CN219452205U

CN219452205U - Engine exhaust device

Info

Publication number: CN219452205U
Application number: CN202321652104.1U
Authority: CN
Inventors: 王丹; 李兴华; 张金荣; 王丙金; 王晓荣
Original assignee: Shandong Aohui Vehicle Manufacturing Co ltd
Current assignee: Shandong Aohui Vehicle Manufacturing Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-08-01
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses an engine exhaust device, which comprises a connecting pipe and a silencing mechanism, wherein the silencing mechanism is arranged at one end of the connecting pipe, a shell in the silencing mechanism is communicated with one end of the connecting pipe through a pipeline flange, the engine exhaust device also comprises a mounting plate, an exhaust silencing pipe, a supporting plate, an air inlet hole and an air inlet silencing pipe, the mounting plate is arranged at two ends of an inner cavity of the shell, the exhaust silencing pipe is communicated with the middle part of the inner side of the mounting plate, and the air inlet end of the exhaust silencing pipe is communicated with the air outlet end of the connecting pipe; the utility model has the advantages of good silencing effect by arranging the silencing mechanism, not only can reduce noise during exhaust, but also can reduce noise and protect surrounding environment, the exhaust silencing pipe is utilized for primary noise reduction, and the air current is completed by matching the mounting plate, the support plate and the air inlet hole, so that noise is reduced, then air is introduced through the air inlet silencing pipe, and noise reduction treatment work can be completed by discharging after silencing operation.

Description

Engine exhaust device

Technical Field

The utility model relates to the technical field of engine exhaust, in particular to an engine exhaust device.

Background

An engine is a machine that converts other forms of energy into mechanical energy, and the engine operates to exhaust gases, i.e., to perform an exhaust operation. In the prior art, the exhaust device is just an exhaust pipe, and the exhaust pipe is used for connecting an engine exhaust interface and the outside, and in the connecting process, the exhaust pipe needs to pass through or bypass other accessories. Because the exhaust pipe has high temperature in the long-time exhaust process, the peripheral parts of the exhaust device are easy to damage.

Aiming at the technical problems, for example, publication No. CN210264876U discloses an engine exhaust device, and a protective layer is sleeved outside the heat insulation layer, and the heat insulation layer is made of insulating cotton and the like and is easy to wear, so that the protective layer can play a role in protecting the heat insulation layer;

the above patent also suffers from the following disadvantages: because the engine is in its exhaust gas volume increase when high frequency operation, can produce the noise this moment, the noise when this patent technical scheme can't handle exhaust to can cause environmental noise pollution.

Disclosure of Invention

The utility model aims to provide an engine exhaust device which has the advantage of reducing noise of exhaust noise, improves the noise reduction effect, and can ensure that the surrounding environment is protected when an automobile runs so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an engine exhaust device comprises a connecting pipe and a silencing mechanism, wherein the silencing mechanism is arranged at one end of the connecting pipe, and a shell in the silencing mechanism is communicated with one end of the connecting pipe through a pipeline flange;

still including mounting panel, exhaust muffler, backup pad, inlet port and inlet muffler, the mounting panel is installed in the both ends of shell inner chamber, exhaust muffler communicates in the inboard middle part of mounting panel, the inlet end of exhaust muffler communicates with the exhaust end of connecting pipe, the backup pad is installed in the middle part of shell inner chamber, the inlet port is seted up in the backup pad, inlet muffler is provided with two, and two inlet muffles are respectively installed in the one end of backup pad.

Preferably, one end of the housing is communicated with an auxiliary mechanism through a pipeline, the auxiliary mechanism comprises a supporting component and a discharging component, the supporting component is arranged at one end of the housing, and the discharging component is arranged inside the supporting component.

Preferably, the support assembly comprises a connecting shell and a bottom plate, wherein the connecting shell is communicated with one end of the shell through a pipeline, and the bottom plate is respectively arranged at two ends of the bottom of the inner cavity of the connecting shell.

Preferably, the exhaust assembly comprises a muffler and an air outlet pipe, the muffler is arranged at the top of the bottom plate, and the air outlet pipe is respectively communicated with two sides of one end of the muffler.

Preferably, one end of the air outlet pipe penetrates through the outer end of the connecting shell, and the other end of the silencer is communicated with the exhaust end of the shell through a pipeline.

Preferably, the other end of the connecting pipe is provided with an accelerating exhaust mechanism, the accelerating exhaust mechanism comprises a flow velocity component and an auxiliary component, the auxiliary component is arranged at the other end of the connecting pipe, and the flow velocity component is arranged in the auxiliary component.

Preferably, the auxiliary assembly comprises an outer cylinder and an exhaust bucket, wherein the outer cylinder is communicated with the other end of the connecting pipe through a pipeline flange, and the exhaust bucket is arranged at one end of an inner cavity of the outer cylinder.

Preferably, the flow rate assembly comprises a bracket and an exhaust fan, wherein the bracket is arranged on one side of the inner cavity of the outer cylinder, and the exhaust fan is arranged on one side of the bracket.

Preferably, one end of the exhaust hopper penetrates to the outer side of the outer cylinder, the exhaust hopper and the exhaust fan are oppositely arranged, and the air inlet end of the exhaust hopper is communicated with the air outlet end of the connecting pipe.

Preferably, one end of the outer cylinder is communicated with a three-way catalyst through a pipeline flange, and one end of the three-way catalyst is communicated with an exhaust connecting pipe through a pipeline flange.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has the advantage of good silencing effect through the arrangement of the silencing mechanism, not only can reduce noise during exhaust, but also can reduce noise and protect surrounding environment, the exhaust silencing pipe is utilized for primary noise reduction, the air current is completed through the cooperation of the mounting plate, the support plate and the air inlet hole, so that noise is reduced, then air is introduced through the air inlet silencing pipe, and noise reduction treatment work can be completed after noise reduction operation is performed and then discharged.

The utility model can further carry out auxiliary noise reduction through the arrangement of the auxiliary mechanism, thereby improving the noise reduction effect again, the muffler can carry out noise reduction work, and the exhaust accelerating mechanism can be used for accelerating the exhaust efficiency of the waste gas, thereby achieving auxiliary forced exhaust work.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an exhaust fan according to the present utility model;

FIG. 3 is a schematic view of an exhaust muffler according to the present utility model;

fig. 4 is a schematic view of the muffler structure of the present utility model.

In the figure: 1. a connecting pipe; 2. a silencing mechanism; 21. a housing; 22. a mounting plate; 23. an exhaust muffler pipe; 24. a support plate; 25. an air inlet hole; 26. an intake silencer pipe; 3. an accelerating exhaust mechanism; 31. an outer cylinder; 32. a bracket; 33. an exhaust fan; 34. an exhaust hopper; 4. an auxiliary mechanism; 41. a connection housing; 42. a bottom plate; 43. a muffler; 44. an air outlet pipe; 5. a three-way catalyst; 6. and (5) an exhaust connecting pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides an engine exhaust apparatus, which includes a connection pipe 1 and a silencing mechanism 2, wherein the silencing mechanism 2 is disposed at one end of the connection pipe 1, a housing 21 in the silencing mechanism 2 is connected to one end of the connection pipe 1 through a pipe flange, and exhaust gas leakage is avoided by using the housing 21 and internal components are supported;

the air inlet silencer comprises a shell 21, an air inlet silencer and an air inlet silencer, and is characterized by further comprising a mounting plate 22, an air outlet silencer 23, a supporting plate 24, air inlets 25 and air inlet silencers 26, wherein the mounting plate 22 is mounted at two ends of the inner cavity of the shell 21, the air outlet silencer 23 is communicated with the middle part of the inner side of the mounting plate 22, the air inlet end of the air outlet silencer 23 is communicated with the air outlet end of the connecting pipe 1, the supporting plate 24 is mounted at the middle part of the inner cavity of the shell 21, the air inlets 25 are formed in the supporting plate 24, two air inlet silencers 26 are arranged, and the two air inlet silencers 26 are mounted at one end of the supporting plate 24 respectively;

the mounting plate 22 facilitates the auxiliary support mounting work of the two groups of air inlet silencing pipes 26 and the single group of exhaust silencing pipes 23, and the exhaust silencing pipes 23 perform the silencing work during exhaust, the cooperation of the support plate 24 and the air inlet holes 25 perform the flow of exhaust gas so as to enter the air inlet silencing pipes 26, and the air inlet silencing pipes 26 perform the air inlet silencing work.

During operation, waste gas can directly be discharged to the exhaust silencer pipe 23 through the pipeline, can directly discharge after the silencing treatment of the exhaust silencer pipe 23, then can form two gas spaces through the inlet port 25 between two sets of mounting plates 22 and the support plate 24, can be discharged by the exhaust silencer pipe 23 on the right side, and flow to the left side, then get into the intake silencer pipe 26, and the silencing treatment is carried out by the intake silencer pipe 26 again, so that the silencing treatment can be effectively carried out, and noise reduction is carried out in a reflux mode.

As can be seen from fig. 3, the exhaust muffler 23 and the intake muffler 26 have the same structure, and are both composed of two parts, the illustrated mesh filling part is used for air inlet and outlet, the other part is a sealed pipe section, the exhaust muffler 23 and the intake muffler 26 are arranged opposite to each other, and the two parts are separated by the supporting plate 24, so that the exhaust gas flowing between the exhaust muffler 23 and the intake muffler 26 is carried out by means of the air inlet 25.

Preferably, the one end of shell 21 has assist mechanism 4 through the pipeline intercommunication, and assist mechanism 4 includes supporting component and exhaust subassembly, and supporting component sets up in the one end of shell 21, and exhaust subassembly sets up in supporting component's inside, utilizes the cooperation between supporting component and the exhaust subassembly, can be used to play the noise treatment work before the afterbody discharges to increase its noise treatment's effect once more.

The supporting component comprises a connecting shell 41 and a bottom plate 42, the connecting shell 41 is communicated with one end of the shell 21 through a pipeline, the bottom plate 42 is respectively arranged at two ends of the bottom of an inner cavity of the connecting shell 41, and internal components of the supporting component can be supported and arranged by utilizing the cooperation of the connecting shell 41 and the bottom plate 42.

Wherein, the exhaust assembly includes muffler 43 and outlet duct 44, and muffler 43 installs in the top of bottom plate 42, and outlet duct 44 communicates in the both sides of muffler 43 one end respectively, utilizes muffler 43 can directly carry out the amortization to the waste gas of intake, and outlet duct 44 can directly discharge the tail gas after the processing.

One end of the air outlet pipe 44 penetrates through the outer end of the connection shell 41, and the other end of the muffler 43 is communicated with the air outlet end of the shell 21 through a pipeline, so that air inlet and outlet work is facilitated.

After the noise reduction and noise elimination treatment is completed, the noise enters the muffler 43 directly through the pipeline, the muffler 43 performs noise reduction treatment work, then the noise reduction auxiliary work can be realized by discharging the noise through the air outlet pipe 44, and the bottom plate 42 can stably mount and support the muffler 43.

Further, the other end of the connecting pipe 1 is provided with an accelerating exhaust mechanism 3, the accelerating exhaust mechanism 3 comprises a flow velocity component and an auxiliary component, the auxiliary component is arranged at the other end of the connecting pipe 1, the flow velocity component is arranged inside the auxiliary component, the auxiliary component is utilized to assist in exhausting and support and install the flow velocity component inside the auxiliary component, and the flow velocity component plays a role in accelerating the forced exhaust of waste tail gas.

In addition, the auxiliary assembly comprises an outer cylinder 31 and an exhaust bucket 34, wherein the outer cylinder 31 is communicated with the other end of the connecting pipe 1 through a pipeline flange, the exhaust bucket 34 is arranged at one end of the inner cavity of the outer cylinder 31, the outer cylinder 31 can be utilized to support internal components, and the exhaust bucket 34 is beneficial to centralizing exhaust gas to one end for discharge.

In addition, the flow rate assembly comprises a bracket 32 and an exhaust fan 33, wherein the bracket 32 is arranged on one side of the inner cavity of the outer cylinder 31, the exhaust fan 33 is arranged on one side of the bracket 32, so that the exhaust fan 33 is convenient to install, and the exhaust fan 33 is convenient to force the exhaust of the exhaust gas and increase the speed during the exhaust.

In addition, one end of the exhaust hopper 34 penetrates to the outside of the outer cylinder 31, the exhaust hopper 34 is arranged opposite to the exhaust fan 33, and the air inlet end of the exhaust hopper 34 is communicated with the air outlet end of the connecting pipe 1, so that concentrated discharge work can be directly performed during forced air discharge.

