CN203515820U - Electronic injection throttle body - Google Patents
Electronic injection throttle body Download PDFInfo
- Publication number
- CN203515820U CN203515820U CN201320489305.4U CN201320489305U CN203515820U CN 203515820 U CN203515820 U CN 203515820U CN 201320489305 U CN201320489305 U CN 201320489305U CN 203515820 U CN203515820 U CN 203515820U
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- CN
- China
- Prior art keywords
- throttle
- torsion spring
- plate pin
- adsorption tube
- throttle plate
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- Expired - Fee Related
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses an electronic injection throttle body. The electronic injection throttle body comprises a body (4), a throttle shaft (2), a throttle plate (5), a rotating frame (7) and a torsion spring (6), wherein the throttle shaft (2) is provided with a shaft sleeve (8), the torsion spring (6) which is a twin torsion spring is arranged on the throttle shaft (2) through the shaft sleeve (8), one end of the torsion spring (6) is fixed to the body (4), the other end of the torsion spring (6) is fixed to the rotating fame (7), the body (4) is further provided with an adsorption tube (9) in a riveting mode, the adsorption tube (9) is communicated with a main gas channel (15) located at back of the throttle plate (5), the body (4) is further provided with a support installation boss (13), and a pull rope support (12) is installed on the support installation boss (13). According to the electronic injection throttle body, control over a rotating frame pull rope is enhanced, improvement on return performance and idling stability is facilitated, motor vehicle exhaust emission is reduced, and safety is improved.
Description
Technical field
The utility model relates to a kind of automotive engine component, especially the door in electrojet solar terms of automotive fuel oil system.
Background technique
The throttle body of domestic low and middle-grade automobile electronic fuel oil jet oil-fired systems is mainly mechanical type air throttle body at present, its gas handling system is mainly to drive swing frame to rotate by controlling the motion of acceleration cable, throttle plate pin and throttle blade are rotated, and by position transducer, the aperture signal of throttle blade is exported to automobile electronic fuel oil jet system central unit ECU, central unit ECU is according to vehicle working condition and sensor signal, the oil spout of prompting oil sprayer, make gasoline and air be able to abundant mixing, reach theoretic optimal air-fuel ratio, gasoline is fully burnt, the content of the toxic gas such as carbon monoxide and oxynitrides in vehicle exhaust while reducing idling operation.When engine start and idling operation, central unit ECU controls the stepper motor be arranged on body and rotates, and adjusts the aperture of by-pass on throttle body, the air inlet with control engine when each operating mode.
Therefore, throttle body is the key components and parts of control engine air inlet in automobile fuel injection system, but after existing throttle body in use occurs that torsion spring is abnormal, throttle blade is accurate return clamping stagnation even just, also have plenty of because of the mounting point precision offset of throttle body torsion spring on throttle plate pin, cause equally accurately return of throttle blade.In addition, existing throttle body also has the unidirectional play because of throttle plate pin, causes the single-way moving of throttle blade, makes throttle blade and the chamber body friction problem that accurately return and occurring misplaces.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of door in electrojet solar terms is provided, and has improved torsion spring functional reliability, and can guarantee the accurate return of throttle blade.
The purpose of this utility model is achieved through the following technical solutions: a kind of door in electrojet solar terms, comprise the body, throttle plate pin, throttle blade, swing frame and the torsion spring that in it, are provided with gas main passage, on described throttle plate pin, be provided with axle sleeve, described torsion spring is torsion spring, torsion spring warp beam sleeve is arranged on throttle plate pin, one end of torsion spring is fixed on body, and the other end is fixed on swing frame; On described body, also riveted joint has adsorption tube, and adsorption tube is connected with the gas main passage that is positioned at throttle blade rear portion.
On body described in the utility model, be also provided with support installation base, on support installation base, also include stay cord support.
On adsorption tube described in the utility model, include mounting hole, adsorption tube is fixed on body by mounting hole.
Gas described in the utility model main passage is divided into two sections, and corresponding one section of throttle blade aperture scope is cylindrical, and corresponding one section of throttle blade air inlet the place ahead is conical.
On throttle plate pin described in the utility model, be also provided with collar, collar is fastened in the draw-in groove on throttle plate pin with a gap.
On body described in the utility model, be also provided with the interface for mounting point sensor.
The utlity model has following advantage:
1, on body, increase stay cord support installation base, profile is more compact, attractive in appearance, saving material;
2, in stay cord tangent direction, increase support, to strengthen the control to swing frame stay cord, be conducive to improve the return performance of throttle body, increase idle stability, reduce motor vehicle exhaust emission, improve driving safety;
3, middle part, gas main passage adopts stretched design, and body wall thickness is even, and structural strength is better, and beautiful shape, and the anterior internal channel of throttle blade is up big and down small taper, and intake efficiency is high;
4, air inlet by-pass adopts monolithic construction, and profile is more compact, intake efficiency is higher;
5, adopt unidirectional limit structure, can effectively control axial float, prevent that closure is because of axial float hair fastener;
6, throttle blade adopts aluminium, and cost is low, and reduces the friction between metal.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is the worm's eye view of Fig. 1;
Fig. 3 is the plan view of Fig. 1;
Fig. 4 is stereogram of the present utility model;
In figure, 1-position transducer, 2-throttle plate pin, 3-collar, 4-body, 5-throttle blade, 6-torsion spring, 7-swing frame, 8-axle sleeve, 9-adsorption tube, 10-stop screw, 11-stepper motor, 12-stay cord support, 13-support installation base, 14-by-pass, 15-main passage.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of door in electrojet solar terms, described body 4 is formed by aluminium alloy compression casting.Throttle plate pin 2 is arranged on the closure bearing hole of body 4, throttle blade 5 is arranged on throttle plate pin 2, the integrated interface being processed with for mounting point sensor 1 on body 4, stepper motor 11 is installed on body 4, stepper motor 11 is controlled the aperture of body 4 upper air by-passes 14, to adapt to engine idling condition.
Described torsion spring 6 is torsion spring, torsion spring 6 warp beam sleeves 8 are arranged on throttle plate pin 2, torsion spring 6 one end are fixed on body, the other end is fixed on swing frame 7, swing frame 7 connects firmly with throttle plate pin 2, its axial force resets swing frame 7, and swing frame 7 is stressed and when idling conditions, and throttle blade 5 is in the closed position.
On described body 4, riveted joint has adsorption tube 9, and adsorption tube 9 is connected with the gas main passage 15 being positioned at after throttle blade 5.On body 4, be provided with intake manifold junction surface, it has the seal request of very high intake manifold.On body 4, be also provided with support installation base 13, stay cord support 12 is arranged on support installation base 13, and described stay cord support 12 has the effect of controlling throttle opening, is conducive to improve the return performance of throttle body in throttle body assembly, idle stability.
Described gas main passage 15 is divided into two sections, corresponding one section of throttle blade 5 aperture scopes are cylindrical, corresponding another section in throttle blade 5 the place aheads is conical, 15 middle parts, gas main passage in body 4 are stretched shape, and anterior passage is up big and down small taper, when this structure is opened throttle blade 5 within the scope of its 0～20 °, gas channel changes of section slows down, thereby the gas flow that makes throttle body changes to have significantly and slows down, to realize Security and the travelling comfort of driving.
On described throttle plate pin 2, be also provided with the collar 3 that axle is played to position-limiting action, collar 3 is stuck in the draw-in groove on throttle plate pin 2 (thickness of collar is less than the width of draw-in groove) with a gap, collar 3 is arranged on the bearing inner side of sensor side, can effectively control the axial float of throttle plate pin 2.The material of described throttle blade 5 is aluminum alloy, cost-saving, and can reduce the friction between metal, is also provided with stop screw 5 on body 4, for adjusting idling.
Claims (4)
1. a door in electrojet solar terms, comprise the body (4), throttle plate pin (2), throttle blade (5), swing frame (7) and the torsion spring (6) that in it, are provided with gas main passage (13), it is characterized in that: on described throttle plate pin (2), be provided with axle sleeve (8), described torsion spring (6) is torsion spring (6), torsion spring (6) warp beam sleeve (8) is arranged on throttle plate pin (2), it is upper that one end of torsion spring (6) is fixed on body (4), and the other end is fixed on swing frame (7); On described body (4), also riveted joint has adsorption tube (9), adsorption tube (9) is connected with the gas main passage (13) that is positioned at throttle blade (5) rear portion, on body (4), also include support installation base (13), on support installation base (13), be provided with stay cord support (12), body is also provided with the interface for mounting point sensor (1) on (4).
2. a kind of door in electrojet solar terms according to claim 1, is characterized in that: described adsorption tube includes mounting hole on (9), and adsorption tube (9) is fixed on body (4) by mounting hole.
3. a kind of door in electrojet solar terms according to claim 1, it is characterized in that: described gas main passage (13) is divided into two sections, corresponding one section of throttle blade (5) aperture scope is cylindrical, and corresponding one section of throttle blade (5) air inlet the place ahead is conical.
4. a kind of door in electrojet solar terms according to claim 1, is characterized in that: on described throttle plate pin (2), be also provided with collar (3), collar (3) is fastened in the draw-in groove on throttle plate pin (2) with a gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489305.4U CN203515820U (en) | 2013-08-12 | 2013-08-12 | Electronic injection throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489305.4U CN203515820U (en) | 2013-08-12 | 2013-08-12 | Electronic injection throttle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515820U true CN203515820U (en) | 2014-04-02 |
Family
ID=50374762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489305.4U Expired - Fee Related CN203515820U (en) | 2013-08-12 | 2013-08-12 | Electronic injection throttle body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707856A (en) * | 2019-02-02 | 2019-05-03 | 联合汽车电子有限公司 | Valve body connects system and gas recirculation system |
-
2013
- 2013-08-12 CN CN201320489305.4U patent/CN203515820U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707856A (en) * | 2019-02-02 | 2019-05-03 | 联合汽车电子有限公司 | Valve body connects system and gas recirculation system |
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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: 20140402 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |