CN208060158U - A kind of turbocharger Unsteady characteristics test impulse generator - Google Patents
A kind of turbocharger Unsteady characteristics test impulse generator Download PDFInfo
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- CN208060158U CN208060158U CN201820353784.XU CN201820353784U CN208060158U CN 208060158 U CN208060158 U CN 208060158U CN 201820353784 U CN201820353784 U CN 201820353784U CN 208060158 U CN208060158 U CN 208060158U
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Abstract
The utility model is related to a kind of turbocharger Unsteady characteristics test impulse generators comprising upstream plate shell, intermediate plate shell and the downstream plate shell fastened successively；Symmetrical 2 trepannings are equipped on upstream plate shell and downstream plate shell, and symmetrical 2 trepannings on upstream plate shell and downstream plate shell are mutually aligned；The bearing for being used to support the first rotation axis and the second rotation axis is installed in upstream plate shell and/or downstream plate shell, it is separately installed with the first rotating disc and the second rotating disc in first rotation axis and the second rotation axis, first rotating disc and the second rotating disc are respectively positioned in intermediate plate shell, and N number of exhaust passage is uniformly distributed with along the circumference respectively on the first rotating disc and the second rotating disc；N number of exhaust passage passes through symmetrical 2 trepannings successively with the rotation of the first rotating disc and the second rotating disc；The utility model has the advantages that the pressure wave of different frequency can be generated to the various operating modes of simulated engine.
Description
Technical field
The utility model is related to a kind of turbocharger Unsteady characteristics test impulse generators, belong to engine turbine
Supercharger performance test technical field.
Background technology
As increasingly sharpening for energy crisis is increasingly strict with environmental regulation, economic performance, dynamic property to internal combustion engine
More stringent requirements are proposed for energy and emission performance etc., needs the design and matching that are more refined to entire pressure charging system.
Different according to the Land use systems of exhaust energy, turbocharging is divided into level pressure turbo charge system and pulse turbocharging system.
In pulse turbocharging system, there is larger pressure oscillation, this pressure oscillation makes the gas of turbine inlet
Body state is still in cyclically-varying under the steady state operating conditions of engine.In the past by factors such as knowwhy, research techniques
Limitation, design, calculating and the experiment of usual turbine are all based on the progress of steady-flow condition.But in actual automobile-used operating mode
Under, the flowing in turbine is often the unstable state flowing of pulse, and there are one under effect of Fluid Pulsation and steady-flow for the performance of turbine
Fixed deviation brings prodigious difficulty for design, calculating and the matching of pressure charging system.Therefore, research is in pulsating inlet condition
The Unsteady characteristics of lower turbine, influence of the analysis various factors to turbine characteristic are particularly important.
In order to reduce experimentation cost, testing efficiency is improved, through the reality for simulating engine with supercharger frequently with impulse generator
Exhaust pressure wave situation carries out the Unsteady characteristics test of turbocharger.In research before this, once used rotator type and
The impulse generator of two kinds of forms of rotating disc type.Rotator type impulse generator, can be between 2 impulse waves due in structure
There is " dying " phenomenon of a period of time, and the open channel form of rotator type impulse generator is difficult adjustment, the pressure of generation
Waveform comparison is single；The rotating disc type impulse generator designed before this improves place and is that the opening shape of turntable compares rule not to the utmost
Then, resulting is a kind of more regular sinusoidal wave, is unable to the actual exhaust air pressure wave of accurate simulation engine with supercharger
Situation carries out the Unsteady characteristics test of turbocharger.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of pressure wave simulations generating different frequency to start
The turbocharger Unsteady characteristics test impulse generator of the various operating modes of machine.
The utility model uses following technical solution：
A kind of turbocharger Unsteady characteristics test impulse generator comprising shell, the shell include successively
Arrange the upstream plate shell, intermediate plate shell and downstream plate shell of fastening；The upstream plate shell and downstream plate
It is equipped with symmetrical 2 trepannings on shell, and positioned at symmetrical 2 trepannings of upstream plate shell and is located at downstream plate shell
Symmetrical 2 trepannings be mutually aligned；
The bearing for being used to support the first rotation axis and the second rotation axis is installed in the upstream plate shell, and/or, institute
It states and the bearing for being used to support the first rotation axis and the second rotation axis is installed in the plate shell of downstream, first rotation axis and
The first rotating disc and the second rotating disc are separately installed in two rotation axis, during first rotating disc and the second rotating disc are respectively positioned on
Between in plate shell, be uniformly distributed with N number of exhaust passage along the circumference respectively on first rotating disc and the second rotating disc；N be more than etc.
In 2；N number of exhaust passage passes through symmetrical 2 trepannings successively with the rotation of the first rotating disc and the second rotating disc；
First rotation axis and the second rotation axis are rotated by external force.
Further, symmetrical 2 trepannings of the upstream plate shell are respectively communicated with upstream two-way pipe, the downstream plate
Symmetrical 2 trepannings of shape shell are respectively communicated with downstream two-way pipe, and are connected to through the downstream two-way pipe and are tested booster.
Further, the upstream two-way pipe be two-way be arranged side by side pipeline, the downstream two-way pipe be two-way side by side
The pipeline of setting.
Further, it is provided with sealing copper between the upstream plate shell, intermediate plate shell and downstream plate shell
Pad.
Further, when the quantity of the exhaust passage is 3, the duration that each exhaust passage is opened corresponds to it
First rotation axis at place or the second rotation axis rotate 120 °, where the first rotation axis or the second rotation axis rotate a circle production
Raw 3 pulses.
Further, first rotation axis and the second rotation axis stretch out the shell, and its with upstream plate shell or
It is provided with sealing rubber ring between the plate shell of downstream.
Further, the channel line style of the exhaust passage is the half-circle-arc shape with protrusion.
Further, the channel line style of the exhaust passage is segmentation arc structure, successively by the first curve, the second song
Line and the end to end composition of third curve；First curve and the second curve constitute protrusion.
Further, first rotation axis and the second rotation axis, which are stretched out on the part of the shell, is separately installed with first
Belt wheel and the second belt wheel, the first pulley and the second belt wheel are connected to by the first transmission belt and the second transmission belt electronic respectively
On machine output shaft.
Further, the utility model further include be arranged on shell be used for ensure the shell and corresponding bearing to the heart
Tablet positioning pin.
Further, the bearing is angular contact ball bearing.
Further, first rotation axis and the second rotation axis are driven by corresponding rotating disc flat key 9 described respectively
First rotating disc and the second turn disc.
Further, the motor is variable-speed motor；The supply frequency of motor is inputed to by adjusting frequency modulator
To realize the pressure wave of different frequency.
Further, the output shaft of the motor is equipped with motor terminal belt wheel, the first pulley and the second belt wheel
It is connected respectively with the motor terminal belt wheel on motor output shaft by the first transmission belt and the second transmission belt.
Further, the first pulley is equipped with first pulley and installs positioning pin, and second belt wheel is equipped with second
Belt wheel installs positioning pin.
Further, first rotation axis drives the first pulley to rotate by first pulley flat key；Described second
Rotation axis drives second belt wheel to rotate by the second belt wheel flat key.
Further, the motor terminal belt wheel, the first pulley and the second belt wheel are toothed belt, and described first
Transmission belt and the second transmission belt are toothed belt, are skidded to prevent stop-band wheel, ensure that the reliability that power transmits.
Further, it is provided through three on the upstream plate shell, intermediate plate shell and downstream plate shell
Bolt, the both ends of the bolt are equipped with the nut for fastening, and the nut is fastened by spring washer.
Further, the downstream two-way pipe is the changeover portion pipe and turbine mouth flow development and measuring section that head and the tail communicate
Pipe, on the downstream plate shell symmetrical 2 trepannings be connected with changeover portion pipe, the tested booster and the flowing of turbine mouth
Development is connected with measuring section pipe.
Further, the utility model further includes the phase positioning pin on shell, is used for positioning synchronous air inlet and out-phase
The phase difference of first rotating disc and the second rotating disc when air inlet.
In order to ensure under each angle being accurately positioned for the first rotating disc and the second rotating disc in impulse generator, devise
Detent mechanism, one end of location panel is linked together with corresponding first rotation axis or the second rotation axis by flat key, another
Insertion phase positioning pin is held, by obtaining the corresponding positioning aperture of each angle on phase positioning pin insertion upstream plate shell
Accurate positioning.
The beneficial effects of the utility model are as follows：
The utility model on downstream plate shell and upstream plate shell by opening up symmetrical 2 trepannings, and difference
Upstream and downstream two-way pipe is connected, the compressed air in air source passes sequentially through interconnected upstream two after filter, heater
The turbine chamber of Lu Guan, impulse generator, downstream two-way pipe to tested booster, the first rotation axis and the second rotation axis pass through axis
It holds through being placed in shell, N number of be pre-designed is processed on the first rotating disc and the second rotating disc by wire cutting respectively
The quantity of the good exhaust passage being equally spaced, preferably N number of exhaust passage is 3, on the first rotating disc and the second rotating disc
Flowing is generated when exhaust passage is overlapped with symmetrical 2 trepannings opened up on downstream plate shell and upstream plate shell, it can
Generate the pressure waveform similar to engine exhaust.
Since exhaust passage passes through symmetrical 2 trepannings successively with the rotation of the first rotating disc and the second rotating disc,
The channel line style of exhaust passage is the half-circle-arc shape with protrusion, circulation area when can increase initially overlapping, to improve
The speed that pressure wave rises.Further, the channel line style of exhaust passage is 3 segmentation arc structures, the topmost portion of channel line style
It is notching curve most to start overlapping part, i.e. the first curve, channel line style lower half portion is circular curve, i.e. third is bent
Smooth transition, i.e. the second curve are taken among line, the first curve and third curve；The radian of each curve can be according to specifically setting
Meter parameter obtains.
The rotating speed of first rotating disc and the second rotating disc is driven by the first rotation axis and the second rotation axis, different rotations
Frequency can generate the pressure wave of different frequency with the various operating modes of simulated engine.
The start-phase of first rotating disc and the second rotating disc can be different, therefore can generate the two-way pressure of out of phase
Reeb the phenomenon that simulate turbine binary channels out-phase air inlet in typical six cylinder engine, carries out the unstable state of turbocharger
Characteristic test provides certain reference for the design and booster of turbine with matching for engine.
Description of the drawings
Fig. 1 is the impulse generator schematic view of the mounting position of the utility model.
Fig. 2 is the attachment structure schematic diagram of the impulse generator and motor of the utility model.
Fig. 3 is the structural schematic diagram of the impulse generator of the utility model.
Fig. 4 is the A-A sectional views of Fig. 3.
Fig. 5 is the structural schematic diagram of the middle casing of the impulse generator of the utility model.
Wherein, 1 downstream plate shell, 2 intermediate plate shells, 3 sealing copper packings, 4 upstream plate shells, 5 bolts, 6 nuts,
7 spring washers, the first rotating discs of 8-1, the second rotating discs of 8-2,9 rotating disc flat keys, 10 angular contact ball bearings, 11 first pulleys,
12 first pulleys install positioning pin, 13 first rotation axis, 14 first pulley flat keys, 15 sealing rubber rings, 16 tablet positioning pins, 17
Second rotation axis, 18 second belt wheels, 19 symmetrical 2 trepannings, 20 second belt wheels installation positioning pin, 21 second belt wheel flat keys, 22
Motor, 23 first transmission belts, 24 second transmission belts, 25 upstream two-way pipes, 26 impulse generators, 27 changeover portion pipes, 28 are tested
Booster, 29 turbine mouth flow developments and measuring section pipe, 30 motor terminal belt wheels, 31 channel line styles, the first curves of 31-1,31-2
Second curve, 31-3 thirds curve, 32 protrusions, 33 exhaust passages.
Specific implementation mode
The utility model is described further with reference to Fig. 1-Fig. 5 and specific embodiment.
As Figure 1-Figure 5, the present embodiment is related to a kind of turbocharger Unsteady characteristics test impulse generator,
Including shell, the shell includes the upstream plate shell 4 for being arranged in order fastening, intermediate plate shell 2 and downstream plate shell
1；It is equipped with symmetrical 2 trepannings 19 on the upstream plate shell 4 and downstream plate shell 1, and is located at upstream plate shell 4
Symmetrical 2 trepannings 19 and be mutually aligned positioned at symmetrical 2 trepannings 19 of downstream plate shell 1；
The bearing for being used to support the first rotation axis 13 and the second rotation axis 17 is installed in the upstream plate shell 4, and/
Or, the bearing for being used to support the first rotation axis 13 and the second rotation axis 17 is installed in the downstream plate shell 1, described first
The first rotating disc 8-1 and the second rotating disc 8-2, first rotating disc are separately installed in rotation axis 13 and the second rotation axis 17
8-1 and the second rotating disc 8-2 are respectively positioned in intermediate plate shell 2, are divided on the first rotating disc 8-1 and the second rotating disc 8-2
It is not uniformly distributed with N number of exhaust passage 33 along the circumference；N is more than or equal to 2；N number of exhaust passage 33 is with the first rotating disc 8-1 and second
Symmetrical 2 trepannings 19 are passed through in the rotation of rotating disc 8-2 successively, the shape of the general exhaust passage 33 and described symmetrical
2 trepannings 19 shape it is different；
First rotation axis, 13 and second rotation axis 17 is rotated by external force.
Further, symmetrical 2 trepannings 19 of the upstream plate shell 4 are respectively communicated with upstream two-way pipe 25, described
Symmetrical 2 trepannings 19 of downstream plate shell 1 are respectively communicated with downstream two-way pipe, and are connected to tested increase through the downstream two-way pipe
Depressor 28.
Further, the upstream two-way pipe 25 be two-way be arranged side by side pipeline, the downstream two-way pipe be two-way simultaneously
Arrange the pipeline of setting.
Further, it is provided with sealing between the upstream plate shell 4, intermediate plate shell 2 and downstream plate shell 1
Copper packing 3.
Further, when the quantity of the exhaust passage 33 is 3, the duration pair of the unlatching of each exhaust passage 33
Answer the first rotation axis 13 or the second rotation axis 17 where it to rotate 120 °, where the first rotation axis 13 or the second rotation axis
17, which rotate a circle, generates 3 pulses.
Further, first rotation axis, 13 and second rotation axis 17 stretches out the shell, and itself and upstream platycone
It is provided with sealing rubber ring 15 between body 4 or downstream plate shell 1.
Further, the channel line style 31 of the exhaust passage 33 is the half-circle-arc shape with protrusion 32.
Further, the channel line style 31 of the exhaust passage 33 is 3 segmentation arc structures, successively by the first curve
31-1, the second curve 31-2 and the end to end compositions of third curve 31-3；The first curve 31-1 and the second curve 31-2 structures
At protrusion 32.
Further, first rotation axis, 13 and second rotation axis 17 is stretched out on the part of the shell and is separately installed with
First pulley 11 and the second belt wheel 18, the first pulley 11 and the second belt wheel 18 are passed by the first transmission belt 23 and second respectively
Dynamic band 24 is connected on 22 output shaft of motor.
Further, the utility model further include be arranged on shell be used for ensure the shell and corresponding bearing to the heart
Tablet positioning pin 16.
Further, the bearing is angular contact ball bearing 10.
Further, first rotation axis, 13 and second rotation axis 17 is driven by corresponding rotating disc flat key 9 respectively
The first rotating disc 8-1 and the second rotating disc 8-2 rotations.
Further, the motor 22 is variable-speed motor；The power supply of motor 22 is inputed to by adjusting frequency modulator
Frequency realizes the pressure wave of different frequency.
Further, the output shaft of the motor 22 is equipped with motor terminal belt wheel 30, the first pulley 11 and the
Two belt wheels 18 pass through the first transmission belt 23 and the second transmission belt 24 and the motor terminal belt wheel 30 on 22 output shaft of motor respectively
It is connected.
Further, the first pulley 11 is equipped with first pulley and installs positioning pin 12, is set on second belt wheel 18
There is the second belt wheel that positioning pin 20 is installed.
Further, first rotation axis 13 drives the first pulley 11 to rotate by first pulley flat key 14；Institute
State the second rotation axis 17 drives second belt wheel 18 to rotate by the second belt wheel flat key 21.
Further, the motor terminal belt wheel 30, the first pulley 11 and the second belt wheel 18 are toothed belt, institute
It is toothed belt to state the first transmission belt 23 and the second transmission belt 24, is skidded to prevent stop-band wheel, ensure that the reliability that power transmits.
Further, three are provided through on the upstream plate shell 4, intermediate plate shell 2 and downstream plate shell 1
The bolt 5 of person, the both ends of the bolt 5 are equipped with the nut 6 for fastening, and the nut 6 is fastened by spring washer 7.
Further, the downstream two-way pipe is the changeover portion pipe 27 and turbine mouth flow development and measuring section that head and the tail communicate
Pipe 29, on the downstream plate shell 1 symmetrical 2 trepannings 19 be connected with changeover portion pipe 27,28 He of tested booster
Turbine mouth flow development is connected with measuring section pipe 29.
Further, the utility model further includes the phase positioning pin on shell, is used for positioning synchronous air inlet and out-phase
The phase difference of first rotating disc 8-1 and the second rotating disc 8-2 when air inlet.
In order to ensure that the accurate of first rotating disc 8-1 and the second rotating disc 8-2 is determined in impulse generator 26 under each angle
Position, devises detent mechanism, one end of location panel is connected with 13 or second rotation axis 17 of corresponding first rotation axis by flat key
It is connected together, other end insertion phase positioning pin is corresponding by the way that phase positioning pin is inserted into each angle on upstream plate shell 4
Aperture is positioned to obtain accurate positioning.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the scope of protection of the utility model.
Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should be included in this reality
Within novel protection domain.
Claims (10)
1. a kind of turbocharger Unsteady characteristics test impulse generator, it is characterised in that：It includes shell, the shell
Upstream plate shell including being arranged in order fastening（4）, intermediate plate shell（2）With downstream plate shell（1）；The upstream plate
Shape shell（4）With downstream plate shell（1）On be equipped with symmetrical 2 trepannings（19）, and it is located at upstream plate shell（4）Pair
2 trepannings claimed（19）With positioned at downstream plate shell（1）Symmetrical 2 trepannings（19）It is mutually aligned；
The upstream plate shell（4）It is inside equipped with and is used to support the first rotation axis（13）With the second rotation axis（17）Bearing,
And/or the downstream plate shell（1）It is inside equipped with and is used to support the first rotation axis（13）With the second rotation axis（17）Axis
It holds, first rotation axis（13）With the second rotation axis（17）On be separately installed with the first rotating disc（8-1）With the second rotating disc
（8-2）, first rotating disc（8-1）With the second rotating disc（8-2）It is respectively positioned on intermediate plate shell（2）In, described first turn
Moving plate（8-1）With the second rotating disc（8-2）It is upper to be uniformly distributed with N number of exhaust passage along the circumference respectively（33）；N is more than or equal to 2；N number of institute
State exhaust passage（33）With the first rotating disc（8-1）With the second rotating disc（8-2）Rotation open successively by described symmetrical 2
Hole（19）；
First rotation axis（13）With the second rotation axis（17）It is rotated by external force.
2. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：It is described
Upstream plate shell（4）Symmetrical 2 trepannings（19）It is respectively communicated with upstream two-way pipe（25）, the downstream plate shell（1）
Symmetrical 2 trepannings（19）It is respectively communicated with downstream two-way pipe, and is connected to through the downstream two-way pipe and is tested booster（28）.
3. turbocharger Unsteady characteristics test impulse generator according to claim 2, it is characterised in that：It is described
Upstream two-way pipe（25）For the pipeline that two-way is arranged side by side, the downstream two-way pipe is the pipeline that two-way is arranged side by side.
4. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：It is described
Upstream plate shell（4）, intermediate plate shell（2）With downstream plate shell（1）Between be provided with sealing copper packing（3）.
5. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：Work as institute
State exhaust passage（33）Quantity be 3 when, each exhaust passage（33）The duration of unlatching corresponds to first turn where it
Moving axis（13）Or second rotation axis（17）Rotation 120 °, where the first rotation axis（13）Or second rotation axis（17）Rotation one
Week generates 3 pulses.
6. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：It is described
First rotation axis（13）With the second rotation axis（17）Stretch out the shell, and itself and upstream plate shell（4）Or downstream platycone
Body（1）Between be provided with sealing rubber ring（15）.
7. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：It is described
Exhaust passage（33）Channel line style（31）To carry protrusion（32）Half-circle-arc shape.
8. turbocharger Unsteady characteristics test impulse generator according to claim 1 or claim 7, it is characterised in that：
The exhaust passage（33）Channel line style（31）For 3 segmentation arc structures, successively by the first curve（31-1）, the second curve
（31-2）With third curve（31-3）End to end composition；First curve（31-1）With the second curve（31-2）Constitute protrusion
（32）.
9. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：It is described
First rotation axis（13）With the second rotation axis（17）It stretches out on the part of the shell and is separately installed with first pulley（11）With
Two belt wheels（18）, the first pulley（11）With the second belt wheel（18）Pass through the first transmission belt respectively（23）With the second transmission belt
（24）It is connected to motor（22）On output shaft.
10. turbocharger Unsteady characteristics test impulse generator according to claim 1, it is characterised in that：Its
Further include being arranged on shell for the tablet positioning pin that ensures the shell and corresponding bearing to the heart（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353784.XU CN208060158U (en) | 2018-03-15 | 2018-03-15 | A kind of turbocharger Unsteady characteristics test impulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820353784.XU CN208060158U (en) | 2018-03-15 | 2018-03-15 | A kind of turbocharger Unsteady characteristics test impulse generator |
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| Publication Number | Publication Date |
|---|---|
| CN208060158U true CN208060158U (en) | 2018-11-06 |
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|---|---|---|---|
| CN201820353784.XU Expired - Fee Related CN208060158U (en) | 2018-03-15 | 2018-03-15 | A kind of turbocharger Unsteady characteristics test impulse generator |
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| CN (1) | CN208060158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645622A (en) * | 2018-03-15 | 2018-10-12 | 河北师范大学 | A kind of turbocharger Unsteady characteristics test impulse generator |
-
2018
- 2018-03-15 CN CN201820353784.XU patent/CN208060158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645622A (en) * | 2018-03-15 | 2018-10-12 | 河北师范大学 | A kind of turbocharger Unsteady characteristics test impulse generator |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20190315 |