In operation, the exhaust fan 33 is started in advance, and exhaust gas treated by the three-way catalyst 5 is led and discharged to the inside of the exhaust hopper 34 by the exhaust fan 33 so as to increase the flow rate in the discharge thereof and to make the exhaust gas be subjected to forced discharge treatment thereof.

Still further, one end of the outer cylinder 31 is communicated with the three-way catalyst 5 through a pipeline flange, one end of the three-way catalyst 5 is communicated with the exhaust connecting pipe 6 through a pipeline flange, the three-way catalyst 5 is utilized to perform the treatment evolution work of waste gas, and the exhaust connecting pipe 6 is convenient to be communicated with an exhaust end pipeline of the engine.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An engine exhaust apparatus, characterized in that: the device comprises a connecting pipe (1) and a silencing mechanism (2), wherein the silencing mechanism (2) is arranged at one end of the connecting pipe (1), and a shell (21) in the silencing mechanism (2) is communicated with one end of the connecting pipe (1) through a pipeline flange;

still including mounting panel (22), exhaust silencer (23), backup pad (24), inlet port (25) and inlet silencer (26), mounting panel (22) are installed in the both ends of shell (21) inner chamber, exhaust silencer (23) communicate in the inboard middle part of mounting panel (22), the inlet end of exhaust silencer (23) communicates with the exhaust end of connecting pipe (1), backup pad (24) are installed in the middle part of shell (21) inner chamber, inlet port (25) are seted up on backup pad (24), inlet silencer (26) are provided with two, and two inlet silencer (26) are respectively installed in the one end of backup pad (24).

2. An engine exhaust apparatus according to claim 1, wherein: one end of the shell (21) is communicated with an auxiliary mechanism (4) through a pipeline, the auxiliary mechanism (4) comprises a supporting component and a discharging component, the supporting component is arranged at one end of the shell (21), and the discharging component is arranged inside the supporting component.

3. An engine exhaust apparatus according to claim 2, wherein: the support assembly comprises a connecting shell (41) and a bottom plate (42), wherein the connecting shell (41) is communicated with one end of the outer shell (21) through a pipeline, and the bottom plate (42) is respectively arranged at two ends of the bottom of an inner cavity of the connecting shell (41).

4. An engine exhaust according to claim 3, wherein: the exhaust assembly comprises a silencer (43) and an air outlet pipe (44), the silencer (43) is arranged at the top of the bottom plate (42), and the air outlet pipe (44) is respectively communicated with two sides of one end of the silencer (43).

5. An engine exhaust apparatus according to claim 4, wherein: one end of the air outlet pipe (44) penetrates through the outer end of the connecting shell (41), and the other end of the silencer (43) is communicated with the exhaust end of the shell (21) through a pipeline.

6. An engine exhaust apparatus according to claim 1, wherein: the other end of the connecting pipe (1) is provided with an accelerating exhaust mechanism (3), the accelerating exhaust mechanism (3) comprises a flow velocity component and an auxiliary component, the auxiliary component is arranged at the other end of the connecting pipe (1), and the flow velocity component is arranged in the auxiliary component.

7. An engine exhaust apparatus according to claim 6, wherein: the auxiliary assembly comprises an outer cylinder (31) and an exhaust hopper (34), wherein the outer cylinder (31) is communicated with the connecting pipe (1) through a pipeline flange, and the exhaust hopper (34) is arranged at one end of the inner cavity of the outer cylinder (31).

8. An engine exhaust apparatus according to claim 7, wherein: the flow velocity assembly comprises a support (32) and an exhaust fan (33), wherein the support (32) is arranged on one side of an inner cavity of the outer cylinder (31), and the exhaust fan (33) is arranged on one side of the support (32).

9. An engine exhaust apparatus according to claim 8, wherein: one end of the exhaust hopper (34) penetrates to the outer side of the outer cylinder (31), the exhaust hopper (34) is arranged opposite to the exhaust fan (33), and the air inlet end of the exhaust hopper (34) is communicated with the air outlet end of the connecting pipe (1).

10. An engine exhaust apparatus according to claim 9, wherein: one end of the outer cylinder (31) is communicated with a three-way catalyst (5) through a pipeline flange, and one end of the three-way catalyst (5) is communicated with an exhaust connecting pipe (6) through the pipeline flange.