CN107782560A - A kind of bypass type booster fault detection method and device - Google Patents
A kind of bypass type booster fault detection method and device Download PDFInfo
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- CN107782560A CN107782560A CN201711158809.7A CN201711158809A CN107782560A CN 107782560 A CN107782560 A CN 107782560A CN 201711158809 A CN201711158809 A CN 201711158809A CN 107782560 A CN107782560 A CN 107782560A
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- booster
- pressure
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- failure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
Abstract
The present invention relates to supercharger art, specifically discloses a kind of bypass type booster fault detection method and device, this method comprise the following steps：Obtain to non-faulting booster be passed through the compressed gas changed according to preset pressure when, the admission pressure of non-faulting booster and the first corresponding relation figure of bypass valve opening；Under the same conditions, the compressed gas changed according to preset pressure is passed through into booster to be measured, to obtain the admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening during pressure change；Compare the first corresponding relation figure and the second corresponding relation figure, and according to comparative result judge booster to be measured whether failure.Bypass type booster fault detection method of the present invention carries out the fault detect of booster by simulating the working condition of booster, solve the problems, such as that current booster fault detect accuracy rate is not high, the reliability of engine performance measuring is improved, reduces the experimentation cost of engine performance measuring.
Description
Technical field
The present invention relates to supercharger art, more particularly to a kind of bypass type booster fault detection method and device.
Background technology
The fault detect of bypass type booster is typically whether to judge booster using the opening and closing of by-passing valve in the prior art
It is in running order.Specific detection method is that motor exhaust promotes the turbine of booster, and turbine drives coaxial gas compressor blade
Wheel rotation, to engine charge work done, air inflow is improved, after air inflow pressure reaches certain value, by-passing valve can be opened, by portion
Waste gas is divided directly to be discharged from the by-pass prot at turbine case end；If by-passing valve can be opened, then illustrate booster fault-free, if other
Port valve can not be opened, then illustrate booster failure.
Judge that the accuracy rate of booster failure is relatively low using the above method, if by-passing valve can be opened but really can not be complete
Complete to open, such booster is also judged as non-faulting booster, greatly reduces the accuracy rate of booster breakdown judge.
The content of the invention
It is an object of the invention to provide a kind of bypass type booster fault detection method and device, can solve the problem that using existing
Have booster fault detection method detection booster whether failure when accuracy rate it is relatively low the problem of.
To use following technical scheme up to this purpose, the present invention：
A kind of bypass type booster fault detection method, comprises the following steps：
Obtain to non-faulting booster be passed through according to preset pressure change compressed gas when, the air inlet of non-faulting booster
First corresponding relation figure of pressure and bypass valve opening；
Under the same conditions, the compressed gas changed according to preset pressure is passed through into booster to be measured, to obtain pressure
The admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening in change procedure；
Compare the first corresponding relation figure and the second corresponding relation figure, and judge whether booster to be measured is former according to comparative result
Barrier.
Further, preset pressure change refer to the pressure of compressed air according to gradually change from small to large or from
Small gradually change is arrived greatly.
Further, during the compressed gas according to preset pressure change is passed through into booster, measurement bypass
The movable length of the valve rod of valve, the aperture of by-passing valve is calculated by the movable length of valve rod.
Further, it is described according to comparative result judge booster to be measured whether failure, including：
In preset pressure excursion, if thering is the bypass valve opening of booster to be measured under any pressure and non-faulting to be pressurized
The absolute value of the difference of the bypass valve opening of device is more than preset value, it is determined that booster to be measured is failure booster；If any
Under pressure the absolute value of the difference of the bypass valve opening of the bypass valve opening of booster to be measured and non-faulting booster no more than
Preset value, it is determined that booster to be measured is non-faulting booster.
Further, after the determination booster to be measured is failure booster, in addition to：
It is determined that booster to be measured under the pressure of failure booster, judge the bypass valve opening of booster to be measured with it is non-therefore
Whether the difference for hindering the bypass valve opening of booster is more than zero；
If more than zero, there is plugging fault in booster；If less than zero, there is principal fault in booster.
Further, while it is determined that booster to be measured is failure booster, record determines that booster to be measured is failure
The pressure of booster.
Further, after the determination booster to be measured is failure booster, in addition to：
Compare the first corresponding relation figure and the second corresponding relation figure, record is failure booster except determination booster to be measured
Outside pressure, the absolute value of the difference of the bypass valve opening of booster to be measured and the bypass valve opening of non-faulting booster is set to be more than in advance
If the pressure of value.
To achieve these goals, present invention also offers a kind of using above-mentioned bypass type booster fault detection method
Detection means, the gas outlet of booster and the air inlet of by-passing valve pass through pipeline communication；Including for measuring booster air inlet pressure
The pressure sensing cell of power, the pressure regulating unit that the pressure for controlling compressed gas changes according to preset pressure, for surveying
Measure the measuring unit of the aperture of by-passing valve, and control unit；
The pressure sensing cell and the measuring unit are electrically connected to described control unit, and described control unit is used for
The measurement signal of the pressure sensing cell and measuring unit is received, to obtain the air inlet of booster to be measured during pressure change
Second corresponding relation figure of pressure and bypass valve opening.
Further, the pressure sensing cell is pressure sensor, and the pressure regulating unit is pressure regulator valve, the tune
The outlet of pressure valve is connected by pipeline with the air inlet of booster, and the pressure sensor is located at connecting the pressure regulator valve and described
On the pipeline of booster.
Further, the pressure regulator valve is the automatic pressure regulator for being connected to described control unit.
Further, the pressure regulator valve is manual pressure regulating valve.
Further, in addition to be connected to the display of described control unit, for show booster to be measured whether failure.
Further, the measuring unit is displacement transducer, for measuring the movable length of the by-passing valve valve rod, institute
Control unit is stated to receive the measurement signal of institute's displacement sensors and calculate the aperture of the by-passing valve；Institute's displacement sensors
Precision is 0.002mm.
Further, the air inlet of the pressure regulating unit is provided with the filter for filtering compressed air.
Further, on the pipeline between the booster and the pressure sensing cell, the pressure regulating unit and
On pipeline between the pressure sensing cell or the air inlet of the pressure regulating unit is provided with switch valve.
Further, the switch valve is the magnetic valve for being connected to described control unit.
Beneficial effects of the present invention：Bypass type booster fault detection method of the present invention is by simulating booster
Working condition carries out the fault detect of booster, solves the problems, such as that current booster fault detect accuracy rate is not high.By right
Than the first corresponding relation figure of non-faulting booster and the second corresponding relation figure of booster to be measured, whether booster can interpolate that
Failure, the accuracy of booster breakdown judge is improved, improve the reliability of engine performance measuring, reduce engine performance
The experimentation cost of test.And due to being any pressure pair of booster to be measured in preset pressure excursion during breakdown judge
Whether the absolute value of the bypass valve opening answered and the difference of non-faulting booster judged beyond permissible value, therefore can be detailed
Understand the failure situation of failure booster, can determine that failure booster goes wrong under which pressure, to failure booster
Maintenance serve directive function.
Bypass type booster failure detector of the present invention is become by being passed through into booster according to preset pressure
The working condition of the compressed air simulation booster of change, obtains the relation between the aperture of by-passing valve and the admission pressure of booster
Curve, the whole purpose checked of booster admission pressure is realized, whether avoids using in the prior art the only unlatching to by-passing valve
To judge the drawbacks of booster quality is brought, the reliability of judgement is improved.Bypass type booster fault detect of the present invention
Device experiment cost is low, simple in construction, and movement is easy for installation, realizes the linearization measurement of booster admission pressure, and being capable of root
According to contrast judge booster whether failure；And realize the automatic test of booster.
Brief description of the drawings
Fig. 1 is the flow chart of bypass type booster fault detection method of the present invention；
Fig. 2 is the schematic diagram of bypass type booster failure detector of the present invention.
In figure：
1st, booster；2nd, by-passing valve；3rd, pressure sensing cell；4th, pressure regulating unit；5th, measuring unit；6th, control is single
Member；7th, filter；8th, switch valve；9th, display.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
A kind of bypass type booster fault detection method is present embodiments provided, is comprised the following steps：Obtain to non-faulting
When booster is passed through the compressed gas changed according to preset pressure, the of the admission pressure of non-faulting booster and bypass valve opening
One corresponding graph of a relation；Under the same conditions, the compressed gas changed according to preset pressure is passed through into booster to be measured, to obtain
The admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening during pressure change；Compare the first corresponding pass
System figure and the second corresponding relation figure, and according to comparative result judge booster to be measured whether failure.
The present embodiment carries out the fault detect of booster by simulating the working condition of booster, solves current booster
The problem of fault detect accuracy rate is not high.By contrast non-faulting booster the first corresponding relation figure and booster to be measured
Two corresponding relation figures, can interpolate that booster whether failure, improve the accuracy of booster breakdown judge, improve engine
The reliability of performance test, reduce the experimentation cost of engine performance measuring.And due to being to preset pressure during breakdown judge
In excursion, whether the absolute value of bypass valve opening and the difference of non-faulting booster corresponding to any pressure of booster to be measured
Judged beyond permissible value, therefore, it is possible to understand the failure situation of failure booster in detail, can determine that failure booster exists
Which gone wrong under pressure, the maintenance to failure booster serves directive function.
Fig. 1 is the flow chart of bypass type booster fault detection method described in the present embodiment, and the present embodiment is with bypass type whirlpool
This method is described in detail exemplified by wheel booster, this method specifically includes following steps：
Step 1: obtain to non-faulting booster be passed through according to preset pressure change compressed gas when, non-faulting supercharging
The admission pressure of device and the first corresponding relation figure of bypass valve opening.
Preset pressure change refer to the pressure of compressed air according to gradually change from small to large or from big to small by
Gradual change.In the present embodiment, preset pressure change refers to the pressure of compressed air according to gradually changing from small to large.This
Embodiment uses the pressure of automatic Regulation valve regulation compressed air, in the certain situation of the air pressure for entering automatic pressure regulator
Under, automatic Regulation valve opening can be adjusted by control unit and be gradually changed according to 0%-100% so that the pressure of compressed air
According to gradually changing from small to large.
In the present embodiment, the aperture of the by-passing valve can calculate according to the movable length of the valve rod of by-passing valve.Specifically,
During the compressed gas according to preset pressure change is passed through into booster, the moving long of the valve rod of by-passing valve is measured
Degree, the aperture of by-passing valve is calculated by the movable length of valve rod.The movable length of the valve rod of by-passing valve and the aperture of by-passing valve it
Between conversion relation be prior art, will not be repeated here.
Step 2: under the same conditions, the compressed gas changed according to preset pressure is passed through into booster to be measured, to obtain
The admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening in pressure power change procedure.
In order to avoid the influence of other factors, it is therefore desirable to obtain the first corresponding relation figure and second under the same conditions
Corresponding relation figure.Require that non-faulting booster is identical with the model of booster to be measured simultaneously.
Step 3: compare the first corresponding relation figure and the second corresponding relation figure.
In preset pressure excursion, under any pressure, the bypass valve opening of non-faulting booster and increasing to be measured
Whether the absolute value of the difference of the bypass valve opening of depressor exceedes preset value.
Step 4: in preset pressure excursion, if having the bypass valve opening of booster to be measured under any pressure with it is non-
The absolute value of the difference of the bypass valve opening of failure booster is more than preset value, it is determined that booster to be measured is failure booster.
If booster has gas leakage or blockage, compared with non-faulting booster, by-passing valve opens under equal pressure
The difference of degree can be bigger.Specifically, it is determined that booster to be measured for failure booster pressure under, judge booster to be measured
Whether the difference for bypassing valve opening and the bypass valve opening of non-faulting booster is more than zero；If more than zero, booster exists stifled
Fill in failure；If less than zero, there is principal fault in booster.By determining that failure booster has plugging fault or gas leakage
Failure, it can be that directive function is played in the maintenance of failure booster, be easy to maintenance personal quickly to determine to cause failure booster
The reason for blocking or gas leakage.
In the present embodiment, while it is determined that booster to be measured is failure booster, record determines booster to be measured for event
Hinder the pressure of booster.Record and determine that booster to be measured is that the pressure value of failure booster can be the maintenance of failure booster
Play directive function.
After the determination booster to be measured is failure booster, in addition to：Compare the first corresponding relation figure and second
Corresponding relation figure, record the bypass valve opening in addition to pressure of the booster to be measured for failure booster is determined, making booster to be measured
It is more than the pressure of preset value with the absolute value of the difference of the bypass valve opening of non-faulting booster.
It is all in addition to pressure of the booster to be measured for failure booster is determined by recording, make the by-passing valve of booster to be measured
The absolute value of aperture and the difference of the bypass valve opening of non-faulting booster is more than the pressure of preset value, can be failure booster
Maintenance play directive function, be easy to maintenance personal to quickly find the failure cause of failure booster.
Step 5: in preset pressure excursion, if under any pressure the bypass valve opening of booster to be measured with it is non-
The absolute value of the difference of the bypass valve opening of failure booster is no more than preset value, it is determined that booster to be measured increases for non-faulting
Depressor.
As shown in Fig. 2 the present embodiment additionally provides a kind of inspection using above-mentioned bypass type booster fault detection method
Device is surveyed, the gas outlet of the booster 1 of bypass type passes through pipeline communication with the air inlet of by-passing valve 2.Bypass described in the present embodiment
Formula booster failure detector includes being used for the pressure sensing cell 3 for measuring the admission pressure of booster 1, for controlling compressed gas
The pressure regulating unit 4 that the pressure of body changes according to preset pressure, the measuring unit 5 of the aperture for measuring by-passing valve 2, and control
Unit 6 processed；The pressure sensing cell 3 and the measuring unit 5 are electrically connected to described control unit 6, described control unit 6
For receiving the measurement signal of the pressure sensing cell 3 and measuring unit 5, to obtain booster to be measured during pressure change
Admission pressure with bypass valve opening the second corresponding relation figure.
Wherein described control unit 6 is previously stored with the first corresponding relation figure of the non-faulting booster of respective model, with
It is easy to the first corresponding relation figure of the non-faulting booster by the second corresponding relation figure of booster to be measured Yu the model to carry out pair
Than.
In the present embodiment, the pressure sensing cell 3 is pressure sensor, and the pressure regulating unit 4 is pressure regulator valve, institute
The outlet for stating pressure regulator valve is connected by pipeline with the air inlet of booster 1, and the pressure sensor is located at the connection pressure regulator valve
On the connecting pipe of the booster 1.By measuring the admission pressure of booster 1, that is, measure the pressure of the air inlet of booster 1
Power；The pressure regulator valve is used for the pressure for adjusting compressed air, enabling is passed through into booster 1 according to preset pressure change
Compressed air.The measuring unit 5 is displacement transducer, for measuring the movable length of the valve rod of by-passing valve 2, the control
Unit 6 receives the measurement signal of institute's displacement sensors and calculates the aperture of the by-passing valve 2；The precision of institute's displacement sensors
For 0.002mm, the measurement accuracy of the valve rod movable length of by-passing valve is improved by using high-precision displacement transducer, is then carried
The accuracy for the bypass valve opening that height is calculated.
Pressure regulator valve described in the present embodiment is the automatic pressure regulator for being connected to described control unit 6, is easy to accurate control compression
The pressure change of air, ensure that the first relativity figure and the second relativity figure obtain under preset pressure change, avoid
Influence of the pressure condition difference to judged result.The pressure regulator valve can also use manual pressure regulating valve, by artificially adjusting manually
Pressure regulator valve changes to adjust the admission pressure of booster 1.
Bypass type booster failure detector described in the present embodiment also includes the display for being connected to described control unit 6
9, for show booster to be measured whether failure.
The air inlet of the pressure regulating unit 4 is provided with the filter 7 for filtering compressed air, right by filter 7
The compressed air being passed through in booster 1 is filtered, and guarantee avoids booster 1 into being clean air in booster 1
It is contaminated.
On pipeline between the booster 1 and the pressure sensing cell 3, the pressure regulating unit 4 and the pressure
On pipeline between power detection unit 3 or the air inlet of the pressure regulating unit 4 is provided with switch valve 8.Controlled by switch valve 8
Compressed air processed being passed through and cutting off.
In the present embodiment, the switch valve 8 is located on the pipeline between the booster 1 and the pressure sensing cell 3,
Preferably, the switch valve 8 is the magnetic valve for being connected to described control unit 6；The switch valve 8 is controlled by control unit 6
Opening and closing.
Fault detect, tool are carried out to bypass type booster using bypass type booster failure detector described in the present embodiment
Body comprises the following steps：
1st, preset pressure is set by control unit 6 to change；
2nd, start after being passed through compressed air to booster to be measured, control magnetic valve to open by control unit 6, control simultaneously
Unit 6 controls automatic Regulation valve events to cause the downstream pressure i.e. admission pressure of booster of automatic pressure regulator according to preset pressure
Change and change, and the valve rod movable length for the by-passing valve that the start recording of control unit 6 passes through displacement sensor simultaneously is simultaneously
The automatic aperture for calculating by-passing valve；With the second corresponding relation for obtaining the admission pressure of booster to be measured with bypassing valve opening
Figure；
3rd, when the admission pressure of booster to be measured reaches the maximum in preset pressure change, while control unit 6 is stopped
Only record the movable length of the valve rod of by-passing valve；
4th, control unit 6 by the second corresponding relation figure of booster to be measured with model non-faulting booster the first couple
Answer graph of a relation to be compared, it is automatic judge booster whether failure；And show that current booster failure to be measured is examined by display 9
Survey result.
The present embodiment controls the working condition of automatic pressure regulator and switch valve by control unit 6, realizes admission pressure
Automatically control, and the work shape of booster 1 is simulated by being passed through the compressed air changed according to preset pressure into booster 1
State, the relation curve between the admission pressure of the aperture of by-passing valve 2 and booster 1 is obtained, realize the whole inspection of the admission pressure of booster 1
The purpose looked into, avoid, using only whether unlatching to by-passing valve judges the drawbacks of booster quality is brought in the prior art, carrying
The high reliability judged.The failure detector experimentation cost of bypass type booster is low described in the present embodiment, simple in construction, mobile
It is easy for installation, realize the linearization measurement of booster admission pressure, and can be judged according to contrast booster whether failure；And
Realize the automatic test of booster 1.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating example of the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (16)
1. a kind of bypass type booster fault detection method, it is characterised in that comprise the following steps：
Obtain to non-faulting booster be passed through according to preset pressure change compressed gas when, the admission pressure of non-faulting booster
The first corresponding relation figure with bypassing valve opening；
Under the same conditions, the compressed gas changed according to the preset pressure is passed through into booster to be measured, to obtain pressure
The admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening in change procedure；
Compare the first corresponding relation figure and the second corresponding relation figure, and according to comparative result judge booster to be measured whether failure.
2. bypass type booster fault detection method according to claim 1, it is characterised in that the preset pressure change
Refer to the pressure of compressed air according to gradually changing or gradually change from big to small from small to large.
3. bypass type booster fault detection method according to claim 1, it is characterised in that be passed through into booster
During compressed gas according to preset pressure change, the movable length of the valve rod of by-passing valve is measured, passes through the movement of valve rod
The aperture of length computation by-passing valve.
4. bypass type booster fault detection method according to claim 1, it is characterised in that described according to comparative result
Judge booster to be measured whether failure, including：
In preset pressure excursion, if having the bypass valve opening and non-faulting booster of booster to be measured under any pressure
The absolute value for bypassing the difference of valve opening is more than preset value, it is determined that booster to be measured is failure booster；If in any pressure
Under booster to be measured bypass valve opening and non-faulting booster bypass valve opening difference absolute value no more than presetting
Value, it is determined that booster to be measured is non-faulting booster.
5. bypass type booster fault detection method according to claim 4, it is characterised in that determine increasing to be measured described
Depressor be failure booster after, in addition to：
It is determined that booster to be measured under the pressure of failure booster, to judge that the bypass valve opening of booster to be measured increases with non-faulting
Whether the difference of the bypass valve opening of depressor is more than zero；
If more than zero, there is plugging fault in booster；If less than zero, there is principal fault in booster.
6. bypass type booster fault detection method according to claim 4, it is characterised in that it is determined that booster to be measured
For failure booster while, record determines the pressure that booster to be measured is failure booster.
7. bypass type booster fault detection method according to claim 6, it is characterised in that determine increasing to be measured described
Depressor be failure booster after, in addition to：
Compare the first corresponding relation figure and the second corresponding relation figure, record is except the pressure for determining that booster to be measured is failure booster
Outside, the absolute value of the difference of the bypass valve opening of booster to be measured and the bypass valve opening of non-faulting booster is made to be more than preset value
Pressure.
8. a kind of detection means using any described bypass type booster fault detection method of claim 1 to 7, booster
(1) gas outlet and the air inlet of by-passing valve (2) pass through pipeline communication；It is characterised in that it includes enter for measuring booster (1)
The pressure sensing cell (3) of atmospheric pressure, the pressure regulating unit that the pressure for controlling compressed gas changes according to preset pressure
(4), for the measuring unit (5) for the aperture for measuring by-passing valve (2), and control unit (6)；
The pressure sensing cell (3) and the measuring unit (5) are electrically connected to described control unit (6), and the control is single
First (6) are used for the measurement signal for receiving the pressure sensing cell (3) and measuring unit (5), during obtaining pressure change
The admission pressure of booster to be measured and the second corresponding relation figure of bypass valve opening.
9. detection means according to claim 8, it is characterised in that the pressure sensing cell (3) is pressure sensor,
The pressure regulating unit (4) is pressure regulator valve, and the outlet of the pressure regulator valve is connected by pipeline with the air inlet of booster (1),
The pressure sensor is on the pipeline for connecting the pressure regulator valve and the booster (1).
10. detection means according to claim 9, it is characterised in that the pressure regulator valve is to be connected to described control unit
(6) automatic pressure regulator.
11. detection means according to claim 9, it is characterised in that the pressure regulator valve is manual pressure regulating valve.
12. detection means according to claim 8, it is characterised in that also include being connected to the aobvious of described control unit (6)
Show device (9), for show booster to be measured whether failure.
13. detection means according to claim 8, it is characterised in that the measuring unit (5) is displacement transducer, is used
In the movable length for measuring by-passing valve (2) valve rod, described control unit (6) receives the measurement signal of institute's displacement sensors
And calculate the aperture of the by-passing valve (2)；The precision of institute's displacement sensors is 0.002mm.
14. detection means according to claim 8, it is characterised in that the air inlet of the pressure regulating unit (4) is provided with
Filter (7) for filtering compressed air.
15. detection means according to claim 8, it is characterised in that the booster (1) and the pressure sensing cell
(3) on the pipeline on the pipeline between, between the pressure regulating unit (4) and the pressure sensing cell (3) or the pressure
The air inlet of power adjustment unit (4) is provided with switch valve (8).
16. detection means according to claim 15, it is characterised in that the switch valve (8) is to be connected to the control
The magnetic valve of unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158809.7A CN107782560A (en) | 2017-11-20 | 2017-11-20 | A kind of bypass type booster fault detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158809.7A CN107782560A (en) | 2017-11-20 | 2017-11-20 | A kind of bypass type booster fault detection method and device |
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| CN107782560A true CN107782560A (en) | 2018-03-09 |
Family
ID=61429765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711158809.7A Pending CN107782560A (en) | 2017-11-20 | 2017-11-20 | A kind of bypass type booster fault detection method and device |
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| CN (1) | CN107782560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219859A (en) * | 2019-06-30 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of fault detection method, device and fluid power system |
| CN114607505A (en) * | 2022-03-01 | 2022-06-10 | 潍柴动力股份有限公司 | Engine supercharger fault detection method, detection device and detection equipment |
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| CN200986496Y (en) * | 2006-05-30 | 2007-12-05 | 卡特彼勒公司 | Device for detecting fault of discharge gas door |
| JP4185793B2 (en) * | 2003-03-17 | 2008-11-26 | 日産ディーゼル工業株式会社 | Degassing valve operating pressure inspection device |
| CN103674522A (en) * | 2013-11-26 | 2014-03-26 | 北京宇航系统工程研究所 | Valve test system |
| CN103759907A (en) * | 2014-01-23 | 2014-04-30 | 潍柴动力股份有限公司 | EGR pipeline fault detection method |
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|---|---|---|---|---|
| JPS5676767A (en) * | 1979-11-26 | 1981-06-24 | Hitachi Ltd | Detecting method for abnormality in swing-type nonreturn valve |
| JP4185793B2 (en) * | 2003-03-17 | 2008-11-26 | 日産ディーゼル工業株式会社 | Degassing valve operating pressure inspection device |
| CN200986496Y (en) * | 2006-05-30 | 2007-12-05 | 卡特彼勒公司 | Device for detecting fault of discharge gas door |
| CN103674522A (en) * | 2013-11-26 | 2014-03-26 | 北京宇航系统工程研究所 | Valve test system |
| CN103759907A (en) * | 2014-01-23 | 2014-04-30 | 潍柴动力股份有限公司 | EGR pipeline fault detection method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219859A (en) * | 2019-06-30 | 2019-09-10 | 潍柴动力股份有限公司 | A kind of fault detection method, device and fluid power system |
| CN114607505A (en) * | 2022-03-01 | 2022-06-10 | 潍柴动力股份有限公司 | Engine supercharger fault detection method, detection device and detection equipment |
| CN114607505B (en) * | 2022-03-01 | 2023-03-21 | 潍柴动力股份有限公司 | Engine supercharger fault detection method, detection device and detection equipment |
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Application publication date: 20180309 |