GB835158A - A combined ignition plug and pressure-responsive device for testing internal combustion engines - Google Patents
A combined ignition plug and pressure-responsive device for testing internal combustion enginesInfo
- Publication number
- GB835158A GB835158A GB3071957A GB3071957A GB835158A GB 835158 A GB835158 A GB 835158A GB 3071957 A GB3071957 A GB 3071957A GB 3071957 A GB3071957 A GB 3071957A GB 835158 A GB835158 A GB 835158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- insulator
- transducer
- pressure
- plug
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
835,158. Transducers. BRUCE PEEBLES & CO. Ltd., DUERDEN, F., NORMAN, G. P. F., and WATKINS, R. H. W. Sept. 30, 1958 [Oct. 1, 1957], No. 30719/57. Class 40(1). A transducer for' measuring the pressure variations inside the combustion chamber of an I.C. engine comprises an ignition plug, housing a piezoelectric element which is arranged to be subjected to the cylinder pressure. As shown (Fig. 1) a sparking plug transducer comprises a hollow steel body 11 and a central electrode 12 surrounded by an insulating sleeve 13 supported by a diaphragm 17 clamped to the body 11 along its outer circumference, and firmly attached to the central insulator 13 along its inner edge, thereby allowing small axial movements of the insulator 13. Located between a shoulder 25 of the insulator 13 and a screwed adjusting sleeve 23 are a cylindrical sleeve 26 of piezo-electric ceramic material and a washer 28, the sleeve 26 having silvered inner and outer faces which are connected by leads 29 to external voltage measuring apparatus. The E.M.F. output of the sleeve 26 is proportional to the internal cylinder pressure and may be shown on a cathode-ray oscilloscope. The interior of the body 11 may be water-cooled. In a second embodiment (Fig. 2, not shown) the diaphragm 17 is replaced by a resilient washer. The transducer may also be added to a glow plug for a compression-ignition engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3071957A GB835158A (en) | 1957-10-01 | 1957-10-01 | A combined ignition plug and pressure-responsive device for testing internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3071957A GB835158A (en) | 1957-10-01 | 1957-10-01 | A combined ignition plug and pressure-responsive device for testing internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB835158A true GB835158A (en) | 1960-05-18 |
Family
ID=10312069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3071957A Expired GB835158A (en) | 1957-10-01 | 1957-10-01 | A combined ignition plug and pressure-responsive device for testing internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB835158A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158285B (en) * | 1961-10-12 | 1963-11-28 | Daimler Benz Ag | Pressure transmitter assembled with a spark plug for examining the knocking process of internal combustion engines |
| EP0013702A1 (en) * | 1978-11-14 | 1980-08-06 | Creative Tool Company Corp. | Transducer device for monitoring pressure |
| EP1074828A2 (en) * | 1999-08-05 | 2001-02-07 | AVL List GmbH | Spark plug with pressure measuring device |
| WO2008074547A1 (en) * | 2006-12-18 | 2008-06-26 | Robert Bosch Gmbh | Pressure gauge |
| GB2489520A (en) * | 2011-03-31 | 2012-10-03 | Gm Global Tech Operations Inc | Pressure-measuring glow plug with seal |
-
1957
- 1957-10-01 GB GB3071957A patent/GB835158A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158285B (en) * | 1961-10-12 | 1963-11-28 | Daimler Benz Ag | Pressure transmitter assembled with a spark plug for examining the knocking process of internal combustion engines |
| EP0013702A1 (en) * | 1978-11-14 | 1980-08-06 | Creative Tool Company Corp. | Transducer device for monitoring pressure |
| EP1074828A2 (en) * | 1999-08-05 | 2001-02-07 | AVL List GmbH | Spark plug with pressure measuring device |
| EP1074828A3 (en) * | 1999-08-05 | 2002-04-03 | AVL List GmbH | Spark plug with pressure measuring device |
| WO2008074547A1 (en) * | 2006-12-18 | 2008-06-26 | Robert Bosch Gmbh | Pressure gauge |
| GB2489520A (en) * | 2011-03-31 | 2012-10-03 | Gm Global Tech Operations Inc | Pressure-measuring glow plug with seal |
| GB2489520B (en) * | 2011-03-31 | 2016-08-31 | Gm Global Tech Operations Llc | Bellow seal for glow plug with integrated piezo sensor for pressure measurement |
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