IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0058660
(2002-01-28)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Leydig, Voit & Mayer, Ltd.
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인용정보 |
피인용 횟수 :
8 인용 특허 :
4 |
초록
▼
A switching system is described herein for an engine having redundant control components. The switching system generally includes an actuator, a control system, inlet and outlet lines, and a transfer valve. The actuator is operable to control an engine parameter. The control system includes a first
A switching system is described herein for an engine having redundant control components. The switching system generally includes an actuator, a control system, inlet and outlet lines, and a transfer valve. The actuator is operable to control an engine parameter. The control system includes a first electrohydraulic servo valve and a second electrohydraulic servo valve, the first and second servo valves being fluidically connected to the actuator for operating the actuator. The inlet line supplies pressurized fluid and the outlet line drains fluid. The transfer valve is positioned between the first and second servo valves and the inlet and outlet lines. The system may further include additional control systems with redundant EHSVs. This invention minimizes size and space requirements, and allows nearly simultaneous transfer of all control systems, while minimizing the transient disturbance to the control system(s).
대표청구항
▼
A switching system is described herein for an engine having redundant control components. The switching system generally includes an actuator, a control system, inlet and outlet lines, and a transfer valve. The actuator is operable to control an engine parameter. The control system includes a first
A switching system is described herein for an engine having redundant control components. The switching system generally includes an actuator, a control system, inlet and outlet lines, and a transfer valve. The actuator is operable to control an engine parameter. The control system includes a first electrohydraulic servo valve and a second electrohydraulic servo valve, the first and second servo valves being fluidically connected to the actuator for operating the actuator. The inlet line supplies pressurized fluid and the outlet line drains fluid. The transfer valve is positioned between the first and second servo valves and the inlet and outlet lines. The system may further include additional control systems with redundant EHSVs. This invention minimizes size and space requirements, and allows nearly simultaneous transfer of all control systems, while minimizing the transient disturbance to the control system(s). el gas, a fuel tank for storing said fuel gas, a suction air passage for supplying said fuel gas from said fuel tank to said engine, an exhaust passage for discharging exhaust gas from said engine, a fuel supply port connected to said suction air passage, for supplying said fuel gas to said fuel tank an adsorbent disposed between said fuel supply port and said fuel tank in said suction air passage, for adsorbing non-methane hydrocarbon in said fuel gas, an adsorbent heating means for heating said adsorbent, an exhaust emission control catalyst disposed in said exhaust passage, a catalyst temperature measuring means for measuring a temperature of a catalyst, and a control means for controlling activation of said adsorbent heating means based on an activation temperature of said catalyst as obtained by said catalyst temperature measuring means. 4. The exhaust emission control device according to claim 3, wherein said fuel gas passes through said adsorbent when the fuel gas is provided to the fuel tank and the fuel gas is provided from the fuel tank to the engine. 5. An exhaust emission control method comprising: an adsorbent heating means for heating an adsorbent which is disposed in a suction air passage leading from a fuel tank for storing natural gas as fuel gas to an engine, so as to adsorb non-methane hydrocarbons in fuel gas, a catalyst temperature measuring means for measuring a temperature of a catalyst which is disposed in an exhaust passage for discharging exhaust gas from said engine, so as to control exhaust emission, and a control means for controlling activation of said adsorbent heating means in accordance with an activation temperature of said catalyst as indicated by a temperature measurement which is supplied by said catalyst temperature measuring means, wherein said non-methane hydrocarbon in fuel gas flowing in said suction air passage is adsorbed by said adsorbent, and when said measured temperature in said catalyst temperature measuring means reaches to said activation temperature of said catalyst, said adsorbent heating means is operated by said control means, so that said adsorbent is heated over a desorption temperature in which said non-methane hydrocarbon is desorbed from said adsorbent. 6. 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Sibson, R., "SLINK: An Optimally Efficient Algorithm for the Single-Link Cluster Method", The Computer Journal, vol. 16, No. 1, pp. 30-34 (Feb. 1973). Sirrine, S., "FrameMaker 4 Builds on Solid Set of Tools", Infoworld, pp. 58-59 (Dec. 27, 1993/Jan. 3, 1994). Smyth, P. et al., "An Information Theoretic Approach to Rule Induction from Databases", IEEE Transactions on Knowledge and Data Engineering, vol. 4, No. 4., pp. 301-316 (Aug. 1992). Summers, P. et al., "AML: A Programming Language for Automation", The IEEE Computer Society's Fifth International Computer Software & Applications Conference, Chicago, Illinois, pp. 154-155 (Nov. 16-20, 1981). Taylor, R. et al., "An Integrated Robot System Architecture", Proceedings of the IEEE, vol. 71, No. 7, pp. 842-856 (Jul. 1983). Wells, D. et al., "Architecture of an Open Object-Oriented Database Management System", Computer, vol. 25, No. 10, pp. 74-82 (Oct. 1992). Woods, W. et al., "The KL-One Family", Computers Math. 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