CN204663696U - A kind of plastic valve chamber cover that can reduce engine noise - Google Patents
A kind of plastic valve chamber cover that can reduce engine noise Download PDFInfo
- Publication number
- CN204663696U CN204663696U CN201520216422.2U CN201520216422U CN204663696U CN 204663696 U CN204663696 U CN 204663696U CN 201520216422 U CN201520216422 U CN 201520216422U CN 204663696 U CN204663696 U CN 204663696U
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- Prior art keywords
- valve chamber
- plastic valve
- chamber cover
- cover body
- noise
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Abstract
The utility model discloses a kind of plastic valve chamber cover that can reduce engine noise, it comprises plastic valve chamber cover body, described plastic valve chamber cover body is provided with vinyl cover, the lower limb of described vinyl cover and the top edge of described plastic valve chamber cover body are fixedly linked, and between the upper surface of vinyl cover internal surface and plastic valve chamber cover body, form a closed inner chamber, and be provided with flat material in described closed inner chamber.Structure is simple, cost is low, effectively can improve valve chamber cover self and motor conducts the noise problem of coming, and optimizes the NVH performance of motor.
Description
Technical field
The utility model relates to a kind of engine component, is specifically related to a kind of plastic valve chamber cover that can reduce engine noise.
Background technique
Along with the light-weighted requirement of motor, the valve chamber cover of original aluminum has progressively changed into uses plastics manufacture, but can bring the increase of engine head noise like this.Reduction noise method at present on plastic valve chamber cover and structure are mainly: under plastic valve chamber cover panel, arrange netted reinforcing rib, thus the noise that the vibration reducing wall produces.The place of the mode deficiency of this reduction noise be structure that stiffening rib is set to cover cap wall certain because noise that vibration produces has reduction effect, but not very good; And for the noise produced by motor, this noise can penetrate cover cap, the reduction of structure to this noise of stiffening rib does not almost have.
Summary of the invention
Technical problem to be solved in the utility model is to provide that a kind of structure is simple, cost is low, can reduce the noise that motor produces, effectively improve valve chamber cover self simultaneously and conduct the noise problem of coming with motor, optimize a kind of plastic valve chamber cover that can reduce engine noise of the NVH performance of motor.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of plastic valve chamber cover that can reduce engine noise, it comprises plastic valve chamber cover body, described plastic valve chamber cover body is provided with vinyl cover, the lower limb of described vinyl cover and the top edge of described plastic valve chamber cover body are fixedly linked, and between the upper surface of vinyl cover internal surface and plastic valve chamber cover body, form a closed inner chamber, and be provided with flat material in described closed inner chamber.
Further, described flat material is any one in the metallic material of loose porous sound absorbing material or densification.
Further, the lower limb of described vinyl cover adopts buckle with the top edge of plastic valve chamber cover body, welds or any one means of fixation in bolt.
In the utility model, when the noise produced is through plastic valve chamber cover body, is absorbed by flat material in the inner chamber of most of noise between plastic valve chamber cover body and vinyl cover or intercept, thus reducing the noise that motor produces.
The beneficial effects of the utility model are: when the noise produced is through plastic valve chamber cover, be lowered noise material in the inner chamber of major part noise between plastic valve chamber cover and vinyl cover absorb or intercept, reduce the noise that motor produces, effectively improve the NVH performance of motor.In the utility model, the flat material adopted easily obtains, and vinyl cover and plastic valve chamber cover body adopt the means of fixation of buckle or bolt, in installation process, also substantially reduce the installation time, improve the working efficiency of installation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is plastic valve chamber cover and plastic cover structure schematic diagram;
Fig. 3 is part A structure enlarged diagram in Fig. 1;
Fig. 4 is the utility model exploded perspective view.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As Figure 1-4, a kind of plastic valve chamber cover that can reduce engine noise, it comprises plastic valve chamber cover body 1, plastic valve chamber cover body 1 is provided with vinyl cover 2, the lower limb of vinyl cover 2 and the top edge of plastic valve chamber cover body 1 are fixedly linked, and between vinyl cover 2 internal surface 201 and the upper surface 101 of plastic valve chamber cover body 1, form a closed inner chamber 3, and be provided with flat material 4 in the inner chamber 3 closed.
Flat material 4 is any one in the metallic material of loose porous sound absorbing material or densification.
The top edge of the lower limb of vinyl cover 2 and this 1 body of plastic valve chamber cover adopts buckle, weld or any one means of fixation in bolt.
When the noise produced is through plastic valve chamber cover body 1, is absorbed by flat material 4 in the inner chamber 3 of most of noise between plastic valve chamber cover body 1 and vinyl cover 2 or intercept, thus reducing the noise that motor produces.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. one kind can be reduced the plastic valve chamber cover of engine noise, it comprises plastic valve chamber cover body, it is characterized in that: on described plastic valve chamber cover body, be provided with vinyl cover, the lower limb of described vinyl cover and the top edge of described plastic valve chamber cover body are fixedly linked, and between the upper surface of vinyl cover internal surface and plastic valve chamber cover body, form a closed inner chamber, and be provided with flat material in described closed inner chamber.
2. a kind of plastic valve chamber cover that can reduce engine noise according to claim 1, is characterized in that: described flat material be in the metallic material of loose porous sound absorbing material or densification any one or exist simultaneously.
3. a kind of plastic valve chamber cover that can reduce engine noise according to claim 1, is characterized in that: the lower limb of described vinyl cover adopts clamping with the top edge of plastic valve chamber cover body, welds, any one means of fixation in riveted joint or Bolt Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216422.2U CN204663696U (en) | 2015-04-13 | 2015-04-13 | A kind of plastic valve chamber cover that can reduce engine noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216422.2U CN204663696U (en) | 2015-04-13 | 2015-04-13 | A kind of plastic valve chamber cover that can reduce engine noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663696U true CN204663696U (en) | 2015-09-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520216422.2U Active CN204663696U (en) | 2015-04-13 | 2015-04-13 | A kind of plastic valve chamber cover that can reduce engine noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204663696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863746A (en) * | 2015-04-13 | 2015-08-26 | 合肥恒信汽车发动机部件制造有限公司 | Plastic valve chamber cover capable of reducing engine noise and noise reducing method of plastic valve chamber cover |
-
2015
- 2015-04-13 CN CN201520216422.2U patent/CN204663696U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863746A (en) * | 2015-04-13 | 2015-08-26 | 合肥恒信汽车发动机部件制造有限公司 | Plastic valve chamber cover capable of reducing engine noise and noise reducing method of plastic valve chamber cover |
| CN104863746B (en) * | 2015-04-13 | 2018-03-13 | 合肥恒信汽车发动机部件制造有限公司 | A kind of plastic valve chamber cover that can reduce engine noise and its method for reducing noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Plastic valve chamber cover capable of reducing engine noise and noise reducing method of plastic valve chamber cover Effective date of registration: 20161220 Granted publication date: 20150923 Pledgee: Hefei SME financing Company limited by guarantee Pledgor: Hefei Hengxin Automotive Engine Component Manufacturing Co., Ltd. Registration number: 2016340000118 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171219 Granted publication date: 20150923 Pledgee: Hefei SME financing Company limited by guarantee Pledgor: Hefei Hengxin Automotive Engine Component Manufacturing Co., Ltd. Registration number: 2016340000118 |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 230000 southwest Hengxin automobile office at the intersection of yingjiangsi road and Yulan Avenue, Taohua Industrial Park, Feixi County, Hefei City, Anhui Province Patentee after: Hefei Hengxin Power Technology Co.,Ltd. Address before: 230051 Anhui Province, Hefei City Baohe Industrial Zone weft three road No. nine Patentee before: HEFEI HENGXIN AUTOMOTIVE ENGINE COMPONENT MANUFACTURING Co.,Ltd. |