CN205262756U - High nip drum stream of engine test device that admits air - Google Patents
High nip drum stream of engine test device that admits air Download PDFInfo
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- CN205262756U CN205262756U CN201521095713.7U CN201521095713U CN205262756U CN 205262756 U CN205262756 U CN 205262756U CN 201521095713 U CN201521095713 U CN 201521095713U CN 205262756 U CN205262756 U CN 205262756U
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Abstract
The utility model relates to an engine high -pressure air inflow rolls a class test device, pressure sensor 10, simulation cylinder 11, the 12, the 3rd pressure -stabilizing box 13 of blade anemoscope, fourth pressure -stabilizing box 14, export air -vent valve 15 in the 1, the 1st pressure -stabilizing box 2 of compressor, import air -vent valve 3, the 4, the 2nd pressure -stabilizing box 5 in the flowmeter, air flue pressure sensor 6, lift sensor 7, valve lift guiding mechanism 8, the cylinder cap 9 that awaits measuring, jar, engine high -pressure air inflow rolls class test device can roll that flow and the change rule and the influence factor of negotiability carry out the experimental study to the gasoline engine intake duct under the high intake pressure. The utility model discloses it rolls a class testing method still to relate to an engine high -pressure air inflow.
Description
Technical field
The invention belongs to technical field of engines, be specifically related to a kind of engine high pressure and roll and flow to gas experimental rig.
Background technology
Formation and the combustion process of internal combustion engine In Cylinder Flow on gaseous mixture has conclusive impact, directly affects dynamic property, economy and other characteristics of internal combustion engine. And In Cylinder Flow is affected by air flue mobile performance to a great extent. Therefore Design of Inlet is very important.
Port Steady Flow experimental rig is the experimental rig of current industrial the most frequently used overall merit inlet duct flow dynamic characteristic. Existing steady flow air flue test device, is mainly made up of air exhauster, vacuum breaker, pressurizer tank, simulation cylinder sleeve, ededy current gauge and flowmeter. Measure to adopt and determine pressure differential method, admission pressure is atmospheric pressure, keeps airway pressure to reduce to a steady state value, and maximum differential pressure can only reach 6kPa. And adopt paddle wheel anemometer to measure eddy current.
The evolution of gasoline engine is to supercharging by natural aspiration, naturally aspirated rolls the experiment condition and naturally aspirated petrol engine air admission term harmonization of stream experimental bench, along with the application of supercharging technology on gasoline engine, the experiment condition of air flue and gasoline engine time of day gap strengthen. And the pressurization of gasoline engine is at the future development to high pressure-charging constantly, and the experiment condition of air flue and gasoline engine time of day gap can be increasing. In order to obtain the air flue parameter consistent with true air-suction state, need to study by experiment rolling of high pressure admission state downtake and flow ratio and circulation coefficient.
Therefore, be necessary to test under high pressure admission condition, study dissimilar air intake duct and under high admission pressure, roll stream and Changing Pattern and the influence factor of negotiability.
Summary of the invention
The present invention is directed to petrol engine air admission that prior art exists and roll stream and be difficult to the problem of measuring, provide a kind of engine high pressure of the super charge system that adapts to gasoline engine to roll and flow to gas experimental rig.
Technical scheme of the present invention is: stream experimental rig is rolled in a kind of engine high pressure air inlet, comprise compressor 1, the first pressurizer tank 2, import pressure regulator valve 3, flowmeter 4, the second pressurizer tank 5, airway pressure sensor 6, lift range sensor 7, valve stroke guiding mechanism 8, cylinder cap 9 to be measured, in-cylinder pressure sensor 10, simulation cylinder 11, paddle wheel anemometer 12, the 3rd pressurizer tank 13, the 4th pressurizer tank 14, outlet pressure regulator valve 15, it is characterized in that: cylinder cap 9 to be measured is arranged on simulation cylinder 11, valve stroke guiding mechanism 8 is arranged on cylinder cap 9 to be measured, before the airintake direction of cylinder cap 9 to be measured, there is pipeline to connect the second pressurizer tank 5, on the pipeline between cylinder cap 9 to be measured and the second pressurizer tank 5, airway pressure sensor 6 is installed, before the airintake direction of the second pressurizer tank 5, there is pipeline to connect the first pressurizer tank 2, on the pipeline between the first pressurizer tank 2 and the second pressurizer tank 5, import pressure regulator valve 3 and flowmeter 4 are installed, compressor 1 is installed before the airintake direction of the first pressurizer tank 2, simulation cylinder 11 is connected with the 3rd pressurizer tank 13, the 3rd pressurizer tank 13 is connected with the 4th pressurizer tank 14, the 4th pressurizer tank 14 communicates with atmosphere by outlet pressure regulator valve 15, in simulation cylinder 11, in-cylinder pressure sensor 10 is installed, in simulation cylinder 11, is provided with to measure and rolls the fast paddle wheel anemometer 12 of circulation.
Beneficial effect of the present invention: the present invention by increasing high-pressure compressor and pressurizer tank before cylinder cap air intake duct, improve admission pressure, the highest admission pressure can reach 500kPa, intake pressure difference can reach 200kPa, reach the air-suction state identical with supercharging gasoline engine, thereby can effectively test, at high pressure, at a high speed, and under the average Mach number of high valve, can rolling of gasoline engine of real simulation test flow to gas. It has the advantages such as simple in structure, convenient for installation and maintenance and can further expand simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present invention:
1 compressor, 2 first pressurizer tanks, 3 import pressure regulator valves, 4 flowmeters, 5 second pressurizer tanks, 6 airway pressure sensors, 7 lift range sensors, 8 valve stroke guiding mechanisms, 9 cylinder caps to be measured, 10 in-cylinder pressure sensors, 11 simulation cylinders, 12 paddle wheel anemometers, 13 the 3rd pressurizer tanks, 14 the 4th pressurizer tanks, 15 outlet pressure regulator valves;
Fig. 2 is the structural representation of the 3rd pressurizer tank:
141 expansion segments, 142 interludes, 143 contraction sections;
Fig. 3 is the structural representation of the second pressurizer tank:
51 are divided into front expansion segment, 52 rear steady flow segments.
Detailed description of the invention
1 pair of the specific embodiment of the present invention is elaborated by reference to the accompanying drawings:
Stream experimental rig is rolled in a kind of engine high pressure air inlet, comprise compressor 1, the first pressurizer tank 2, import pressure regulator valve 3, flowmeter 4, the second pressurizer tank 5, airway pressure sensor 6, lift range sensor 7, valve stroke guiding mechanism 8, cylinder cap 9 to be measured, in-cylinder pressure sensor 10, simulation cylinder 11, paddle wheel anemometer 12, the 3rd pressurizer tank 13, the 4th pressurizer tank 14, outlet pressure regulator valve 15, it is characterized in that: cylinder cap 9 to be measured is arranged on simulation cylinder 11, valve stroke guiding mechanism 8 is arranged on cylinder cap 9 to be measured, before the airintake direction of cylinder cap 9 to be measured, there is pipeline to connect the second pressurizer tank 5, on the pipeline between cylinder cap 9 to be measured and the second pressurizer tank 5, airway pressure sensor 6 is installed, before the airintake direction of the second pressurizer tank 5, there is pipeline to connect the first pressurizer tank 2, on the pipeline between the first pressurizer tank 2 and the second pressurizer tank 5, import pressure regulator valve 3 and flowmeter 4 are installed, compressor 1 is installed before the airintake direction of the first pressurizer tank 2, simulation cylinder 11 is connected with the 3rd pressurizer tank 13, the 3rd pressurizer tank 13 is connected with the 4th pressurizer tank 14, the 4th pressurizer tank 14 communicates with atmosphere by outlet pressure regulator valve 15, in simulation cylinder 11, in-cylinder pressure sensor 10 is installed, in simulation cylinder 11, is provided with to measure and rolls the fast paddle wheel anemometer 12 of circulation.
Air flows into experimental rig by compressor 1, enters simulation cylinder 11, by being discharged to atmosphere after the 4th pressurizer tank 14.
Can improve admission pressure by compressor 1, can regulate pressure before air intake duct by import pressure regulator valve 3, measure pressure before air intake duct by airway pressure sensor 6, can regulate the pressure of simulation in cylinder 11 by outlet pressure regulator valve 15, the pressure by in-cylinder pressure sensor 10 in can measure analog cylinder 11.
Control the pressure of the air intake duct front and back of cylinder cap 9 to be measured by import pressure regulator valve 3 and outlet pressure regulator valve 15, valve stroke guiding mechanism 8 can be controlled valve stroke, flowmeter 4 can record the air intake duct flow of cylinder cap 9 to be measured, paddle wheel anemometer 12 can record and roll circulation speed, also can roll circulation speed with the measurement of moment of momentum tester.
For further reducing to export the interference to the 11 internal pressure fluctuations of simulation cylinder in pressure regulator valve 15 adjustment processes, structure to the 4th pressurizer tank 14 is optimized design, preferably the 4th pressurizer tank 14 is divided into expansion segment 141, interlude 142 and contraction section 143 3 parts, along the air-flow direction of propagation, expansion segment 141 intracavity diameters increase gradually, and interlude 142 intracavity diameters are constant to be dwindled gradually with contraction section 143 intracavity diameters. In the time simulation cylinder 11 internal pressures being adjusted by outlet pressure regulator valve 15, back wave reverse propagation in the 4th pressurizer tank 14, first can effectively eliminate back wave through contraction section 143, reduces to simulate cylinder 11 internal pressure fluctuations.
For further reducing to export the response time to simulation cylinder 11 internal pressures in pressure regulator valve 15 adjustment processes, the structure of the 3rd pressurizer tank 13 is optimized to design, preferably the volume ratio of the 3rd pressurizer tank 13 and the 4th pressurizer tank 14 is 1:5.
