CN105021378A - Test device for press filter cover pressure pulse test - Google Patents
Test device for press filter cover pressure pulse test Download PDFInfo
- Publication number
- CN105021378A CN105021378A CN201410159041.5A CN201410159041A CN105021378A CN 105021378 A CN105021378 A CN 105021378A CN 201410159041 A CN201410159041 A CN 201410159041A CN 105021378 A CN105021378 A CN 105021378A
- Authority
- CN
- China
- Prior art keywords
- oil
- test
- pressure
- pulse
- valve plate
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 239000003921 oil Substances 0.000 claims abstract description 54
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000012795 verification Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 241000976924 Inca Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a test device for press filter cover pressure pulse test, comprising a test bench and pressure pulse hardware tools. The test bench includes an oil pump and an oil supply mouth, and is used to provide hydraulic oil controlled by pressure, temperature and flow. Each pressure pulse hardware tool includes a pulse generation device and a valve plate; the pulse generation device generates pulse acting on the hydraulic oil; a connecting tool is mounted on the valve plate to connect a to-be-tested press filter cover piece; and the valve plate includes an oil inlet and an oil outlet, wherein the oil inlet receives the hydraulic oil from the oil supply mouth of the test bench, the oil outlet is connected with the oil pump, and the oil inlet is connected with the oil outlet through an oil channel inside the valve plate. The test device has the advantages of being accurate, reliable and efficient in pressure pulse durability test, simple in structure, strong and durable, and convenient to maintain.
Description
Technical field
Patent of the present invention relates to the test unit of auto parts and components, specifically, relates to a kind of double clutch gearbox filter press lid pressure pulse test device.
Background technology
Double clutch gearbox is very high to the requirement of fluid, and oily cleanliness will directly affect the usability of variator.Filter press utilizes the suspension contained in filter core oil and water separation and the bonding colloidal particles can not removed through precipitation clarification, makes fluid transparent.The effect of filter press lid is protection filter core; and it is dust-proof; working pressure is 9 ~ 20bar; by screw thread, filter press lid and housing are coupled together; the reliability that is threaded of obvious filter press lid is matter of utmost importance; and filter press lid pressure pulse endurance quality determines its serviceable life, also directly affect its security, so verification experimental verification must be carried out to filter press lid pulse endurance quality.Not yet find ripe equipment and method for the long duration test of double clutch gearbox filter press lid pressure pulse at present, also just cannot use permanance and the security of verification experimental verification double clutch gearbox filter press lid.
Summary of the invention
The technical problem to be solved in the present invention is to provide one can carry out the high and lower-cost double clutch gearbox filter press lid pressure pulse durability test apparatus of pressure pulse long duration test, reliability to double clutch gearbox filter press lid.
The test unit of a kind of filter press lid pressure pulse test that the present invention relates to, comprising: test-bed, described test-bed comprises oil pump and oil-feed port, for providing the hydraulic oil through pressure, temperature and flow control; And pressure pulse hardware frock, described pressure pulse hardware frock comprises pulse generating device and valve plate, described pulse generating device produces the pulse acting on described hydraulic oil, described valve plate is installed connecting tooling to connect to be measured of filter press lid, described valve plate also comprises oil-in and oil-out, described oil-in receives the hydraulic oil from the oil-feed port of described test-bed, and described oil-out connects described oil pump, and described oil-in is connected with described oil-out by the oil duct in described valve plate.
In above-mentioned test unit, alternatively, described pressure pulse hardware frock also comprises supporting component, and described supporting component comprises mounting base, side plate and rear plate, described side plate and described rear plate are arranged on described mounting base respectively vertically, and described side plate and described rear plate all support described valve plate.
In above-mentioned test unit, alternatively, oil duct in described valve plate comprises the first oil duct be connected with described oil-in and the second oil duct be connected with described oil-out, described valve plate is provided with at least one interface connecting described connecting tooling, described interface is at least provided with the first hole connecting described first oil duct and the second hole being connected described second oil duct.
In above-mentioned test unit, alternatively, described pressure pulse hardware frock also comprises: pressure acquisition device; And temperature collecting device; Described test unit also comprises pressure pulse software control system, and described pressure pulse software control system comprises: store calibration facility, it is for receiving described pressure acquisition device data and described temperature collecting device data; And control panel, it is for monitoring described pressure acquisition device data and described temperature collecting device data and at data exception alarm with make described test-bed stop.
In above-mentioned test unit, alternatively, described pressure acquisition device is pressure transducer, and described temperature collecting device is thermocouple.
In above-mentioned test unit, alternatively, described pressure pulse software control system also comprises: time counter, its temporal frequency of pulse for regulating described pulse generating device and producing; And relay, it is for controlling the opening and closing of described pulse generating device.
In above-mentioned test unit, alternatively, described test-bed also comprises experimental cabin, hydraulic pressure oil sump, hydraulic oil heating and cooling system and flow, pressure and temperature control system.
In above-mentioned test unit, alternatively, described test-bed is provided with the viewing area of the pressure of display hydraulic oil, temperature and flow.
In above-mentioned test unit, alternatively, the described hydraulic oil from test-bed enters into the oil-in of described valve plate by pulse generating device.
In above-mentioned test unit, alternatively, described pulse generating device is solenoid valve.
Owing to have employed such scheme, the present invention has following characteristics: this test unit extendability is strong, can install connecting tooling, to connect the filter press lid pressure pulse long duration test of other models on valve plate; Also can carry out the long duration test of multiple filter press lid pressure pulse, the duty of accurate simulation filter press lid simultaneously; Pressure, temperature and frequency parameter are adjustable, are applicable to multiple operating condition of test; Pressure and temperature sudden change can provide protection mechanism in time.The long duration test of test unit pressure pulse is accurately, reliable, efficiency is high, and simple structure, sturdy and durable, easy to maintenance.
By the detailed description below with reference to accompanying drawing, other aspects and features of the present invention become obvious.But it should be known that this accompanying drawing is only the object design of explanation, instead of as the restriction of scope of the present invention, this is because it should with reference to additional claim.Should also be appreciated that, accompanying drawing is only intended to structure described herein and flow process are described conceptually, unless otherwise noted, unnecessaryly draws accompanying drawing to scale.
Accompanying drawing explanation
Consult the detailed description of following embodiment by reference to the accompanying drawings, present invention will become more fully understood, and reference numbers same in accompanying drawing refers to element same in view all the time.Wherein:
Fig. 1 is the oil circuit figure of the test unit of the filter press lid pressure pulse test that the present invention relates to;
Fig. 2 is the structural representation of the test-bed in the test unit of the filter press lid pressure pulse test that the present invention relates to;
Fig. 3 is the structural representation of the pulse hardware frock in the test unit of the filter press lid pressure pulse test that the present invention relates to;
Fig. 4 is the vertical view of the valve plate in the pulse hardware frock in Fig. 3;
Fig. 5 is the bottom sectional view of the valve plate in the pulse hardware frock in Fig. 3.
Embodiment
For the theme helping those skilled in the art can understand application claims protection definitely, describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Two parts are at least comprised: test-bed and pressure pulse hardware frock, also comprise pressure pulse software control system in the test unit of the filter press lid pressure pulse long duration test that the present invention relates to.Test-bed can be described as hydraulic bench again, and it can meet the suitable hydraulic oil of test condition as source of supply to be measured the supply of filter press lid.Pressure pulse hardware frock is for installing to be measured of filter press, and to be measured of this filter press carries out pressure pulse long duration test in pressure pulse hardware frock under the duty of simulation.Pressure pulse software control system carries out monitor and forecast to the hydraulic system of whole test unit, when generation exception or when breaking down, can also make corresponding action in time.
First introduce principle of work of the present invention.See Fig. 1, be the oil circuit figure of test unit that the present invention relates to.The first pulse hardware frock 3 and the second pulse hardware frock 5 two pulse hardware frocks are comprised for whole test unit.This oil circuit at least comprises filtrator 1, oil pump, the first pulse hardware frock 3, second pulse hardware frock 5, first switch electromagnetic valve 4, second switch solenoid valve 8.Hydraulic oil is from hydraulic pressure oil sump, through filtrator 1 and oil pump 2, be introduced into the first switch electromagnetic valve 4, under the control of this first switch electromagnetic valve 4, hydraulic oil enters the first pulse hardware frock 3 and the second pulse hardware frock 5 respectively, eventually gets back to hydraulic pressure oil sump by second switch solenoid valve 8., also arrange relay 6 wherein, this relay 6 is electrically connected with the first switch electromagnetic valve 4, second switch solenoid valve 8.In addition, also arrange pressure control unit 7, this pressure control unit 7 can be arranged in the first pulse hardware frock 3, second pulse hardware frock 5 (the mark 7' see in Fig. 1) respectively.Go back set temperature control module 9 equally, this temperature control unit 9 can be arranged in the first pulse hardware frock 3, second pulse hardware frock 5 (the mark 9' see in Fig. 1) respectively.Pressure control unit 7 and temperature control unit 9 all can give control system Signal transmissions, and are presented on test-bed.
See Fig. 2, the structural representation of the test-bed of the test unit that the present invention relates to.Described test-bed at least comprises oil pump and oil-feed port 15, for the hydraulic oil provided through pressure, temperature and flow control.
In addition, hydraulic bench also comprises experimental cabin 14, hydraulic pressure oil sump, hydraulic oil heating/cooling system 16 and flow, pressure, temperature control system.As shown in Figure 1, experimental cabin 14 is located at the middle body of hydraulic bench, is hydraulic oil heating/cooling system 16 below it, and flow, pressure, temperature control system can according to the various characteristic regulation and control of hydraulic oil in experimental cabin 14.In the side of experimental cabin 14, be provided with the viewing area 12 of display pressure, temperature and flow, pilot lamp 11 and button area 10, as can be seen here, this system is except automatically regulating hydraulic oil, also can manually regulate, to provide suitable mounting condition to be measured of filter press lid.The top of hydraulic bench is also provided with mist of oil collector 13, and this mist of oil collector 13 can gather because analysis of hydraulic oil overheat produces mist of oil, finally collects in fuel tank, reduces the loss of hydraulic oil.
Hydraulic bench possesses hydraulic pressure, detection, display and n-back test module, can real time record pressure, temperature and cycle index.Hydraulic pressure oil sump temperature is adjustable within the scope of 20 DEG C to 150 DEG C, and pressure is adjustable in 0 to 80bar scope.
See Fig. 3, be the pressure pulse hardware frock of test unit that the present invention relates to, this pressure pulse hardware frock comprises pulse generating device and valve plate 19.Pulse generating device produces the pulse acting on hydraulic oil, valve plate 19 is installed connecting tooling to connect to be measured of filter press lid.Preferably, to be measured is installed on valve plate 19 by screw thread.Valve plate 19 also comprises oil-in 25 and oil-out 26, and oil-in 25 receives the hydraulic oil of the oil-feed port 15 from test-bed, and oil-out 26 connects oil pump, and oil-in 25 is connected with oil-out 26 by the oil duct in valve plate 19.
Pressure pulse hardware frock also comprises supporting component, and this supporting component comprises mounting base 17, side plate 18 and rear plate 21, and side plate 18 and rear plate 21 are arranged on mounting base 17 respectively vertically, and side plate 18 and rear plate 21 all support valve plate 19.
See Fig. 4 and Fig. 5, the vertical view being respectively valve plate 19 and the sectional view looked up.Oil duct in valve plate 19 comprises the first oil duct 23 be connected with oil-in 25 and the second oil duct 24 be connected with oil-out 26, valve plate 19 is provided with at least one interface 22 being connected to connecting tooling, interface 22 is at least provided with the first hole 27 connecting described first oil duct 23 and the second hole 28 being connected described second oil duct 24.In the diagram, valve plate 19 is provided with three interfaces 22, therefore can be connected with to be measured of three filter press lids accordingly.In addition, because the setting of connecting tooling, to be measured of multiple filter press lid can be identical, also can be different model.In Figure 5, the first oil duct 23 arranged in valve plate 19 and the second oil duct 24 can be connected with the first hole 27 of each interface 22 and the second hole 28 respectively.Get back to Fig. 3 (in figure 3, not shown interface 22), supporting component has two, and in each supporting component, oil-in 25 and the oil-out 26 of valve plate 19 is connected respectively on a total port of oil-feed and a fuel-displaced total port by manifold (oil pipe 20) and is connected with oil-feed port 15 and oil pump.So just achieve in single test, can be measured of multiple filter press lid even to be measured of the filter press lid test of multiple different model.In the present embodiment, can simultaneously to 6 filter press lid tests.
For pressure pulse hardware frock, one group of valve plate 19 and supporting component are only set.Pulse generating device is preferably switch electromagnetic valve, pressure acquisition device and temperature collecting device.Oil-feed port 15 is connected with switch electromagnetic valve by flexible pipe, and switch electromagnetic valve is connected with oil-in 25 by screw thread.Switch electromagnetic valve provides the pulse needed for pressure pulse test, and pressure acquisition device is preferably pressure transducer, and temperature collecting device is preferably thermocouple.Thermocouple detects the temperature of to be measured, and pressure transducer detects the pressure of to be measured.One lateral edges of valve plate 19 has three recesses, 29, three recesses 29 to be convenient to the cabling of sensor installation.
The pressure pulse software control system of test unit comprises storage calibration facility, control panel, time counter and relay.Store calibration facility for receiving pressure acquisition device data and temperature collecting device data.Control panel is for monitor force harvester data and temperature collecting device data and at data exception alarm and test-bed is stopped.Time counter is used for the temporal frequency of the pulse that regulating impulse generation device produces.Relay is used for the opening and closing of gating pulse generation device.Entered into the oil-in 25 of described valve plate 19 by pulse generating device from the hydraulic oil of test-bed.
Particularly, control system is made up of INCA equipment, NI control panel etc.INCA equipment is monitored in real time test pressure and temperature data and preserves.Dynamic monitoring pressure and temperature data on NI control panel, when to be measured inefficacy, pressure or temperature anomaly time, can report to the police, stand is anxious to stop.Time counter adjustment pull up time, the frequency of final regulating impulse test.The generation of pressure pulse is provided the hydraulic oil of satisfactory flow, pressure, temperature by hydraulic bench, the opening and closing of actuating of relay gauge tap solenoid valve produces pressure pulse waveform.
The invention provides a kind of for double clutch gearbox filter press lid pulse durability test apparatus, (interface 22 namely on valve plate 19 is groove structure can to install connecting tooling on valve plate, to be measured of filter press lid is directly contained in the groove on valve plate 19), to connect the filter press lid pressure pulse long duration test of other models.Also can carry out the long duration test of 6 filter press lid pressure pulses, working limit operating mode (working limit operating mode is large throttle upshift stage Mainline(main line) the pressure surge situation of simulation filter press lid) simultaneously; Pressure, temperature and frequency parameter are adjustable, are applicable to multiple operating condition of test; Pressure and temperature sudden change can provide protection mechanism in time.The long duration test of test unit pressure pulse is accurately, reliable, efficiency is high, and simple structure, sturdy and durable, easy to maintenance.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the scope of the invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. the test unit of filter press lid pressure pulse test, is characterized in that comprising:
Test-bed, described test-bed comprises oil pump and oil-feed port, for providing the hydraulic oil through pressure, temperature and flow control; And
Pressure pulse hardware frock, described pressure pulse hardware frock comprises pulse generating device and valve plate, described pulse generating device produces the pulse acting on described hydraulic oil, described valve plate is installed connecting tooling to connect to be measured of filter press lid, described valve plate also comprises oil-in and oil-out, described oil-in receives the hydraulic oil from the oil-feed port of described test-bed, and described oil-out connects described oil pump, and described oil-in is connected with described oil-out by the oil duct in described valve plate.
2. test unit according to claim 1, it is characterized in that: described pressure pulse hardware frock also comprises supporting component, described supporting component comprises mounting base, side plate and rear plate, described side plate and described rear plate are arranged on described mounting base respectively vertically, and described side plate and described rear plate all support described valve plate.
3. test unit according to claim 1, it is characterized in that: the oil duct in described valve plate comprises the first oil duct be connected with described oil-in and the second oil duct be connected with described oil-out, described valve plate is provided with at least one interface connecting described connecting tooling, described interface is at least provided with the first hole connecting described first oil duct and the second hole being connected described second oil duct.
4. test unit according to claim 1, is characterized in that: described pressure pulse hardware frock also comprises:
Pressure acquisition device; And
Temperature collecting device;
Described test unit also comprises pressure pulse software control system, and described pressure pulse software control system comprises:
Store calibration facility, it is for receiving described pressure acquisition device data and described temperature collecting device data; And
Control panel, it is for monitoring described pressure acquisition device data and described temperature collecting device data and at data exception alarm with make described test-bed stop.
5. test unit according to claim 4, is characterized in that: described pressure acquisition device is pressure transducer, and described temperature collecting device is thermocouple.
6. test unit according to claim 4, is characterized in that described pressure pulse software control system also comprises:
Time counter, its temporal frequency of pulse for regulating described pulse generating device and producing; And
Relay, it is for controlling the opening and closing of described pulse generating device.
7. test unit according to claim 1, is characterized in that: described test-bed also comprises experimental cabin, hydraulic pressure oil sump, hydraulic oil heating and cooling system and flow, pressure and temperature control system.
8. test unit according to claim 7, is characterized in that: the viewing area described test-bed being provided with the pressure of display hydraulic oil, temperature and flow.
9. test unit according to claim 1, is characterized in that: the described hydraulic oil from test-bed enters into the oil-in of described valve plate by pulse generating device.
10. test unit according to claim 9, is characterized in that: described pulse generating device is solenoid valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410159041.5A CN105021378B (en) | 2014-04-21 | 2014-04-21 | The experimental rig of pressure filter lid pressure pulse test |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410159041.5A CN105021378B (en) | 2014-04-21 | 2014-04-21 | The experimental rig of pressure filter lid pressure pulse test |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105021378A true CN105021378A (en) | 2015-11-04 |
CN105021378B CN105021378B (en) | 2017-11-24 |
Family
ID=54411515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410159041.5A Expired - Fee Related CN105021378B (en) | 2014-04-21 | 2014-04-21 | The experimental rig of pressure filter lid pressure pulse test |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105021378B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110595756B (en) * | 2019-10-12 | 2021-05-14 | 邵芮 | Practical condition detection device for filter plate of filter press |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1746646A (en) * | 2004-09-09 | 2006-03-15 | 扬动股份有限公司 | Method and device for detecting air valve tightness of cylinder cover of internal combustion engine |
CN201000416Y (en) * | 2007-01-11 | 2008-01-02 | 詹有耕 | Pressure resistant automatic testing equipment for explosion-proof aluminum casing of electrolyte capacitor |
US20120067690A1 (en) * | 2010-07-08 | 2012-03-22 | GM Global Technology Operations LLC | Hydraulic clutch and method for determining an adaptive clutch fill volume of the hydraulic clutch |
CN102445391A (en) * | 2011-10-09 | 2012-05-09 | 东南大学 | Pressure pulse fatigue testing device for directly generating pulses with plunger pump |
CN102519787A (en) * | 2012-01-13 | 2012-06-27 | 中国重汽集团济南动力有限公司 | Simulation cylinder head for pulse test of engine body of engine |
CN102645340A (en) * | 2012-04-10 | 2012-08-22 | 浙江大学 | Automobile radiator pressure pulse test platform |
CN102735561A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | Cylinder head thermal shock test bench based on pre-tightening force, and method thereof |
CN103017987A (en) * | 2012-11-29 | 2013-04-03 | 上海尚泰环保配件有限公司 | Device for testing compressive strength of electromagnetic pulse valve shell |
-
2014
- 2014-04-21 CN CN201410159041.5A patent/CN105021378B/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1746646A (en) * | 2004-09-09 | 2006-03-15 | 扬动股份有限公司 | Method and device for detecting air valve tightness of cylinder cover of internal combustion engine |
CN201000416Y (en) * | 2007-01-11 | 2008-01-02 | 詹有耕 | Pressure resistant automatic testing equipment for explosion-proof aluminum casing of electrolyte capacitor |
US20120067690A1 (en) * | 2010-07-08 | 2012-03-22 | GM Global Technology Operations LLC | Hydraulic clutch and method for determining an adaptive clutch fill volume of the hydraulic clutch |
CN102445391A (en) * | 2011-10-09 | 2012-05-09 | 东南大学 | Pressure pulse fatigue testing device for directly generating pulses with plunger pump |
CN102519787A (en) * | 2012-01-13 | 2012-06-27 | 中国重汽集团济南动力有限公司 | Simulation cylinder head for pulse test of engine body of engine |
CN102645340A (en) * | 2012-04-10 | 2012-08-22 | 浙江大学 | Automobile radiator pressure pulse test platform |
CN102735561A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | Cylinder head thermal shock test bench based on pre-tightening force, and method thereof |
CN103017987A (en) * | 2012-11-29 | 2013-04-03 | 上海尚泰环保配件有限公司 | Device for testing compressive strength of electromagnetic pulse valve shell |
Also Published As
Publication number | Publication date |
---|---|
CN105021378B (en) | 2017-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201828400U (en) | Electromagnetic valve and valve body performance detection device for automatic transmission | |
CN101858291B (en) | Detection and analysis test stand of electric control diesel engine injector and control method thereof | |
CN104296975B (en) | A kind of electrical-control hydraulic automatic gear-box electromagnetic valve test system | |
CN105257524A (en) | Oil pump test platform and test method thereof | |
CN102221469B (en) | Comprehensive test bed for vehicle warmer | |
CN105021378A (en) | Test device for press filter cover pressure pulse test | |
CN201310394Y (en) | Lubricating oil automatic detecting and filtering device | |
CN201126688Y (en) | Nuclear power plant instrument control synthetic training apparatus | |
CN208383430U (en) | Dynamic cutter carrier unit head reliability test | |
CN202648929U (en) | Water gas interstage valve detection device | |
CN202329932U (en) | Batch detection system of hydraulic pressure measuring instrument | |
CN202066653U (en) | Automatic oil circuit leakage detection and control system of test bed of vehicle part | |
CN202176500U (en) | Pollutant accelerated life test rack of aircraft engine driven pump | |
CN102539137A (en) | Detector and detection method for electromagnetic valve of automobile automatic transmission | |
CN102562564A (en) | Hardware system of high-pressure pump performance test table using PXI bus technology | |
CN207081722U (en) | A kind of water quality monitoring system based on Internet of Things data | |
CN202066672U (en) | Measuring and controlling system for pressure alternation test of air-air charge air cooler | |
CN207894614U (en) | A kind of oil pump performance test system | |
CN108181109A (en) | A kind of oil pump performance tests system | |
CN204985170U (en) | Differential pressure indicator test equipment | |
CN202471403U (en) | Detector for automobile automatic gearbox solenoid valve | |
CN114922807B (en) | Intelligent detection system for air compressor component of railway vehicle | |
CN103217277B (en) | Engine laminate restrictor test board | |
CN208502998U (en) | The reliability detecting device of water pump | |
CN208534907U (en) | The hydraulic valve assembly off-line test rack of automatic transmission |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |
|
CF01 | Termination of patent right due to non-payment of annual fee |