CN100427913C - Equipment for testing valve performance of oil fuel pump - Google Patents
Equipment for testing valve performance of oil fuel pump Download PDFInfo
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- CN100427913C CN100427913C CNB200510018668XA CN200510018668A CN100427913C CN 100427913 C CN100427913 C CN 100427913C CN B200510018668X A CNB200510018668X A CN B200510018668XA CN 200510018668 A CN200510018668 A CN 200510018668A CN 100427913 C CN100427913 C CN 100427913C
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- oil
- fuel pump
- pressure
- inlet end
- oil inlet
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Abstract
The present invention relates to a device for testing the valve performance of a fuel oil pump. The device comprises a pipe line part, a pressure sensor (5) for testing the pressure of the oil inlet end of an oil outlet (12) of the fuel oil pump and an electromagnetic valve (1) arranged on an oil outlet pipe of a back valve on the oil inlet end of an oil outlet (12) of the fuel oil pump, wherein the pipe line part comprises a pressure air source for communicating with the oil inlet end of an oil outlet (12) of the fuel oil pump and a negative pressure generator for communicating with the oil inlet end of an oil outlet (12) of the fuel oil pump, and an electromagnetic valve (2) is arranged between the oil inlet end of the oil outlet (12) of the fuel oil pump and the pressure air source. An electromagnetic valve (3) is arranged between the oil inlet end of an oil outlet (12) of the fuel oil pump and the negative pressure generator, and the output end of the pressure sensor (5) is connected with a computer. The test device of the present invention provides positive pressure gas for the oil outlet through the pressure air source, makes the oil outlet generate negative pressure by using the negative pressure generator to pump vacuum, and tests the parameters of the opening pressure and the sealing performance of an overflow valve and the sealing performance of the back valve through the pressure sensor.
Description
Technical field
The present invention relates to automobile fuel pump, particularly in the fuel pump production run, be used to test the device of fuel pump oil-out valve performance.
Background technology
Automobile fuel pump is the important composition parts of automobile oil supply system, and the fuel pump oil-out is provided with fuel feeding reverse checkvalve and safety overflow valve.The fuel feeding reverse checkvalve its mainly to act on be that restriction fluid can only flow to a direction, can not be to flowing in the other direction.Performance requirement to reverse checkvalve mainly contains: resistance is little when fluid flows by retaining valve, and just the pressure loss is little; And it is fashionable to work as the fluid reverse direction flow, and the sealing of valve port will be got well, and does not have to leak; Vibration, impact and noise do not have during work.Safety overflow valve is by the valve port overflow, and it is stable that the pressure in Be Controlled system or loop is kept, and realizes pressure regulation, voltage stabilizing and pressure limiting, to adapt to various unequally loaded requirements.Performance requirement to surplus valve is: its overflow characteristic, open and shut characteristic and pressure regulation stability will be got well.
In the fuel pump production run,, guarantee the normal operation of equipment, must the performance of fuel pump oil-out valve be detected, whether lost efficacy to judge valve in order to improve reliability of products.
For a long time, the detection of valve performance is used always the classic method in the 60 to 70's---artificial fluid detection method, promptly simulate the fuel pump working condition, in flowline, charge into fluid, the leakage situation that the logical then time is in a few days observed the fuel feeding reverse checkvalve.This detection efficiency is low, error is big, is not suitable on the fuel pump production line fuel pump oil-out valve being tested, and can only makes test to static properties, can not make test to dynamic property.
Summary of the invention
Technical matters to be solved by this invention is: a kind of equipment for testing valve performance of oil fuel pump is provided, this installs detection efficiency height, error is little, can make test to the static state and the dynamic property of fuel pump valve, be adapted on the fuel pump production line fuel pump oil-out valve being tested.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Equipment for testing valve performance of oil fuel pump, it comprises;
Pipeline portions,
Be used to test fuel pump oil-out oil inlet end pressure pressure transducer,
Be used to be arranged on the solenoid valve on the fuel pump oil-out reverse checkvalve flowline;
Pipeline portions comprises:
The pressure gas source that is used for being communicated with fuel pump oil-out oil inlet end,
Be used for the negative pressure generator that is communicated with fuel pump oil-out oil inlet end;
Be provided with solenoid valve between fuel pump oil-out oil inlet end and the pressure gas source, be provided with solenoid valve between fuel pump oil-out oil inlet end and the negative pressure generator; The output terminal of pressure transducer is connected with computing machine.
In the such scheme, proving installation also comprises:
Be used for fixing the fuel pump oil-out worktable,
Be used for docking with fuel pump oil-out oil inlet end connect the air pressure head,
Connect the air pressure head propulsive mechanism,
Be used to support the support of propulsive mechanism;
Connect the air pressure head and be provided with and connect device of air, pipeline portions and pressure transducer are communicated with the tube core that connects the air pressure head (11) by connecing device of air.
In the such scheme, negative pressure generator is the negative pressure generator that pressed gas drives, and its power gas input end is communicated with pressure gas source by solenoid valve.
In the such scheme, propulsive mechanism is the cylinder propulsive mechanism.
In the such scheme, propulsive mechanism is by computer control.
Proving installation of the present invention changes artificial fluid detection method, provide barotropic gas by pressure gas source to oil-out, vacuumize by negative pressure generator and to make oil-out produce negative pressure, and the parameters such as sealing property of opening pressure, sealing property and reverse checkvalve by pressure transducer test surplus valve.
The present invention compared with prior art has the following advantages:
1, this device detection efficiency height, pressure transducer precision height, error are little, are adapted on the fuel pump production line fuel pump oil-out valve being tested;
2, do not use fluid, can not pollute test block;
3, connect the air pressure head and advance, can realize the testing process mechanized operation by propulsive mechanism;
4, propulsive mechanism is realized the robotization of testing process by computer control.
Description of drawings
Fig. 1 is the structured flowchart of proving installation embodiment 1 air path part of the present invention
The block diagram that Fig. 2 is connected with computing machine for proving installation embodiment 1 of the present invention
Fig. 3 is the structural representation of proving installation embodiment 1 worktable part of the present invention
Fig. 4 is the structural representation that connects device of air
Fig. 5 is the structural representation of briquetting
Fig. 6 is the axial cut-open view of the joint that docks with the reverse checkvalve flowline
Fig. 7 is fuel pump fuel feeding reverse checkvalve and the desired pressure curve map of safety overflow valve when test
Fig. 8 is the structured flowchart of proving installation embodiment 2 air path part of the present invention
Embodiment
Proving installation embodiment 1 of the present invention as shown in Figure 1, it comprises: pipeline portions, be used to test fuel pump oil-out 12 oil inlet end pressure pressure transducer 5, be used to be arranged on the solenoid valve 1 on the fuel pump oil-out 12 reverse checkvalve flowlines; Pipeline portions comprises: the pressure gas source that is used for being communicated with fuel pump oil-out 12 oil inlet ends, be used for the negative pressure generator that is communicated with fuel pump oil-out 12 oil inlet ends; Be provided with solenoid valve 2 between fuel pump oil-out 12 oil inlet ends and the pressure gas source, be provided with solenoid valve 3 between fuel pump oil-out 12 oil inlet ends and the negative pressure generator.Negative pressure generator is the negative pressure generator that pressed gas drives, and its power gas input end is communicated with pressure gas source by solenoid valve 4.
As shown in Figure 2, the output terminal of pressure transducer 5 is connected with computing machine, and solenoid valve is by computer control.
As shown in Figure 3, proving installation also comprises: be used for fixing fuel pump oil-out 12 worktable 6, be used for docking with fuel pump oil-out 12 oil inlet ends connect air pressure head 7, connect air pressure head propulsive mechanism 8, be used to support the support 9 of propulsive mechanism.Propulsive mechanism 8 is the cylinder propulsive mechanism, and as shown in Figure 2, propulsive mechanism 8 is by computer control.Connect air pressure head 7 and be provided with and connect device of air 10, as shown in Figure 4, pressure transducer 5 is communicated with the tube core 11 that connects the air pressure head by connecing device of air 10.Pipeline portions by joint 13, connect device of air 10 and be communicated with the tube core 11 that connects the air pressure head.Connect and also be provided with gauge tap 14 on the device of air 10, with the stroke of control cylinder, when cylinder was gone to the desired position, gauge tap 14 was sent signal, the stop motion of computer control cylinder to computing machine.
Shown in Fig. 3,5, worktable 6 is provided with briquetting 15, has hole 1502 that is used for fixing the fuel pump oil-out and the hole 1501 that is used to install reverse checkvalve flowline open joint 16 (as shown in Figure 6) on the briquetting 15.Acting as of hole 1502 on the briquetting 15 and open joint 16: spacing to fuel pump oil-out 12, promptly fuel pump oil-out 12 passes through on briquetting 15 stationary work-tables 6, and guarantees the sealing of fuel pump oil-out 12 oil inlet ends.
Proving installation embodiment 1 concrete operations flow process of the present invention is:
Operating personnel are falling the fuel pump oil-out to be placed on the worktable 6 and (when using for the first time this device, manually to adjust earlier briquetting 15, guarantee sealing).Have good positioning behind the fuel pump oil-out, give signal of computing machine, the cylinder propulsive mechanism presses down, and connects air pressure head 7 good seal oil-out oil inlet ends.Computer control solenoid valve 1,3,4 cuts out, solenoid valve 2 is open-minded, and pressure gas source is to oil-out oil inlet end pressurization, reach certain pressure after, safety overflow valve is opened; Said process is 1 to 2 on the pressure curve of Fig. 7.At this moment, computer control solenoid valve 2 also cuts out, and carries out pressurize at computing machine in given time, judges the sealing of surplus valve in the pressure maintaining period; This section process is 2 to 3 on the pressure curve of Fig. 7.After pressurize finishes, open release by computer control solenoid valve 1, the fuel feeding reverse checkvalve is opened.This section process is 3 to 4 on the pressure curve of Fig. 7.Above step all is the malleation test section.Next, computer control solenoid valve 1,2 cuts out, solenoid valve 3,4 is open-minded, and pressure gas source drives negative pressure generator work, vacuumizes the sealing that detects the fuel feeding reverse checkvalve; This section process is 4 with the rear section on the pressure curve of Fig. 5.At last, operating personnel's oil-out that will detect unloads from worktable.
Proving installation embodiment 2 of the present invention as shown in Figure 8, negative pressure generator is by computer-controlled vacuum pump.
The invention described above embodiment, the computer operator can be according to the quality inspection situation of real-time demonstration and historical data judgement reverse checkvalve and surplus valve.In the whole process, manual operation is few, and operation is many automatically.The advantage of computer-aided test is its real-time that has powerful data processing function, higher measuring accuracy, can guarantee to measure, prevent personal error, compensation sensor non-linear, automatic control, the strict control test condition of realizing whole test process, improve test efficiency.
Claims (4)
1, equipment for testing valve performance of oil fuel pump is characterized in that: it comprises:
Pipeline portions,
Be used to test fuel pump oil-out (12) oil inlet end pressure pressure transducer (5),
Be used to be arranged on the solenoid valve (1) on fuel pump oil-out (12) the reverse checkvalve flowline;
Pipeline portions comprises:
The pressure gas source that is used for being communicated with fuel pump oil-out (12) oil inlet end,
Be used for the negative pressure generator that is communicated with fuel pump oil-out (12) oil inlet end;
Be provided with solenoid valve (2) between fuel pump oil-out (12) oil inlet end and the pressure gas source, be provided with solenoid valve (3) between fuel pump oil-out (12) oil inlet end and the negative pressure generator; The output terminal of pressure transducer (5) is connected with computing machine,
Proving installation also comprises:
Be used for fixing fuel pump oil-out (12) worktable (6),
Be used for docking with fuel pump oil-out (12) oil inlet end connect air pressure head (7),
Connect the air pressure head propulsive mechanism (8),
Be used to support the support (9) of propulsive mechanism;
Connect air pressure head (7) and be provided with and connect device of air (10), pipeline portions and pressure transducer (5) are communicated with the tube core that connects the air pressure head (11) by connecing device of air (10).
2, proving installation as claimed in claim 1 is characterized in that: negative pressure generator is the negative pressure generator that pressed gas drives, and its power gas input end is communicated with pressure gas source by solenoid valve (4).
3, proving installation as claimed in claim 1 is characterized in that: propulsive mechanism (8) is the cylinder propulsive mechanism.
4, proving installation as claimed in claim 1 is characterized in that: propulsive mechanism (8) is by computer control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510018668XA CN100427913C (en) | 2005-04-30 | 2005-04-30 | Equipment for testing valve performance of oil fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510018668XA CN100427913C (en) | 2005-04-30 | 2005-04-30 | Equipment for testing valve performance of oil fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1687731A CN1687731A (en) | 2005-10-26 |
| CN100427913C true CN100427913C (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510018668XA Expired - Fee Related CN100427913C (en) | 2005-04-30 | 2005-04-30 | Equipment for testing valve performance of oil fuel pump |
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| CN (1) | CN100427913C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103335830A (en) * | 2013-06-24 | 2013-10-02 | 武汉亚普汽车塑料件有限公司 | Automobile fuel tank valve function testing device |
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| CN103335830B (en) * | 2013-06-24 | 2016-01-20 | 东风亚普汽车部件有限公司 | Fuel tank of vehicle valve function proving installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1687731A (en) | 2005-10-26 |
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Granted publication date: 20081022 Termination date: 20110430 |