JPS55132927A - Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engine - Google Patents
Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engineInfo
- Publication number
- JPS55132927A JPS55132927A JP4077979A JP4077979A JPS55132927A JP S55132927 A JPS55132927 A JP S55132927A JP 4077979 A JP4077979 A JP 4077979A JP 4077979 A JP4077979 A JP 4077979A JP S55132927 A JPS55132927 A JP S55132927A
- Authority
- JP
- Japan
- Prior art keywords
- compression pressure
- circuit means
- combustion engine
- internal combustion
- pressure fluctuation
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
Abstract
PURPOSE: To simplify measurememt by detecting the relative changes of the compression pressure of an internal combustion engine from the periodic change amounts of starter current.
CONSTITUTION: A convertion circuit means II, arithmetic circuit means II and display means IV are subsequently connected to a current detecting means I. As a result of this, the starter current detected by the current detecting means I or the signal corresponding to this is converted to a pulse signal by the conversion circuit means II, after which the period of the AC components corresponding to its increase direction is converted to the DC voltage signal proportional to this. Thence, the output of the conversion circuit means II is compared by the arithmetic circuit means III, by which the change amount thereof is operated and the calculated relative change amount of compression pressure is displayed in the display means IV.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4077979A JPS55132927A (en) | 1979-04-03 | 1979-04-03 | Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4077979A JPS55132927A (en) | 1979-04-03 | 1979-04-03 | Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55132927A true JPS55132927A (en) | 1980-10-16 |
JPS6310372B2 JPS6310372B2 (en) | 1988-03-07 |
Family
ID=12590105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4077979A Granted JPS55132927A (en) | 1979-04-03 | 1979-04-03 | Method and apparatus for measuring compression pressure fluctuation of multicylinder internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55132927A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348105A (en) * | 1976-10-12 | 1978-05-01 | Maabin Satsutofuin Jiyu Erudon | Method of testing compression force of engine by wave form of starter motor current |
JPS53107509A (en) * | 1977-03-02 | 1978-09-19 | Siemens Ag | Measuring system of proportional value to pressure in internal combustion engine |
-
1979
- 1979-04-03 JP JP4077979A patent/JPS55132927A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348105A (en) * | 1976-10-12 | 1978-05-01 | Maabin Satsutofuin Jiyu Erudon | Method of testing compression force of engine by wave form of starter motor current |
JPS53107509A (en) * | 1977-03-02 | 1978-09-19 | Siemens Ag | Measuring system of proportional value to pressure in internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JPS6310372B2 (en) | 1988-03-07 |
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