CN103196614A - Airway pressure measuring system - Google Patents
Airway pressure measuring system Download PDFInfo
- Publication number
- CN103196614A CN103196614A CN2013100852384A CN201310085238A CN103196614A CN 103196614 A CN103196614 A CN 103196614A CN 2013100852384 A CN2013100852384 A CN 2013100852384A CN 201310085238 A CN201310085238 A CN 201310085238A CN 103196614 A CN103196614 A CN 103196614A
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- airway
- charge amplifier
- pressure
- measuring system
- cylinder cover
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Abstract
The invention relates to an airway pressure measuring system which comprises an airway steady flow test stand (1), a cylinder cover (2), a cylinder barrel (3), a pressure sensor (4), a charge amplifier (5) and a data collecting system (6), wherein the cylinder cover (2) is arranged on the cylinder barrel (3), a station to be measured is arranged on the cylinder cover (2), the pressure sensor (4) is arranged on the station to be measured and arranged on the cylinder cover (2), the pressure sensor (4) is connected with the charge amplifier (5), and the charge amplifier (5) is connected with the data collecting system (6). According to the airway pressure measuring system, the defect that measurement of pressure in an airway can not be achieved according to an airway test stand in the prior art is overcome, the structure is optimized, performance of the airway is improved, total mixing ratio energy of air and fuel is further improved, air-fuel mixture is accelerated, the main combustion period is shortened, high economical efficiency is obtained, and requirements of dynamic characteristics of heavy vehicles are met.
Description
Technical field
The invention belongs to the pressure-measuring system technical field, be specifically related to a kind of airway pressure measuring system.
Background technology
Existing air flue current stabilization test macro is the higher equipment of automaticity, can carry out the performance test of diesel engine entering and exhaust channel, circulation coefficient and swirl ratio.But can't realize the pressure survey in the air flue.Thereby influence combustion system owing to the pressure variation causes the variation in flow field directly to influence the air flue performance, it is inhomogeneous to cause oil gas to mix, and oil can not fully burn, and is less economical, and not environmental protection of exhaust emissions.
Summary of the invention
Technical matters to be solved by this invention will provide a kind of airway pressure measuring system exactly, it has overcome, and air flue test stand can not carry out the deficiency that intra-airway pressure is measured in original technology, make structure optimization, improved the performance of air flue, and then improved air and the total mixing ratio energy of fuel oil, and accelerate oil gas and mix, main combustion period is shortened, obtain good economy, satisfy the requirement of extraordinary heavy vehicle kinematic behavior.
Technical scheme of the present invention: a kind of airway pressure measuring system, it comprises steady flow testbed of air passage 1, cylinder head 2, cylinder barrel 3, pressure transducer 4, charge amplifier 5 and data acquisition system (DAS) 6, cylinder head 2 is arranged on the cylinder barrel 3, and cylinder head 2 is provided with tested station; Pressure transducer 4 is arranged on the tested station of cylinder head 2; Pressure transducer 4 is connected with charge amplifier 5; Charge amplifier 5 is connected with data acquisition system (DAS) 6.
Beneficial effect of the present invention: carry out the improvement design of equipment on the basis of original steady flow testbed of air passage, remedy original air flue test stand and can not carry out the deficiency that intra-airway pressure is measured.Can demarcate by the convection cell analysis software by steady flow testbed pressure survey, simultaneously in conjunction with the fluid software for calculation, analyze the air flue inner structure, grasp the internal relation in pressure and flow field, carry out structure optimization design, thereby the raising air flue
Performance, and then improve air and the total mixing ratio energy of fuel oil, accelerate oil gas and mix, main combustion period is shortened, obtain good economy, satisfy the requirement of extraordinary heavy vehicle kinematic behavior.Simultaneously, the tonometric blank of air passage of internal combustion engine has in the past been filled up in the development of internal combustion engine pressure-measuring system, makes my air flue development aspect, place, has formed the independent intellectual property right of oneself.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Most preferred embodiment of the present invention as shown in Figure 1, a kind of airway pressure measuring system, it comprises steady flow testbed of air passage 1, cylinder head 2, cylinder barrel 3, pressure transducer 4, charge amplifier 5 and data acquisition system (DAS) 6, cylinder head 2 are arranged on the cylinder barrel 3, and cylinder head 2 is provided with tested station; Pressure transducer 4 is arranged on the tested station of cylinder head 2; Pressure transducer 4 is connected with charge amplifier 5; Charge amplifier 5 is connected with data acquisition system (DAS) 6, passes on the data acquisition system (DAS) 6 after measured signal is handled, and through the calculating of data acquisition system (DAS) 6, exports used parameter.
The action of equipment: adopt stable level pressure difference vane type measuring method, under different valve stroke conditions, measurement is by the MAF of air flue, the circulation area of air flue, the rotational speed of eddy current of air flue, the geometric area of air flue, the pressure of air flue different cross section is (in conjunction with fluid analysis software, determine the position of tested spot pressure, the setting pressure sensor), the signal that pressure transducer is measured is measured parameter through the processing of charge amplifier and other, be sent to data acquisition system (DAS), advance software and calculated, exported required numerical value.
Claims (1)
1. airway pressure measuring system, it comprises steady flow testbed of air passage (1), cylinder head (2), cylinder barrel (3), pressure transducer (4), charge amplifier (5) and data acquisition system (DAS) (6) is characterized in that cylinder head (2) is arranged on the cylinder barrel (3), and cylinder head (2) is provided with tested station; Pressure transducer (4) is arranged on the tested station of cylinder head (2); Pressure transducer (4) is connected with charge amplifier (5); Charge amplifier (5) is connected with data acquisition system (DAS) (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100852384A CN103196614A (en) | 2013-03-18 | 2013-03-18 | Airway pressure measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100852384A CN103196614A (en) | 2013-03-18 | 2013-03-18 | Airway pressure measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103196614A true CN103196614A (en) | 2013-07-10 |
Family
ID=48719309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100852384A Pending CN103196614A (en) | 2013-03-18 | 2013-03-18 | Airway pressure measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103196614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759926A (en) * | 2013-12-12 | 2014-04-30 | 中国北方发动机研究所(天津) | Cylinder sleeve fatigue test device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558105A (en) * | 2004-02-03 | 2004-12-29 | 何安成 | Method and apparatus for infusing oxygen-rich gas into cylinder of internal combustion engine |
| CN1731116A (en) * | 2004-08-05 | 2006-02-08 | 本田技研工业株式会社 | Combustion pressure detecting apparatus |
| CN101545432A (en) * | 2008-03-28 | 2009-09-30 | 株式会社电装 | Fuel pressure sensor/sensor mount assembly |
-
2013
- 2013-03-18 CN CN2013100852384A patent/CN103196614A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558105A (en) * | 2004-02-03 | 2004-12-29 | 何安成 | Method and apparatus for infusing oxygen-rich gas into cylinder of internal combustion engine |
| CN1731116A (en) * | 2004-08-05 | 2006-02-08 | 本田技研工业株式会社 | Combustion pressure detecting apparatus |
| CN101545432A (en) * | 2008-03-28 | 2009-09-30 | 株式会社电装 | Fuel pressure sensor/sensor mount assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759926A (en) * | 2013-12-12 | 2014-04-30 | 中国北方发动机研究所(天津) | Cylinder sleeve fatigue test device |
| CN103759926B (en) * | 2013-12-12 | 2016-04-27 | 中国北方发动机研究所(天津) | Cylinder sleeve fatigue test device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |