A turbocharged muffler for automobile engines

Abstract

This utility model relates to the field of automotive engine technology, specifically to an automotive engine turbocharger muffler, including a muffler housing, a muffler cap connected to a flange at the other end of the muffler housing, an air filter inserted into one end of the muffler cap, and multiple sound-absorbing components fixedly connected to the middle of the muffler housing. The automotive engine turbocharger muffler proposed in this utility model mainly improves noise reduction efficiency by setting multiple sound-absorbing components inside the muffler housing, consisting of a first sound-absorbing cotton plate, a second sound-absorbing cotton ring, baffles, sound-absorbing cotton pads, and honeycomb sound insulation panels. Specifically, the exhaust gas drives the turbine fan to rotate, causing the first sound-absorbing cotton plate to rotate and agitate the air in multiple separate chambers divided by the second sound-absorbing cotton ring, increasing sound wave absorption efficiency. Multiple baffles block and reflect sound waves to the sound-absorbing cotton pads on one side of another baffle for absorption. The honeycomb sound insulation panel also blocks sound waves. This multiple noise reduction structure greatly increases the noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of automotive engine technology, specifically to an automotive engine turbocharger muffler. Background Technology

[0002] With the continuous advancement of automotive technology, engine technology is also constantly improving. A turbocharged engine is an internal combustion engine that forcibly increases the intake air volume through a turbocharger. It uses the exhaust gas from the engine to drive the turbine to rotate, which in turn drives the coaxial compressor to compress more air and send it into the cylinder, thereby improving combustion efficiency and power output. Compared with naturally aspirated engines of the same displacement, turbocharging technology can significantly improve power and torque without significantly increasing fuel consumption.

[0003] Chinese Patent CN214616756U discloses a turbocharged engine and automobile, including a turbocharger, an engine, and an adjustment mechanism. The adjustment mechanism includes a detection module, a pipeline module, a control module, and a data processing module. The detection module includes a compressor outlet air flow and pressure sensor and an engine intake air flow and pressure sensor. The pipeline module includes an intake bypass pipe and an exhaust bypass pipe. The control module includes an intake bypass solenoid valve and an exhaust bypass solenoid valve located on the intake bypass pipe. The data terminals of the compressor outlet air flow and pressure sensor, the engine intake air flow and pressure sensor, the intake bypass solenoid valve, and the exhaust bypass solenoid valve are respectively communicatively connected to the data processing module. The turbocharged engine and automobile provided by this utility model can improve the intake matching problem of the turbocharged engine, thereby ensuring the driving performance of the automobile.

[0004] The turbocharged engine described above and under existing technology uses exhaust gas to drive a turbine to rotate, thereby compressing the intake air, increasing the engine's intake volume, and enhancing power output. However, the turbocharger generates significant noise during operation. In existing technology, simple muffler structures are usually installed before and after the turbocharger, but these structures have poor noise reduction effects. There is a lack of corresponding high-efficiency automotive engine turbocharger muffler structures, which need to be improved and optimized. Utility Model Content

[0005] The purpose of this invention is to provide a turbocharged muffler for automobile engines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A turbocharged muffler for an automobile engine includes a muffler housing, an exhaust pipe fixedly connected to one end of the muffler housing, a muffler cap connected to the other end of the muffler housing via a flange, an intake pipe fixedly connected to one end of the muffler cap, an air filter inserted into one end of the muffler cap, and multiple sound-absorbing components fixedly connected to the middle of the muffler housing.

[0007] Preferably, a sealing ring is extruded between the muffler housing and the muffler cap.

[0008] Preferably, a limiting block is fixedly connected inside the muffler housing.

[0009] Preferably, one end of the intake pipe is fixedly connected to a first flange, and one end of the exhaust pipe is fixedly connected to a second flange.

[0010] Preferably, the multiple sound-absorbing components include a mounting frame, a baffle, and a honeycomb sound insulation panel; the mounting frame consists of two sets, each fixedly connected to one end of the muffler housing, with a rotating shaft rotatably connected to the middle of the mounting frame, and a turbine fan fixedly connected to one end of the rotating shaft; the baffle is fixedly connected to the inner wall of the muffler housing, and the honeycomb sound insulation panel is fixedly connected to the inner wall of the muffler housing.

[0011] Preferably, a first sound-absorbing cotton plate is fixedly connected to one end of the rotating shaft, and a spacer groove is provided in the middle of the first sound-absorbing cotton plate. A second sound-absorbing cotton ring is rotatably inserted into the spacer groove, and the second sound-absorbing cotton ring is fixedly connected to the inner wall of the silencer housing.

[0012] Preferably, a sound-absorbing cotton pad is fixedly connected to one end of the baffle.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model proposes a turbocharged muffler for automobile engines. It filters exhaust gas by installing an air filter at one end of the muffler housing and improves noise reduction efficiency by incorporating a multi-layered sound-absorbing assembly within the muffler housing, consisting of a first sound-absorbing cotton plate, a second sound-absorbing cotton ring, baffles, sound-absorbing cotton pads, and honeycomb sound insulation panels. The exhaust gas drives a turbine fan, which in turn rotates the first sound-absorbing cotton plate, agitating the air within the individual chambers divided by the second sound-absorbing cotton ring, thus increasing sound wave absorption efficiency. Multiple baffles block and reflect sound waves to the sound-absorbing cotton pads on one side of another baffle for absorption. The honeycomb sound insulation panels also block sound waves. This multi-layered noise reduction structure significantly enhances the noise reduction effect. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a turbocharged muffler for an automobile engine;

[0016] Figure 2 A partial structural cross-sectional view of a turbocharged muffler for an automobile engine;

[0017] Figure 3 for Figure 2 Enlarged diagram of part A in the middle.

[0018] In the diagram: 1. Muffler housing; 2. Exhaust pipe; 3. Muffler cap; 4. Intake pipe; 5. Air filter; 601. Mounting bracket; 602. Rotary shaft; 603. Turbine fan; 604. First sound-absorbing cotton board; 605. Spacing groove; 606. Second sound-absorbing cotton ring; 607. Baffle; 608. Sound-absorbing cotton pad; 609. Honeycomb sound insulation board; 7. Sealing ring; 8. Limiting block; 9. First flange; 10. Second flange. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-3 The present invention provides the following two preferred embodiments:

[0021] Example 1: A turbocharged muffler for an automobile engine includes a muffler housing 1, an exhaust pipe 2 fixedly connected to one end of the muffler housing 1, a muffler cap 3 flanged to the other end of the muffler housing 1, an intake pipe 4 fixedly connected to one end of the muffler cap 3, an air filter element 5 inserted into one end of the muffler cap 3, and a multi-stage sound-absorbing assembly fixedly connected to the middle of the muffler housing 1; a sealing ring 7 is squeezed between the muffler housing 1 and the muffler cap 3; a limiting block 8 is fixedly connected inside the muffler cap 3; a first flange 9 is fixedly connected to one end of the intake pipe 4, and a second flange 10 is fixedly connected to one end of the exhaust pipe 2.

[0022] In use, the air filter element 5 is installed at one end of the muffler cap 3 by the limiting block 8 to filter the exhaust gas and prevent carbon buildup inside the muffler and from being discharged into the atmosphere. It is then connected to one end of the muffler housing 1 by flange bolts, and a sealing ring 7 is installed between the two for sealing. The intake pipe 4 at one end of the muffler cap 3 is connected to the exhaust port of the turbocharger through the first flange 9, so that the exhaust gas is filtered through the air filter element 5 on the muffler and discharged through the exhaust pipe 2 at one end. The second flange 10 at one end of the exhaust pipe 2 is connected to the tailpipe.

