Patents by Inventor Torsten Hilpert
Torsten Hilpert 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: 8230845Abstract: The invention concerns a device for separating fluid particles from a gas flow, in particular from a crankcase gas flow of an internal combustion engine. A valve is provided to allow a distribution of the gas flow to at least two cyclones depending on the volumetric flow. The valve consists of a cylinder through which the gas can flow. Inside the cylinder is a piston. This piston is designed inside the cylinder with a clearance fit or provided with one or several boreholes. In case of a low gas flow and because of the tolerances or boreholes, this gas flow will be directed around the cylinder to a first cyclone. When exceeding a certain volumetric flow the piston moves inside the cylinder and opens at least one more cyclone for the gas flow to flow through.Type: GrantFiled: March 16, 2007Date of Patent: July 31, 2012Assignee: Mann+Hummel GmbHInventor: Torsten Hilpert
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Publication number: 20100043763Abstract: The invention concerns a device for separating fluid particles from a gas flow, in particular from a crankcase gas flow of an internal combustion engine. A valve is provided to allow a distribution of the gas flow to at least two cyclones depending on the volumetric flow. The valve consists of a cylinder through which the gas can flow. Inside the cylinder is a piston. This piston is designed inside the cylinder with a clearance fit or provided with one or several boreholes. In case of a low gas flow and because of the tolerances or boreholes, this gas flow will be directed around the cylinder to a first cyclone. When exceeding a certain volumetric flow the piston moves inside the cylinder and opens at least one more cyclone for the gas flow to flow through.Type: ApplicationFiled: March 16, 2007Publication date: February 25, 2010Applicant: MANN+HUMMEL GMBHInventor: Torsten Hilpert
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Patent number: 7406961Abstract: Apparatus for separating oil from crankcase ventilation gases of an internal combustion engine having at least two oil separators in the form of cyclones connected in parallel and traversed by the crankcase ventilation gases. The apparatus is equipped with a control valve that divides the volumetric flow of the crankcase ventilation gases into at least two subflows, depending on the magnitude of the volumetric flow, and conducts the subflows to the at least two oil separators. A control piston releases or blocks access of the gases to additional cyclones depending on the dynamic pressure of the crankcase gas.Type: GrantFiled: December 2, 2005Date of Patent: August 5, 2008Assignee: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann, Thomas Schleiden, Andreas Beck, Andreas Weber
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Publication number: 20070012271Abstract: A cylinder head cover for a cylinder head of an internal combustion engine having a gasket element between the cylinder head and the cylinder head cover in which the gasket element includes a vacuum chamber which is open on at least one side and produces a seal between the cylinder head cover and the cylinder head when a vacuum is applied.Type: ApplicationFiled: June 30, 2006Publication date: January 18, 2007Applicant: Mann & Hummel GmbHInventor: Torsten Hilpert
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Patent number: 7159723Abstract: A cyclone separator including an initial cyclone arrangement (1) arranged first in relation to a flow direction (18) through the separator; a second cyclone arrangement (2) connected in series with the initial cyclone arrangement; a bypass channel (3) bypassing the second cyclone arrangement (2), and a volumetric flow controlled valve device (4) for selectively directing a partial stream (5) through the bypass channel (3).Type: GrantFiled: November 7, 2003Date of Patent: January 9, 2007Assignee: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann
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Patent number: 7137372Abstract: A cylinder head cover, particularly for covering a cylinder head of an internal combustion engine, having a plurality of functional elements such as an oil filling connection and at least one oil separation device mounted thereon. The cylinder head cover is formed by a bottom shell and a top shell, with the functional elements each being formed from two segments. One segment is integrally arranged on the bottom shell, and the second segment is integrally arranged on the top shell. The two shells are interconnected by communicating sealing contours. Essential functional parts of the oil separation device are provided on the bottom shell and on the top shell. Preferably the functional elements include a cyclone which separates entrained oil from gases in the cylinder head cover and includes a cup arranged on the bottom shell and an immersion tube arranged on the top shell.Type: GrantFiled: January 31, 2005Date of Patent: November 21, 2006Assignee: Mann & Hummel GmbHInventors: Torsten Hilpert, Andreas Weber, Alexander Korn
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Publication number: 20060112941Abstract: Apparatus for separating oil from crankcase ventilation gases of an internal combustion engine having at least two oil separators in the form of cyclones connected in parallel and traversed by the crankcase ventilation gases. The apparatus is equipped with a control valve that divides the volumetric flow of the crankcase ventilation gases into at least two subflows, depending on the magnitude of the volumetric flow, and conducts the subflows to the at least two oil separators. A control piston releases or blocks access of the gases to additional cyclones depending on the dynamic pressure of the crankcase gas.Type: ApplicationFiled: December 2, 2005Publication date: June 1, 2006Applicant: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann, Thomas Schleiden, Andreas Beck, Andreas Weber
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Patent number: 7033410Abstract: A centrifugal separator for separating oil from a gas stream, particularly for venting the crankcase of an internal combustion engine, having a housing (2) in which the flow guiding means are arranged. The flow guiding means are connected to a drive shaft (3). A gas inlet (5) opens into the housing (2), and a gas outlet (6) and an oil outlet (7) lead out of the housing (2). An easily produced and functionally reliable arrangement is obtained if the housing (2) is non-rotatably mounted and an impeller (14) with blades (11) that produce a centrifugal flow is disposed in the housing (2) such that it is rotatable about the longitudinal axis (4) of the drive shaft (3).Type: GrantFiled: November 7, 2003Date of Patent: April 25, 2006Assignee: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann
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Publication number: 20050188937Abstract: A cylinder head cover, particularly for covering a cylinder head of an internal combustion engine, having a plurality of functional elements such as an oil filling connection and at least one oil separation device mounted thereon. The cylinder head cover is formed by a bottom shell and a top shell, with the functional elements each being formed from two segments. One segment is integrally arranged on the bottom shell, and the second segment is integrally arranged on the top shell. The two shells are interconnected by communicating sealing contours. Essential functional parts of the oil separation device are provided on the bottom shell and on the top shell. Preferably the functional elements include a cyclone which separates entrained oil from gases in the cylinder head cover and includes a cup arranged on the bottom shell and an immersion tube arranged on the top shell.Type: ApplicationFiled: January 31, 2005Publication date: September 1, 2005Applicant: Mann & Hummel GmbHInventors: Torsten Hilpert, Andreas Weber, Alexander Korn
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Publication number: 20040168415Abstract: A centrifugal separator (1) for separating impurities entrained in a gas stream (2), in which the centrifugal separator (1) includes at least one rotatable separating member and a turbine wheel (4) for driving the separating member (3).Type: ApplicationFiled: November 19, 2003Publication date: September 2, 2004Applicant: Mann & Hummel GmbHInventors: Torsten Hilpert, Heinz Buehl
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Publication number: 20040144698Abstract: A cyclone separator including an initial cyclone arrangement (1) arranged first in relation to a flow direction (18) through the separator; a second cyclone arrangement (2) connected in series with the initial cyclone arrangement; a bypass channel (3) bypassing the second cyclone arrangement (2), and a volumetric flow controlled valve device (4) for selectively directing a partial stream (5) through the bypass channel (3).Type: ApplicationFiled: November 7, 2003Publication date: July 29, 2004Applicant: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann
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Publication number: 20040144071Abstract: A centrifugal separator for separating oil from a gas stream, particularly for venting the crankcase of an internal combustion engine, having a housing (2) in which the flow guiding means are arranged. The flow guiding means are connected to a drive shaft (3). A gas inlet (5) opens into the housing (2), and a gas outlet (6) and an oil outlet (7) lead out of the housing (2). An easily produced and functionally reliable arrangement is obtained if the housing (2) is non-rotatably mounted and an impeller (14) with blades (11) that produce a centrifugal flow is disposed in the housing (2) such that it is rotatable about the longitudinal axis (4) of the drive shaft (3).Type: ApplicationFiled: November 7, 2003Publication date: July 29, 2004Applicant: Mann & Hummel GmbHInventors: Torsten Hilpert, Pius Trautmann
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Patent number: 6684865Abstract: A pressure control valve with a pressurized membrane (5) for closing and opening a gas passage (7) in which a valve chamber (8) pressurized with an ambient pressure (Pamb) is located on the side of membrane (5) that is opposite the gas passage (7) to be closed and opened. The pressure control valve (1) is arranged in such a way that the exit of the gas passage (7) leads directly into a volume with ambient pressure (Pamb). The membrane (5) includes a ventilation hole (9) through which the valve chamber (8) is directly pressurized with ambient pressure (Pamb).Type: GrantFiled: December 7, 2001Date of Patent: February 3, 2004Assignee: Filterwerk Mann & Hummel GmbHInventor: Torsten Hilpert
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Publication number: 20020083935Abstract: A pressure control valve with a pressurized membrane (5) for closing and opening a gas passage (7) in which a valve chamber (8) pressurized with an ambient pressure (Pamb) is located on the side of membrane (5) that is opposite the gas passage (7) to be closed and opened. The pressure control valve (1) is arranged in such a way that the exit of the gas passage (7) leads directly into a volume with ambient pressure (Pamb). The membrane (5) includes a ventilation hole (9) through which the valve chamber (8) is directly pressurized with ambient pressure (Pamb).Type: ApplicationFiled: December 7, 2001Publication date: July 4, 2002Inventor: Torsten Hilpert