JPH0241141U - - Google Patents
Info
- Publication number
- JPH0241141U JPH0241141U JP11954388U JP11954388U JPH0241141U JP H0241141 U JPH0241141 U JP H0241141U JP 11954388 U JP11954388 U JP 11954388U JP 11954388 U JP11954388 U JP 11954388U JP H0241141 U JPH0241141 U JP H0241141U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- check valve
- fuel tank
- atmosphere
- port
- 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.)
- Pending
Links
- 239000002828 fuel tank Substances 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Examining Or Testing Airtightness (AREA)
Description
第１図は本考案に係るチエツク装置の全体構成
を示す構成図、第２図はその報知装置を駆動する
電気系統の回路図、第３図はチエツク弁の断面図
である。
１：燃料タンク、１ａ：エバポ出口、５：チエ
ツク弁、７：エアスイツチ、８：開閉弁、９：エ
アレギユレータ、１０：エアタンク、２１：ＮＧ
警報ブザー、２２：ＯＫ表示灯、２３：スイツチ
、２４：バツテリ。
FIG. 1 is a block diagram showing the overall structure of a check device according to the present invention, FIG. 2 is a circuit diagram of an electric system for driving the notification device, and FIG. 3 is a sectional view of the check valve. 1: Fuel tank, 1a: Evaporator outlet, 5: Check valve, 7: Air switch, 8: Open/close valve, 9: Air regulator, 10: Air tank, 21: NG
Alarm buzzer, 22: OK indicator light, 23: switch, 24: battery.
Claims (1)
負圧になると大気をタンク内に導入し燃料タンク
内が所定値以上の正圧になるとその圧力を大気へ
抜気するチエツク弁の一方のポートが接続され、
このチエツク弁の他方のポートには、前記所定値
未満の圧力を供給するエア源が接続され、該エア
源とチエツク弁との間にはその間の圧力に応じて
接点が切換わるスイツチ手段が設けられ、このス
イツチ手段の前記接点が切換わるのに連動してチ
エツク弁の接続が正常であることおよび／または
異常であることを知らせる報知手段が設けられて
いることを特徴とする燃料タンクエバポ系の配管
チエツク装置。 The evaporator outlet of the fuel tank has one port of a check valve that introduces the atmosphere into the tank when the pressure inside the fuel tank becomes negative, and releases the pressure to the atmosphere when the pressure inside the fuel tank reaches a predetermined positive pressure. connected,
An air source that supplies a pressure below the predetermined value is connected to the other port of the check valve, and a switch means is provided between the air source and the check valve to change the contact depending on the pressure therebetween. The fuel tank evaporation system is characterized in that a notification means is provided in conjunction with the switching of the contact of the switch means to notify that the connection of the check valve is normal and/or abnormal. Piping check device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11954388U JPH0241141U (en) | 1988-09-12 | 1988-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11954388U JPH0241141U (en) | 1988-09-12 | 1988-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241141U true JPH0241141U (en) | 1990-03-22 |
Family
ID=31364863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11954388U Pending JPH0241141U (en) | 1988-09-12 | 1988-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241141U (en) |
-
1988
- 1988-09-12 JP JP11954388U patent/JPH0241141U/ja active Pending
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