JPS624647B2 - - Google Patents
Info
- Publication number
- JPS624647B2 JPS624647B2 JP54155765A JP15576579A JPS624647B2 JP S624647 B2 JPS624647 B2 JP S624647B2 JP 54155765 A JP54155765 A JP 54155765A JP 15576579 A JP15576579 A JP 15576579A JP S624647 B2 JPS624647 B2 JP S624647B2
- Authority
- JP
- Japan
- Prior art keywords
- vibrating body
- knocking
- magnetic
- gap
- vibrating
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 19
- 230000004907 flux Effects 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 239000000696 magnetic material Substances 0.000 claims description 10
- 230000035945 sensitivity Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/223—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using magnetic or magnetostrictive means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15576579A JPS5679215A (en) | 1979-11-30 | 1979-11-30 | Knocking detector for internal combustion engine |
| US06/211,296 US4337643A (en) | 1979-11-30 | 1980-11-28 | Knock detecting apparatus for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15576579A JPS5679215A (en) | 1979-11-30 | 1979-11-30 | Knocking detector for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5679215A JPS5679215A (en) | 1981-06-29 |
| JPS624647B2 true JPS624647B2 (enExample) | 1987-01-31 |
Family
ID=15612912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15576579A Granted JPS5679215A (en) | 1979-11-30 | 1979-11-30 | Knocking detector for internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4337643A (enExample) |
| JP (1) | JPS5679215A (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7191658B2 (en) * | 2004-06-11 | 2007-03-20 | Denso Corporation | Pressure-detecting device and method of manufacturing the same |
| US20070256764A1 (en) * | 2005-08-25 | 2007-11-08 | Qingyou Han | Method of producing nanostructured metals using high-intensity ultrasonic vibration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7703222L (sv) * | 1976-03-30 | 1977-10-01 | Johnson Matthey Co Ltd | Accelerometer |
| US4096735A (en) * | 1977-02-11 | 1978-06-27 | General Motors Corporation | Engine detonation sensor with double shielded case |
| DE2801969C2 (de) * | 1978-01-18 | 1982-11-04 | Robert Bosch Gmbh, 7000 Stuttgart | Sensor für Schwingungen |
-
1979
- 1979-11-30 JP JP15576579A patent/JPS5679215A/ja active Granted
-
1980
- 1980-11-28 US US06/211,296 patent/US4337643A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4337643A (en) | 1982-07-06 |
| JPS5679215A (en) | 1981-06-29 |
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