CN206903726U - A kind of acoustic wave filter structure - Google Patents
A kind of acoustic wave filter structure Download PDFInfo
- Publication number
- CN206903726U CN206903726U CN201720326971.4U CN201720326971U CN206903726U CN 206903726 U CN206903726 U CN 206903726U CN 201720326971 U CN201720326971 U CN 201720326971U CN 206903726 U CN206903726 U CN 206903726U
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- chamber
- air
- aperture
- flow
- blast pipe
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Abstract
The utility model belongs to silencer technical field, a kind of acoustic wave filter structure is specifically disclosed, the acoustic wave filter structure includes 5 separate chambers, and flared tube, air inlet pipe and the blast pipe that water conservancy diversion is realized between different chamber are arranged on, the air-flow for being provided with secondary air water conservancy diversion in air inlet pipe and blast pipe according to position passes through hole；It can be very good to abate the noise, suitable exhaust back pressure can be obtained, after tested, the exhaust back pressure of the silencer of the structure under overflow situation is 1155 ~ 1563mmAq, can be with the demand of fuel automobile engine.
Description
Technical field
The utility model belongs to silencer technical field, specifically discloses a kind of acoustic wave filter structure.
Background technology
It is well known that during the use of fuel-engined vehicle, its silencer rationally suitable exhaust back pressure to fuel-engined vehicle
The normal operation and environment of engine are very significant considering that.Exhaust back pressure is excessive, causes charge loss to increase, engine combustion
Burn efficiency to decline, power output reduces, and fuel economy deteriorates；Exhaust back pressure is too small to increase gas extraction system development cost,
Sound quality is deteriorated, and noise is excessive, can cause environmental pollution.Therefore rational exhaust back pressure is most important to the performance of engine,
The exhaust back pressure of silencer preferably must be held in defined scope.
Utility model content
The utility model is directed to the work requirements of fuel automobile engine, there is provided a kind of acoustic wave filter structure, the structure are eliminated the noise
Exhaust back pressure of the device under overflow situation is 1155 ~ 1563mmAq, can be with the demand of fuel automobile engine.
The technical solution adopted in the utility model is as follows：
A kind of acoustic wave filter structure, including muffler body, the body front end are connected with adapter, use are connected with afterbody barrel
In the tail pipe of discharge gas；The main body includes cylinder, and the barrel front end is provided with drive end bearing bracket, and rear end is provided with rear end cap, passes through front end
Lid and rear end cap, cylinder is interior to form silencer working chamber, is disposed with silencer working chamber along body centre direction of principal axis
Perpendicular to the dividing plate I of body centre axle, dividing plate IV, dividing plate II, dividing plate III, pass through the buffer action of dividing plate, silencer working chamber
It is divided into independent chamber one, chamber two, chamber three, chamber four, chamber five successively, the tail pipe for discharge gas is located at
On the barrel of chamber five；It is characterized in that：
The flared tube parallel to body centre direction of principal axis is provided with the silencer chamber body, the flared tube is across chamber
First, chamber two, chamber three, fixed by the hole on drive end bearing bracket, dividing plate I and dividing plate IV, its one end connecting tubes, the other end
It is deep into chamber three, realizes and air-flow is introduced into chamber three；
The air inlet pipe parallel to body centre direction of principal axis is additionally provided with the silencer chamber body, the air inlet pipe is across chamber
Three chambers, chamber two, chamber one, fixed by the hole on dividing plate IV, dividing plate I, one end connecting chamber three, the other end reaches chamber
One, realize and the gas of chamber three is transported in chamber one, be additionally provided with the silencer chamber body parallel to body centre axle side
To blast pipe, the blast pipe across chamber one, chamber two, chamber three, chamber four, chamber five, by dividing plate I, dividing plate IV,
Hole on dividing plate II, dividing plate III is fixed, and one end is located in chamber one, and the other end is located in chamber five, for by the gas of chamber one
Body is transported in chamber five, is further discharged by the tail pipe being connected on chamber five；
The air inlet pipe, which is located on the part of chamber one towards blast pipe face, is provided with some equally distributed lead to for air-flow
The aperture one crossed；
The air inlet pipe, which is located on the part of chamber two towards blast pipe face, is provided with some equally distributed lead to for air-flow
The aperture two crossed；
The blast pipe is located at a chamber part and passes through hole one provided with some equally distributed air-flows；
The part that the blast pipe is located at chamber two passes through hole two provided with some equally distributed air-flows；
The hole for airflow between chamber three and chamber four is additionally provided with the dividing plate II；
Further, the silencer cylinder length is 500mm, barrel diameter 180mm, the flared tube, air inlet pipe
Pipe diameter with blast pipe is 42mm；
The aperture of the aperture one is less than the aperture of the aperture two, and the distribution density of the aperture one is more than the aperture
The distribution density in two aperture；The air-flow is less than aperture of the air-flow by hole two, the air-flow by the aperture in hole one
Distribution density of the air-flow by hole two is more than by the distribution density in hole one.
Preferably, the air inlet pipe is located at the length of chamber two and is more than the air inlet pipe and is located at the length of chamber one；It is described
The length that blast pipe is located at chamber two is more than the length that the blast pipe is located at chamber one.
Further, the cylinder back-end is covered provided with gusset and leg；
The silencer of the structure constantly forms backflow so as to reduce the kinetic energy of air-flow using air-flow in each chamber and aperture,
Reach the purpose of noise elimination.Utilize the continuous backflow of air-flow（Constantly mutually liquidate）, form certain exhaust back pressure, exhaust airstream trend
It is as follows：Air-flow is entered in flared tube by adapter, and into chamber three, a part of air-flow enters chamber four by the hole on dividing plate II
In, first temporarily it is stored into chamber four, after the current density change in chamber three, returns again in chamber three；Another part gas
Stream enters in air inlet pipe, realizes the water conservancy diversion of the air-flow to chamber three, and the air-flow in chamber three enters chamber one by air inlet pipe,
Chamber five is entered by blast pipe, further discharged by tail pipe；In this process, by means of the He of aperture two in air inlet pipe
Air-flow on aperture one and blast pipe realizes the water conservancy diversion to air-flow by the gentle circulation via one in hole two, increases touching for air-flow
Hit, improve the resistance that air-flow is subject to, improve the exhaust back pressure that air-flow finally discharges.
When barrel lenght is 500mm, barrel diameter 180mm, flared tube, the pipe diameter of air inlet pipe and blast pipe are
42mm acoustic wave filter structure can improve currency of the increase air-flow inside silencer, meanwhile, the aperture of aperture one is less than
The aperture of the aperture two, the distribution density of aperture one are more than the distribution density in the aperture of aperture two；The hole that air-flow passes through hole one
Footpath is less than aperture of the air-flow by hole two, distribution density the setting more than the distribution density that air-flow passes through hole two that air-flow passes through hole one
Put, contribute to tracheal flow to be flowed back in chamber two between air inlet pipe and blast pipe, the high pore size distribution in chamber one
Density, the wall resistance of air-flow can be increased, be favorably improved the exhaust back pressure of silencer.
The beneficial effects of the utility model are as follows：
The utility model provides a kind of acoustic wave filter structure, can be very good to abate the noise, can obtain suitable exhaust back pressure,
After tested, exhaust back pressure of the silencer of the structure under overflow situation is 1155 ~ 1563mmAq, can meet that fuel-engined vehicle is sent out
The demand of motivation.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is used to explain the utility model together, does not form to limitation of the present utility model.
Fig. 1 is the utility model acoustic wave filter structure simplified schematic diagram；
Fig. 2 is the specific schematic diagram of the utility model original muffler body；
Wherein, in figure：11st, take over；12nd, muffler body；13rd, tail pipe；14th, gusset；15th, leg；
21st, drive end bearing bracket；22nd, flared tube；23rd, dividing plate I；24th, air inlet pipe；25th, blast pipe；26th, dividing plate II；27th, dividing plate
III；28th, cylinder；29th, rear end cap；30th, dividing plate IV.
Embodiment
As depicted in figs. 1 and 2, a kind of acoustic wave filter structure, including muffler body 12, the body front end are connected with adapter
11, the tail pipe 13 for discharge gas is connected with afterbody side wall；The main body 12 includes cylinder 28, and the barrel front end is provided with front end
Lid 21, rear end are provided with rear end cap 29, and by drive end bearing bracket 21 and rear end cap 29, silencer working chamber, silencer work are formed in cylinder
Make intracavitary and dividing plate I23, dividing plate IV30, dividing plate perpendicular to body centre axle are disposed with along body centre direction of principal axis
II26, dividing plate III27, by the buffer action of dividing plate, silencer working chamber is divided into independent sealed chamber one, chamber successively
2nd, chamber three, chamber four, chamber five, the tail pipe 13 for discharge gas are located at the barrel of chamber five；Its feature exists
In：
The flared tube 22 parallel to body centre direction of principal axis is provided with the silencer chamber body, the flared tube 22 is across chamber
Room one, chamber two, chamber three, fixed by the hole on drive end bearing bracket 21, dividing plate I23 and dividing plate IV30, its one end connects
Pipe 11, the other end are deep into chamber three, realize air-flow introducing chamber three；
Be additionally provided with the air inlet pipe 24 parallel to body centre direction of principal axis in the silencer chamber body, the air inlet pipe 24 across
The chamber of chamber three, chamber two, chamber one, fixed by the hole on dividing plate IV30, dividing plate I23, one end connecting chamber three, the other end is stretched
To chamber one, realize and the gas of chamber three is transported in chamber one；
Be additionally provided with the blast pipe 25 parallel to body centre direction of principal axis in the silencer chamber body, the blast pipe 25 across
Chamber one, chamber two, chamber three, chamber four, chamber five, by dividing plate I23, dividing plate IV30, dividing plate II26, dividing plate III27
Hole fix, one end is located in chamber one, and the other end is located in chamber five, for the gas of chamber one to be transported into chamber five
In, further discharged by the tail pipe 13 being connected on chamber five；
The aperture for airflow between chamber three and chamber four is additionally provided with the dividing plate II26；
The cylinder back-end lid 29 is provided with gusset 14 and leg 15；
The air inlet pipe, which is located on the part of chamber one towards blast pipe face, is provided with some equally distributed lead to for air-flow
The aperture one crossed；
The air inlet pipe, which is located on the part of chamber two towards blast pipe face, is provided with some equally distributed lead to for air-flow
The aperture two crossed；
The blast pipe is located at a chamber part and passes through hole one provided with some equally distributed air-flows；
The part that the blast pipe is located at chamber two passes through hole two provided with some equally distributed air-flows；
The hole for airflow between chamber three and chamber four is additionally provided with the dividing plate II；
Further, the silencer cylinder length is 500mm, barrel diameter 180mm, the flared tube, air inlet pipe
Pipe diameter with blast pipe is 42mm；
The aperture of the aperture one is less than the aperture of the aperture two, and the distribution density of the aperture one is more than the aperture
The distribution density in two aperture；The air-flow is less than aperture of the air-flow by hole two, the air-flow by the aperture in hole one
Distribution density of the air-flow by hole two is more than by the distribution density in hole one.
Preferably, the air inlet pipe is located at the length of chamber two and is more than the air inlet pipe and is located at the length of chamber one；It is described
The length that blast pipe is located at chamber two is more than the length that the blast pipe is located at chamber one.
The silencer of the structure constantly forms backflow so as to reduce the kinetic energy of air-flow using air-flow in each chamber and aperture,
Reach the purpose of noise elimination.Utilize the continuous backflow of air-flow（Constantly mutually liquidate）, form certain exhaust back pressure, exhaust airstream trend
It is as follows：Air-flow is entered in flared tube by adapter, and into chamber three, a part of air-flow enters chamber four by the hole on dividing plate II
In, first temporarily it is stored into chamber four, after the current density change in chamber three, returns again in chamber three；Another part gas
Stream enters in air inlet pipe, realizes the water conservancy diversion of the air-flow to chamber three, and the air-flow in chamber three enters chamber one by air inlet pipe,
Chamber five is entered by blast pipe, further discharged by tail pipe；In this process, by means of the He of aperture two in air inlet pipe
Air-flow on aperture one and blast pipe realizes the water conservancy diversion to air-flow by the gentle circulation via one in hole two, increases touching for air-flow
Hit, improve the resistance that air-flow is subject to, improve the exhaust back pressure that air-flow finally discharges.
The silencer of the structure, exhaust airstream trend are as follows：Air-flow is entered in flared tube 22 by adapter 11, into chamber
Three, a part of air-flow enters in chamber four by the hole on dividing plate II26, is first temporarily stored into chamber four, treats in chamber three
After current density change, return again in chamber three；Another part air-flow enters in air inlet pipe 24, realizes to the air-flow of chamber three
Water conservancy diversion, an air-flow part is entered in chamber two by the aperture in air inlet pipe 24 in air inlet pipe 24, and another part enters chamber one
In.Air-flow trend in chamber one is divided into two parts again, and a part directly enters inside blast pipe 25 from the oral area of blast pipe 25, and one
Part is located at the equally distributed aperture set in a chamber part from blast pipe 25 and entered inside blast pipe 25, hence into chamber
In room five, tail pipe 13 is discharged by the hole on cylinder.Meanwhile one air-flow of the air-flow in blast pipe 25 reenters chamber two
In, return in chamber one, circulate, backflow is constantly formed in each chamber and aperture so as to reduce the dynamic of air-flow using air-flow
Energy, reach the purpose of noise elimination.Utilize the continuous backflow of air-flow（Constantly mutually liquidate）, form certain exhaust back pressure.
