JPS5744718A - System used in internal combustion engine for warning abnormal hydraulic pressure - Google Patents
System used in internal combustion engine for warning abnormal hydraulic pressureInfo
- Publication number
- JPS5744718A JPS5744718A JP12014980A JP12014980A JPS5744718A JP S5744718 A JPS5744718 A JP S5744718A JP 12014980 A JP12014980 A JP 12014980A JP 12014980 A JP12014980 A JP 12014980A JP S5744718 A JPS5744718 A JP S5744718A
- Authority
- JP
- Japan
- Prior art keywords
- comparison
- signal
- voltage
- hydraulic
- hydraulic pressure
- 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
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
PURPOSE: To provide the titled system for use in the internal combustion engine, which is capable of warning troubles in its lubricating oil correctly and automatically under any operational conditions of the engine.
CONSTITUTION: A voltage signal proportional to the engine speed, obtained a speed sensor 1, is afforded to a reference value setting circuit 3, which produces a hydraulic reference signal VL corresponding to the engine speed. On the other hand, a voltage signal proportional to the hydraulic pressure, obtained by a hydraulic-pressure sensor 2, is affored to an amplifying circuit 4, which produces a voltage signal VP. These two signals are supplied to a comparison circuit 6 for making comparison between them. Here, if the hydraulic output signal VP is lower than the reference voltage VL, a comparison signal of a predetermined voltage is produced. However, if the result of comparison is contrary, voltage of the comparison signal is rendered zero. In response to the comparison signal produced by the comparison circuit 6, current is supplied from a power source 9 to a warning means 8 by a driving circuit 7 for giving an alarm against the drop of hydraulic pressure.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12014980A JPS5744718A (en) | 1980-08-30 | 1980-08-30 | System used in internal combustion engine for warning abnormal hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12014980A JPS5744718A (en) | 1980-08-30 | 1980-08-30 | System used in internal combustion engine for warning abnormal hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5744718A true JPS5744718A (en) | 1982-03-13 |
Family
ID=14779168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12014980A Pending JPS5744718A (en) | 1980-08-30 | 1980-08-30 | System used in internal combustion engine for warning abnormal hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5744718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134309A (en) * | 1982-12-27 | 1984-08-02 | ブランズウイツク・コ−ポレ−シヨン | Oil jet alarm system |
| JPS61126008U (en) * | 1985-01-29 | 1986-08-07 | ||
| CN111441843A (en) * | 2020-05-06 | 2020-07-24 | 济南吉美乐电源技术有限公司 | Low oil pressure alarm device of gasoline engine |
-
1980
- 1980-08-30 JP JP12014980A patent/JPS5744718A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134309A (en) * | 1982-12-27 | 1984-08-02 | ブランズウイツク・コ−ポレ−シヨン | Oil jet alarm system |
| JPS61126008U (en) * | 1985-01-29 | 1986-08-07 | ||
| JPH0437216Y2 (en) * | 1985-01-29 | 1992-09-02 | ||
| CN111441843A (en) * | 2020-05-06 | 2020-07-24 | 济南吉美乐电源技术有限公司 | Low oil pressure alarm device of gasoline engine |
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