[특허]Mass air flow compensation for burner-based exhaust gas generation system

Mass air flow compensation for burner-based exhaust gas generation system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23N-001/02
출원번호	US-0376866 (2006-03-16)
등록번호	US-8425224 (2013-04-23)
발명자 / 주소	Webb, Cynthia C. Mathis, Jeffrey A.
출원인 / 주소	Southwest Research Institute
대리인 / 주소	Chowdhury & Georgakis PC
인용정보	피인용 횟수 : 0 인용 특허 : 46

초록

A burner-based exhaust gas generation system, having a blower for providing air into the system. The blower is controlled to compensate for variations in mass air flow into the system.

대표청구항 ▼

1. A burner-based system for generating exhaust gas that simulates exhaust gas from an internal combustion engine and for delivering the exhaust gas to an emissions control device for testing of the emissions control device in accordance with a predetermined aging cycle having a specified exhaust flow rate and extending over at least one diurnal time period, comprising: a main flow line;a forced air device for forcing air along the main flow line and having an output control mechanism;a burner downstream the forced air device;a fuel injector for delivering fuel to the burner located downstream from the burner, the injector having an atomizing fuel sprayer;wherein the burner combusts a mixture of air and fuel, thereby providing exhaust gas; a sensor for measuring the mass air flow within the flow line;a heat exchanger for controlling the temperature of exhaust gas delivered to the emissions control device;a control unit in communication with various test probes, the test probes measuring system temperatures, mass air flow for the burner, and air to fuel ratio for the burner, the control unit controls parameters based on measurements from the probe to control ignition, air assist to fuel injection, fuel feed, and blower air;the control unit programmed to store at least one mass air flow rate setpoint and to perform the following tasks: receiving mass air flow data from the sensor, using the mass air flow data to generate a correction voltage value, using the correction value to generate a voltage output signal delivered to the output control mechanism of the forced air device. 2. The system of claim 1, wherein the forced air device is a blower. 3. The system of claim 1, wherein the sensor is a mass air flow sensor. 4. The system of claim 1, wherein the sensor is placed between the forced air device and the burner. 5. A method of using a burner-based exhaust gas generation system to provide a exhaust to an emissions control device for the purposes of testing the emissions control device in accordance with a predetermined aging cycle that has a specified exhaust flow rate and extends over at least one diurnal time period, comprising: determining a mass air flow setpoint that will result in the specified exhaust flow rate; using a forced air device to force input air into a main flow line, the forced air device having an output control mechanism;using a burner downstream the forced air device to receive the air and fuel, and to combust a mixture of the air and fuel, thereby providing exhaust gas;using a mass air flow sensor to measure the mass air flow along the flow line;using a heat exchanger to control the temperature of exhaust gas delivered to the emissions control device;providing a control unit in communication various test probes;using the probe for measuring system temperatures, mass air flow from the burner, and air to fuel ration of the burner;controlling ignition, air assist to fuel injection, auxiliary air, fuel feed, blower air feed and oil injection based on measurements from the probeusing a control unit to store at least one mass air flow rate setpoint and to perform the following tasks: receiving mass air flow data from the mass air flow sensor, using the mass air flow data to generate a correction voltage value, using the correction value to generate a voltage output signal delivered to the output control mechanism of the forced air device. 6. The method of claim 5, wherein the forced air device is a blower. 7. The method of claim 5, wherein the measuring step is performed with a mass air flow sensor. 8. The method of claim 5, wherein the measuring step is performed by sensing the flow between the forced air device and the burner.

이 특허에 인용된 특허 (46)

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Goebel,Peter, Blower for combustion air.
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Stark, Terrance L., Burner for heating gas stream.
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Zhu, Xuegeng, Dual mast system for simulation testing.
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Nichols Angelo H. (Grosse Pointe Woods MI), Engine catalyst aging system and method for aging catalyst.
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Pettit William H. (Rochester NY), Exhaust burner catalyst preheater.
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Suzuki Yoshinobu (Narashinoshi JPX) Chiba Kiyoshi (Machidashi JPX) Tukuhiro Tomoya (Kanagawa JPX) Iwasawa Yoshiyuki (Tokyo JPX) Kajioka Yasuo (Tokyo JPX) Komine Tomio (Tokyo JPX), Exhaust gas cleaning system for diesel engines.
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Naegeli David W. (San Antonio TX) Crane Michael E. (San Antonio TX), Exhaust gas combustor.
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Ber Jnos M. (Winchester MA), Low NOx rich-lean combustor especially useful in gas turbines.
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Palocz-Andresen, Michael, Measurement of contaminant components in exhaust gas and reduction of excessive contaminant emissions during cold starts and while driving.
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Kumar, Sanath V.; Deeba, Michel; Burk, Patrick L., Method and apparatus for accelerated catalyst poisoning and deactivation.
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Goebel, Peter, Method and device for adjusting air ratio.
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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

Mass air flow compensation for burner-based exhaust gas generation system 원문보기

초록

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Mass air flow compensation for burner-based exhaust gas generation system 원문보기

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