Patents Issued in November 20, 2003
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Publication number: 20030213441Abstract: Engine cooling system and method for making same wherein an engine, engine casing, or component thereof or a component related thereto has at least one cooling fin (18) having at least a portion of an edge surface (32) including an engraved, or intagliated portion (40). Preferably the surface edge includes a plurality of itagliated portions (40) with each portion including at least two elongated concavities being in preselected orientation and relationship to each other to improve the cooling efficiency of the fin and thus allow the engine to operate in wider, more extreme range of temperatures and environments. The present invention is particularly well suited, but not limited to air-cooled engines and related components such as component covers, inspection/access covers, and oil coolers and is therefore readily adaptable to engines used to propel motor vehicles such as, but not limited to, motorcycles.Type: ApplicationFiled: May 23, 2003Publication date: November 20, 2003Inventor: Keith A. Brinton
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Publication number: 20030213442Abstract: An engine valve actuation system is provided. An intake valve is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is connected to move the intake valve between the first position and the second position. A fluid actuator is configured to selectively prevent the intake valve from moving to the first position. A source of fluid is in fluid communication with the fluid actuator. A directional control valve is configured to control a flow of fluid between the source of fluid and the fluid actuator. A control valve is disposed between the source of fluid and the directional control valve. The control valve is moveable between a first position to prevent the flow of fluid between the source of fluid and the directional control valve and a second position to allow the flow of fluid from the source of fluid to the directional control valve.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Sean O. Cornell, Scott Alan Leman
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Publication number: 20030213443Abstract: An engine valve actuation system is provided. The engine valve actuation system includes an intake valve that is moveable between a first position to prevent a flow of fluid and a second position to allow a flow of fluid. A cam assembly is configured to move the intake valve between the first position and the second position. A fluid actuator is configured to selectively prevent the intake valve from moving to the first position. A source of fluid is in fluid communication with the fluid actuator. A directional control valve is configured to control a flow of fluid between the source of fluid and the fluid actuator. A fluid passageway connects the directional control valve with the fluid actuator. An accumulator is in fluid communication with the fluid passageway. A restricted orifice is disposed between the accumulator and the fluid passageway to restrict a flow of fluid between the accumulator and the fluid passageway.Type: ApplicationFiled: October 30, 2002Publication date: November 20, 2003Applicant: Caterpillar Inc.Inventors: Sean O. Cornell, Scott Alan Leman
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Publication number: 20030213444Abstract: An engine valve actuation system that includes an intake valve moveable between a first position that blocks a flow of fluid and a second position that allows a flow of fluid. The system also includes a cam assembly connected to move the intake valve between the first position and the second position and a fluid actuator configured to selectively modify a timing of the intake valve in moving from the second position to the first position. A snubbing valve is configured to restrict a flow of fluid from the fluid actuator so as to reduce a rate of movement of the intake valve to the first position.Type: ApplicationFiled: December 4, 2002Publication date: November 20, 2003Inventors: Sean O. Cornell, Scott Alan Leman
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Publication number: 20030213445Abstract: An engine valve actuation system is provided. An intake valve is moveable between a first position where the intake valve prevents a flow of fluid relative to the intake valve and a second position where the intake valve allows a flow of fluid relative to the intake valve. A cam assembly is configured to move the intake valve between the first position and the second position. A fluid actuator having a chamber is adapted to selectively prevent the intake valve from moving to the first position. A fluid supply system is adapted to deliver fluid to the chamber of the fluid actuator. A pressure sensor is operatively engaged with the fluid supply system and is adapted to sense the pressure of the fluid within the fluid supply system.Type: ApplicationFiled: December 4, 2002Publication date: November 20, 2003Inventors: Jason Kenneth Bloms, Steven J. Funke, Robert A. Kagy, Evan E. Jacobsen
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Publication number: 20030213446Abstract: A valve driving device reduces the volume of the pressure chamber and decreases the energy supplied during driving to open the main valve. As a result of this initial energy, the main valve is lifted by inertial motion. When the main valve is opened (lifted), a first actuating valve is opened, and high-pressure actuating fluid is supplied to the pressure chamber. When in this process the pressure in the pressure chamber falls below the pressure of a low-pressure chamber, a second actuating valve opens independently, and low-pressure actuating fluid is introduced into the pressure chamber. By this means negative pressure in the pressure chamber can be prevented, and the main valve can be held in a lift position equivalent to the initial energy. When the main valve is to be closed, an actuator forcibly opens the second actuating valve.Type: ApplicationFiled: May 14, 2003Publication date: November 20, 2003Applicant: Isuzu Motors LimitedInventors: Tsuneo Tanaka, Akihiko Minato, Yoshihiro Arakawa
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Publication number: 20030213447Abstract: An engine valve actuation system is provided. The system includes an engine valve moveable between a closed position and an open position. A spring is operatively connected to the engine valve to bias the engine valve towards the closed position. An actuator is operatively connected to the engine valve and is operable to selectively engage the engine valve to prevent the engine valve from returning to the closed position and to release the engine valve to allow the engine valve to return to the closed position. A sensor is configured to provide information related to the operation of the actuator. A controller is configured to transmit a signal to the actuator to engage the engine valve to prevent the engine valve from returning to the closed position and to release the engine valve to the allow the engine valve to return to the closed position.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Jason Kenneth Bloms, James J. Faletti, Richard Herman Holtman, Scott Alan Leman, David Andrew Pierpont
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Publication number: 20030213448Abstract: A method of calibrating a variable valve actuation system is provided. An engine valve is moved from a first position where the engine valve blocks a flow of fluid to a second position where the engine valve passes a flow of fluid. A valve actuator is actuated to prevent the engine valve from returning to the first position. A signal is transmitted to cause the valve actuator and to allow the engine valve to return to the first position. The return of the engine valve to the first position is determined. A time parameter indicative of an elapsed time between the transmission of the signal and movement of the engine valve to the first position is determined.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Richard Herman Holtman, Scott Alan Leman, Sean O. Cornell, John Stephen Pipis, Ronald D. Shinogle
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Publication number: 20030213449Abstract: A method of controlling an engine is provided. At least one operating parameter of the engine is sensed. The engine is operated in a first mode in response to the sensed operating parameter being at one of a predetermined first set of conditions. In the first mode, a cam assembly moves an intake valve from a first position when a piston starts an intake stroke and the cam assembly returns the intake valve to the first position when the piston completes the intake stroke. The engine is operated in a second mode in response to the sensed operating parameter being at one of a predetermined second set of conditions. In the second mode, the cam assembly moves the intake valve from the first position when the piston starts an intake stroke and an actuator prevents the intake valve from returning to the first position in response to the cam assembly.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Jason Kenneth Bloms, James J. Faletti, Scott Alan Leman, David Andrew Pierpont, James Richard Weber
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Publication number: 20030213450Abstract: A method of controlling a variable valve actuation system is provided. A cam assembly is operated to move an intake valve between a first position where the intake valve blocks a flow of fluid and a second position where the intake valve allows a flow of fluid. At least one operating parameter of the engine is sensed. A valve actuation period is determined based on the at least one operating parameter. A valve actuator is engaged with the intake valve to prevent the intake valve from returning to the first position in response to operation of the cam assembly. The valve actuator is released to allow the intake valve to return to the first position at the end of the determined valve actuation period.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Jason Kenneth Bloms, James J. Faletti, Scott Alan Leman, David Andrew Pierpont, James Richard Weber
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Publication number: 20030213451Abstract: A control system for an internal combustion engine is provided. The engine includes a compression ratio control mechanism and an ignition timing control system. The control system comprises an engine control for controlling the compression ratio control mechanism and the ignition timing control system so that the compression ratio is varied depending upon variations of engine rpm, engine load and a warm-up condition of the engine and that when the engine is cold, the ignition timing is retarded from a MBT point and a top dead center position of a piston is made lower in level than that obtained when the engine is hot and operated at corresponding engine rpm and engine load. A method for controlling such an internal combustion engine is also provided.Type: ApplicationFiled: April 17, 2003Publication date: November 20, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Shunichi Aoyama, Shinichi Takemura, Takanobu Sugiyama, Ryosuke Hiyoshi
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Publication number: 20030213452Abstract: A rotary driven reciprocating mechanism and method permit a rotary motion to be converted into a reciprocating motion that may be used to control the operation of various devices. For example, in a preferred embodiment, the rotary driven reciprocating mechanism may be used for electronic valve timing control in an internal combustion engine. The rotary driven reciprocating mechanism may also be used as a pump valve timing mechanism or for any other purpose in which it is desirable to convert rotary motion into reciprocating motion.Type: ApplicationFiled: May 17, 2002Publication date: November 20, 2003Inventor: Dan Pomerleau
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Publication number: 20030213453Abstract: Disclosed is an engine of a personal watercraft capable of preventing water ingress into a penetrating hole for attaching an ignition plug. The engine comprises a cylinder head, a cylinder head cover provided over the cylinder head, an ignition plug attached to the cylinder head, a penetrating hole formed to extend from an upper surface of the cylinder head cover to a lower surface of the cylinder head, for accommodating and attaching the ignition plug inside thereof, a connecting member connected to an upper end of the ignition plug and located inside the penetrating hole, for connecting a power supply to the ignition plug that activates the ignition plug, a closing member for creating a seal between the connecting member and the penetrating hole, and an air hole formed to extend obliquely downward from the penetrating hole so as to communicate with an outside of the cylinder head.Type: ApplicationFiled: February 28, 2003Publication date: November 20, 2003Inventor: Yoshimoto Matsuda
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Publication number: 20030213454Abstract: The invention relates to a method for improving the initial conditions for starting a direct injection, spark-ignition internal combustion engine. Measures, such as adjusting the throttle valve, a varying inlet and exhaust valve timings, operating a secondary-air pump, ensures that the internal combustion engine, when running down, scavenges exhaust gases from the cylinder by providing fresh air into the. Furthermore, measures are undertaken for the braking and/or active rotation of the internal combustion engine so that it is a suitable position for renewed starting, the restarting being accomplished without the aid of a starter motor.Type: ApplicationFiled: May 9, 2003Publication date: November 20, 2003Inventors: Klemens Grieser, Ulrich Kramer
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Publication number: 20030213455Abstract: A recoil starter capable of preventing vibration of a damper spring due to vibrations of an engine caused during running of the engine, to thereby restrain abrasion of a rope reel, a cam and the like which are made of a plastic material, resulting in the durability of the recoil starter being enhanced. The recoil starter includes a drive section comprised of a rope reel which is rotated by pulling a recoil rope and a cam for transmitting the rotational force of the reel to a crankshaft of the engine through a one-way rotative transmission mechanism. A damper spring in the shape of a torsion coil spring is held in annular recesses formed in joint surfaces of the rope reel and cam to face each other while the damper spring is resiliently distorted, so that the rope reel and the cam are rotatingly coupled with each other through the damper spring.Type: ApplicationFiled: May 19, 2003Publication date: November 20, 2003Inventor: Isao Tohyama
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Publication number: 20030213456Abstract: A valve, particularly a switching cylinder, for opening and closing a pipe, especially for use in an intake manifold for a multi-cylinder internal combustion engine having an air distribution chamber and individual intake pipes positioned next to one another which terminate in a flange, in which the valve is positioned in an individual intake pipe to close or open the respective intake pipe, and the valve has at least one sealing system mounted in a radially movable manner such that, in the closed position, it presses against the pipe inner wall to form a seal, and in the open position and in the pivot range from the closed position to the open position, it forms a gap between the valve and the pipe inner wall.Type: ApplicationFiled: March 3, 2003Publication date: November 20, 2003Applicant: Filterwerk Mann & Hummel GmbHInventors: Arthur Klotz, Helmut Neuschwander
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Publication number: 20030213457Abstract: An arrangement for the detachable fixing of an inlet device to the cylinder head of an internal combustion engine (6) wherein the inlet device (6) is fixed to the cylinder head (2) by means of a locking mechanism (10), which permits a simple assembly without the need for separate connector elements.Type: ApplicationFiled: June 10, 2003Publication date: November 20, 2003Inventor: Peter Fischer
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Publication number: 20030213458Abstract: A portable, operator-carried power tool having an implement supported on an operator-carried frame, and a lightweight, four-stroke, internal combustion engine drivably connected to the implement and supported by the frame. The engine has a crankshaft situated in a crankshaft housing and a cylinder block secured to the crankshaft housing, the crankshaft being provided with a crankcase ventilation passage extending between the crankcase and an outlet end in communication with an air/fuel induction passage. A passage establishes communication between the interior of the crankcase and the valve chamber through a cam and cam gear region of the cylinder block. An oil mist generator is connected drivably to the crankshaft for agitating liquid oil in the crankcase to establish a lubricating oil mist. The crankcase, the cam region and the valve chamber form a closed oil mist containment whereby lubricating oil mist is distributed throughout the engine during operation regardless of angular orientation of the engine.Type: ApplicationFiled: May 22, 2003Publication date: November 20, 2003Applicant: MTD Southwest Inc.Inventors: Shiro Kawamoto, Harry Gene Rickard, John Sheldon, Yoichi Imgawa
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Publication number: 20030213459Abstract: An injection needle comprising a needle tip, elastically connected to a needle shaft by means of a connector piece. A damping of the force with which the needle tip hits the corresponding sealing seat is possible by means of the elastic connection. The load on the sealing seat is thus reduced.Type: ApplicationFiled: May 2, 2003Publication date: November 20, 2003Inventors: Thomas Hofmann, Alwin Perras, Hakan Yalcin
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Publication number: 20030213460Abstract: A counter-rotating rotary-piston engine has an output shaft with a cylindrical inner cavity rotatably mounted on a single support spindle in the frame of an aircraft. The output shaft extends substantially through the length of the engine block, which is suitably journaled on the shaft or the spindle to permit its counter-rotation. Internal combustion power is transmitted to the output shaft by means of an inner rotary piston fixed to the shaft which cooperates in conventional manner with an outer working chamber in the engine block, thereby producing concurrent rotation of the shaft and counter-rotation of the engine block. Dual propellers mounted on the shaft and on the block improve thrust performance, balance the torques and moments of inertia of the two counter-rotating masses, and virtually eliminate any resultant torque to the aircraft.Type: ApplicationFiled: April 16, 2003Publication date: November 20, 2003Inventor: Paul A. Schwam
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Publication number: 20030213461Abstract: An improved combustion system particularly for a larger type diesel engine featuring a prechamber with a generally cup-shaped bottom tip portion facing the engine's main combustion chamber and with a central transfer passage substantially aligned with the centerline of the prechamber and a plurality of additional transfer passages circumferentially arranged about the centerline of the prechamber. The improved complete combustion system uses a piston with a deep bowl formed in the piston crown into which the central transfer passage directs a strong direct charge of products of combustion from the prechamber.Type: ApplicationFiled: March 3, 2003Publication date: November 20, 2003Inventor: Jose Francisco Regueiro
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Publication number: 20030213462Abstract: A method of operating an internal combustion engine, including at least one cylinder and a piston slidable in the cylinder, may include supplying pressurized air from an intake manifold to an air intake port of a combustion chamber in the cylinder, selectively operating an air intake valve to open the air intake port to allow pressurized air to flow between the combustion chamber and the intake manifold substantially during a majority portion of a compression stroke of the piston, and operably controlling a fuel supply system to inject fuel into the combustion chamber after the intake valve is closed.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: James Richard Weber, Scott A. Leman
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Publication number: 20030213463Abstract: A method of operating an internal combustion engine, including at least one cylinder and a piston slidable in the cylinder, may include supplying a mixture of pressurized air and recirculated exhaust gas from an intake manifold to an air intake port of a combustion chamber in the cylinder, selectively operating an air intake valve to open the air intake port to allow pressurized air to flow between the combustion chamber and the intake manifold substantially during a majority portion of a compression stroke of the piston, and operably controlling a fuel supply system to inject fuel into the combustion chamber after the intake valve is closed.Type: ApplicationFiled: February 20, 2003Publication date: November 20, 2003Inventors: Gerald N. Coleman, Kevin P. Duffy, Stephen A. Faulkner, Eric C. Fluga, Jonathan P. Kilkenny, Scott A. Leman, Cornelius N. Opris, Maarten Verkiel, James R. Weber
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Publication number: 20030213464Abstract: A diaphragm carburetor for an internal combustion engine that operates with scavenging is provided, especially for the two-cycle engine in a manually guided implement. The carburetor has a housing in which is formed an intake channel portion in which is disposed a butterfly valve that is rotatably held via a butterfly valve shaft. The carburetor has at least one air channel that supplies additional combustion air and that is provided with an air valve that is rotatably held via an air valve shaft. The air valve is, at least in one angular range, coupled to the movement of the butterfly valve, whereby the coupling includes a butterfly valve lever that is fixedly connected with the butterfly valve shaft, and an air valve lever that is fixedly connected with the air valve shaft. Disposed on one of the levers is a driver member that at least in one angular range slides upon the other lever between an outer contact point and an inner contact point.Type: ApplicationFiled: April 23, 2003Publication date: November 20, 2003Inventors: Werner Geyer, Claus Fleig, Jorg Schlossarczyk, Bernd Knodler
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Publication number: 20030213465Abstract: A method and a device for controlling an engine, in which a control module calculates a setpoint torque based on an accelerator position and calculates an air mass and a fuel mass from this setpoint torque. In the process, a setpoint value for lambda (ratio of air mass to fuel mass) is taken into account when the fuel mass is calculated. A monitoring module calculates a monitoring value for the air mass from the fuel mass and compares it to a measured air mass for fault detection.Type: ApplicationFiled: April 4, 2003Publication date: November 20, 2003Inventors: Gerhard Fehl, Winfried Langer
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Publication number: 20030213466Abstract: An engine control system and method for a displacement on demand internal combustion engine includes a throttle preload signal generator that outputs a throttle preload area signal having a base portion and ramp out portion. A combining circuit combines the throttle preload area signal with a current throttle area signal to generate a throttle preload difference signal that adjusts throttle area to smooth transitions during at cylinder deactivation. The engine control system smoothes the transition between activated and inactivated modes by increasing throttle area and manifold pressure when transitioning between activated and deactivated modes.Type: ApplicationFiled: May 17, 2002Publication date: November 20, 2003Inventor: Allen B. Rayl
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Publication number: 20030213467Abstract: An engine control system and method calculates spark retard during cylinder activation and deactivation for a displacement on demand engine. A torque reduction calculator calculates a torque reduction signal based on desired and measured air per cylinder. A spark retard (RTD) calculator generates a RTD signal based on the torque reduction signal.Type: ApplicationFiled: May 17, 2002Publication date: November 20, 2003Inventors: Allen B. Rayl, Gregory Paul Matthews
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Publication number: 20030213468Abstract: An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller varies the spark for a reactivating cylinder during the transition from deactivation to reactivation.Type: ApplicationFiled: May 16, 2002Publication date: November 20, 2003Inventors: Allen B. Rayl, William R. Aro, Gregory Paul Matthews
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Publication number: 20030213469Abstract: An engine control system and method smoothes torque during transitions in a displacement on demand engine. A torque loss estimator generates a torque loss signal based on torque loss due to at least one of friction, pumping and accessories. A pedal torque estimator generates a pedal torque signal. An idle torque estimator generates an idle torque signal. A summing circuit generates a difference between the pedal torque signal and the idle torque and the torque loss signals and outputs a desired brake torque signal.Type: ApplicationFiled: May 17, 2002Publication date: November 20, 2003Inventor: Allen B. Rayl
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Publication number: 20030213470Abstract: A pressure-elevating type fuel injecting system pressurizes high pressure fuel from a pressure accumulating chamber using a pressure-elevating mechanism and injects the pressure-elevated fuel into combustion chambers by injectors. The pressure-elevating type fuel injecting system comprises a target fuel injection quantity setting unit which sets a target fuel injection quantity, a time difference setting unit which sets a time difference between a timing for opening an injector electromagnetic valve and a timing for operating an pressure-elevating mechanism electromagnetic valve, an initial fuel injection quantity calculating unit calculating an initial fuel injection quantity on the basis of a time-dependent variation of fuel pressure and the time difference, and a final injection period setting unit which calculates an operation period of the injector electromagnetic valve, on the basis of a final fuel injection quantity and the time-dependent variation of the pressure of the pressure-elevated fuel.Type: ApplicationFiled: April 15, 2003Publication date: November 20, 2003Inventors: Susumu Kohketsu, Shinji Nakayama, Keiki Tanabe
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Publication number: 20030213471Abstract: The fuel injection system has a high-pressure pump which pumps fuel into a reservoir to be supplied to injectors disposed at the engine cylinders. A feed pump supplies fuel to the high-pressure pump. The high-pressure pump has at least one pump element including a pump piston that defines a work chamber and is driven in a reciprocating motion; the work chamber has a communication with the compression side of the feed pump, in which an intake valve opening toward the work chamber is disposed, and through which valve fuel flows into the work chamber upon the intake stroke of the pump piston. The intake valve has a valve member, which is urged in a closing direction by a closing spring, and the closing spring is braced at least indirectly on the pump piston; with an increasing intake stroke of the pump piston, the closing force exerted on the valve member by the closing spring becomes less. A minimal opening differential pressure of the intake valve is less than 0.9 bar.Type: ApplicationFiled: April 23, 2003Publication date: November 20, 2003Applicant: Robert Bosch GmbHInventors: Stefan Kieferle, Achim Koehler, Sascha Ambrock
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Publication number: 20030213472Abstract: A fuel injection apparatus in which a fuel injector, a stopper and a fuel delivery pipe can be efficiently assembled. The fuel injector, the stopper and the fuel delivery pipe are preliminarily connected in a predetermined positional relationship, and supported and secured by a resinous holder, a metal plate holder or the like. As a result, it becomes possible to handle the fuel injector, the stopper and the fuel delivery pipe as one part.Type: ApplicationFiled: January 23, 2003Publication date: November 20, 2003Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Mikihiko Suzuki, Tetsuji Kondo
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Publication number: 20030213473Abstract: A device and a method for determining a fuel pressure and/or an injected amount of fuel are described. A fuel injection unit meters the fuel to an internal combustion engine as a function of a first and a second trigger signal. The first trigger signal controls the start and end of fuel metering, and the second trigger signal controls the pressure buildup. The variation of pressure is determined on the basis of at least the first trigger signal and the second trigger signal.Type: ApplicationFiled: March 21, 2003Publication date: November 20, 2003Inventors: Derek Coates, Lars Empacher
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Publication number: 20030213474Abstract: The invention provides an improvement over conventional engine controls by directly measuring fuel volatility, and using this measured value to adjust the engine air/fuel ratio during engine start and initial operation. Engine startability and initial operation are improved as compared to conventional engine control systems by compensating the engine air/fuel ratio during engine start and initial engine operation, using a direct measurement of the fuel volatility.Type: ApplicationFiled: May 16, 2002Publication date: November 20, 2003Inventors: David K. Lambert, Gary Charles Abusamra, Charles Robert Harrington, John E. Kirwan, Han-Sheng Lee, Michael Joseph Niemiec
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Publication number: 20030213475Abstract: The present invention provides an improvement over conventional engine controls by adjusting engine air/fuel [AF] ratio, as a function of fuel volatility, during engine start and initial operation. It is comprised of three detection tests to determine the volatility of the fuel and provide compensation to the AF ratio in proportion to that volatility during engine crank and initial operation. The method includes compensating for incomplete fuel vaporization as a function of predicted intake valve temperature.Type: ApplicationFiled: May 16, 2002Publication date: November 20, 2003Inventors: William R. Robertson, Sergio Eduardo Garcia, Craig A. Carlson, Darrell W. Burleigh
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Publication number: 20030213476Abstract: The invention relates to a method and an arrangement for correcting a fuel quantity which is supplied to an internal combustion engine. The correction is carried out in dependence upon a first corrective value for a start phase of the engine and a second corrective value for a restart of the engine. In this way, a precise fuel precontrol can be carried out.Type: ApplicationFiled: May 8, 2003Publication date: November 20, 2003Inventors: Klaus Joos, Karsten Kroepke, Ruediger Weiss, Martin Schlemmer
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Publication number: 20030213477Abstract: A fuel pump module includes a reservoir having a jet pump attached to the outer surface of the reservoir. The jet pump includes a pump body which is ultrasonically welded to the reservoir and a jet nozzle which extends from the pump body towards an inlet to the reservoir. An alignment device or the jet pump engages an alignment device on the reservoir to ensure that the jet nozzle will be in accurate alignment with the inlet of the reservoir.Type: ApplicationFiled: May 20, 2002Publication date: November 20, 2003Inventors: Dhyana Ramamurthy, Tatsuya Matsumoto
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Publication number: 20030213478Abstract: A method checks the operability of a tank-venting system for a motor vehicle having an internal combustion engine. The tank-venting system includes a fuel tank (10), an adsorption filter (20) and a filter line (12) connecting the adsorption filter to the fuel tank. The adsorption filter (20) has a venting line (22) and a switchover/check valve (70) is provided for closing off the venting line (22). The system includes a tank-venting valve (90) and a valve line (24) connecting the tank-venting valve to the adsorption filter. In the method, an overpressure relative to atmospheric pressure is introduced into the tank-venting system utilizing a drivable pressure source (50). An operating characteristic variable of the pressure source is detected while introducing the overpressure to determine the pressure course. A conclusion is drawn as to the presence of a leak from the pressure course.Type: ApplicationFiled: March 5, 2003Publication date: November 20, 2003Inventors: Thorsten Fritz, Dieter Lederer, Karl-Bernhard Lederle
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Publication number: 20030213479Abstract: A positive crankcase ventilation valve assembly including a housing having a fluid inlet and outlet. A poppet valve is arranged in the housing between the fluid inlet and outlet and is movable in a axial direction between a plurality of positions. The positions respectively define a plurality of fluid flow rates. A plurality of ribs extend radially from either the poppet valve and the housing in an axial direction. The ribs define a bearing surface between the housing and the poppet valve. In this manner, the poppet valve is supported within the housing with a reduced bearing surface area while aligning the poppet valve relative to the housing throughout its movement between the positions. In another embodiment, the poppet valve is eliminated to prevent problems associated with an improperly operating poppet valve. A diaphragm is arranged in the housing between the fluid inlet and outlet.Type: ApplicationFiled: August 28, 2002Publication date: November 20, 2003Inventor: Tim Wade
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Publication number: 20030213480Abstract: A multi-orifice crankcase air evacuator assembly for a diesel engine which provides improved efficiency and effectiveness of crankcase air removal into the exhaust port of the engine. A multi-orifice nozzle preferably has five nozzle orifices arranged in an “X” pattern. The evacuation tube has a tube body defining a central passage and a bell-mouth concentrically disposed at its inlet. The central passage includes an air mixer and an air diffuser. Operatively, compressed air pressurably effuses from the nozzle orifices into the central passage, whereupon a low pressure region is established surrounding the bell-mouth which causes crankcase air to be sucked into the evacuator tube and thereupon be expelled to an exhaust port.Type: ApplicationFiled: September 13, 2002Publication date: November 20, 2003Inventors: Joshua D. Schueler, Gary R. Svihla
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Publication number: 20030213481Abstract: An infeed connector for coupling an outlet pipe of a bulk loading hopper to an inlet pipe of a paintball gun is provided comprising a pipe section having a first end for receiving the outlet pipe therewithin and a second end for receiving the inlet pipe therewithin. The first and second ends are formed with compression fittings, the compression fitting at each end further having external annular threads therearound for receiving a compression nut. First and second compression nuts are provided having internal annular threads for threading on the annular threads of each respective pipe section compression fitting and operable when fully threaded thereon and tightened to secure a respective end of each outlet pipe and said inlet pipe, within a corresponding end of the infeed connector.Type: ApplicationFiled: May 16, 2002Publication date: November 20, 2003Inventor: David Wesley Bell
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Publication number: 20030213482Abstract: For a power cut-off saw, a debris-collection device pivotably mountable to the cut-off saw. The device has a collection chamber with a top slot and a front slot in communication with the top slot. Both slots are adapted to receive the cut-off saw blade; the front slot is adapted to capture dust from the cut. A debris-control component may, but need not, cover the top slot and permits entry of the saw blade but prevents dust from escaping. A discharge arm on the top of the collection chamber has a hollow channel which communicates with the collection chamber and facilitates the discharge of dust from the collection chamber by an externally connected vacuum source which suctions out the collected dust.Type: ApplicationFiled: May 15, 2002Publication date: November 20, 2003Inventors: John P. Buser, Terry R. Alley
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Publication number: 20030213483Abstract: A saw blade of uniform abrasive segments with undercut protection to prevent loss of segments and to extend blade life. A metal core includes a uniform peripheral contour formed as a series of spaced apart, segment mounting sections separated by radial gullet channels. A diamond cutting segment is securely bonded to each such mounting section at a bonding interface between the segment and the metal core. Adjacent the ends of each segment on opposite sides of successive gullet channels, are upstanding ears which at least register with and extend through the radial arc of the bonding interface between the segments and the metal core. Both the upstanding ears and the region beneath each segment are preferably overcoated with a wear protection material such as carbide. The overcoated region beneath each segment includes a contoured edge to assist in directing swarf away from the cutting groove.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Applicant: Diamant Boart, Inc.Inventor: Metin Sakarcan
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Publication number: 20030213484Abstract: A removable burner assembly is provided for a gas barbecue grill. The removable burner assembly has a burner frame having an open bottom and an open top, a burner connected to the burner frame, and a manifold in fluid communication with the burner. The burner frame, with the connected burner, is adapted to be removably mounted as a self-contained subassembly in the housing of the grill.Type: ApplicationFiled: May 15, 2002Publication date: November 20, 2003Inventors: J. Michael Alden, Leonard G. Zelek, James C. Stephen
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Publication number: 20030213485Abstract: A heating unit has a cartridge that constitutes a single component, which can be readily removed and replaced with a new cartridge. The cartridge is a plurality of non-flammable layers bound together in a border. The layers include a stainless steel mesh located above a layer of ceramic wool. With the cartridge, replacement can be accomplished in approximately fifty minutes compared to a downtown of a week or more previously.Type: ApplicationFiled: October 1, 2002Publication date: November 20, 2003Inventor: Robert E. Kieswetter
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Publication number: 20030213486Abstract: An intake valve includes a bladder having a face piece coupled to one end and an opening formed in the other end, a cover attached to the other end of the bladder and having a port coupled to an air reservoir and having a hub coupled to a container, which may be used for pumping air into the bladder when the air in the air reservoir has been consumed. The cover has a check valve for air to flow into the cover when the container is expanded, and for pumping air into the bladder when the container is squeezed. Another check valve may be used for outward flowing of excess air.Type: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventor: Chih Hua Wang
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Publication number: 20030213487Abstract: An apparatus for concentrating the oxygen content of and injecting aroma into a stream of air and delivering the stream of air to the nostrils of a person includes an air intake filter in fluid communication with the air compressor for drawing a stream of air out of the surrounding atmosphere; a sieve bed in fluid communication with the air intake means, each sieve bed containing a quantity of nitrogen absorption material and having sieve bed input and output valve mechanism; so that the sieve bed extracts nitrogen from the air stream so that the proportion of oxygen exiting the sieve bed is elevated, and as the input valve mechanism closes, the sieve bed output valve mechanism opens and vents absorbed nitrogen from the sieve bed to the atmosphere; an aroma chamber containing aroma releasing material in fluid communication with the output valve mechanism so that the stream of air is delivered through the aroma chamber and receives and retains an aroma; and a canula comprising an exit port having a nose deliveType: ApplicationFiled: May 14, 2002Publication date: November 20, 2003Inventors: Duard I. Hardy, Thierry de Beaurepaire
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Publication number: 20030213488Abstract: The present invention relates to systems and methods for automatically and continuously regulating the level of nasal pressure to an optimal value during OSA treatment. OSA therapy is implemented by a device which automatically re-evaluates an applied pressure and continually searches for a minimum pressure required to adequately distend a patient's pharyngeal airway. For example, this optimal level varies with body position and stage of sleep throughout the night. In addition, this level varies depending upon the patient's body weight and whether or not alcohol or sleeping medicine has been ingested.Type: ApplicationFiled: March 12, 2003Publication date: November 20, 2003Inventors: John Edward Remmers, Thomas Richard Feroah
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Publication number: 20030213489Abstract: An interactive pressure support system and method employing a pressure generating system that provides a pressure therapy to the pulmonary system of a patient and an interactive system associated with the pressure generating system to enable the patient to interact with the pressure support system, for example, to monitor the effectiveness of the treatment provided by the pressure support system. The interactive system includes an output device that provides first information to the patient, an input device that allows the patient to provide second information that is based on the first information and a control unit that controls the operation of the output device to present the first information and collection of the second information via the input device. In a further embodiment, the operation of the pressure generating system is controlled based on the second information provided by the patient.Type: ApplicationFiled: April 28, 2003Publication date: November 20, 2003Inventors: Douglas M. Mechlenburg, Mark C. Estes, William H. Broadley, J. Raymond Pujol
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Publication number: 20030213490Abstract: An apparatus for controlling dispensing of medical gases, comprising a unit for supplying medical gas, connected hermetically by way of a tube to a gas dispenser connected to a patient, a detector located along the tube for detecting correct respiration of the patient with at least one pressure sensor that detects cyclic pressure increases inside the dispenser caused by patient expirations, binary output signals being conveyed by the sensor to the detector which compares periodicity of the signals with a reference physiological periodicity, and an alarm indicator controlled by the detector and activated if the periodicity does not occur.Type: ApplicationFiled: May 15, 2003Publication date: November 20, 2003Applicant: SIM ITALIA S.R.L.Inventor: Roberto Righetti