[특허]Temperature compensated resistive exhaust gas sensor construction

[미국특허] Temperature compensated resistive exhaust gas sensor construction 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-027/12
출원번호	US-0839704 (1977-10-05)
발명자 / 주소	Cermak Michael J. (Southfield MI) Merchant Stanley R. (Garden City MI)
출원인 / 주소	Ford Motor Company (Dearborn MI 02)
인용정보	피인용 횟수 : 37 인용 특허 : 2

초록 ▼

A pair of ceramic chips, formed of similar metal oxide ceramic materials which are semiconductors at elevated temperature, are connected electrically in series and are arranged for exposure to the hot gaseous combustion by-products produced by an internal combustion engine. The chips are positioned in the exhaust gas conduit by a ceramic insulator having a plurality of longitudinal passages extending therethrough. A plurality of electrical terminal members are received within the rear of the longitudinal passages. Electrical leads extend from the chips to the terminal members through the plurality of passages and support the chips while providing electrical communication between the chips and the electrical terminals. The electrical terminals are adapted for communication to electronic and/or electrical utilization means. One of the pair of chips is processed to exhibit a rapid change in an electrical property responsive to differences in the exhaust gas chemistry and differences in exhaust gas temperature. The other of the chips is processed to exhibit a rapid change in an electrical property responsive to differences in exhaust gas temperature only. The preferred material is titania. For temperatures in the range of from about 700°F. to about 1500°F., the application of a reference voltage across the series connected chips will produce a substantially temperature independent voltage variation across either chip in response to changes in exhaust gas chemistry and which is relatively insensitive to changes in the exhaust gas temperature.

대표청구항 ▼

An improved sensor of the type adapted for installation in an exhaust manifold or exhaust conduit for conveying exhaust gases from an internal combustion engine, the improved sensor being responsive to the partial pressure of oxygen in the exhaust gases to which the sensor is exposed and having an electrical characteristic which varies, when the sensor is at operating temperatures in the range from about 700°F. to about 1500°F., with the partial pressure of oxygen in the exhaust gases, the sensor comprising: a housing adapted for connection to the exhaust manifold or exhaust conduit of an internal combustion engine; a ceramic insulator having a forwardly projecting sensor element support portion and a rearwardly extending terminal portion received within the housing and positioned such that the forwardly projecting sensor element support structure is adapted to project into the exhaust manifold or exhaust conduit when the housing is connected thereto as adapted therefor, the forwardly projecting portion of said insulator including a thin-walled cavity and at least first, second and third passages extending from the bottom of the cavity to the rearward portion of the insulator; at least three electrical terminals each positioned within one of the three passages at the rearwardly extending terminal portion of the insulator; a pair of series-connected metal-oxide ceramic sensing elements supported within the cavity of the insulator, each of the sensing elements having at least two lead wires embedded therein, a lead wire from one of sAid pair of sensing elements being electrically connected to a lead wire of the other of the sensing elements, a second lead wire from said one of said pair of sensing elements passing through a first passage in the insulator, a second lead wire from the other of said pair of sensing elements passing through a second passage in the insulator, and a third lead wire passing through a third passage in the insulator, the third lead wire being electrically connected to the electrically connected lead wires of said one and the other of said pair of sensing elements, the lead wires in the first, second and third passages of said insulator being connected, respectively, to the three electrical terminal members received within the passages, the lead wires from the sensing elements being operative to support the sensing elements in the cavity of the insulator, the cavity having a depth sufficient to shield the sensing elements from the direct flow of gaseous products of combustion in the exhaust manifold or exhaust conduit; and said pair of sensing elements being exposed on all sides thereof to exhaust gases within the exhaust manifold or exhaust conduit, said one of said sensing elements having an electrical resistance which varies as a function of the temperature to which it is exposed and not substantially as a function of the partial pressure of oxygen to which it is exposed and the other of said sensing elements having an electrical characteristic responsive to both the temperature to which it is exposed and the partial pressure of the oxygen in the exhaust gases to which it is exposed when at a temperature within the range from about 700°F. to about 1500°F.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Tien Tseng-Ying (660 Archwood Drive Ann Arbor MI 48103), Sensor device and method of manufacturing same.
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Micheli Adolph L. (Mount Clemens MI) Dungan Dennis F. (Mount Clemens MI), Thermoelectric exhaust gas sensor.
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이 특허를 인용한 특허 (37) 인용/피인용 타임라인 분석

Zuckerman Matthew (Carmel CA), Apparatus and method for measuring the concentration of gases.
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Zuckerman Matthew (Carmel CA), Apparatus and method for measuring the concentration of gases.
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Springer Jerry L. (Livonia MI) Wells Charles M. (Livonia MI) Green Wells L. (Garden City MI), Ceramic insulator for an exhaust gas oxygen sensor.
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Yamana Toshifumi (Kasugai JPX), Combustion apparatus with control means including an oxygen sensing probe and probe therefor.
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Walsh,Alicia Marie; Dahl,Kenneth S.; Miller,Charles E.; Morris,Patricia A.; Piovoso,Michael Joseph, Computer-implemented system and method for analyzing mixtures of gases.
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Heiney ; III Elmer T. (Huntington Woods MI) Merchant Stanley R. (Garden City MI), Exhaust gas sensor electrical circuit improvement.
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Yasuda Eturo (Okazaki JPX) Sato Susumu (Okazaki JPX) Segawa Yoshihiro (Okazaki JPX) Hattori Tadashi (Okazaki JPX) Aoki Keiji (Susono JPX), Gas component detection apparatus.
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Yasuda Eturo (Okazaki JPX) Sato Susumu (Okazaki JPX) Segawa Yoshihiro (Okazaki JPX) Hattori Tadashi (Okazaki JPX) Aoki Keiji (Susono JPX), Gas component detection apparatus.
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Segawa Yoshihiro (Okazaki JPX) Ohta Minoru (Anjo JPX) Yasuda Eturo (Okazaki JPX), Gas component detector.
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Segawa Yoshihiro (Okazaki JPX) Ohta Minoru (Anjo JPX) Yasuda Eturo (Okazaki JPX), Gas component detector.
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Yasuda Eturo (Okazaki JPX) Ohta Minoru (Anjo JPX), Gas component detector.
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Ohta Minoru (Okazaki JPX) Hattori Yutaka (Okazaki JPX) Kawakami Tomio (Nishio JPX) Onoda Michitoshi (Toyohashi JPX), Gas detecting sensor.
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Betsill, Harry Edwards, Gas sensitive apparatus.
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Yasuda Eturo (Okazaki JPX) Asano Mitsuru (Okazaki JPX) Ohta Minoru (Okazaki JPX), Gas sensor.
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Buehler, Martin, Gas sensor test chip.
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Eugene Michael McCarron ; Patricia A. Morris, Infrared thermographic screening technique for semiconductor-based chemical sensors.
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Graser Theodor,DEX ; Hoetzel Gerhard,DEX ; Wehrmann Johann,DEX ; Eisenschmid Heinz,DEX, Measuring instrument.
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Morris, Patricia A., Method and apparatus for analyzing mixtures of gases.
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Morris, Patricia A., Method and apparatus for analyzing mixtures of gases.
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Morris, Patricia A., Method and apparatus for analyzing mixtures of gases.
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Eifler Raymond J. (Farmington Hills MI) Datwyler ; Jr. Walter F. (Royal Oak MI), Method and apparatus for measuring the O₂ content of a gas.
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deRuyter, John C., Method and apparatus for reducing a nitrogen oxide.
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Steichen, John Carl; Morris, Patricia A.; Barnes, John James, Method and apparatus for reducing a nitrogen oxide, and control thereof.
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Steichen, John Carl; Morris, Patricia A.; Barnes, John James, Method and apparatus for reducing a nitrogen oxide, and control thereof.
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Logothetis Eleftherios M. (Birmingham MI) Kaiser William J. (Farmington Hills MI), Method of making a titanium dioxide oxygen sensor element with fast transient response.
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Arnold,Kenny M.; Hong,Jianhui; Smith,Joseph D., Methods and systems for determining and controlling the percent stoichiometric oxidant in an incinerator.
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Joshi Ashok ; Li Liang Jun ; Virkar Anil ; Liu Meilin, Multi-functional and NO.sub.x sensor for combustion systems.
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Liu Meilin (Gwinnett County GA) Li Liang Jun (Salt Lake City UT), Multi-functional sensor for combustion systems.
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Mizutani Akio,JPX ; Okawa Teppei,JPX ; Isomura Hiroshi,JPX ; Kubota Hiroshi,JPX ; Hosogai Seiichi,JPX ; Fujita Hiroyuki,JPX, Oxygen sensor.
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Broy, Stephen H., Pre-calibrated gas sensor.
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Micheli Adolph L. (Mt. Clemens MI), Process for producing a body of sintered TiO₂ for resistive gas sensor.
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Peter Cornelius,DEX, Sensor unit for air quality measurement.
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Linder Ernst (Muhlacher DEX) Maurer Helmut (Horrheim DEX) Muller Klaus (Tamm DEX) Rieger Franz (Aalen-Wasseralfingen DEX), Temperature compensated polarographic oxygen gas sensor and sensing system, particularly for automotive application.
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Shibata Masamichi,JPX, Thermistor type temperature sensor with adjustable output signal indicative of temperature.
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Romine Donald J. (Fostoria OH), Thin coat temperature compensated resistance oxide gas sensor.
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Romine Donald J. (Fostoria OH), Thin coat temperature compensated resistance oxide gas sensor.
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Micheli Adolph L. (Mt. Clemens MI), Uncompensated low temperature stoichiometric air/fuel ratio exhaust gas sensor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Temperature compensated resistive exhaust gas sensor construction 원문보기