CN208816260U - Sound insulation device for oil rail oil sprayer assembly - Google Patents
Sound insulation device for oil rail oil sprayer assembly Download PDFInfo
- Publication number
- CN208816260U CN208816260U CN201821479961.5U CN201821479961U CN208816260U CN 208816260 U CN208816260 U CN 208816260U CN 201821479961 U CN201821479961 U CN 201821479961U CN 208816260 U CN208816260 U CN 208816260U
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- China
- Prior art keywords
- blimp
- sound arrester
- oil
- oily rail
- sound
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- 238000009413 insulation Methods 0.000 title claims abstract description 8
- 239000000446 fuel Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 20
- 238000009434 installation Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model provides a noise insulation for oil rail sprayer assembly, belongs to automobile engine technical field, this noise insulation for oil rail sprayer assembly, oil rail sprayer assembly wherein includes the oil rail body and sets up the oil pipe that advances above that, the pencil connector that sets up on sprayer and the sprayer, this noise insulation includes the sound-proof housing with oil rail body cooperation joint, the sound-proof housing location is between valve door chamber shroud and air intake manifold, be provided with on the sound-proof housing with advance oil pipe, pencil connector complex dodges location structure, the beneficial effects of the utility model are that, this noise insulation overall structure is simple stable, low in manufacturing cost, light in weight, engine boundary requirement is considered in its structural design, makes easy dismounting, and the location is stable, plays the effect of arrangement location moreover to its peripheral part.
Description
Technical field
The utility model relates to technical field of automobile engine more particularly to a kind of oily rail injector assembly to be filled with sound insulation
It sets.
Background technique
Combustion noise and mechanical noise can be divided into according to the mechanism of production of engine noise.Burning is formed by pressure vibration
Dynamic by body is combustion noise to the noise of external radiation, the vibration and mutually impact that mechanical impact effect generates between movement parts
The noise excited is mechanical noise.
Oily rail injector assembly is components very crucial in engine fuel supply system, and fuel oil is from fuel tank through firing
Oil pump reaches oily rail injector assembly by fuel pipe, and when fuel injector work, fuel oil distributes each to engine through fuel injector
Cylinder, to meet the fuel demand of engine continuous work.Fuel injector work produces due to structure design necessarily mechanical shock occurs
Raw vibration and noise, the noise that fuel injector generates are propagated and are amplified by oily rail, travel to human ear by air radiation approach, although
It is unlikely to generate the noise being difficult to accept, but gives the artificial impression big at subjective noise；In engine idle operation, because
After combustion noise is relatively small, oily rail injector assembly noise is especially highlighted.Therefore engine noise idling is reduced
When work noise focus then on the noise for reducing oily rail injector assembly.
Oily rail injector assembly generates vibration at work and noise is its inherent characteristic, and oily rail injector assembly exploitation is arrived
Now, technical aspect has been in the mature stage, single to need to pay sizable cost price from itself reduction noise.And
In the prior art, the device of engine noise is reduced in the presence of structure is complicated, processing cost is high, dismounting is inconvenient；And due to
Oily rail injector assembly is fixed in the cylinder head of engine, the fixed valve chamber cover in the upper end of cylinder head, and close to oil
It is additionally provided with the various control valves being connected with oil circuit therein at the position of rail injector assembly, such as EGR valve, OCV valve, also sets up
There are various pipelines, for example, the triton pipe being connected with inlet manifold, booster outlet pipe etc., existing sound arrester structure design
Shi Wei fully considers that engine boundary requires, and makes to mount and dismount more troublesome, but also can make the mixed and disorderly nothing of the components on periphery
Chapter is not easy to recognize, it is also possible to the problems such as will appear loosening, and these problems then seriously affect the NVH performance of automobile and take and relax
Adaptive, it would be highly desirable to improve.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of oily rail injector assembly sound arrester, main
Solve the problems, such as the existing device complicated integral structure for reducing oily rail injector assembly noise, at high cost, secondly solution
The problem of not fully considering that engine boundary requires in the design of sound arrester structure, being not sufficiently stable installation positioning, purpose
It is, by designing, a kind of overall structure simple and stable, manufacturing cost is low, makes the design of its structure in view of engine boundary is wanted
It asks, makes convenient for disassembly and assembly, positioning stablity, and play the role of arranging positioning to its circumferential component.
