CN201546786U - Exhaust muffler for gasoline engines - Google Patents
Exhaust muffler for gasoline engines Download PDFInfo
- Publication number
- CN201546786U CN201546786U CN2009202137287U CN200920213728U CN201546786U CN 201546786 U CN201546786 U CN 201546786U CN 2009202137287 U CN2009202137287 U CN 2009202137287U CN 200920213728 U CN200920213728 U CN 200920213728U CN 201546786 U CN201546786 U CN 201546786U
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- China
- Prior art keywords
- dish
- main
- pipe
- cavity
- suction tude
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
An exhaust muffler for gasoline engines comprises a premuffler and a main muffler. The premuffler consists of a barrel. An air inlet pipe, an inner pipe, an air outlet pipe, a first diaphram plate and a second diaphram plate are arranged in the barrel along the axial direction. A plurality of muffling holes are arranged on the pipe wall of the air outlet pipe arranged between the second diaphram plate and one end of the barrel. The main muffler is a sealed cavity consisting of an upper casing and a lower casing. A main air inlet pipe, a main inner pipe, a main exhaust pipe and a third diaphram plate are arranged in the cavity, muffling holes are arranged on the pipe wall of the main air inlet pipe at the two sides of the third diaphram plate, and the air outlet pipe is connected with the main air inlet pipe. The main muffler adopts the main inner pipe in a bent arc shape, glass fibers are arranged in the cavity between the second diaphram plate of the premuffler and the other end of the barrel, and glass fibers are arranged in the space between the third diaphram plate of the main muffler and one end of the cavity. Exhaust back pressure, noise and engine power losses are reduced.
Description
Technical field:
The utility model relates to vehicle, relates in particular to the vent systems of automobile, particularly a kind ofly is used for petrolic exhaust silencer.
Background technique:
During the motor car engine combustion gas, the pressure of waste gas changes rapidly at the exhaust pipe mouth place, produces vibration, and vibration produces noise.In the prior art, install silencing apparatus in the outlet pipe of motor car engine, silencing apparatus is used to consume flowed energy, reduces the pressure surge amplitude of air-flow, can play the effect that reduces noise.But in the silencing apparatus of existing motor car engine, it is big that air communication is crossed resistance, the exhaust back pressure height, and the engine power loss that causes is big, idle noise and Running noise are bigger, and the power performance of automobile is descended.
Summary of the invention:
The purpose of this utility model provides a kind of automobile exhaust muffler, described this automobile exhaust muffler will solve in the prior art automotive muffler air communication, and to cross resistance big, the exhaust back pressure height, the engine power loss that causes is big, idle noise and the bigger technical problem of Running noise.
This petrolic exhaust silencer that is used for of the present utility model, comprise a prime silencing apparatus and a main silencing apparatus, wherein, described prime silencing apparatus is made of a cylindrical shell, in described cylindrical shell, axially be provided with suction tude along it, interior pipe and steam outlet pipe, described suction tude one end and described airtight connection of cylindrical shell one end, the described suction tude the other end with described in Guan Yiduan is airtight is connected, the pipe the other end stretches in the described steam outlet pipe in described, the described steam outlet pipe the other end and described airtight connection of the cylindrical shell the other end, in described cylindrical shell, also be provided with first every dish with second every dish, described first is connected with described cylinder inboard wall is airtight every coiling every dish and second, described first every dish be sheathed on described in pipe middle part and with described in manage airtight the connection, described second is connected in the middle part of dish is sheathed on described steam outlet pipe and with described steam outlet pipe is airtight, described second every the dish and the cylindrical shell the other end between the steam outlet pipe tube wall be provided with a plurality of sound attenuation holes, described main silencing apparatus constitutes an airtight cavity by upper shell and lower shell body, be provided with main suction tude in the described cavity, pipe and main exhaust in main, described main suction tude one end opening is arranged at described cavity one end, the described main suction tude the other end stretches in the described cavity, pipe is curved bend pipe in the described master, Guan Yiduan is positioned at described cavity in the described master, the pipe the other end and described airtight connection of main exhaust one end in the described master, described main exhaust the other end opening is arranged at the described cavity the other end, be provided with the 3rd every dish in the described cavity, the described the 3rd every the dish be connected with the lower shell body inwall is airtight with described upper shell, the described the 3rd in the middle part of dish is sheathed on described main suction tude, and with described airtight connection of main suction tude, the pipe two ends all are arranged in the described the 3rd on dish in the described master, and with the described the 3rd every the dish airtight the connection, the described main suction tude the other end is provided with blanking cover, be positioned at the described the 3rd tube wall and be provided with sound attenuation hole every the main suction tude of coiling both sides, the described the 3rd is provided with a plurality of sound attenuation holes every dish, and described steam outlet pipe is connected with described main suction tude.
