GB1371720A - Detection of combustion characteristics of internal combustionengine - Google Patents
Detection of combustion characteristics of internal combustionengineInfo
- Publication number
- GB1371720A GB1371720A GB4977272A GB4977272A GB1371720A GB 1371720 A GB1371720 A GB 1371720A GB 4977272 A GB4977272 A GB 4977272A GB 4977272 A GB4977272 A GB 4977272A GB 1371720 A GB1371720 A GB 1371720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- transducer
- fixing means
- variation
- block
- 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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/08—Testing internal-combustion engines by monitoring pressure in cylinders
-
- 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
- G01L23/222—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 piezoelectric devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
1371720 Measuring pressure electrically SNAM PROGETTI SpA 27 Oct 1972 [11 Nov 1971] 49772/72 Heading G1N In an I.C. engine having a cylinder block 2 and a head 3 fixed to the block by fixing means under tension, a device 11, capable of emitting a signal or varying an emitted signal in accordance with variation in the pressure to which it is subjected, is held in position in a state of compression by one of the fixing means, the arrangement being such that variation in pressure in the combustion chamber(s) causes variation in tension of the fixing means and hence variation in the pressure to which the device is subjected. As shown, the fixing means comprise a plurality of nuts 9 arranged on stud bolts 10 secured to the block. The device 11 consists of a transducer, e.g. of the Piezo-electric type, in the form of a washer of the same size as the washers (not shown) arranged on the other bolts. Alternatively, the transducer may be in the form of a dynamometric nut or any other device capable of detecting the clamping conditions of the head to the block. The transducer is shown connected to an amplifier 12 whose output is connected to an oscilloscope 13, a recorder 14, and a meter 15. More than one transducer may be provided. Monitoring of the pressure in the cylinder(s) enables detection of anomalous combustion phenomena e.g. detonation, knocking, preignition, misfiring, after running and cyclic dispersion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT3094671A IT941741B (en) | 1971-11-11 | 1971-11-11 | DEVICE FOR THE DETECTION OF UNEXPECTED COMBUSTION PHENOMENA ON INTERNAL COMBUSTION ENGINES BY MEANS OF TRANSDUCERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1371720A true GB1371720A (en) | 1974-10-23 |
Family
ID=11232819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4977272A Expired GB1371720A (en) | 1971-11-11 | 1972-10-27 | Detection of combustion characteristics of internal combustionengine |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT325899B (en) |
| BE (1) | BE790870A (en) |
| CH (1) | CH563576A5 (en) |
| CS (1) | CS167363B2 (en) |
| DE (1) | DE2254267C3 (en) |
| DK (1) | DK135914B (en) |
| ES (1) | ES408442A1 (en) |
| FR (1) | FR2159988A5 (en) |
| GB (1) | GB1371720A (en) |
| HU (1) | HU169612B (en) |
| IT (1) | IT941741B (en) |
| LU (1) | LU66456A1 (en) |
| NL (1) | NL7214359A (en) |
| PL (1) | PL79700B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3021088A1 (en) * | 1980-06-04 | 1981-12-10 | Robert Bosch Gmbh, 7000 Stuttgart | Capacitive press. sensor e.g. for IC engines - has dielectric and two electrodes formed as disc or tube |
| WO2015195032A1 (en) * | 2014-06-17 | 2015-12-23 | Scania Cv Ab | Internal combustion engine and method for detecting operating conditions of an internal combustion engine |
| WO2015195034A1 (en) * | 2014-06-17 | 2015-12-23 | Scania Cv Ab | Method and device for compression diagnosis of an internal combustion engine. |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036050A (en) * | 1976-03-24 | 1977-07-19 | Dooley Joseph L | Engine monitoring apparatus |
| DE2803721A1 (en) * | 1978-01-28 | 1979-08-09 | Bosch Gmbh Robert | Engine bolt with combined pressure transducer - has piezoelectric element bonded to bolt head to respond to pressures caused by detonation or pinking |
-
1971
- 1971-11-11 IT IT3094671A patent/IT941741B/en active
-
1972
- 1972-10-24 NL NL7214359A patent/NL7214359A/xx unknown
- 1972-10-27 GB GB4977272A patent/GB1371720A/en not_active Expired
- 1972-10-27 CS CS725572A patent/CS167363B2/cs unknown
- 1972-10-31 ES ES408442A patent/ES408442A1/en not_active Expired
- 1972-11-03 BE BE790870D patent/BE790870A/en unknown
- 1972-11-03 FR FR7238884A patent/FR2159988A5/fr not_active Expired
- 1972-11-06 PL PL15866672A patent/PL79700B1/pl unknown
- 1972-11-06 DE DE19722254267 patent/DE2254267C3/en not_active Expired
- 1972-11-09 DK DK556272A patent/DK135914B/en unknown
- 1972-11-10 LU LU66456D patent/LU66456A1/xx unknown
- 1972-11-10 HU HUSA002418 patent/HU169612B/hu unknown
- 1972-11-11 CH CH1645672A patent/CH563576A5/xx not_active IP Right Cessation
- 1972-11-13 AT AT963372A patent/AT325899B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3021088A1 (en) * | 1980-06-04 | 1981-12-10 | Robert Bosch Gmbh, 7000 Stuttgart | Capacitive press. sensor e.g. for IC engines - has dielectric and two electrodes formed as disc or tube |
| WO2015195032A1 (en) * | 2014-06-17 | 2015-12-23 | Scania Cv Ab | Internal combustion engine and method for detecting operating conditions of an internal combustion engine |
| WO2015195034A1 (en) * | 2014-06-17 | 2015-12-23 | Scania Cv Ab | Method and device for compression diagnosis of an internal combustion engine. |
Also Published As
| Publication number | Publication date |
|---|---|
| AT325899B (en) | 1975-11-10 |
| ES408442A1 (en) | 1975-11-16 |
| CS167363B2 (en) | 1976-04-29 |
| DE2254267A1 (en) | 1973-05-24 |
| CH563576A5 (en) | 1975-06-30 |
| NL7214359A (en) | 1973-05-15 |
| ATA963372A (en) | 1975-01-15 |
| DE2254267B2 (en) | 1974-08-29 |
| DE2254267C3 (en) | 1975-04-24 |
| BE790870A (en) | 1973-05-03 |
| FR2159988A5 (en) | 1973-06-22 |
| LU66456A1 (en) | 1973-02-01 |
| HU169612B (en) | 1976-12-28 |
| IT941741B (en) | 1973-03-10 |
| DK135914B (en) | 1977-07-11 |
| PL79700B1 (en) | 1975-06-30 |
| DK135914C (en) | 1977-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |