CN2086308U - Diesel engine fuel system test table - Google Patents
Diesel engine fuel system test table Download PDFInfo
- Publication number
- CN2086308U CN2086308U CN 89206986 CN89206986U CN2086308U CN 2086308 U CN2086308 U CN 2086308U CN 89206986 CN89206986 CN 89206986 CN 89206986 U CN89206986 U CN 89206986U CN 2086308 U CN2086308 U CN 2086308U
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- China
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- fuel
- oil
- fuel injection
- test
- pump
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- 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.)
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- Testing Of Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
一种用于柴油机燃油系试验的试验台，它除了具 有为试验台提供动力传动和计数机构，并放置燃油泵 或喷油器试验台的一般染油机喷油泵试验台之外，还 有具备气路油路共用，分别可做燃油泵和喷油器的密 封性、喷油量试验的试验台，喷油器试验台的密封试 验是用密封夹紧头夹紧喷油器，另端联接气路控制 阀，更换为喷油量夹紧头，油管联接喷油器进油口，可 做喷油量试验。其优点是一台多用，结构简单试验精 度高，提高了工作效率，降低了制造成本。
A test bench for the fuel system test of a diesel engine. In addition to the general oil dyeing machine fuel injection pump test bench which provides the power transmission and counting mechanism for the test bench and places the fuel pump or fuel injector test bench, it also has The gas circuit and oil circuit are shared, and can be used as a test bench for the fuel pump and fuel injector's sealing performance and fuel injection volume test. The fuel injector test bench is used to clamp the fuel injector with a sealing clamping head, and the other end is connected. The gas circuit control valve is replaced with a fuel injection quantity clamping head, and the oil pipe is connected to the fuel inlet of the injector, which can be used for the fuel injection quantity test. The utility model has the advantages of multi-purpose, simple structure, high test precision, improved work efficiency and reduced manufacturing cost.
Description
The utility model belongs to a kind of the fuel supply system testing installation.
A kind of diesel engine is the patent of Cummins Motor Co., and it adopts unique oil-fired system.The vehicle that assembles this motor is widely used in departments such as forestry, oil, water power, metallurgy, coal, building, traffic.This motor the most outstanding technical barrier in using and keeping in repair is adjustment and the test to Fuel System intermediate fuel oil pump and oil sprayer.Only there are the U.S., Britain and Japan to produce this patent test stand at present in the world.This test stand comprises independently test stand of three difference, and wherein a bench teat is tested fuel pump, in addition two sealing and oil spout flows of testing oil sprayer respectively.Their characteristics are that separate unit independent experiment, complex structure, customizations cost an arm and a leg, and are only applicable to the situation that external vehicle is concentrated, exclusively tested.And domestic vehicle uses dispersion, all need test with car unit, and unable purchase, this makes using of this motor and keeps in repair more difficult.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art, and design a kind of simple in structure, test accuracy is high, the test stand used one more, so that reduce manufacture cost, reduces workload, increases work efficiency, and satisfies domestic demands.
Basic design content of the present utility model is, it is by power transmission, stepless speed changing mechanism and the counting mechanism of general diesel fuel injection pump tester, and a fuel pump test platform, an injector testing equipment are formed.Air-channel system, the oil-way system of fuel pump test platform and injector testing equipment are linked up by rapid pipe joint respectively, injector testing equipment connects the solenoid valve of batch meter in the counting mechanism of general diesel fuel injection pump tester and the fuel pump test platform by sensing mechanism, and the live axle of fuel pump test platform and injector testing equipment connects the power-transmitting unit axle head of general diesel fuel injection pump tester respectively through shaft coupling.When doing fuel pump test, fuel pump is fixed on special support on the table top of general diesel fuel injection pump tester and connects with its power-transmitting unit with shaft coupling, realization is to the driving and the stepless speed regulation of fuel pump, the control of fuel pump test condition and parameter show, are finished by the fuel pump test platform.
Oil sprayer is tested, be general diesel fuel injection pump tester, fuel pump test platform and injector testing equipment combination accessory use.During test the casing of injector testing equipment (seeing accompanying drawing) is fixed on the table top of general diesel fuel injection pump tester, power transmission shaft is housed in the casing, an adjustable cam is installed on the axle, the two ends of axle have bearing and skeleton oil sealing to be fixed in the casing, the front end of axle has shaft coupling, the power-transmitting unit that connects general diesel fuel injection pump tester, the rear end of axle coupling yoke attachment tooth wheel pump, with oil pipe and tracheae through gear pump and gas path control valve respectively with the oil circuit of fuel pump test platform, air-channel system is connected, servo-actuated post and return spring are housed in the middle of the case lid on the casing, two root posts are equipped with on the case lid both sides, the holder of adjustable location is arranged on the column, and have pressing plate to connect in two location holders, oil hydraulic cylinder is equipped with on column top, piston is housed in the oil hydraulic cylinder, the garden hollow stem is housed on the piston, and clamping head is arranged at the bottom of bar, and the current-carrying metering-orifice is housed in the clamping head, return spring, setting sleeve and spring bearer plate and set screw nut are installed in the top of bar.Side at case lid is installed the hydraulic pressure fuel tank, fuel tank bottom oil pipe connects with hydraulic lock-up valve, and the top oil pipe connects with oil hydraulic cylinder, and individual three-way valve is arranged at fuel tank top, connect with gas path control valve respectively, connect (air inlet when being used to detect the oil sprayer sealing) with clamping head.There is a gas source connector to connect on the gas path control valve with gas supply pipe on the fuel injection pump tester.
Oil sprayer is done leakage test on injector testing equipment, earlier tested oil sprayer is installed on the test stand, opens gas path control valve, pressurized gas enters the hydraulic oil tube, and hydraulic oil enters the hydraulic clamp oil cylinder through lock valve, with the sealing clamping head, oil sprayer is clamped, end with the block of valve again.The size of clamping force adopts special-purpose load controller adjustment, makes it reach specified value.Check the air leakage under regulation air pressure oil sprayer sealing position then, the value of reading of bubble cup and gas flowmeter can determine whether the sealing of oil sprayer is qualified the batch meter from the fuel pump test platform.When oil sprayer is carried out pilot fuel injection quantity, use the sealing clamping head instead pilot fuel injection quantity special-purpose clamping head, the filler opening that is connected to oil sprayer from gear pump through the oil pipe of pressure regulator valve.Again oil sprayer is clamped as stated above and make it to reach authorized pressure.Test stand turns round under the regulation rotating speed, oil sprayer ejection fuel oil is delivered to batch meter through oil pipe, by the solenoid valve of the counting mechanism sensing on the general diesel fuel injection pump tester to the batch meter, the fuel injection quantity of control regulation oil spout number of times, whether the fuel injection quantity of determining oil sprayer is qualified, and as requested it adjusted.
Advantage of the present invention is: on injector testing equipment, can finish the seal tightness test and the pilot fuel injection quantity of oil sprayer, realizing using one more, and general diesel injection pump and fuel pump, injector testing equipment combination accessory are used, make it simple in structure, cost is low, moves easy to use, reliable operation, test accuracy height, has improved working efficiency.
As accompanying drawing is the injector testing equipment structure principle chart, wherein: 1 shaft coupling, 2 casings, 3 cams, 6 gear pumps, 7 bearings, 8 gas path control valves, 9 gas source connectors, 10 hydraulic lock-up valves, 11 three-way valve, 12 pressing plates, 13 setting sleeves, 14 garden hollow stems, 15 spring bearer plates, 16 nuts, 17 return springs, 18 pistons, 19 oil hydraulic cylinders, 20 clamping heads, 21 metering orifices, 22 detected oil sprayers, 23 location holders, 24 columns, 25 hydraulic pressure fuel tanks, 26 case lids, 27 servo-actuated posts, 28.
Be an embodiment of the present utility model below:
The utility model is by power transmission, stepless change machine mechanism and the counting mechanism of general diesel fuel injection pump tester, a fuel pump test platform, and an injector testing equipment is formed.The tracheae of fuel pump test platform is through the tracheae of rapid pipe joint connection injector testing equipment, and the oil pipe of fuel pump test platform connects the oil pipe of injector testing equipment through rapid pipe joint; Injector testing equipment connects the solenoid valve of batch meter in the counting mechanism of general diesel fuel injection pump tester and the fuel pump test platform by sensing mechanism; The counting mechanism of fuel pump test platform and the control of test, then on its platform, fuel pump is fixed on the general diesel fuel injection pump tester through special support; The live axle of fuel pump test platform and injector testing equipment connects the power axle head of the power-transmitting unit of general diesel fuel injection pump tester respectively through shaft coupling.
Injector testing equipment shown in the drawings, in its casing 2 power transmission shaft is housed, an adjustable cam 3 is arranged on the axle, two ends are fixed in the casing 2 with bearing 7 and skeleton oil sealing, the front end of axle 28 has shaft coupling 1, the power-transmitting unit that connects general diesel fuel injection pump tester, the rear end of axle 28 is connected with oil circuit, the air-channel system of fuel pump test platform respectively with gas path control valve through gear pump with tracheae with oil pipe with coupling yoke attachment tooth wheel pump 6.In the middle of the case lid 26 on the casing 2 servo-actuated post 27 is housed, and return spring, case lid 26 both sides two root posts 24 that are fixedly connected, assembling adjustable location holder 23 on the column 24, two location holders 23, connect (this part is positioned at column 24 bottoms) with pressing plate 12, column 24 tops assembling oil hydraulic cylinder 19, assembling piston 18 connects garden hollow stem 14 in the oil hydraulic cylinder 19, garden hollow stem 14 connects clamping head 20, and current-carrying metering-orifice 21 is arranged in the clamping head 20, garden hollow stem 14 the other ends assembling return spring 17, setting sleeve 13 and spring bearer plate 15, and fixing with nut 16.Side at case lid 26 is installed hydraulic pressure fuel tank 25, the oil pipe of this 25 bottom connects with hydraulic lock-up valve 10, the top oil pipe connects with oil hydraulic cylinder 19, hydraulic pressure fuel tank 25 connects (air inlet when detecting the oil sprayer sealing) respectively by three-way valve 11 with clamping head 20 with gas path control valve 8, have a gas source connector 9 to connect with gas supply pipe on the fuel pump test platform on the gas path control valve 8.Tested oil sprayer 22 is installed on the test stand, and shaft coupling 1 connects the power transmission shaft of general diesel fuel injection pump tester, 22 actions of cam 3 rotating drive oil sprayers.Gas path control valve 8 is open-minded, and pressurized gas enters hydraulic pressure fuel tank 25, and hydraulic oil enters oil hydraulic cylinder 19 through hydraulic lock-up valve 10, with seal tightness test clamping head 20 oil sprayer 22 is clamped, and uses hydraulic lock-up valve 10 lockings again.(clamping force of oil sprayer adopts special-purpose load controller adjustment to make it reach specified value), gas is by oil sprayer 22 sealing positions simultaneously, its gas leakage is delivered to bubble cup and the gas flowmeter in the batch meter on the fuel pump test platform through tracheae, determines from the value of reading whether sealing is qualified; Seal tightness test clamping head 20, change into pilot fuel injection quantity clamping head 20 '.Again oil sprayer 22 is pressed above-mentioned clamping means, be clamped to the pressure of regulation, test stand turns round under the regulation rotating speed, fuel oil comes the filler opening of oil pipe to oil sprayer 22 from gear pump 6 through pressure regulator valve, oil sprayer 22 ejection fuel oils are delivered to batch meter on the fuel pump test platform through oil pipe, utilize counting mechanism, sensing mechanism on the general diesel fuel injection pump tester, the metering consequential signal is reached the solenoid valve of control stipulated number fuel injection quantity in the batch meter on the fuel pump test platform, thereby determine whether this fuel injection quantity is qualified, and adjust on request.
Claims (3)
1, a kind of test stand that is used for the fuel supply system test, by power transmission, stepless speed changing mechanism and the counting mechanism of general diesel fuel injection pump tester, a fuel pump test platform, an injector testing equipment is formed.It is characterized in that the fuel pump test platform is connected by rapid pipe joint respectively with air-channel system, the oil-way system of injector testing equipment; Injector testing equipment connects the solenoid valve of batch meter in the counting mechanism of general diesel fuel injection pump tester and the fuel pump test platform, the live axle of fuel pump test platform and injector testing equipment connects the power-transmitting unit axle head of general diesel fuel injection pump tester respectively through shaft coupling.
2, diesel engine fuel oil according to claim 1 is system test-bed, the casing that it is characterized in that injector testing equipment is fixed on the table top of general diesel fuel injection pump tester, the casing internal fixation is equipped with the power transmission shaft of an adjustable cam, the front end of axle has shaft coupling, the power-transmitting unit that connects general diesel fuel injection pump tester, the rear end of axle coupling yoke attachment tooth wheel pump, with oil pipe and tracheae through gear pump and gas path control valve respectively with the oil circuit of fuel pump test platform, air-channel system is connected, servo-actuated post and return spring are housed in the middle of the case lid on the casing, two root posts are equipped with on the case lid both sides, the holder of adjustable location is arranged on the column, and there is pressing plate to connect in two location holders, oil hydraulic cylinder is equipped with on column top, clamping head is arranged at the bottom of oil hydraulic cylinder garden hollow stem, the current-carrying metering-orifice is housed in the clamping head, side at case lid is installed the hydraulic pressure fuel tank, fuel tank bottom oil pipe connects with hydraulic lock-up valve, the top oil pipe connects with oil hydraulic cylinder, individual three-way valve is arranged at fuel tank top, connect with gas path control valve respectively, connect with clamping head, have a gas source connector to connect on the gas path control valve with gas supply pipe on the fuel injection pump tester.
3, diesel engine fuel oil according to claim 1 is system test-bed, it is characterized in that an end and the stand of the sealing clamping head of injector testing equipment clamps oil sprayer, and the other end connects gas path control valve; The sealing clamping head can change the special-purpose clamping head of pilot fuel injection quantity into, and its end and stand clamp oil sprayer, and the filler opening of the other end connects oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206986 CN2086308U (en) | 1989-05-09 | 1989-05-09 | Diesel engine fuel system test table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206986 CN2086308U (en) | 1989-05-09 | 1989-05-09 | Diesel engine fuel system test table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2086308U true CN2086308U (en) | 1991-10-09 |
Family
ID=4863923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89206986 Withdrawn CN2086308U (en) | 1989-05-09 | 1989-05-09 | Diesel engine fuel system test table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2086308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351637B (en) * | 2005-12-27 | 2011-03-16 | 罗伯特·博世有限公司 | Testing device for a cam-driven fuel injection system, in particular a pump/nozzle or pump/line/nozzle injection system |
| CN104895722A (en) * | 2015-06-09 | 2015-09-09 | 资阳蜀达科技有限公司 | Electronic oil injector testing stand |
-
1989
- 1989-05-09 CN CN 89206986 patent/CN2086308U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351637B (en) * | 2005-12-27 | 2011-03-16 | 罗伯特·博世有限公司 | Testing device for a cam-driven fuel injection system, in particular a pump/nozzle or pump/line/nozzle injection system |
| CN104895722A (en) * | 2015-06-09 | 2015-09-09 | 资阳蜀达科技有限公司 | Electronic oil injector testing stand |
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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 |