and closing of the throttle valve based on drivers input and is also interrelated with chassis control ECUs such as Traction Control and Vehicle Stability Control (Skid Control ECU). Introduction The Accelerator Pedal Position Sensor (APPS) detects the accelerator pedal position (driver input) and sends a signal to the ECM. Based on the input from the APPS and other ECUs (ABS‚ TRAC and VSC)‚ the engine ECM directs the Throttle Control Motor to change throttle valve position. The Throttle Position
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Satish H. Kashid / Jayant G. Patil HAZOP (HAZARD AND OPERABILITY) STUDIES FOR DESIGN OF ENGINEERING SYSTEMS Authors Satish H. Kashid Jayant G. Patil ABSTRACT The design of engineering piping systems onboard war ships is an extremely complex activity with pipes of various systems running neck to neck through machinery spaces‚ compartments and decks etc. For validating the design‚ usually a careful thought process and intuitive imagination is needed to predict the abnormal causes
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and Completeness of Bulk-Gas Reactions for HCCI Combustion‚” SAE Paper No. 2003-01-3173. ͓3͔ Christensen‚ M.‚ Hultqvist‚ A.‚ and Johansson‚ B.‚ 1999‚ “Demonstrating the Multi-Fuel Capability of a Homogeneous Charge Compression Ignition Engine With Variable Compression Ratio‚” SAE Paper‚ 1999-01-3679. ͓4͔ Stanglmaier‚ R. H.‚ Ryan‚ T. W.‚ and Souder‚ J. S.‚ 2001‚ “HCCI Operation of a Dual-Fuel Natural Gas Engine for Improved Fuel Efficiency and Ultra-Low NOx Emissions at Low-to-Moderate Engine Loads‚”
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loop has to be adjusted to compensate for changes due to disturbances in plant operation. The control loops consists of sensor and transmitter‚ controller and control valve. The sensor measures the plant variable from the plant and the information send by transmitter to DCS controller. The controller checks if the process variable agrees with the set point. The computer attached to the distillation unit allows for the flexibility of changing the controller set up‚ thus enabling different
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hl=en&lr=&vid=USPAT5146890&id=GE4cAAAAEBAJ&oi=fnd&dq=how+engine+works (Google Scholar) Fig3 from: http://static.howstuffworks.com/gif/hemi-diagram.gif Fig2 from: Ulrich Gobert‚ Ola Danielsson. Method and a device for engine braking a four stroke internal combustion engine. Adapted by us to show valves and pistons. Fig1 from: http://en.wikipedia.org/wiki‚ Adapted by us: We joined two different pictures together and inserted the legend.
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POLLUTION FROM DIESEL ENGINES AND ITS CONTROL Diesel engines and gasoline engines are the most widely used primary sources of power in automobiles and the sheer number of them makes the issue of emissions from these engines an important one. Table 1 gives a comparison of the amounts of different pollutants in the exhaust of diesel and petrol engines. FORMATION OF NOX AND CONTROL METHODS: The main source of NOx in diesel engine emissions is the oxidation of the nitrogen in the air at the high temperatures
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Gasoline-engine management Gasoline Fuel-Injection System K-Jetronic Technical Instruction Published by: © Robert Bosch GmbH‚ 2000 Postfach 30 02 20‚ D-70442 Stuttgart. Automotive Equipment Business Sector‚ Department for Automotive Services‚ Technical Publications (KH/PDI2). Editor-in-Chief: Dipl.-Ing. (FH) Horst Bauer. Editorial staff: Dipl.-Ing. Karl-Heinz Dietsche‚ Dipl.-Ing. (BA) Jürgen Crepin. Presentation: Dipl.-Ing. (FH) Ulrich Adler‚ Joachim Kaiser‚ Berthold Gauder‚ Leinfelden-Echterdingen
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DISPELLING THE ROTAX MAX MYTHS Rotax is far and away the most popular karting engine in the world. BRP Rotax‚ the manufacturer‚ recently passed the 50‚000 mark for the Rotax Max series of engines and has produced in excess of 6‚000‚000 engines across its entire engine range. Why are these engines so popular and why are there so many myths surrounding Rotax engines in Australia? The following series of articles with technical material sourced directly from BRP Rotax in Austria (and
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injection Older engines make use of a mechanical fuel pump and valve assembly which is driven by the engine crankshaft‚ usually via the timing belt or chain. These engines use simple injectors which are basically very precise spring-loaded valves which will open and close at a specific fuel pressure. The pump assembly consists of a pump which pressurizes the fuel‚ and a disc-shaped valve which rotates at half crankshaft speed. The valve has a single aperture to the pressurized fuel on one side‚ and
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motor‚ while the HP stage is driven by a variable speed DC motor. This feature allows variation of the intermediate pressure. Each stage is provided with its own dynamometer. At compressor’s inlet there is an airbox with a sharp-edged orifice for flow measurement. An intercooler is provided between the two stages‚ and an intercooler between the second stage and the pressure vessel. Connected to the pressure vessel is an exhaust pipe with a throttling valve and a calibrated flow nozzle for additional
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