CN201096615Y - Pressure wave supercharger performance measurement system - Google Patents
Pressure wave supercharger performance measurement system Download PDFInfo
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- CN201096615Y CN201096615Y CNU2007201900879U CN200720190087U CN201096615Y CN 201096615 Y CN201096615 Y CN 201096615Y CN U2007201900879 U CNU2007201900879 U CN U2007201900879U CN 200720190087 U CN200720190087 U CN 200720190087U CN 201096615 Y CN201096615 Y CN 201096615Y
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Abstract
Disclosed is a gas wave supercharger performance testing system which belongs to the internal-combustion engine field. The performance testing system for the gas wave supercharger is not established. The gas wave supercharger performance testing system comprises a gas wave supercharger; the stator of the gas wave supercharger comprises an inlet of high-temperature high-pressure gas, a pressurized air outlet, an outlet of low-temperature low-pressure gas and a fresh air inlet; a rotor is driven by a motor; the gas wave supercharger performance testing system is characterized in that an air compressor (14) is connected with an electric heater (13); a high-temperature end connecting pipe (19) is arranged between the electric heater and the inlet of high-temperature high-pressure gas; a temperature sensor of high-temperature gas (9) and a pressure sensor of high-pressure gas (10) are connected with the high-temperature end connecting pipe; an air damper (8) is arranged on the pressurized air outlet; an air inlet end connecting pipe (20) is arranged between the air damper and the pressurized air outlet; an air-flow meter (7), an inlet gas temperature sensor (15) and an inlet gas pressure sensor (16) are arranged on the air inlet end connecting pipe; the data of all the sensors are inputted into a computer (12) through a data acquisition card (11). The gas wave supercharger performance testing system realizes the measurement of the parameters under the operating conditions of different rotating speeds and different opening degrees of the air damper.
Description
Technical field
The utility model relates to the system that is used to carry out pressure wave supercharger performance test, be mainly used in the high-energy suction parameter of wave pressure supercharger is analyzed its Effect on Performance, and then to wave pressure supercharger performance optimization is carried out in the practical application on vehicular engine, belong to field of internal combustion engine, be specially the research field of supercharger.
Background technology
Domestic and international existing wave pressure supercharger research mainly is the coupling research of wave pressure supercharger on diesel engine and gasoline engine.Set up special performance test system at present as yet at wave pressure supercharger.In order further to further investigate the performance of wave pressure supercharger, need to make up pressure wave supercharger performance test system, with the NE BY ENERGY TRANSFER and the flow condition of research wave pressure supercharger inside.
The utility model content
The purpose of this utility model is further to further investigate the performance of wave pressure supercharger, has built wave device supercharger performance test system.
Design test system fundamental block diagram is seen accompanying drawing 1.Wave pressure supercharger mainly is made up of two parts: stator and rotor 5, stator have four gateways, wherein two high-pressure sides, i.e. high temperature and high pressure gas inlet 3, pressurized air outlet 2; Two low pressure ends, i.e. low-temp low-pressure gas vent 4 and fresh air inlet 1.When wave pressure supercharger is worked, from the exhaust of cylinder and new charge in wave pressure supercharger inside, it is wave pressure supercharger rotor 5, directly contact, because the rotor rotation, rotor cycle ground and stator openings UNICOM, disconnection produce a series of waves (wave of compression and rarefaction wave) like this, come self-purging energy just to realize NE BY ENERGY TRANSFER, finally make admission pressure raise by these a series of waves.
Wave pressure supercharger is that the bent axle by engine drives when using on engine.On test macro, adopt a variable-frequency motor 6 to drive wave pressure supercharger rotor 5, come transmission by belt between motor and rotor, regulate the rotating speed that the variable-frequency motor frequency can be regulated wave pressure supercharger.
The wave pressure supercharger course of work is comparatively complicated, and the parameter of various inlets, outlet is more, and for wave pressure supercharger, the impact effect of the parameter of the High Temperature High Pressure end of wave pressure supercharger is greater than the impact effect of the parameter of the outlet of low-temp low-pressure end and porch.In order to realize the high-temperature high-pressure state of High Temperature High Pressure inlet end 3, at first adopt an air compressor 14 to give air pressurized, and with 13 pairs of air heat of electric heater.Designed temperature end connecting pipe 19 between electric heater 13 and High Temperature High Pressure inlet end 3, connecting pipe not only only couples together wave pressure supercharger and electric heater, and can realize the installation of hot-gas temperature sensor 9 and high-pressure gas pressure sensor 10.
In order to measure the parameter of pressurized air end, export 2 places at pressurized air, use air flowmeter 7 to measure the flow of super charge, what this flowmeter adopted is the vehicle mounted air flowmeter.Enter the state of engine in order to simulate pressurized air, air throttle 8 has been installed in pressurized air outlet 2.In order to connect the installation of air throttle, air flowmeter and temperature sensor, pressure transducer, designed inlet end connecting pipe 20, this connecting pipe has connected air throttle and air flowmeter, and intake air temperature sensor 15 and air inlet pressure sensor 16 are installed on this connecting pipe simultaneously.
The utility model provides a kind of pressure wave supercharger performance test system, comprise wave pressure supercharger, wave pressure supercharger mainly is made up of two parts: stator and rotor 5, stator have four gateways, wherein two high-pressure sides, i.e. high temperature and high pressure gas inlet 3, pressurized air outlet 2; Two low pressure ends, i.e. low-temp low-pressure gas vent 4 and fresh air inlet 1; Adopt a variable-frequency motor 6 to drive wave pressure supercharger rotor 5;
It is characterized in that: air compressor 14 connects electric heater 13; Between electric heater 13 and High Temperature High Pressure inlet end 3, designed temperature end connecting pipe 19; Hot-gas temperature sensor 9 and high-pressure gas pressure sensor 10 are connected on the temperature end connecting pipe 19;
Low-temp low-pressure gas vent 4 connects cold-gas temperature sensor 18;
Hot-gas temperature sensor 9, high-pressure gas pressure sensor 10, cold-gas temperature sensor 18, the data that intake air temperature sensor 15, air inlet pressure sensor 16 are gathered are input in the computing machine 12 by capture card 11.
Further: air throttle 8 connects the engine load sensor 17 of measuring throttle opening; The data that engine load sensor 17 is gathered are input in the computing machine 12 by capture card 11;
Rotate rotary handle 28 connecting screw rods 21; Fixed connection iron wire 23 on the slide block 22, the other end of iron wire is fixed on the throttle adjustment bar 24, and throttle adjustment bar 24 connects air throttle 8.
Opening, close mainly of air throttle realizes by screw rod slide block mechanism (see figure 2), measures throttle opening by engine load sensor 17 simultaneously.Screw rod slide block mechanism critical piece is screw rod 21 and slide block 22, has fixed two stop blocks on mounting platform 27: screw rod stop block 25 and maximum throttle opening stop block 26, and rotating rotary handle 28 can be so that screw rod 21 rotates, and slide block 22 is enclosed within on the screw rod.When screw rod rotated, because the fixing of screw rod stop block 25 arranged, screw rod can not travel forward, and the screw rod top shoe is stressed to move forward and be sleeved on.During the counter-rotation rotary handle, slide block moves round about, can realize that by the screw rod slide block mechanism slide block moves between two stop blocks.Fixed connection iron wire 23 on the slide block 22, the other end of iron wire is fixed on the throttle adjustment bar 24, and adjuster bar links to each other with air throttle, and adjuster bar rotates and drives air throttle 8 rotations.Like this, when regulating rotary handle 28, screw rod 21 rotating band movable sliders 22 move, and slide block affects and connects iron wire 23, make finally to make 24 interlocks of throttle adjustment bar air throttle 8 rotate, thereby change throttle opening.
Because the gas that flows in fresh air inlet 1 is fresh air, there is no need to install special temperature sensor and pressure transducer.Parameter at the low-temp low-pressure gas vent is less to the influence of wave pressure supercharger, therefore, cold-gas temperature sensor 18 only has been installed, not the setting pressure sensor.
The data of all temperature sensors, pressure transducer, flowmeter collection are by capture card 11 and by self-editing VB capture program record test figure and be input in the computing machine 12.
The course of work of this test macro mainly is: at first pre-thermoelectric heater, when air themperature meets the requirements of temperature, start air compressor, starter motor drives wave pressure supercharger and rotates, regulate rotating speed of motor and make wave pressure supercharger rotating speed respective change, after treating temperature, pressure stability, under different wave pressure supercharger rotating speeds, measure each parameter.
The advantage of this test macro has:
● can test the performance of wave pressure supercharger independently;
● can control the parameter of wave pressure supercharger inlet end: pressure and temperature, the variation of investigating the inlet end parameter is to the wave pressure supercharger Effect on Performance;
● the rotating speed of wave pressure supercharger is adjustable;
● process of the test can be observed test figure in real time by acquisition software;
● pilot system has movability, dirigibility.
Description of drawings
Fig. 1 pressure wave supercharger performance test system sketch
Fig. 2 throttle opening is regulated with screw rod slide block mechanism synoptic diagram
Fig. 3 pressure wave supercharger performance test system mounting platform sketch
Fig. 4 wave pressure supercharger mounting bracket structure diagram
Fig. 5 wave pressure supercharger, motor scheme of erection
Fig. 6 temperature end connecting pipe sketch
Fig. 7 inlet end connecting pipe sketch
Among the figure:
The 1-fresh air inlet, the outlet of 2-pressurized air, 3-high temperature and high pressure gas inlet, 4-low-temp low-pressure gas vent, the 5-rotor, 6-motor, 7-air flowmeter, the 8-air throttle, 9-hot-gas temperature sensor, 10-high-pressure gas pressure sensor, 11-capture card, the 12-computing machine, the 13-electric heater, 14-air compressor, 15-intake air temperature sensor, the 16-air inlet pressure sensor, the 17-engine load sensor, 18-cold-gas temperature sensor, 19-temperature end connecting pipe, 20-inlet end connecting pipe, the 21-screw rod, the 22-slide block, 23-connects iron wire, 24-throttle adjustment bar, 25-screw rod stop block, the maximum throttle opening stop block of 26-, 27-mounting platform, the 28-rotary handle, 29-motor mounting groove, 30-wave pressure supercharger mounting groove, 31-platform mounting hole, the 32-mounting bracket, the 33-wave pressure supercharger, 34-connects the wave pressure supercharger flange, and 35-connects the electric heater flange, 36-hot-gas temperature sensor mounting hole, 37-high-pressure gas pressure sensor mounting hole, 38-connects the air throttle flange, and 39-connects the air flowmeter flange, 40-air inlet pressure sensor mounting hole, 41-intake air temperature sensor mounting hole
Embodiment
Describe the utility model in detail below in conjunction with Fig. 1～7.
Present embodiment mainly is made up of wave pressure supercharger 33, motor 6, electric heater 13, air compressor 14, air throttle 8.Wave pressure supercharger is that the bent axle by engine drives when using on engine.On test macro, adopt a variable-frequency motor 6 to drive wave pressure supercharger rotor 5, come transmission by belt between motor and rotor, the transmission speed ratio of design is 4.2.Regulate the rotating speed that the variable-frequency motor frequency can be regulated wave pressure supercharger.Because wave pressure supercharger rotating speed very high (up to commentaries on classics up to ten thousand), the while motor is high speed rotating also, can steady running in the time of guaranteeing its rotation when wave pressure supercharger and motor are installed.On mounting platform 27, designed twice motor mounting groove 29, twice wave pressure supercharger mounting groove 30 respectively, and the wave pressure supercharger mounting groove is vertical mutually with the motor mounting groove, sees Fig. 2.Can conveniently regulate the position of wave pressure supercharger and motor by this four roads mounting groove, be convenient to regulate belt simultaneously, guarantee the transmission speed ratio of wave pressure supercharger and motor.Simultaneously designed a plurality of platform mounting holes 31 and be used for fixing other support and components and parts at mounting platform 27.It mainly is to be connected with the intake and exhaust manifold of engine and to be fixed on the body of engine by each gateway that wave pressure supercharger is installed on the engine; But on test macro, need the design and installation support to fix wave pressure supercharger.Cylindrical according to the wave pressure supercharger rotor has designed mounting bracket, and wave pressure supercharger 33 supports by two cover mounting brackets, 32 (see figure 4)s, and mounting bracket is connected and fixed and supports wave pressure supercharger by bolt; Simultaneously, by bolt support is connected (see figure 5) with mounting platform 27, wave pressure supercharger just is fastened on the mounting platform by mounting bracket like this.Motor 6 is also by being bolted on the mounting platform, and is connected with wave pressure supercharger 33 by belt, controls wave pressure supercharger 33 rotating speeds by the rotating speed of regulating motor 6.The installation effect of last wave pressure supercharger and motor is seen Fig. 5.
The wave pressure supercharger course of work is comparatively complicated, and the parameter of various inlets, outlet is more, and for wave pressure supercharger, the impact effect of the parameter of the high-pressure side of wave pressure supercharger is greater than the impact effect of the parameter of the outlet of low pressure end and porch.In order to realize the high-temperature high-pressure state of high pressure entry end, at first adopt an air compressor 14 to give air pressurized, it is 2 atmospheric pressure that air compressor can keep air pressure; And with 13 pairs of air heat of electric heater, the maximum temperature of electric heater design can reach 800 ℃, and electric heater can be to air heat and by attemperating unit control temperature, and heating-up temperature shows by panel board.For electric heater and wave pressure supercharger are coupled together, designed temperature end connecting pipe 19, see Fig. 6.High temperature connecting pipe 19 two ends are flange, and an end connects wave pressure supercharger high temperature and high pressure gas inlet 3, and the other end connects electric heater, in the middle of the connecting pipe two mounting holes is arranged, and hot-gas temperature sensor 9 and high-pressure gas pressure sensor 10 are installed respectively.Because used gas pressure sensor can not be operated in excessive temperature, so high-pressure gas pressure sensor mounting hole 37 extends 50mm from connecting pipe, avoided like this from the infringement to gas pressure sensor of the high-temperature gas of well heater.
At the super charge end, pressurized air endpiece 2 is connected with air flowmeter 7, adopts the method that is flexible coupling, and promptly uses corrugated tube with two pipeline UNICOMs.Enter the state of engine in order to simulate pressurized air, air throttle 8 has been installed,, designed inlet end connecting pipe 20, see Fig. 7 in order to connect the installation of air throttle, air flowmeter and temperature sensor, pressure transducer at super charge end 2.Connecting pipe two end flanges, an end connects air throttle, and the other end connects air flowmeter, has two mounting holes that intake air temperature sensor 15, air inlet pressure sensor 16 are installed respectively in the middle of the connecting pipe.The adjusting of throttle opening realizes by the screw rod slide block mechanism, and this mechanism can realize the adjusting of throttle opening from 0～100%.
Bore a hole and welded one section short tube at the low-temp low-pressure gas outlet end 4 of wave pressure supercharger and be used for mounting temperature sensor 18.
All parts, the sensors of test macro are all installed concentratedly on mounting platform 27, and mounting platform has been installed four rolling by being bolted on the tressel on tressel, make whole test system have movability like this.
Utilize said apparatus to carry out following test, the hardware connection layout of the pressure wave supercharger performance test system that its process of the test is taked as shown in Figure 1.At first pre-thermoelectric heater, the temperature of electric heater is adjustable, reaches as high as 800 ℃; Start air compressor, it is the air of 3atm that air compressor can provide top pressure; Starter motor drives wave pressure supercharger and rotates, and regulates rotating speed of motor and makes the wave pressure supercharger rotating speed gradually change from low to high: 3000rpm, 5000rpm, 7000rpm, 9000rpm, 10000rpm, 12000rpm, 15000rpm, 17000rpm, 20000rpm.After treating temperature, pressure stability, measuring each parameter under the different wave pressure supercharger rotating speeds, under the different solar terms door aperture operating mode.
Pressure wave supercharger performance test system can carry out the test under the rotating ratio (being different wave pressure supercharger rotating speeds), different heating temperature, different pressures, different solar terms door aperture operating mode of different motors and wave pressure supercharger, measures pressure, temperature, the flow of each port under the different operating modes.Test findings shows, for wave pressure supercharger, temperature, pressure and the wave supercharger speed of High Temperature High Pressure porch 3 (being the fire end in the pilot system) has bigger influence to the parameter of endpiece (being pressurized air end 2 in the pilot system), therefore, make wave pressure supercharger bring into play best performance, the rotating speed of control wave pressure supercharger is crucial.Simultaneously, not running off of the energy of maintenance wave pressure supercharger inlet end 3 promptly keeps higher temperature and pressure, helps wave pressure supercharger and plays a role.
Claims (2)
1, a kind of pressure wave supercharger performance test system, comprise wave pressure supercharger, wave pressure supercharger mainly is made up of two parts: stator and rotor (5), stator have four gateways, wherein two high-pressure sides, i.e. high temperature and high pressure gas inlet (3), pressurized air outlet (2); Two low pressure ends, i.e. low-temp low-pressure gas vent (4) and fresh air inlet (1); Adopt a variable-frequency motor (6) to drive wave pressure supercharger rotor (5);
It is characterized in that: air compressor (14) connects electric heater (13); Between electric heater (13) and High Temperature High Pressure inlet end (3), designed temperature end connecting pipe (19); Hot-gas temperature sensor (9) and high-pressure gas pressure sensor (10) are connected on the temperature end connecting pipe (19);
Air throttle (8) has been installed in pressurized air outlet (2), between air throttle (8) and pressurized air outlet (2), designed inlet end connecting pipe (20), inlet end connecting pipe (20) connects air flowmeter (7), and intake air temperature sensor (15) and air inlet pressure sensor (16) are installed on this connecting pipe simultaneously;
Low-temp low-pressure gas vent (4) connects cold-gas temperature sensor (18);
Hot-gas temperature sensor (9), high-pressure gas pressure sensor (10), cold-gas temperature sensor (18), the data that intake air temperature sensor (15), air inlet pressure sensor (16) are gathered are input in the computing machine (12) by capture card (11).
2, pressure wave supercharger performance test system according to claim 1 is characterized in that:
Air throttle (8) connects the engine load sensor (17) of measuring throttle opening; The data that engine load sensor (17) is gathered are input in the computing machine (12) by capture card (11);
Air throttle (8) connects the screw rod slide block mechanism of opening, closing that is used to realize air throttle; Described screw rod slide block mechanism comprises screw rod (21) and slide block (22), and slide block (22) is enclosed within on the screw rod (21); On mounting platform (27), fixed two stop blocks: screw rod stop block (25) and maximum throttle opening stop block (26),
Rotate rotary handle (28) connecting screw rod (21); Fixed connection iron wire (23) on the slide block (22), the other end of iron wire is fixed on the throttle adjustment bar (24), and throttle adjustment bar (24) connects air throttle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900879U CN201096615Y (en) | 2007-11-09 | 2007-11-09 | Pressure wave supercharger performance measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900879U CN201096615Y (en) | 2007-11-09 | 2007-11-09 | Pressure wave supercharger performance measurement system |
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| CN201096615Y true CN201096615Y (en) | 2008-08-06 |
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| CNU2007201900879U Expired - Lifetime CN201096615Y (en) | 2007-11-09 | 2007-11-09 | Pressure wave supercharger performance measurement system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149309B (en) * | 2007-11-09 | 2010-06-09 | 北京工业大学 | Pressure wave supercharger performance test system |
| CN103925958A (en) * | 2014-05-07 | 2014-07-16 | 湖南天雁机械有限责任公司 | Method and device for detecting blowby gas amount of oil outlet hole of turbocharger |
-
2007
- 2007-11-09 CN CNU2007201900879U patent/CN201096615Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149309B (en) * | 2007-11-09 | 2010-06-09 | 北京工业大学 | Pressure wave supercharger performance test system |
| CN103925958A (en) * | 2014-05-07 | 2014-07-16 | 湖南天雁机械有限责任公司 | Method and device for detecting blowby gas amount of oil outlet hole of turbocharger |
| CN103925958B (en) * | 2014-05-07 | 2018-02-02 | 湖南天雁机械有限责任公司 | Turbocharger oil outlet air leak amount detection method and device |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080806 Effective date of abandoning: 20071109 |