JPH0332169U - - Google Patents
Info
- Publication number
- JPH0332169U JPH0332169U JP9205789U JP9205789U JPH0332169U JP H0332169 U JPH0332169 U JP H0332169U JP 9205789 U JP9205789 U JP 9205789U JP 9205789 U JP9205789 U JP 9205789U JP H0332169 U JPH0332169 U JP H0332169U
- Authority
- JP
- Japan
- Prior art keywords
- fuel pump
- self
- diagnosis device
- output
- wire breakage
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 12
- 238000004092 self-diagnosis Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 1
Landscapes
- Emergency Alarm Devices (AREA)
Description
第1図および第2図は本考案の実施例に係り、
第1図はホツトリスタートバルブの縦断面図、第
2図は燃料ポンプの自己診断装置を示す回路構成
図、第3図および第4図は従来技術に係り、第3
図は燃料ポンプを燃料タンク内に組付けた状態を
示す部分断面図、第4図は従来技術による燃料ポ
ンプの自己診断装置を示す回路構成図である。
4…燃料ポンプ、5…モータ部、6…ポンプ部
、20…断線検出器、23…報知器、36…リフ
ト検出器(ベーパ発生検出手段)、39…アンド
回路(出力禁止手段)。
1 and 2 relate to an embodiment of the present invention,
Fig. 1 is a vertical sectional view of the hot restart valve, Fig. 2 is a circuit diagram showing a fuel pump self-diagnosis device, Figs. 3 and 4 are related to the prior art, and Fig.
FIG. 4 is a partial sectional view showing a fuel pump assembled into a fuel tank, and FIG. 4 is a circuit configuration diagram showing a self-diagnosis device for a fuel pump according to the prior art. 4... Fuel pump, 5... Motor section, 6... Pump section, 20... Disconnection detector, 23... Alarm, 36... Lift detector (vapor generation detection means), 39... AND circuit (output prohibition means).
Claims (1)
該燃料ポンプのモータ部の断面を検出する断線検
出器と、該断線検出器が断線を検出したとき燃料
ポンプの異常を報知する報知器とから構成してな
る燃料ポンプの自己診断装置において、前記燃料
ポンプ内でベーパが発生したか否かを検出するベ
ーパ発生検出手段と、該ベーパ発生検出手段から
ベーパ発生信号が出力されているときには、前記
断線検出器から報知器に断線検出信号が出力され
るのを禁止する出力禁止手段とを設けたことを特
徴とする燃料ポンプの自己診断装置。 A fuel pump consisting of a motor part and a pump part,
In the self-diagnosis device for a fuel pump, the fuel pump self-diagnosis device comprises a wire breakage detector that detects a cross section of a motor section of the fuel pump, and an alarm that notifies the fuel pump of an abnormality when the wire breakage detector detects a wire breakage. Vapor generation detection means detects whether vapor has occurred in the fuel pump, and when a vapor generation signal is output from the vapor generation detection means, a disconnection detection signal is output from the disconnection detector to the alarm. A self-diagnosis device for a fuel pump, characterized in that the self-diagnosis device for a fuel pump is provided with an output prohibition means for prohibiting the output from occurring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9205789U JPH0545816Y2 (en) | 1989-08-04 | 1989-08-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9205789U JPH0545816Y2 (en) | 1989-08-04 | 1989-08-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0332169U true JPH0332169U (en) | 1991-03-28 |
JPH0545816Y2 JPH0545816Y2 (en) | 1993-11-26 |
Family
ID=31641504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9205789U Expired - Lifetime JPH0545816Y2 (en) | 1989-08-04 | 1989-08-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0545816Y2 (en) |
-
1989
- 1989-08-04 JP JP9205789U patent/JPH0545816Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0545816Y2 (en) | 1993-11-26 |