CN203657966U - Engine air inlet pressure fluctuation measurement apparatus - Google Patents
Engine air inlet pressure fluctuation measurement apparatus Download PDFInfo
- Publication number
- CN203657966U CN203657966U CN201420040884.9U CN201420040884U CN203657966U CN 203657966 U CN203657966 U CN 203657966U CN 201420040884 U CN201420040884 U CN 201420040884U CN 203657966 U CN203657966 U CN 203657966U
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- China
- Prior art keywords
- air inlet
- boss structure
- engine
- installing plate
- inlet pressure
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Abstract
The utility model discloses an engine air inlet pressure fluctuation measurement apparatus, comprising a soleplate in connection with an air inlet pipe. The soleplate comprises an installing plate provided with bolt apertures used for being in fixed connection with the air inlet pipe; the installing plate is provided with a boss structure; the top end face of the boss structure is located in the center of the air inlet pipe; the boss structure is provided with a countersink; a screwed hole is arranged between the countersink and the top end and is provided with a pressure transducer. According to the utility model, the engine air inlet pressure fluctuation measurement apparatus has the beneficial effects of simple structure and reasonable design, can obtain air inlet pressure fluctuation conditions in the air inlet pipe so as to learn various dynamic parametric states of an engine in real operation processes in more detail, including air inlet pressure circulating fluctuation principles and characteristics, and provide boundary conditions for calculation and analysis and clear directions for engine subsequent calibration and optimization.
Description
Technical field
The utility model relates to a kind of engine test research testing apparatus, relates in particular to a kind of engine charge pressure surge measurement mechanism.
Background technology
At present, in engine test research with design and develop in process, comparative maturity of experimental test technology, comprise all normalizations such as the monitoring of power, moment of torsion, oil consumption, Matching of Turbocharger and the extraneous test condition of engine for the DATA REASONING of engine test bench characteristic, the acquisition of these basic motive, economical parameter has not been any difficult problem.But for engine research personnel, except understanding Bench calibration parameter, working condition in the design parameter of engine own and cylinder is most important, be generally the average pressure value in draft tube due to what experimental stand obtained, cannot provide real pressure fluctuation in draft tube, that is to say cannot be for computational analysis provides boundary condition, cannot be that the follow-up demarcation of engine, optimization propose clear and definite direction.
Utility model content
The utility model is for the existing deficiency of prior art, and provide a kind of simple in structure, reasonable in design, can understand rule and the characteristic of admission pressure circular wave, and for computational analysis provides boundary condition, for the follow-up demarcation of engine with optimize the engine charge pressure surge measurement mechanism that proposes clear and definite direction.
To achieve these goals, the utility model provides a kind of engine charge pressure surge measurement mechanism, comprise the mount pad being connected with draft tube, described mount pad comprises installing plate, described installing plate is provided with the bolt hole for being fixedly connected with described draft tube, described installing plate is provided with boss structure, and the end face of described boss structure is positioned at described draft tube center; Described boss structure is provided with counterbore, between described counterbore and described end face, is provided with threaded hole, and threaded hole is provided with pressure transducer.
Wherein, described boss structure is cylindrical structural.
Another is preferred, and the cross section parallel with described installing plate of described boss structure is water droplet shape.
Another is preferred, and described boss structure is streamlined structure.
In use, gas flow is through boss structure, and pressure transducer detects the pressure at air-flow center, and sends data to record analysis equipment.
The beneficial effect of this programme can be learnt according to the narration to such scheme, simple in structure, reasonable in design, can obtain the pressure surge situation of air inlet in draft tube, and then understand in more detail the state of various dynamic parameters in the actual moving process of engine, comprise rule and the characteristic of understanding admission pressure circular wave, and provide boundary condition for computational analysis, for the follow-up demarcation of engine and the clear and definite direction of optimization proposition, for the lifting of engine power performance and economic index contributes.Combustion tester dynamic pressure transducer is arranged in threaded hole, and boss structure and counterbore make the measurement bottom surface of pressure transducer be positioned at the air-flow center of draft tube, can better ensure that the pressure that captures full-blown air-flow changes.Boss structure is set to cylindrical easy processing, and due to the existence of Venturi effect, boss structure is limited to the flow rate effect of whole air-flow; Another is preferred, and the cross section parallel with installing plate of boss structure is water droplet shape, can further reduce the resistance to air-flow; Another is preferred, and boss structure is streamlined structure, can further reduce the resistance to air-flow.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment;
Fig. 2 is the schematic perspective view of mount pad in Fig. 1;
In figure, 1, draft tube; 2, mount pad; 3, bolt hole; 4, boss structure; 5, end face; 6, counterbore; 7, threaded hole; 8, installing plate; 9, pressure transducer.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, this programme is set forth.
Embodiment 1
As shown in Figure 1 and Figure 2, the utility model is a kind of engine charge pressure surge measurement mechanism, comprise the mount pad 2 being connected with draft tube 1, mount pad comprises installing plate 8, installing plate 8 is provided with the bolt hole 3 for being fixedly connected with draft tube 1, installing plate 8 is provided with boss structure 4, boss structure 4 is cylindrical structural, the end face 5 of boss structure 4 is positioned at draft tube 1 center, boss structure 4 is provided with counterbore 6, the threaded hole 7 being provided with between counterbore 6 and end face 5, threaded hole 7 is provided with pressure transducer 9.
In use, gas flow is through boss structure 4, and pressure transducer 9 detects the pressure at air-flow center, and sends data to record analysis equipment.
Embodiment 2
Be different from embodiment 1, the cross section parallel with described installing plate of boss structure is water droplet shape, embodiment 1, can further reduce the resistance to air-flow relatively.
Be different from embodiment 1, boss structure is streamlined structure, embodiment 1, can further reduce the resistance to air-flow relatively.
The utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example; variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (4)
1. an engine charge pressure surge measurement mechanism, comprise the mount pad being connected with draft tube, it is characterized in that, described mount pad comprises installing plate, described installing plate is provided with the bolt hole for being fixedly connected with described draft tube, described installing plate is provided with boss structure, and the end face of described boss structure is positioned at described draft tube center; Described boss structure is provided with counterbore, between described counterbore and described end face, is provided with threaded hole, and threaded hole is provided with pressure transducer.
2. engine charge pressure surge measurement mechanism according to claim 1, is characterized in that, described boss structure is cylindrical structural.
3. engine charge pressure surge measurement mechanism according to claim 1, is characterized in that, the cross section parallel with described installing plate of described boss structure is water droplet shape.
4. engine charge pressure surge measurement mechanism according to claim 1, is characterized in that, described boss structure is streamlined structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040884.9U CN203657966U (en) | 2014-01-22 | 2014-01-22 | Engine air inlet pressure fluctuation measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040884.9U CN203657966U (en) | 2014-01-22 | 2014-01-22 | Engine air inlet pressure fluctuation measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657966U true CN203657966U (en) | 2014-06-18 |
Family
ID=50924343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040884.9U Expired - Fee Related CN203657966U (en) | 2014-01-22 | 2014-01-22 | Engine air inlet pressure fluctuation measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351269A (en) * | 2015-11-05 | 2018-07-31 | 法国大陆汽车公司 | The cavitation measuring instrument anti-resonance vibration of pressure sensor for internal combustion engine and anti-cigarette ash end pieces |
| CN109128715A (en) * | 2018-10-15 | 2019-01-04 | 北京动力机械研究所 | The preparation method of water cooling jet pipe measurement segment structure under big gas flow use condition |
-
2014
- 2014-01-22 CN CN201420040884.9U patent/CN203657966U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351269A (en) * | 2015-11-05 | 2018-07-31 | 法国大陆汽车公司 | The cavitation measuring instrument anti-resonance vibration of pressure sensor for internal combustion engine and anti-cigarette ash end pieces |
| CN108351269B (en) * | 2015-11-05 | 2020-01-17 | 法国大陆汽车公司 | Cavitated anti-resonance and anti-soot end piece for pressure sensor of internal combustion engine |
| US10753825B2 (en) | 2015-11-05 | 2020-08-25 | Continental Automotive France | Cavitation anti-resonance and anti-soot end piece for pressure sensor of an internal combustion engine |
| CN109128715A (en) * | 2018-10-15 | 2019-01-04 | 北京动力机械研究所 | The preparation method of water cooling jet pipe measurement segment structure under big gas flow use condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140618 Termination date: 20200122 |