CN204461497U - Portable PT fuel system tester - Google Patents

Portable PT fuel system tester Download PDF

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Publication number
CN204461497U
CN204461497U CN201420865016.4U CN201420865016U CN204461497U CN 204461497 U CN204461497 U CN 204461497U CN 201420865016 U CN201420865016 U CN 201420865016U CN 204461497 U CN204461497 U CN 204461497U
Authority
CN
China
Prior art keywords
fuel
fuel injector
oil
connects
pump
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.)
Expired - Fee Related
Application number
CN201420865016.4U
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Chinese (zh)
Inventor
牛子孺
邹衍荣
翟泉来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tai'an City Lukehai Electronic Information Industry Co Ltd
Original Assignee
Tai'an City Lukehai Electronic Information Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tai'an City Lukehai Electronic Information Industry Co Ltd filed Critical Tai'an City Lukehai Electronic Information Industry Co Ltd
Priority to CN201420865016.4U priority Critical patent/CN204461497U/en
Application granted granted Critical
Publication of CN204461497U publication Critical patent/CN204461497U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of portable PT fuel system tester, volume be little, lightweight, consume energy low, use car and boat power autonomous, be easy to carry, mobility is good, send fixed point maintenance and can not the shortcoming of inspect and repair as necessary by making up.Reach PT pump, PT fuel injector tester device, measurement result digitizing.Using the scene of engine to use detector by staff to oil pump, fuel injector under the prerequisite do not dismantled, directly carrying out checking, maintaining, adjustment, can reach at ordinary times and make regular check on, maintain as required.

Description

Portable PT fuel system tester
Technical field
The utility model relates to PT fuel system verification field, is specially a kind of portable PT fuel system tester.
Background technology
Diesel engine PT fuel system is primarily of PT fuel pump and PT fuel injector composition, diesel engine fault very easily occurs in it them, and keeped in repair PT pump or inspection fuel injector in the past, all needing to remove mailing carries out Measuring error to manufacturer or to local maintaining unit, and the cycle is long, cost is high, efficiency is low.
Utility model content
The utility model is for above weak point, provide a kind of volume little, lightweight, consume energy low, use car and boat power autonomous, be easy to carry, diesel engine PT fuel system portable detector that mobility is good, fixed point maintenance and can not the shortcoming of inspect and repair as necessary is sent by making up, reach PT pump, PT fuel injector tester device, measurement result digitizing; Using the scene of engine to use detector by staff to oil pump, fuel injector under the prerequisite do not dismantled, directly carrying out checking, maintaining, adjustment, can reach at ordinary times and make regular check on, maintain as required.
The utility model solves the technical scheme that its technical matters adopts: a kind of portable PT fuel system tester, include housing, detecting device for fuel injector and PT fuel pump pick-up unit, described housing upper face is provided with man-machine interface and detecting device for fuel injector, PT fuel pump pick-up unit is installed in housing right back, man-machine interface connects single-chip microcomputer, PT fuel pump pick-up unit includes PT fuel pump and detecting element, PT fuel pump connects servomotor I by shaft coupling, the drain tap of PT fuel pump and oil-in are connected in the fuel tank of enclosure interior, the oil-out Bonding pressure sensor successively of PT fuel pump, flow sensor, then 4 solenoid valves are connected respectively, electromagnetic valve I, electromagnetic valve II, electromagnetic valve II I, flow control valve on electromagnetic valve I V and separately oil circuit, finally connect fuel tank,
Detecting device for fuel injector includes fuel injector and detecting element thereof, fuel injector connects servomotor II, fuel injector drain tap is sleeved on fuel injector emptying sleeve, fuel injector emptying sleeve connection fuel tank, the oil-in of fuel injector connects PT fuel pump by locking device, pressure transducer and solenoid valve VI is also provided with between fuel injector oil-in and PT fuel pump, fuel injector jet connects fuel injector holding device, fuel injector holding device connects fuel injector and detects oil circuit, detecting oil circuit is the retaining valve connected successively, metering cylinder and displacement transducer, metering cylinder oil-out connects fuel tank by solenoid valve V,
Servomotor I, servomotor II, pressure transducer, flow sensor, electromagnetic valve I, electromagnetic valve II, electromagnetic valve II I, electromagnetic valve I V, solenoid valve V, solenoid valve VI, displacement transducer connect single-chip microcomputer.
Described servomotor II connects fuel injector by cam, guide piece and fuel injector asessory shaft, and the side that fuel injector connects fuel injector asessory shaft is arranged on fuel injector bracing frame, and fuel injector bracing frame is arranged on housing.
Described guide piece includes the bearing, orienting lug, axle, set nut and the adjustment axle that connect successively.
Described locking device includes oil nozzle, oil nozzle gland, pushbutton switch.
Described housing adopts fiberglass lightweight composite materials to make, and shell dimension is 580 mm × 470 mm × 430mm.
Adopt fiberglass lightweight composite materials to be main body cover, overall stand is lighter than metal material by 80%, lighter than wood materials by 30%, and its intensity, non-deformability, corrosion resistance, fire retardancy is all better than metal, aluminium and timber.Overall dimensions 580x470x430(mm), be easy to carry.Man-machine interface and detecting device for fuel injector is provided with on tester.In the right back of tester for installing PT pump position.Electrical Testing element and fuel tanks such as driving servomotor is provided with in tester.By having carried out the detection to fuel injector and PT pump to the operation of man-machine interface, the data result of detection has been presented in man-machine interface, prevents the error of artificial observation.More can quick Measuring error.
Accompanying drawing explanation
It is portable PT fuel system tester schematic front view of the present utility model shown in Fig. 1;
It is portable PT fuel system tester schematic top plan view of the present utility model shown in Fig. 2;
It is tester fuel system schematic diagram shown in Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Include housing 1, detecting device for fuel injector and PT fuel pump pick-up unit as shown in Figures 2 and 3, described housing 1 adopts fiberglass lightweight composite materials to make, and housing 1 is of a size of 580 mm × 470 mm × 430mm, described housing 1 is provided with man-machine interface 2 and detecting device for fuel injector above, in housing 1 right back, PT fuel pump pick-up unit is installed, man-machine interface 2 connects single-chip microcomputer, PT fuel pump pick-up unit includes PT fuel pump and detecting element, PT fuel pump connects servomotor I20 by shaft coupling 19, the drain tap of PT fuel pump and oil-in are connected in the inner fuel tank (17) of housing (1), the oil-in of PT fuel pump is connected in the inner fuel tank (17) of housing (1) by filter cleaner (D), the oil-out Bonding pressure sensor G successively of PT fuel pump, flow sensor H, then 4 solenoid valves are connected respectively, electromagnetic valve I J1, electromagnetic valve II J2, electromagnetic valve II IJ3, flow control valve K on electromagnetic valve I VJ4 and separately oil circuit, finally connect fuel tank 17,
As shown in figures 1 and 3, detecting device for fuel injector includes fuel injector and detecting element thereof, described servomotor II2 connects fuel injector 10 by cam 4, guide piece 5 and fuel injector asessory shaft 6, and described guide piece 5 includes the bearing 51, orienting lug 52, axle 54, set nut 55 and the adjustment axle 56 that connect successively; The side that fuel injector 10 connects fuel injector asessory shaft 6 is arranged on fuel injector bracing frame 7, fuel injector bracing frame 7 is arranged on housing 1, fuel injector 10 connects servomotor II2, fuel injector 10 drain tap is sleeved on fuel injector emptying sleeve 8, fuel injector emptying sleeve 8 connects fuel tank 17, the oil-in of fuel injector 10 connects PT fuel pump by locking device 9, and described locking device 9 includes oil nozzle 91, oil nozzle gland 92, pushbutton switch 93; Pressure transducer G and solenoid valve VI J6 is also provided with between fuel injector 10 oil-in and PT fuel pump, fuel injector 10 jet connects fuel injector holding device 11, fuel injector holding device 11 connects fuel injector and detects oil circuit, detecting oil circuit is the retaining valve N, metering cylinder M and the displacement transducer L that connect successively, and metering cylinder M oil-out connects fuel tank 17 by solenoid valve V J5;
Servomotor I20, servomotor II2, pressure transducer G, flow sensor H, electromagnetic valve I J1, electromagnetic valve II J2, electromagnetic valve II IJ3, electromagnetic valve I VJ4, solenoid valve V J5, solenoid valve VI J6, displacement transducer L connect single-chip microcomputer.
Fuel tank 17 includes oil-in 14, drain tap 16, oil ga(u)ge 13, and oil-in 14 and oil ga(u)ge 13 are arranged and fuel tank 17 top, and drain tap 16 is arranged at fuel tank top.
The main detection item of PT fuel system is as follows:
1, PT pump exports amount of fuel, fuel pressure detects
Tested PT injection pump is exported serial connection fuel quantity, fuel pressure metering device, at different rotating speeds, measure respectively, then carry out data processing by PLC processor and reach the object of numerical monitor.Components and parts comprise high-precision pressure sensor, flow sensor etc.Carry out the detection of the detection of PT pump fuel pressure, each check point oil mass, then controlled by software, and the digital type fuel oil measuring apparatus of conversion automatically.
2, PT fuel injector test, oil spout number of times are arranged
This design adopts actuated by cams, and moving is converted into straight line by curve, realizes the detection to fuel injector oil spout oil mass, charge oil pressure.Design adopts cam promotion, power source adopts servomotor.Can maximum possible simulation test is carried out to fuel injector, accurately can control fuel injector oil spout number of times, rotational speed, thus obtain reliable measurement result accurately.This process has software to control, and can adjust fuel injector oil spout number of times, charge oil pressure, rotating speed.Judged the working condition of fuel injector by the examination criteria of measurement data and fuel injector, carry out keeping in repair, maintaining.Display result is digitizing display, solves the error of artificial range estimation.
3, fuel quantity gauging numeric display unit
Fuel metering and excellent numeric display unit are one of this project main contents that must solve.By tested PT injection pump output terminal serial connection oil mass metering device, setting idling flow and maximum flow measure range ability, environment for use complexity (environment such as scene, fuel pressure, vibrations, electromagnetic interference (EMI)), through investigating, discussing analysis, utilize the modern advanced advanced technology such as microelectric technique, hall measurement, adopt the range finding of volumetric method Hall, automatic calculating oil mass number and directly adopt the oil mass of numerical monitor reality, can reach and use general power diesel oil, meet measuring accuracy requirement, reliability is high, cost is low.
Basic mechanical design feature index:
1, major function
PT pump mainly adjusts and check point fuel delivery is measured
The flow measurement of PT pump idling
The functional test of PT pump speed regulator
PT pump mainly adjusts and check point injection pressure is measured
Fuel injector number of times is measured
Fuel injector distributive value is measured
2, environmental suitability
Environment temperature 0-40 DEG C
Without condensation during relative humidity 93%(40 DEG C)
Power supply alternating current 220V ± 10%
Physical dimension meets portable
Quality meets portable
Air pressure 64-101Kpa
Storage temperature-20 DEG C-60 DEG C
In FIG, fluid pours fuel tank 17 into by oil-in 14, observes oil ga(u)ge 13 and pours appropriate fluid into; Drain tap 16 is opened when changing fluid.
Fuel injector after fuel injector 10 packages fuel injector emptying sleeve 8, is pressed the pushbutton switch 93 of fuel injector oil-in locking device 9, is opened oil nozzle 91, fuel injector 10 is arranged between fuel injector bracing frame 7 and fuel injector holding device 11 in detecting.After installing fuel injector 10, compress the oil nozzle gland 92 of fuel injector oil-in locking device 9, operation man-machine interface 3 starts servomotor II2 and servomotor I 20.Servomotor I20 drives PT fuel pump to be that fuel injector 10 carries out rated pressure fuel feeding; Servomotor II2 is with moving cam 4, and the bearing 51 that cam 4 promotes guide piece 5 promotes fuel injector plunger by orienting lug 52, axle 54, set nut 55, adjustment axle 56 and fuel injector asessory shaft 6, arrives fuel injector oil spout state.The fluid that fuel injector 10 sprays enters measure loop by fuel injector holding device 11.Measure loop is provided with the pick-up unit such as flow sensor, pressure transducer, the charge oil pressure of fuel injector 10 and oil spout oil mass are accurately detected.
In figure 3, dotted line is element control line wiring signal, and solid line is oil circuit signal.During fuel injector 10 is tested: open solenoid valve VIJ6, servomotor I20 drives PT fuel pump B, and fluid enters fuel injector 10 by PT fuel pump B through pressure transducer G, solenoid valve VIJ6 through filter cleaner D.Unnecessary fluid flows back to fuel tank 17 by drain tap, and the fluid sprayed by fuel injector 10 enters metering cylinder M through retaining valve N, after through displacement transducer L, measure distance.Be transferred to man-machine interface 3 through software calculating data to show.After measurement terminates, open solenoid valve VJ5, metering cylinder M inner fluid flows back to fuel tank 17.Then shut electromagnetic valve VJ5, measures next time.Wherein the control of solenoid valve is operated by man-machine interface.
Control servomotor II2 by man-machine interface 3 accurately to control the oil spout number of times of fuel injector 10, rotating speed.Monitoring Data feeds back to man-machine interface 3.By the analysis to data, reach and fuel injector 10 working condition is detected.Reach and make regular check on, maintain as required.
In fig. 2, PT fuel pump is arranged on motor cabinet 18 PT fuel pump and is connected with servomotor I20 by shaft coupling 19 in detecting.Connect oil pipe.Operation man-machine interface 3 starts servomotor I20.By the speed governing to servomotor I20, reach the rotation speed requirements of each check point of PT fuel pump.At each check point, by pick-up units such as the flow sensor on oil circuit, pressure transducers, oil spout flow and the injection pressure of PT pump can be detected.Method of testing is check whether its pressure meets standard-required when the certain rotating speed of PT fuel pump, flow.4 solenoid valves J1, J2, J3, J4 respectively oil circuit control open or close.Article 4,4 main test points of the corresponding PT pump of oil circuit.Regulate flow control valve K on oil circuit, limit the flow of test point, control its rotating speed by servomotor I20, check whether its pressure meets normal data when rotating speed, flow are certain.
Test point 1: close fuel injector test oil way solenoid valve VIJ6, open electromagnetic valve I J1.Drive PT fuel pump B by servomotor I20, fluid enters fuel tank 17 by PT fuel pump B through pressure transducer G, flow sensor H, electromagnetic valve I J1 and flow control valve K through filter cleaner D.In process, pressure data, data on flows and rotating speed thereof are presented in man-machine interface.
Then operated by man-machine interface 3, open the solenoid valve of different test point oil circuit, test respectively each test point, by man-machine interface 3, method of testing, with test point 1, checks whether test data meets normal data.
After being completed, all Monitoring Data are fed back to man-machine interface 3; By the contrast to data and normal data, the duty of known PT fuel pump, reaches and makes regular check on, maintains as required.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (5)

1. a portable PT fuel system tester, include housing (1), detecting device for fuel injector and PT fuel pump pick-up unit, described housing (1) is provided with man-machine interface (2) and detecting device for fuel injector above, in housing (1) right back, PT fuel pump pick-up unit is installed, man-machine interface (2) connects single-chip microcomputer, it is characterized in that: PT fuel pump pick-up unit includes PT fuel pump and detecting element, PT fuel pump connects servomotor I(20 by shaft coupling (19)), the drain tap of PT fuel pump and oil-in are connected in the inner fuel tank (17) of housing (1), the oil-out Bonding pressure sensor (G) successively of PT fuel pump, flow sensor (H), then 4 solenoid valves are connected respectively, electromagnetic valve I (J1), electromagnetic valve II (J2), electromagnetic valve II I(J3), electromagnetic valve I V(J4) and flow control valve (K) separately on oil circuit, finally connect fuel tank (17),
Detecting device for fuel injector includes fuel injector and detecting element thereof, fuel injector (10) is by guide piece (5), cam (4) connects servomotor II(2), fuel injector (10) drain tap is sleeved on fuel injector emptying sleeve (8), fuel injector emptying sleeve (8) connects fuel tank (17), the oil-in of fuel injector (10) connects PT fuel pump by locking device (9), pressure transducer (G) and solenoid valve VI (J6) is also provided with between fuel injector (10) oil-in and PT fuel pump, fuel injector (10) jet connects fuel injector holding device (11), fuel injector holding device (11) connects fuel injector and detects oil circuit, detecting oil circuit is the retaining valve (N) connected successively, metering cylinder (M) and displacement transducer (L), metering cylinder (M) oil-out connects fuel tank (17) by solenoid valve V (J5),
Servomotor I(20), servomotor II(2), pressure transducer (G), flow sensor (H), electromagnetic valve I (J1), electromagnetic valve II (J2), electromagnetic valve II I(J3), electromagnetic valve I V(J4), solenoid valve V (J5), solenoid valve VI (J6), displacement transducer (L) connect single-chip microcomputer.
2. portable PT fuel system tester according to claim 1, it is characterized in that: described servomotor II(2) connect fuel injector (10) by cam (4), guide piece (5) and fuel injector asessory shaft (6), the side that fuel injector (10) connects fuel injector asessory shaft (6) is arranged on fuel injector bracing frame (7), and fuel injector bracing frame (7) is arranged on housing (1).
3. portable PT fuel system tester according to claim 2, is characterized in that: described guide piece (5) include connect successively bearing (51), orienting lug (52), axle (54), set nut (55) and adjustment axle (56).
4. portable PT fuel system tester according to claim 1, is characterized in that: described locking device (9) includes oil nozzle (91), oil nozzle gland (92), pushbutton switch (93).
5. portable PT fuel system tester according to claim 1, is characterized in that: described housing (1) adopts fiberglass lightweight composite materials to make, and housing (1) is of a size of 580 mm × 470 mm × 430mm.
CN201420865016.4U 2014-12-31 2014-12-31 Portable PT fuel system tester Expired - Fee Related CN204461497U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420865016.4U CN204461497U (en) 2014-12-31 2014-12-31 Portable PT fuel system tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420865016.4U CN204461497U (en) 2014-12-31 2014-12-31 Portable PT fuel system tester

Publications (1)

Publication Number Publication Date
CN204461497U true CN204461497U (en) 2015-07-08

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ID=53668368

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420865016.4U Expired - Fee Related CN204461497U (en) 2014-12-31 2014-12-31 Portable PT fuel system tester

Country Status (1)

Country Link
CN (1) CN204461497U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104634395A (en) * 2014-12-31 2015-05-20 泰安市鲁科海电子信息产业有限公司 Portable PT fuel oil system calibration instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104634395A (en) * 2014-12-31 2015-05-20 泰安市鲁科海电子信息产业有限公司 Portable PT fuel oil system calibration instrument

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

Termination date: 20181231

CF01 Termination of patent right due to non-payment of annual fee