[특허]Method for determining fuel and engine oil comsumption using tunable diode laser spectroscopy

Method for determining fuel and engine oil comsumption using tunable diode laser spectroscopy 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-021/59
출원번호	US-0367906 (1989-06-19)
발명자 / 주소	Lee Peter S. (Troy MI) Majkowski Richard F. (Southfield MI) Schreck Richard M. (Bloomfield Hills MI)
출원인 / 주소	General Motors Corporation (Detroit MI 02)
인용정보	피인용 횟수 : 39 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 in an automotive environment on a real time basis. Nonradioactive tracer compounds, such as bromine or chlorine in the form of organic bromo- or chloro-compounds are added to the engine oil in small amounts. Upon complete combustion, the bromine or chlorine is converted into either hydrogen bromide or hydrogen chloride. A sample of the exhaust gases generated by the internal combustion engine and comprising the hydrogen bromide or hydrogen chloride is collected and maintained at a pressure where distinction between an absorption line of the tracer specie and the absorption lines of a related isotopic species is discernible. Monochromatic radiation is then transmitted through the gaseous sample at the frequency of an absorption line particular to the tracer specie. Because of the high spectral power density and spectral resolution of the preferred tunable diode lasers, tunable diode laser spectroscopy may be used to measure the amount of tracer isotope within the resultant HCl or HBr gases in the exhaust gases. Corresponding fuel consumption may also be determined from the CO2 in the exhaust gases by similar methods.

대표청구항 ▼

A method for evaluating fuel and engine oil consumption on a near real-time basis in an internal combustion engine comprising the steps of: treating the fuel or engine oil with a substance with a nonradioactive organobromine tracer isotope either in its natural abundance or enriched; continuously collecting combusted gaseous samples comprising hydrogen bromide from the exhaust gases generated by the internal combustion engine; maintaining each of said combusted gaseous sample at a pressure where distinction between an absorption line of said tracer isotopic specie and the absorption lines of related isotopic species is discernible, transmitting monochromatic radiation through each of said gaseous samples at the frequency of an absorption line for said tracer isotopic specie, while concurrently detecting the intensity of a spectral line for said tracer isotopic specie in each of the samples so as to determine fuel and engine oil consumption in the internal combustion engine on a near real-time basis.

이 특허를 인용한 특허 (39)

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Benz, Frank-Michael; Barton, Jason Thomas; Rochon, Michael Kennedy, Method of engine oil consumption.
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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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연합인증

Method for determining fuel and engine oil comsumption using tunable diode laser spectroscopy 원문보기

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Method for determining fuel and engine oil comsumption using tunable diode laser spectroscopy 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (39)

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