Patents by Inventor Alois Wolfsgruber
Alois Wolfsgruber 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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Patent number: 7552721Abstract: A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder head and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.Type: GrantFiled: July 10, 2006Date of Patent: June 30, 2009Assignee: BRP-Powertrain GmbH & Co KGInventors: Alois Wolfsgruber, Rudolf Tscherne, Joseph Stockhammer, Markus Hochmayr
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Publication number: 20070105465Abstract: A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder bead and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.Type: ApplicationFiled: December 21, 2006Publication date: May 10, 2007Applicant: BRP-ROTAX GMBH & CO. KGInventors: Alois Wolfsgruber, Rudolf Tscherne, Andreas Bilek
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Publication number: 20070068465Abstract: A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder head and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.Type: ApplicationFiled: July 10, 2006Publication date: March 29, 2007Applicant: BRP-ROTAX GMBH & CO. KGInventors: Alois Wolfsgruber, Rudolf Tscherne, Joseph Stockhammer, Markus Hochmayr
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Patent number: 7101238Abstract: A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder head and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.Type: GrantFiled: September 30, 2003Date of Patent: September 5, 2006Assignee: BRP-Rotax GmbH & Co. KGInventors: Manfred Aichinger, Rudolf Tscherne, Alois Wolfsgruber, Michael Sonnleitner, Johann Holzleitner
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Patent number: 7077113Abstract: A combined flame arrester and intercooler for cooling intake gas for an internal combustion engine is disclosed. The intercooler comprises an elongated body having a longitudinal axis. The elongated body has a central passageway that extends substantially parallel to the longitudinal axis. An inlet opening is located on one end of the elongated body such that the intake gas enters the central passageway though the inlet opening. The intercooler further includes a plurality of cooling tubes forming at least a portion of the elongated body. The plurality of tubes substantially surround the central passageway. Each of the cooling tubes is spaced from an adjacent cooling tube such that an air flow path is formed there between. The intake gas is cooled by flowing past the cooling tubes. Preferably, the intake gas flows along the central passageway in the elongated body and radially outward therefrom through the air flow path between the cooling tubes.Type: GrantFiled: December 15, 2003Date of Patent: July 18, 2006Assignee: BRP-Rotax GmbH & Co. KGInventors: Andreas Bilek, Alois Wolfsgruber, Rudolf Tscherne, Jean-Charles Pouillard, Michael Sonnleitner
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Publication number: 20040206340Abstract: A combined flame arrester and intercooler for cooling intake gas for an internal combustion engine is disclosed. The intercooler comprises an elongated body having a longitudinal axis. The elongated body has a central passageway that extends substantially parallel to the longitudinal axis. An inlet opening is located on one end of the elongated body such that the intake gas enters the central passageway though the inlet opening. The intercooler further includes a plurality of cooling tubes forming at least a portion of the elongated body. The plurality of tubes substantially surround the central passageway. Each of the cooling tubes is spaced from an adjacent cooling tube such that an air flow path is formed there between. The intake gas is cooled by flowing past the cooling tubes. Preferably, the intake gas flows along the central passageway in the elongated body and radially outward therefrom through the air flow path between the cooling tubes.Type: ApplicationFiled: December 15, 2003Publication date: October 21, 2004Inventors: Andreas Bilek, Alois Wolfsgruber, Rudolf Tscherne, Jean-Charles Pouillard, Michael Sonnleitner
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Publication number: 20040069250Abstract: A personal watercraft is disclosed with a hull, a seating assembly, and a four stroke internal combustion engine below the seating assembly. The engine has at least one intake valve for each of the combustion cylinder chambers, at least one exhaust valve for each of the combustion cylinder chambers, and a valve actuation assembly located in a cylinder head for operating the intake and exhaust valves. At least one air intake passageway is operatively coupled to the combustion cylinder chambers through the intake valves. An air intake manifold is connected to the cylinder head and operatively connected to the at least one air intake passageway. The engine also has a supercharger for boosting air to the air intake manifold. The watercraft also includes a propulsion unit, operatively coupled to the crankshaft, which is located on one end of the two ends of the crankcase.Type: ApplicationFiled: September 30, 2003Publication date: April 15, 2004Applicant: BOMBARDIER-ROTAX GmbHInventors: Manfred Aichinger, Rudolf Tscherne, Alois Wolfsgruber, Michael Sonnleitner, Johann Holzleitner
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Patent number: 6626140Abstract: A four stroke internal combustion engine is disclosed having a power take off housing located at one end of the engine. A crankshaft is operatively connected to a drive shaft and the cam shaft within the power take off housing. Furthermore, the crankshaft is operatively coupled within the power take off housing to at least one of a generator, an engine starting mechanism, a balance shaft, and a supercharger.Type: GrantFiled: February 28, 2001Date of Patent: September 30, 2003Assignee: Bombardier-Rotax GmbHInventors: Manfred Aichinger, Rudolf Tscherne, Alois Wolfsgruber, Michael Sonnleitner, Johann Holzleitner
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Patent number: 6601528Abstract: The four stroke internal engine having an air intake system connected to the cylinder head and operatively connected to the intake passageway. The air intake system includes an air intake manifold having symmetrical construction with a central air passageway extending between a first end and a second end. At least one passageway extends from the central air passageway to a free end, which is operatively coupled to the intake passageway. The air intake system is usable for both a supercharged and normally aspirated engines.Type: GrantFiled: February 28, 2001Date of Patent: August 5, 2003Assignee: Bombardier-Rotax GmbHInventors: Andreas Bilek, Alois Wolfsgruber, Markus Hochmayr
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Patent number: 6591819Abstract: A four stroke internal combustion engine is disclosed having a lubrication system for circulating lubricant within the engine. The engine further include a system for separating lubricant from blow-by gas within the crank case.Type: GrantFiled: February 28, 2001Date of Patent: July 15, 2003Assignee: Bombardier-Rotax GmbHInventors: Rudolf Tscherne, Alois Wolfsgruber, Roland Ennsmann
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Patent number: 6544086Abstract: A four stroke internal combustion engine having cooling system for cooling the engine is disclosed. The cooling system includes a closed loop cooling system for cooling at least a portion of the engine. The cooling system also includes an open loop cooling system for cooling at least a portion of the engine. The open loop cooling system uses coolant from an external source (e.g., a body of water) to cool the engine.Type: GrantFiled: February 28, 2001Date of Patent: April 8, 2003Assignee: Bombardier-Rotax GmbHInventors: Rudolf Tscherne, Alois Wolfsgruber
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Patent number: 6415759Abstract: A four stroke internal combustion engine having a flexible arrangement is disclosed such that the engine can be easily configured for supercharged or normally aspirated operation. The engine includes a cooling system that includes both closed loop and open loop cooling systems for improved cooling efficiency. A power take off housing located on one end of the crankcase. Various engine components are operatively coupled to the crankshaft within the power take off housing including a cam shaft for a valve actuation assembly, a generator, an engine starting mechanism, a balance shaft, and a supercharger. The engine contemplated in accordance with the present invention also includes a dry sump lubrication system having lubricant separator for separating lubricant from blow-by gas within the engine.Type: GrantFiled: February 28, 2001Date of Patent: July 9, 2002Assignee: Bombardier-Rotax GmbHInventors: Gerd Ohrnberger, Norbert Korenjak, Alois Wolfsgruber, Rudolf Tscherne
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Patent number: 6390869Abstract: A four stroke internal combustion engine includes a cylinder head having a valve train having reduced profile that permits access to a spark plug assembly located therein.Type: GrantFiled: February 28, 2001Date of Patent: May 21, 2002Assignee: Bombardier-Rotax GmbHInventors: Norbert Korenjak, Rudolf Tscherne, Alois Wolfsgruber, Rudolf Kusel
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Publication number: 20020000224Abstract: A four stroke internal combustion engine is disclosed having a lubrication system for circulating lubricant within the engine. The engine further include a system for separating lubricant from blow-by gas within the crank case.Type: ApplicationFiled: February 28, 2001Publication date: January 3, 2002Inventors: Rudolf Tscherne, Alois Wolfsgruber, Roland Ennsmann
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Publication number: 20010053640Abstract: A four stroke internal combustion engine includes a cylinder head having a valve train having reduced profile that permits access to a spark plug assembly located therein.Type: ApplicationFiled: February 28, 2001Publication date: December 20, 2001Inventors: Norbert Korenjak, Rudolf Tscherne, Alois Wolfsgruber, Rudolf Kusel
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Publication number: 20010042532Abstract: A four stroke internal combustion engine is disclosed having a power take off housing located at one end of the engine. A crankshaft is operatively connected to a drive shaft and the cam shaft within the power take off housing. Furthermore, the crankshaft is operatively coupled within the power take off housing to at least one of a generator, an engine starting mechanism, a balance shaft, and a supercharger.Type: ApplicationFiled: February 28, 2001Publication date: November 22, 2001Inventors: Manfred Aichinger, Rudolf Tscherne, Alois Wolfsgruber, Michael Sonnleitner, Johann Holzleitner
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Publication number: 20010044244Abstract: A four stroke internal combustion engine having cooling system for cooling the engine is disclosed. The cooling system includes a closed loop cooling system for cooling at least a portion of the engine. The cooling system also includes an open loop cooling system for cooling at least a portion of the engine. The open loop cooling system uses coolant from an external source (e.g., a body of water) to cool the engine.Type: ApplicationFiled: February 28, 2001Publication date: November 22, 2001Inventors: Rudolf Tscherne, Alois Wolfsgruber
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Publication number: 20010039908Abstract: The four stroke internal engine having an air intake system connected to the cylinder head and operatively connected to the intake passageway. The air intake system includes an air intake manifold having symmetrical construction with a central air passageway extending between a first end and a second end. At least one passageway extends from the central air passageway to a free end, which is operatively coupled to the intake passageway. The air intake system is usable for both a supercharged and normally aspirated engines.Type: ApplicationFiled: February 28, 2001Publication date: November 15, 2001Inventors: Andreas Bilek, Alois Wolfsgruber, Markus Hochmayr
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Publication number: 20010039934Abstract: A four stroke internal combustion engine having a flexible arrangement is disclosed such that the engine can be easily configured for supercharged or normally aspirated operation. The engine includes a cooling system that includes both closed loop and open loop cooling systems for improved cooling efficiency. A power take off housing located on one end of the crankcase. Various engine components are operatively coupled to the crankshaft within the power take off housing including a cam shaft for a valve actuation assembly, a generator, an engine starting mechanism, a balance shaft, and a supercharger. The engine contemplated in accordance with the present invention also includes a dry sump lubrication system having lubricant separator for separating lubricant from blow-by gas within the engine.Type: ApplicationFiled: February 28, 2001Publication date: November 15, 2001Inventors: Gerd Ohrnberger, Norbert Korenjak, Alois Wolfsgruber, Rudolf Tscherne