Patents by Inventor Erwin Krimmer
Erwin Krimmer 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: 7422194Abstract: A solenoid valve, such as, for example, a tank-vent valve f or tank venting in motor vehicles, includes at least one valve orifice forming a sealing seat, and a valve member, which cooperates with the sealing seat for releasing and closing it, the valve member being stressed by at least one spring element and activated by an electromagnet. An essentially unstressed neutral position of at least one additional spring element, which acts upon the valve member in the activation direction, is provided in which the valve member is set apart from the sealing seat. In this manner, the impact of the valve member on the sealing seat, which may be accompanied by distracting noises and wear, is damped.Type: GrantFiled: June 28, 2002Date of Patent: September 9, 2008Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Publication number: 20070023724Abstract: An electropneumatic pressure converter including a magnet valve which has a magnet coil and a magnet core received in a housing as is a regulator unit. By means of the electropneumatic pressure converter, variable underpressures pVAR of consumers can be regulated. The regulator unit has components joined together by material engagement, forming sealing points.Type: ApplicationFiled: March 17, 2004Publication date: February 1, 2007Inventors: Harald Laue, Erwin Krimmer
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Patent number: 6919786Abstract: An actuator (1) has two parts in the iron circuit and has a simple construction. A short-circuit element (3) has an offset (90), which depending on the position of an armature (9) varies the course (60) of magnetic flux in such a way that over the entire stroke, a constant, high magnetic force is achieved, and thus a shallow course of magnetic force in stroke is attained.Type: GrantFiled: February 28, 2002Date of Patent: July 19, 2005Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Christian Lorenz, Matthias Brendle
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Patent number: 6901942Abstract: The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part, which includes an insert border, is molded into a housing. At the same time as the stamped insert part is molded into the housing, the flap shaft affixed to the stamped insert part is molded-in inside the fastening region. A planar region of the stamped insert part connected to the flap shaft is cut out from this stamped insert part.Type: GrantFiled: June 11, 2003Date of Patent: June 7, 2005Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Peter Baur, Christian Lorenz, Bruno Hezel, Hubert Hickl
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Patent number: 6889708Abstract: A valve (1) has a filter (18) integrated in the housing (3, 5), The filter is located in the vicinity of an intake-valve opening (9), by way of which a smaller physical size and a larger opening cross-section for an influent regeneration gas to the convergent-divergent nozzle results.Type: GrantFiled: March 15, 2002Date of Patent: May 10, 2005Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Patent number: 6885189Abstract: A measuring instrument for contactless detection of an angle of rotation comprises a carrier plate (52) consisting of a magnetically soft material that serves as a rotor. The stator of the sensor comprises at least two parts, the ends (18 and 17) of which terminate in two planes. The measuring gap (M1) containing an element (20) that is sensitive to a magnetic field is located between the ends (18, 17). Due to the fact that the ends (17, 18) of the two stator parts (13, 14) terminate in different planes, the measuring element (20) can be situated in a very small measuring gap (M1) in which the magnetic flux of the magnet (5) can be concentrated.Type: GrantFiled: April 13, 2000Date of Patent: April 26, 2005Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Asta Reichl, Thomas Klotzbuecher, Bernhard Bauer
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Publication number: 20040113113Abstract: The present invention relates to a solenoid valve, in particular a tank-vent valve for tank venting in motor vehicles having at least one valve orifice forming a sealing seat, and a valve member, which cooperates with the sealing seat for releasing and closing it, the valve member being stressed by at least one spring element and activated by an electromagnet.Type: ApplicationFiled: January 21, 2004Publication date: June 17, 2004Inventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Patent number: 6739361Abstract: A method and an apparatus operate a tank system including a tank system of a motor vehicle. The tank system includes a tank for receiving a fluid medium forming a volatile substance and an adsorption filter connected to the tank for receiving the volatile substance which emanates from the tank. A shutoff valve is connected to the adsorption filter and is drivable between an open position and a closed position whereat the tank system is closed off to the ambient. A tank fill-level sensor detects the fill level of the fluid medium in the tank. A fill pipe is connected to the tank for filling with the fluid medium. The fill level is detected while tanking and the shutoff valve is driven into the closed position when the fill level has reached a maximum fill level.Type: GrantFiled: August 12, 2002Date of Patent: May 25, 2004Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Helmut Schwegler, Georg Mallebrein, Rainer Hahner
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Publication number: 20040031945Abstract: The invention relates to a method for producing a throttle valve unit for installation into a flow conduit through which a gas flow passes. A flap shaft of the throttle valve unit is affixed to a stamped insert part inside a fastening region. The stamped insert part, which includes an insert border, is molded into a housing. At the same time as the stamped insert part is molded into the housing, the flap shaft affixed to the stamped insert part is molded-in inside the fastening region. A planar region of the stamped insert part connected to the flap shaft is cut out from this stamped insert part.Type: ApplicationFiled: June 11, 2003Publication date: February 19, 2004Applicant: Robert Bosch GmbHInventors: Erwin Krimmer, Peter Baur, Christian Lorenz, Bruno Hezel, Hubert Hickl
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Device for metered admixing of volatized fuel in an intake manifold of an internal combustion engine
Publication number: 20040025851Abstract: With metered admixing of volatized fuel in an intake manifold of an internal combustion engine with a supercharger, the problem exists that depending on the respective operating state, different pressures prevail in the intake manifold. This problem is resolved in known devices, in that return valves are subsequently added and structurally separated from the tank aeration valve in the flow direction. The present invention proposes that the return valves (39, 40) are structurally integrated in a tank aeration valve (5), in order to reduce the assembly expense and the spatial requirements.Type: ApplicationFiled: May 22, 2003Publication date: February 12, 2004Inventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek -
Patent number: 6659427Abstract: In a flap valve for controlling a gas flow, with a valve tube (11) that carries the gas flow and with a valve flap (14) that is pivotable in the valve tube (11) and that in its closing position rests sealingly with its outer contour on the inner wall of a flexible thin-walled tube (20) disposed coaxially in the valve tube (11), and with a valve shaft (15) connected to the valve flap (14) in a manner fixed against relative rotation, it is provided, in order to attain a sensitive adjustment of the valve flap (14) and for the sake of technologically simple, inexpensive production of the flap valve (14), that the valve shaft (15) is positioned at an acute angle (&ggr;) relative to the valve plane, and the thin-walled tube (20) is formed directly and integrally onto the valve tube (11) (FIG. 2).Type: GrantFiled: December 9, 2002Date of Patent: December 9, 2003Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Ralph Krause, Peter Baur, Christian Lorenz, Klaus Kaiser
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Patent number: 6651951Abstract: A magnet valve according to the related art has a sealing and damping device with an elastic region on which, during operation, a force acts due to different existing pressures that must also be overcome when the armature plate is moved. A magnet valve (1) designed according to the invention has a sealing and damping device (46) with an elastic region (105) that is oriented and designed in relation to a seal seat (103) in such a fashion that the above-described force is offset. As a result, a better characteristic curve of the magnet valve (1) over the existing differential pressure is obtained.Type: GrantFiled: November 7, 2002Date of Patent: November 25, 2003Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Publication number: 20030172974Abstract: A valve according to the related art has a filter that has a small physical size.Type: ApplicationFiled: November 7, 2002Publication date: September 18, 2003Inventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Publication number: 20030155839Abstract: An actuator of the prior art has an iron circuit comprising three parts. Moreover, an armature stroke with a magnetic force that remains constant over wide strokes can be achieved only at very great effort and expense.Type: ApplicationFiled: March 18, 2003Publication date: August 21, 2003Inventors: Erwin Krimmer, Wolfgang Schulz, Christian Lorenz, Matthias Brendle
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Patent number: 6604516Abstract: In a flap valve for controlling a gas stream, having a valve tube that carries the gas stream and having a valve flap, disposed in the valve tube, that is pivotable between a closing position and an open position and is seated in a manner fixed against relative rotation on an adjustable flap shaft, to avoid openings of the shaft in the valve tube inside the sealing region between the valve flap and the valve tube, the flap shaft is oriented such that its axis forms an acute angle (&agr;) with the axis of the valve tube. The valve flap seated on the flap shaft in a manner fixed against relative rotation is oriented such that in its closing position, its surface normal is aligned with the axis of the valve tube or extends at an acute angle to it.Type: GrantFiled: May 11, 2001Date of Patent: August 12, 2003Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Ralph Krause
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Publication number: 20030146403Abstract: In a flap valve for controlling a gas flow, with a valve tube (11) that carries the gas flow and with a valve flap (14) that is pivotable in the valve tube (11) and that in its closing position rests sealingly with its outer contour on the inner wall of a flexible thin-walled tube (20) disposed coaxially in the valve tube (11), and with a valve shaft (15) connected to the valve flap (14) in a manner fixed against relative rotation, it is provided, in order to attain a sensitive adjustment of the valve flap (14) and for the sake of technologically simple, inexpensive production of the flap valve (14), that the valve shaft (15) is positioned at an acute angle (&ggr;) relative to the valve plane, and the thin-walled tube (20) is formed directly and integrally onto the valve tube (11).Type: ApplicationFiled: December 9, 2002Publication date: August 7, 2003Inventors: Erwin Krimmer, Ralph Krause, Peter Baur, Christian Lorenz, Klaus Kaiser
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Patent number: 6578818Abstract: The current invention relates to a valve device (1), in particular for tank ventilation in motor vehicles, having a valve housing (6, 7, 8) with an inlet fitting (10) and an outlet fitting (11), having an armature (26) that is provided inside the valve housing (6, 7, 8) and can be moved by means of an electromagnet (22), having a closing body (40) that is connected to the armature (26) and closes a sealing seat (13) of the outlet fitting (11) when the electromagnet (22) is without power and opens it when the electromagnet (22) is supplied with power wherein the free cross sectional area between the inlet fitting (10) and the outlet fitting (11) can be continuously changed, and having a spring element (50) which presses the closing body (40) with a slight pressure against the sealing seat (13).Type: GrantFiled: April 10, 2000Date of Patent: June 17, 2003Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Tilman Miehle
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Publication number: 20030102446Abstract: A magnet valve according to the related art has a sealing and damping device with an elastic region on which, during operation, a force acts due to different existing pressures that must also be overcome when the armature plate is moved.Type: ApplicationFiled: November 7, 2002Publication date: June 5, 2003Inventors: Erwin Krimmer, Wolfgang Schulz, Achim Meisiek
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Publication number: 20030047232Abstract: A method and an apparatus operate a tank system including a tank system of a motor vehicle. The tank system includes a tank for receiving a fluid medium forming a volatile substance and an adsorption filter connected to the tank for receiving the volatile substance which emanates from the tank. A shutoff valve is connected to the adsorption filter and is electrically drivable between an open position and a closed position whereat the tank system is closed off pressure tight with respect to the ambient. A tank fill-level sensor detects the fill level of the fluid medium in the tank and transmits a signal indicative of the fill level of the fluid medium. A fill pipe is connected to the tank for filling the tank with the fluid medium. The fill level is detected while tanking the tank and the shutoff valve is driven into the closed position when the fill level has reached a maximum fill level. The shutoff valve can also be driven to close by applying a clocked drive signal thereto.Type: ApplicationFiled: August 12, 2002Publication date: March 13, 2003Inventors: Erwin Krimmer, Wolfgang Schulz, Helmut Schwegler, Georg Mallebrein, Rainer Hahner
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Patent number: 6516786Abstract: A control unit (50) makes a single control signal available for driving the through-flow control valves (TEV1, TEV2) (51, 52). Through-flow valve (TEV2) has a larger maximum through flow than through-flow control valve (TEV1). A delay circuit is indicated by the phantom outline (52′) and is mounted at the valve stage TEV2 (52). The delay circuit includes an electric delay element (53) with the aid of which the original control signal is delayed in time by an amount &Dgr;t1 relative to the control signal of control valve (TEV1). The resulting delayed signal is supplied to an AND-gate (54) together with the original control signal. Accordingly, a control signal is present at the output of the AND-gate for the control valve (TEV2). The time delay makes possible the exclusive activation of the through-flow control valve (TEV1) (51) at low pulse duty factors. In this way, a high small quantity meterability is achieved.Type: GrantFiled: April 12, 2001Date of Patent: February 11, 2003Assignee: Robert Bosch GmbHInventors: Erwin Krimmer, Wolfgang Schulz, Helmut Schwegler, Georg Mallebrein