited to the accompanying drawings.
1 is a diagram schematically illustrating an engine system for a vehicle according to an embodiment of the present invention.
2 and 3 are views illustrating a pipe assembly applied to an engine system for a vehicle according to an embodiment of the present invention.
4 is a view illustrating a mounting structure of a recirculation valve applied to an engine system for a vehicle according to an embodiment of the present invention.
5 and 6 are views illustrating a bypass valve part applied to an engine system for a vehicle according to an embodiment of the present invention.
7 and 8 are diagrams for explaining the operation of an engine system for a vehicle according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts irrelevant to the description are omitted, and the same reference numerals are given to the same or similar elements throughout the specification.

Since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the present invention is not necessarily limited to the bar shown in the drawings, and the thickness is enlarged to clearly express various parts and regions.

In addition, in the following detailed description, the reason for dividing the names of components into first, second, etc. is to distinguish them due to the same relationship, and it is not necessarily limited to the order in the following description.

Throughout the specification, when a part includes a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

In addition, terms such as ... unit, ... means, ... part, ... member described in the specification mean a unit of a comprehensive configuration that performs at least one function or operation.

1 is a diagram schematically illustrating an engine system for a vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , an engine system 100 for a vehicle according to an embodiment of the present invention may be applied to a gasoline engine vehicle. Furthermore, the engine system 100 for a vehicle according to an embodiment of the present invention may be applied to a vehicle employing a gasoline direct injection (GDI) engine that directly injects gasoline fuel into a fuel chamber.

The engine system 100 includes an engine 3 having an intake manifold 1 and an exhaust manifold (not shown). In such an engine 3, an electronic intake control 9 (Electronic Throttle Control: ETC) (hereinafter referred to as ETC for convenience) of a known art is installed on the intake manifold 1 side.

The engine system 100 for a vehicle according to an embodiment of the present invention is advantageous in terms of a package layout having a two-stage supercharging device, and has a structure that can simplify the configuration of an intake path for supplying intake air to the intake manifold 1 . .

For this purpose, the vehicle engine system 100 according to an embodiment of the present invention basically includes a turbocharger 10 , an electric supercharger 30 , a pipeline assembly 50 , and a bypass valve 80 . and this will be described for each configuration as follows.

Prior to describing the components as described above, the intake manifold 1 in the engine 3 according to the embodiment of the present invention is a known art intercooler-integrated intake manifold in which the intercooler 5 is integrally mounted. is composed of

The intercooler-integrated intake manifold 1 is integrally formed with the intercooler 5 and includes an intake manifold for supplying air discharged from the intercooler 5 to at least one cylinder. As an example, the intercooler-integrated intake manifold 1 as described above has been disclosed in Korean Patent No. 1637297 and Korean Patent Application Laid-Open No. 2017-0032527.

Here, the electronic intake control 9 described above is connected to the intercooler 5 , and the intercooler 5 is connected to the intake manifold 1 .

The intercooler 5 in the above is for cooling intake air (compressed air) compressed by the turbocharger 10 and the electric supercharger 30, which will be described further later. The intercooler 5 may flow intake air introduced through the electronic intake control 9 , cool the intake air as coolant, and supply the cooled intake air to the intake manifold of the intake manifold 1 .

The intercooler 5 as described above forms a set intake air flow path through which intake air flows and a set cooling water flow path through which cooling water flows. In the specification, a more detailed description of the configuration will be omitted.

Reference numeral 7 not described in the drawings denotes a low-temperature radiator connected to the intercooler 5 .

In the industry, the vehicle body transport direction (front and rear direction) is referred to as the T direction, the vehicle width direction is referred to as the L direction, and the height direction of the vehicle body is referred to as the H direction. However, in the embodiment of the present invention, instead of setting the LTH direction as described above as the reference direction, the above-described components will be described by setting the vehicle body forward/rearward direction, the vehicle width direction and the height direction.

Furthermore, “end (one/one end or the other/one end)” in the following may be defined as either end, and a certain part (one/one end or the other/one end) including the end. ) can also be defined as

In an embodiment of the present invention, the turbocharger 10 compresses intake air as the pressure of exhaust gas discharged from the exhaust manifold of the engine 3, and the compressed intake air is controlled by the intake manifold through electronic intake control (ETC). It is for supply to the fold (1).

The turbocharger 10 includes a turbine (not shown) rotating by exhaust gas passing through an exhaust line, and a compressor 11 driven by the turbine. The compressor 11 may compress intake air and supply the compressed intake air to the intake manifold 1 . Since the turbocharger 10 is made of a turbocharger device of a well-known technology in the art, a more detailed description will be omitted herein.

In an embodiment of the present invention, the electric supercharger 30 is selectively operated by driving a motor (not shown in the drawing) according to the driving conditions of the vehicle. It is possible to compress the intake air sucked in by the system and supply the compressed intake air to the intake manifold 1 .

The electric supercharger 30 includes an intake intake 31 and an intake discharge portion 33 . The intake intake unit 31 may suck intake air flowing by the compressor 11 of the turbocharger 10 , and the intake discharge unit 33 may discharge intake air compressed through a motor. Since the electric supercharger 30 has a configuration of a motor-driven supercharger widely known in the art, a more detailed description of the configuration will be omitted herein.

The electric supercharger 30 is installed below the intake manifold 1 with the turbocharger 10 placed on one side of the intake manifold 1 . Accordingly, in the embodiment of the present invention, the intake manifold 1 in which the intercooler 5 is integrally mounted in the engine 3, the turbocharger 10 and the electric supercharger 30 as described above are disposed close to each other. can do.

In an embodiment of the present invention, the pipe assembly 50 is a pipe connecting the intake air outlet side of the turbocharger 10 and the electronic intake control 9, branched from the pipe, and the intake intake of the electric supercharger 30 . 31 and the intake/discharge unit 33 are provided as a pipe module each having a conduit connected thereto.

2 and 3 are views illustrating a pipe assembly applied to an engine system for a vehicle according to an embodiment of the present invention.

1 to 3 , in the exemplary embodiment of the present invention, the pipe assembly 50 includes a main intake line 51 , an intake intake line 61 , and an intake discharge line 71 .

The conduit assembly 50 integrally configures the main intake line 51 , the intake intake line 61 , and the intake air discharge line 71 . For example, the main intake line 51, the intake intake line 61 and the intake discharge line 71 are cast and molded in the form of a piece of aluminum material, and these pieces are formed by vibration welding method. While being joined, the conduit assembly 50 may be configured. Such a conduit assembly 50 may be fixed to a set position in the engine room through at least one mounting bracket (B).

In the above, the main intake line 51 is provided as a conduit (pipe) connecting the intake air outlet side of the turbocharger 10 and the electronic intake control 9 . One end of the main intake line 51 is connected to the intake air outlet side of the compressor 11 of the turbocharger 10 . And the other end of the main intake line 51 is connected to the electronic intake control (9).

In this case, one end of the main intake line 51 may be connected to the intake air outlet side of the compressor 11 through the resonator 53 . The resonator 53 is provided as a resonator of a known art for improving the airflow sound of intake air supercharged by the compressor 11 of the turbocharger 10 .

The intake intake line 61 is branched from the main intake line 51 and is connected to the intake intake portion 31 of the electric supercharger 30 . The intake intake line 61 is connected to the intake intake portion 31 of the electric supercharger 30 through the flange (F).

In addition, the intake air discharge line 71 is branched from the main intake line 51 , is branched from the rear end of the intake intake line 61 branching point, and is connected to the intake air discharge unit 33 of the electric supercharger 30 . do. The intake discharge line 71 forms a branching end at the rear end of the intake intake line 61 branching point of the main intake line 51 .

Here, the above-described intake intake line 61 and intake discharge line 71 are integrally connected to the main intake line 51 and are disposed along the intake flow path of the main intake line 51 .

On the other hand, a recirculation valve (RCV) is installed in the main intake line 51 , and the recirculation valve 55 is the front end of the branch point of the intake intake line 61 as shown in FIG. 4 . installed on the side

The recirculation valve 55 is for preventing the occurrence of a surge noise generated by the backflow of the supercharged air to the turbocharger 10 when the vehicle is suddenly tipped out. That is, the recirculation valve 55 may bypass the intake air pressure generating the surge noise to the front end of the compressor 11 of the turbocharger 10 . Since this recirculation valve 55 is made of an RCV of a known technology that opens and closes the valve passage as an electromagnet, a more detailed description will be omitted herein.

A recirculation line 57 as a bypass pipe for bypassing the intake air pressure to the front end of the compressor 11 of the turbocharger 10 is connected to the recirculation valve 55 . The recirculation line 57 is connected to the front end of the compressor 11 of the turbocharger 10 .

Here, the recirculation valve 55 may be mounted on a mounting flange 58 integrally provided with the main intake line 51 at the front end side of the branch point of the intake intake line 61 . This mounting flange 58 is integrally provided with a nipple 59 for connecting the recirculation line 57 to the recirculation valve 55 .

In the embodiment of the present invention, as described above, as the recirculation valve 55 is mounted through the mounting flange 58 on the front side of the branch point of the intake intake line 61 from the main intake line 51, the recirculation valve It is possible to increase the space utilization for the mounting of (55).

1 to 3 , in the embodiment of the present invention, the bypass valve 80 operates the main intake line ( 51) to bypass the intake air flowing into the electric supercharger (30).

That is, when the electric supercharger 30 is operated, the bypass valve 30 operates the intake air flowing into the main intake line 51 through the intake intake line 61 to the intake intake portion of the electric supercharger 30 ( 31), and the intake air discharged from the intake air discharge unit 33 of the electric supercharger 30 passes from the main intake line 51 through the intake air discharge line 71 to the branch point of the intake air discharge line 71. It can be bypassed to the rear end. Here, the intake air bypassed from the main intake line 51 to the rear end of the branch point of the intake discharge line 71 may be supplied to the intake manifold 1 through the electronic intake control 9 .

The bypass valve 80 may be installed in the main intake line 51 to selectively open and close the pipe of the main intake line 51 and the pipe of the electric supercharger 30 on the side of the intake outlet 33 .

Furthermore, the bypass valve 80 is installed at a connection point between the main intake line 51 and the intake air discharge line 71 and selectively opens and closes the pipeline between the main intake line 51 and the intake air discharge line 71 . can do.

5 and 6 are views illustrating a bypass valve part applied to an engine system for a vehicle according to an embodiment of the present invention.

Referring to FIGS. 5 and 6 together with FIGS. 1 to 3 , the bypass valve 80 according to an embodiment of the present invention is provided as a valve operated by the intake and discharge pressure of the electric supercharger 30 without power. do.

The bypass valve 80 includes a flap member 81 as a valve body, and a spring 83 for applying an elastic force to the flap member 81 .

The flap member 81 is provided in the form of a flat plate, and is rotatably installed on the main intake line 51 at the branch end of the intake discharge line 71 through the rotation shaft 85 . Here, the flap member 81 is provided as a plate-type valve body in which a corner portion of the free end opposite to the center of rotation is processed into a round shape.

The spring 83 is installed between the flap member 81 and the rotation shaft 85, and while being inserted into the rotation shaft 85, the spring 83 elastically closes the flap member 81 and the inner wall side of the main intake line 51. It is provided with a torsion spring supported by

A stopper 87 as a stopping end for stopping the end (free end) of the flap member 81 is provided at the branch end of the intake/discharge line 71 and the inner wall of the main intake line 51 .

Here, when the electric supercharger 30 is not operated according to the driving conditions of the vehicle, the flap member 81 of the bypass valve 80 serves as the elastic force of the spring 83 to the branch end of the intake discharge line 71 . closed, the pipe of the main intake line 51 is opened, and the intake air outlet side of the turbocharger 10 and the electromagnetic intake control 9 side can be connected through the main intake line 51 .

In addition, when the electric supercharger 30 is operated according to the driving conditions of the vehicle, the flap member 81 of the bypass valve 80 exerts an elastic force of the spring 83 by the intake/discharge pressure of the electric supercharger 30 . overcoming and rotating through the rotation shaft 85, opening the branching end of the intake air discharge line 71, closing the front end of the branching point of the intake air discharge line 71 in the main intake line 51, and electric supercharger The side of the intake/discharge part 33 of ( 30 ) and the side of the electromagnetic intake control ( 9 ) may be connected.

Hereinafter, the operation of the engine system 100 for a vehicle according to an embodiment of the present invention configured as described above will be described in detail with reference to the previously disclosed drawings and the accompanying drawings.

7 and 8 are diagrams for explaining the operation of an engine system for a vehicle according to an embodiment of the present invention.

Referring to FIG. 7 , in the embodiment of the present invention, when the vehicle is driven, intake air (external air) is compressed through the turbocharger 10 and the compressed intake air is supercharged to the main intake line 61 .

Here, when the electric supercharger 30 is not operated according to the driving conditions of the vehicle, the flap member 81 of the bypass valve 80 closes the branch end of the intake discharge line 71 by the elastic force of the spring 83 . and the main intake line 51 is in an open state. Accordingly, the intake air outlet side of the turbocharger 10 and the electronic intake control 9 are connected to each other through the main intake line 51 .

Therefore, in the embodiment of the present invention, the intake air supercharged by the turbocharger 10 is supplied to the electronic intake control 9 through the main intake line 51, and in this process, the airflow sound of intake air is supplied through the resonator 53. can be minimized.

Furthermore, in the embodiment of the present invention, when the vehicle is suddenly tipped out, the supercharged air may flow back into the turbocharger 10 to generate a surge noise. To prevent this, in the embodiment of the present invention, the pressure of intake air is bypassed to the front end of the compressor 11 of the turbocharger 10 through the recirculation line 57 by the operation of the recirculation valve 55 .

Accordingly, in the embodiment of the present invention, intake air flows into the electromagnetic intake control 9 through the main intake line 51 , and intake air flows into the intercooler 5 through the electromagnetic intake control 9 . Then, in the intercooler 5, the intake air introduced through the electronic intake control 9 flows, cools the intake air as cooling water, the cooled intake air flows out, and is supplied to the intake manifold of the intake manifold 1 .

Referring to FIG. 8 , in the embodiment of the present invention, the electric supercharger 30 is operated in a state in which intake air is supercharged to the main intake line 61 through the turbocharger 10 according to the driving conditions of the vehicle. can

When the electric supercharger 30 is operated, in the embodiment of the present invention, the intake air flowing into the main intake line 51 is directed to the intake intake 31 of the electric supercharger 30 through the intake intake line 61 . It is sucked in and compressed and the compressed intake air is discharged through the intake air discharge unit 33 .

Then, in the embodiment of the present invention, the intake air discharged through the intake discharge unit 33 of the electric supercharger 30 is introduced into the intake discharge line 71, and the bypass valve 80 by the discharge pressure of the intake air ) of the flap member 81 to open the branching end of the intake air discharge line 71 , and close the front end side of the branching point of the intake air discharge line 71 in the main intake line 51 .

At this time, the flap member 81 is rotated through the rotation shaft 85 while overcoming the elastic force of the spring 83 by the discharge pressure of the intake air, and is stopped by the stopper 87 in the main intake line 51 . Close the front end of the intake and discharge line 71 of the branch point.

Accordingly, in the embodiment of the present invention, the rear end side of the branching point of the intake discharge line 71 in the intake discharge line 71 and the main intake line 51 is interconnected through the flap member 81, and the electric supercharger ( 30), the side of the intake/discharge unit 33 and the side of the electromagnetic intake control 9 are connected.

Therefore, in the embodiment of the present invention, the secondary supercharged intake air by the electric supercharger 30 is bypassed to the rear end of the branch point of the intake discharge line 71 through the bypass valve 80, and the electronic intake control ( 9), and the intake air flows into the intercooler 5 through the electromagnetic intake control 9.

Then, in the intercooler 5, the intake air introduced through the electronic intake control 9 flows, cools the intake air as cooling water, the cooled intake air flows out, and is supplied to the intake manifold of the intake manifold 1 .

According to the vehicle engine system 100 according to the embodiment of the present invention as described so far, the turbocharger 10 is placed on one side of the intake manifold 1 , and the electric supercharger is located below the intake manifold 1 . By disposing 30 , the water-cooled intercooler integrated intake manifold 1 , the turbocharger 10 and the electric supercharger 30 can be disposed close to each other.

In addition, in the embodiment of the present invention, the recirculation valve 55 and the bypass valve 80 are provided in the conduit assembly 50 in which the main intake line 51 , the intake intake line 61 and the intake discharge line 71 are integrated. composing

Accordingly, in the embodiment of the present invention, it is advantageous in terms of a package layout having a two-stage supercharging device of the turbocharger 10 and the electric supercharger 30, and the configuration of the intake path for supplying intake air to the intake manifold 1 is It can be simplified, which can reduce the number and weight of parts such as pipelines.

Although the embodiments of the present invention have been described above, the technical spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the technical spirit of the present invention can configure, within the scope of the same technical spirit. Other embodiments may be easily proposed by adding, changing, deleting, or adding elements, but this will also fall within the scope of the present invention.

1: intake manifold 3: engine
5: Intercooler 9: Electronic intake control (ETC)
10: Turbocharger 11: Compressor
30: electric supercharger 31: intake intake
33: intake discharge unit 50: pipe assembly
51: main intake line 53: resonator
55: recirculation valve 57: recirculation line
58: mounting flange 59: nipple
61: intake suction line 71: intake discharge line
80: bypass valve 81: flap member
83: spring 85: axis of rotation
87: stopper B: mounting bracket
F: Flange 100: Engine system

Claims (14)

An engine system for a vehicle, comprising: an intake manifold integrally forming a water-cooled intercooler in an engine; and a turbocharger that compresses intake air by exhaust gas and supplies it to the intake manifold through electronic intake control (ETC),
an electric supercharger that has the turbocharger on one side of the intake manifold and installed below the intake manifold, selectively compressing intake air according to operating conditions and supplying it to the intake manifold through electronic intake control;
a pipe assembly having a main intake line connecting an intake air outlet side of the turbocharger and the electronic intake control, and being branched from the main intake line and connected to an intake intake and an intake discharge portion of the electric supercharger, respectively; and
a bypass valve installed on the main intake line and selectively opening and closing the main intake line and the intake outlet side pipe;
A vehicle engine system comprising a. According to claim 1,
The conduit assembly,
an intake intake line branched from the main intake line and connected to an intake intake portion of the electric supercharger;
An intake air discharge line branched from the main intake line and connected to an intake air discharge unit of the electric supercharger
A vehicle engine system comprising a. 3. The method of claim 2,
The intake air intake line and the intake air discharge line are disposed along an intake air flow path of the main intake line. 3. The method of claim 2,
The conduit assembly,
An engine system for a vehicle integrally configuring the main intake line, the intake intake line, and the intake air discharge line. 3. The method of claim 2,
The bypass valve is
An engine system for a vehicle that is installed at a connection point between the main intake line and the intake air discharge line and selectively opens and closes a pipeline between the main intake line and the intake air discharge line. 3. The method of claim 2,
In the main intake line,
A vehicle engine system in which a recirculation valve (RCV) is installed in front of a branch point of the intake intake line. 7. The method of claim 6,
The recirculation valve is connected to a front end side of the compressor of the turbocharger through a recirculation line. 8. The method of claim 7,
The recirculation valve is installed on a mounting flange integrally provided with the main intake line,
The mounting flange is integrally provided with a nipple for connecting the recirculation line. According to claim 1,
The main intake line is connected to an intake air outlet side of the turbocharger through a resonator. 3. The method of claim 2,
The bypass valve is
An engine system for a vehicle that closes a branch end of the intake discharge line by an elastic force of a spring, opens the main intake line, and connects the intake air outlet side of the turbocharger and the electromagnetic intake control side through the main intake line. 3. The method of claim 2,
The bypass valve is
The electric supercharger overcomes the elastic force of the spring and rotates by the intake and discharge pressure of the electric supercharger to open the branch end of the intake discharge line, close the front end of the branch point of the intake discharge line in the main intake line, and the electric supercharger An engine system for a vehicle connecting a side of an intake/discharge portion of a charger and a side of the electronic intake control. 3. The method of claim 2,
The bypass valve is
a flap member rotatably installed through a rotation shaft on the main intake line at the branch end of the intake discharge line;
a spring installed between the flap member and the rotation shaft
A vehicle engine system comprising a. 13. The method of claim 12,
A stopper for stopping the end of the flap member is provided on a branch end of the intake discharge line and an inner wall of the main intake line. According to claim 1,
The electronic intake control is connected to the intercooler, and the intercooler is connected to the intake manifold.

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