CN100516520C - Method and equipment for testing performance of feeding oil of fuel pump in car - Google Patents
Method and equipment for testing performance of feeding oil of fuel pump in car Download PDFInfo
- Publication number
- CN100516520C CN100516520C CNB2005100186571A CN200510018657A CN100516520C CN 100516520 C CN100516520 C CN 100516520C CN B2005100186571 A CNB2005100186571 A CN B2005100186571A CN 200510018657 A CN200510018657 A CN 200510018657A CN 100516520 C CN100516520 C CN 100516520C
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- fuel pump
- egr
- gas circuit
- back pressure
- pressure transducer
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- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a method and the equipment of testing the oil transferring performance of the vehicle fuel pump. The method comprises: test the vacuum degree of the oil inlet of the fuel pump as the startup of the pump. The equipment includes the negative pressure sensor (1), and one interface of the sensor (1) is set with the gas circuit connective devices to the oil inlet (301); the outlet end of the sensor (1) connects the computer. The invention has high efficiency of testing, the precise tested data and is suitable for the product line testing of the vehicle fuel pump.
Description
Technical field
The present invention relates to automobile fuel pump, particularly in the automobile fuel pump production process, be used for the method and apparatus of testing performance of feeding oil of fuel pump in car.
Background technique
Automobile fuel pump is the important composition parts of automobile injection system, and is therefore extremely important to the detection of performance of feeding oil of fuel pump.
At present, the test method of performance of feeding oil of fuel pump in car is mainly adopted the fluid detection method, its concrete testing procedure is as follows: 1, the filler opening with fuel pump is communicated with fuel tank; 2, start the motor of fuel pump, fuel oil enters fuel pump through oil purifier in fuel tank under the effect of negative pressure, and pressure oil flows back to fuel tank through throttle valve, solenoid valve; 3, detect the fuel flow at solenoid valve place by flowmeter, record the output flow of tested fuel pump under assigned voltage, with testing performance of feeding oil of fuel pump in car.
There is following defective in the test method of above-mentioned performance of feeding oil of fuel pump in car: 1, owing to fuel oil needs circulate in whole oil circuit, test process need expend a large amount of time, efficient is low, be used for single fuel pump detection effect well, but be not suitable for the detection on the automobile fuel pump production line; 2, can leave trapped fuel in the oil circuit, this is affected the data of detection; 3, be unfavorable for realizing the automation tested; 4, the price of flow transducer is higher, testing apparatus cost height; 5, in production line, use oil circuit, can affect producers; 5, fuel pump can leave trapped fuel, and polluted product influences the appearance quality of product.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method and apparatus that is used for testing performance of feeding oil of fuel pump in car is provided, and this method and apparatus testing efficiency height, test data is accurate, polluted product not, be suitable for the detection on the automobile fuel pump production line, device structure is simple, and cost is low.
The present invention solves the problems of the technologies described above the technological scheme that is adopted:
A kind of method that is used for testing performance of feeding oil of fuel pump in car, when it is included in the automobile fuel pump electric motor starting, the step of test fuel pump filler opening place degree of vacuum.
In the such scheme, the concrete steps of method are:
(1) interface of the B/P EGR Back Pressure Transducer EGR that output terminal is connected with computer docks with the fuel pump filler opening;
(2) start the fuel pump motor;
Fuel pump filler opening place degree of vacuum when (3) obtaining the fuel pump electric motor starting by B/P EGR Back Pressure Transducer EGR.
A kind of equipment that is used for testing performance of feeding oil of fuel pump in car, it comprises B/P EGR Back Pressure Transducer EGR, an interface of B/P EGR Back Pressure Transducer EGR is provided with the gas circuit link that docks with the fuel pump filler opening; The output terminal of B/P EGR Back Pressure Transducer EGR is connected with computer.
In the such scheme, the gas circuit link is the gas circuit contiguous block, and B/P EGR Back Pressure Transducer EGR is fixed on the gas circuit contiguous block; Have in the gas circuit contiguous block two respectively with two passages that interface docks of B/P EGR Back Pressure Transducer EGR, wherein a passage is communicated with atmosphere, another passage is used for docking with the fuel pump filler opening.
In the such scheme, equipment also comprises worktable; The track that worktable is provided with the fuel pump anchor clamps, be used to guide the gas circuit contiguous block to dock with the fuel pump filler opening, be used to promote the driving mechanism that the gas circuit contiguous block orbits, the power plug of fuel pump.
In the such scheme, the fuel pump anchor clamps comprise the base for supporting that is fixed on the worktable, top briquetting, be used to drive briquetting driving mechanism, be used to support the support of driving mechanism; Support is fixed on the worktable.
In the such scheme, also be provided with the guide type shoe that is used to guide power plug to dock on the worktable, be used to promote the driving mechanism that power plug moves on guide type shoe with the fuel pump power socket; Guide type shoe is fixed on the worktable.
The inventive method and equipment replace existing fluid flow test with the degree of vacuum test of fuel pump filler opening place, with B/P EGR Back Pressure Transducer EGR performance of feeding oil of fuel pump being carried out no liquid detects, the testing efficiency height, test data is accurate, polluted product not, device structure is simple, the automaticity height, cost is low, is suitable for the detection on the automobile fuel pump production line.
Description of drawings
Fig. 1 is present device embodiment 1 a structure sectional view
Fig. 2 is present device embodiment 2 a structural representation
Fig. 3 is the computer system block diagram supporting with present device embodiment 2
Embodiment
The present invention is used for the method for testing performance of feeding oil of fuel pump in car, when being included in the automobile fuel pump electric motor starting, and the step of test fuel pump filler opening place degree of vacuum, its concrete steps are:
(1) interface of the B/P EGR Back Pressure Transducer EGR that output terminal is connected with computer docks with the fuel pump filler opening;
(2) start the fuel pump motor;
Fuel pump filler opening place degree of vacuum when (3) obtaining the fuel pump electric motor starting by B/P EGR Back Pressure Transducer EGR.
The present invention is used for the apparatus embodiments 1 of testing performance of feeding oil of fuel pump in car as shown in Figure 1, and it comprises B/P EGR Back Pressure Transducer EGR 1, and an interface of B/P EGR Back Pressure Transducer EGR 1 is provided with the gas circuit link that docks with fuel pump filler opening 301.The output terminal of B/P EGR Back Pressure Transducer EGR 1 is connected with computer by A/D converter.The gas circuit link is a gas circuit contiguous block 2, and B/P EGR Back Pressure Transducer EGR 1 is fixed on the gas circuit contiguous block 2; Have two passages 201,202 that dock with two interfaces of B/P EGR Back Pressure Transducer EGR respectively in the gas circuit contiguous block 2, wherein a passage 201 is communicated with atmosphere, and another passage 202 is used for docking with fuel pump filler opening 301.
Present device embodiment 1 using method is:
(1) interface 202 with gas circuit contiguous block 2 docks (as Fig. 1) with fuel pump filler opening 301;
(2) motor of startup fuel pump 3;
The degree of vacuum at fuel pump filler opening 301 places when (3) obtaining fuel pump 3 electric motor startings by B/P EGR Back Pressure Transducer EGR 1.
The present invention is used for the apparatus embodiments 2 of testing performance of feeding oil of fuel pump in car as shown in Figure 2, and it comprises B/P EGR Back Pressure Transducer EGR 1, gas circuit contiguous block 2.B/P EGR Back Pressure Transducer EGR 1 is fixed on the gas circuit contiguous block 2.
Equipment also comprises worktable 12; The track 5 that worktable 12 is provided with fuel pump 3 anchor clamps, be used to guide gas circuit contiguous block 2 to dock with fuel pump filler opening 301, be used to promote the driving mechanism 4 that gas circuit contiguous block 2 moves on track 5.The fuel pump anchor clamps comprise the base for supporting 6 that is fixed on the worktable 12, top briquetting 7, be used to drive briquetting 7 driving mechanism 8, be used to support the support 9 of driving mechanism 8; Support 9 is fixed on the worktable 12.
Also be provided with on the worktable 12 fuel pump 3 power plug 13, the guide type shoe 14 that is used to guide power plug 13 to dock with fuel pump power socket 302, be used to promote the driving mechanism 10 that power plug 13 moves on guide type shoe 14; Guide type shoe 14 is fixed on the worktable 12.
Above-mentioned driving mechanism is the cylinder driving mechanism.
During present device embodiment's 2 tests, operator are except being placed on base for supporting 6 to fuel pump 3 when test begins, and behind EOT, take out outside the fuel pump 3, other test process is all by carrying out automatically with the computer system control of coordinative composition of equipments; With the computer system of coordinative composition of equipments as shown in Figure 3.
During test, power supply is generally 8.5V and 12V, and wherein 12V is the operating voltage of oil pump, so test is mainly carried out under 12V.The selection of supply voltage also can be by computer control.
During the embodiment of the invention 2 tests, manually fuel pump 3 being placed on the base for supporting 6 (when testing for the first time, needs calibration to lead the axial position of fuel pump filler opening 301); Press test beginning switch, computer control driving mechanism 8 propelling briquettings 7 compress the fuel pump 3 on the base for supporting 6, to prevent fuel pump 3 deflections; Driving mechanism 10 inserts fuel pump socket 302 with power plug 13; Driving mechanism 4 promotes gas circuit contiguous block 2, and the passage 202 on the gas circuit contiguous block 2 is docked with fuel pump filler opening 301; At this moment, fuel pump filler opening 301 and B/P EGR Back Pressure Transducer EGR 1, gas circuit contiguous block passage 202 communicate and keep sealing.Computer control fuel pump power switch is opened, the electrical power running of fuel pump 3, and B/P EGR Back Pressure Transducer EGR tests out the force value in the gas circuit and converts the analogue signal that test obtains to digital signal by A/D and is transported in the computer.Computer is by judging whether this digital signal meets the requirements, and whether just can judge fuel pump qualified.Then, computer control fuel pump power switch is closed, and each driving mechanism return is controlled in the stall of fuel pump motor, and this fuel pump EOT manually takes out fuel pump 3, puts into next fuel pump to be measured.
Claims (6)
1, a kind of method that is used for testing performance of feeding oil of fuel pump in car is characterized in that: when it is included in the automobile fuel pump electric motor starting, and the step of test fuel pump filler opening place degree of vacuum; Its concrete steps are:
(1) interface of the B/P EGR Back Pressure Transducer EGR that output terminal is connected with computer docks with the fuel pump filler opening;
(2) start the fuel pump motor;
Fuel pump filler opening place degree of vacuum when (3) obtaining the fuel pump electric motor starting by B/P EGR Back Pressure Transducer EGR.
2, a kind of equipment of the method for testing performance of feeding oil of fuel pump in car according to claim 1 that is used for, it is characterized in that: it comprises B/P EGR Back Pressure Transducer EGR (1), and an interface of B/P EGR Back Pressure Transducer EGR (1) is provided with the gas circuit link that docks with fuel pump filler opening (301); The output terminal of B/P EGR Back Pressure Transducer EGR (1) is connected with computer.
3, equipment as claimed in claim 2 is characterized in that: the gas circuit link is gas circuit contiguous block (2), and B/P EGR Back Pressure Transducer EGR (1) is fixed on the gas circuit contiguous block (2); Have two passages (201,202) that dock with two interfaces of B/P EGR Back Pressure Transducer EGR respectively in the gas circuit contiguous block (2), wherein a passage (201) is communicated with atmosphere, and another passage (202) is used for docking with fuel pump filler opening (301).
4, equipment as claimed in claim 3 is characterized in that: equipment also comprises worktable (12); Worktable (12) is provided with fuel pump (3) anchor clamps, is used to the track (5) that guides gas circuit contiguous block (2) to dock with fuel pump filler opening (301), the driving mechanism (4) that is used to promote gas circuit contiguous block (2) operation on track (5), the power plug (13) of fuel pump (3).
5, equipment as claimed in claim 4 is characterized in that: the fuel pump anchor clamps comprise the base for supporting (6) that is fixed on the worktable (12), top briquetting (7), be used to drive briquetting (7) driving mechanism (8), be used to support the support (9) of driving mechanism (8); Support (9) is fixed on the worktable (12).
6, equipment as claimed in claim 4 is characterized in that: also be provided with the guide type shoe (14) that is used to guide power plug (13) to dock with fuel pump power socket (302) on the worktable (12), be used to promote power plug (13) is gone up operation at guide type shoe (14) driving mechanism (10); Guide type shoe (14) is fixed on the worktable (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100186571A CN100516520C (en) | 2005-04-30 | 2005-04-30 | Method and equipment for testing performance of feeding oil of fuel pump in car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100186571A CN100516520C (en) | 2005-04-30 | 2005-04-30 | Method and equipment for testing performance of feeding oil of fuel pump in car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687594A CN1687594A (en) | 2005-10-26 |
| CN100516520C true CN100516520C (en) | 2009-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100186571A Expired - Fee Related CN100516520C (en) | 2005-04-30 | 2005-04-30 | Method and equipment for testing performance of feeding oil of fuel pump in car |
Country Status (1)
| Country | Link |
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| CN (1) | CN100516520C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509482B (en) * | 2009-03-23 | 2011-08-31 | 联合汽车电子有限公司 | Oil pump hot oil test desk and its use method |
| CN102788007B (en) * | 2012-08-16 | 2014-10-15 | 富奥汽车零部件股份有限公司 | Dry flow test method and test device |
| CN106404362A (en) * | 2016-08-09 | 2017-02-15 | 中国人民解放军第五七二工厂 | Aircraft aerial oil receiving plug detection device |
| CN110657089A (en) * | 2019-08-15 | 2020-01-07 | 盐城博尔福机电科技发展有限公司 | Diaphragm pump detection device and detection method thereof |
| CN112696300B (en) * | 2020-12-11 | 2021-11-09 | 安徽宝隽机车部件有限公司 | Negative pressure-based electric injection fuel pump detection system |
| CN113685342A (en) * | 2021-08-18 | 2021-11-23 | 连云港市昌明电子科技有限公司 | Performance detection simulation platform for ABS (anti-lock braking system) auxiliary system |
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2005
- 2005-04-30 CN CNB2005100186571A patent/CN100516520C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1687594A (en) | 2005-10-26 |
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Granted publication date: 20090722 Termination date: 20120430 |