CN102278171A - Helmholtz resonator with variable tuning pipe - Google Patents
Helmholtz resonator with variable tuning pipe Download PDFInfo
- Publication number
- CN102278171A CN102278171A CN2010101968045A CN201010196804A CN102278171A CN 102278171 A CN102278171 A CN 102278171A CN 2010101968045 A CN2010101968045 A CN 2010101968045A CN 201010196804 A CN201010196804 A CN 201010196804A CN 102278171 A CN102278171 A CN 102278171A
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- pipe
- tuning pipe
- valve
- suction tude
- resonator
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- Exhaust Silencers (AREA)
Abstract
The invention relates to a helmholtz resonator with a variable tuning pipe, comprising a resonator housing, a fixed tuning pipe, a gas inlet pipe, a gas outlet pipe, a variable tuning pipe, a support, a rocking arm, a valve, and a torsion spring, wherein, the variable tuning pipe is sleeved in the fixed tuning pipe and capable of back and forth movement, the support is installed on a separating plate in the resonator housing, one end of the rocking arm is movably connected with the variable tuning pipe, the other end is movably connected with the valve, the valve is disposed in an outlet direction of the gas inlet pipe and can extend into the gas inlet pipe to seal the outlet of the gas inlet pipe, one end of the torsion spring is fixedly connected with the support, and the other end is fixedly connected with the central part of the rocking arm. Compared with the prior art, the helmholtz resonator in the invention is advantaged by low exhaust back pressure and small power loss of the engine, and is suitable for improving the whole damping effect of a vehicle exhaust system and the damping effect of a certain low frequency resonance frequency.
Description
Technical field
The present invention relates to a kind of resonator, the Helmholtz resonator of the tuning pipe of particularly a kind of belt variable.
Background technique
At present, in automobile exhaust system,, generally adopt Helmholtz resonator for reaching low frequency noise elimination purpose.The structure of this resonator generally comprises resonator housing and tuning pipe, and suction tude and steam outlet pipe are installed on the resonator housing, and tuning pipe is installed on the interior dividing plate of resonator housing.Though this structure has certain low frequency noise elimination effect, when gas flow temperature changed, institute's frequency modulation rate can change, and tends to influence its service behaviour, causes inefficacy.
Summary of the invention
Purpose of the present invention is in order to overcome the deficiency that above-mentioned prior art exists, and provide a kind of noise elimination well, technology is simple, cost is low and the Helmholtz resonator of the tuning pipe of belt variable that institute's frequency modulation rate can not change because of temperature variation.
To achieve these goals, the present invention has adopted following technological scheme: the Helmholtz resonator of the tuning pipe of a kind of belt variable, comprise resonator housing and fixing tuning pipe, suction tude and steam outlet pipe are installed on the resonator housing, fixing tuning pipe is installed on the interior dividing plate of resonator housing; Be characterized in, also comprise variable tuning pipe, support, rocking arm, valve and torsion spring; The variable tuning pipe box is contained in the described fixing tuning pipe and can moves forward and backward, support is installed on the interior dividing plate of resonator housing; an end and the variable tuning pipe of rocking arm are movably connected; the other end and valve are movably connected; valve is arranged on the Way out of described suction tude and can stretches in the suction tude suction tude outlet sealing; an end and the support of torsion spring are fixedly linked, and the middle part of the other end and rocking arm is fixedly linked.
Described valve is provided with a spherical arc shape head that conveniently stretches into suction tude.
Described suction tude middle part is provided with the aperture of giving vent to anger.
Compared with prior art, the present invention has the following advantages:
One, advanced technology: back pressure is low during the vehicle high speed, and vehicle power is strong, and used Helmholtz resonator can be owing to temperature variation lost efficacy: during by valve opening exhaust airstream is imported steam outlet pipe and can reduce back pressure rapidly.
Two, cost is low: only need be welded on the dividing plate in the resonator housing and get final product, cost is low.
Description of drawings
Fig. 1, Fig. 2 are the structural representation of the Helmholtz resonator of the tuning pipe of belt variable of the present invention, and wherein Fig. 1 is the valve open state, and Fig. 2 is the valve closing state.
Embodiment
Referring to Fig. 1, Fig. 2, the Helmholtz resonator of the tuning pipe of belt variable of the present invention comprises resonator housing 1, fixing tuning pipe 2, suction tude 3, steam outlet pipe 4, variable tuning pipe 5, support 6, rocking arm 7, valve 8 and torsion spring 9.Fixing tuning pipe 2 is installed on the interior dividing plate 11 of resonator housing.Suction tude 3 and steam outlet pipe 4 are installed in the rear and front end of resonator housing 1 respectively, are provided with the aperture 31 of giving vent to anger at the middle part of suction tude 3.Variable tuning pipe 5 is sleeved in the fixing tuning pipe 2 and can moves forward and backward, support 6 is installed on the interior dividing plate 11 of resonator housing; an end and the variable tuning pipe 5 of rocking arm 7 are movably connected; the other end and valve 8 are movably connected; valve 8 is arranged on the Way out of suction tude 4 and can stretches in the suction tude suction tude outlet sealing; an end and the support 6 of torsion spring 9 are fixedly linked, and the middle part of the other end and rocking arm 7 is fixedly linked.
Valve 8 among the present invention is provided with a spherical arc shape head that conveniently stretches into suction tude.
Working principle of the present invention is, when the automobile low cruise, valve is not open, air-flow is discharged by 3 the aperture 31 of giving vent to anger on the suction tude, increase exhaust back pressure, improve the whole noise elimination effect of silencing apparatus, this moment, the variable tuning pipe was not worked, carry out low frequency by original fixing tuning pipe and eliminate the noise, as shown in Figure 2.When rotating speed rises to a certain degree, valve 8 unlatchings, air-flow is imported in the steam outlet pipe 4 by valve, reduces back pressure, and power loss reduces, and oil consumption reduces, and variable tuning pipe 5 is started working at this moment, and the frequency of being transferred when guaranteeing the resonator design is constant, as shown in Figure 1.
Claims (3)
1. the Helmholtz resonator of the tuning pipe of belt variable comprises resonator housing and fixing tuning pipe, and suction tude and steam outlet pipe are installed on the resonator housing, and fixing tuning pipe is installed on the interior dividing plate of resonator housing; It is characterized in that: also comprise variable tuning pipe, support, rocking arm, valve and torsion spring; The variable tuning pipe box is contained in the described fixing tuning pipe and can moves forward and backward, support is installed on the interior dividing plate of resonator housing; an end and the variable tuning pipe of rocking arm are movably connected; the other end and valve are movably connected; valve is arranged on the Way out of described suction tude and can stretches in the suction tude suction tude outlet sealing; an end and the support of torsion spring are fixedly linked, and the middle part of the other end and rocking arm is fixedly linked.
2. Helmholtz resonator according to claim 1 is characterized in that: described valve is provided with a spherical arc shape head that conveniently stretches into suction tude.
3. Helmholtz resonator according to claim 1 is characterized in that: described suction tude middle part is provided with the aperture of giving vent to anger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196804 CN102278171B (en) | 2010-06-09 | 2010-06-09 | Helmholtz resonator with variable tuning pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010196804 CN102278171B (en) | 2010-06-09 | 2010-06-09 | Helmholtz resonator with variable tuning pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102278171A true CN102278171A (en) | 2011-12-14 |
| CN102278171B CN102278171B (en) | 2012-12-19 |
Family
ID=45103850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010196804 Expired - Fee Related CN102278171B (en) | 2010-06-09 | 2010-06-09 | Helmholtz resonator with variable tuning pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102278171B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536386A (en) * | 2011-12-29 | 2012-07-04 | 湛江市华夏消声器有限公司 | Structurally modified automobile exhaust muffler assembly |
| CN107545885A (en) * | 2016-07-03 | 2018-01-05 | 中北大学 | A kind of Frequency Adjustable sound lining |
| CN111878192A (en) * | 2019-05-02 | 2020-11-03 | 埃贝斯佩歇排气技术有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858412A (en) * | 2006-06-02 | 2006-11-08 | 河南天瑞环保新材料有限公司 | Internal combustion engine exhaust silencer with variable exhaust pipe cross section |
| JP2007205275A (en) * | 2006-02-02 | 2007-08-16 | Calsonic Kansei Corp | Muffler |
| JP2009062972A (en) * | 2007-06-06 | 2009-03-26 | Calsonic Kansei Corp | Silencer |
| CN101435356A (en) * | 2007-11-13 | 2009-05-20 | 上海华克排气系统有限公司 | Novel Helmholtz resonator |
| CN201738988U (en) * | 2010-06-09 | 2011-02-09 | 上海天纳克排气系统有限公司 | Helmholtz resonator with variable tuning pipe |
-
2010
- 2010-06-09 CN CN 201010196804 patent/CN102278171B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205275A (en) * | 2006-02-02 | 2007-08-16 | Calsonic Kansei Corp | Muffler |
| CN1858412A (en) * | 2006-06-02 | 2006-11-08 | 河南天瑞环保新材料有限公司 | Internal combustion engine exhaust silencer with variable exhaust pipe cross section |
| JP2009062972A (en) * | 2007-06-06 | 2009-03-26 | Calsonic Kansei Corp | Silencer |
| CN101435356A (en) * | 2007-11-13 | 2009-05-20 | 上海华克排气系统有限公司 | Novel Helmholtz resonator |
| CN201738988U (en) * | 2010-06-09 | 2011-02-09 | 上海天纳克排气系统有限公司 | Helmholtz resonator with variable tuning pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536386A (en) * | 2011-12-29 | 2012-07-04 | 湛江市华夏消声器有限公司 | Structurally modified automobile exhaust muffler assembly |
| CN107545885A (en) * | 2016-07-03 | 2018-01-05 | 中北大学 | A kind of Frequency Adjustable sound lining |
| CN107545885B (en) * | 2016-07-03 | 2020-09-01 | 中北大学 | Frequency-adjustable acoustic liner |
| CN111878192A (en) * | 2019-05-02 | 2020-11-03 | 埃贝斯佩歇排气技术有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
| CN111878192B (en) * | 2019-05-02 | 2022-05-31 | 普瑞姆有限公司 | Exhaust muffler for an exhaust system of an internal combustion engine |
| US11643953B2 (en) | 2019-05-02 | 2023-05-09 | Purem GmbH | Exhaust muffler for an exhaust system of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102278171B (en) | 2012-12-19 |
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Granted publication date: 20121219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |