CN202433165U - Detection device for oil tank respirator of small gasoline engine - Google Patents
Detection device for oil tank respirator of small gasoline engine Download PDFInfo
- Publication number
- CN202433165U CN202433165U CN2012200147074U CN201220014707U CN202433165U CN 202433165 U CN202433165 U CN 202433165U CN 2012200147074 U CN2012200147074 U CN 2012200147074U CN 201220014707 U CN201220014707 U CN 201220014707U CN 202433165 U CN202433165 U CN 202433165U
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- oil tank
- respirator
- alarm
- gasoline engine
- electronic control
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Abstract
The utility model relates to the technical field of a detection device, in particular to a detection device for an oil tank respirator of a small gasoline engine. The detection device for the oil tank respirator of the small gasoline engine comprises an oil tank, a respirator, a detected airflow flow pipe, an electrifying switch, an electronic control unit and an alarm, wherein the oil tank is communicated with the detected airflow flow pipe through oil tank oil-outlet pipe, and the respirator is arranged on the oil tank; a pressure sensor, an air booster pump and a vacuum pump are arranged on the detected airflow flow pipe; and the pressure sensor, the air booster pump, the vacuum pump, the electrifying switch and the alarm are electrically connected with the electronic control unit respectively. The detection device for the oil tank respirator of the small gasoline engine has a simple and compact structure and low manufacture cost, can automatically detect the eligibility of the oil tank respirator of the small gasoline engine, and greatly reduces the labor strength of operators.
Description
Technical field
The utility model relates to the pick-up unit technical field, specifically a kind of miniature gasoline engine oil tank breather pick-up unit.
Background technology
The whether qualified operate as normal and the safe handling to miniature gasoline engine of miniature gasoline engine oil tank breather has material impact.Gasoline engine in use; In the variation of extraneous temperature, pressure, engine working process and the influence of the factors such as increase and decrease of heat conduction between fuel tank and fuel tank intermediate fuel oil; Temperature and pressure in the fuel tank can raise or reduce, but too high or too low fuel tank pressure, all can influence the normal fuel injection of small-sized carburetor type gasoline engine; Thereby influence its dynamic property, economy and emission performance, when serious even cause the blast of fuel tank.Therefore, oil tank breather must be opened when tank pressure is higher than and be lower than the respective specified value in real time, maintains in certain scope to guarantee the fuel tank internal pressure.
Therefore when miniature gasoline engine dispatches from the factory, must be to its oil tank breather whether qualified, promptly detect whether when tank pressure is higher than and be lower than the respective specified value, opening in real time.At present existing less to the whether qualified pick-up unit type of miniature gasoline engine oil tank breather, and operator's labour intensity is bigger.
The utility model content
It is a kind of simple in structure, compact that the utility model provides, low cost of manufacture, and can the qualification of miniature gasoline engine oil tank breather be detected automatically, greatly reduce the miniature gasoline engine oil tank breather pick-up unit of operator's labour intensity.
The utility model is realized through following technical proposals:
A kind of miniature gasoline engine oil tank breather pick-up unit; Comprise fuel tank, respirator, detection air flow stream siphunculus, upper electrical switch, electronic control unit and alarm; Said fuel tank is connected with said detection air flow stream siphunculus through the fuel tank flowline; Said respirator is located on the fuel tank; Said detection air flow stream siphunculus is provided with pressure transducer, air boost pump and vacuum pump, and said pressure transducer, air boost pump, vacuum pump, upper electrical switch and alarm are electrically connected with electronic control unit respectively.
Said respirator is located at fuel tank top.
Said alarm comprises qualified alarm and preceding alarm, and is electrically connected with electronic control unit respectively.
The beneficial effect that the utility model brought is:
In the utility model, said miniature gasoline engine oil tank breather pick-up unit.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further explain.
Fig. 1 is the structural representation of the said miniature gasoline engine oil tank breather of the utility model pick-up unit.
The label that component names is corresponding among the figure is following:
1, fuel tank; 2, respirator; 3, detect the air flow stream siphunculus; 4, upper electrical switch; 5, electronic control unit; 6, fuel tank flowline; 7, pressure transducer; 8, air boost pump; 9, vacuum pump; 10, qualified alarm; 11, preceding alarm.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to detail:
Embodiment as the said miniature gasoline engine oil tank breather of the utility model pick-up unit; As shown in Figure 1; Comprise fuel tank 1, respirator 2, detect air flow stream siphunculus 3, upper electrical switch 4, electronic control unit 5 and alarm; Said fuel tank 1 is connected with said detection air flow stream siphunculus 3 through fuel tank flowline 6; Said respirator 2 is located on the fuel tank 1, and said detection air flow stream siphunculus 3 is provided with pressure transducer 7, air boost pump 8 and vacuum pump 9, and said pressure transducer 7, air boost pump 8, vacuum pump 9, upper electrical switch 4 and alarm are electrically connected with electronic control unit 5 respectively.
In the present embodiment, said respirator 2 is located at fuel tank 1 top.
In the present embodiment, said alarm comprises qualified alarm 10 and preceding alarm 11, and is electrically connected with electronic control unit 5 respectively.
The principle of work of miniature gasoline engine oil tank breather pick-up unit is following.
1, the principle of work that the malleation of respirator 2 is detected: after upper electrical switch 4 closures; Said electronic control unit 5 control air supercharge pumps 8 work independently; Said detection air flow stream siphunculus 3 and fuel tank 1 interior pressure are raise, because the volume of said fuel tank 1 is much larger than the work discharge capacity of air boost pump 8, therefore; Said fuel tank 1 pressure inside equates with detection air flow stream siphunculus 3 interior pressure and is stable; When the pressure in said pressure transducer 7 detects said detection air flow stream siphunculus 3 reached setting, said electronic control unit 5 control air supercharge pumps 8 quit work, and carried out timing through electronic control unit 5 inner timing units; At the appointed time; If the pressure that pressure transducer 7 detects in the said detection air flow stream siphunculus 3 is reduced to atmospheric pressure, then alarm 11 sends alarm signal A before electronic control unit 5 controls, otherwise alarm 11 sends alerting signal B before electronic control unit 5 controls.In the whether qualified testing process of the malleation of respirator 2; If preceding alarm 11 all sends alarm signal A twice; Then the qualified alarm 10 of electronic control unit 5 controls sends qualified alerting signal C, otherwise the qualified alarm 10 of electronic control unit 5 controls sends defective alerting signal D; If in the process that air boost pump 8 works independently; The pressure that detects at the appointed time in the air flow stream siphunculus 3 does not reach setting; Explain that fuel tank 1 or respirator 2 have leakage, then the qualified alarm 10 of electronic control unit 5 controls directly sends defective alerting signal D.
2, to the principle of work of the detection of negative pressure of respirator 2: after upper electrical switch 4 closures; Said electronic control unit 5 control vacuum pumps 9 work independently; Said detection air flow stream siphunculus 3 and fuel tank 1 interior pressure are reduced; When the vacuum tightness in pressure transducer 7 detects said detection air flow stream siphunculus 3 reached setting, electronic control unit 5 control vacuum pumps 9 quit work, and carry out timing through electronic control unit 5 inner timing units; At the appointed time; If the pressure that pressure transducer 7 detects in the said detection air flow stream siphunculus 3 rises to atmospheric pressure, then alarm 11 sends alarm signal A before electronic control unit 5 controls, otherwise alarm 11 sends alerting signal B before electronic control unit 5 controls.In the whether qualified testing process of the negative pressure of respirator 2; If preceding alarm 11 all sends alarm signal A twice; Then the qualified alarm 10 of electronic control unit 5 controls sends qualified alerting signal C, otherwise the qualified alarm 10 of electronic control unit 5 controls sends defective alerting signal D; If in the process that vacuum pump 9 works independently, the pressure that detects at the appointed time in the air flow stream siphunculus 3 does not reach setting, explains that fuel tank 1 or respirator 2 have leakage, and then electronic control unit is controlled qualified alarm 10 and directly sent defective alerting signal D.
3, the principle of work that respirator 2 is detected: upper electrical switch close 4 close after; One in electronic control unit 5 control air supercharge pumps 8 or the vacuum pump 9 works independently; Detecting in the time that requires; If the pressure that pressure transducer 7 detects in the said detection air flow stream siphunculus 3 does not reach pressure setting or vacuum tightness setting; Then the qualified alarm 10 of electronic control unit 5 controls directly sends defective alerting signal D, and simultaneously, said electronic control unit 5 control air supercharge pumps 8 all quit work with vacuum pump 9; In addition, when alarm 11 sent signal for the first time before electronic control unit 5 control, one that also needs not work in control air supercharge pump 8 and the vacuum pump 9 worked independently, carries out the whether qualified continuation of malleation or negative pressure and detect.
The malleation of 11 pairs of respirators 2 of alarm detects or whether detection of negative pressure is qualified judges before said, and whether 10 pairs of respirators of said qualified alarm 2 are qualified judges; In addition, also can through upper electrical switch 4 is broken off, closed repetitive operation, accomplish the repeated detection of a respirator 2 or the detection one by one of a plurality of respirator 2, operate quick and conveniently, working strength is low.
Claims (3)
1. miniature gasoline engine oil tank breather pick-up unit; It is characterized in that comprising fuel tank, respirator, detection air flow stream siphunculus, upper electrical switch, electronic control unit and alarm; Said fuel tank is connected with said detection air flow stream siphunculus through the fuel tank flowline; Said respirator is located on the fuel tank; Said detection air flow stream siphunculus is provided with pressure transducer, air boost pump and vacuum pump, and said pressure transducer, air boost pump, vacuum pump, upper electrical switch and alarm are electrically connected with electronic control unit respectively.
2. miniature gasoline engine oil tank breather pick-up unit as claimed in claim 1 is characterized in that said respirator is located at fuel tank top.
3. miniature gasoline engine oil tank breather pick-up unit as claimed in claim 2 is characterized in that said alarm comprises qualified alarm and preceding alarm, and is electrically connected with electronic control unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200147074U CN202433165U (en) | 2012-01-13 | 2012-01-13 | Detection device for oil tank respirator of small gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200147074U CN202433165U (en) | 2012-01-13 | 2012-01-13 | Detection device for oil tank respirator of small gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433165U true CN202433165U (en) | 2012-09-12 |
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ID=46782605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200147074U Expired - Lifetime CN202433165U (en) | 2012-01-13 | 2012-01-13 | Detection device for oil tank respirator of small gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539090A (en) * | 2012-01-13 | 2012-07-04 | 嘉兴善拓机械有限公司 | Detection device for oil tank breather of small-sized gasoline engine |
| CN105509976A (en) * | 2014-10-16 | 2016-04-20 | 大陆汽车电子(长春)有限公司 | Leakage test method and device of engine control unit |
-
2012
- 2012-01-13 CN CN2012200147074U patent/CN202433165U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539090A (en) * | 2012-01-13 | 2012-07-04 | 嘉兴善拓机械有限公司 | Detection device for oil tank breather of small-sized gasoline engine |
| CN105509976A (en) * | 2014-10-16 | 2016-04-20 | 大陆汽车电子(长春)有限公司 | Leakage test method and device of engine control unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
|
| CX01 | Expiry of patent term |