The utility model using diameter 180mm cylinder and diameter 42mm flared tubes, air inlet pipe and blast pipe coordinate into
On the one hand the hole set on tracheae, blast pipe hinders patency of the air-flow in silencer, on the other hand compel to cause air flow through pipe
When air-flow on wall is by hole entrance/spilling air inlet pipe or blast pipe, resistance of the tube wall to air-flow is added, both are mutual
Coordinate, improve airflow kinetic energy loss, ensure that the exhaust back pressure value of air-flow.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, although ginseng
The utility model is described in detail according to previous embodiment, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., this practicality should be included in
Within new protection domain.
Claims (5)
1. a kind of acoustic wave filter structure, including muffler body, the body front end is connected with adapter, is connected with and is used on afterbody barrel
The tail pipe of discharge gas；The main body includes the cylinder with drive end bearing bracket and rear end cap, is silencer working chamber in cylinder, its feature
It is：Dividing plate I, the dividing plate perpendicular to body centre axle are disposed with silencer working chamber along body centre direction of principal axis
IV, dividing plate II, dividing plate III, silencer working chamber by being divided into independent chamber one, chamber two, chamber with upper spacer successively
3rd, chamber four, chamber five, the tail pipe for discharge gas are located at the barrel of chamber five；
The flared tube parallel to body centre direction of principal axis is provided with the silencer chamber body, the flared tube is across chamber one, chamber
Room two, chamber three, one end connecting tubes, the other end are deep into chamber three；
The air inlet pipe parallel to body centre direction of principal axis is additionally provided with the silencer chamber body, the air inlet pipe is across chamber three
Chamber, chamber two, chamber one, one end connecting chamber three, the other end reach chamber one；
Be additionally provided with the blast pipe parallel to body centre direction of principal axis in the silencer chamber body, the blast pipe across chamber one,
Chamber two, chamber three, chamber four, chamber five, one end are located in chamber one, and the other end is located in chamber five；
The air inlet pipe, which is located on the part of chamber one towards blast pipe face, is provided with some equally distributed pass through for air-flow
Aperture one；The air inlet pipe, which is located on the part of chamber two towards blast pipe face, is provided with some equally distributed pass through for air-flow
Aperture two；The blast pipe is located at a chamber part and passes through hole one provided with some equally distributed air-flows；
The part that the blast pipe is located at chamber two passes through hole two provided with some equally distributed air-flows；
The hole for airflow between chamber three and chamber four is additionally provided with the dividing plate II.
2. acoustic wave filter structure according to claim 1, it is characterised in that：The silencer cylinder length is 500mm, cylinder
A diameter of 180mm, the pipe diameter of the flared tube, air inlet pipe and blast pipe is 42mm.
3. according to the acoustic wave filter structure described in claim any one of 1-2, it is characterised in that：The aperture of the aperture one is less than institute
The aperture of aperture two is stated, the distribution density of the aperture one is more than the distribution density in the aperture of the aperture two；The air-flow leads to
The aperture of via one is less than aperture of the air-flow by hole two, and the air-flow is more than the air-flow by the distribution density in hole one
Pass through the distribution density in hole two.
A kind of 4. acoustic wave filter structure according to claim 1 or claim 2, it is characterised in that：The air inlet pipe is located at the length of chamber two
Degree is more than the length that the air inlet pipe is located at chamber one；The length that the blast pipe is located at chamber two is located at more than the blast pipe
The length of chamber one.
A kind of 5. acoustic wave filter structure according to claim 1 or claim 2, it is characterised in that：The cylinder back-end is covered provided with gusset
And leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326971.4U CN206903726U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustic wave filter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720326971.4U CN206903726U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustic wave filter structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903726U true CN206903726U (en) | 2018-01-19 |
Family
ID=61295206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720326971.4U Withdrawn - After Issue CN206903726U (en) | 2017-03-30 | 2017-03-30 | A kind of acoustic wave filter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870085A (en) * | 2017-03-30 | 2017-06-20 | 安徽好运机械有限公司 | A kind of acoustic wave filter structure |
-
2017
- 2017-03-30 CN CN201720326971.4U patent/CN206903726U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870085A (en) * | 2017-03-30 | 2017-06-20 | 安徽好运机械有限公司 | A kind of acoustic wave filter structure |
| CN106870085B (en) * | 2017-03-30 | 2023-10-10 | 安徽好运机械有限公司 | Muffler structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20231010 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20231010 |