WO1998017988A1 - Capteur de pression de combustion a fibre optique integree - Google Patents

Capteur de pression de combustion a fibre optique integree Download PDF

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Publication number
WO1998017988A1
WO1998017988A1 PCT/US1996/016973 US9616973W WO9817988A1 WO 1998017988 A1 WO1998017988 A1 WO 1998017988A1 US 9616973 W US9616973 W US 9616973W WO 9817988 A1 WO9817988 A1 WO 9817988A1
Authority
WO
WIPO (PCT)
Prior art keywords
spark plug
pressure sensor
boot
optical fiber
optical
Prior art date
Application number
PCT/US1996/016973
Other languages
English (en)
Inventor
Marek T. Wlodarczyk
Original Assignee
Optrand, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Optrand, Inc. filed Critical Optrand, Inc.
Priority to US09/297,114 priority Critical patent/US6122971A/en
Priority to PCT/US1996/016973 priority patent/WO1998017988A1/fr
Priority to AU75192/96A priority patent/AU7519296A/en
Publication of WO1998017988A1 publication Critical patent/WO1998017988A1/fr

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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light

Abstract

Cette invention se rapporte à un ensemble capteur de pression optique intégré à une bougie d'allumage (16) et à son couvre-borne (12). Le capteur de pression se compose d'une fibre optique (34) dont la pointe est équipée d'un diaphragme (36) conçu pour détecter la pression et les changements de pression qui s'opèrent à l'intérieur de la chambre de combustion (32) du moteur à explosion. La bougie d'allumage est munie d'un canal (30) qui sert à maintenir le capteur. Le diaphragme (36) du capteur est plus près de l'électrode à étincelles qu'il ne l'est du conducteur électrique enchâssé dans le couvre-borne (12). La fibre optique (34) est placée à l'intérieur d'une tige qui est guidée à travers le couvre-borne (12) et jusqu'à l'intérieur du canal (30). La fibre optique (34) est reliée fonctionnellement et électriquement à l'organe de commande du moteur du véhicule. La connexion opto-électrique jusqu'au contrôleur du véhicule est assurée à proximité d'une bobine (72) dans le couvre-borne (12) ou à distance de la bobine (72). La fibre (34) est entourée par une tige non métallique (22) à l'extérieur du moteur. A l'intérieur du couvre-borne (16), la tige est métallique.
PCT/US1996/016973 1996-10-23 1996-10-23 Capteur de pression de combustion a fibre optique integree WO1998017988A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09/297,114 US6122971A (en) 1996-10-23 1996-10-23 Integrated fiber optic combustion pressure sensor
PCT/US1996/016973 WO1998017988A1 (fr) 1996-10-23 1996-10-23 Capteur de pression de combustion a fibre optique integree
AU75192/96A AU7519296A (en) 1996-10-23 1996-10-23 Integrated fiber optic combustion pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1996/016973 WO1998017988A1 (fr) 1996-10-23 1996-10-23 Capteur de pression de combustion a fibre optique integree

Publications (1)

Publication Number Publication Date
WO1998017988A1 true WO1998017988A1 (fr) 1998-04-30

Family

ID=22256007

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/016973 WO1998017988A1 (fr) 1996-10-23 1996-10-23 Capteur de pression de combustion a fibre optique integree

Country Status (2)

Country Link
AU (1) AU7519296A (fr)
WO (1) WO1998017988A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002008714A1 (fr) * 2000-07-21 2002-01-31 Robert Bosch Gmbh Bougie d'allumage destinee a recevoir un capteur de pression et prise de bougie d'allumage associee
US7207214B1 (en) * 2004-02-17 2007-04-24 Wlodarczyk Marek T Glow plug integrated pressure sensor

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393687A (en) * 1980-01-18 1983-07-19 Robert Bosch Gmbh Sensor arrangement
US4412446A (en) * 1981-03-20 1983-11-01 Robert Bosch Gmbh Optical combustion sensor, particularly for use with internal combustion engines
US4413509A (en) * 1980-12-04 1983-11-08 Robert Bosch Gmbh Combustion process parameter sensor
US4437334A (en) * 1981-02-13 1984-03-20 Franz Pischinger Method and apparatus for detecting knocking combustion
US4444043A (en) * 1980-10-27 1984-04-24 Nippon Soken, Inc. Knocking detector for internal combustion engine
US4452072A (en) * 1981-10-07 1984-06-05 Robert Bosch Gmbh Combustion condition sensor
US4621603A (en) * 1985-10-29 1986-11-11 General Motors Corporation Engine combustion control with fuel balancing by pressure ratio management
US4687927A (en) * 1984-12-13 1987-08-18 Kabushiki Kaisha Toshiba Pressure measuring system
US4711246A (en) * 1986-09-02 1987-12-08 Fiberoptic Sensor Technologies, Inc. Fiber optic coupled pressure transducer using single fiber and method of fabrication
US4781059A (en) * 1985-07-10 1988-11-01 Hitachi, Ltd. Method and apparatus for detecting combustion pressure in engine
US4924870A (en) * 1989-01-13 1990-05-15 Fiberoptic Sensor Technologies, Inc. Fiber optic sensors
US4969353A (en) * 1985-04-23 1990-11-13 Robert Bosch Gmbh Spark plug with a pressure measuring device
US5052214A (en) * 1989-01-03 1991-10-01 Luxtron Corporation Knock detector using optical fiber thermometer
US5095741A (en) * 1988-04-02 1992-03-17 Robert Bosch Gmbh Pressure transducer for determining the pressure in the combustion chamber of an internal combustion engine
US5099683A (en) * 1990-05-22 1992-03-31 Barrack Technology Limited Method and apparatus for determining certain operating and running parameters in an internal combustion engine
US5099681A (en) * 1989-01-03 1992-03-31 Luxtron Corporation Knock detector using optical fiber thermometer
US5101659A (en) * 1990-04-12 1992-04-07 Nissan Motor Co., Ltd. Mounting device for pressure sensor
US5275053A (en) * 1991-08-21 1994-01-04 Fiberoptic Sensor Technologies, Inc. Fiber optic pressure sensor systems
US5333487A (en) * 1991-11-15 1994-08-02 Hughes Aircraft Company Spark-excited fluorescence sensor
US5390546A (en) * 1993-07-01 1995-02-21 Wlodarczyk; Marek T. Fiber optic diaphragm sensors for engine knock and misfire detection
US5421195A (en) * 1993-07-01 1995-06-06 Wlodarczyk; Marek T. Fiber optic microbend sensor for engine knock and misfire detection
US5425371A (en) * 1992-10-05 1995-06-20 Metatech Corporation Fiberoptic pressure transducer
US5446279A (en) * 1993-08-27 1995-08-29 Hughes Aircraft Company Fiber optic sensor sensing curvature of a diaphragm

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393687A (en) * 1980-01-18 1983-07-19 Robert Bosch Gmbh Sensor arrangement
US4444043A (en) * 1980-10-27 1984-04-24 Nippon Soken, Inc. Knocking detector for internal combustion engine
US4413509A (en) * 1980-12-04 1983-11-08 Robert Bosch Gmbh Combustion process parameter sensor
US4437334A (en) * 1981-02-13 1984-03-20 Franz Pischinger Method and apparatus for detecting knocking combustion
US4412446A (en) * 1981-03-20 1983-11-01 Robert Bosch Gmbh Optical combustion sensor, particularly for use with internal combustion engines
US4452072A (en) * 1981-10-07 1984-06-05 Robert Bosch Gmbh Combustion condition sensor
US4687927A (en) * 1984-12-13 1987-08-18 Kabushiki Kaisha Toshiba Pressure measuring system
US4969353A (en) * 1985-04-23 1990-11-13 Robert Bosch Gmbh Spark plug with a pressure measuring device
US4781059A (en) * 1985-07-10 1988-11-01 Hitachi, Ltd. Method and apparatus for detecting combustion pressure in engine
US4621603A (en) * 1985-10-29 1986-11-11 General Motors Corporation Engine combustion control with fuel balancing by pressure ratio management
US4711246A (en) * 1986-09-02 1987-12-08 Fiberoptic Sensor Technologies, Inc. Fiber optic coupled pressure transducer using single fiber and method of fabrication
US5095741A (en) * 1988-04-02 1992-03-17 Robert Bosch Gmbh Pressure transducer for determining the pressure in the combustion chamber of an internal combustion engine
US5052214A (en) * 1989-01-03 1991-10-01 Luxtron Corporation Knock detector using optical fiber thermometer
US5099681A (en) * 1989-01-03 1992-03-31 Luxtron Corporation Knock detector using optical fiber thermometer
US4924870A (en) * 1989-01-13 1990-05-15 Fiberoptic Sensor Technologies, Inc. Fiber optic sensors
US5101659A (en) * 1990-04-12 1992-04-07 Nissan Motor Co., Ltd. Mounting device for pressure sensor
US5099683A (en) * 1990-05-22 1992-03-31 Barrack Technology Limited Method and apparatus for determining certain operating and running parameters in an internal combustion engine
US5275053A (en) * 1991-08-21 1994-01-04 Fiberoptic Sensor Technologies, Inc. Fiber optic pressure sensor systems
US5385053A (en) * 1991-08-21 1995-01-31 Fiberoptic Sensor Technologies Fiber optic pressure sensor systems
US5333487A (en) * 1991-11-15 1994-08-02 Hughes Aircraft Company Spark-excited fluorescence sensor
US5425371A (en) * 1992-10-05 1995-06-20 Metatech Corporation Fiberoptic pressure transducer
US5390546A (en) * 1993-07-01 1995-02-21 Wlodarczyk; Marek T. Fiber optic diaphragm sensors for engine knock and misfire detection
US5421195A (en) * 1993-07-01 1995-06-06 Wlodarczyk; Marek T. Fiber optic microbend sensor for engine knock and misfire detection
US5446279A (en) * 1993-08-27 1995-08-29 Hughes Aircraft Company Fiber optic sensor sensing curvature of a diaphragm

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002008714A1 (fr) * 2000-07-21 2002-01-31 Robert Bosch Gmbh Bougie d'allumage destinee a recevoir un capteur de pression et prise de bougie d'allumage associee
US6952948B2 (en) 2000-07-21 2005-10-11 Robert Bosch Gmbh Spark plug for receiving a pressure sensor and corresponding spark plug connector
US7207214B1 (en) * 2004-02-17 2007-04-24 Wlodarczyk Marek T Glow plug integrated pressure sensor

Also Published As

Publication number Publication date
AU7519296A (en) 1998-05-15

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