[0023] Example 2: Based on Example 1, the multi-sound-absorbing component includes a mounting bracket 601, a baffle 607, and a honeycomb sound insulation panel 609. There are two sets of mounting brackets 601, each fixedly connected to one end of the muffler housing 1. A rotating shaft 602 is rotatably connected to the middle of the mounting bracket 601. A turbine fan 603 is fixedly connected to one end of the rotating shaft 602. The baffle 607 is fixedly connected to the inner wall of the muffler housing 1, and the honeycomb sound insulation panel 609 is fixedly connected to the inner wall of the muffler housing 1. A first sound-absorbing cotton plate 604 is fixedly connected to one end of the rotating shaft 602. A spacer groove 605 is provided in the middle of the first sound-absorbing cotton plate 604. A second sound-absorbing cotton ring 606 is rotatably inserted into the spacer groove 605, and the second sound-absorbing cotton ring 606 is fixedly connected to the inner wall of the muffler housing 1. A sound-absorbing cotton pad 608 is fixedly connected to one end of the baffle 607.

[0024] In use, exhaust gas is filtered through air filter 5 and blown towards turbofan 603, causing it to rotate. This, in turn, causes shaft 602 and first sound-absorbing cotton plate 604 to rotate. The first sound-absorbing cotton plate 604 has multiple sets of spacer grooves 605 in the middle, and multiple sets of rotating and interlocking second sound-absorbing cotton rings 606 divide the silencer's interior into several chambers, agitating the air within each chamber. This causes the sound wave energy in the exhaust gas to be blocked by honeycomb sound insulation plate 609, and some of the sound wave energy to be absorbed by the first sound-absorbing cotton plate 604 and the second sound-absorbing cotton rings 606. The remaining sound wave energy follows the exhaust gas through the first sound-absorbing cotton plate 604 to the baffle 607. Multiple sets of baffles 607 reflect the sound waves, which are then reflected to the sound-absorbing cotton pad 608 on the back of another set of baffles 607 for absorption. After multiple sets, a large amount of sound waves are absorbed again, with only a small amount being discharged, greatly increasing the noise reduction effect.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbocharged muffler for an automobile engine, comprising a muffler housing (1), characterized in that: One end of the muffler housing (1) is fixedly connected to an exhaust pipe (2), and the other end of the muffler housing (1) is flanged to a muffler cap (3). One end of the muffler cap (3) is fixedly connected to an air intake pipe (4), and one end of the muffler cap (3) is inserted with an air filter element (5). Multiple sound-absorbing components are fixedly connected in the middle of the muffler housing (1).

2. The automobile engine turbocharger muffler according to claim 1, characterized in that: A sealing ring (7) is squeezed between the muffler housing (1) and the muffler cap (3).

3. The automobile engine turbocharger muffler according to claim 1, characterized in that: The muffler cap (3) is fixedly connected to a limiting block (8).

4. The automobile engine turbocharger muffler according to claim 1, characterized in that: The intake pipe (4) is fixedly connected to a first flange (9) at one end, and the exhaust pipe (2) is fixedly connected to a second flange (10) at one end.

5. The automobile engine turbocharger muffler according to claim 1, characterized in that: The multiple sound-absorbing components include a mounting bracket (601), a baffle (607), and a honeycomb sound insulation panel (609). There are two sets of mounting brackets (601). The mounting brackets (601) are fixedly connected to one end of the muffler housing (1). A rotating shaft (602) is rotatably connected to the middle of the mounting bracket (601). A turbo fan (603) is fixedly connected to one end of the rotating shaft (602). The baffle (607) is fixedly connected to the inner wall of the muffler housing (1). The honeycomb sound insulation panel (609) is fixedly connected to the inner wall of the muffler housing (1).

6. The automobile engine turbocharger muffler according to claim 5, characterized in that: One end of the rotating shaft (602) is fixedly connected to a first sound-absorbing cotton plate (604). The first sound-absorbing cotton plate (604) has a spacer groove (605) in the middle. A second sound-absorbing cotton ring (606) is rotatably inserted into the spacer groove (605). The second sound-absorbing cotton ring (606) is fixedly connected to the inner wall of the silencer housing (1).

7. A turbocharged muffler for an automobile engine according to claim 5, characterized in that: A sound-absorbing cotton pad (608) is fixedly connected to one end of the baffle (607).

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