CN204854825U - Turbofan formula car air mass flow meter - Google Patents
Turbofan formula car air mass flow meter Download PDFInfo
- Publication number
- CN204854825U CN204854825U CN201520494117.XU CN201520494117U CN204854825U CN 204854825 U CN204854825 U CN 204854825U CN 201520494117 U CN201520494117 U CN 201520494117U CN 204854825 U CN204854825 U CN 204854825U
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- CN
- China
- Prior art keywords
- turbofan
- magnetic suspension
- flow meter
- suspension bearing
- floating axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an automobile the air mass flow meter specifically is a turbofan formula car air mass flow meter. Flowmeter casing including the tube -shape, install a support in the flowmeter casing inner chamber, a magnetcisuspension floating axle is installed through magnetic suspension bearing in the center of support, magnetic suspension bearing is connected to the power to can be when the switch on, through the work of a power amplifier drive magnetic suspension bearing, the front end fixed mounting of magnetcisuspension floating axle has a turbofan, the epaxial fixed mounting of magnetic suspension at turbofan rear has one can follow magnetcisuspension floating axle pivoted signaling gear circle, installs the speed sensor who is used for detecting signaling gear circle rotational speed on the inner wall of the flowmeter casing that the signaling gear circle corresponds. Through using magnetic suspension bearing, magnetcisuspension floating axle pivoted resistance has been reduced greatly for the turbofan can drive the magnetcisuspension floating axle easily and rotate at air current effect infraduction measured time, and then drives the rotation of signaling gear circle, and it is high to detect the precision.
Description
Technical field
The utility model relates to a kind of automobile air flow meter, specifically a kind of turbofan automobile air flow meter.
Background technology
Along with the fast development of auto industry, various countries' automobile volume of holding increases severely, and energy resource consumption is huge, and the fuel oil required for automobile is more and more nervous, how to reduce oil consumption, and economize energy is the new problem that people endeavour.According to the air inflow entering motor car engine, be equipped with the gasoline of respective amount, contribute to the efficiency improving fuel oil, reduce oil consumption.
The automobile air flow meter existed in prior art has: hot wire air flowmeter, the rotating air flowmeter of karman vortex, turbine type air flowmeter etc., and these air flowmeter all also exist the low problem of measuring accuracy.
Summary of the invention
Technical problem to be solved in the utility model is, provides the turbofan automobile air flow meter that a kind of measuring accuracy is high.
Turbofan automobile air flow meter of the present utility model, comprises the flowmeter shell of tubular, is provided with a support in described flowmeter shell inner chamber, and the center of described support is provided with a magnetic suspension shaft by magnetic suspension bearing; Described magnetic suspension bearing is connected to power supply, and when switching on power, can drive magnetic suspension bearing work by a power amplifier; The front end of described magnetic suspension shaft is installed with a turbofan, the magnetic suspension shaft at described turbofan rear is installed with a signal gear ring that can rotate with magnetic suspension shaft, the inwall of flowmeter shell corresponding to signal gear ring is provided with the speed probe for detection signal gear ring rotating speed.By using magnetic suspension bearing, substantially reducing the resistance that magnetic suspension shaft rotates, when turbofan is rotated under airflow function, can magnetic suspension shaft be driven easily to rotate, and then drive signal ring gear against rotation, accuracy of detection be high.
The rotating diameter of the flabellum of described turbofan and the diameter compatible of flowmeter shell close, thus ensure that all air-flows can pass through from turbofan, improve final accuracy of detection.
Described signal gear ring is made by light aluminum alloy material, weight reduction, contributes to improving final accuracy of detection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in the figure: a kind of turbofan automobile air flow meter, comprise the flowmeter shell 1 of tubular, be provided with a support 2 in described flowmeter shell 1 inner chamber, the center of described support 2 is provided with a magnetic suspension shaft 3 by magnetic suspension bearing 4; Described magnetic suspension bearing 4 is connected to power supply, and can, when switching on power, drive magnetic suspension bearing 4 to work by a power amplifier 8;
The front end of described magnetic suspension shaft 3 is installed with a turbofan 5, the magnetic suspension shaft 3 at described turbofan 5 rear is installed with a signal gear ring 6 that can rotate with magnetic suspension shaft 3,
The inwall of the flowmeter shell 1 of signal gear ring 6 correspondence is provided with the speed probe 7 for detection signal gear ring 6 rotating speed.
The rotating diameter of the flabellum of described turbofan 5 and the diameter compatible of flowmeter shell 1 close.
Described speed probe 7, by a magnetoelastic transducer 9, passes the signal along on automobile computer.
Described signal gear ring 6 is made by light aluminum alloy material.
Described speed probe 7 is arranged on a through hole be arranged on flowmeter shell 1 sidewall by bolt.
When automobile key switch rotates to when starting gear, engine starts to start, and described magnetic suspension bearing 4 switches on power, in running order.The air of engine aspirating system starts turbofan 5 is rotated, and turbofan 5 drives magnetic suspension shaft 3 to rotate, and signal gear ring 6 rotates with magnetic suspension shaft 3, and the pulse signal of detection after magnetoelastic transducer 9 is changed, is passed to automobile computer by speed probe 7.
Claims (5)
1. a turbofan automobile air flow meter, it is characterized in that: the flowmeter shell (1) comprising tubular, be provided with a support (2) in described flowmeter shell (1) inner chamber, the center of described support (2) is provided with a magnetic suspension shaft (3) by magnetic suspension bearing (4); Described magnetic suspension bearing (4) is connected to power supply, and when switching on power, can drive magnetic suspension bearing (4) work by a power amplifier (8);
The front end of described magnetic suspension shaft (3) is installed with a turbofan (5), the magnetic suspension shaft (3) at described turbofan (5) rear is installed with a signal gear ring (6) that can rotate with magnetic suspension shaft (3),
The inwall of the flowmeter shell (1) of signal gear ring (6) correspondence is provided with the speed probe (7) for detection signal gear ring (6) rotating speed.
2. turbofan automobile air flow meter according to claim 1, is characterized in that: the rotating diameter of the flabellum of described turbofan (5) and the diameter compatible of flowmeter shell (1) close.
3. turbofan automobile air flow meter according to claim 1, is characterized in that: described speed probe (7), by a magnetoelastic transducer (9), passes the signal along on automobile computer.
4. turbofan automobile air flow meter according to claim 1, is characterized in that: described signal gear ring (6) is made by light aluminum alloy material.
5. turbofan automobile air flow meter according to claim 1, is characterized in that: described speed probe (7) is arranged on a through hole be arranged on flowmeter shell (1) sidewall by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494117.XU CN204854825U (en) | 2015-07-10 | 2015-07-10 | Turbofan formula car air mass flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494117.XU CN204854825U (en) | 2015-07-10 | 2015-07-10 | Turbofan formula car air mass flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854825U true CN204854825U (en) | 2015-12-09 |
Family
ID=54745365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520494117.XU Expired - Fee Related CN204854825U (en) | 2015-07-10 | 2015-07-10 | Turbofan formula car air mass flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204854825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004381A (en) * | 2015-07-10 | 2015-10-28 | 镇江市高等专科学校 | Turbofan type automobile air flow meter |
-
2015
- 2015-07-10 CN CN201520494117.XU patent/CN204854825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004381A (en) * | 2015-07-10 | 2015-10-28 | 镇江市高等专科学校 | Turbofan type automobile air flow meter |
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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 |
Granted publication date: 20151209 Termination date: 20210710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |