[특허]Sparkplug/pressure sensor device

[미국특허] Sparkplug/pressure sensor device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01L-023/22
출원번호	US-0541331 (1995-10-10)
발명자 / 주소	Meyer Roy C. (Milwaukee WI)
출원인 / 주소	Southwest Research Institute (San Antonio TX 02)
인용정보	피인용 횟수 : 18 인용 특허 : 19

초록 ▼

A pressure transducer suitable for use in measuring the pressures created by the combustive events that occur in internal combustion engines. The transducer utilizes the magnetostrictive effect to measure stress waves present in magnetized metallic components associated with sparkplug devices typically placed in apertures into internal combustion engine cylinders. The present invention includes a replacement sparkplug device that incorporates a pickup coil for measuring magnetostrictive events within the magnetized metal components of the sparkplug device and alternatively a sparkplug boot cover that separately incorporates a removable pickup coil for measuring the stress waves. In either embodiment, the present invention utilizes the magnetostrictive sensor signals measured as a basis for identifying internal combustion cylinder pressures and for identifying the characteristics of the ignition events within the cylinder. The invention incorporates electronic components appropriate for multiplexing, amplifying, and filtering signals from a number of cylinders within a engine and analyzing and processing this information in a manner that allows both the identification of problems associated with combustion in the engine and, in some cases, the correction of these problems on a realtime feedback basis.

대표청구항 ▼

A transducer for measuring stress waves indicative of characteristics of combustive events present within an internal combustion engine, said transducer comprising: a ceramic cylinder; a first electrode coaxially surrounded by said ceramic cylinder, and exposed at both a first and second end of said ceramic cylinder; a magnetized ferromagnetic collar surrounding and adhered to a section of said ceramic cylinder, said collar comprising a threaded section appropriate for insertion into threaded apertures present in internal combustion engine cylinder heads, and a bolt section appropriate for receiving standard sparkplug wrenches in a manner that allows said transducer to be inserted into said cylinder head; a second electrode electrically conductive with and attached to said magnetized ferromagnetic collar, said second electrode positioned near said second end of said ceramic cylinder to form a spark gap between said first and second electrodes; and a wire coil wound on a bobbin, said bobbin removably surrounding said magnetized ferromagnetic collar, said wire coil terminating in signal conductors directed away from said transducer, said wire coil and said bobbin encased in a pliable boot, said boot configured to receive said first end of said ceramic cylinder and said first electrode exposed therein, and to position said coil around said magnetized ferromagnetic collar, said boot further encasing said signal conductors and directing said conductors away from said transducer; wherein said combustive events impart stress waves into said ceramic cylinder and said stress waves travel into said magnetized ferromagnetic collar and therein generate magnetic field fluctuations that in turn generate current flow in said wire coil, the said current flow having timing and amplitude characteristics indicative of said characteristics of said combustive events.

이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

Sellnau Mark C. (Bloomfield Hills MI), Combustion pressure sensor.
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Sawamoto Kunifumi (Yokosuka JPX) Nagaishi Hatsuo (Zushi PA JPX) Takeuchi Kiyoshi (University Park PA), Combustion pressure sensor arrangement.
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Kojima Takao (Nagoya JPX) Matsubara Yoshiaki (Nagoya JPX) Kondo Mitsuru (Nagoya JPX), Device for detecting change in internal pressure of cylinder.
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Vigmostad Erik B. (Fairfield IA) Klauber Robert D. (Fairfield IA) Sprague Frederick P. (Fairfield IA), Engine misfire, knock of roughness detection method and apparatus.
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West ; Gene A., Engine spark timing system with retard means and minimum burn timer.
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Murata Shigemi (Himeji JPX) Ikeuchi Masayuki (Himeji JPX), Ignition plug for an internal combustion engine provided with an ionization current detector electrode.
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Sobel Jarl (Vsters SEX) rnholmer Lars (Vsters SEX), Magetoelastic force transducer.
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Adolph Norbert (Aachen DEX), Magnetostrictive element for measuring knock in engines.
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Buck Charles E. (Anderson IN) Johnson James M. (Anderson IN) Joseph Paul A. (Anderson IN), Magnetostrictive engine detonation sensor.
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Portier Jean L. (Paris FRX), Method for measuring stresses or forces.
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Takeuchi Kiyoshi (Yokohama JPX), Mounting device for pressure sensor.
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Kusakabe Hiroki (Osaka JPX) Takigawa Masuo (Ikoma JPX), Piezoelectric pressure sensor.
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Benedikt Walter (Kornwestheim DEX) Vogel Manfred (Ditzingen-Heimerdingen DEX) Herden Werner (Gerlingen DEX) Konrad Johann (Tamm DEX) Schmidt Wolfgang (Vaihingen/Enz DEX) Tosch Josef (Schwieberdingen , Pressure sensor for detecting the pressure in the combustion chamber of internal-combustion engines.
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Shoji Rihito (Yawata JPX) Hase Hiroyuki (Kyoto JPX) Wakamiya Masayuki (Suita JPX), Pressure sensor utilizing a magnetostriction effect.
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Shoji Rihito (Yawata JPX) Hase Hiroyuki (Kyoto JPX) Wakamiya Masayuki (Suita JPX), Pressure sensor utilizing magnetostriction effect.
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Dahle Orvar (Vsteras SEX) Hoffman Bertil (Kolbck SEX) Nordvall Jan (Vsteras SEX) Siby Sture (Vsteras SEX) Widehn Ake (Vsteras SEX), Pressure-sensing transducer.
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Amano Kouzou (Nagoya JPX) Saiki Yoshiaki (Nagoya JPX) Matsumura Shuzo (Nagoya JPX), Spark plug pressure sensor.
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Suzuki Takahiro (Nagoya JPX) Okazaki Kouji (Nagoya JPX), Spark plug with built-in pressure sensor.
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Anderson ; III Philip M. (Chatham NJ) Raskin Donald (New York NY) Reich Ronald K. (Phillipsburg NJ), Tuned vibration detector.
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이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

Cuva,William J., High temperature dynamic seal for scramjet variable geometry.
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Alholm, Hannes A., Igniter with integral pressure sensing line.
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Miwa, Tetsuya; Mizutani, Atsuya; Maekawa, Takeo; Hiramatsu, Hiromi; Yoshinaga, Tohru, Ignition device for an internal combustion engine.
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Boyer James Alva ; Ogden Jeffrey Dan ; Wright James Tordt, Integrated spark plug ignition coil with pressure sensor for an internal combustion engine.
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Harris,Ralph E.; Bourn,Gary D.; Smalley,Anthony J., Internal combustion engine cylinder-to-cylinder balancing with balanced air-fuel ratios.
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Kwun Hegeon, Load sensor for measuring engine cylinder pressure and seat occupant weight.
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Craig A. Grimes ; Plamen G. Stoyanov ; Dimitris Kouzoudis, Magnetoelastic sensing apparatus and method for remote pressure query of an environment.
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Bachas, Leonidas G.; Barrett, Gary; Grimes, Craig A.; Kouzoudis, Dimitris; Schmidt, Stefan, Magnetoelastic sensor for characterizing properties of thin-film/coatings.
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Baudendistel,Thomas A.; Klode,Harald; Morelli,Donald T.; Lequesne,Bruno P. B., Magnetostrictive fluid-pressure sensor.
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Hedayat, Kayvan; Poirier, Norman, Non-contact engine parameter sensor.
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Hamaoka,Osamu, Optical pickup system with light receiving portion.
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Ford, Dean M.; Hageman, Diane E.; Kiess, Ronald J.; Noel, Robert A., Spark apparatus with pressure signal response amplification.
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Kiess, Ronald J.; Noel, Robert A.; Wright, James Tordt; Boyer, James Alva; Bell, Matthew W., Spark generating apparatus having strain gage cylinder pressure measurement feature.
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Okazaki, Koji; Matsui, Masayoshi; Suzuki, Takahiro, Spark plug cap and spark plug fitting method.
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Hotta, Nobuyuki; Kodera, Eiji; Ohbayashi, Kazushige; Sugimoto, Noriyasu, Spark plug having a metal fitting portion for holding an insulator at a portion opposite a tip end.
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Kiess, Ronald J.; Little, Lewis Henry; Ellis, Marion E.; Butler, Jr., Raymond O., Spark plug mounted thick film strain gauge.
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Kiess, Ronald J.; Little, Lewis Henry; Ellis, Marion E.; Butler, Jr., Raymond O., Spark plug mounted thick film strain gauge.
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Pattee, Jack; Zhukov, Mikhail Serafimovich, Systems and methods for magnetostrictive sensing.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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[미국특허] Sparkplug/pressure sensor device 원문보기

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이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

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[미국특허] Sparkplug/pressure sensor device 원문보기

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이 특허에 인용된 특허 (19) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

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