CN104847706A - Method for reducing noise of turbine pump of fuel oil supply system - Google Patents
Method for reducing noise of turbine pump of fuel oil supply system Download PDFInfo
- Publication number
- CN104847706A CN104847706A CN201510133854.1A CN201510133854A CN104847706A CN 104847706 A CN104847706 A CN 104847706A CN 201510133854 A CN201510133854 A CN 201510133854A CN 104847706 A CN104847706 A CN 104847706A
- Authority
- CN
- China
- Prior art keywords
- oil inlet
- inlet passage
- pump
- noise
- supply system
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a method for reducing noise of a turbine pump of a fuel oil supply system. The method for reducing the noise of the turbine pump of the fuel oil supply system is characterized in that the noise is suppressed to diffuse to the outside of a pump shell through the method that an oil inlet channel (3) communicated with a pump cavity (2) is bent or/and a baffle (4) is arranged in the oil inlet channel (3). The method for reducing the noise of the turbine pump of the fuel oil supply system is simple, the improvement on structure is less, the use is convenient, the oil feeding of the turbine pump is not affected, the 30-50 degree and double frequency noise generated by a worm wheel can be effectively reduced, the noise of a turbine pump of an automobile fuel oil system is reduced, and the comfort of taking an automobile is improved.
Description
Technical field
The present invention relates to a kind of method reducing fuel oil supply system turbine pump noise.
Background technique
Reduce the method for fuel oil supply system turbine pump noise, comprise pump case (1), pump chamber (2) is provided with in described pump case (1), described pump case (1) is provided with the oil inlet passage (3) communicated with pump chamber (2), in pump chamber (2), be rotatablely equipped with turbine.At present, the inwall of oil inlet passage is tiltedly to be faced directly, and oil inlet passage is straight passage.As Figure 1-3.Fuel oil imports in pump chamber through filler opening, and then goes out from the oil outlet of pump case.The noise that worm gear produces also just and then directly is diffused into outside from oil inlet passage, causes the sound pressure level of whole turbine pump core 30-50 order and frequency multiplication to raise, and noise is large, and spectrum measurement is shown in Fig. 4.In order to improve the comfort of turbine pump, how to reduce turbine pump noise and becoming technician's problem in urgent need to solve.
Summary of the invention
For existing problem, the object of the present invention is to provide a kind of automotive fuel oil system turbine pump reducing noise.
To achieve these goals, technological scheme of the present invention is: a kind of method reducing fuel oil supply system turbine pump noise, is characterized in that: by being bent by the oil inlet passage communicated with pump chamber or/and the method arranging baffle plate in oil inlet passage suppresses noise to pump case external diffusion.
Oil inlet passage is bent or baffle plate is set, do not affect the importing of fuel oil, but, the noise that worm gear in pump chamber produces then receives in bending place and stops or be subject to stop under acting in conjunction at bending place and baffle plate and cannot be diffused into outside pump case, effectively can be reduced the impact of 30-50 order and frequency multiplication noise by the method, spectrogram is shown in Fig. 9.
In such scheme, fuel pump comprises described pump case, pump chamber is provided with in described pump case, described pump case is provided with the oil inlet passage communicated with pump chamber, described oil inlet passage bends near the position of pump chamber, the bending angle of described kink is less than 90 °, and the inwall near the oil inlet passage of kink end is provided with baffle plate, and described baffle plate is positioned on the inwall of the oil inlet passage of the side away from kink overbending direction.Fuel oil imports in pump chamber by such oil inlet passage, and the sound that the worm gear in pump chamber produces, in external diffusion, is subject to the stop of the inwall at baffle plate and oil inlet passage kink place, noise cannot be spread in pump chamber.
In such scheme: the diameter of described oil inlet passage reduces from the one end away from pump chamber gradually to kink.Be conducive to fuel oil like this to accelerate through.
In such scheme: the inwall of described oil inlet passage is the arc inner wall of rounding off.Be conducive to the importing of fuel oil.
In such scheme: the length of described baffle plate is greater than 1/2nd of the width of this place's oil inlet passage.So more be conducive to blocking noise to external diffusion.
The invention has the beneficial effects as follows: the inventive method is simple, few to the improvement of structure, easy to use, do not affect the oil-feed of turbine pump, can effectively reduce the 30-50 order that worm gear sends and frequency multiplication noise to pump case external diffusion, reduce automotive fuel oil system turbine pump noise, improve vehicle ride comfort.
Accompanying drawing illustrates:
Fig. 1 is the structural representation before improving.
Fig. 2 is the C-C sectional view of Fig. 1.
Fig. 3 is the D-D sectional view of Fig. 1.
Fig. 4 is the spectrum measurement figure before improving.
Fig. 5 is the structural representation of turbine pump of the present invention.
Fig. 6 is the plan view of turbine pump oil-feed end cap of the present invention.
Fig. 7 is the A-A sectional view of Fig. 6 oil inlet passage.
Fig. 8 is the B-B sectional view of the oil inlet passage of Fig. 6.
Fig. 9 is the spectrum measurement figure after improving.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described:
Of the present inventionly wait the relative position of the noun of locality only in representative graph all around, do not represent the absolute position of product.
Embodiment 1
As shown in figures 5-9: turbine pump of the present invention is made up of parts such as pump case 1, pump chamber 2, oil inlet passage 3, baffle plate 4, worm gear 5, oil discharge passages 6.
As shown in Figure 5, pump case 1 is combined with the oil-feed end cap being positioned at right side by the fuel-displaced end cap being positioned at left side.Be provided with pump chamber 2 in pump case 1, in pump chamber 2, be rotatablely equipped with turbine 5.Be provided with the oil inlet passage 3 communicated with pump chamber 2 in the oil inlet end portion of covering, be provided with the oil discharge passage 6 communicated with pump chamber 2 in fuel-displaced end cap bottom, this is prior art, does not repeat at this.The diameter of oil inlet passage 3 reduces from the one end away from pump chamber 2 gradually to kink.The inwall of oil inlet passage 3 is the arc inner wall of rounding off.
Oil inlet passage 3 bends near the position of pump chamber 2, the bending angle of kink is less than 90 °, as shown in Figure 5, oil inlet passage 3 first upwards bends near the part of pump chamber 2, and then horizontal transition is connected with pump chamber 2, inwall near the oil inlet passage 3 of kink end is provided with baffle plate 4, and baffle plate 4 is positioned on the inwall away from the oil inlet passage 3 of the side of kink overbending direction, has distance between the inwall of the close overbending direction of baffle plate 4 and oil inlet passage 3.As shown in Figure 5, the downside sidewall of oil inlet passage 3 is provided with baffle plate 4, the length of baffle plate 4 is greater than the half of the width of this place's oil inlet passage 3, if oil inlet passage 3 is circular channel, then the length of baffle plate 4 is greater than the radius of this place's oil inlet passage 3.
Like this, fuel oil enters pump chamber 2 by oil inlet passage 3, and the noise that worm gear 5 produces is blocked by the inwall of the oil inlet passage 3 of baffle plate 4 and kink, noise cannot be spread out, effectively can reduce 30-50 order and frequency multiplication noise thereof.
Can also adopt and only oil inlet passage 3 be bent, as oil inlet passage is designed to L shape, or oil inlet passage 3 be carried out twice and above right-angled bend bending.Also baffle plate can be set in the upside of oil inlet passage 3 madial wall or interval, downside, form the baffling passage of fuel oil, so also can play the effect effectively reducing 30-50 order and frequency multiplication noise thereof.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (5)
1. reduce a method for fuel oil supply system turbine pump noise, it is characterized in that: by the oil inlet passage (3) communicated with pump chamber (2) being bent or/and the method arranging baffle plate (4) in oil inlet passage (3) suppresses noise to pump case (1) external diffusion.
2. reduce the method for oil supply system turbine pump noise according to claim 1, it is characterized in that: fuel pump comprises described pump case (1), pump chamber (2) is provided with in described pump case (1), described pump case (1) is provided with the oil inlet passage (3) communicated with pump chamber (2), described oil inlet passage (3) bends near the position of pump chamber (2), the bending angle of described kink is less than 90 °, inwall near the oil inlet passage (3) of kink end is provided with baffle plate (4), described baffle plate (4) is positioned on the inwall of oil inlet passage (3) of the side away from kink overbending direction.
3. reduce the method for fuel oil supply system turbine pump noise according to claim 2, it is characterized in that: the diameter of described oil inlet passage (3) reduces to kink gradually from the one end away from pump chamber (2).
4. according to Claims 2 or 3, reduce the method for fuel oil supply system turbine pump noise, it is characterized in that: the inwall of described oil inlet passage (3) is the arc inner wall of rounding off.
5. reduce the method for fuel oil supply system turbine pump noise according to claim 4, it is characterized in that: the length of described baffle plate (4) is greater than 1/2nd of the width of this place's oil inlet passage (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133854.1A CN104847706A (en) | 2015-03-25 | 2015-03-25 | Method for reducing noise of turbine pump of fuel oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133854.1A CN104847706A (en) | 2015-03-25 | 2015-03-25 | Method for reducing noise of turbine pump of fuel oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104847706A true CN104847706A (en) | 2015-08-19 |
Family
ID=53847597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510133854.1A Pending CN104847706A (en) | 2015-03-25 | 2015-03-25 | Method for reducing noise of turbine pump of fuel oil supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847706A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126387A (en) * | 1996-08-26 | 2000-10-03 | Aisan Kogyo Kabushiki Kaisha | Fuel pump having low operating noise |
| US20040208763A1 (en) * | 2003-04-21 | 2004-10-21 | Visteon Global Technologies, Inc. | Regenerative ring impeller pump |
| JP2006291802A (en) * | 2005-04-08 | 2006-10-26 | Aisan Ind Co Ltd | Fuel pump |
| CN203362363U (en) * | 2013-07-26 | 2013-12-25 | 浙江恒兴汽车零部件有限公司 | Anti-rotation check valve electronic injection fuel pump |
-
2015
- 2015-03-25 CN CN201510133854.1A patent/CN104847706A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126387A (en) * | 1996-08-26 | 2000-10-03 | Aisan Kogyo Kabushiki Kaisha | Fuel pump having low operating noise |
| US20040208763A1 (en) * | 2003-04-21 | 2004-10-21 | Visteon Global Technologies, Inc. | Regenerative ring impeller pump |
| JP2006291802A (en) * | 2005-04-08 | 2006-10-26 | Aisan Ind Co Ltd | Fuel pump |
| CN203362363U (en) * | 2013-07-26 | 2013-12-25 | 浙江恒兴汽车零部件有限公司 | Anti-rotation check valve electronic injection fuel pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |
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| RJ01 | Rejection of invention patent application after publication |