[특허]Dynamic engine oil and fuel consumption measurements using tunable diode laser spectroscopy

Dynamic engine oil and fuel consumption measurements using tunable diode laser spectroscopy 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-021/61
출원번호	US-0241421 (1994-05-11)
발명자 / 주소	Lee Peter S. (1590 Martinique Dr. Troy MI 48084) Vitale Jr. Joseph A. (52500 Southdown Shelby Township Macomb County MI 48316) Majkowski Richard F. (155 N. Harbor Dr. Chicago IL 60601)
인용정보	피인용 횟수 : 18 인용 특허 : 0

초록 ▼

A method is provided for precisely and concurrently measuring dynamic engine oil consumption and fuel consumption within an internal combustion engine on a real-time basis. Nonradioactive organo- bromine or chlorine compounds are added to the oil in small amounts in their natural isotopic abundance or enriched. Upon complete combustion, the bromine or chlorine is converted into hydrogen bromide (HBr) or hydrogen chloride (HCl), respectively. A tunable diode laser spectrometer is used to determine the trace amounts of the resultant HBr or HCl in the exhaust gases, which continuously flows through a sample cell by the use of a sample line that allows the unimpeded transport of samples, reduces the pressure of the exhaust gas and maintains it at a suitable level for analysis, and prevents the condensation of water vapor in the exhaust gas so as to prevent the dissolution of the tracer compounds in the water condensate.

대표청구항 ▼

A method for evaluating fuel and engine oil consumption on a near real-time basis in an internal combustion engine, the method comprising the steps of: treating the fuel or engine oil with a nonradioactive tracer compound either in its natural isotopic abundance or enriched, the nonradioactive tracer compound being one or more compounds selected from the group consisting of organobromine compounds and organochlorine compounds, such that the exhaust gas of the internal combustion engine contains a tracer compound comprising a tracer isotopic specie; continuously flowing an exhaust gas sample from the internal combustion engine through a sample line in which the exhaust gas sample is rapidly expanded so as to attain a reduced pressure and in which the exhaust gas sample is heated so as to substantially prevent water vapor present in the exhaust gas from condensing while the exhaust gas is at the reduced pressure; maintaining the exhaust gas sample at the reduced pressure within a sample cell downstream of the sample line, the sample line causing the dew point of the exhaust gas sample to be sufficiently low so as to allow the sample cell to be operated at approximately room temperature and so as to enable the tracer compound and water vapor to coexist within the sample cell, such that a distinction between an absorption line of the tracer isotopic specie and the absorption lines of related isotopic species is discernible; and transmitting monochromatic radiation through the exhaust gas sample in the sample cell at the frequency of an absorption line for the tracer isotopic specie, while concurrently detecting the intensity of a spectral line for the tracer isotopic specie so as to determine fuel and engine oil consumption in the internal combustion engine on a near real-time basis.

이 특허를 인용한 특허 (18)

Rosenberger, Albert T.; Strecker, Brian N., Apparatus and method for a microsphere whispering-gallery mode evanescent-wave sensor.
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Gugaratshan,Kulasegaram; Altin,Orhan, Calibration for an oil-consumption-measurement system.
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Rosenkranz, Anton; Harms, Klaus-Christoph; Wiesinger, Michael, Device and method for continuous measurement of the dynamic fuel consumption of an internal combustion engine.
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Breviere, Jérôme; Baer, Douglas; Whiticar, Michael John, Device for quantifying the contents of at least one gaseous constituent contained in a gaseous sample from a fluid, related assembly and process.
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Krainak Michael A. ; Duerksen Gary L., Fiber grating coupled light source capable of tunable, single frequency operation.
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Vitale ; Jr. Joseph Anthony ; Gushman Richard William, Furnace for an engine exhaust measurement system.
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Badami, Vivek Venugopal; Hoyte, Scott Mordin; Mitra, Chayan; Banerjee, Ayan, Hot gas temperature measurement in gas turbine using tunable diode laser.
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Howell, Jim; Masterson, Bernard Patrick; Harris, Rod; Giltner, David; Jobson, Atilio; Estes, Michael John; Sappey, Andrew D., In-furnace retro-reflectors with steerable tunable diode laser absorption spectrometer.
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Ishihara Yoshio (Tsukuba JPX) Masusaki Hiroshi (Tsukuba JPX) Wu Shang-Qian (Tsukuba JPX) Matsumoto Koh (Tsukuba JPX), Infrared spectroscopic analysis method for gases and device employing the method therein.
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Jones, Christopher; Sofer, Zvi; Drozd, Richard J., Method and apparatus for performing rapid isotopic analysis via laser spectroscopy.
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Jones, Christopher; Sofer, Zvi; Drozd, Richard J., Method and apparatus for performing rapid isotopic analysis via laser spectroscopy.
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Delvigne,Thierry; Obiols,Jerome, Method and device for continuous determination of lubricating oil consumption of an internal combustion engine.
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Dequenne, Bernard, Method and device for monitoring the dilution of the lubricating oil by the fuel in an internal combustion engine.
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Delvigne,Thierry; Obiols,Jerome, Method and device for the continuous determination of damage to systems used for the post-treatment of heat engine exhaust gases.
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Benz, Frank-Michael; Barton, Jason Thomas; Rochon, Michael Kennedy, Method of engine oil consumption.
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Jones,Christopher M., Method to reduce background noise in a spectrum.
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Arimoto, Kimihiko; Takagi, So; Yada, Takaaki, Optical analyzer.
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Loecklin, Eberhard, Optical reference element and procedure for the spectral calibration of an optical spectrum analyzer.
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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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Dynamic engine oil and fuel consumption measurements using tunable diode laser spectroscopy 원문보기

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Dynamic engine oil and fuel consumption measurements using tunable diode laser spectroscopy 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (18)

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