Further, described second every the dish and the described cylindrical shell the other end between cavity in be provided with glass fiber.
Further, the described the 3rd every the dish and described cavity one end between the space in be provided with glass fiber.
Further, on dish, along the circumferential direction evenly be provided with a plurality of apertures described first.
Working principle of the present utility model is: the tail gas of motor vehicle emission at first enters the prime silencing apparatus, reduced exhaust back pressure, pass through the further reducing noise of main silencing apparatus again, be provided with glass fiber, can strengthen noise reduction at prime silencing apparatus and main silencing apparatus.
The utility model is compared with prior art, and its effect is actively with tangible.Main silencing apparatus of the present utility model adopts the interior pipe of the master of arc-shaped bend, and the prime silencing apparatus second every the dish and the cylindrical shell the other end between cavity in be provided with glass fiber, the main silencing apparatus the 3rd every the dish and cavity one end between the space in be provided with glass fiber, reduce exhaust back pressure, reduced noise and engine power loss.
Description of drawings:
Fig. 1 is the prime acoustic wave filter structure schematic representation of automobile exhaust muffler of the present utility model.
Fig. 2 is the profile schematic representation of the main silencing apparatus of automobile exhaust muffler of the present utility model.
Fig. 3 is the plan view of the main silencing apparatus of automobile exhaust muffler of the present utility model.
Fig. 4 is the plan view of the main silencing apparatus of automobile exhaust muffler of the present utility model.
Fig. 5 is the left view of the main silencing apparatus of automobile exhaust muffler of the present utility model.
Fig. 6 is the B-B sectional view among Fig. 3.
Fig. 7 is that first among Fig. 1 is every the dish schematic representation.
Embodiment:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, the utility model provides a kind of petrolic exhaust silencer that is used for, comprise a prime silencing apparatus 1 and a main silencing apparatus 2, wherein, described prime silencing apparatus 1 is made of a cylindrical shell 11, in described cylindrical shell 11, axially be provided with suction tude 12 along it, interior pipe 13 and steam outlet pipe 14, described suction tude 12 1 ends and described airtight connection of cylindrical shell 11 1 ends, described suction tude 12 the other ends with described in pipe 13 1 ends are airtight is connected, pipe 13 the other ends stretch in the described steam outlet pipe 14 in described, described steam outlet pipe 14 the other ends and described airtight connection of cylindrical shell 11 the other ends, in described cylindrical shell 11, also be provided with first every coiling 15 and second every dish 16, described first every dish 15 with second every dish 16 and described airtight connection of cylindrical shell 11 inwalls, described first every dish 15 be sheathed on described in pipe 13 middle parts and with described in manage airtight the connection, described second every the dish 16 be sheathed on described steam outlet pipe 14 middle parts and with described 14 airtight connections of steam outlet pipe, described second every the dish 16 and cylindrical shell 11 the other ends between steam outlet pipe 14 tube walls be provided with a plurality of sound attenuation holes, described main silencing apparatus 2 is welded together by upper shell 21 and lower shell body 22 and constitutes an airtight cavity, be provided with main suction tude 23 in the described cavity, pipe 24 and main exhaust 25 in main, described main suction tude 23 1 end openings are arranged at described cavity one end, described main suction tude 23 the other ends stretch in the described cavity, pipe 24 is curved bend pipes in the described master, pipe 24 1 ends are positioned at described cavity in the described master, pipe 24 the other ends and described airtight connection of main exhaust 25 1 ends in the described master, described main exhaust 25 the other end openings are arranged at the described cavity the other end, be provided with the 3rd in the described cavity every dish 26, the described the 3rd every dish 26 and described upper shell 21 and airtight connection of lower shell body 22 inwalls, the described the 3rd 26 is sheathed on described main suction tude 23 middle parts every dish, and with described main 23 airtight connections of suction tude, pipe 24 two ends all are arranged in the described the 3rd on dish 26 in the described master, and with the described the 3rd every the dish 26 airtight connections, described main suction tude 23 the other ends are provided with blanking cover 27, be positioned at the described the 3rd tube wall and be provided with sound attenuation hole every the main suction tude 23 of coiling 26 both sides, the described the 3rd 26 is provided with a plurality of sound attenuation holes every dish, and described steam outlet pipe 14 is connected with described main suction tude 23.
Further, described second every the dish 16 and described cylindrical shell 11 the other ends between cavity in be provided with glass fiber 3.
Further, the described the 3rd every the dish 26 and described cavity one end between the space in be provided with glass fiber 3.
Further, on dish 15, along the circumferential direction evenly be provided with a plurality of apertures 17 described first.
Claims (4)
1. one kind is used for petrolic exhaust silencer, comprise a prime silencing apparatus and a main silencing apparatus, it is characterized in that: described prime silencing apparatus is made of a cylindrical shell, in described cylindrical shell, axially be provided with suction tude along it, interior pipe and steam outlet pipe, described suction tude one end and described airtight connection of cylindrical shell one end, the described suction tude the other end with described in Guan Yiduan is airtight is connected, the pipe the other end stretches in the described steam outlet pipe in described, the described steam outlet pipe the other end and described airtight connection of the cylindrical shell the other end, in described cylindrical shell, also be provided with first every dish with second every dish, described first is connected with described cylinder inboard wall is airtight every coiling every dish and second, described first every dish be sheathed on described in pipe middle part and with described in manage airtight the connection, described second is connected in the middle part of dish is sheathed on described steam outlet pipe and with described steam outlet pipe is airtight, described second every the dish and the cylindrical shell the other end between the steam outlet pipe tube wall be provided with a plurality of sound attenuation holes, described main silencing apparatus constitutes an airtight cavity by upper shell and lower shell body, be provided with main suction tude in the described cavity, pipe and main exhaust in main, described main suction tude one end opening is arranged at described cavity one end, the described main suction tude the other end stretches in the described cavity, pipe is curved bend pipe in the described master, Guan Yiduan is positioned at described cavity in the described master, the pipe the other end and described airtight connection of main exhaust one end in the described master, described main exhaust the other end opening is arranged at the described cavity the other end, be provided with the 3rd every dish in the described cavity, the described the 3rd every the dish be connected with the lower shell body inwall is airtight with described upper shell, the described the 3rd in the middle part of dish is sheathed on described main suction tude, and with described airtight connection of main suction tude, the pipe two ends all are arranged in the described the 3rd on dish in the described master, and with the described the 3rd every the dish airtight the connection, the described main suction tude the other end is provided with blanking cover, be positioned at the described the 3rd tube wall and be provided with sound attenuation hole every the main suction tude of coiling both sides, the described the 3rd is provided with a plurality of sound attenuation holes every dish, and described steam outlet pipe is connected with described main suction tude.
2. as claimed in claim 1ly be used for petrolic exhaust silencer, it is characterized in that: be provided with glass fiber in described second the cavity between the dish and the described cylindrical shell the other end.
3. as claimed in claim 1ly be used for petrolic exhaust silencer, it is characterized in that: be provided with glass fiber in the described the 3rd the space between dish and described cavity one end.
4. as claimed in claim 1ly be used for petrolic exhaust silencer, it is characterized in that: on dish, along the circumferential direction evenly be provided with a plurality of apertures described first.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202137287U CN201546786U (en) | 2009-11-17 | 2009-11-17 | Exhaust muffler for gasoline engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202137287U CN201546786U (en) | 2009-11-17 | 2009-11-17 | Exhaust muffler for gasoline engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546786U true CN201546786U (en) | 2010-08-11 |
Family
ID=42601958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202137287U Expired - Fee Related CN201546786U (en) | 2009-11-17 | 2009-11-17 | Exhaust muffler for gasoline engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285836A (en) * | 2016-10-14 | 2017-01-04 | 上海天纳克排气系统有限公司 | Acoustic filter for automobile exhaust system |
-
2009
- 2009-11-17 CN CN2009202137287U patent/CN201546786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285836A (en) * | 2016-10-14 | 2017-01-04 | 上海天纳克排气系统有限公司 | Acoustic filter for automobile exhaust system |
| CN106285836B (en) * | 2016-10-14 | 2019-03-15 | 上海天纳克排气系统有限公司 | Silencer for automobile exhaust system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI HONGHU EXHAUST SYSTEM CO., LTD. Free format text: FORMER NAME: HONGHU MUFFLER FACTORY, SHANGHAI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201805, Anting Town, Shanghai, Jiading District and 1200 quiet road Patentee after: Shanghai Honghu Exhaust System Co., Ltd. Address before: 201805, Anting Town, Shanghai, Jiading District and 1200 quiet road Patentee before: Honghu Muffler Factory, Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20171117 |