CN114962093A - Injection valve flow stabilizing cavity integrated structure for improving jet noise of fuel pump - Google Patents
Injection valve flow stabilizing cavity integrated structure for improving jet noise of fuel pump Download PDFInfo
- Publication number
- CN114962093A CN114962093A CN202210442800.3A CN202210442800A CN114962093A CN 114962093 A CN114962093 A CN 114962093A CN 202210442800 A CN202210442800 A CN 202210442800A CN 114962093 A CN114962093 A CN 114962093A
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- China
- Prior art keywords
- injection valve
- valve seat
- seat
- oil
- fuel pump
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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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 140
- 239000007924 injection Substances 0.000 title claims abstract description 140
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims 4
- 230000006641 stabilisation Effects 0.000 claims 4
- 238000011105 stabilization Methods 0.000 claims 4
- 239000012530 fluid Substances 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 69
- 239000000295 fuel oil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0041—Means for damping pressure pulsations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
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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
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention belongs to the technical field of automobile fuel pump parts, and particularly relates to an injection valve flow stabilizing cavity integrated structure for improving jet noise of a fuel pump; the injection valve is fixed in the injection valve seat, an inlet of the injection valve is communicated with an oil return port of the injection valve seat, an outlet of the injection valve is communicated with an oil outlet spray pipe and a flow stabilizing cavity of the injection valve seat, and the flow stabilizing cavity is communicated with the oil outlet spray pipe of the injection valve seat; the invention can effectively improve the turbulence disturbance degree of the fuel in the injection flow passage, greatly improves the noise of the fluid vibration structure and the fluid friction noise, and improves the user experience of the noise in the vehicle.
Description
Technical Field
The invention belongs to the technical field of automobile fuel pump parts, and particularly relates to an injection valve flow stabilizing cavity integrated structure for improving jet noise of a fuel pump.
Background
At present, along with higher and higher experience requirements of users on noise in a vehicle, the perception degree of the working noise of the fuel pump under the idling working condition of the whole vehicle is more and more emphasized. For the fuel pump assembly without the oil return system, the oil return structure is integrated in the fuel pump assembly, redundant oil returned by a pump core motor flows into the injection valve after passing through the pressure regulating valve, and the fuel outside the oil storage barrel is driven to be sucked and sprayed into the oil storage barrel under the action of jet flow. In the injection process, because the return oil flow rate at the outlet of the injection valve is high, turbulence disturbance is easy to occur in the flow channel, and fluid vibration structure noise and fluid friction noise are caused.
Above-mentioned fuel pump noise problem can influence driver and crew's in-vehicle experience and impression, when the fuel pump work noise was obvious, more can take place user NVH and complain scheduling problem.
Disclosure of Invention
In order to overcome the problems, the invention provides an injection valve flow stabilizing cavity integrated structure for improving jet flow noise of a fuel pump, which can effectively improve turbulence disturbance degree of fuel in an injection flow channel, greatly improve noise of a fluid vibration structure and fluid friction noise, and improve user experience of noise in a vehicle.
The utility model provides an improve injection valve stationary flow chamber integrated configuration of fuel pump efflux noise, including oil storage bucket 1, draw and penetrate disk seat 2, umbrella valve 3 and injection valve 4, wherein draw and penetrate disk seat 2 and fix in oil storage bucket 1, and draw and form steady flow chamber 5 between disk seat 2 and the oil storage bucket 1, umbrella valve 3 is fixed in oil storage bucket 1 of drawing disk seat 2 below, and umbrella valve 3 and steady flow chamber 5 intercommunication, draw and penetrate valve 4 and fix in drawing disk seat 2, and draw the entry of injection valve 4 and draw the oil return opening intercommunication of drawing disk seat 2, the export of drawing valve 4 and the play oil spray pipe and the steady flow chamber 5 of drawing disk seat 2 all communicate, also communicate between the play oil spray pipe of steady flow chamber 5 and injection disk seat 2 simultaneously.
The oil storage barrel 1 is internally provided with a mounting structure for fixing the injection valve seat 2.
The umbrella valve 3 is fixed in the oil storage barrel 1 below the injection valve seat 2 through an umbrella valve mounting structure arranged at the bottom in the oil storage barrel 1.
Draw the disk seat 2 to be integrative, draw the disk seat oil return 21 including vertical setting, draw the 21 lower extremes of disk seat oil return to be equipped with and draw and penetrate valve mounting groove 23, draw and penetrate valve mounting groove 23 top and be equipped with the through-hole with draw the 21 intercommunications of disk seat oil return, draw and penetrate valve mounting groove 23 left side and be equipped with L template 24, draw and penetrate valve mounting groove 23 right side and be equipped with connecting plate 25, connecting plate 25 right side is equipped with the draw and penetrates the disk seat oil outlet spray tube 22 of horizontal setting, wherein draw 4 one end of injection valve to be fixed in drawing the valve mounting groove 23, the other end stretches out outside drawing valve mounting groove 23, and be located connecting plate 25 below, and draw the through-hole intercommunication that the entry and the 23 tops of injection valve 4 were equipped with.
The outlet of the injection valve 4 is communicated with the injection valve seat oil outlet spray pipe 22 and the flow stabilizing cavity 5, and meanwhile, the flow stabilizing cavity 5 is also communicated with the injection valve seat oil outlet spray pipe 22.
The oil return port 21 of the injection valve seat 2 is used for receiving returned fuel oil, and the oil outlet nozzle 22 of the injection valve seat 2 is communicated with the inside of the oil storage barrel 1.
A flow stabilizing cavity 5 is formed between the lower part of the L-shaped plate 24, the lower part of the injection valve mounting groove 23, the lower part of the connecting plate 25 and the oil storage barrel 1, and the umbrella valve 3 is positioned in the flow stabilizing cavity 5 below the injection valve mounting groove 23.
The invention has the beneficial effects that:
1. the invention has simple structural design and strong platformization universality;
2. according to the structure, the oil storage barrel and the injection valve seat are utilized to form a flow stabilizing cavity, the flow states of injection oil return and fuel oil suction are improved, the fuel oil is balanced and stable and then flows into the oil storage barrel through the oil outlet spray pipe of the injection valve seat, the turbulence disturbance degree of the fuel oil in an injection flow channel is effectively improved, the noise of a fluid vibration structure and the noise of fluid friction are greatly improved, and the user experience of noise in a vehicle is improved;
3. the structure of the invention integrates the umbrella valve, the injection valve and the flow stabilizing cavity, thus effectively reducing the number of parts, lowering the cost, ensuring the injection efficiency and simultaneously considering the noise optimization effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1, an oil storage barrel, 2, an injection valve seat, 21, an oil return port of the injection valve seat, 22, an oil outlet spray pipe of the injection valve seat, 23, an injection valve installation groove, 24, an L-shaped plate, 25, a connecting plate, 3, an umbrella valve, 4, an injection valve and 5, a flow stabilizing cavity are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example 1
As shown in fig. 1, an injection valve steady flow cavity integrated structure for improving jet noise of a fuel pump comprises an oil storage barrel 1, an injection valve seat 2, an umbrella valve 3 and an injection valve 4, wherein the injection valve seat 2 is fixed in the oil storage barrel 1, a steady flow cavity 5 is formed between the injection valve seat 2 and the oil storage barrel 1, the umbrella valve 3 is fixed in the oil storage barrel 1 below the injection valve seat 2, the umbrella valve 3 is communicated with the steady flow cavity 5, the injection valve 4 is fixed in the injection valve seat 2, an inlet of the injection valve 4 is communicated with an oil return port of the injection valve seat 2, an outlet of the injection valve 4 is communicated with an oil outlet spray pipe and the steady flow cavity 5 of the injection valve seat 2, and the steady flow cavity 5 is communicated with an oil outlet spray pipe of the injection valve seat 2.
The oil storage barrel 1 is internally provided with a mounting structure for fixing the injection valve seat 2.
The umbrella valve 3 is fixed in the oil storage barrel 1 below the injection valve seat 2 through an umbrella valve mounting structure arranged at the bottom in the oil storage barrel 1.
The injection valve seat 2 is an integrated piece, including the vertical injection valve seat oil return port 21 that sets up, the injection valve seat oil return port 21 lower extreme is equipped with the injection valve mounting groove 23, be equipped with the through-hole that communicates with injection valve seat oil return port 21 above the injection valve mounting groove 23, injection valve mounting groove 23 left side is equipped with L template 24, injection valve mounting groove 23 right side is equipped with connecting plate 25, the connecting plate 25 right side is equipped with the injection valve seat oil outlet spray tube 22 of horizontal setting, wherein 4 one end of injection valve is fixed in the injection valve mounting groove 23, the other end stretches out outside the injection valve mounting groove 23, and be located connecting plate 25 below, and the through-hole that the entry and the injection valve mounting groove 23 top of injection valve 4 were equipped with communicates.
The outlet of the injection valve 4 is communicated with the injection valve seat oil outlet spray pipe 22 and the flow stabilizing cavity 5, and meanwhile, the flow stabilizing cavity 5 is also communicated with the injection valve seat oil outlet spray pipe 22.
The injection valve seat oil return port 21 of the injection valve seat 2 is used for receiving backflow fuel oil, and the injection valve seat oil outlet spray pipe 22 of the injection valve seat 2 is communicated with the interior of the oil storage barrel 1.
A flow stabilizing cavity 5 is formed below the L-shaped plate 24, below the injection valve mounting groove 23, below the connecting plate 25 and between the oil storage barrel 1, and the umbrella valve 3 is positioned in the flow stabilizing cavity 5 below the injection valve mounting groove 23.
Please refer to fig. 1.
The invention comprises a design structure which is composed of an oil storage barrel 1, an injection valve seat 2, an umbrella valve 3, an injection valve 4 and a steady flow cavity 5.
An umbrella valve mounting structure is designed at the bottom of the oil storage barrel 1 for mounting an umbrella valve 3, and an injection valve seat mounting structure is designed for mounting an injection valve seat 2; the injection valve seat 2 is provided with an oil return port and an oil outlet nozzle and is provided with an injection valve clamping structure for clamping with the injection valve 4, the injection valve seat 2 and an injection valve seat mounting structure on the oil storage barrel 1 are assembled to form a flow stabilizing cavity 5, the cavity can perform diffusion and rectification on oil return sprayed by the injection valve 4 and fuel oil sucked by the umbrella valve 3, and fluid flows out of an oil outlet spray pipe 22 of the injection valve seat 2 after reaching a stable balance state; the umbrella valve 3 is arranged on an umbrella valve mounting structure on the oil storage barrel 1, so that fuel oil outside the oil storage barrel 1 is ensured to be sucked and fuel oil in the oil storage barrel 1 is prevented from flowing out.
The design structure and the connection mode of the oil storage barrel 1, the injection valve seat 2, the umbrella valve 3, the injection valve 4 and the flow stabilizing cavity 5 are not limited to the structure in the schematic diagram, and any structure and connection mode which can achieve the integrated mode effect of the umbrella valve, the injection valve and the flow stabilizing cavity are contained.
The working process of the invention is as follows:
during the structural work process of the invention, the backflow fuel flows into the inlet of the injection valve 4 through a through hole above the injection valve mounting groove 23 through the injection valve seat oil return port 21 and is jetted out from the outlet of the injection valve 4, part of the backflow fuel enters the steady flow cavity 5 formed after the injection valve seat 2 and the injection valve seat mounting structure of the oil storage barrel 1 are assembled, part of the fuel outside the oil storage barrel 1 is sucked into the steady flow cavity 5 from the umbrella valve 3 under the jet flow action of the injection valve 4, the fuel jetted from the outlet of the injection valve 4 and the fuel sucked by the umbrella valve 3 are subjected to pressure expansion and rectification in the steady flow cavity 5, and after a stable balance state is achieved, the backflow fuel flows out from the injection valve seat oil outlet nozzle 22 and enters the oil storage barrel 1.
The structure of the invention realizes the integrated design structure of the umbrella valve 3, the injection valve 4 and the steady flow cavity 5, effectively improves the turbulence disturbance degree of fuel in the injection flow channel, greatly improves the fluid vibration structure noise and the fluid friction noise, ensures the injection efficiency, simultaneously considers the noise optimization effect and improves the noise user experience in the vehicle.
Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the scope of the present invention is not limited to the specific details of the above embodiments, and any person skilled in the art can substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention, and these simple modifications belong to the scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The utility model provides an improve injection valve stationary flow chamber integrated morphology of fuel pump efflux noise, its characterized in that includes oil storage bucket (1), draw and penetrate disk seat (2), umbrella valve (3) and draw and penetrate valve (4), wherein draw and penetrate disk seat (2) and fix in oil storage bucket (1), and draw and form stationary flow chamber (5) between disk seat (2) and oil storage bucket (1), umbrella valve (3) are fixed in oil storage bucket (1) of drawing and penetrating disk seat (2) below, and umbrella valve (3) and stationary flow chamber (5) intercommunication, draw and penetrate valve (4) and fix in drawing and penetrate disk seat (2), and the entry and the oil return opening intercommunication of drawing disk seat (2) of drawing and penetrating disk seat (4), the export of drawing and penetrating disk seat (2) go out the oil spray pipe and stationary flow chamber (5) all communicate, also communicate between stationary flow chamber (5) and the play oil spray pipe of drawing and penetrating disk seat (2) simultaneously.
2. The injection valve flow stabilization cavity integrated structure for improving the jet noise of the fuel pump according to claim 1, characterized in that a mounting structure for fixing the injection valve seat (2) is arranged inside the oil storage barrel (1).
3. The injection valve flow stabilization cavity integrated structure for improving the jet noise of the fuel pump according to claim 2, characterized in that the umbrella valve (3) is fixed in the fuel storage barrel (1) below the injection valve seat (2) through an umbrella valve mounting structure arranged at the bottom in the fuel storage barrel (1).
4. The injection valve flow stabilization cavity integrated structure for improving jet noise of the fuel pump according to claim 3, the injection valve seat is characterized in that the injection valve seat (2) is an integral piece and comprises an injection valve seat oil return port (21) which is vertically arranged, an injection valve mounting groove (23) is arranged at the lower end of the injection valve seat oil return port (21), a through hole communicated with the injection valve seat oil return port (21) is arranged above the injection valve mounting groove (23), an L-shaped plate (24) is arranged on the left side of the injection valve mounting groove (23), a connecting plate (25) is arranged on the right side of the injection valve mounting groove (23), an injection valve seat oil outlet spray pipe (22) which is transversely arranged is arranged on the right side of the connecting plate (25), wherein one end of the injection valve (4) is fixed in the injection valve mounting groove (23), the other end extends out of the injection valve mounting groove (23), and is positioned below the connecting plate (25), and the inlet of the injection valve (4) is communicated with a through hole arranged at the top of the injection valve mounting groove (23).
5. The injection valve flow stabilizing cavity integrated structure for improving the jet noise of the fuel pump according to claim 4, wherein the outlet of the injection valve (4) is communicated with both the injection valve seat oil outlet nozzle (22) and the flow stabilizing cavity (5), and the flow stabilizing cavity (5) is communicated with the injection valve seat oil outlet nozzle (22).
6. The injection valve flow stabilization cavity integrated structure for improving the jet noise of the fuel pump according to claim 5, characterized in that an injection valve seat oil return port (21) of the injection valve seat (2) is used for receiving backflow fuel, and an injection valve seat oil outlet nozzle (22) of the injection valve seat (2) is communicated with the inside of the oil storage barrel (1).
7. The injection valve flow stabilizing cavity integrated structure for improving the jet noise of the fuel pump according to claim 6, characterized in that a flow stabilizing cavity (5) is formed below the L-shaped plate (24), below the injection valve mounting groove (23), below the connecting plate (25) and the oil storage barrel (1), and the umbrella valve (3) is positioned in the flow stabilizing cavity (5) below the injection valve mounting groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442800.3A CN114962093A (en) | 2022-04-25 | 2022-04-25 | Injection valve flow stabilizing cavity integrated structure for improving jet noise of fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442800.3A CN114962093A (en) | 2022-04-25 | 2022-04-25 | Injection valve flow stabilizing cavity integrated structure for improving jet noise of fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114962093A true CN114962093A (en) | 2022-08-30 |
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ID=82979211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210442800.3A Pending CN114962093A (en) | 2022-04-25 | 2022-04-25 | Injection valve flow stabilizing cavity integrated structure for improving jet noise of fuel pump |
Country Status (1)
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|---|---|
| CN (1) | CN114962093A (en) |
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| CN207974900U (en) * | 2017-12-25 | 2018-10-16 | 中国第一汽车股份有限公司 | A kind of left and right grease chamber homogeneous oil supply mechanism |
| CN208718814U (en) * | 2018-08-02 | 2019-04-09 | 重庆德格科技发展有限公司 | A kind of gasoline pressure adjuster denoising structure of fuel oil pump assembly |
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| CN210370972U (en) * | 2019-07-27 | 2020-04-21 | 温州锦佳汽车零部件有限公司 | Fuel pump assembly with single-oil-outlet split-flow double-end injection structure |
| CN212202303U (en) * | 2020-06-10 | 2020-12-22 | 汇润机电有限公司 | Injection oil storage assembly of fuel pump |
| CN112343742A (en) * | 2020-11-30 | 2021-02-09 | 浙江睿峰电喷系统有限公司 | Novel oil return structure of fuel pump assembly |
| CN213953775U (en) * | 2020-12-12 | 2021-08-13 | 重庆万力联兴实业(集团)有限公司 | Novel near-end injection assembly for vehicle |
-
2022
- 2022-04-25 CN CN202210442800.3A patent/CN114962093A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202811154U (en) * | 2012-09-10 | 2013-03-20 | 联合汽车电子有限公司 | Oil pump support assembly |
| CN103032218A (en) * | 2012-12-24 | 2013-04-10 | 长城汽车股份有限公司 | Fuel oil pump and automobile adopting fuel oil pump |
| CN104632480A (en) * | 2015-01-09 | 2015-05-20 | 安徽江淮汽车股份有限公司 | Oil transfer pump oil return structure |
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| CN112343742A (en) * | 2020-11-30 | 2021-02-09 | 浙江睿峰电喷系统有限公司 | Novel oil return structure of fuel pump assembly |
| CN213953775U (en) * | 2020-12-12 | 2021-08-13 | 重庆万力联兴实业(集团)有限公司 | Novel near-end injection assembly for vehicle |
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