For further reducing the pressure oscillation to the second pressurizer tank 5 in import pressure regulator valve 3 adjustment processes, structure to the second pressurizer tank 5 is optimized design, preferably the second pressurizer tank 5 is divided into front expansion segment 51, rear steady flow segment 52 two parts, along the air-flow direction of propagation, front expansion segment 51 intracavity diameters increase gradually, and rear steady flow segment 52 intracavity diameters are constant. In the time the pressure of the second pressurizer tank 5 being adjusted by import pressure regulator valve 3, air-flow first can effectively be eliminated pressure oscillation through front expansion segment 51, reduces the pressure oscillation after the second pressurizer tank 5.
The method of work of stream experimental rig is rolled in a kind of engine high pressure air inlet, it is characterized in that: air is pressurized to 700kPa through compressor 1, then entering volume is the first pressurizer tank 2 of 3000L, then flow through import pressure regulator valve 3 and flowmeter 4, the pressure of the second pressurizer tank 5 is adjusted to 350kPa by import pressure regulator valve 3, then enter air flue and the simulation cylinder 11 of cylinder cap 9 to be measured, then enter the 3rd pressurizer tank 13, flow into the 4th pressurizer tank 14 from the 3rd pressurizer tank 13 again, the pressure of adjusting simulation cylinder 11 inside through outlet pressure regulator valve 15, to 180kPa, finally enters into atmosphere;
Air mass flow is measured by flowmeter 4, and the airway resistance of cylinder cap 9 to be measured is measured by being arranged on the in-cylinder pressure sensor 10 on the airway pressure sensor 6 on pipeline and simulation cylinder 11 before air flue, and the front and back intake pressure difference of the air flue of cylinder cap 9 to be measured is 170kPa;
Circulation speed is rolled in paddle wheel anemometer or the measurement of amount of flow square measuring instrument.
Claims (1)
1. a stream experimental rig is rolled in engine high pressure air inlet, comprises compressor (1), the first pressurizer tank (2), import pressure regulator valve (3), flowmeter (4), the second pressurizer tank (5), airway pressure sensor (6), lift range sensor (7), valve stroke guiding mechanism (8), cylinder cap to be measured (9), in-cylinder pressure sensor (10), simulation cylinder (11), paddle wheel anemometer (12), the 3rd pressurizer tank (13), the 4th pressurizer tank (14), outlet pressure regulator valve (15), it is characterized in that: cylinder cap to be measured (9) is arranged on simulation cylinder (11), valve stroke guiding mechanism (8) is arranged on cylinder cap to be measured (9), before the airintake direction of cylinder cap to be measured (9), there is pipeline to connect the second pressurizer tank (5), on the pipeline between cylinder cap to be measured (9) and the second pressurizer tank (5), airway pressure sensor (6) is installed, before the airintake direction of the second pressurizer tank (5), there is pipeline to connect the first pressurizer tank (2), import pressure regulator valve (3) and flowmeter (4) are installed on the pipeline between the first pressurizer tank (2) and the second pressurizer tank (5), compressor (1) is installed before the airintake direction of the first pressurizer tank (2), simulation cylinder (11) is connected with the 3rd pressurizer tank (13), the 3rd pressurizer tank (13) is connected with the 4th pressurizer tank (14), the 4th pressurizer tank (14) communicates with atmosphere by outlet pressure regulator valve (15), in simulation cylinder (11), in-cylinder pressure sensor (10) is installed, in simulation cylinder (11), is provided with to measure and rolls the fast paddle wheel anemometer (12) of circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095713.7U CN205262756U (en) | 2015-12-25 | 2015-12-25 | High nip drum stream of engine test device that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095713.7U CN205262756U (en) | 2015-12-25 | 2015-12-25 | High nip drum stream of engine test device that admits air |
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| Publication Number | Publication Date |
|---|---|
| CN205262756U true CN205262756U (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521095713.7U Expired - Fee Related CN205262756U (en) | 2015-12-25 | 2015-12-25 | High nip drum stream of engine test device that admits air |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN106404406A (en) * | 2016-10-17 | 2017-02-15 | 西安福赛斯机电科技有限公司 | Aero-engine environment simulation device |
| CN107490484A (en) * | 2016-12-24 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Simulation of engine plateau inlet duct |
| CN107490483A (en) * | 2016-12-24 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Simulation of engine plateau inlet duct |
| CN109781420A (en) * | 2019-03-06 | 2019-05-21 | 中北大学 | A kind of visualization engine high pressure tumble flow air inlet experimental provision |
| CN111076936A (en) * | 2019-12-07 | 2020-04-28 | 武汉安立杰工程技术有限公司 | Engine air inlet test device |
-
2015
- 2015-12-25 CN CN201521095713.7U patent/CN205262756U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN106404406A (en) * | 2016-10-17 | 2017-02-15 | 西安福赛斯机电科技有限公司 | Aero-engine environment simulation device |
| CN107490484A (en) * | 2016-12-24 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Simulation of engine plateau inlet duct |
| CN107490483A (en) * | 2016-12-24 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Simulation of engine plateau inlet duct |
| CN109781420A (en) * | 2019-03-06 | 2019-05-21 | 中北大学 | A kind of visualization engine high pressure tumble flow air inlet experimental provision |
| CN111076936A (en) * | 2019-12-07 | 2020-04-28 | 武汉安立杰工程技术有限公司 | Engine air inlet test device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20160525 Termination date: 20181225 |