CN1749722A - Measuring test table for turbocharger friction power - Google Patents
Measuring test table for turbocharger friction power Download PDFInfo
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- CN1749722A CN1749722A CN 200510114348 CN200510114348A CN1749722A CN 1749722 A CN1749722 A CN 1749722A CN 200510114348 CN200510114348 CN 200510114348 CN 200510114348 A CN200510114348 A CN 200510114348A CN 1749722 A CN1749722 A CN 1749722A
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- turbocharger
- oil
- friction
- measuring test
- moment
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 claims description 23
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The present invention relates to mechanical technology, and is one measuring test bed for measuring the friction power of turbocharger. The measuring test bed includes nozzle to drive the turbocharger, solenoid valve to open and shut off compressed gas, compressed gas pipeline, gas tank, magnetoelectric rotation speed sensor for detecting rotation speed signal, signal line, A/D converter, computer for data processing, oil pipe for supplying lubricant oil, oil returning pipe, oil tank and oil temperature and pressure maintaining system. The measuring test bed measures the friction power of turbocharger on the principle that when the turbocharger rotor is not acted by other external moment, the friction moment is the unique cause to lead in the rotation speed change, and the friction moment and the friction work may be calculated according to the change rate of the rotation speed of the turbocharger rotor with time.
Description
Technical field
The present invention is a measuring test table for turbocharger friction power, relates to mechanical field.This testing table can be used for the measurement to turbocharger friction power of supercharger factory or supercharger research unit.
Background technology
As shown in Figure 1, the rotor of turbosupercharger at present for vehicle turbocharger, is generally two floating bearings and a thrust bearing by bearings.Also there is supercharger to adopt other bearing type such as semifloating bearing, ball bearing, air bearing etc.But no matter adopt which kind of bearing, because the existence of moment of friction, bearing has all consumed a part of power.
The total efficiency of the frictional work affects supercharger of supercharger.A lot of producers and research institution attempt using the bearing of dissimilar and structure, to reduce the frictional work of supercharger.But, also do not have the means and the method for suitable measurement supercharger friction horsepower at present, so just lack guidance to the supercharger structure design yet.
Some research attempts importing and exporting according to supercharger lubricating oil the variation of oil temperature, according to thermally equilibrated principle, calculates friction horsepower.But this exists flow of lubrication and temperature is difficult for measuring accurately, and lubricating oil oil temperature is subject to problems such as External Heat Flux influence.And, there is not special-purpose testing table yet, generally be on the testing table of measuring the supercharger flow characteristics, to carry out.
Through to the domestic and foreign literature retrieval, do not find to be specifically designed to the relevant document of measuring the turbocharger friction power testing table.
Summary of the invention
A kind of testing table that is used to measure turbocharger friction power that The present invention be directed to above-mentioned situation and provide.Testing table is provided with air-blast atomizer, this nozzle links to each other with gas tank by solenoid valve, pressure gas pipeline, magnetoelectric tachometric transducer is loaded on the tested supercharger, and link to each other with computing machine by A/D conversion, signal wire, testing table is provided with fuel tank and oily temperature oil pressure safeguards system, and links to each other with oil inlet pipe, scavenge pipe respectively.Principle of work of the present invention is when supercharger rotor is not subjected to other external moment loading, and moment of friction is the sole cause that causes its rotation speed change.Therefore, can calculate the size of moment of friction, thereby calculate frictional work according to supercharger rotor rotating speed rate over time.
Description of drawings
Fig. 1 is the sectional view of turbosupercharger
Fig. 2 is the principle schematic of turbo-charger bearing friction horsepower measuring test-bed
Fig. 3 is the time dependent synoptic diagram of turbocharger rotor rotating speed
Among the figure: thrust bearing 1, floating bearing 2 and 3, compressor casing 4, band magnetic nut 5, compressor impeller 6, bearing body oil return opening 7, turbine wheel 8, scavenge pipe 9, fuel tank and oily temperature oil pressure safeguards system 10, air-blast atomizer 11, solenoid valve 12, pressure gas pipeline 13, gas tank 14, oil inlet pipe 15, computing machine 16, A/D conversion 17, signal wire 18, magnetoelectric tachometric transducer 19.
The present invention will be further described below in conjunction with accompanying drawing:
Testing table is provided with air-blast atomizer 11, nozzle 11 links to each other with gas tank 14 by solenoid valve 12, pressure gas pipeline 13, magnetoelectric tachometric transducer 19 is loaded on the tested supercharger, and link to each other with computing machine 16 by A/D conversion 17, signal wire 18, testing table is provided with fuel tank and oily temperature oil pressure safeguards system 10, and links to each other with oil inlet pipe 15, scavenge pipe 9 respectively; The import oil pressure of lubricating oil should be controlled at 0.3 ± 0.02MPa, and import oil temperature should be controlled in 70 ± 2 ℃ of scopes; Be used for locking the nut of compressor impeller 6 for being with magnetic nut 5.
When carrying out the friction horsepower measurement, tested supercharger is installed on the testing table.Grease-box and oily temperature oil pressure safeguards system 10 are by the bearing supplying lubricating oil of oil inlet pipe 15 to supercharger.Because lubricating oil oil temperature influences oil viscosity, thereby influences the size of moment of friction, and oil pressure also can exert an influence to the size of moment of friction.So the oily gentle oil pressure of lubricating oil is controlled in certain scope, with accuracy and the repeatability that guarantees to measure.After lubricating oil was supplied with bearing, through bearing body oil return opening 7, scavenge pipe 9 returned fuel tank and oily temperature oil pressure safeguards system 10, after the lubricating oil normal supply, just can start supercharger rotor.At this moment, open solenoid valve 12, the pressurized air in the gas tank 14 by solenoid valve 12, arrives nozzle 11 by pressure gas pipeline 13 then.Pressure gas penetrates from air-blast atomizer 11 with higher flow velocity, and the turbine wheel 8 of impulse turbine supercharger, turbine wheel 8 are under the effect of pressure gas, and the beginning quick rotation is rotated thereby drive compressor impeller 6.Be used for locking the nut 5 of compressor impeller 6, before testing, be magnetized, be the band magnetic nut, during 5 rotations of band magnetic nut, tach signal can be magnetic, at this moment, the magnetoelectric tachometric transducer 19 that is installed on the compressor casing 4 will obtain tach signal, and tach signal arrives computing machine 16 through A/D conversion 17.After the stabilization of speed of supercharger, start test process.Close solenoid valve 12, cut off pressure gas, computing machine 16 begins to gather tach signal.Can think that the rotating speed of the rotor of turbosupercharger only is subjected to the influence of moment of friction at this moment.
According to the moment of momentum theorem,, can list equation (1) to the supercharger rotor of this moment.
Wherein, M
fBe the suffered moment of friction of supercharger rotor; I
0Moment of inertia for rotor; ω is the angular velocity of rotor; N is the supercharger rotor rotating speed; T is the time.
According to equation (1), if the moment of inertia of known rotor, and the rotating speed of known supercharger rotor rate over time
Just can obtain moment of friction M
fThe moment of inertia of rotor can be found the solution according to correlative formula of science by the quality of weighing rotor.And the rotating speed of supercharger rotor rate over time
Can obtain by the curve of Fig. 3 is differentiated.Therefore, after obtaining Fig. 3, just can obtain moment of friction M by test
fMoment of friction M
fAfter obtaining, just can obtain friction horsepower according to equation (2).
N
f＝M
fω＝2πnM
f (2)
Wherein, N
fBe turbocharger friction power.
In equation (2), supercharger speed n can determine according to Fig. 3.
The drafting of figure (3), finding the solution by computing machine 16 and institute's installed software thereof of equation (1) and equation (2) undertaken.
So far, finish the test process of turbocharger friction power.
Claims (3)
1. measuring test table for turbocharger friction power that mainly is made of nozzle, solenoid valve, pressure gas pipeline, gas tank, speed probe, fuel tank is characterized in that:
A.) testing table is provided with air-blast atomizer, and this nozzle links to each other with gas tank by solenoid valve, pressure gas pipeline, and this nozzle is used for driving supercharger rotor.
B.) magnetoelectric tachometric transducer is loaded on the tested supercharger, and links to each other with computing machine by A/D conversion, signal wire,
C.) testing table is provided with fuel tank and oily temperature oil pressure safeguards system, and links to each other with oil inlet pipe, scavenge pipe respectively;
2. by the described measuring test table for turbocharger friction power of claim 1, it is characterized in that the import oil pressure of lubricating oil should be controlled at 0.3 ± 0.02MPa, import oil temperature should be controlled in 70 ± 2 ℃ of scopes;
3. by the described measuring test table for turbocharger friction power of claim 1, it is characterized in that being used for locking the nut of compressor impeller for being with magnetic nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101143484A CN1316236C (en) | 2005-10-24 | 2005-10-24 | Measuring test table for turbocharger friction power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101143484A CN1316236C (en) | 2005-10-24 | 2005-10-24 | Measuring test table for turbocharger friction power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1749722A true CN1749722A (en) | 2006-03-22 |
| CN1316236C CN1316236C (en) | 2007-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101143484A Expired - Fee Related CN1316236C (en) | 2005-10-24 | 2005-10-24 | Measuring test table for turbocharger friction power |
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Cited By (9)
| 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 |
| CN101833012A (en) * | 2010-04-29 | 2010-09-15 | 中国燃气涡轮研究院 | Turbocharger rotational speed measuring instrument and method |
| CN101149308B (en) * | 2007-11-01 | 2010-11-10 | 北京理工大学 | Turbine supercharger property test platform with assistant braking system |
| CN102401044A (en) * | 2011-10-24 | 2012-04-04 | 宁波市鸿腾机电有限公司 | Automatic reset disc type brake |
| CN103063862A (en) * | 2012-12-26 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Non-contact type supercharger rotate speed testing device |
| CN104122019A (en) * | 2014-07-23 | 2014-10-29 | 上汽通用五菱汽车股份有限公司 | Engine subsystem friction work measuring method |
| CN106248278A (en) * | 2016-07-25 | 2016-12-21 | 宁波威孚天力增压技术有限公司 | A kind of axial force measuring system of turbocharger and method of testing thereof |
| CN110307145A (en) * | 2019-07-15 | 2019-10-08 | 重庆交通大学 | A kind of rotary blade type compressor friction horsepower test macro and test method |
| CN112014630A (en) * | 2020-09-07 | 2020-12-01 | 青岛万宝压缩机有限公司 | Device and method for testing friction loss of compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19963279B4 (en) * | 1999-12-27 | 2014-01-23 | Harmonic Drive Systems Inc. | Method for determining an output torque of a drive device and drive device |
| CN2486961Y (en) * | 2001-06-29 | 2002-04-17 | 王国梁 | Sport power display of magnetic control sport equipment |
| CN2674420Y (en) * | 2004-02-18 | 2005-01-26 | 韩晓明 | Monitor for on-vehicle engine power |
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2005
- 2005-10-24 CN CNB2005101143484A patent/CN1316236C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149308B (en) * | 2007-11-01 | 2010-11-10 | 北京理工大学 | Turbine supercharger property test platform with assistant braking system |
| CN101149309B (en) * | 2007-11-09 | 2010-06-09 | 北京工业大学 | Pressure wave supercharger performance test system |
| CN101833012A (en) * | 2010-04-29 | 2010-09-15 | 中国燃气涡轮研究院 | Turbocharger rotational speed measuring instrument and method |
| CN101833012B (en) * | 2010-04-29 | 2012-05-23 | 中国燃气涡轮研究院 | Turbocharger rotational speed measuring instrument and method |
| CN102401044A (en) * | 2011-10-24 | 2012-04-04 | 宁波市鸿腾机电有限公司 | Automatic reset disc type brake |
| CN103063862A (en) * | 2012-12-26 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Non-contact type supercharger rotate speed testing device |
| CN104122019A (en) * | 2014-07-23 | 2014-10-29 | 上汽通用五菱汽车股份有限公司 | Engine subsystem friction work measuring method |
| CN104122019B (en) * | 2014-07-23 | 2017-10-10 | 上汽通用五菱汽车股份有限公司 | A kind of measuring method of engine subsystems frictional work |
| CN106248278A (en) * | 2016-07-25 | 2016-12-21 | 宁波威孚天力增压技术有限公司 | A kind of axial force measuring system of turbocharger and method of testing thereof |
| CN106248278B (en) * | 2016-07-25 | 2019-01-15 | 宁波威孚天力增压技术有限公司 | A kind of turbocharger axial direction force measuring system and its test method |
| CN110307145A (en) * | 2019-07-15 | 2019-10-08 | 重庆交通大学 | A kind of rotary blade type compressor friction horsepower test macro and test method |
| CN112014630A (en) * | 2020-09-07 | 2020-12-01 | 青岛万宝压缩机有限公司 | Device and method for testing friction loss of compressor |
| CN112014630B (en) * | 2020-09-07 | 2023-06-23 | 青岛万宝压缩机有限公司 | Device and method for testing friction loss of compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1316236C (en) | 2007-05-16 |
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