To achieve the above object, the technical scheme adopted by the utility model to solve the technical problem is as follows: the oil rail spray
Oily device assembly sound arrester, the oily rail injector assembly include oily rail ontology and the oil inlet pipe being disposed thereon, oil spout
The wire harness connector being arranged on device and fuel injector, which is characterized in that the sound arrester includes and the oily rail body fits
The blimp of clamping, the blimp are located between valve chamber cover and inlet manifold, are provided on the blimp and institute
State the evacuation location structure of oil inlet pipe, wire harness connector cooperation.
Further, the bar shaped holding tank with the oily rail body fits clamping, the item are provided in the blimp
The section of shape holding tank is set as arc-shaped, and the both ends of the blimp are provided with the U-shaped clamping of the oily rail ontology positioning
Mouthful.
Further, the blimp is set as U-shaped shell structure, and the one of one end of the blimp and valve chamber cover
Side is inconsistent, and the other end of the blimp and the outside of inlet manifold are inconsistent.
Further, it is arc-shaped that section is provided on the inconsistent end face in the side of the blimp and valve chamber cover
Bar shaped escape groove, the bar shaped escape groove is adapted with the bolt mounting portion of the valve cover outer side of lid.
Further, it is described evacuation location structure include with the oil inlet pipe be engaged by clamping blocked hole and with the harness
The opposite spliced eye of connector.
Further, the blocked hole is arranged to curved slot arrangement along the turning of blimp.
Further, the outside of blimp is arranged in the spliced eye, and is set as ellipse hole.
Further, corner location of the blimp close to inlet manifold one end is additionally provided with pipeline avoid holes, described
The both ends of blimp are also respectively provided with valve body escape groove compatible with the control valve on engine.
Further, the oily rail ontology is fixed in cylinder head by fastening bolt, the inside setting of the blimp
There is the circular groove for avoiding the fastening bolt.
Further, the blimp uses density of material for 90~120kg/m3Polyurethane foam material one at
Type.
The beneficial effects of the utility model are:
1, the sound arrester is fitted in the outside of oily rail ontology by blimp and the clamping of oily rail body fits, at the same make every
Sound cover is located between valve chamber cover and inlet manifold, and by the evacuation location structure on blimp that oily rail injector is total
Oil inlet pipe, wire harness connector in are positioned, and the overall structure of blimp is simple, at low cost, easy for installation, positioning is steady
It is fixed, the transmissivity of noise produced by oily rail injector assembly is reduced, to keep noise caused by oily rail injector assembly logical
Crossing the decibel value that air radiation approach reaches at human ear reduces, and improves people to the master of noise produced by oily rail injector assembly
See auditory perception.
2, it is that arc-shaped bar shaped avoids that section is provided on the inconsistent end face in the side of blimp and valve chamber cover
Slot, bar shaped escape groove are adapted with the bolt mounting portion of valve cover outer side of lid；Turning of the blimp close to inlet manifold one end
Position is additionally provided with pipeline avoid holes, and the both ends of blimp are additionally provided with valve body evacuation compatible with the control valve on engine
Slot；The circular groove for avoiding the fastening bolt on oily rail ontology is provided on the inside of blimp.Blimp removes in structure design
Consider and other than the matching relationship of oily rail injector assembly, also fully considered that the boundary of engine requires, make dismounting not by
Limitation, and play the role of arranging positioning to components of the engine at oily rail injector assembly, keep engine whole
Body more compact structure is orderly.
3, the blimp uses density of material for 90~120kg/m3Polyurethane foam material be integrally formed, the material with
Oily rail ontology has certain frictional force, and is by oily rail ontology by the U-shaped card interface at both ends and internal bar shaped holding tank
It can be clamped positioning, fix blimp without fixation member, installing and dismounting is more simple and fast, firm position, and meets
Light-weighted requirement.
To sum up, the sound arrester overall structure simple and stable, manufacturing cost be low, the design of light-weight, its structure is in view of hair
Motivation boundary requires, and makes convenient for disassembly and assembly, positioning stablity, and plays the role of arranging positioning to its circumferential component.
Detailed description of the invention
Below to each width attached drawing of the utility model specification expression content and figure in label be briefly described:
Fig. 1 is that the utility model is assemblied in the structural schematic diagram on engine cylinder body；
Fig. 2 is the axonometric drawing of the utility model；
Fig. 3 is the top view of the utility model；
Fig. 4 is the bottom view of the utility model；
Label in above-mentioned figure is equal are as follows: 1. oily rail ontologies, 2. oil inlet pipes, 3. blimps, 31. bar shaped holding tanks, 32.U shape
Card interface, 33. bar shaped escape groove, 34. blocked holes, 35. spliced eyes, 36. pipeline avoid holes, 37. valve body escape groove, 38. is round
Groove, 4. valve chamber covers, 41. bolt mounting portions, 5. inlet manifold.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution in embodiment is clearly and completely described in attached drawing in type embodiment, and following embodiment is for illustrating this
Utility model, but be not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describing the utility model and simplifying description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.
For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
The utility model specific embodiment are as follows: as shown in Figure 1 to 4, it is a kind of oil rail injector assembly filled with sound insulation
It sets, oil rail injector assembly therein includes on oily rail ontology 1 and the oil inlet pipe 2, fuel injector and the fuel injector that are disposed thereon
The wire harness connector of setting, wire harness connector is connected by connection wiring harness with electronic control unit (ECU), for controlling the fortune of engine
Row, the sound arrester include the blimp 3 for cooperating clamping with oily rail ontology 1, and blimp 3 is located in valve chamber cover 4 and air inlet
Between manifold 5, the evacuation location structure with oil inlet pipe 2, wire harness connector cooperation, the i.e. sound arrester are provided on blimp 3
Cooperate clamping to be fitted in the outside of oily rail ontology 1 by blimp 3 and oily rail ontology 1, while blimp 3 being made to be located in cavaera
Between the cover 4 and inlet manifold 5, and pass through the evacuation location structure on blimp 3 for the oil inlet pipe in oily rail injector assembly
2, wire harness connector is positioned, and the overall structure of blimp is simple, at low cost, easy for installation, positioning stablity, reduces oily rail
The transmissivity of noise produced by injector assembly, so that noise caused by oily rail injector assembly be made to pass through air radiation approach
Reaching the decibel value at human ear reduces, and improves people to the subjective auditory perception of noise produced by oily rail injector assembly.
Specifically, as shown in Figure 2, Figure 4 shows, the bar shaped holding tank for cooperating clamping with oily rail ontology 1 is provided in blimp 3
31, the section of bar shaped holding tank 31 is set as arc-shaped, and the both ends of blimp 3 are provided with the U-shaped clamping for positioning oily rail ontology 1
Mouthfuls 32, oily rail ontology 1 is clamped by U-shaped card interface 32 and is limited, is located in oily rail ontology 1 in bar shaped holding tank 31, make every
Sound cover 3 stably and firmly positions the surface for being covered on oily rail ontology 1.
Specifically, in order to further increase the stability that blimp 3 positions, blimp 3 is set as U-shaped shell structure, should
3 inside of blimp is clamped with oily rail ontology 1, and the end face of 3 one end of blimp and the side of valve chamber cover 4 are inconsistent, specific to tie
Structure is that it is arc-shaped bar shaped escape groove that cross section is provided on the inconsistent end face in the side of blimp 3 and valve chamber cover 4
33, bar shaped escape groove 33 is adapted with the bolt mounting portion 41 in 4 outside of valve chamber cover, when which is installed, bar shaped evacuation
Slot 33 play the role of guiding clamping, make overall structural strength it is higher, installation it is more stable；The other end of blimp 3 and air inlet
The outside of manifold 5 is inconsistent, the end that blimp 3 is contacted with inlet manifold 5 can be designed to as needed with outside inlet manifold 5
The shape matched, it is smooth structure that the end that blimp 3 is contacted with inlet manifold 5 is only shown in this programme, certainly may be used
It is arranged to the other shapes such as arc-shaped structure.
Specifically, evacuation location structure includes the blocked hole 34 and opposite with wire harness connector being engaged by clamping with oil inlet pipe 2
Spliced eye 35, blocked hole 34 is arranged to curved slot arrangement along the turning of blimp 3, and curved slot arrangement has a certain range of
It is clamped space, convenient for adjusting the position of clamping according to the position of oil inlet pipe 2, the outside of blimp 3 is arranged in spliced eye 35, and sets
It is set to ellipse hole, shape and the shape of spliced eye 35 are adapted, and the area of section of ellipse hole is greater than spliced eye 35
Grafting area, insert or pull out connection wiring harness conveniently.
Optimally, corner location of the blimp 3 close to 5 one end of inlet manifold is additionally provided with pipeline avoid holes 36, such as Fig. 2 institute
Show, this pipeline avoid holes 36 is also provided with camber slot structure, and there are two settings, is located at the both ends of blimp 3, uses respectively
In carrying out positioning evacuation to the triton pipe in booster outlet pipe and inlet manifold, the work of further stable position is played to pipeline
With；The both ends of blimp 3 are also respectively provided with valve body escape groove 37 compatible with the control valve on engine, as shown in figure 4,
Blimp 3 is provided with a valve body escape groove 37 close to EGR valve, at this close to the side of 4 one end of valve chamber cover, and shape is
With the gap structure to match outside EGR valve, blimp 3 is also set close to the side of 5 one end of inlet manifold close to OCV valve, at this
It is equipped with a valve body escape groove 37, shape is and gap structure compatible outside OCV valve.
Optimally, as shown in figure 4, oily rail ontology 1 is fixed in cylinder head by fastening bolt, the inside of blimp 3 is set
It is equipped with the circular groove 38 of evacuation fastening bolt, after blimp 3, which is clamped, to be positioned, the top of the fastening bolt on oily rail ontology 1
Into in circular groove 38, keep clamping structure more stable.
Optimally, blimp 3 uses density of material for 90~120kg/m3Polyurethane foam material be integrally formed, the material
Material has certain frictional force with oily rail ontology 1, and will be oily by the U-shaped card interface 32 at both ends and internal bar shaped holding tank 31
Rail ontology 1 can be clamped positioning, without fixation member that blimp 3 is fixed, and installing and dismounting is more simple and fast, firm position,
And meet light-weighted requirement.
The specific installation steps of the sound arrester are: firstly, oily rail injector assembly is fixed on gas with fastening bolt
On cylinder cap, while making oil inlet pipe 2 thereon downward, the wire harness connector on fuel injector is outwardly for the spout of fuel injector outwardly；So
Afterwards, blocked hole 34 is connected on oil inlet pipe 2, while oily rail ontology 1 is clamped by U-shaped card interface 32 and is limited, make oily rail sheet
Body 1 is located in bar shaped holding tank 31, and 41 phase of bolt mounting portion of bar shaped escape groove 33 and 4 outside of valve chamber cover at this time
Adaptation, spliced eye 35 is opposite with wire harness connector, and pressing down on blimp 3 makes its clamping positioning；Finally, by booster outlet pipe
It is connected in pipeline avoid holes 36 with inlet manifold, while EGR valve, OCV valve is avoided by valve body escape groove 37.
To sum up, the sound arrester overall structure simple and stable, manufacturing cost be low, the design of light-weight, its structure is in view of hair
Motivation boundary requires, and makes convenient for disassembly and assembly, positioning stablity, and plays the role of arranging positioning to its circumferential component.
The above, some principles of the utility model that only explains through diagrams, this specification are not intended to this is practical
It is novel to be confined in the shown specific structure and the scope of application, thus it is all it is all may be utilized accordingly modify and wait
Jljl belongs to the applied the scope of the patents of the utility model.
Claims (10)
1. a kind of oil rail injector assembly sound arrester, the oily rail injector assembly includes oily rail ontology (1) and setting
The wire harness connector being arranged on oil inlet pipe (2) on it, fuel injector and fuel injector, which is characterized in that the sound arrester
Blimp (3) including cooperating clamping with the oily rail ontology (1), the blimp (3) be located in valve chamber cover (4) and into
Between gas manifold (5), it is provided on the blimp (3) and is tied with the evacuation positioning of the oil inlet pipe (2), wire harness connector cooperation
Structure.
2. sound arrester according to claim 1, it is characterised in that: be provided in the blimp (3) and the oily rail
The bar shaped holding tank (31) of ontology (1) cooperation clamping, the section of the bar shaped holding tank (31) are set as arc-shaped, the sound insulation
The both ends of cover (3) are provided with the U-shaped card interface (32) for positioning the oily rail ontology (1).
3. sound arrester according to claim 2, it is characterised in that: the blimp (3) is set as U-shaped shell structure,
One end of the blimp (3) and the side of valve chamber cover (4) are inconsistent, the other end and air inlet discrimination of the blimp (3)
The outside for managing (5) is inconsistent.
4. sound arrester according to claim 3, it is characterised in that: the one of the blimp (3) and valve chamber cover (4)
It is arc-shaped bar shaped escape groove (33), the bar shaped escape groove (33) and the gas that section is provided on the inconsistent end face in side
Bolt mounting portion (41) on the outside of door room the cover (4) is adapted.
5. sound arrester according to claim 2, it is characterised in that: the evacuation location structure includes and the oil inlet pipe
(2) blocked hole (34) and the spliced eye opposite with the wire harness connector (35) being engaged by clamping.
6. sound arrester according to claim 5, it is characterised in that: blocked hole (34) the turning along blimp (3)
Angle is arranged to curved slot arrangement.
7. sound arrester according to claim 5, it is characterised in that: the spliced eye (35) is arranged in blimp (3)
Outside, and it is set as ellipse hole.
8. sound arrester described in any one according to claim 1~7, it is characterised in that: the blimp (3) is close to air inlet
The corner location of manifold (5) one end is additionally provided with pipeline avoid holes (36), the both ends of the blimp (3) be also respectively provided with
The compatible valve body escape groove (37) of control valve on engine.
9. sound arrester according to claim 8, it is characterised in that: the oil rail ontology (1) is fixed by fastening bolt
In cylinder head, the circular groove (38) for avoiding the fastening bolt is provided on the inside of the blimp (3).
10. sound arrester according to claim 8, it is characterised in that: the blimp (3) use density of material for 90~
120kg/m3Polyurethane foam material be integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821479961.5U CN208816260U (en) | 2018-09-11 | 2018-09-11 | Sound insulation device for oil rail oil sprayer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821479961.5U CN208816260U (en) | 2018-09-11 | 2018-09-11 | Sound insulation device for oil rail oil sprayer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816260U true CN208816260U (en) | 2019-05-03 |
Family
ID=66276585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821479961.5U Active CN208816260U (en) | 2018-09-11 | 2018-09-11 | Sound insulation device for oil rail oil sprayer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816260U (en) |
-
2018
- 2018-09-11 CN CN201821479961.5U patent/CN208816260U/en active Active
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| GR01 | Patent grant |