Vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a vehicle which comprises an engine assembly, a silencer and a three-way catalytic converter, and a mounting space is formed in the rear end of the engine assembly in the front-back direction; the silencer is installed in the installation space, and an inner containing cavity is formed in the silencer; the three-way catalytic converter is installed in the inner containing cavity, and the input end of the three-way catalytic converter extends out of the silencer so that the input end of the three-way catalytic converter can be connected with the engine assembly. The three-way catalyst is installed in the silencer, so that the silencer and the three-way catalyst are conveniently installed in the installation space, the integration degree of an exhaust system is improved, the space utilization rate of an exhaust assembly is improved, the weight of the exhaust assembly is reduced, and therefore the weight of a vehicle is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a vehicle. Background Technology

[0002] Traditional vehicles typically include an engine assembly and an exhaust assembly. The exhaust assembly treats the exhaust gases produced by the engine assembly. The exhaust assembly usually includes a main catalytic converter, a pre-catalytic converter, a main muffler, a secondary muffler, and an exhaust hanger.

[0003] Traditional exhaust systems are limited by engine compartment space, so the various components of the exhaust system need to be distributed throughout the lower body of the vehicle from the front to the rear. At the same time, considering the heat damage of the exhaust system, sufficient space needs to be reserved around the entire exhaust path to reduce the risk of heat damage. This results in extremely low space utilization of the exhaust system and is not conducive to vehicle weight reduction. Utility Model Content

[0004] This application provides a vehicle that improves the space utilization of the exhaust assembly and reduces the weight of the exhaust assembly, thereby achieving vehicle weight reduction.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] This application provides a vehicle including an engine assembly, a muffler, and a three-way catalytic converter. Along the longitudinal direction, a mounting space is formed at the rear end of the engine assembly. The muffler is installed within the mounting space, and an internal cavity is formed within the muffler. The three-way catalytic converter is installed within the internal cavity, and its input end extends outside the muffler to connect the input end of the three-way catalytic converter to the engine assembly.

[0007] Furthermore, the vehicle also includes a transmission assembly mounted on one side of the engine assembly in the left-right direction; and in the front-rear direction, the rearmost end of the transmission assembly is located behind the rearmost end of the engine assembly, so as to form an installation space between the engine assembly and the transmission assembly.

[0008] Furthermore, the muffler includes a mounting opening in the left-right direction, the mounting opening being located on the side of the muffler opposite to the drive assembly; at least a portion of the three-way catalytic converter extends outside the muffler through the mounting opening, and the mounting opening is sealed to the side wall of the three-way catalytic converter.

[0009] Furthermore, the vehicle also includes a driveshaft connected to the engine assembly; the mounting space is located above the driveshaft.

[0010] Furthermore, the vehicle also includes an exhaust pipe, the input end of which is connected to the muffler, and the output end of which extends to the left or right side of the vehicle.

[0011] Furthermore, the vehicle includes a driveshaft, front wheels, and a frame, with the engine assembly mounted on the frame and the front wheels connected to the engine assembly via the driveshaft; the frame includes a B-pillar, and the exhaust pipe's output end is located between the front wheels and the B-pillar.

[0012] Furthermore, the exhaust pipe includes a first pipe section, a second pipe section, and a third pipe section connected in sequence. The first pipe section is connected to the muffler. When viewed in the vertical direction, the first pipe section extends in the front-back direction, the third pipe section extends in the left-right direction, and the second pipe section is inclined relative to the first pipe section and the third pipe section.

[0013] Furthermore, the exhaust pipe also includes a fourth pipe section, which is connected to the rear end of the third pipe section along the direction of exhaust gas flow; viewed from the front-back direction, the fourth pipe section extends downward at an angle.

[0014] Furthermore, the muffler includes a connecting pipe, one end of which is connected to the muffler and the other end is located outside the muffler; the input end of the exhaust pipe is connected to the muffler through the connecting pipe.

[0015] Furthermore, the muffler has a recessed groove located at the top of the muffler; the input end of the three-way catalytic converter extends into the recessed groove.

[0016] By installing the three-way catalytic converter inside the muffler, the muffler and the three-way catalytic converter can be installed in the installation space, improving the integration of the exhaust system, increasing the space utilization of the exhaust assembly, and reducing the weight of the exhaust assembly, thereby achieving vehicle weight reduction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the assembled engine assembly, transmission assembly, and exhaust assembly of the vehicle provided in this application.

[0019] Figure 2 This is a structural schematic diagram of the vehicle provided in this application.

[0020] Figure 3 yes Figure 1 The diagram shows the structure of the exhaust assembly.

[0021] Figure 4 yes Figure 1 The diagram shows the assembly of the muffler and three-way catalytic converter in the exhaust system, where part of the muffler housing is hidden.

[0022] Explanation of reference numerals in the attached drawings: Engine assembly 1, mounting space 101, muffler 2, internal cavity 201, first cavity 2011, second cavity 2012, third cavity 2013, mounting opening 202, connecting pipe 203, recessed groove 204, muffler housing 205, mounting partition 206, honeycomb partition 207, connecting pipe 208, three-way catalytic converter 3, exhaust pipe 4, first pipe section 401, second pipe section 402, third pipe section 403, fourth pipe section 404, transmission assembly 5, drive shaft 501, front wheel 6, frame 7, B-pillar 701, vibrating corrugated joint 8, exhaust hanger 9. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figure 1 and Figure 2 As shown, as one implementation, this application provides a vehicle including an engine assembly 1, a muffler 2, and a three-way catalytic converter 3. The engine assembly 1 is used to convert the chemical energy in the fuel into kinetic energy, thereby driving the vehicle to move. The muffler 2 is used to reduce the noise generated during the exhaust emission process. The three-way catalytic converter 3 is used to convert the harmful gases emitted by the engine into relatively harmless substances through a chemical reaction, thereby reducing the pollution of automobile exhaust to the environment.

[0025] It should be noted that the muffler 2 and the three-way catalytic converter 3 are components of the vehicle exhaust system.

[0026] Specifically, in the front-rear direction, the rear end of the engine assembly 1 has an installation space 101.

[0027] It should be noted that, along the vertical direction, the highest and lowest points of the mounting space 101 are located between the highest and lowest points of the engine assembly 1. Along the horizontal direction, the leftmost and rightmost points of the mounting space 101 are located between the leftmost and rightmost points of the engine assembly 1.

[0028] The muffler 2 is installed in the installation space 101, and a cavity 201 is formed inside the muffler 2.

[0029] The three-way catalytic converter 3 is installed inside the internal cavity 201, and the input end of the three-way catalytic converter 3 extends out of the muffler 2. The input end of the three-way catalytic converter 3 is connected to the engine assembly 1, so that the exhaust gas generated by the engine assembly 1 is input to the three-way catalytic converter 3.

[0030] By installing the three-way catalytic converter 3 inside the muffler 2, the muffler 2 and the three-way catalytic converter 3 can be installed in the installation space 101, thereby improving the integration of the exhaust system, increasing the space utilization of the exhaust assembly, reducing the weight of the exhaust assembly, and thus achieving vehicle weight reduction.

[0031] To more clearly illustrate the technical solution of this application, the following definitions are provided: Figure 1 The diagram shows the front, back, left, right, up, and down directions. The up / down direction refers to the vehicle's vertical movement. The left / right direction refers to the vehicle's horizontal movement. The front / back direction refers to the vehicle's front / back movement.

[0032] like Figure 1 As shown, in one implementation, the vehicle also includes a transmission assembly 5, which is mounted on one side of the engine assembly 1 in the left-right direction;

[0033] Along the front-rear direction, the rearmost end of the transmission assembly 5 is located behind the rearmost end of the engine assembly 1, so as to form an installation space 101 between the engine assembly 1 and the transmission assembly 5, that is, the installation space 101 is located between the rearmost end of the transmission assembly 5 and the rearmost end of the engine assembly 1.

[0034] It should be noted that the installation space 101 is easily affected by engine heat damage and cannot accommodate other components. By placing the muffler 2 and the three-way catalytic converter 3 within the installation space 101, the space utilization of the engine assembly 1 can be fully utilized, the weight of the exhaust assembly can be reduced, and thus the vehicle weight can be reduced.

[0035] In one implementation, the transmission assembly 5 includes a drive shaft 501, which is connected to the engine assembly 1 via the gearbox of the transmission assembly 5. The mounting space 101 is located above the drive shaft 501 to prevent the muffler 2 from interfering with the drive shaft 501.

[0036] like Figure 3 and Figure 4 As shown, in one implementation, the muffler 2 includes a mounting opening 202, which is located on the side of the muffler 2 away from the transmission assembly 5 in the left-right direction.

[0037] At least a portion of the three-way catalytic converter 3 extends outside the muffler 2 through the mounting opening 202 to facilitate the connection of a sensor for monitoring the three-way catalytic converter 3 to the three-way catalytic converter 3. The mounting opening 202 is sealed to the side wall of the three-way catalytic converter 3. By mounting the three-way catalytic converter 3 on the side of the muffler 2 away from the transmission assembly 5, the sensor mounted on the three-way catalytic converter 3 can be located on the left or right side of the muffler 2, thereby further improving the space utilization of the engine assembly 1 and reducing the size of the engine assembly 1 in the front-rear or vertical direction.

[0038] like Figure 4 As shown, in one implementation, the silencer 2 includes a silencer housing 205, a mounting partition 206 and a honeycomb partition 207. The inner cavity 201 is located inside the silencer housing 205. The mounting partition 206 and the honeycomb partition 207 are arranged in parallel and installed inside the inner cavity 201. The honeycomb partition 207 is located between the mounting partition 206 and the mounting opening 202.

[0039] By installing partition 206 and honeycomb partition 207, the inner cavity 201 is divided into a first cavity 2011, a second cavity 2012 and a third cavity 2013 from left to right. Multiple through holes are uniformly formed on the honeycomb partition 207, so that the second cavity 2012 and the third cavity 2013 are connected.

[0040] One end of the three-way catalytic converter 3 is fixed to the mounting opening 202, and the other end is fixed to the honeycomb partition 207 to ensure the connection stability between the three-way catalytic converter 3 and the muffler 2.

[0041] Furthermore, the output end of the three-way catalytic converter 3 is fixed on the mounting partition 206, and the output end of the three-way catalytic converter 3 extends into the first chamber 2011.

[0042] As one implementation, the muffler 2 includes a connecting pipe 203. One end of the connecting pipe 203 extends into the inner cavity 201 and is connected to the mounting partition 206. This end also extends into the second cavity 2012, so that one end of the connecting pipe 203 is connected to the muffler 2, and the other end of the connecting pipe 203 is located outside the muffler 2.

[0043] The silencer 2 also includes a connecting pipe 208, the two ends of which are fixed to the mounting partition 206 and the honeycomb partition 207 respectively, so that the first cavity 2011 and the third cavity 2013 are connected.

[0044] It should be noted that the flow direction of the exhaust gas within the muffler 2 is as follows.

[0045] (1) The output end of the three-way catalytic converter 3 discharges the exhaust gas into the first chamber 2011;

[0046] (2) The exhaust gas in the first chamber 2011 flows to the third chamber 2013 through the connecting pipe 208;

[0047] (3) The exhaust gas in the third chamber 2013 flows into the second chamber 2012 through the through holes on the honeycomb partition 207;

[0048] (4) The exhaust gas in the second chamber 2012 is output to the muffler 2 through the connecting pipe 203.

[0049] As one implementation, a relief groove 204 is formed on the muffler housing 205 of the muffler 2. The relief groove 204 is located on the top of the muffler 2 and is positioned directly opposite the exhaust port of the engine assembly 1.

[0050] The input end of the three-way catalytic converter 3 extends into the recess 204 so that the input end of the three-way catalytic converter 3 can be connected to the exhaust port of the engine assembly 1.

[0051] like Figure 3 As shown, in one implementation, the vehicle also includes an exhaust pipe 4. The input end of the exhaust pipe 4 is connected to the muffler 2, and the output end of the exhaust pipe 4 extends to the left or right side of the vehicle, so that the exhaust pipe 4 does not need to extend to the rear of the vehicle, thereby reducing the total length of the exhaust pipe 4 and reducing the overall weight of the exhaust assembly, thus achieving vehicle weight reduction.

[0052] like Figure 2 As shown, in one implementation, the vehicle includes a driveshaft 501, front wheels 6 and a frame 7, with the engine assembly 1 mounted on the frame 7, and the front wheels 6 connected to the engine assembly 1 via the driveshaft 501.

[0053] The frame 7 includes a B-pillar 701, and the output end of the exhaust pipe 4 is located between the front wheel 6 and the B-pillar 701. By shortening the length of the exhaust pipe 4, the overall weight of the exhaust assembly is reduced, thereby achieving vehicle weight reduction.

[0054] like Figure 3 As shown, in one implementation, the exhaust pipe 4 includes a first pipe section 401, a second pipe section 402 and a third pipe section 403 connected in sequence. The first pipe section 401 is connected to the muffler 2 through a connecting pipe 203.

[0055] Looking up and down, the first pipe segment 401 extends in the front and back direction, the third pipe segment 403 extends in the left and right direction, and the third pipe segment 403 is located between the front wheel 6 and the B-pillar 701. The second pipe segment 402 is inclined relative to the first pipe segment 401 and the third pipe segment 403.

[0056] By setting the second pipe section 402, the length of the exhaust pipe 4 is further shortened, the overall weight of the exhaust assembly is reduced, and the vehicle weight is reduced.

[0057] As one implementation, the vehicle also includes an oscillating corrugated section 8, which is installed in the middle of the second pipe section 402 or the third pipe section 403.

[0058] As one implementation, the exhaust pipe 4 also includes a fourth pipe section 404. Along the direction of exhaust gas flow, the fourth pipe section 404 is connected to the rear end of the third pipe section 403, and when viewed vertically, the fourth pipe section 404 and the third pipe section 403 are on the same straight line.

[0059] Looking from front to back, the fourth pipe section 404 extends downward at an angle, causing the exhaust gas from the exhaust pipe to face the ground.

[0060] As one implementation, the vehicle also includes an exhaust hanger 9, which is mounted on the frame 7 and supports the second section 402 and / or the third section 403 of the exhaust pipe 4.

[0061] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

[0062] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A vehicle, characterized in that, include: Engine assembly (1); along the front-rear direction, the rear end of the engine assembly (1) forms an installation space (101). A muffler (2) is installed in the installation space (101) and a cavity (201) is formed inside the muffler (2). A three-way catalytic converter (3) is installed in the internal cavity (201), and the input end of the three-way catalytic converter (3) extends out of the muffler (2) to connect the input end of the three-way catalytic converter (3) to the engine assembly (1).

2. The vehicle according to claim 1, characterized in that, The vehicle also includes a transmission assembly (5), which is mounted on one side of the engine assembly (1) in the left-right direction; Along the front-rear direction, the rearmost end of the transmission assembly (5) is located behind the rearmost end of the engine assembly (1) to form an installation space (101) between the engine assembly (1) and the transmission assembly (5).

3. A vehicle according to claim 2, characterized in that, The muffler (2) includes a mounting opening (202) in the left-right direction, and the mounting opening (202) is located on the side of the muffler (2) away from the drive assembly (5); At least a portion of the three-way catalytic converter (3) extends outside the muffler (2) through the mounting opening (202), and the mounting opening (202) is sealed to the side wall of the three-way catalytic converter (3).

4. A vehicle according to claim 1, characterized in that, The vehicle also includes a drive shaft (501) connected to the engine assembly (1); The mounting space (101) is located above the drive shaft (501).

5. A vehicle according to claim 1, characterized in that, The vehicle also includes an exhaust pipe (4), the input end of which is connected to the muffler (2), and the output end of which extends to the left or right side of the vehicle.

6. A vehicle according to claim 5, characterized in that, The vehicle includes a drive shaft (501), front wheels (6) and a frame (7), the engine assembly (1) is mounted on the frame (7), and the front wheels (6) are connected to the engine assembly (1) via the drive shaft (501); The frame (7) includes a B-pillar (701), and the output end of the exhaust pipe (4) is located between the front wheel (6) and the B-pillar (701).

7. A vehicle according to claim 5, characterized in that, The exhaust pipe (4) includes a first pipe section (401), a second pipe section (402) and a third pipe section (403) connected in sequence, and the first pipe section (401) is connected to the muffler (2); Viewed from the top and bottom, the first pipe segment (401) extends in the front and back direction, the third pipe segment (403) extends in the left and right direction, and the second pipe segment (402) is inclined relative to the first pipe segment (401) and the third pipe segment (403).

8. A vehicle according to claim 7, characterized in that, The exhaust pipe (4) further includes a fourth pipe section (404), which is connected to the rear end of the third pipe section (403) along the direction of exhaust gas discharge; Viewed from the front and back direction, the fourth pipe segment (404) extends downward at an angle.

9. A vehicle according to claim 5, characterized in that, The muffler (2) includes a connecting pipe (203), one end of which is connected to the muffler (2) and the other end is located outside the muffler (2); The inlet of the exhaust pipe (4) is connected to the muffler (2) via the connecting pipe (203).

10. A vehicle according to claim 1, characterized in that, The muffler (2) has a relief groove (204) located at the top of the muffler (2); The input end of the three-way catalytic converter (3) extends into the recess (204).

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