KR200155701Y1 - Leak test for fuel tank - Google Patents
Leak test for fuel tank Download PDFInfo
- Publication number
- KR200155701Y1 KR200155701Y1 KR2019950046697U KR19950046697U KR200155701Y1 KR 200155701 Y1 KR200155701 Y1 KR 200155701Y1 KR 2019950046697 U KR2019950046697 U KR 2019950046697U KR 19950046697 U KR19950046697 U KR 19950046697U KR 200155701 Y1 KR200155701 Y1 KR 200155701Y1
- Authority
- KR
- South Korea
- Prior art keywords
- canister
- fuel tank
- fuel
- air
- pressure sensor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
Abstract
본 고안은 자동차의 연료탱크계 누출검사장치에 관한 것이다.The present invention relates to a fuel tank leak inspection apparatus of a vehicle.
본 고안은 연료탱크계에 있어서의 압력 또는 연료의 누출이 발생하고 있는지를 검사할 수 있도록 하기 위하여, 압력센서(1)가 연료주입구(2)에 장착된 연료탱크(3)와, 이 연료탱크(3) 내의 팽창가스를 받아 연료입자를 저장하는 캐니스터(4)와, 이 캐니스터(4)를 차단시킬 수 있는 캐니스터 크로스 밸브(5), 그리고 상기 캐니스터(4)에 설치되는 퍼지 콘트롤 밸브(6)로 이루어진 연료탱크계에 있어서, 상기 캐니스터(4)에 에어탱크(7)로 부터의 에어를 공급할 수 있는 에어주입밸브(8)를 설치하고, 이 에어주입밸브(8)를 개방시킨 후 상기 압력센서(1)의 입력신호를 읽을 수 있는 전자제어유니트(9)를 구비시킨 것이다.The present invention provides a fuel tank (3) equipped with a pressure sensor (1) attached to the fuel inlet (2), so that the pressure in the fuel tank system or fuel leakage can be examined. (3) a canister (4) for receiving fuel gas and storing fuel particles therein, a canister cross valve (5) capable of blocking the canister (4), and a purge control valve (6) provided at the canister (4). In the fuel tank system consisting of a), an air injection valve (8) for supplying air from the air tank (7) is installed in the canister (4), and the air injection valve (8) is opened and then An electronic control unit 9 capable of reading the input signal of the pressure sensor 1 is provided.
Description
제1도는 종래의 연료탱크계 구성도.1 is a conventional fuel tank system configuration.
제2도는 본 고안의 실시예의 구성도.2 is a block diagram of an embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 압력센서 3 : 연료탱크1: pressure sensor 3: fuel tank
4 : 캐니스터 5 : 캐니스터 크로스 밸브4: canister 5: canister cross valve
6 : 퍼지 콘트롤 밸브 7 : 에어탱크6: purge control valve 7: air tank
8 : 에어주입밸브 9 : 전자제어유니트8: Air injection valve 9: Electronic control unit
본 고안은 자동차의 연료탱크계 누출검사장치에 관한 것이다.The present invention relates to a fuel tank leak inspection apparatus of a vehicle.
종래의 연료탱크계, 특히 제1도와 같이 압력센서(1)가 연료주입구(2)에 장착된 연료탱크(3)와, 이 연료탱크(3) 내의 팽창가스를 받아 연료입자를 저장하는 캐니스터(4)를 차단시킬 수 있는 캐니스터 크로스 밸브(5), 그리고 상기 캐니스터(4)에 설치되는 퍼지 콘트롤 밸브(6)로 이루어져 있다.In the conventional fuel tank system, in particular, the fuel tank 3 in which the pressure sensor 1 is mounted on the fuel inlet 2 as shown in FIG. 1, and a canister that receives the expansion gas in the fuel tank 3 and stores fuel particles ( It consists of a canister cross valve (5) which can block 4), and a purge control valve (6) installed in the canister (4).
그러나, 이와 같은 종래의 연료탱크계에서는 압력 또는 연료가 새는 것을 알 수 없어 문제가 되고 있다.However, such a conventional fuel tank system is problematic because it is not known that the pressure or the fuel leaks.
본 고안의 목적은 상기와 같은 연료탱크계에 있어서의 압력 또는 연료의 누출이 발생하고 있는지를 검사할 수 있는 연료탱크계 누출검사장치를 제공하는데 있는 것이다.It is an object of the present invention to provide a fuel tank system leak inspection apparatus capable of inspecting whether a pressure or fuel leak in the fuel tank system is occurring.
본 고안은 상기 목적을 달성하기 위하여, 캐니스터에 에어팅크로 부터의 에어를 공급할 수 있는 에어주입밸브를 설치하고, 이 에어주입밸브를 개방시킨 후 상기 압력센서의 입력신호를 읽을 수 있는 전자제어유니트를 구비시킨 것이다.In order to achieve the above object, the present invention provides an air control valve that can supply air from an air tink to a canister, and opens the air injection valve to read an input signal of the pressure sensor. It is equipped with.
이하 본 고안의 실시예를 첨부된 도면에 의하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
본 고안은 제2도와 같이 압력센서(1)가 연료주입구(2)에 장착된 연료탱크(3)와, 이 연료탱크(3) 내의 팽창가스를 받아 연료입자를 저장하는 캐니스터(4)와, 이 캐니스터(4)를 차단시킬 수 있는 캐니스터 크로스 밸브(5), 그리고 상기 캐니스터(4)에 설치되는 퍼지 콘트롤 밸브(6)로 이루어진 연료탱크계에 있어서, 상기 캐니스터(4)에 에어탱크(7)로 부터의 에어를 공급할 수 있는 에어주입밸브(8)를 설치하고, 이 에어주입밸브(8)를 개방시킨 후 상기 압력센서(1)의 입력신호를 읽을 수 있는 전자제어유니트(9)를 구비시킨 것이다.The present invention is a fuel tank (3) equipped with a pressure sensor (1) in the fuel inlet (2), the canister (4) for receiving the expansion gas in the fuel tank (3) and stores the fuel particles as shown in FIG. In the fuel tank system which consists of the canister cross valve 5 which can block this canister 4, and the purge control valve 6 provided in the canister 4, the canister 4 has an air tank 7 An air injection valve (8) for supplying air from the air, and the electronic control unit (9) for reading the input signal of the pressure sensor (1) after opening the air injection valve (8). It is equipped.
상기 전자제어유니트(9)는 에어주입밸브(8)와 압력센서(1)에 각각 전기적으로 연결된 것으로, 연료탱크계 내의 압력이 일정압력이 되도록 에어주입밸브(8)를 개방한 후 폐쇄시키고나서 압력센서(1)의 입력신호가 변화되는 량을 측정한다.The electronic control unit 9 is electrically connected to the air injection valve 8 and the pressure sensor 1, respectively. After opening and closing the air injection valve 8 so that the pressure in the fuel tank system becomes a constant pressure, Measure the amount of change in the input signal of the pressure sensor (1).
따라서, 압력센서(1)의 신호에 의하여 얻어지는 값에 의하여 연료탱크계 내에서 누츨이 있느냐 없느냐를 판단할 수 있는 것이다.Therefore, it is possible to judge whether or not there is leakage in the fuel tank system based on the value obtained by the signal of the pressure sensor 1.
상기와 같이 구성된 본 고안은 연료탱크계의 누출관련 모니터에 신뢰성이 상승되는 효과가 있는 것이다.The present invention configured as described above has the effect of increasing the reliability of the fuel tank-related monitor.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950046697U KR200155701Y1 (en) | 1995-12-23 | 1995-12-23 | Leak test for fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950046697U KR200155701Y1 (en) | 1995-12-23 | 1995-12-23 | Leak test for fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970045065U KR970045065U (en) | 1997-07-31 |
| KR200155701Y1 true KR200155701Y1 (en) | 1999-09-01 |
Family
ID=19437747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950046697U KR200155701Y1 (en) | 1995-12-23 | 1995-12-23 | Leak test for fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200155701Y1 (en) |
-
1995
- 1995-12-23 KR KR2019950046697U patent/KR200155701Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970045065U (en) | 1997-07-31 |
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