CN115075996A

CN115075996A - Engine system and vehicle with same

Info

Publication number: CN115075996A
Application number: CN202210655211.3A
Authority: CN
Inventors: 朱立铭; 杨文蕾; 刘国昌; 张宇璠; 夏春雨
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-20

Abstract

The invention provides an engine system and a vehicle with the same, comprising: an engine having a cylinder head; the air inlet system comprises a shell, wherein the shell is provided with a pressure stabilizing cavity, a plurality of air inlet channels are formed in the side wall, located on one side of the length direction of the pressure stabilizing cavity, and are communicated with the pressure stabilizing cavity, and the shell and the cylinder cover are integrally molded through injection. By applying the technical scheme of the invention, the shell and the cylinder cover of the engine are integrally formed, the integration of the cylinder cover is enhanced, the cost of the engine is reduced, the assembly of the engine is improved, and the connecting part of the pressure stabilizing cavity and the air inlet channel is not provided with a step, so that the sectional area of the air inlet channel is the maximum theoretical size, the air inlet system can obtain larger flow, the traditional air inlet manifold structure is cancelled, the length of the air inlet channel is shortened, the heating effect of the cylinder cover on the air inlet is reduced, the air enters the cylinder at lower temperature, and the knocking tendency of the engine is reduced.

Description

Engine system and vehicle with same

Technical Field

The invention relates to the technical field of vehicles, in particular to an engine system and a vehicle with the same.

Background

The cylinder head of the traditional air inlet system integrates an air inlet channel and is provided with a flange for fixing an air inlet manifold, and the air inlet manifold (usually made of plastic) is provided with an air inlet branch pipe, a pressure stabilizing cavity and a flange for fixing a throttle body. The traditional air intake system has low integration level, and the connecting part of the pressure stabilizing cavity and the air intake channel is provided with a step, so that the sectional area of the air intake channel is reduced, and the flow of the air intake system is reduced.

Conventional exhaust systems are classified into the following two types:

1) the proposal that the cylinder head does not integrate an exhaust manifold: the exhaust passage of 2 (or 1 or more) exhaust passages of each cylinder is converged into 1 exhaust passage outlet, N cylinders of the engine are provided with N exhaust passage outlets which are connected to an exhaust manifold and are converged into 1 exhaust manifold outlet in the exhaust manifold, and the exhaust manifold outlet is connected with a supercharger or a three-way catalyst.

2) The scheme of the cylinder head integrated exhaust manifold comprises the following steps: 2 (or 1 or more) exhaust passages of each cylinder are converged into 1 exhaust passage outlet, N (cylinder number) exhaust passage outlets of the engine are converged into 2 exhaust passage outlets at a cylinder cover flange, and the 2 exhaust passage outlets are all led to a turbine of the supercharger.

In the traditional scheme, the lift and the phase of a camshaft controlling 2 exhaust valves of a single cylinder are consistent, the exhaust valve which does work can not be opened earlier than the bypass exhaust valve, and the exhaust valve which does work can not be opened for a longer time than the bypass exhaust valve.

Disclosure of Invention

The invention mainly aims to provide an engine system and a vehicle with the same, and aims to solve the problem that the integration level of an air intake system is low in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided an engine system comprising: an engine having a cylinder head; the air inlet system comprises a shell, wherein the shell is provided with a pressure stabilizing cavity, a plurality of air inlet channels are formed in the side wall, located on one side of the length direction of the pressure stabilizing cavity, and are communicated with the pressure stabilizing cavity, and the shell and the cylinder cover are integrally formed.

Furthermore, a pressure stabilizing cavity inlet is formed in the shell and is connected with a throttle valve body of the cylinder cover in a flange mode, and the cross section of the pressure stabilizing cavity is gradually increased towards one side of the pressure stabilizing cavity inlet along the length direction of the shell.

Furthermore, a plurality of air inlet channels are arranged at intervals along the length direction of the pressure stabilizing cavity, each air inlet channel extends along the width direction of the pressure stabilizing cavity, at least two air inlet channels in the plurality of air inlet channels are collected firstly and then are communicated with the pressure stabilizing cavity, and at least one bulge is arranged on the surface of the shell, which is provided with the air inlet channels.

Furthermore, a plurality of avoiding pits are arranged on the surface of the shell, which is provided with the pressure stabilizing cavity.

Furthermore, each air inlet channel is arranged on the surface of the shell in a protruding mode along the width direction of the pressure stabilizing cavity, and each air inlet channel and the shell are integrally formed.

Further, the engine system further includes: the exhaust system comprises an exhaust manifold and a supercharger, the exhaust manifold is integrated on the cylinder cover, the exhaust manifold is provided with a plurality of exhaust passages, the exhaust passages are arranged independently, each exhaust passage corresponds to one exhaust outlet, and each exhaust outlet is communicated with an air passage of the supercharger.

Further, a plurality of exhaust passages include acting exhaust passage and waste gas exhaust passage, the exhaust outlet is including acting exhaust outlet and waste gas exhaust outlet, acting exhaust passage and waste gas exhaust passage are a plurality ofly, be provided with a waste gas exhaust passage between the adjacent acting exhaust passage, a plurality of acting exhaust passages extend and all communicate with acting exhaust outlet after presetting the distance, a plurality of waste gas exhaust passages extend and all communicate with waste gas exhaust outlet after presetting the distance, acting exhaust outlet and waste gas exhaust outlet are seted up on the volute of booster, and one side setting that acting exhaust outlet is located waste gas exhaust outlet.

Furthermore, the air passage of the supercharger comprises a work applying passage and a waste gas passage, the work applying passage and the waste gas passage are both arranged in the volute, the work applying exhaust outlet is communicated with the work applying passage, and the waste gas exhaust outlet is communicated with the waste gas passage.

Further, the engine system further includes: the exhaust cam shaft is arranged in the cylinder cover, the exhaust cam shaft is provided with a work-applying exhaust cam and an exhaust gas exhaust cam, the lift ranges of the work-applying exhaust cam and the exhaust gas exhaust cam are arranged differently, and the phases of the work-applying exhaust cam and the exhaust gas exhaust cam at the same moment are arranged differently.

According to another aspect of the invention, a vehicle is provided, the vehicle comprising an engine system, the engine system being as described above.

According to the technical scheme, the air inlet system comprises a shell, the shell is provided with a pressure stabilizing cavity, the side wall located on one side of the pressure stabilizing cavity in the length direction is provided with a plurality of air inlet channels, the air inlet channels are communicated with the pressure stabilizing cavity, the shell and an air cylinder cover of the engine are integrally formed, the integration of the air cylinder cover is enhanced, the cost of the engine is reduced, the assembly of the engine is improved, a step is not arranged at the joint of the pressure stabilizing cavity and the air inlet channels, the sectional area of the air inlet channels is enabled to be the maximum theoretical size, the air inlet system can obtain larger flow, a traditional air inlet manifold structure is omitted, the length of the air inlet channels is shortened, the heating effect of the air cylinder cover on inlet air is reduced, air enters the air cylinder at lower temperature, and the knocking tendency of the engine is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural diagram of an embodiment of an air induction system according to the present invention;

FIG. 2 shows a schematic construction of an embodiment of an exhaust system according to the invention;

FIG. 3 shows a schematic structural diagram of an embodiment of an exhaust system according to the present invention mated with an exhaust camshaft;

FIG. 4 shows a schematic configuration of a first embodiment of a work exhaust cam cooperating with an exhaust cam according to the present invention;

fig. 5 shows a schematic structural diagram of a first embodiment of a work exhaust cam cooperating with an exhaust cam according to the invention.

Wherein the figures include the following reference numerals:

10. an air intake system; 11. a voltage stabilizing cavity; 111. avoiding the pits; 12. an air inlet channel; 121. a protrusion; 13. an inlet of the pressure stabilizing cavity; 14. a housing;

20. an exhaust system; 21. an exhaust manifold; 22. a supercharger; 23. an acting exhaust passage; 24. an exhaust gas passage; 25. a volute; 26. a working channel; 27. an exhaust gas passage;

30. an exhaust camshaft; 31. an exhaust cam for applying work; 32. an exhaust cam.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Referring to fig. 1-5, according to an embodiment of the present application, an engine system is provided.

Specifically, the engine system includes engine, air intake system 10, and the engine has the cylinder head, and air intake system 10 includes casing 14, and casing 14 has pressure stabilizing cavity 11, has seted up a plurality of intake ducts 12 on the lateral wall that is located the length direction one side of pressure stabilizing cavity 11, and a plurality of intake ducts 12 all communicate the setting with pressure stabilizing cavity 11, and wherein, casing 14 and cylinder head integrated into one piece set up.

By applying the technical scheme of the embodiment, the air inlet system 10 comprises a shell 14, the shell 14 is provided with a pressure stabilizing cavity 11, a plurality of air inlet channels 12 are formed in the side wall of one side of the pressure stabilizing cavity 11 in the length direction, the air inlet channels 12 are all communicated with the pressure stabilizing cavity 11, the shell 14 and the air cylinder cover of the engine are integrally formed, the integration of the air cylinder cover is enhanced, the cost of the engine is reduced, and the assembly performance of the engine is improved, and no step is arranged at the joint of the pressure stabilizing cavity 11 and the air inlet channels 12, so that the cross section area of the air inlet channels is the maximum theoretical size, the air inlet system can obtain larger flow, a traditional air inlet manifold structure is cancelled, the length of the air inlet channels is shortened, the heating effect of the air cylinder cover on air inlet is reduced, air enters the cylinder at lower temperature, and the knocking tendency of the engine is reduced.

As shown in fig. 1, a pressure maintaining cavity inlet 13 is formed in the casing 14, wherein the surface shape of the joint of the pressure maintaining cavity inlet 13 and the pressure maintaining cavity 11 on the casing 14 is a cylinder or a curved surface similar to a cylinder. The inlet 13 of the pressure stabilizing cavity is connected with a throttle body flange of the cylinder cover, and the cross section of the pressure stabilizing cavity 11 is gradually increased towards one side of the inlet 13 of the pressure stabilizing cavity along the length direction of the shell 14. The volume of the pressure stabilizing cavity 11 can be reduced, and the oversize of the pressure stabilizing cavity 11 and the cylinder cover of the engine is avoided.

Furthermore, a plurality of inlet channels 12 are arranged at intervals along the length direction of the pressure stabilizing cavity 11, each inlet channel 12 extends along the width direction of the pressure stabilizing cavity 11, at least two inlet channels 12 in the plurality of inlet channels 12 are gathered and then communicated with the pressure stabilizing cavity 11, and at least one protrusion 121 is arranged on the surface of the shell 14, which is provided with the inlet channels 12. Specifically, one protrusion 121 is arranged on the surface of the casing 14 corresponding to each air inlet 12, and another protrusion 121 is arranged on the surface of the convergence of the two air inlets 12 on the casing 14, so that burrs generated during machining can be avoided, and the surface of the air inlet 12 connected with the pressure stabilizing cavity 11 is free from steps, and further the air inlet system 10 can obtain larger flow.

Furthermore, a plurality of avoiding concave pits 111 are arranged on the surface of the shell 14, which is provided with the pressure stabilizing cavity 11, so as to ensure that the pressure stabilizing cavity 11 and the related structure have enough wall thickness (more than 4 mm).

Further, each intake duct 12 is provided on the surface of the housing 14 so as to protrude in the width direction of the surge tank 11, and each intake duct 12 is provided integrally with the housing 14. Specifically, the air inlet passage 12 and the casing 14 are integrally formed in a casting mode, and the casing 14 is connected to the rear end of a throttle flange of a cylinder head of the engine through a surge tank inlet 13, so that the integration of the cylinder head is further improved.

In one embodiment of the present application, the surge chamber 11 has a smooth inner wall, which can reduce the intake resistance and improve the intake efficiency. And an air inlet manifold is eliminated, and the pressure stabilizing cavity 11 and the air inlet channel 12 are integrated on the shell 14, so that the air inlet system 10 has a shorter air inlet channel 12, the heating effect of the cylinder cover on the inlet air is further reduced, and the air enters the cylinder at lower temperature.

As shown in fig. 2, the engine system further includes an exhaust system 20, where the exhaust system 20 includes an exhaust manifold 21 and a supercharger 22, the exhaust manifold 21 is integrated on the cylinder head, the exhaust manifold 21 has a plurality of exhaust passages, and the plurality of exhaust passages are arranged independently of each other, each exhaust passage corresponds to one exhaust outlet, and each exhaust outlet is arranged to communicate with an air passage of the supercharger 22. This arrangement allows exhaust manifold 21 to have different exhaust outlets, which reduces exhaust interference, and allows a large amount of exhaust gas to enter the air path of supercharger 22 for use by supercharger 22, improving the work capacity of the turbine within supercharger 22.

Further, a plurality of exhaust passages include acting exhaust passage 23 and waste gas exhaust passage 24, the exhaust outlet is including acting exhaust outlet and waste gas exhaust outlet, acting exhaust passage 23 and waste gas exhaust passage 24 are a plurality ofly, be provided with a waste gas exhaust passage 24 between the adjacent acting exhaust passage 23, a plurality of acting exhaust passages 23 extend and all communicate with acting exhaust outlet after presetting the distance, a plurality of waste gas exhaust passages 24 extend and all communicate with waste gas exhaust outlet after presetting the distance, acting exhaust outlet and waste gas exhaust outlet are seted up on supercharger 22's volute 25, and acting exhaust outlet is located one side setting of waste gas exhaust outlet. Specifically, both the working exhaust outlet and the exhaust outlet are opened at a first end of the scroll 25 of the supercharger 22, and the working exhaust outlet is located at a lower side (or an upper side) of the exhaust outlet. In this embodiment, the working exhaust passage 23 and the exhaust gas passage 24 are independent from each other, and both the working exhaust passage 23 and the exhaust gas passage 24 have a long length, thereby further reducing exhaust interference and ensuring that a large amount of exhaust gas can be utilized by the supercharger 22.

In another embodiment of the present application, the exhaust manifold 21 has 8 exhaust passages, wherein the 8 exhaust passages include 4 working exhaust passages 23 and 4 exhaust passages 24, and each cylinder of the engine is connected with one working exhaust passage 23 and one exhaust passage 24.

Further, the air passage of supercharger 22 includes a work applying passage 26 and an exhaust passage 27, both work applying passage 26 and exhaust passage 27 are opened in scroll 25, the work applying exhaust outlet is communicated with work applying passage 26, and the exhaust outlet is communicated with exhaust passage 27. In the present embodiment, power passage 26 is connected to the turbine of supercharger 22 to drive the turbine to perform work, and exhaust passage 27 leads directly to the rear end of the turbine (not involved in the turbine to perform work) to exhaust the exhaust gas. The exhaust gas in the working channel 26 enters the exhaust channel 27 after the turbine works, and is merged with the exhaust gas in the exhaust channel 27 and discharged.

In another embodiment of the present application, an exhaust gas exhaust valve is further provided on the volute 25 of the supercharger 22, and exhaust gas is timely discharged from the rear end of the turbine of the supercharger 22 by controlling the opening of the exhaust gas exhaust valve.

As shown in fig. 3, the engine system further includes an exhaust camshaft 30, the exhaust camshaft 30 is disposed in the cylinder head, a work exhaust cam 31 and an exhaust cam 32 are disposed on the exhaust camshaft 30, the lifts of the work exhaust cam 31 and the exhaust cam 32 are differently set, and the phases of the work exhaust cam 31 and the exhaust cam 32 at the same time are differently set. As shown in fig. 5, the lift of the working exhaust cam 31 is larger than the lift of the exhaust cam 32, specifically, the lift of the working exhaust cam 31 is 4.267mm, and the lift of the exhaust cam 32 is 2.8 mm. As shown in fig. 4, at the same time, the phase of the working exhaust cam 31 is always earlier than that of the exhaust cam 32, so that a large amount of exhaust gas is discharged through the working exhaust valve, the in-cylinder temperature of the engine can be reduced, the knocking tendency of the engine is reduced, more exhaust energy acts on the turbine, and the working capacity of the turbine is improved.

The engine system in the above embodiment may also be applied to the technical field of vehicles, that is, according to another specific embodiment of the present application, a vehicle is provided, and the vehicle includes the engine system in the above embodiment.

In this embodiment, the air intake system 10 includes a housing 14, the housing 14 has a pressure stabilizing cavity 11, a plurality of air intake channels 12 have been seted up on the lateral wall that is located the length direction one side of pressure stabilizing cavity 11, a plurality of air intake channels 12 all communicate with pressure stabilizing cavity 11 and set up, and housing 14 and the cylinder head integrated into one piece of engine, the integration of cylinder head has been strengthened, the cost of engine has been reduced, and the assembly nature of engine has been improved, and there is not the step in the pressure stabilizing cavity 11 and the air intake channel 12 junction, make the sectional area of air intake channel accomplish the biggest theoretical size, air intake system can obtain bigger flow, and cancelled traditional air intake manifold structure, the length of air intake channel 12 has been shortened, thereby the heating effect of cylinder head to admitting air has been reduced, make the air get into the cylinder with lower temperature, the detonation tendency of engine has been reduced. The exhaust system 20 comprises an exhaust manifold 21 and a supercharger 22, the exhaust manifold 21 is integrated on a cylinder cover, the exhaust manifold 21 comprises a plurality of work-applying exhaust passages 23 and a plurality of exhaust passages 24, first ends of the plurality of work-applying exhaust passages 23 and the plurality of exhaust passages 24 are all connected with cylinders of the engine, second ends of the plurality of work-applying exhaust passages 23 extend for a preset distance and are all communicated with work-applying exhaust outlets, the plurality of exhaust passages 24 extend for a preset distance and are all communicated with the exhaust outlet, so that each cylinder of the engine is internally provided with one work-applying exhaust passage 23 and one exhaust passage 24, exhaust which can be used for the turbine of the supercharger 22 to do work in each cylinder passes through one longer work-applying exhaust passage 23 and then enters a work-applying passage 26 of the supercharger 22, and after the turbine is pushed to do work in the work-applying passage 26, the exhaust passage 27 is then entered into the exhaust passage, the exhaust gas in each cylinder passes through a long exhaust gas passage 24, enters the exhaust gas passage 27 of the supercharger 22 from an exhaust gas outlet, and is directly discharged from the exhaust gas passage 27. By adopting the engine system in the embodiment, the air inlet system 10 can obtain larger flow, and the lift of the exhaust gas exhaust cam 32 for controlling exhaust gas in each cylinder is different from that of the work-doing exhaust cam 31 for controlling work, wherein the lift of the work-doing exhaust cam 31 for controlling work is larger than that of the exhaust gas exhaust cam 32 for controlling exhaust gas, and the work-doing exhaust cam 31 is always advanced in phase at the same moment, so that the exhaust interference among the cylinders of the engine can be reduced, the work-doing exhaust valve can be ensured to be always opened earlier than the bypass exhaust valve through the work-doing exhaust cam 31 and the exhaust gas exhaust cam 32, a large amount of exhaust gas is exhausted through the work-doing exhaust valve, the temperature in the cylinders is reduced, and the detonation tendency is further reduced. And more exhaust energy acts on the turbine, so that the work capacity of the turbine is improved. Therefore, the vehicle adopts the engine system in the embodiment, the power performance of the vehicle can be greatly improved, and the engine system is not provided with an intake manifold, so that the number of parts is reduced, the size of a cylinder cover of the engine system is smaller, the cost of the vehicle can be reduced and the space of the vehicle can be saved when the engine system is applied to the vehicle.

By using the technical scheme of the application, the traditional intake manifold structure is cancelled in the intake system 10, the pressure stabilizing cavity 11, the intake channels 12 and the shell 14 are integrally cast and formed, the two intake channels 12 are firstly collected and then communicated with the pressure stabilizing cavity 11, and the surface shape of the shell 14 with the intake channels 12 is similar to an inverted 'Y' shape. The casing 14 is connected to the rear end of a throttle body flange of the cylinder cover through a pressure stabilizing cavity inlet 13, the surface shape of the casing with the pressure stabilizing cavity 11 is approximately trapezoidal, the volume of the pressure stabilizing cavity 11 can be reduced, the pressure stabilizing cavity 11 and the cylinder cover are prevented from being oversize, a plurality of avoidance pits 111 are arranged on the surface of the casing with the pressure stabilizing cavity 11, and the pressure stabilizing cavity 11 and relevant structures can be guaranteed to have enough wall thickness. The exhaust system 20 is composed of an exhaust manifold 21 and a supercharger 22, the exhaust manifold 21 is integrated on a cylinder cover of an engine, the exhaust manifold 21 is provided with a work doing exhaust passage 23 and an exhaust gas passage 24 which are independent from each other, exhaust interference among cylinders of the engine is reduced, the work doing exhaust passage 23 is communicated with a work doing passage 26 of the supercharger 22, the exhaust gas passage 24 is communicated with an exhaust gas passage 27 of the supercharger 22, exhaust of the work doing passage 26 pushes a turbine to do work and then is converged with exhaust gas in the exhaust gas passage 27 to be exhausted out of the supercharger, the lift of a work doing exhaust cam 31 is larger than that of an exhaust gas exhaust cam 32, and the phase of the work doing exhaust cam 31 at the same moment is always ahead of that of the exhaust gas exhaust cam 32, so that the work doing exhaust valve is controlled to be opened always ahead of that of a bypass exhaust valve, a large amount of exhaust is exhausted by the exhaust valve to do work, and the temperature in the cylinder is further reduced, the tendency to knock is reduced. The cylinder head integration level of the engine system of the application is high, the size is smaller, the problem that the integration level of an air inlet system in the prior art is low is solved, the air inlet flow is improved, the exhaust interference is reduced, the cam shaft lift and the phase of 2 exhaust valves for controlling a single cylinder in the prior art are consistent, the exhaust valve which does work can not be opened earlier than the exhaust valve of the bypass, the problem that the opening time of the exhaust valve which does work is longer than the exhaust valve of the bypass can not be made, the work doing capability of a turbine is improved, and more excellent performance is achieved.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine system, comprising:

an engine having a cylinder head;

air intake system (10), air intake system (10) include casing (14), casing (14) have pressure stabilizing cavity (11), are located a plurality of intake ducts (12) have been seted up on the lateral wall of the length direction one side of pressure stabilizing cavity (11), and are a plurality of intake duct (12) all with pressure stabilizing cavity (11) intercommunication sets up, wherein, casing (14) with cylinder head integrated into one piece sets up.

2. The engine system of claim 1,

a pressure stabilizing cavity inlet (13) is formed in the shell (14), the pressure stabilizing cavity inlet (13) is connected with a throttle body flange of the cylinder cover, the pressure stabilizing cavity inlet (13) faces one side of the pressure stabilizing cavity inlet (13) along the length direction of the shell (14), and the cross section of the pressure stabilizing cavity (11) is gradually increased.

3. The engine system according to claim 1 or 2,

it is a plurality of intake duct (12) are followed the length direction interval ground of pressure stabilizing cavity (11) sets up, every intake duct (12) are followed the width direction of pressure stabilizing cavity (11) extends to set up, and is a plurality of at least two in intake duct (12) collect earlier afterwards with pressure stabilizing cavity (11) set up with communicateing, seted up on casing (14) intake duct (12) are provided with at least one arch (121) on the surface.

4. The engine system according to claim 2, characterized in that a plurality of relief pits (111) are arranged on the surface of the shell (14) where the surge chamber (11) is opened.

5. The engine system according to claim 1 or 2, characterized in that each of the intake ducts (12) is protrudingly provided on a surface of the housing (14) in a width direction of the surge chamber (11), and each of the intake ducts (12) is provided integrally with the housing (14).

6. The engine system of claim 1, further comprising:

the exhaust system (20) comprises an exhaust manifold (21) and a supercharger (22), the exhaust manifold (21) is integrated on the cylinder cover, the exhaust manifold (21) is provided with a plurality of exhaust passages, the exhaust passages are arranged independently, each exhaust passage corresponds to one exhaust outlet, and each exhaust outlet is communicated with an air passage of the supercharger (22).

7. The engine system of claim 6,

it is a plurality of the exhaust passage is including doing work exhaust passage (23) and waste gas exhaust passage (24), the exhaust outlet is including doing work exhaust outlet and waste gas exhaust outlet, doing work exhaust passage (23) with waste gas exhaust passage (24) are a plurality ofly, and are adjacent be provided with a waste gas exhaust passage (24) between doing work exhaust passage (23), and are a plurality of doing work exhaust passage (23) extend after predetermineeing the distance all with doing work exhaust outlet intercommunication, it is a plurality of waste gas exhaust passage (24) extend predetermine the distance after all with waste gas exhaust outlet intercommunication, do work exhaust outlet with waste gas exhaust outlet sets up in on volute (25) of booster (22), just do work exhaust outlet is located one side setting of waste gas exhaust outlet.

8. The engine system of claim 7,

the air passage of the supercharger (22) comprises a work doing passage (26) and an exhaust passage (27), the work doing passage (26) and the exhaust passage (27) are both arranged in the volute (25), a work doing exhaust outlet is communicated with the work doing passage (26), and an exhaust outlet is communicated with the exhaust passage (27).

9. The engine system of claim 5, further comprising:

an exhaust camshaft (30), the exhaust camshaft (30) being disposed in the cylinder head, a power exhaust cam (31) and an exhaust gas exhaust cam (32) being disposed on the exhaust camshaft (30), lifts of the power exhaust cam (31) and the exhaust gas exhaust cam (32) being set differently, and phases of the power exhaust cam (31) and the exhaust gas exhaust cam (32) at the same timing being set differently.

10. A vehicle characterized by comprising an engine system according to any one of claims 1 to 9.