Patents by Inventor Helmut Neuschwander
Helmut Neuschwander 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: 10895227Abstract: An assembly for receiving a fluid subjected to fluctuating pressure has a housing with at least two housing parts. A tensioning bolt connects the at least two housing parts to each other. The tensioning bolt has at least two spaced-apart threaded sections, wherein the at least two threaded sections each are screwed into a respective counter thread in the at least two housing parts. The assembly can be a suction pipe or an air filter device of an internal combustion engine.Type: GrantFiled: July 11, 2019Date of Patent: January 19, 2021Assignee: MANN+HUMMEL GmbHInventors: Hans-Peter Hielscher, Helmut Neuschwander, Alexander Korn
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Publication number: 20200018271Abstract: An assembly for receiving a fluid subjected to fluctuating pressure has a housing with at least two housing parts. A tensioning bolt connects the at least two housing parts to each other. The tensioning bolt has at least two spaced-apart threaded sections, wherein the at least two threaded sections each are screwed into a respective counter thread in the at least two housing parts. The assembly can be a suction pipe or an air filter device of an internal combustion engine.Type: ApplicationFiled: July 11, 2019Publication date: January 16, 2020Inventors: Hans-Peter Hielscher, Helmut Neuschwander, Alexander Korn
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Publication number: 20190316547Abstract: A water distributor for water to be injected into a combustion chamber of an internal combustion engine is provided with a housing that has a receiving chamber, wherein the receiving chamber extends in a longitudinal direction of the housing. An insertion element with an insertion section is provided and the insertion section is inserted into the receiving chamber and extends in the longitudinal direction in correspondence to the receiving chamber. A water inlet and at least one water outlet are provided. A distributor channel connects the water inlet in fluid communication to the at least one water outlet. The distributor channel is delimited at least partially by the insertion element. The housing and the insertion element are connected water-tightly to each other at an end face of the housing. The housing and the insertion element are made a plastic material.Type: ApplicationFiled: April 15, 2019Publication date: October 17, 2019Inventors: Alexander Korn, Helmut Neuschwander
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Publication number: 20160326998Abstract: The invention relates to apparatus (1) for a charging system of an internal combustion engine (31), comprising a housing (2) in which a secondary line (6) of an additional compressor (33) opens at an opening (54) into an air duct (5) of the internal combustion engine (31), a closing device (8) in the housing (2) for closing the air duct (5) upstream of the outlet (54), wherein the closing device (8) is arranged pivotably about a geometric axis of rotation (14), and at least one spring (21) arranged in the housing (2), wherein the spring (21) biases the closing device (8) in the closing direction, and wherein the closing device (8) is moved exclusively by the spring force of the spring (21) and the pressure condition upstream (55) and downstream (56) of the closing device (8).Type: ApplicationFiled: May 4, 2016Publication date: November 10, 2016Inventors: Dietmar METZ, Stefan JACOB, Hedwig SCHICK, Herbert PIETROWSKI, Helmut NEUSCHWANDER
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Publication number: 20050120991Abstract: An air intake system for an internal combustion engine having an air collector into which combustion air is introduced and having at least one intake manifold which branches off from the air collector and which can be connected to the internal combustion engine, in which the intake system additionally includes at least one pressure accumulator which is connected in one piece to the intake system.Type: ApplicationFiled: September 30, 2004Publication date: June 9, 2005Applicant: Mann & Hummel GmbHInventors: Helmut Neuschwander, Eckehart Mandel, Christoph Schuster
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Patent number: 6889649Abstract: 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: GrantFiled: March 3, 2003Date of Patent: May 10, 2005Assignee: Mann & Hummel GmbHInventors: Arthur Klotz, Helmut Neuschwander
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Patent number: 6837261Abstract: A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.Type: GrantFiled: June 26, 2003Date of Patent: January 4, 2005Assignee: Filterwerk Mann & Hummel GmbHInventors: Klaus Rentschler, Helmut Neuschwander
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Patent number: 6732695Abstract: An intake manifold (10) for a multi-cylinder internal combustion engine includes a tubular intake distributor (12) from which a plurality of long intake tubes (13) extend and lead to the individual cylinders. Short intake tubes (14) likewise extend from the intake distributor and open into the respective associated long intake tubes (13). The intake distributor (12) and the long and short intake tubes (13, 14) are formed from a one-piece housing (11) which has a cavity (21) which intersects the short intake tubes (14). In this cavity (21) a control element (15) is installed, which includes flaps (16), flap frames (17), a shaft (19) and a control element frame (18). By moving the shaft (19) either rotationally or translationally, the short intake tubes (14) can be opened or closed. In contrast to arrangements known in the prior art, the control element (15) has no sealing elements which can catch or jam during assembly.Type: GrantFiled: February 4, 2002Date of Patent: May 11, 2004Assignee: Filterwerk Mann & Hummel GmbHInventors: Herbert Pietrowski, Thomas Jessberger, Ingo Koch, Helmut Neuschwander, Eckehard Mandel
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Patent number: 6692675Abstract: A method for producing a control valve assembly using a mold comprising an upper mold half (20) and a lower mold half (21). A shaft (11) with premounted bearing blocks (13) or other functional components is placed in the mold, and the control valves subsequently are injection-molded on the shaft (11) in cavities (22) via feeders (23) to produce the control valve assembly. Afterward, the bearing blocks (13) can no longer be detached. Because they are produced separately, the bearing blocks can have a complex geometry. This allows a considerable degree of freedom in the geometric design of the control valve assembly while nevertheless ensuring cost-effective production.Type: GrantFiled: June 25, 2002Date of Patent: February 17, 2004Assignee: Filterwerk Mann & Hummel GmbHInventors: Joachim Schraudolf, Klaus Rentschler, Helmut Neuschwander
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Publication number: 20040003841Abstract: A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.Type: ApplicationFiled: June 26, 2003Publication date: January 8, 2004Applicant: Filterwerk Mann & Hummel GmbHInventors: Klaus Rentschler, Helmut Neuschwander
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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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Patent number: 6648939Abstract: An inertial separator (10) for removing droplets from a gas stream. The inertial separator (10) has a housing (18) which is provided with an inlet (11) for untreated gas and an outlet (12) for treated gas. In the housing (18) are first and second separation lamellae (13), with at least two first separation lamellae (13) being linearly arranged next to one another and separated by an interval A. The separation lamellae (13) each have a concave side (14) and a convex side (15). The first separation lamellae (13) are arranged parallel to the second separation lamellae (13) with the concave sides (14) of the separation lamellae (13) facing one another. The lowest region of the concave side (14) of the first separation lamellae (13) is situated opposite the interval A between the second separation lamellae (13). Viewed in the direction of flow, a drainage slope (16) which extends obliquely to the separation lamellae (13) is arranged on the second separation lamellae (13).Type: GrantFiled: May 24, 2002Date of Patent: November 18, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Helmut Neuschwander, Pius Trautmann
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Patent number: 6612325Abstract: A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control valves are formed by blades (15) in frames (16) produced by an assembly injection molding process. The control valve blades (15) can be molded onto the force-transmitting shaft (32). The resulting assembly can be mounted or installed as a unit. Alternatively, instead of using a single continuous shaft, shaft projections can be injection molded on the valve blades, which terminate in lugs which engage in a rotationally secure manner in sockets in an adjacent valve assembly so that the two assemblies rotate together as a unit. The resulting control valve assembly is easy to install and advantageously takes up only a little space.Type: GrantFiled: October 24, 2001Date of Patent: September 2, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Klaus Rentschler, Helmut Neuschwander
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Patent number: 6517334Abstract: A molding tool for producing several assembly injection molded components, especially assembly injection molded switching dampers, which are combined into a subassembly by inserting an insertion part, and a method for producing such a subassembly from several components using the molding tool of the invention. The insertion part is encapsulated at least partially by one or more of the components to be injection molded, as a result of which a completely assembled subassembly is produced in the original molding process. This can be, for example, a switching damper assembly 18, which results from a common actuating shaft 17. In this way, assembly injection molded components 14, 15 with a complicated structure can be produced, for which a molding tool with only a single molding cavity would not be usable. The individual components 13 are produced in different mold cavities, which preferably are mounted rotatably on a carousel.Type: GrantFiled: April 24, 2000Date of Patent: February 11, 2003Assignee: Filterwerk Mann & Hummel GmbHInventor: Helmut Neuschwander
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Patent number: 6513508Abstract: A fluid feed duct, which may be used for feeding a stream of recirculated exhaust gas into a stream of intake air for an internal combustion engine. The feed duct includes a hollow structure (10) into which a feed connection (12) is introduced via a joint structure (34). A ceramic pipe (16) is used to prevent heat from the exhaust gas stream from being conducted to mounts in the hollow structure (10) which represents the intake duct of the engine. Consequently, the intake duct can be manufactured of a thermoplastic synthetic resin material, since the risk of thermal overstressing is avoided. The feed connection also has a deflecting segment (19) which is provided in its sides with outlet openings (20). This enables the exhaust gas to be introduced in the direction of flow of the intake air, so that optimal mixing is assured and the hot exhaust gas stream is prevented from passing directly to the wall of the thermoplastic intake duct, thereby preventing the intake duct from being melted.Type: GrantFiled: January 15, 2002Date of Patent: February 4, 2003Assignee: Filterwerk Mann & Hummel GmbHInventors: Jochem Fischer, Helmut Neuschwander
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Publication number: 20030009881Abstract: A method for producing a control valve assembly using a mold comprising an upper mold half (20) and a lower mold half (21). A shaft (11) with premounted bearing blocks (13) or other functional components is placed in the mold, and the control valves subsequently are injection-molded on the shaft (11) in cavities (22) via feeders (23) to produce the control valve assembly. Afterward, the bearing blocks (13) can no longer be detached. Because they are produced separately, the bearing blocks can have a complex geometry. This allows a considerable degree of freedom in the geometric design of the control valve assembly while nevertheless ensuring cost-effective production.Type: ApplicationFiled: June 25, 2002Publication date: January 16, 2003Applicant: Filterwerk Mann & Hummel GmbHInventors: Joachim Schraudolf, Klaus Rentschler, Helmut Neuschwander
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Publication number: 20020189213Abstract: An inertial separator (10) for removing droplets from a gas stream. The inertial separator (10) has a housing (18) which is provided with an inlet (11) for untreated gas and an outlet (12) for treated gas. In the housing (18) are first and second separation lamellae (13), with at least two first separation lamellae (13) being linearly arranged next to one another and separated by an interval A. The separation lamellae (13) each have a concave side (14) and a convex side (15). The first separation lamellae (13) are arranged parallel to the second separation lamellae (13) with the concave sides (14) of the separation lamellae (13) facing one another. The lowest region of the concave side (14) of the first separation lamellae (13) is situated opposite the interval A between the second separation lamellae (13). Viewed in the direction of flow, a drainage slope (16) which extends obliquely to the separation lamellae (13) is arranged on the second separation lamellae (13).Type: ApplicationFiled: May 24, 2002Publication date: December 19, 2002Inventors: Helmut Neuschwander, Pius Trautmann
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Publication number: 20020152982Abstract: An intake manifold (10) for a multi-cylinder internal combustion engine includes a tubular intake distributor (12) from which a plurality of long intake tubes (13) extend and lead to the individual cylinders. Short intake tubes (14) likewise extend from the intake distributor and open into the respective associated long intake tubes (13). The intake distributor (12) and the long and short intake tubes (13, 14) are formed from a one-piece housing (11) which has a cavity (21) which intersects the short intake tubes (14). In this cavity (21) a control element (15) is installed, which includes flaps (16), flap frames (17), a shaft (19) and a control element frame (18). By moving the shaft (19) either rotationally or translationally, the short intake tubes (14) can be opened or closed. In contrast to arrangements known in the prior art, the control element (15) has no sealing elements which can catch or jam during assembly.Type: ApplicationFiled: February 4, 2002Publication date: October 24, 2002Inventors: Herbert Pietrowski, Thomas Jessberger, Ingo Koch, Helmut Neuschwander, Eckehard Mandel
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Patent number: 6450140Abstract: A drum controller for use in the induction system of a multi-cylinder internal combustion engine includes an induction distributor and individual induction pipes arranged next to each other and ending in a flange. The controller is arranged in a longitudinal bore hole of the individual induction pipes and is used to pen and close said tubes. The drum controller includes a moveable sleeve and a fixed core. The individual induction pipes are opened or closed when the sleeve is rotated.Type: GrantFiled: August 22, 2000Date of Patent: September 17, 2002Assignee: Filterwerk Mann & Hummel GmbHInventors: Thomas Jessberger, Helmut Neuschwander, Klaus Rentschler
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Publication number: 20020112708Abstract: A fluid feed duct, which may be used for feeding a stream of recirculated exhaust gas into a stream of intake air for an internal combustion engine. The feed duct includes a hollow structure (10) into which a feed connection (12) is introduced via a joint structure (34). A ceramic pipe (16) is used to prevent heat from the exhaust gas stream from being conducted to mounts in the hollow structure (10) which represents the intake duct of the engine. Consequently, the intake duct can be manufactured of a thermoplastic synthetic resin material, since the risk of thermal overstressing is avoided. The feed connection also has a deflecting segment (19) which is provided in its sides with outlet openings (20). This enables the exhaust gas to be introduced in the direction of flow of the intake air, so that optimal mixing is assured and the hot exhaust gas stream is prevented from passing directly to the wall of the thermoplastic intake duct, thereby preventing the intake duct from being melted.Type: ApplicationFiled: January 15, 2002Publication date: August 22, 2002Inventors: Jochem Fischer, Helmut Neuschwander