CN203463213U - Noise reduction device for high-pressure oil pump in automobile engine - Google Patents
Noise reduction device for high-pressure oil pump in automobile engine Download PDFInfo
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- CN203463213U CN203463213U CN201320460482.XU CN201320460482U CN203463213U CN 203463213 U CN203463213 U CN 203463213U CN 201320460482 U CN201320460482 U CN 201320460482U CN 203463213 U CN203463213 U CN 203463213U
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- oil pump
- pressure oil
- tubular cavity
- high pressure
- motor car
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Abstract
The utility model discloses a noise reduction device for a high-pressure oil pump in an automobile engine for reducing and even eliminating high and low frequency noise of high-pressure oil pumps in automobile engines and relates to the technical field of automobile engines. The device comprises a cylindrical cavity which is sealed at the top end and open at the bottom end, a high-pressure oil pump body can be mounted in the cylindrical cavity through the bottom end opening, a through hole is formed in the cylindrical cavity, and a pipe of the high-pressure oil pump can be threaded in through the through hole. When the high-pressure oil pump body is assembled in the cylindrical cavity, the inner surface of the cylindrical cavity is in interference fit with the high-pressure oil pump body and covers all the outer surface of the high-pressure oil pump body. The cylindrical cavity is made of sound-insulation materials. The device is used for reducing and even eliminating noise of the high-pressure oil pump in the automobile engine.
Description
Technical field
The utility model relates to technical field of automobile engine, relates in particular to the denoising device of motor car engine mesohigh oil pump.
Background technique
Along with industrial expansion, noise has become one of world today's three major source of pollution.Noise not only endangers people's auditory system, makes that people is tired, tinnitus is even deaf, but also can accelerate the aging of building, mechanical structure, affects precision and the working life of equipment.
The overall comfort of the noise effect automobile in automobile.The noise of automobile is to derive from motor greatly.The motor of automobile comprises a lot of parts, for example high pressure oil pump.High pressure oil pump comprises oil pump body, the oil inlet pipe being communicated with oil pump body and oil outlet tube etc., and high pressure oil pump is also connected with a plurality of electronic valve sensors.The motor of automobile is when work, and high pressure oil pump can vibrate, thereby produces low-and high-frequency noise, and the noise that high pressure oil pump vibration produces is the key factor that forms engine noise.
How to reduce the noise of even eliminating motor car engine mesohigh oil pump, become problem demanding prompt solution.
Model utility content
Embodiment of the present utility model provides a kind of denoising device of motor car engine mesohigh oil pump, in order to reduce the noise of even eliminating motor car engine mesohigh oil pump.
For achieving the above object, embodiment of the present utility model adopts following technological scheme:
A denoising device for motor car engine mesohigh oil pump, comprises tubular cavity, and described tubular cavity top closure, bottom end opening can pack the body of high pressure oil pump into by described bottom end opening; Described tubular cavity is provided with through hole, can penetrate the pipeline of high pressure oil pump by described through hole; When described high pressure oil pump is assemblied in described tubular cavity, the body interference fit of the internal surface of described tubular cavity and this high pressure oil pump, and all wrap up this external surface of high pressure oil pump; The material of described tubular cavity is soundproof material.
Preferably, the inwall of described tubular cavity bottom is provided with positioning boss, and when described high pressure oil pump is assemblied in described tubular cavity, the bottom surface of described high pressure oil pump body is against described positioning boss.
Wherein, the internal surface on described tubular cavity top has been provided with gripping surface, and when described high pressure oil pump is assemblied in tubular cavity, described gripping surface is against the end face of described high pressure oil pump body.
Preferably, described tubular cavity inner wall is provided with a plurality of the first sound insulation grooves that extend along circumferentially.
Preferably, described tubular cavity inner wall is provided with a plurality of sound insulation faceted pebbles that extend longitudinally.
Wherein, the material of described tubular cavity is sound-isolating sponge.
Preferably, one-body molded on described through hole have a sound insulation tube, and described sound insulation tube can wrap up the pipeline of described high pressure oil pump.
Wherein, in described sound insulation tube, be provided with the second sound insulation groove.
Preferably, the outer surface of described tubular cavity is curved surface.
In the denoising device of the motor car engine mesohigh oil pump that the utility model embodiment provides, when high pressure oil pump being assembled in tubular cavity, can first the body of high pressure oil pump be packed into from the bottom end opening of tubular cavity, again the pipeline of high pressure oil pump is inserted by the through hole on tubular cavity, thereby pipeline is connected with high pressure oil pump body.Because the internal surface of tubular cavity all wraps up this external surface of high pressure oil pump, the body of high pressure oil pump is wrapped up by tubular cavity completely, the bang path of the noise that high pressure oil pump produces is like this intercepted by tubular cavity completely, thereby makes tubular cavity excellent to the noise reduction of high pressure oil pump.And the body interference fit of the internal surface of tubular cavity and high pressure oil pump, the body of high pressure oil pump can not rocked with respect to tubular cavity, can realize the self-align of high pressure oil pump, the body that is high pressure oil pump is fixed with respect to the position of tubular cavity, thereby makes the accurate positioning of tubular cavity reliable.In addition, the material of tubular cavity is soundproof material, and noise is had and weakens the effect of even eliminating, and makes like this tubular cavity high pressure oil pump body be played to the effect of good sound insulation, de-noising.
Accompanying drawing explanation
The structural representation of the denoising device of a kind of motor car engine mesohigh oil pump that Fig. 1 provides for the utility model embodiment;
The generalized section of the structure of the denoising device of the another kind of motor car engine mesohigh oil pump that Fig. 2 a provides for the utility model embodiment;
Fig. 2 b is the structural representation of the denoising device of the motor car engine mesohigh oil pump shown in Fig. 2 a.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
In description of the present utility model, it will be appreciated that, term " " center ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
Term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of denoising device of motor car engine mesohigh oil pump, comprises tubular cavity 11, and tubular cavity 11 top closure, bottom end opening can pack the body of high pressure oil pump into by bottom end opening; Tubular cavity 11 is provided with through hole 12, can penetrate the pipeline (not shown) of high pressure oil pump by through hole 12; When high pressure oil pump is assemblied in tubular cavity 11, the internal surface of tubular cavity 11 and the body of this high pressure oil pump 11 interference fit, and all wrap up this external surface of high pressure oil pump; The material of tubular cavity is soundproof material.
In the denoising device of the motor car engine mesohigh oil pump that the utility model provides, when high pressure oil pump being assembled in tubular cavity 11, can first the body of high pressure oil pump be packed into from the bottom end opening of tubular cavity 11, again the pipeline of high pressure oil pump is inserted by the through hole 12 on tubular cavity 11, thereby pipeline is connected with high pressure oil pump body.Because the internal surface of tubular cavity 11 all wraps up this external surface of high pressure oil pump, make the body of high pressure oil pump completely by tubular cavity 11 parcels, the bang path of the noise that high pressure oil pump produces is like this intercepted by tubular cavity 11 completely, thereby makes the noise reduction of 11 pairs of high pressure oil pumps of tubular cavity excellent.And the body interference fit of the internal surface of tubular cavity 11 and high pressure oil pump, the body of high pressure oil pump can not rocked with respect to tubular cavity 11, can realize the self-align of high pressure oil pump, the body that is high pressure oil pump is fixed with respect to the position of tubular cavity 11, thereby makes the accurate positioning of tubular cavity 11 reliable.In addition, the material of tubular cavity 11 is soundproof material, and noise is had and weakens the effect of even eliminating, and makes like this tubular cavity high pressure oil pump body be played to the effect of good sound insulation, de-noising.
Referring to Fig. 1, in the denoising device of above-mentioned motor car engine mesohigh oil pump, on the inwall of tubular cavity 11 bottoms, can be provided with positioning boss 13, when high pressure oil pump is assemblied in tubular cavity 11, the bottom surface of high pressure oil pump body is against this positioning boss 13, this positioning boss 13 can play good position-limiting action to high pressure oil pump, and while preventing engine operation vibration, high pressure oil pump body departs from from tubular cavity 11.
Referring to Fig. 2 a and Fig. 2 b, the internal surface on above-mentioned tubular cavity 11 tops can be provided with gripping surface 21, and when high pressure oil pump is assemblied in tubular cavity 11, gripping surface 21 is against the end face of high pressure oil pump body.Gripping surface 21 and positioning boss 13 the two synergy, play the effect of clamping to high pressure oil pump body like this, makes the location of high pressure oil pump body more accurately, reliably.Avoid high pressure oil pump body to rock in tubular cavity 11, guarantee that to a greater degree high pressure oil pump body can not come off from tubular cavity 11.
Referring to Fig. 2 a and Fig. 2 b, above-mentioned tubular cavity 11 inwalls can be provided with a plurality of the first sound insulation grooves 22 that extend along circumferentially.The effect that the first sound insulation groove 22 can play absorption, intercept noise, to reduce frequency noise, thereby reaches the effect that reduces high pressure oil pump body noise.
Referring to Fig. 2 a and Fig. 2 b, above-mentioned tubular cavity 11 inwalls can also be provided with a plurality of sound insulation faceted pebbles 23 that extend vertically.The effect that sound insulation faceted pebble 23 equally also can play absorption, intercept noise, so that tubular cavity 11 is better by noise absorption, thereby reaches the effect that weakens high pressure oil pump body noise.Certainly, can on the inwall of tubular cavity 11, both be provided with the first sound insulation groove 22 and also be provided with sound insulation faceted pebble 23, and make like this tubular cavity 11 possess the more excellent noise performance that goes out, sound insulation, the noise reduction of a pair of high pressure oil pump are better.
Wherein, in the denoising device of above-mentioned motor car engine mesohigh oil pump, the material of tubular cavity 11 can be sound-isolating sponge.The soundproof effect of sound-isolating sponge is excellent, lighter weight, structural stability, reliable.Certainly, tubular cavity 11 can also adopt polyurethane material to make, and the soundproof effect of polyurethane material is also relatively good, has the advantages such as quality is light, structural strength is good.
The outer surface of above-mentioned tubular cavity 11 can be provided with sound insulation plane 24, and for dodging near parts high pressure oil pump, overall structure that tubular cavity 11 and near parts it are formed is compacter, be more conducive to the layout in motor.Wherein, the body of high-voltage oil cavity conventionally need to be by being bolted on support, can on tubular cavity 11, offer the bolt sound insulation groove 25 mating with bolt, be used for holding bolt, not only can prevent from producing and rocking between bolt and tubular cavity 11, can also to bolt, play the effect of sound insulation de-noising, weaken further the noise in motor car engine.
Wherein, on through hole 12, can one-body moldedly have sound insulation tube 26, this sound insulation tube 26 can wrap up the pipeline of high pressure oil pump, makes noise be absorbed further, weaken by sound insulation tube 26, thereby the noise that high pressure oil pump is produced is less.Conventionally the body of high pressure oil pump will be connected with a plurality of solenoid valve sensors, can body institute on tubular cavity 11 and high pressure oil pump connected electromagnetic valve place, sound insulation tube 26 is also set, make sound insulation tube to noise absorption, weakening, prevent that noise is via body and the propagation of solenoid valve sensor of high pressure oil pump, thereby to a greater degree noise is weakened to processing.
Above-mentioned sound insulation tube 26 is interior can be provided with the second sound insulation groove, and the second sound insulation groove can play the effect of absorption, weakening to noise, reduce further the noise of high pressure oil pump.The structure of the second sound insulation groove can be similar or identical with the structure of the first sound insulation groove 22.Preferably, the outer surface of tubular cavity 11 can be curved surface, like this can be so that coordinating between tubular cavity 11 and miscellaneous part.
In the description of this specification, specific features, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.
Claims (9)
1. a denoising device for motor car engine mesohigh oil pump, is characterized in that, comprises tubular cavity, and described tubular cavity top closure, bottom end opening can pack the body of high pressure oil pump into by described bottom end opening; Described tubular cavity is provided with through hole, can penetrate the pipeline of high pressure oil pump by described through hole; When described high pressure oil pump is assemblied in described tubular cavity, the body interference fit of the internal surface of described tubular cavity and this high pressure oil pump, and all wrap up this external surface of high pressure oil pump; The material of described tubular cavity is soundproof material.
2. the denoising device of motor car engine mesohigh oil pump according to claim 1, it is characterized in that, the inwall of described tubular cavity bottom is provided with positioning boss, and when described high pressure oil pump is assemblied in described tubular cavity, the bottom surface of described high pressure oil pump body is against described positioning boss.
3. the denoising device of motor car engine mesohigh oil pump according to claim 2, it is characterized in that, the internal surface on described tubular cavity top is provided with gripping surface, and when described high pressure oil pump is assemblied in tubular cavity, described gripping surface is against the end face of described high pressure oil pump body.
4. according to the denoising device of the motor car engine mesohigh oil pump described in claim 1-3 any one, it is characterized in that, described tubular cavity inner wall is provided with a plurality of the first sound insulation grooves that extend along circumferentially.
5. the denoising device of motor car engine mesohigh oil pump according to claim 4, is characterized in that, described tubular cavity inner wall is provided with a plurality of sound insulation faceted pebbles that extend longitudinally.
6. the denoising device of motor car engine mesohigh oil pump according to claim 4, is characterized in that, the material of described tubular cavity is sound-isolating sponge.
7. the denoising device of motor car engine mesohigh oil pump according to claim 1, is characterized in that, one-body molded on described through hole have a sound insulation tube, and described sound insulation tube can wrap up the pipeline of described high pressure oil pump.
8. the denoising device of motor car engine mesohigh oil pump according to claim 7, is characterized in that, is provided with the second sound insulation groove in described sound insulation tube.
9. the denoising device of motor car engine mesohigh oil pump according to claim 4, is characterized in that, the outer surface of described tubular cavity is curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460482.XU CN203463213U (en) | 2013-07-30 | 2013-07-30 | Noise reduction device for high-pressure oil pump in automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460482.XU CN203463213U (en) | 2013-07-30 | 2013-07-30 | Noise reduction device for high-pressure oil pump in automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463213U true CN203463213U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460482.XU Expired - Fee Related CN203463213U (en) | 2013-07-30 | 2013-07-30 | Noise reduction device for high-pressure oil pump in automobile engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203463213U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470414A (en) * | 2013-09-05 | 2013-12-25 | 安庆市高成汽配有限责任公司 | Novel manual oil delivery pump for compact-type fuel oil filter |
| CN104895719A (en) * | 2015-06-19 | 2015-09-09 | 重庆长安汽车股份有限公司 | High-pressure oil pump mounting seat with sound insulation structure |
| WO2017071921A1 (en) * | 2015-10-28 | 2017-05-04 | Robert Bosch Gmbh | High-pressure fuel pump |
-
2013
- 2013-07-30 CN CN201320460482.XU patent/CN203463213U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470414A (en) * | 2013-09-05 | 2013-12-25 | 安庆市高成汽配有限责任公司 | Novel manual oil delivery pump for compact-type fuel oil filter |
| CN104895719A (en) * | 2015-06-19 | 2015-09-09 | 重庆长安汽车股份有限公司 | High-pressure oil pump mounting seat with sound insulation structure |
| CN104895719B (en) * | 2015-06-19 | 2017-08-01 | 重庆长安汽车股份有限公司 | A kind of high-pressure oil pump mounting seat with sound-insulating structure |
| WO2017071921A1 (en) * | 2015-10-28 | 2017-05-04 | Robert Bosch Gmbh | High-pressure fuel pump |
| CN108290530A (en) * | 2015-10-28 | 2018-07-17 | 罗伯特·博世有限公司 | High pressure fuel pump |
| US10309359B2 (en) | 2015-10-28 | 2019-06-04 | Robert Bosch Gmbh | High-pressure fuel pump |
| CN108290530B (en) * | 2015-10-28 | 2021-12-24 | 罗伯特·博世有限公司 | High-pressure fuel pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20210730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |