CN206617248U - With detraction function automobile fuel gas feeding structure - Google Patents
With detraction function automobile fuel gas feeding structure Download PDFInfo
- Publication number
- CN206617248U CN206617248U CN201720359417.6U CN201720359417U CN206617248U CN 206617248 U CN206617248 U CN 206617248U CN 201720359417 U CN201720359417 U CN 201720359417U CN 206617248 U CN206617248 U CN 206617248U
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- CN
- China
- Prior art keywords
- bent portion
- straight sections
- internal diameter
- fuel
- detraction
- Prior art date
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses with detraction function automobile fuel gas feeding structure, including the combustion gas tube body between fuel cavity and nozzle, the combustion gas tube body includes integrally formed straight sections and bent portion, one end of straight sections is integrally formed with fuel cavity by electric smelting increasing material manufacturing technique, and straight sections and the internal diameter of fuel cavity junction are gradually reduced along the direction that fuel cavity points to straight sections with y=log (2) X, X is natural number；One end of bent portion is connected with nozzle, and the internal diameter D of bent portion is 50~70mm, radius of curvature is bent portion internal diameter 1.5~1.8 times, and the wall thickness of bent portion is 1.5~2mm.The utility model solves the problem of generation easy to feed pipe larger recoil during larger and nozzle oil spout is lost in liquid fuel in existing engine combustion chamber feed pipe pipeline.
Description
Technical field
The utility model is related to engine gas field, and in particular to detraction function automobile fuel gas feeding structure.
Background technology
When fluid flows through some accessories, due to the change of side wall or flow, uniform flow is destroyed in this some areas,
Cause the change of size, direction or the distribution of flow velocity, resulting energy loss, as local losses.Local losses exists
Occupy in some trunking losses in very big proportion, particularly engine gas system, engine fuel pipeline is connected with shower nozzle
Place is usually lateral bending structure, and the bend pipe structure changes the flow direction of fuel so that in bend pipe during fuel liquid inflow bend pipe
Inner side and outer side occur in that vortex region, also create secondary flow phenomenon.Secondary Flow and main flow are superimposed, and make by bend pipe
Fluid particle it is for the helical movement, increase the loss of flood peak of bend pipe.In addition, general all larger, the cartridge of existing fuel cavity
Road and fuel cavity generally, be threadedly coupled, bolt coordinate or welding by way of link together, junction be one sharply
Edge, usually rectangular shaped, fuel from fuel cavity flow into fuel channel when, the sectional area sudden contraction of pipeline, fluid is first
Separated in the corner of big pipe, form Disengagement zone, a Disengagement zone is then also formed in tubule so that the loss of pipeline
Increase.
Utility model content
The purpose of this utility model, which is to provide, has detraction function automobile fuel gas feeding structure, solves liquid fuel existing
Generation larger recoil easy to feed pipe during larger and nozzle oil spout is lost in some engine combustion chamber feed pipe pipelines
The problem of power.
The utility model is achieved through the following technical solutions：
With detraction function automobile fuel gas feeding structure, including the combustion gas tube body between fuel cavity and nozzle, institute
Stating combustion gas tube body includes integrally formed straight sections and bent portion, and one end and the fuel cavity of straight sections pass through electric smelting increasing material manufacturing
Technique is integrally formed, and the internal diameter of straight sections and fuel cavity junction points to the direction of straight sections with y=log (2) X along fuel cavity
It is gradually reduced, X is natural number；One end of bent portion is connected with nozzle, and the internal diameter D of bent portion is 50~70mm, radius of curvature
For 1.5~1.8 times of bent portion internal diameter, the wall thickness of bent portion is 1.5~2mm.Further, connect in the prior art with fuel cavity
The Gas Pipe at place usually bend pipe structure is connect, this causes combustion gas liquid to be easily separated from bend pipe when flowing to gas pipeline out of fuel cavity
Wall, and form whirlpool area, cause damage；And when fuel oil enters combustion gas tube body out of fuel cavity, its bore becomes suddenly
Small, during the cross-sectional area sudden contraction of pipeline, fuel liquid is separated around the corner first, Disengagement zone is formed, in tubule
Also Disengagement zone is formed, local losses is more increased.The utility model devises a kind of new gas pipeline structure, first will be with combustion
The Gas Pipe of material chamber junction is designed as straight tube structure, reduces the loss caused by bend pipe；Secondly, by one end of straight sections with
Fuel cavity is integrally formed by electric smelting increasing material manufacturing technique, compared with prior art in the mode that is connected by screw bolts or welds, this
Utility model makes straight sections form overall structure with fuel cavity, and eliminates weld seam so that junction homogenous material properties,
Liquid is advantageously reduced to the viscous viscosity that avoids；Then, the junction of straight sections and fuel cavity is designed as a bending gradually
Shrinking structure, the arc change of the tapered configuration is gradually reduced along the direction that fuel cavity points to straight sections with y=log (2) X, tapered
Axisymmetrical of the curve that structure is formed along the section on straight sections axial direction on straight sections, i.e., using the axis of straight sections as x-axis,
So X value is symmetrical respectively about x-axis, and the structure of above circular arc so causes fuel liquid to enter loss system when in pipe
Number is substantially reduced, and finds that, when the curvilinear motion with y=log (2) X, loss coefficient can be reduced through inventor's many experiments
To less than 0.2, the loss of reduction is more.The place of gas pipeline and nozzle junction is designed as bend pipe structure, can effectively be dropped
Low nozzle is to the recoil of gas pipeline, because the recoil of horizontal direction can be shared all directions by bend pipe structure, it is to avoid
Recoil of the prior art acts directly on excessive to the liquid fuel impact in pipe on straight tube, causes asking for fluid reflux
Topic.Combustion gas tube body of the present utility model is the integral structure of disposal molding, and bending section need not weld with straight sections, not have
There is weld seam.
In addition, because the inertia of liquid fluid, the pressure distribution of fluid outside wall surface when flowing through bend pipe is different and streamline is sent out
Raw bending, fluid is acted on by centripetal force, and the pressure on the outside of such bend pipe is higher than the pressure of inner side, the fuel close to inner side
Fluid is in the state for supercharging of slowing down, and fluid can depart from wall, form whirlpool area, cause damage；And close to the The fuel stream in outside
Cognition is gradually flowed on the inside of pipe, but due to continuity, the fluid of tube hub again can wall diffluence laterally, so as to form one pair
Spiral helicine lateral flow, finally causes fluid energy losses.The internal diameter D of bent portion is designed as 50 by the utility model~
70mm, radius of curvature is 1.5~1.8 times of bent portion internal diameter, and the wall thickness of bent portion is 1.5~2mm, is increased on the basis of existing
The big radius of curvature of bent portion, further reduces centrifugal force when fluid is turned, while reducing pressure difference, reduces damage
Lose；And nor affect on recoil so that the loss in tube of recoil and bent portion obtains a preferably balance.
It is preferred that, the radius of curvature of the bent portion is 1.6 times of bent portion internal diameter.
Rubber cushion cover is also cased with the outside of bent portion, the rubber cushion cover is matched with the flexibility of bent portion.Enter one
Step, one end of bent portion is connected with nozzle, because nozzle can produce a recoil when spraying fuel toward combustion chamber to bent portion
Power, i.e., reverse impulse force, although bend pipe structure design has disperseed a part of recoil, but recoil can still make bent portion produce one
Fixed vibrations, to avoid bent portion from easily colliding other gas pipeline parts in this vibrations, cause pipe wear, and right
Liquid in pipe causes concussion, increases local losses, the rubber that the utility model is matched in one, bent portion overcoat with bent portion
Cushion collar, increases buffer index, to protect gas pipeline.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model has detraction function automobile fuel gas feeding structure, by the integrally formed straight sections of combustion gas tube body
Be connected respectively with fuel cavity and nozzle with bent portion, reduce the energy loss of fuel fluid, reduce recoil, achieve compared with
Big progress；
2nd, the utility model has detraction function automobile fuel gas feeding structure, straight sections and the internal diameter edge of fuel cavity junction
The direction that fuel cavity points to straight sections is gradually reduced with y=log (2) X, and X is natural number；One end of bent portion is connected with nozzle,
And the internal diameter D of bent portion is 50~70mm, radius of curvature is 1.5~1.8 times of bent portion internal diameter, and the wall thickness of bent portion is 1.5
~2mm, above structure reduce further fluid fuel chamber from loss when entering gas pipeline, and fluid is in warp architecture
Bent portion loss, while also causing the loss in tube of recoil and bent portion to obtain a preferably balance；
3rd, the utility model has detraction function automobile fuel gas feeding structure, and rubber buffer is also cased with the outside of bent portion
Set, the rubber cushion cover is matched with the flexibility of bent portion, enhances the protection to fuel channel body.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the utility model structural representation.
Mark and corresponding parts title in accompanying drawing：
1- fuel cavities, 2- straight sections, 3- bent portions, 5- rubber cushion covers, 6- junctions.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as limiting of the present utility model.
Embodiment 1
As shown in figure 1, the utility model has detraction function automobile fuel gas feeding structure, including positioned at fuel cavity 1 and spray
Combustion gas tube body between mouth, the combustion gas tube body includes integrally formed straight sections 2 and bent portion 3, one end of straight sections 2
Be integrally formed with fuel cavity 1 by electric smelting increasing material manufacturing technique, and straight sections 2 and the junction 6 of fuel cavity 1 internal diameter along fuel cavity
The direction of 1 sensing straight sections 2 is gradually reduced with y=log (2) X, and X is natural number；One end of bent portion 3 is connected with nozzle, and curved
The internal diameter D of pipe portion 3 is 50mm, radius of curvature is the internal diameter of bent portion 3 1.5~1.8 times, the wall thickness of bent portion 3 is 1.5mm.
The outside of bent portion 3 is also cased with rubber cushion cover 5, and the rubber cushion cover 5 is matched with the flexibility of bent portion 3.
Embodiment 2
As shown in figure 1, the utility model has detraction function automobile fuel gas feeding structure, on the basis of embodiment 1, institute
The radius of curvature for stating bent portion 3 is 1.6 times of the internal diameter of bent portion 3.
| Radius of curvature/bent portion internal diameter | 1.5 | 1.6 | 1.7 | 1.8 |
| Loss coefficient | 0.25 | 0.21 | 0.15 | 0.08 |
| Recoil (N) | 0.25 | 0.35 | 0.55 | 0.65 |
Pass through above-mentioned comparison, when the radius of curvature of bent portion 3 is 1.6 times of the internal diameter of bent portion 3, recoil and bent portion
Loss in tube can obtain one preferably balance.
Above-described embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that and be the foregoing is only embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, is equally replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (3)
1. there is detraction function automobile fuel gas feeding structure, including the combustion gas tube body positioned at fuel cavity (1) between nozzle, its
It is characterised by, the combustion gas tube body includes integrally formed straight sections (2) and bent portion (3), one end of straight sections (2) and combustion
Material chamber (1) is integrally formed by electric smelting increasing material manufacturing technique, and straight sections (2) and the internal diameter edge of fuel cavity (1) junction (6) are fired
The direction that material chamber (1) points to straight sections (2) is gradually reduced with y=log (2) X, and X is natural number；One end of bent portion (3) and spray
Mouth is connected, and the internal diameter D of bent portion (3) is 50~70mm, 1.5~1.8 times that radius of curvature is bent portion (3) internal diameter, bend pipe
The wall thickness in portion (3) is 1.5~2mm.
2. according to claim 1 have detraction function automobile fuel gas feeding structure, it is characterised in that the bent portion
(3) radius of curvature is 1.6 times of bent portion (3) internal diameter.
3. according to claim 1 have detraction function automobile fuel gas feeding structure, it is characterised in that in bent portion (3)
Outside is also cased with rubber cushion cover (5), and the rubber cushion cover (5) matches with the flexibility of bent portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359417.6U CN206617248U (en) | 2017-04-07 | 2017-04-07 | With detraction function automobile fuel gas feeding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359417.6U CN206617248U (en) | 2017-04-07 | 2017-04-07 | With detraction function automobile fuel gas feeding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617248U true CN206617248U (en) | 2017-11-07 |
Family
ID=60235556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720359417.6U Expired - Fee Related CN206617248U (en) | 2017-04-07 | 2017-04-07 | With detraction function automobile fuel gas feeding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958497A (en) * | 2017-04-07 | 2017-07-18 | 四川森洁燃气设备有限公司 | A kind of motor vehicle fuel inlet for being conducive to detracting |
| CN109612105A (en) * | 2018-11-30 | 2019-04-12 | 南安市博铭工业设计有限公司 | The gas heater gas pipeline of variable diameter speed-raising and anti-blocking of backflowing |
| CN111766331A (en) * | 2020-07-09 | 2020-10-13 | 安徽工程大学 | Portable building material combustion performance testing device and testing method thereof |
-
2017
- 2017-04-07 CN CN201720359417.6U patent/CN206617248U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958497A (en) * | 2017-04-07 | 2017-07-18 | 四川森洁燃气设备有限公司 | A kind of motor vehicle fuel inlet for being conducive to detracting |
| CN109612105A (en) * | 2018-11-30 | 2019-04-12 | 南安市博铭工业设计有限公司 | The gas heater gas pipeline of variable diameter speed-raising and anti-blocking of backflowing |
| CN109612105B (en) * | 2018-11-30 | 2021-04-30 | 河北任德管业有限公司 | Gas pipeline for reducing speed-increasing and backflow-blocking-preventing gas water heater |
| CN111766331A (en) * | 2020-07-09 | 2020-10-13 | 安徽工程大学 | Portable building material combustion performance testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20180407 |