Patents by Inventor Wolfgang Bueser
Wolfgang Bueser 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: 20220252030Abstract: A high-pressure fuel pump includes a pressure-limiting valve that opens from a high-pressure region of the high-pressure fuel pump towards a compression chamber or towards a low-pressure region of the high-pressure fuel pump. The pressure-limiting valve includes a valve body with a valve seat surface that tapers against the opening direction of the pressure-limiting valve, a spherical valve element, and a valve spring, which presses the spherical valve element against the opening direction of the pressure-limiting valve towards the valve seat surface. When the pressure-limiting valve is closed, the valve element and the valve seat surface bear against one another over a contact line, and a gap is formed between the valve element and valve body, next to the contact line. This gap is asymmetrically narrower upstream of the contact line than downstream of the contact line.Type: ApplicationFiled: July 6, 2020Publication date: August 11, 2022Inventors: Christoph Buehler, Wolfgang Bueser, Markus Goeke, Thomas Fritzsche, Rainer Kornhaas, Lorenz Drutu, Lars Gonnermann
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Patent number: 10359017Abstract: An electromagnetically actuable rate control valve for controlling a delivery rate of a high-pressure pump includes an electromagnet, a valve element, an armature shaft, and at least one strength element. The valve element is movable in an axial direction and is configured to open and to close the electromagnetically actuable rate control valve. The armature shaft transmits a force. The force is produced by the electromagnet and acts on the valve element in the axial direction. The at least one strength element is configured to raise at least the strength of the armature shaft. The armature shaft includes a needle region adjacent to the valve element and an armature region remote from the valve element. The needle region and the armature region are integral with each other.Type: GrantFiled: February 5, 2016Date of Patent: July 23, 2019Assignee: Robert Bosch GmbHInventors: Wolfgang Bueser, Juergen Haller, Heiko Roth, Ruthard Bonn
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Publication number: 20180045154Abstract: An electromagnetically actuable rate control valve for controlling a delivery rate of a high-pressure pump includes an electromagnet, a valve element, an armature shaft, and at least one strength element. The valve element is movable in an axial direction and is configured to open and to close the electromagnetically actuable rate control valve. The armature shaft transmits a force. The force is produced by the electromagnet and acts on the valve element in the axial direction. The at least one strength element is configured to raise at least the strength of the armature shaft. The armature shaft includes a needle region adjacent to the valve element and an armature region remote from the valve element. The needle region and the armature region are integral with each other.Type: ApplicationFiled: February 5, 2016Publication date: February 15, 2018Inventors: Wolfgang Bueser, Juergen Haller, Heiko Roth, Ruthard Bonn
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Publication number: 20040223856Abstract: A high-pressure fuel supply pump for an internal combustion engine includes a pump housing and an electromagnetic actuator mechanism that can adjust the fluid quantity supplied by the fuel supply pump. The actuator mechanism is integrated into the pump housing so that a magnetic circuit of the actuator mechanism is closed by at least a region of the pump housing.Type: ApplicationFiled: May 7, 2004Publication date: November 11, 2004Applicant: Robert Bosch GmbHInventors: Helmut Rembold, Wolfgang Bueser, Martin Benda, Bernd Schroeder
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Patent number: 6802301Abstract: The invention relates to a fuel supply system for an internal combustion engine, having a unit such as a pressure regulator, mounted in electrically insulated fashion and including an electrically conductive housing, and the housing is connected via an electrical connection to a defined electrical potential. As a result, static charging of the unit, which could become dangerous, is precluded. The fuel supply system is intended in particular for pumping fuel to an internal combustion engine of a motor vehicle.Type: GrantFiled: May 8, 2002Date of Patent: October 12, 2004Assignee: Robert Bosch GmbHInventors: Edwin Fauser, Stephan Kleppner, Kurt Frank, Hans-Peter Braun, Wolfgang Bueser, Klaus-Dieter Hufnagel, Willi Strohl, Jochen Rose, Wolfgang Hiller, Erich Eiler, Frantisek Buric, Jaroslav Moucka
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Patent number: 6729347Abstract: The invention relates to a device (10) for pressure regulation, having a housing (11) and a closing body (12) received axially movably therein, wherein the housing (11) has at least one pressure medium inlet (21) and one pressure medium outlet (22), and the closing body (12) is prestressed by a helical spring (14) against a valve seat (11′) in the housing, and at least one compensation means for the helical spring (14) is provided. The invention provides that as the compensation means, a compensation element (15) disposed between the closing body (12) and an end, oriented toward the closing body (12), of the helical spring (14) is provided, which is braced resiliently in the radial direction on the inner wall of the housing (11) and, with its central region (15′), is in preferably frictional-engagement contact with the closing body (12).Type: GrantFiled: May 13, 2002Date of Patent: May 4, 2004Assignee: Robert Bosch GmbHInventors: Ralph Ittlinger, Wolfgang Bueser, Lorenz Drutu
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Patent number: 6681798Abstract: The invention relates to a pressure regulator for a fuel injection system of an internal combustion engine, in which a pressure difference prevailing between a pressure inlet and a pressure outlet can be kept essentially constant by opening and closing at least one valve, which valve includes a valve closing member forced into the closing position against a valve seat by the action of a valve closing spring. The valve spring is formed by means of at least one pivotably supported valve leaf spring, and an arm, toward the valve seat in terms of the pivotable bearing means, of the valve leaf spring is braced on the valve closing member, and an arm of the valve leaf spring located on the side opposite the valve seat is braced on a support body, in such a way that a torque equilibrium prevails at the valve leaf spring.Type: GrantFiled: April 23, 2002Date of Patent: January 27, 2004Assignee: Robert Bosch GmbHInventors: Wolfgang Bueser, Dieter Schreckenberger, Tony Wheeler, Albert Gerhard
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Publication number: 20030196702Abstract: The invention relates to a pressure regulator for a fuel injection system of an internal combustion engine, in which a pressure difference prevailing between a pressure inlet and a pressure outlet can be kept essentially constant by opening and closing at least one valve, which valve includes a valve closing member forced into the closing position against a valve seat by the action of a valve closing spring. The valve spring is formed by means of at least one pivotably supported valve leaf spring, and an arm, toward the valve seat in terms of the pivotable bearing means, of the valve leaf spring is braced on the valve closing member, and an arm of the valve leaf spring located on the side opposite the valve seat is braced on a support body, in such a way that a torque equilibrium prevails at the valve leaf spring.Type: ApplicationFiled: April 23, 2002Publication date: October 23, 2003Applicant: Robert Bosch GmbHInventors: Wolfgang Bueser, Dieter Schreckenberger, Tony Wheeler, Albert Gerhard
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Publication number: 20020148508Abstract: The invention relates to a device (10) for pressure regulation, having a housing (11) and a closing body (12) received axially movably therein, wherein the housing (11) has at least one pressure medium inlet (21) and one pressure medium outlet (22), and the closing body (12) is prestressed by a helical spring (14) against a valve seat (11′) in the housing, and at least one compensation means for the helical spring (14) is provided. The invention provides that as the compensation means, a compensation element (15) disposed between the closing body (12) and an end, oriented toward the closing body (12), of the helical spring (14) is provided, which is braced resiliently in the radial direction on the inner wall of the housing (11) and, with its central region (15′), is in preferably frictional-engagement contact with the closing body (12).Type: ApplicationFiled: May 13, 2002Publication date: October 17, 2002Inventors: Ralph Ittlinger, Wolfgang Bueser, Lorenz Drutu
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Publication number: 20020124833Abstract: The invention relates to a fuel supply system for an internal combustion engine, having a unit such as a pressure regulator, mounted in electrically insulated fashion and including an electrically conductive housing, and the housing is connected via an electrical connection to a defined electrical potential. As a result, static charging of the unit, which could become dangerous, is precluded. The fuel supply system is intended in particular for pumping fuel to an internal combustion engine of a motor vehicle.Type: ApplicationFiled: May 8, 2002Publication date: September 12, 2002Inventors: Edwin Fauser, Stephan Kleppner, Kurt Frank, Hans-Peter Braun, Wolfgang Bueser, Klaus-Dieter Hufnagel, Willi Strohl, Jochen Rose, Wolfgang Hiller, Erich Eiler, Frantisek Buric, Jaroslav Moucka
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Patent number: 6443131Abstract: The invention relates to a flat pipe pressure damper for damping fluid pressure pulsations in fluid lines, in particular fuel pressure pulsations in fuel supply lines of motor vehicles, having at least one chamber, of which at least a part of the chamber wall, in operative connection with the fluid, can be elastically deformed by the fluid pressure pulsations. The invention makes the provision that a part of the chamber is filled with a fluid.Type: GrantFiled: August 25, 2000Date of Patent: September 3, 2002Assignee: Robert Bosch GmbHInventor: Wolfgang Bueser
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Patent number: 6439263Abstract: The pressure regulating valve (2) proposed here can be designed with the aid of the outflow throttle restriction (28) downstream of the valve seat (22) in such a way that the pressure regulating valve (2), as the fluid flow becomes greater, sets or adjusts a smaller pressure difference at the pressure regulating valve (2), as a result of which the line losses that can never be avoided can be compensated for. The pressure regulating valve is suitable in particular for a fuel supply system of a motor vehicle having an internal combustion engine.Type: GrantFiled: December 22, 2000Date of Patent: August 27, 2002Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Ralph Ittlinger, Wolfgang Bueser, Martin Maier, Lorenz Drutu
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Patent number: 6435163Abstract: The invention relates to a fuel supply system for an internal combustion engine, having a unit, such as a pressure regulator, mounted in electrically insulated fashion and including an electrically conductive housing, and the housing is connected via an electrical connection to a defined electrical potential. As a result, static charging of the unit, which could become dangerous, is precluded. The fuel supply system is intended in particular for pumping fuel to an internal combustion engine of a motor vehicle.Type: GrantFiled: March 1, 2000Date of Patent: August 20, 2002Assignee: Robert Bosch GmbHInventors: Edwin Fauser, Stephan Kleppner, Kurt Frank, Hans-Peter Braun, Wolfgang Bueser, Klaus-Dieter Hufnagel, Willi Strohl, Jochen Rose, Wolfgang Hiller, Erich Eiler, Frantisek Buric, Jaroslav Moucka
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Publication number: 20010022192Abstract: In the pressure regulating valve (2) proposed here, a hydraulic damping device (40) with a damper chamber (32) through which a fluid flow passes assures effective damping of the oscillations of the closing body (20). The pressure regulating valve is suited in particular for a fuel supply system of a motor vehicle having an internal combustion engine.Type: ApplicationFiled: December 21, 2000Publication date: September 20, 2001Applicant: Robert Bosch GmbHInventors: Helmut Schwegler, Ralph Ittlinger, Wolfgang Bueser, Martin Maier, Lorenz Drutu
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Publication number: 20010022193Abstract: The pressure regulating valve (2) proposed here can be designed with the aid of the outflow throttle restriction (28) downstream of the valve seat (22) in such a way that the pressure regulating valve (2), as the fluid flow becomes greater, sets or adjusts a smaller pressure difference at the pressure regulating valve (2), as a result of which the line losses that can never be avoided can be compensated for. The pressure regulating valve is suitable in particular for a fuel supply system of a motor vehicle having an internal combustion engine.Type: ApplicationFiled: December 22, 2000Publication date: September 20, 2001Applicant: Robert Bosch GmbHInventors: Helmut Schwegler, Ralph Ittlinger, Wolfgang Bueser, Martin Maier, Lorenz Drutu
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Patent number: 6247486Abstract: A liquid filter (10) with a built-in pressure regulator (11) for fuel is proposed, wherein the pressure regulator (11) with its diaphragm (41) is built on the housing (12) on a component (18) on the front with at least one connection (19). The disk-shaped diaphragm (41) has a single clamping site (39) on its external circumference and a centrally arranged movable closure closure member (42). The diaphragm (41) is acted upon by pressure in a pressure chamber (45) connected with the clean side against the force of a spring (49) in a gas-filled spring chamber (48). The integration of the pressure regulator (11) in the housing (12) permits a simple, compact, cost-effective construction of the liquid filter (10), through whose valve (44) in the pressure regulator (11) only cleaned fuel flows and which is insensitive to backpressure in the tank connection (17).Type: GrantFiled: May 16, 1997Date of Patent: June 19, 2001Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Bernhard Lucas, Wolfgang Bueser, Ulrich Projahn
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Patent number: 6213143Abstract: A liquid filter (1) with a built-in pressure regulator (11) for fuel is proposed, in which the pressure regulator (11) with its diaphragm (32) is mounted on the inside of a cap (14) that has the inflow connector (16) and the tank connector (17). The diaphragm (32), which experiences a flow on its inside, is acted upon by the pressure of the fuel on the clean side (25) of the filter element (21), and the flow through the filter element is radially from the outside inward. Integrating the pressure regulator (11) in the cap enables a simple, compact, economical design of the liquid filter (10), through whose valve (36) in the pressure regulator (11) only cleaned fuel flows.Type: GrantFiled: October 28, 1996Date of Patent: April 10, 2001Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Uwe Liskow, Lorenz Drutu, Ulrich Projahn, Bernhard Lucas, Wolfgang Bueser
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Patent number: 6209527Abstract: A pressure regulating valve has a valve chamber having an inlet for connecting to a pressure source, a discharge chamber communicating through a valve opening with the valve chamber, a valve member, a valve seat surrounding the valve opening, a valve closing spring which presses the valve member against the valve seat with an adjustable spring force, and a throttling surface arranged downstream of the valve opening so that between the valve member and an inner wall of the discharge chamber, a pressure is formed at the valve member which counteracts the spring force.Type: GrantFiled: August 29, 1997Date of Patent: April 3, 2001Assignee: Robert Bosch GmbHInventors: Wolfgang Bueser, Michael Niederkofler, Willi Strohl, Jochen Rose, Erich Eiler
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Patent number: 6029694Abstract: This pressure regulator prevents unpleasant vibration of the closing body. In the pressure regulator, a friction spring that is simple to mount is provided, by means of which the vibration of the closing body can be suppressed or reduced. The pressure regulator is intended in particular for fuel supply systems of motor vehicles that have an internal combustion engine.Type: GrantFiled: December 1, 1997Date of Patent: February 29, 2000Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Roland Hoepfl, Wolfgang Bueser, Uwe Talmon, Lorenz Drutu
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Patent number: 6016831Abstract: The invention relates to a pressure regulator for a fuel system. The pressure regulator includes a housing assembled out of at least two housing parts. A membrane unit is securely installed in a sealed fashion between the housing parts. The securing region that securely holds the two housing parts and the membrane unit in a sealed fashion has an elastic region so that the desired secure connection is assured by simply snapping the two housing parts together. The device is provided in particular for regulating a pressure in a fuel system.Type: GrantFiled: March 31, 1999Date of Patent: January 25, 2000Assignee: Robert Bosch GmbHInventors: Wolfgang Bueser, Dietmar Schmieder, Willi Strohl, Dieter Issler, Jochen Rose, Alexander Brand, Rudolf Meidinger, Erich Eiler, Frantisek Buric, Jaroslay Moucka