CN209115239U - A kind of fuel injection pump tester detection system - Google Patents
A kind of fuel injection pump tester detection system Download PDFInfo
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- CN209115239U CN209115239U CN201821823330.0U CN201821823330U CN209115239U CN 209115239 U CN209115239 U CN 209115239U CN 201821823330 U CN201821823330 U CN 201821823330U CN 209115239 U CN209115239 U CN 209115239U
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- injection pump
- injection
- fuel injector
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Abstract
The utility model belongs to technical field of engines, proposes a kind of fuel injection pump tester detection system.A kind of fuel injection pump tester detection system proposed has the motor to drive injection pump；Fluted disc is provided between motor and injection pump；Speed probe is arranged in the outside of fluted disc；Corresponding injection pump is provided with fuel oil supply system；Fuel oil supply system is injection pump oil inside offering by fuel oil box；Multiple oil outlets at the top of corresponding injection pump are respectively arranged with fuel injector；The fuel feed hole of fuel injector is connected to by high-pressure oil pipe with oil outlet how corresponding at the top of injection pump, and the vibration acceleration sensor on high-pressure oil pipe；The oil outlet of fuel injector is connected with corresponding single-time injection instrument；The oil return hole of the fuel injector is connected with fuel oil box；The corresponding injection pump is additionally provided with displacement sensor.The accurate dynamic that the utility model realizes engine real vehicle state injection advance angle measures, and realizes the measurement under engine fuel oil system not disintegration state.
Description
Technical field
The utility model belongs to technical field of engines, and in particular to a kind of fuel injection pump tester detection system.
Background technique
Engine injection advance angle just refer to fuel injector open and into cylinder oil injection time correspond to top land away from it is upper stop
The corresponding crank angle of point.Injection advance angle is too small, and it is serious to will cause engine after-burning, and fuel consumption rate is high, delivery temperature
The symptoms such as height and over-emitting black exhaust.Injection advance angle is excessive, and it is rough to will cause engine operation, galloping, and mechanical load increases
Greatly or even the problems such as scuffing of cylinder bore；Injection advance angle if it does not meet the requirements, will influence the dynamic property and economy of diesel engine.
Fuel supply advance angle just refers to that injection pump plunger closes oil inlet and oil return hole, at the time of to high-pressure oil pipe and fuel injector fuel feeding pair
Answer top land away from crank angle corresponding to top dead centre；For same oil pump injection tubing device system, fuel supply advance angle and spray
The time interval of advance angle oil can be considered steady state value, can detect indirectly injection advance angle by the detection of fuel supply advance angle；Mesh
Before, the detection for engine oil advance angle can be divided into static detection and two kinds of dynamic detection；Wherein, static detection is general
It is to be measured by oil dripping method and pre- lift method to the fuel supply advance angle of oil pump；Dynamic detection mainly has two major classes, respectively
The detection of tandem charge oil pressure sensor and the detection of clipping charge oil pressure sensor.
Static detection fuel supply advance angle method can only measure fuel supply advance angle under engine static state, cannot reflect hair
Fuel supply advance angle and injection advance angle when motivation actual motion；And in the method for dynamic detection fuel supply advance angle, tandem supplies
Oil pressure sensor detecting method needs to disconnect high-pressure oil pipe, installs pressure sensor, cannot achieve puzzled bulk measurement, and
Concatenation pressure sensor will affect the characteristic of former high-pressure oil passage, can have an impact to fuel injection characteristic；Clipping charge oil pressure sensing
Device can realize puzzled bulk measurement, but requirement of this method for sensor and installation is very high, be not suitable for engine measuring on-board.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to propose a kind of fuel injection pump tester detection system.
The utility model is to complete above-mentioned purpose to adopt the following technical scheme that
A kind of fuel injection pump tester detection system, fuel injection pump tester detection system have the electricity to drive injection pump
Machine；Fluted disc is provided between the motor and the injection pump；And speed probe is set in the outside of the fluted disc；It is corresponding
The injection pump is provided with fuel oil supply system；The fuel oil supply system is inside the injection pump by fuel oil box
Fuel feeding；Multiple oil inlets at the top of corresponding injection pump are respectively arranged with fuel injector；The oil outlet of the fuel injector passes through high pressure oil
Pipe is connected to oil inlet how corresponding at the top of injection pump, and the vibration acceleration sensor on the high-pressure oil pipe；The spray
The fuel feed hole of oily device is connected with corresponding single-time injection instrument, is surveyed using fuel injection characteristic of the single-time injection instrument to fuel injector
Amount；The oil return hole of the fuel injector is connected with fuel oil box；The corresponding injection pump is additionally provided with to the tooth to injection pump
The displacement sensor that position is adjusted and records.
The fuel oil supply system further includes having the oil inlet pipe and oil return pipe connecting with injection pump, the oil inlet pipe and oil return
Pipe is connected to fuel oil box, and transfer pump for fuel, filter and pressure regulator valve are connected on the oil inlet pipe.
The utility model proposes a kind of fuel injection pump tester detection system, using single-time injection instrument to the rule of fuel injector
It is detected, is detected using vibration signal of the vibration acceleration sensor to high-pressure oil pipe, realize engine real vehicle shape
The accurate dynamic of state injection advance angle measures, and realizes the measurement under engine fuel oil system not disintegration state.
Detailed description of the invention
Fig. 1 is Fuel Injection Pump Test-Bed detecting system schematic diagram.
In figure: 1, motor, 2, injection pump, 3, fuel oil supply system, 4, high-pressure oil pipe, 5, fuel injector, 6, oil return of oil injector
Pipe, 7, fuel oil box, 8, single-time injection instrument, 9, vibrating sensor tooling, 10, vibration acceleration sensor, 11, fluted disc, 12, turn
Fast sensor, 13, speed probe tooling, 14, oil inlet pipe, 15, oil return pipe, 16, transfer pump for fuel, 17, filter, 18, tune
Pressure valve, 19, displacement sensor.
Specific embodiment
Utility model is illustrated with reference to the drawings and specific embodiments:
As shown in Figure 1, a kind of fuel injection pump tester detection system, the fuel injection pump tester has to drive oil spout
The motor 1 of pump 2；Fluted disc 11 is provided between the motor 1 and the injection pump 2；And it is arranged in the outside of the fluted disc 11
Speed probe 12；The corresponding injection pump 2 is provided with fuel oil supply system 3；The fuel oil supply system 3 passes through fuel oil oil
Case 7 is 2 oil inside offering of injection pump；Multiple oil outlets at corresponding 2 top of injection pump are respectively arranged with fuel injector 5；It is described
Fuel oil supply system 3 further includes having the oil inlet pipe 14 and oil return pipe 15 connecting with injection pump, the oil inlet pipe 14 and oil return pipe 15
It is connected to fuel oil box 7, transfer pump for fuel 16, filter 17 and pressure regulator valve 18 is connected on the oil inlet pipe；The fuel injector 5
Fuel feed hole is connected to by high-pressure oil pipe 4 with oil outlet how corresponding at the top of injection pump, and vibration is arranged on the high-pressure oil pipe 4
Dynamic acceleration transducer 10；Vibration acceleration sensor 10 is by the installation 9 of vibrating sensor tooling on high-pressure oil pipe 4；It is described
The oil outlet of fuel injector 5 is connected with corresponding single-time injection instrument 8, using single-time injection instrument 8 to the fuel injection characteristic of fuel injector into
Row measurement；The oil return hole of the fuel injector 5 is connected with fuel oil box 7；The corresponding injection pump 5 is additionally provided with to oil spout
The rack displacement control unit 19 that the rack position of pump is adjusted and records；
In use, being measured using speed probe to pump speed and phase, using single-time injection instrument 8 to corresponding
The fuel injection characteristic of fuel injector 5 measures, and is measured using vibration acceleration sensor 10 to the vibration of high-pressure oil pipe 4, then
Oil pump phase, fuel injection characteristic and high-pressure oil pipe vibration signal under injection pump different rotating speeds difference rack stroke is synchronized
Acquisition handle and believe processed vibration using the fuel injection characteristic that single-time injection instrument 8 measures to high-pressure oil pipe vibration signal
It number is demarcated, to obtain the corresponding relationship for the injection advance angle that high-pressure oil pipe vibration signal and single-time injection instrument measure.
Corner marking instrument, magnetoelectric transducer, Hall sensor or photoelectric sensor etc. can be used in the speed probe, described
Inductance sensor, current vortex sensor or Hall sensor etc. can be used in displacement sensor sensor, described to high-pressure oil pipe
Vibration measurement can measure any high-pressure oil pipe and also be measured simultaneously whole high-pressure oil pipes.
Claims (1)
1. a kind of fuel injection pump tester detection system, it is characterised in that: fuel injection pump tester detection system has to drive spray
The motor of oil pump；Fluted disc is provided between the motor and the injection pump；And it is passed in the outside of fluted disc setting revolving speed
Sensor；The corresponding injection pump is provided with fuel oil supply system；The fuel oil supply system is described by fuel oil box
Injection pump oil inside offering；Multiple oil outlets at the top of corresponding injection pump are respectively arranged with fuel injector；The fuel feed hole of the fuel injector
It is connected to by high-pressure oil pipe with oil outlet how corresponding at the top of injection pump, and vibration acceleration senses on the high-pressure oil pipe
Device；The oil outlet of the fuel injector is connected with corresponding single-time injection instrument, is advised using single-time injection instrument to the oil spout of fuel injector
Rule measures；The oil return hole of the fuel injector is connected with fuel oil box；The corresponding injection pump is additionally provided with to spray
The displacement sensor that the rack position of oil pump is adjusted and records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821823330.0U CN209115239U (en) | 2018-11-07 | 2018-11-07 | A kind of fuel injection pump tester detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821823330.0U CN209115239U (en) | 2018-11-07 | 2018-11-07 | A kind of fuel injection pump tester detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115239U true CN209115239U (en) | 2019-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821823330.0U Active CN209115239U (en) | 2018-11-07 | 2018-11-07 | A kind of fuel injection pump tester detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209115239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284666A (en) * | 2020-10-13 | 2021-01-29 | 上海弗列加滤清器有限公司 | Fuel filter vibration test tool and fuel filter vibration test method |
-
2018
- 2018-11-07 CN CN201821823330.0U patent/CN209115239U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284666A (en) * | 2020-10-13 | 2021-01-29 | 上海弗列加滤清器有限公司 | Fuel filter vibration test tool and fuel filter vibration test method |
| CN112284666B (en) * | 2020-10-13 | 2023-09-12 | 上海弗列加滤清器有限公司 | Fuel filter vibration test tool and fuel filter vibration test method |
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