CN201416474Y - Anti-downdraft mechanism for automobile exhaust pipe - Google Patents
Anti-downdraft mechanism for automobile exhaust pipe Download PDFInfo
- Publication number
- CN201416474Y CN201416474Y CN2009200853653U CN200920085365U CN201416474Y CN 201416474 Y CN201416474 Y CN 201416474Y CN 2009200853653 U CN2009200853653 U CN 2009200853653U CN 200920085365 U CN200920085365 U CN 200920085365U CN 201416474 Y CN201416474 Y CN 201416474Y
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- exhaust pipe
- exhaust
- control chip
- seal valve
- 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 anti-downdraft mechanism for an automobile exhaust pipe. The anti-downdraft mechanism is characterized in that the anti-downdraft mechanism comprises stepper motors (1and 6), an upper exhaust pipe and a lower exhaust pipe (3 and 5) and a control chip (10); wherein seal valves (2 and 4) are respectively arranged on the upper exhaust pipe and the lower exhaust pipe (3 and 5) in the position close to the exhaust ports, the input ends of the stepper motors (1 and 6) are connected with the output ends (7 and 8) of the control chip (10), the output end of the steppermotor (1) is connected with the seal valve (2) in the lower exhaust pipe (5), and a control switch (9) is arranged at the signal input end of the control chip (10). The anti-downdraft mechanism has the advantages that the structure is simple, two exhaust pipelines with different height are arranged, so as to control the exhaust process of the exhaust pipes at random, prevent accumulated water from entering the exhaust pipes when the automobile passes through a depressed water pit, which leads to damage to the exhaust system and the engine, therefore, the anti-downdraft mechanism is safe and reliable.
Description
Technical field
The utility model relates to a kind of automobile backward flowing preventing device, specifically is the anti-mechanism of pouring in down a chimney of a kind of automobile exhaust pipe.
Background technique
Meet with heavy rain or long-term rainy weather, some sewage often can be assembled in low-lying location on the road.Because the relief opening position of most of automobile is lower, automobile the situation that exhaust pressure is lower than hydraulic pressure occurs through regular meeting by the pools zone time, and at this moment water will enter outlet pipe, contacts with the outlet pipe of high temperature, causes the vent systems damage.If sewage also might enter motor by outlet pipe, can cause automobile flameout, can't start, and also can cause great infringement to motor accidentally.
Summary of the invention
The purpose of this utility model provides that a kind of automobile exhaust pipe is anti-to pour in down a chimney mechanism, prevents automobile through low-lying place, and ponding enters outlet pipe, and the vent systems and the motor of automobile caused damage.
Described automobile exhaust pipe prevents that pouring in down a chimney mechanism comprises stepper motor, upper and lower outlet pipe and control chip ECU, be respectively equipped with seal valve at upper and lower outlet pipe near exhaust ports, the input end of stepper motor is connected with the output terminal of control chip ECU, seal valve in the output terminal of stepper motor and the last outlet pipe is connected, seal valve in the output terminal of stepper motor and the following outlet pipe is connected, and an input end of the signal of control chip links to each other with control switch.
The utility model adds a upper end outlet pipe at the tail end of outlet pipe, and the relief opening position of upper end outlet pipe is higher.Be equipped with seal valve in the upper and lower outlet pipe, its seal valve is by step motor control.When the pools zone, by switch, the seal valve at upper end outlet pipe place is rotated 90 degree at automobile, make the upper end outlet pipe be in opening state, the seal valve that is positioned at outlet pipe place, lower end is simultaneously closed, and tail gas is discharged through the upper end outlet pipe.Can prevent that through the pools zone time ponding from entering outlet pipe.
The utility model is simple in structure, is provided with two exhaust ducts that height is different, can control the exhaust process of outlet pipe voluntarily, and when preventing automobile through low-lying puddle, ponding enters outlet pipe, and vent systems and motor are caused damage, and is safe and reliable.
Description of drawings.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1,6-stepper motor, 2, the 4-seal valve, 3, the upper and lower outlet pipe of 5-, 7, the output terminal of 8-control chip, 9-control switch, 10-control chip.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing, among Fig. 1, described automobile exhaust pipe prevents that pouring in down a chimney mechanism comprises stepper motor 1,6, upper and lower outlet pipe 3,5 and control chip 10, be respectively equipped with seal valve 2,4 at upper and lower outlet pipe 3,5 near exhaust ports, the input end of stepper motor 1,6 is connected with the output terminal of control chip 10 7,8, the output terminal of stepper motor 1 is connected with seal valve 2 in the last outlet pipe 3, the output terminal of stepper motor 2 is connected with seal valve 4 in the following outlet pipe 5, and a signal input part of control chip 10 links to each other with control switch 9.
The utility model is provided with upper and lower outlet pipe 3,5, and the relief opening of last outlet pipe 3 is higher than outlet pipe 5 down.Control the switching of two relief openings by two electronic seal valves 2,4.Under normal circumstances, the seal valve 2 in the last outlet pipe 3 is closed, and seal valve 4 is opened in the following outlet pipe 5, and the relief opening of lower end is unimpeded.
Automobile on the way travels when running into the pools zone, the driver presses enable switch 9, actuating signal is reached the control chip 10 of automobile, ECU judges signal, control chip 10 sends instruction then, and control step motor 1 and 6 rotates, and drives seal valve 2 and closes, seal valve 4 is opened, and last outlet pipe 3 is opened.So just effectively prevented when passing through darker pools zone, because the outlet pipe water inlet causes automobile flameout or vent systems is caused damage.Automobile is by after the pools zone, and again by a diverter switch, stepper motor drives seal valve and sets back.
Claims (1)
1. an automobile exhaust pipe prevents pouring in down a chimney mechanism, it is characterized in that: describedly anti-pour in down a chimney mechanism and comprise stepper motor (1,6), on, following outlet pipe (3,5) and control chip (10), last, following outlet pipe (3,5) be respectively equipped with seal valve (2 near exhaust ports, 4), stepper motor (1, the output terminal (7 of input end 6) and control chip (10), 8) connect, the electrical signal control end of the seal valve (2) in the output terminal of stepper motor (1) and the last outlet pipe (3) is connected, the electrical signal control end of the seal valve (4) in the output terminal of stepper motor (2) and the following outlet pipe (5) is connected, and a signal input part of control chip (10) links to each other with control switch (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200853653U CN201416474Y (en) | 2009-04-28 | 2009-04-28 | Anti-downdraft mechanism for automobile exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200853653U CN201416474Y (en) | 2009-04-28 | 2009-04-28 | Anti-downdraft mechanism for automobile exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416474Y true CN201416474Y (en) | 2010-03-03 |
Family
ID=41792891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200853653U Expired - Fee Related CN201416474Y (en) | 2009-04-28 | 2009-04-28 | Anti-downdraft mechanism for automobile exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416474Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912384A (en) * | 2014-04-10 | 2014-07-09 | 杨永强 | Automotive engine water inflow preventing system |
| CN107387218A (en) * | 2017-09-12 | 2017-11-24 | 如皋福大工程技术研究院有限公司 | The adjustable exhaust pipe assembly of vent position |
-
2009
- 2009-04-28 CN CN2009200853653U patent/CN201416474Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912384A (en) * | 2014-04-10 | 2014-07-09 | 杨永强 | Automotive engine water inflow preventing system |
| CN103912384B (en) * | 2014-04-10 | 2016-05-25 | 杨永强 | One prevents automobile engine water inlet system |
| CN107387218A (en) * | 2017-09-12 | 2017-11-24 | 如皋福大工程技术研究院有限公司 | The adjustable exhaust pipe assembly of vent position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20100428 |