CN2100499U - Reliability testing table for fuel injection pumps - Google Patents
Reliability testing table for fuel injection pumps Download PDFInfo
- Publication number
- CN2100499U CN2100499U CN 91205441 CN91205441U CN2100499U CN 2100499 U CN2100499 U CN 2100499U CN 91205441 CN91205441 CN 91205441 CN 91205441 U CN91205441 U CN 91205441U CN 2100499 U CN2100499 U CN 2100499U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- injection pump
- fuel
- oil mass
- fuel injection
- 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.)
- Withdrawn
Links
Images
Landscapes
- Testing Of Engines (AREA)
Abstract
The utility model relates to a testing table for the fuel injecting pump of an internal combustion engine. The utility model which measures the fuel quantity of each cylinder with a mass method is characterized in that the utility model uses a balance to measure the fuel supplying quantity of each cylinder; when a distributing device of fuel quantity is used, one balance can be used for measuring the fuel quantity of each cylinder in rotation. The testing table adopts a microcomputer to control the action of an electromagnetic valve and an oil well pump, and can realize the automatic measurement; when the unevenness of the fuel quantity of the single cylinder or unevenness of the fuel quantity of each cylinder exceeds the boundary value, the utility model can automatically give an alarm; the utility model is suitable the endurance test and the reliability test of multi-cylinder composite fuel injection pumps, increasing the efficiency and the accuracy of test work.
Description
The utility model is a kind of improved fuel injection pump tester, belongs to the testing installation of fuel injection device for internal combustion engines, particularly a kind of Injection Pump reliability test bench that is used for block type fuel injection pump endurance test and reliability trial.
Existing fuel injection pump tester, the 12PSY55 type test stand produced of Tai'an agricultural machinery testing installation factory for example, Britain Hartridge 2500 type test stands etc. are by main transmission, compositions such as fuel gauging system and Injection Pump erecting device, wherein the fuel gauging system is that the fuel oil that each cylinder of Injection Pump is supplied with injects respectively in the corresponding graduated cylinder through high-pressure oil pipe and standard injector, preestablish the oil spout number of times and adopt artificial reading or electroprobe gauging amount, belong to the volumetric metering mode.
In order to examine the reliability of Injection Pump, Ministry of Machine-building and Electronics Industry's oil pump nozzle professional standard " the cold test method of dragging of the indoor stand of driveshaft fuel injection pump assembly reliability " separate provision in the reliability trial process the overproof boundary of operating condition of test oil mass and the overproof boundary of each cylinder oil mass ricing of operating condition of test.But existing fuel injection pump tester does not possess the automatic measurement and the autoalarm of above-mentioned two kinds of overproof boundaries.
The purpose of this utility model provides a kind of improved fuel injection pump tester, and it is applicable to the endurance test and the reliability trial of block type fuel injection pump, has the device that detects each cylinder oil mass and oil mass ricing, and automatic warning function is arranged.
The technical solution of the utility model is that the fuel gauging system of fuel injection pump tester adopts one or more balance, measures each cylinder oil mass (Fig. 1) with mass method (weighting method).In the measuring cup of the fuel oil that each cylinder of Injection Pump is supplied with on the oil sprayer injection balance of high-pressure oil pipe and the actual adapted of diesel engine.The oil circuit of turnover measuring cup adopts solenoid valve and oil well pump control.The working principle of this mass method fuel gauging mode is to preestablish time value T, measures the measuring cup mass M 2 of each cylinder when the measuring cup mass M 1 in when beginning and time T finish then respectively, calculates the fuel delivery G=M1-M2/T of each cylinder unit time.The used technology identical (for example Chinese patent 89215062.9 micro-processor controlled highi degree of accuracy fuel consumption indicators) of internal-combustion engine oil consumption instrument in the main components and parts that mass method fuel gauging system is adopted and the prior art, this technology is familiar with by the technician in IC Engine Test Technology field, but the still unexposed fuel injection pump tester that is used for of this technology so far.
Adopt when a balance is periodically touring measures each cylinder oil mass of multicylinder pump, it is to make the fuel oil of tested cylinder lead to measuring cup in sequence that the effect of an oil mass dispensing device (Fig. 2) oil mass dispensing device should be arranged, and the fuel oil of all the other each cylinders is flowed back in the fuel tank.Above-mentioned balance can adopt mechanical balance or electronic balance.For the ease of realizing microcomputer control and reporting to the police automatically, preferably adopt the electronic balance of forming by measuring cup and weighing transducer.When being used for the Injection Pump reliability test bench, the precision of balance is that 0.5g just can satisfy usage requirement.
The oil mass dispensing device can adopt its mode of operation of a multichannel valve or a plurality of triple channel valve (sliding valve style or rotary all can) can adopt manually electronic or electronic program control mode.Oil mass dispensing device shown in Figure 3 is a kind of by synchronous machine in the utility model, position transducer, signal-transmitting machine, distributor, the electronic program control multiple valve door device that transmission shaft etc. are formed.Wherein by having oilhole, the matching surface distributor formed of distributor rotor and distributor stator in relative rotation is a rotary type multichannel valve.
Can be with above-mentioned oil mass dispensing device and electronic balance, solenoid valve and monoboard microcomputer and input, output shows that devices such as printing are formed the fuel injection pump tester that has micro-processor controlled intelligent oil mass detection device together.Time value T before measuring, benchmark oil mass Go and ricing threshold value (%) all preestablish.The working procedure of oil mass dispensing device and solenoid valve, the overproof threshold value (%) that records the data processor of oil mass and oil mass is curable in intergrated circuit.When surpassing limit value, the oil mass of calculating or oil mass ricing can send sound, light alarm automatically.The block diagram of this microcomputer control oil mass detection device and basic circuit diagram such as Fig. 5, shown in Figure 6.The various components and parts of detection device can be concentrated and be assembled together, and also can separately be contained on the relative section of fuel injection pump tester, and both all can realize same function.
The advantage that the utility model is compared with prior art had is to adopt mass method to measure each cylinder oil mass, and measured value does not need to convert by the density of fuel oil.Can realize with the touring requirement of measuring each cylinder oil mass of multi-cylinder fuel injection pump of a balance after adopting the oil mass dispensing device.Adopt microcomputer control electronics balance, electronic program control multiple valve and preestablish the device of threshold value and warning device after can realize the automatic control of Injection Pump reliability trial process and report to the police automatically, and help numerous direct in the process of the test, cause the overproof and overproof diagnosing malfunction of ricing of oil mass indirectly, significantly improved the performance of test stand, increase new function, improved the efficient and the accuracy of experiment work.
Fig. 1 is a fuel injection pump tester schematic diagram of surveying each cylinder oil mass with many balances.
Fig. 2 is the Injection Pump reliability test bench schematic diagram with a balance.
Fig. 3 is an oil mass dispensing device sketch.
Fig. 4 is the drawing in side sectional elevation of distributor rotor.
Fig. 5 is the block diagram of microcomputer control oil mass detection device.
Fig. 6 is a microcomputer control oil mass detection device basic circuit diagram.
Fig. 7 is keyboard input and display unit panel layout.
Below in conjunction with description of drawings several embodiments of the present utility model.
A block type fuel injection pump ［ 1 ］ is installed on the fuel injection pump tester ［ 2 ］ among Fig. 1, by main transmission driving work.The fuel oil that each cylinder of Injection Pump is supplied with is through high-pressure oil pipe and oil sprayer ［ 3 ］, more by the road and three-way magnetic valve ［ 4 ］ inject in the measuring cup ［ 6 ］ on the balance ［ 5 ］.In order to measure the oil mass of each cylinder respectively with mass method, the quantity of day gentle measuring cup all should equal the cylinder number of Injection Pump.For example 4 cylinder pumps need be with 4 balances (conform to the principle of simplicity among the figure, a balance have only drawn).
Fig. 2 represents to have the oil mass dispensing device and adopts the touring Injection Pump reliability test bench of measuring each cylinder oil mass of an electronic balance.The fuel oil that each cylinder of Injection Pump is supplied with among the figure uses a filler opening of oil pipe and oil mass dispensing device ［ 8 ］ to be connected respectively behind high-pressure oil pipe and oil sprayer.When surveying the 1st cylinder oil mass, the 1st fuel oil that cylinder supplies is in solenoid valve ［ 4 ］ injects the measuring cup ［ 6 ］ of electronic balance ［ 9 ］, and fuel oil that all the other each cylinders supply all flows back to fuel tank ［ 7 ］ through return tube.After 1 cylinder is measured and is finished, three-way magnetic valve stop vector cup ［ 6 ］ fuel feeding, 1 cylinder fuel oil also returns into fuel tank, and then electromagnetism oil well pump ［ 10 ］ is drawn back fuel tank with the fuel oil in the measuring cup, makes balance return zero.Angle of distributor in oil mass dispensing device rotation makes another cylinder be connected with measuring cup then, measures each cylinder oil mass one by one.Wherein the main devices of electronic balance ［ 9 ］ is weighing transducer (force transducer).When adopting computer control device ［ 25 ］, this device can be installed on the appropriate location of fuel injection pump tester.
In the oil mass dispensing device shown in Figure 3, synchronous machine ［ 11 ］ drives signal-transmitting machine dish ［ 15 ］ and distributor rotor ［ 16 ］ rotation through transmission shaft ［ 12 ］.360 °/n(n of each rotation is the cylinder number of Injection Pump).Each angular orientation has the oil outlet ［ 18 ］ of fuel oil on distributor stator ［ 17 ］ of a tested cylinder to lead to measuring cup, and the fuel oil of all the other each cylinders all flows back to fuel tank through return opening ［ 19 ］.The pump of each tested cylinder oil number of times is identical in the one-shot measurement.When certain this pump oil number of times of rotating speed was directly proportional with the time that the distributor rotor stops on the several angle position, can preestablish as required.Signalling component ［ 14 ］ (for example permanent magnet) is housed on the signal-transmitting machine dish ［ 15 ］, n position transducer ［ 13 ］ (adopt Hall transducer, quantity equates with oil spout pumping cylinder number) is housed on the sensor mounting plate.When signalling component ［ 14 ］ forwarded the position relative with a certain sensor to, this sensor just sent signal, the program control three-way magnetic valve ［ 4 ］ that just can be in accordance with regulations after microcomputer (single board computer) is handled and the action of oil well pump ［ 10 ］.
Fig. 4 is the enlarged view of distributor rotor ［ 16 ］ A-A section among Fig. 3.Can see that by Fig. 3 and Fig. 4 the oil inlet hole of tested cylinder communicates with center hole and oil outlet ［ 18 ］.The fan-shaped curve bath of the oil-feed of all the other each cylinders on distributor rotor A-A section interconnects, and communicates with return opening ［ 19 ］.The internal surface of the outer surface of distributor rotor ［ 16 ］ and stator ［ 17 ］ all should precision machining to guarantee the sealing of fuel oil, its technological requirement is identical with rotor distributor pump, the genus prior art.
In block diagram shown in Figure 5, magnitude M1 that the sensor in the electronic balance ［ 9 ］ is exported and the signal of M2 are analog amount, input microprocessor after A/D converter changes digital quantity into.Measurement time T, benchmark oil mass Go and ricing threshold value (%) all adopt keyboard shown in Figure 7 ［ 22 ］ to preestablish and input microprocessor.And position signal is by Hall transducer ［ 13 ］ input microprocessor.Microprocessor (CPU) program in accordance with regulations carries out controlling display device (LED) respectively with multiple output signal after the data processing to input signal, printer, the motor ［ 11 ］ that the oil mass dispensing device is used, three-way magnetic valve ［ 4 ］, oil well pump ［ 10 ］, overproof alarm indicator lamp of oil mass ［ 23 ］ or alarm buzzer, each the overproof alarm indicator lamp of cylinder oil mass ricing ［ 24 ］ or its alarm buzzer.
Fig. 6 is the circuit diagram of microcomputer control part.The signal of force transducer output input 8031 microprocessors after 7650 amplifiers amplify among the figure.The predefined time, benchmark oil mass and ricing value adopt programmable small keybroad ［ 22 ］ through 8279 programmable keypad/display interface input microprocessors.Position signal by Hall transducer through input interface and 8243 expender input microprocessors.The various control signals of exporting after data processing adopt 6 light emitting diodes ［ 20 ］ to show, also can connect small printer and get data.
［ 21 ］ are power switches among Fig. 7, and small keybroad ［ 22 ］ has 12 double function keies.Wherein R is a reset key.Options button B is used to select 4 tunnel inputs, promptly is used for 4 cylinder Injection Pumps.Options button C is used for 6 cylinder Injection Pumps.Key A is used for manually controlling the action of oil mass dispensing device motor ［ 11 ］, by once changeing a fixing angle.The function of all the other each keys is distinguished as shown in Figure 7, and each numeric key can be used for setting the input of numerical value.For example press " 30 " button " P " and " 1 " again, and then the setting measurement time is 30 seconds.Button " P " and " 2 ", then setting the benchmark oil mass by " 50 " again is 50 grams.Button " P " and " 3 ", then setting ricing by " 10 " again is 10%.［ 23 ］ are the overproof tutorial light of oil mass among the figure, and ［ 24 ］ are the overproof tutorial light of oil mass ricing.6 display devices ［ 20 ］ the display setting numerical value, also are used for showing the fuel delivery of each cylinder except that being used for when automatic or manual is measured when preestablishing, be unit with gram (g), have a decimal.
Claims (5)
1, a kind of fuel injection pump tester [2], by main transmission, the fuel gauging system, compositions such as revolution metering system and Injection Pump erecting device, it is characterized in that having an oil mass dispensing device [8], and only adopt a mechanical balance [5] or electronic balance [9], with the touring oil mass of measuring each cylinder of Injection Pump of mass method (weighting method).
2, fuel injection pump tester according to claim 1, it is characterized in that described oil mass dispensing device ［ 8 ］ adopts by synchronous machine ［ 11 ］ sensor ［ 13 ］, signal-transmitting machine ［ 14 ］, distributor ［ 16 ］ ［ 17 ］, the electronic program control multiple valve that transmission shaft ［ 12 ］ etc. are formed.
3, fuel injection pump tester according to claim 2 is characterized in that described distributor by having oilhole, works in coordination and distributor rotor ［ 16 ］ and distributor stator ［ 17 ］ are formed in relative rotation.
4, fuel injection pump tester according to claim 1 is characterized in that adopting microcomputer control to measure automatically, show automatically, and has device and automatic sound, the electro-optical device of reporting to the police of value beyond the mark that preestablishes single cylinder oil mass threshold value.
5, fuel injection pump tester according to claim 1 is characterized in that adopting microcomputer control to measure automatically, show automatically, and has sound, the electro-optical device of reporting to the police automatically when preestablishing each cylinder oil mass ricing threshold value and value beyond the mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91205441 CN2100499U (en) | 1991-04-05 | 1991-04-05 | Reliability testing table for fuel injection pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91205441 CN2100499U (en) | 1991-04-05 | 1991-04-05 | Reliability testing table for fuel injection pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2100499U true CN2100499U (en) | 1992-04-01 |
Family
ID=4915311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91205441 Withdrawn CN2100499U (en) | 1991-04-05 | 1991-04-05 | Reliability testing table for fuel injection pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2100499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507206A (en) * | 2011-10-20 | 2012-06-20 | 中国航空动力机械研究所 | Device for measuring distribution unevenness of fuel nozzles |
| CN104532372A (en) * | 2014-12-24 | 2015-04-22 | 苏州工业园区华西泵业有限公司 | Weighing type flow machine and method |
-
1991
- 1991-04-05 CN CN 91205441 patent/CN2100499U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507206A (en) * | 2011-10-20 | 2012-06-20 | 中国航空动力机械研究所 | Device for measuring distribution unevenness of fuel nozzles |
| CN102507206B (en) * | 2011-10-20 | 2015-07-15 | 中国航空动力机械研究所 | Device for measuring distribution unevenness of fuel nozzles |
| CN104532372A (en) * | 2014-12-24 | 2015-04-22 | 苏州工业园区华西泵业有限公司 | Weighing type flow machine and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4277830A (en) | Diagnosis of engine turbocharger performance | |
| CZ289973B6 (en) | Method of determining the presence of a fuel leak | |
| JPH05288586A (en) | Fuel consumption measuring device | |
| CN1975148A (en) | Engine common rail fuel combustion system endurance test device and testing method thereof | |
| US4358828A (en) | Engine speed measuring system | |
| US4193299A (en) | Apparatus for metering fluid flow | |
| CN104266703A (en) | Multifunctional instrument for measuring fuel consumption of diesel engine | |
| US4571992A (en) | Method of determination of supply start in injection pumps | |
| CN2100499U (en) | Reliability testing table for fuel injection pumps | |
| CN102418638A (en) | Device for measuring fuel injection angle of diesel engine | |
| CN108760321B (en) | Engine power loading test system | |
| RU2313689C1 (en) | Method to determine angle of commencement of fuel injection by nozzle | |
| JPS5633511A (en) | Device for measuring fuel consumption of internal combustion engine for vehicle | |
| US4150431A (en) | Fuel consumption rate indicating system for a vehicle | |
| CN1811349A (en) | Fuel gauge for fuel oil engine | |
| CN1217094C (en) | Thin-combustion, port-sequence-injection, fully electric-controlled diesel/natural gas electronic control system for dual-fuel engine | |
| CN209115239U (en) | A kind of fuel injection pump tester detection system | |
| CN104373273B (en) | Quality formula intelligent fuel injection pump tester oil-measuring apparatus | |
| US4596216A (en) | Fuel meter | |
| CN207215209U (en) | A kind of vehicle-mounted oil consumption monitoring device | |
| CN2674420Y (en) | Monitor for on-vehicle engine power | |
| CN107505018A (en) | A kind of vehicle-mounted oil consumption monitoring device | |
| CN212744163U (en) | Oil return detection device of common rail system of engine | |
| CN2261022Y (en) | Standardization instrument of detector for diesel engine comprehensive parameter | |
| CN2436917Y (en) | Fuel consumption indicator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |