Patents by Inventor Johannes Leweux
Johannes Leweux has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090114192Abstract: In an injector for an accumulator injection system comprising an injector having an injector housing with an injection nozzle and an actuator for operating the injection nozzle arranged in a fuel-filled pressure space of the injector housing wherein the actuator includes a piezoelectric element disposed between an actuator head and an actuator the base with a fuel-tight casing at least partially surrounding the actuator head and the actuator base, the casing is engaged in a sealing fashion by a first annular element with the actuator base and by a second annular element with the actuator head.Type: ApplicationFiled: September 18, 2008Publication date: May 7, 2009Inventors: Stefan Espig, Bernhard Jutz, Johannes Leweux, Gregor Renner, Heiko Sass, Nicole Schlegl, Holger Stark, Thomas Stolk, Andreas Vortmeier
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Patent number: 7318395Abstract: In an internal combustion engine having a coolant circuit which comprises a first coolant line for the cylinder block and a second coolant line for the cylinder head of the engine, with the cylinder head having at least one inlet valve and at least one outlet valve per cylinder, an additional coolant duct provided in the cylinder head in close proximity to the valves is connected to the second coolant line for directly supplying coolant to the area of the cylinder outlet valves.Type: GrantFiled: August 17, 2005Date of Patent: January 15, 2008Assignee: Daimler Chrysler AGInventors: Jurgen Huter, Bernhard Jutz, Johannes Leweux, Harald Pfeffinger, Heiko Sass, Timo Schmidt, Karsten Unger
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Patent number: 7267045Abstract: In an internal combustion engine for a motor vehicle, having a piston bearing surface divided into regions of different loading and having recesses for retaining lubricant arranged at distances which are shorter in regions of high loading than in regions of lower loading in a region with high loading, the distance between the recesses decreases from one recess to the next in the direction toward top dead center area with the smallest distance being at the top dead center position of the piston.Type: GrantFiled: July 19, 2006Date of Patent: September 11, 2007Assignee: DaimlerChrysler AGInventors: Johannes Leweux, Wolfgang Pellkofer, Harald Pfeffinger
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Publication number: 20060278071Abstract: In an internal combustion engine for a motor vehicle, having a piston bearing surface divided into regions of different loading and having recesses for retaining lubricant arranged at distances which are shorter in regions of high loading than in regions of lower loading in a region with high loading, the distance between the recesses decreases from one recess to the next in the direction toward top dead center area with the smallest distance being at the top dead center position of the piston.Type: ApplicationFiled: July 19, 2006Publication date: December 14, 2006Inventors: Johannes Leweux, Wolfgang Pellkofer, Harald Pfeffinger
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Patent number: 7089820Abstract: In a motor vehicle engine and transmission support arrangement at the front end of a motor vehicle wherein the engine has a drive shaft with a drive wheel mounted thereon, and a torque converter unit with an input shaft and an input wheel mounted on the input shaft which is vertically displaced from the output shaft of the engine a power transmission structure is disposed between the drive wheel of the engine and the input wheel of the torque converter unit for transmitting the engine power to the torque converter unit.Type: GrantFiled: June 23, 2004Date of Patent: August 15, 2006Assignee: DaimlerChrysler AGInventors: Jürgen Huter, Bernhard Jutz, Johannes Leweux, Dieter Nowak, Hubert Schnübke, Alexander von Gaisberg-Helfenberg
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Patent number: 7040271Abstract: In a method for making it easier to start an internal combustion engine having at least one cylinder in which there is at least one piston which is intended to execute an oscillating motion between a top dead center and a bottom dead center, air or a fuel-air mixture is drawn in via an induction line as a result of a movement of the piston toward the bottom dead center. After the bottom dead center has been passed and after the piston has started to move toward the top dead center, the air or the fuel-air mixture is discharged from the cylinder via the induction line. Intake valves are closed at a time which is shifted toward the top dead center. A control element arranged in the induction line closes the induction line after the piston has passed the bottom dead center.Type: GrantFiled: April 18, 2003Date of Patent: May 9, 2006Assignee: DaimlerChrysler AGInventors: Roland Kemmler, Johannes Leweux, Dietmar Schroeer
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Patent number: 7021265Abstract: A unit carrier for secondary units of a motor vehicle internal combustion engine, having secondary unit attachment devices and engine block attachment devices. The unit carrier has a planned deformation point, which allows a relative displacement between the secondary unit and the engine block in case of a vehicle collision, if a predefined force is exceeded. The unit carrier is used in motor vehicles having a front engine arrangement.Type: GrantFiled: June 25, 2004Date of Patent: April 4, 2006Assignee: DaimlerChrysler AGInventors: Johannes Leweux, Jürgen Schäfer, Hubert Schnüpke, Dietmar Schröer, Nico Siebert, Karsten Unger
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Publication number: 20060021328Abstract: In an exhaust gas recirculation device for an internal combustion engine, with an intake duct connected to the inlet side of the internal combustion engine and an exhaust duct connected to the outlet side of the internal combustion engine and at least one exhaust gas purification element arranged in the exhaust duct, a second exhaust gas recirculation line is connect the exhaust duct and extends to the intake duct for the recirculation of exhaust gas from different locations of the exhaust duct and a first and a second control element are provided for controlling the exhaust gas flow quantities flowing respectively through the first and the second exhaust gas recirculation line.Type: ApplicationFiled: July 25, 2005Publication date: February 2, 2006Inventors: Johannes Leweux, Harald Tober
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Publication number: 20060011151Abstract: In an internal combustion engine having a coolant circuit which comprises a first coolant line for the cylinder block and a second coolant line for the cylinder head of the engine, with the cylinder head having at least one inlet valve and at least one outlet valve per cylinder, an additional coolant duct provided in the cylinder head in close proximity to the valves is connected to the second coolant line for directly supplying coolant to the area of the cylinder outlet valves.Type: ApplicationFiled: August 17, 2005Publication date: January 19, 2006Inventors: Jurgen Huter, Bernhard Jutz, Johannes Leweux, Harald Pfeffinger, Heiko Sass, Timo Schmidt, Karsten Unger
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Publication number: 20050183528Abstract: In a motor vehicle engine and transmission support arrangement at the front end of a motor vehicle wherein the engine has a drive shaft with a drive wheel mounted thereon, and a torque converter unit with an input shaft and an input wheel mounted on the input shaft which is vertically displaced from the output shaft of the engine a power transmission structure is disposed between the drive wheel of the engine and the input wheel of the torque converter unit for transmitting the engine power to the torque converter unit.Type: ApplicationFiled: June 23, 2004Publication date: August 25, 2005Inventors: Jurgen Huter, Bernhard Jutz, Johannes Leweux, Dieter Nowak, Hubert Schnubke, Alexander Gaisberg-Helfenberg
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Publication number: 20050000482Abstract: A unit carrier for secondary units of a motor vehicle internal combustion engine, having secondary unit attachment devices and engine block attachment devices. The unit carrier has a planned deformation point, which allows a relative displacement between the secondary unit and the engine block in case of a vehicle collision, if a predefined force is exceeded. The unit carrier is used in motor vehicles having a front engine arrangement.Type: ApplicationFiled: June 25, 2004Publication date: January 6, 2005Inventors: Johannes Leweux, Jurgen Schafer, Hubert Schnupke, Dietmar Schroer, Nico Siebert, Karsten Unger
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Publication number: 20040011315Abstract: In a method for making it easier to start an internal combustion engine having at least one cylinder in which there is at least one piston which is intended to execute an oscillating motion between a top dead center and a bottom dead center, air or a fuel-air mixture is drawn in via an induction line as a result of a movement of the piston toward the bottom dead center. After the bottom dead center has been passed and after the piston has started to move toward the top dead center, the air or the fuel-air mixture is discharged from the cylinder via the induction line. Intake valves are closed at a time which is shifted toward the top dead center. A control element arranged in the induction line closes the induction line after the piston has passed the bottom dead center.Type: ApplicationFiled: April 18, 2003Publication date: January 22, 2004Inventors: Roland Kemmler, Johannes Leweux, Dietmar Schroeer
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Publication number: 20040000657Abstract: A device and a method are for closing a flow duct. The device has a valve which may be pivoted between an open position and a closed position by a valve shaft and has at least one valve wing which, in the closed position, rests against a sealing contour provided in the flow duct. The valve wing is of elastic configuration and the sealing contour or the valve wing is arranged such that first of all a region, at a distance from the valve shaft in the radial direction, of the valve wing comes into contact with the sealing contour when the valve wing is being brought into contact with the sealing contour, and that, during further pivoting of the valve shaft, the valve wing is deformed to such an extent that it rests substantially completely against the sealing contour.Type: ApplicationFiled: April 18, 2003Publication date: January 1, 2004Inventors: Thomas Betz, Johannes Leweux, Hubert Schnuepke, Dietmar Schroeer
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Patent number: 6223714Abstract: Switching off a fuel pump of a fuel supply system for the internal combustion engine with the aid of a signal from a retardation sensor of the airbag in the event of a crash in which the motor vehicle is involved is known. To further enhance the safety of motor-vehicle occupants, a method is proposed for an internal combustion engine which has at least one fuel injection valve, a fuel supply system for the at least one fuel injection valve, and a sensor for detecting a crash. After the crash has been detected by means of the sensor, the fuel injection valve is brought into an open position, with the result that fuel is discharged from the fuel supply system of the fuel injection valve into a combustion chamber of the internal combustion engine. The method according to the invention is provided for internal combustion engines with at least one fuel injection valve.Type: GrantFiled: September 21, 1999Date of Patent: May 1, 2001Assignee: DaimlerChrysler AGInventors: Alexander Anderson, Gunter Karl, Rudolf Klein, Stephan Kramer, Peter Lautenschutz, Johannes Leweux, Christoph Lux, Gregor Renner, Klaus Rossler, Matthias Schumacher
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Patent number: 5669346Abstract: In an engine block comprising a casting including side walls extending along a row of cylinders and front and rear walls extending between the side walls with top flanges for mounting a cylinderhead and bottom flanges for mounting an oil pan, the side walls have sections extending forwardly beyond the front wall to define therebetween a timing drive chamber.Type: GrantFiled: March 15, 1996Date of Patent: September 23, 1997Assignee: Mercedes-Benz AGInventors: Johannes Leweux, Hubert Schnupke, Albert Pietsch