CN208902414U - A kind of scavenging flowing test system - Google Patents
A kind of scavenging flowing test system Download PDFInfo
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- CN208902414U CN208902414U CN201821783675.8U CN201821783675U CN208902414U CN 208902414 U CN208902414 U CN 208902414U CN 201821783675 U CN201821783675 U CN 201821783675U CN 208902414 U CN208902414 U CN 208902414U
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- scavenging
- cylinder sleeve
- test system
- flow
- air
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Abstract
The utility model relates to Engine Block Test technical fields, disclose a kind of scavenging flowing test system.Scavenging flowing test system includes: air blower；Scavenging air box, scavenging air box are connected to air blower；Cylinder sleeve, cylinder sleeve one end are provided with scavenging component, and scavenging component is configured as control air-flow and flows into cylinder sleeve, and one end that cylinder sleeve is provided with scavenging component is threaded through in scavenging air box, and the other end of cylinder sleeve is provided with gas deflation assembly, and gas deflation assembly is configured as control air-flow outflow cylinder sleeve；Detection components, detection components are used to measure the running parameter of scavenging flowing test system；And Acquisition Instrument, Acquisition Instrument are electrically connected with detection components, Acquisition Instrument is configured as analyzing the flow parameter of cylinder sleeve internal gas flow according to the measurement data of detection components.The utility model can accurately detect the flowing of cylinder sleeve internal gas flow, to analyze the scavenging flow process of engine air cylinder interior by setting detection components and Acquisition Instrument.
Description
Technical field
The utility model relates to Engine Block Test technical field more particularly to a kind of scavenging flowing test systems.
Background technique
The scavenging process of engine covers all stage that exhaust valve closing is opened into from scavenging port.Engine interior gas
The flowing of stream directly affects the uniformity coefficient that fresh air is mixed with fuel oil, and then influences the combustion characteristics of mixed gas.In addition,
Scavenging air-flow can also effectively disperse the thermal stress of mechanical part, play certain cooling effect.Therefore, optimize engine
Scavenging process is particularly significant in terms of improving engine performance and improving working efficiency.In use, accurate due to being difficult to
The flowing for measuring cylinder interior air-flow, can not be effectively tested that engine works under different conditional parameters or engine is not using
The influence that same scavenging component flows scavenging.
Utility model content
Based on the above, the purpose of this utility model is to provide a kind of scavenging flowing test system, simulated engines
The flowing of cylinder interior air-flow when work, by the information of flow inside detection cylinder sleeve, cylinder interior when analyzing engine operation
Scavenging flow process.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of scavenging flowing test system, comprising: air blower；Scavenging air box, the scavenging air box are connected to the air blower；Cylinder
Set, described cylinder sleeve one end are provided with scavenging component, and the scavenging component is configured as control air-flow and flows into the cylinder sleeve, the cylinder
One end that set is provided with the scavenging component is threaded through in the scavenging air box, and the other end of the cylinder sleeve is provided with gas deflation assembly,
The gas deflation assembly is configured as control air-flow and flows out the cylinder sleeve；Detection components, the detection components are for measuring described sweep
The running parameter of flow of air test macro；And Acquisition Instrument, the Acquisition Instrument are electrically connected with the detection components, the Acquisition Instrument quilt
It is configured to analyze the flow parameter of the cylinder sleeve internal gas flow according to the measurement data of the detection components.
As a kind of preferred embodiment of scavenging flowing test system, the detection components include flowmeter, the flowmeter
It is configured as the flow that measurement flows into air-flow in the scavenging air box.
As a kind of preferred embodiment of scavenging flowing test system, the detection components include paddle wheel anemometer, the leaf
The inside of the cylinder sleeve is arranged in piece anemobiagraph.
As a kind of preferred embodiment of scavenging flowing test system, the detection components include Temperature Humidity Sensor.
As a kind of preferred embodiment of scavenging flowing test system, the detection components include pressure sensor, described to sweep
At least one in gas tank and the cylinder sleeve is connect with the pressure sensor.
As a kind of preferred embodiment of scavenging flowing test system, the scavenging component includes: scavenging port, the scavenging port
It is arranged in the scavenging air box and is connect with the cylinder sleeve, is provided with transfer port on the scavenging port；Piston, the piston setting
Inside the cylinder sleeve, it is correspondingly arranged on first motor with the piston, the first motor is configured as driving the piston
Open or block the transfer port.
As a kind of preferred embodiment of scavenging flowing test system, the gas deflation assembly includes: cylinder cap, the cylinder cap and institute
Cylinder sleeve connection is stated, is provided with gas vent on the cylinder cap；Exhaust valve, the exhaust valve are arranged inside the cylinder sleeve, and described
Exhaust valve is correspondingly arranged on the second motor, and second motor is configured as that the exhaust valve is driven to open or block the exhaust
Hole.
As a kind of preferred embodiment of scavenging flowing test system, the scavenging flowing test system further includes frequency converter,
The frequency converter adjusts the pressure of the air-flow of the air blower outflow.
As a kind of preferred embodiment of scavenging flowing test system, the scavenging flowing test system further includes pressure stabilizing bucket,
The pressure stabilizing bucket is connected to the air blower and the scavenging air box respectively.
As a kind of preferred embodiment of scavenging flowing test system, the scavenging component and/or the gas deflation assembly and institute
Cylinder sleeve is stated to be detachably connected.
The utility model has the following beneficial effects:
The utility model is by providing a kind of scavenging flowing test system, cylinder interior air-flow when simulated engine works
Flowing.By the information of flow inside detection cylinder sleeve, the scavenging flow process of cylinder interior when analyzing engine operation.By setting
Detection components are set, the running parameter of the scavenging flowing test system is measured, by the way that Acquisition Instrument is arranged, collect the measurement of detection components
Data are quantified as parameter and then analyze movement of the air-flow inside cylinder sleeve to obtain information of flow.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 is the structural schematic diagram of scavenging flowing test system provided by the utility model；
Fig. 2 is scavenging air box provided by the utility model, the structural schematic diagram at cylinder sleeve；
Fig. 3 is the connection relationship diagram of scavenging flowing test system provided by the utility model.
In figure:
1- air blower, 2- pressure stabilizing bucket, 3- paddle wheel anemometer, 4- flowmeter, 5- scavenging air box,
6- scavenging component, 61- scavenging port, 62- piston, 7- cylinder sleeve,
8- gas deflation assembly, 81- cylinder cap, 82- exhaust valve, 83- exhaust duct, 84- exhaust pipe, 9- pressurizer tank.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
It is practical new to belong to this for those skilled in the art's every other embodiment obtained without creative efforts
The range of type protection.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term is " even
It is logical ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
As Figure 1-Figure 2, the present embodiment provides a kind of scavenging flowing test system, which includes
Air blower 1, scavenging air box 5, cylinder sleeve 7, detection components and Acquisition Instrument.Wherein, air blower 1 is provided for the scavenging flowing test system and is held
Continuous air-flow is expelled to atmosphere by the scavenging flowing test system after air-flow is followed by scavenging air box 5 and cylinder sleeve 7.Pass through detection
Component measures the running parameter of the scavenging flowing test system, the measurement data of detection components is collected by Acquisition Instrument, to examine
It surveys and analyzes the information of flow in cylinder sleeve 7.
Specifically, as shown in Fig. 2, one end of cylinder sleeve 7 is provided with scavenging component 6, and cylinder sleeve 7 is provided with scavenging component 6
One end is threaded through in scavenging air box 5.Wherein scavenging component 6 includes scavenging port 61 and piston 62, by setting scavenging component 6 to control
Flowing of the air-flow from scavenging air box 5 to cylinder sleeve 7.In the present embodiment, scavenging port 61 is cylindrical tube structure, and one end with cylinder sleeve 7
It is tightly connected, the cylindrical surface phase along the scavenging port 61 is evenly distributed with multiple transfer ports, and air-flow flows into cylinder sleeve by transfer port
7.Piston 62 is slidably arranged in inside scavenging port 61 and cylinder sleeve 7, is sealed and is cooperated with cylinder sleeve 7.It is transported by the linear reciprocation of piston 62
The opening and closing of dynamic control scavenging component 6 and the flowing of air-flow.62 one end of piston is provided with piston rod, and piston rod passes through the scavenging air box 5
It is connected to first motor, which is configured as driving piston 62 and opens or block transfer port.In the present embodiment, the first electricity
Machine is linear motor, drives piston rod band 62 straight reciprocating motion of piston by linear motor.Certainly, in other embodiments
In, other scavenging components 6 that control air-flow inflow cylinder sleeve 7 may be implemented can be used.
The other end of cylinder sleeve 7 is provided with gas deflation assembly 8, and for controlling air-flow outflow cylinder sleeve 7, gas deflation assembly 8 includes cylinder cap
81, exhaust valve 82, exhaust duct 83 and exhaust pipe 84 are expelled to atmosphere by setting gas deflation assembly 8 to control air-flow from cylinder sleeve 7.
In the present embodiment, 81 side of cylinder cap and cylinder sleeve 7 are tightly connected, and the other side is connected with exhaust duct 83 and exhaust pipe 84, and cylinder in turn
The junction of lid 81 and exhaust duct 83 is provided with gas vent.Air-flow by cylinder sleeve 7 through the gas vent on cylinder cap 81, followed by exhaust
Road 83 and exhaust pipe 84 are expelled to atmosphere.Certainly, in other embodiments, cylinder cap 81, exhaust duct 83 and exhaust pipe 84 can also be with
It is integrated design.Exhaust valve 82 is slidably arranged in cylinder sleeve 7 and cylinder cap 81 encloses in the space set, and exhaust valve 82 can be connected to cylinder
With seal vents on lid 81, the opening and closing of gas deflation assembly 8 is controlled by the straight reciprocating motion of exhaust valve 82.Exhaust valve 82 1
End is provided with exhasut valve stem, and exhasut valve stem sequentially passes through cylinder cap 81 and exhaust duct 83, is connected to the second motor, the second motor quilt
It is configured to driving exhaust valve 82 and opens or block gas vent.In the present embodiment, the second motor is linear motor, passes through linear motor
Exhasut valve stem is driven to drive 82 straight reciprocating motion of exhaust valve.Certainly, in other embodiments, control air-flow may be implemented in other
The gas deflation assembly 8 of outflow cylinder sleeve 7 can be used.
For simplify text, using cylinder sleeve 7 close to the side of scavenging air box 5 as left side, the side with cylinder sleeve 7 far from scavenging air box 5 is
Right side describes the motion process of piston 62 and exhaust valve 82.Wherein, which is configured as, when piston 62 is located at first
When setting, piston 62 is located at the left end of its movement travel, and piston 62 is located on the left of transfer port at this time, and air-flow passes through from scavenging air box 5
Transfer port flows into cylinder sleeve 7；When piston 62 is located at the second position, piston 62 is located at the middle part of its movement travel, at this time piston 62
On the right side of transfer port, gas can not flow into piston 62, cylinder sleeve 7 and cylinder cap 81 and enclose the space set；When piston 62 is located at third position
When setting, piston 62 is located at the right end of its movement travel.The motion process of piston 62 and exhaust valve 82 is divided into four-stage.First
When the stage, piston 62 moves to the second position by first position, and exhaust valve 82 leaves in cylinder cap 81 to open gas vent, at this point,
Air-flow flows in cylinder sleeve 7；When second stage, piston 62 moves to the third place by the second position, and exhaust valve 82 is connected to cylinder
With seal vents on lid 81, the air-flow in cylinder sleeve 7 is compressed at this time；When the phase III, piston 62 is moved to by the third place
The second position, exhaust valve 82 leave in cylinder cap 81 to open gas vent；When fourth stage, piston 62 moves to by the second position
One position, exhaust valve 82 are connected on cylinder cap 81 with seal vents.Certainly, in other embodiments, other are able to achieve control
Air-flow flows into the scavenging component 6 of cylinder sleeve 7 and the scheme of the gas deflation assembly 8 of control air-flow outflow cylinder sleeve 7 and can be used.
As shown in figure 3, Acquisition Instrument is electrically connected with multiple detection components, to collect multiple measurement data, and by data transmission
To microcomputer, by microcomputer under the measurement data comprehensive analysis difference test condition of each detection components, cylinder
The parameters such as discharge coefficient, average flow coefficient, vortex intensity and swirl ratio inside set 7.Scavenging flowing test system is arranged can
When specific scavenging flowing occurring to show in all directions, comprehensive running parameter in scavenging flowing test system.
Specifically, detection components include flowmeter 4, and flowmeter 4 is arranged between air blower 1 and scavenging air box 5, to measure stream
Enter the flow of air-flow in scavenging air box 5.Further, scavenging flowing test system further includes pressure stabilizing bucket 2, and pressure stabilizing bucket 2 is arranged in drum
Between blower 1 and flowmeter 4, with the pressure for the air-flow that stabilizing blower 1 flows out.The wherein air inlet of pressure stabilizing bucket 2 and gas outlet
Position be staggered, to prevent air-flow from flowing directly out pressure stabilizing bucket 2 without pressure stabilization function.In the present embodiment, in flowmeter 4 and scavenging
Pressurizer tank 9 is additionally provided between case 5, which plays the role of further steady air flow pressure.
Specifically, detection components further include pressure sensor.Three pressure sensors, three pressure are arranged in the present embodiment altogether
Sensor is connected with cylinder sleeve 7, scavenging air box 5 and atmosphere respectively, with tested in cylinder sleeve 7 respectively pressure signal, in scavenging air box 5
Pressure signal and atmospheric pressure.
Specifically, detection components further include paddle wheel anemometer 3.The inside of cylinder sleeve 7 is arranged in paddle wheel anemometer 3, passes through leaf
Vortex in the rotary speed information analysis cylinder of piece anemobiagraph 3.Wherein the pressure sensor in paddle wheel anemometer 3 and cylinder sleeve 7 cooperates, to cylinder
The flow parameter of the inside of set 7 is tested.
Specifically, detection components further include Temperature Humidity Sensor.Temperature Humidity Sensor and the pressure sensing being communicated with the atmosphere
Device is arranged at by the scavenging flowing test system, acquires environmental information, with comprehensive analysis experimental enviroment, i.e., the temperature of atmosphere,
The influence of humidity and pressure to test result.
Specifically, detection components further include piston displacement sensor and exhaust valve displacement sensor.Piston displacement sensor
It is oppositely arranged with piston 62, exhaust valve displacement sensor is oppositely arranged with exhaust valve 82.In the present embodiment, piston 62 and exhaust valve
82 be linear motion, and piston displacement sensor and exhaust valve displacement sensor measure the straight line of piston 62 Yu exhaust valve 82 respectively
Stroke.It certainly in other embodiments, also should be corresponding if scavenging component 6 and gas deflation assembly 8 take different set-up modes
Change the set-up mode of detection components corresponding with scavenging component 6 and gas deflation assembly 8.
Further, scavenging flowing test system further includes frequency converter, and frequency converter is connected with air blower 1, to adjust from drum
The pressure of the air-flow flowed out in blower 1.By the way that frequency converter is arranged, may be implemented to detect under different stream pressures inside cylinder sleeve 7
Information of flow, and then analyze the influence that different stream pressures flows scavenging.Wherein, frequency converter can by Acquisition Instrument with it is micro-
Type computer is connected, and by the output frequency of Microcomputer control frequency converter, adjusts the pressure of the air-flow of the outflow of air blower 1
Power.Meanwhile Acquisition Instrument collects the output frequency of frequency converter, the measurement data comprehensive analysis frequency converter setpoint frequency with detection components
The influence that downstream pressure flows scavenging.
Further, scavenging component 6 and gas deflation assembly 8 are detachably connected with cylinder sleeve 7.Pass through replacement scavenging component 6 and row
Pneumatic module 8, with test respectively the different structures of the components such as piston 62, scavenging port 61, cylinder cap 81, exhaust valve 82 to cylinder sleeve 7 inside
The influence of air-flow, so that design is capable of providing the scavenging component 6 and gas deflation assembly 8 of more preferable scavenging flow effect.It can by setting
The scavenging component 6 and gas deflation assembly 8 of dismantling connection, the scavenging component 6 and gas deflation assembly 8 of test engine that can be easy are to sweeping
The influence of flow of air is conducive to the exploitation design and lasting improvement of engine.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of scavenging flowing test system characterized by comprising
Air blower (1)；
Scavenging air box (5), the scavenging air box (5) are connected to the air blower (1)；
Cylinder sleeve (7), described cylinder sleeve (7) one end are provided with scavenging component (6), and the scavenging component (6) is configured as control air-flow
It flowing into the cylinder sleeve (7), one end that the cylinder sleeve (7) is provided with the scavenging component (6) is threaded through in the scavenging air box (5),
The other end of the cylinder sleeve (7) is provided with gas deflation assembly (8), and the gas deflation assembly (8) is configured as described in control air-flow outflow
Cylinder sleeve (7)；
Detection components, the detection components are used to measure the running parameter of the scavenging flowing test system；And
Acquisition Instrument, the Acquisition Instrument are electrically connected with the detection components, and the Acquisition Instrument is configured as according to the detection components
Measurement data analyze the flow parameter of cylinder sleeve (7) internal gas flow.
2. scavenging flowing test system according to claim 1, which is characterized in that the detection components include flowmeter
(4), the flowmeter (4) is configured as the flow that measurement flows into air-flow in the scavenging air box (5).
3. scavenging flowing test system according to claim 1, which is characterized in that the detection components include blade wind speed
Instrument (3), inside of paddle wheel anemometer (3) setting in the cylinder sleeve (7).
4. scavenging flowing test system according to claim 1, which is characterized in that the detection components include that temperature and humidity passes
Sensor.
5. scavenging flowing test system according to claim 1, which is characterized in that the detection components include pressure sensing
At least one in device, the scavenging air box (5) and the cylinder sleeve (7) is connect with the pressure sensor.
6. scavenging flowing test system according to claim 1, which is characterized in that the scavenging component (6) includes:
Scavenging port (61), the scavenging port (61) is arranged in the scavenging air box (5) and connect with the cylinder sleeve (7), described to sweep
Port is provided with transfer port on (61)；
Piston (62), piston (62) setting is internal in the cylinder sleeve (7), is correspondingly arranged on the first electricity with the piston (62)
Machine, the first motor are configured as that the piston (62) is driven to open or block the transfer port.
7. scavenging flowing test system according to claim 1, which is characterized in that the gas deflation assembly (8) includes:
Cylinder cap (81), the cylinder cap (81) connect with the cylinder sleeve (7), are provided with gas vent on the cylinder cap (81)；
Exhaust valve (82), exhaust valve (82) setting is internal in the cylinder sleeve (7), is correspondingly arranged on the exhaust valve (82)
Second motor, second motor are configured as that the exhaust valve (82) is driven to open or block the gas vent.
8. scavenging flowing test system according to claim 1-7, which is characterized in that the scavenging flowing test
System further includes frequency converter, and the frequency converter adjusts the pressure of the air-flow of air blower (1) outflow.
9. scavenging flowing test system according to claim 1-7, which is characterized in that the scavenging flowing test
System further includes pressure stabilizing bucket (2), and the pressure stabilizing bucket (2) is connected to the air blower (1) and the scavenging air box (5) respectively.
10. scavenging flowing test system according to claim 1-7, which is characterized in that the scavenging component (6)
And/or the gas deflation assembly (8) is detachably connected with the cylinder sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783675.8U CN208902414U (en) | 2018-10-31 | 2018-10-31 | A kind of scavenging flowing test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821783675.8U CN208902414U (en) | 2018-10-31 | 2018-10-31 | A kind of scavenging flowing test system |
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| CN208902414U true CN208902414U (en) | 2019-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084985A (en) * | 2018-10-31 | 2018-12-25 | 中船动力研究院有限公司 | A kind of scavenging flowing test system |
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2018
- 2018-10-31 CN CN201821783675.8U patent/CN208902414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084985A (en) * | 2018-10-31 | 2018-12-25 | 中船动力研究院有限公司 | A kind of scavenging flowing test system |
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