CN101260834A - Engine noise reducer - Google Patents
Engine noise reducer Download PDFInfo
- Publication number
- CN101260834A CN101260834A CNA200810023624XA CN200810023624A CN101260834A CN 101260834 A CN101260834 A CN 101260834A CN A200810023624X A CNA200810023624X A CN A200810023624XA CN 200810023624 A CN200810023624 A CN 200810023624A CN 101260834 A CN101260834 A CN 101260834A
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- China
- Prior art keywords
- cylinder head
- engine
- motor
- sound insulation
- noise
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- 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.)
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- Motor Or Generator Frames (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a noise reducing device for an engine, particularly speaking, an outer housing is mainly used to be covered above an engine body or a cylinder head so as to improve the sound insulation performance and the cooling performance of the engine. The invention is characterized in that a cushion blocking and silence cotton are arranged between a sound insulation board and a sound insulation cap; the sound insulation cap has a flat surface and downward obliquely bent periphery; the sound insulation cap is provided with a hook mounting hole; and the sound insulation board is provided with a hook mounting hole. The noise reducing device can transmit charge cooling flow from a fan to a muffler, thereby cooling the cylinder head and an exhaust pipe so as to improve the cooling performance of the engine; and the noise reducing device can greatly reduce noises generated by the cylinder head, thereby reducing noises of the engine so as to better improve the sound insulation performance of the engine.
Description
Technical field
The present invention relates to a kind of denoising device of motor, specifically mainly adopt a top outer cover that covers engine body or cylinder head, improve the sound insulation value of motor and the cooling performance of motor, belong to the power plant field.
Background technique
In prior art, the known motor of the public is to be equipped with parts such as silencing apparatus, fuel tank, air-strainer on cylinder head.During such engine operation, be with cooling blast by be arranged on motor wherein the fan of a side be delivered to the opposite side of motor, to carry out cooling to motor.This kind structure engine only possesses the structure that the guiding cooling blast is arranged, and does not consider soundproof effect, and along with the raising that the reduction engine noise is required, the noise that reduces motor is imperative.In addition, even vibrations when outer cover being installed improving the motor operation to motor and reduce noise but because outer cover covers whole motor, have caused the cover structure complexity in the past, install loaded down with trivial detailsly, operability is relatively poor.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, thereby provide a kind of denoising device of motor, the main top outer cover that covers engine body or cylinder head that utilizes, supercharging cooling blast from fan can be delivered to silencing apparatus, thereby cooling air cylinder head and outlet pipe promote the cooling performance of motor with this; And play deadening, and can reduce the noise that produces by cylinder head greatly, thereby reduce the noise of motor, better improve the sound insulation value of motor.
Main solution of the present invention is achieved in that
The present invention includes noise enclosure, feature is that beam and noise reduction cotton are set in the middle of insulation board and noise enclosure.
Described noise enclosure surfacing, downward-sloping all around bending.
Described noise enclosure is provided with the suspension hook mounting hole.Described insulation board is provided with the suspension hook mounting hole.
Described insulation board below is provided with the decompression operation device of motor, and extends to the outside of outer cover.
Compared with the prior art the present invention has the following advantages:
The present invention can be installed in outer cover engine block or cylinder head top simply, and motor is when needing repairing, as long as individually noise enclosure and insulation board are unloaded, can be easily the part of the required maintenance of motor be unloaded, and promotes maintenance.2, constitute above-mentioned outer cover by insulation board, noise reduction cotton and noise enclosure, with insulation board coating gas cylinder head, cover insulation board with noise enclosure, the noise reduction cotton is placed in the space that they formed, because the centre is provided with the noise reduction cotton, can reduce the noise that produces by cylinder head greatly, thereby reduce the noise of motor, better improve the sound insulation value of motor.3, because outer cover has been covered the cylinder head top, and make its prolongation cover the top of outlet pipe, thereby avoided cylinder head and outlet pipe to expose on the one hand and caused unnecessary damage outside, and prevented that the operator from touching High Temperature Gas cylinder head and outlet pipe because of carelessness, thereby promoted the Safety performance of motor.4, because above-mentioned outer cover is covered on the cylinder head, so just do not need the supply and exhaust pipe that part is installed in addition, do not need yet other part processing, saved cost, owing to do not need other supply and exhaust pipe that part is installed, so cooling blast can better cool off outlet pipe.5, insulation board can be used as flow guide device, can guide the supercharging cooling blast from fan, and cool off the space of forming by cylinder head and this device and be delivered to the silencing apparatus side again, thus more effective cooling air cylinder head and outlet pipe.6, because above-mentioned outer cover is arranged in the cylinder head top, make engine exhaust pipe one side keep suitable space, cooling blast is fully discharged, and can promote cooling effectiveness.7, owing to angled, and keep facial smooth on the noise enclosure, like this at above-mentioned noise enclosure periphery, even rainy water droplet is facial to going up of top outer cover, water also can pour off fast from noise enclosure, and it is facial to prevent that sealing accumulates in going up of noise enclosure, constitutes the drain structure of top outer cover simply.8, because the suspension hook patchhole is set on above-mentioned noise enclosure and insulation board, thus, then need not be with outer cover from engine removal, then can be simply the suspension hook of motor be installed in cylinder head, and outer cover need not be unloaded from motor, so just can be easily with this motor migration transportation.9, owing to constitute the operative section of the decompressor of above-mentioned motor, carry out decompression, owing to be arranged on the insulation board below and extend to the outside of insulation board with decompression handle with the decompression shaft parts.Even, still can operate decompressor by decompression handle very easily so outer cover is installed on the above-mentioned motor.Because decompression handle does not have the noise enclosure height, so the outward appearance of motor can not be damaged.10, the space between above-mentioned cylinder head and the outer cover forms guide portion, thus, can guide the supercharging cooling blast that comes from fan by guide portion, and can make its shunting, like this, just can the cooling air cylinder head, also can cool off outer cover, oil sprayer and outlet pipe, and can form the cooling blast guide portion simply with original component.Like this, then need not save cost at the additional special part of engine main body.
Description of drawings
Fig. 1 is motor rear perspective view under the user mode of the present invention.
Fig. 2 is motor front perspective view under the user mode of the present invention.
Fig. 3 is cover mounting structure schematic representation under the user mode of the present invention.
Fig. 4 is motor partial top view under the user mode of the present invention.
Fig. 5 is a user mode motor side view of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 5: comprise cylinder head 1, body 2, crankcase cover 3, cylinder noise enclosure 4, fuel tank 5, silencing apparatus 6 (6a), air-strainer 7, oil sprayer 8, suction tude 9 (9a, 9b), handle tray 10, wind scooper 11, flywheel 12 (12a), decompression shaft parts 13, noise enclosure 14 (14a), beam 15, noise reduction cotton 16, insulation board 17 (17a).
As Fig. 1～shown in Figure 3, at first, be the motor that is used as being suitable for cover structure of the present invention with single-cylinder air-cooled diesel engine.Motor mainly includes the cylinder head 1 on top, and body 2 and crankcase cover 3 are provided with cylinder noise enclosure 4 above cylinder head 1, includes fuel tank 5, silencing apparatus 6 and air-strainer 7 around the cylinder head that cylinder noise enclosure 4 and cylinder head 1 are formed.On this cylinder head 1, be furnished with oil sprayer 8.Air-strainer is connected with suction tude 9 with cylinder head.
As Fig. 2, shown in Figure 4, be installed in body 2 below this engine air filter 7 and be provided with handle tray 10, wind scooper 11 is provided with flywheel 12 in wind scooper 11 inside, and the blade 12a above the flywheel 12 has formed fan.On above-mentioned cylinder head 1, decompression shaft parts 13 are installed, have constituted the operation equipment of the depressurized system of motor.
As shown in Figure 5, outer cover is fixed on engine body air-strainer 7 tops.Outer cover is made up of cotton 16 of insulation board 17, noise enclosure 14, beam 15 and noise reduction.In the middle of insulation board 17 and noise enclosure 14, beam 15 and noise reduction cotton 16 are set.Be placed with beam 15 in the centre, lower the vibrations noise, cover insulation board 17 with noise enclosure 14.The noise that middle placement noise reduction cotton 16 absorbs from cylinder head, insulation board 17 and noise enclosure are placed with beam 15 attenuating vibrations noises simultaneously.Like this, by insulation board 17, the noise that the outer cover that noise reduction cotton 16 and noise enclosure 14 are formed can well produce cylinder head absorbs and prevents the diffusion of noise, simultaneously can prevent that the user from running into cylinder head because of carelessness, improve the Security of using motor, also promoted the aesthetic property of motor.
Simultaneously, on above-mentioned cylinder head 1, decompression shaft parts 13 are installed, have constituted the operation equipment of the depressurized system of motor.The operation equipment of the depressurized system of motor is arranged on insulation board 17 belows, and extends to the outside of outer cover.Even be equipped with under the situation of outer cover, also can carry out decompression operation to motor very easily, make ato unit more simple.Simultaneously, be provided with suspension hook mounting hole 17a and 14a instant packed and transportation on insulation board 17 and noise enclosure 14, so just suspension hook can be installed easily, just packing and transport are simpler.
As shown in Figure 5, suction tude 9 is provided with gas port 9a and 9b, like this can so that cooling blast to fan 12a opposition side.Insulation board 17 has formed the guide plate to cooling blast, cooling blast forms shunting like this, part cooling air cylinder head, another part cooled exhaust pipe 6a and oil sprayer 8, drive the cooling blast in the space of forming by insulation board 17 and air-strainer 7 and cylinder head simultaneously, outer cover part and air-strainer 7 and silencing apparatus 6 are also had favorable cooling effect.
As above-mentioned said, outer cover of the present invention can promote the noise that motor and sound insulation and reduction cylinder head produce, and can make cooling blast cooling air cylinder head, silencing apparatus, and air-strainer and oil sprayer, this can play very big effect in actual applications.
Claims (4)
1, a kind of denoising device of motor comprises noise enclosure (14), it is characterized in that being provided with in the middle of insulation board (17) and noise enclosure (14) beam (15) and noise reduction cotton (16).
2, the denoising device of a kind of motor according to claim 1 is characterized in that described noise enclosure (14) surfacing, downward-sloping bending all around.
3, the denoising device of a kind of motor according to claim 1 is characterized in that described noise enclosure (14) is provided with suspension hook mounting hole (14a).
4, the denoising device of a kind of motor according to claim 1 is characterized in that described insulation board (17) is provided with suspension hook mounting hole (17a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810023624XA CN101260834A (en) | 2008-04-10 | 2008-04-10 | Engine noise reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810023624XA CN101260834A (en) | 2008-04-10 | 2008-04-10 | Engine noise reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101260834A true CN101260834A (en) | 2008-09-10 |
Family
ID=39961486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810023624XA Pending CN101260834A (en) | 2008-04-10 | 2008-04-10 | Engine noise reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101260834A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091570A1 (en) * | 2010-01-28 | 2011-08-04 | 无锡开普动力有限公司 | Engine structure having muffler cover |
| CN102269078A (en) * | 2011-06-30 | 2011-12-07 | 天津雷沃动力股份有限公司 | Laminated noise reduction structure of gear chamber |
| CN104500227A (en) * | 2014-12-10 | 2015-04-08 | 重庆长航东风船舶工业公司 | Passenger liner and engine denoising device thereof |
| CN109681342A (en) * | 2019-02-15 | 2019-04-26 | 重庆华世丹动力科技股份有限公司 | The full bag engine of input type |
| WO2023130559A1 (en) * | 2022-01-07 | 2023-07-13 | 浙江荣发动力股份有限公司 | G125 high-wear-resistance noise reduction type engine left crankcase cover |
-
2008
- 2008-04-10 CN CNA200810023624XA patent/CN101260834A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011091570A1 (en) * | 2010-01-28 | 2011-08-04 | 无锡开普动力有限公司 | Engine structure having muffler cover |
| CN102269078A (en) * | 2011-06-30 | 2011-12-07 | 天津雷沃动力股份有限公司 | Laminated noise reduction structure of gear chamber |
| CN104500227A (en) * | 2014-12-10 | 2015-04-08 | 重庆长航东风船舶工业公司 | Passenger liner and engine denoising device thereof |
| CN109681342A (en) * | 2019-02-15 | 2019-04-26 | 重庆华世丹动力科技股份有限公司 | The full bag engine of input type |
| WO2023130559A1 (en) * | 2022-01-07 | 2023-07-13 | 浙江荣发动力股份有限公司 | G125 high-wear-resistance noise reduction type engine left crankcase cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080910 |