Patents by Inventor Helmut Schwegler
Helmut Schwegler 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).
-
Publication number: 20090184184Abstract: A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, having an inflow nipple for the connection to a fuel-distributor line, a nozzle body disposed downstream from the inflow nipple, a magnetic circuit element, which includes a solenoid coil an inner pole, and an outer pole, as well as an armature, which is in force-locking connection with a valve needle such that a valve-closure element disposed at the valve needle lifts off from a valve-seat surface when solenoid coil is energized, the inflow nipple and the nozzle body being produced as deep-drawn components, and the inflow nipple and the nozzle body being fixed in place on the magnetic circuit element.Type: ApplicationFiled: March 7, 2006Publication date: July 23, 2009Inventors: Helmut Schwegler, Ferdinand Reiter, Franz Thoemmes
-
Patent number: 7188789Abstract: An atomizer nozzle (1) for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body (2) containing spray-discharge orifices (3) that discharge into a metering space, and has at least one metering aperture (6). The spray-discharge orifices (3) are situated at elevation levels (4) so as to have a radial directional component with respect to a center line (10) of the nozzle body (2), each elevation step having at least one spray-discharge orifice (3), and the spray-discharge orifices (3) of at least one elevation level (4) being connected to at least one channel (14) of a nozzle-body insert (5) that has at least one flow-through opening (11).Type: GrantFiled: July 3, 2003Date of Patent: March 13, 2007Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
Publication number: 20060144966Abstract: An atomizer nozzle for fuels, particularly for charging a chemical reformer for obtaining hydrogen, features a nozzle body, having spray-discharge orifices discharging into a metering space, and at least one metering aperture, The spray-discharge orifices are situated with a radial directional component with respect to a center axis of the nozzle body at elevation levels, each elevation level having at least one spray-discharge orifice. At least one nozzle body insert, having at least one flow-through opening, is situated in the nozzle body in front of the first elevation step in the direction of fuel flow and/or between the elevation steps.Type: ApplicationFiled: August 12, 2003Publication date: July 6, 2006Inventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
Publication number: 20050258281Abstract: An atomizer nozzle for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body containing spray-discharge orifices that discharge into a metering space, and has at least one metering aperture. The spray-discharge orifices are situated at elevation levels so as to have a radial directional component with respect to a center line of the nozzle body, each elevation step having at least one spray-discharge orifice, and the spray-discharge orifices of at least one elevation level being connected to at least one channel of a nozzle-body insert that has at least one flow-through opening.Type: ApplicationFiled: July 3, 2003Publication date: November 24, 2005Inventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
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
-
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
-
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
-
Patent number: 6513501Abstract: The invention relates to a flat tubular 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 elongated chamber whose cross section is small in comparison to its longitudinal span and at least a part of whose chamber wall, being operationally connected with the fluid, can be elastically deformed by the fluid pressure pulsations. The invention provides that the cross section of the chamber changes continuously or discretely along its longitudinal span.Type: GrantFiled: May 11, 2001Date of Patent: February 4, 2003Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Martin Maier
-
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
-
Patent number: 6431149Abstract: A fuel supply system of an internal combustion engine that has fuel injection is described. The fuel supply system has a fuel rail, from which injectors are supplied with fuel via valve seats. The damper element has an elastic tubular body arranged in the fuel rail. The tubular body sealingly separating an inner fuel chamber, through which fuel flows, from an outer fuel chamber, through which fuel flows and which is connected to the valve seats. Walls of the tubular body are made of an elastic material. The elastic tubular body is arranged upstream of a pressure regulator.Type: GrantFiled: November 9, 2000Date of Patent: August 13, 2002Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Martin Maier
-
Patent number: 6321719Abstract: The present invention relates to a pressure damper for a pressure vessel, in particular for a fuel distributor for an internal combustion engine, with a damper bellows that is connected to a sealing cap for closing an opening of the pressure vessel. In order to obtain a pressure damper that can be installed as easily as possible and can be manufactured as inexpensively as possible, the provision is made according to the invention that the sealing cap is embodied of one piece as a deep-draw part made of metal.Type: GrantFiled: February 9, 1999Date of Patent: November 27, 2001Assignee: Robert Bosch GmbHInventor: Helmut Schwegler
-
Publication number: 20010029934Abstract: 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 a low pulse duty factors. In this way, a high small quantity meterability is achieved.Type: ApplicationFiled: April 12, 2001Publication date: October 18, 2001Inventors: Erwin Krimmer, Wolfgang Schulz, Helmut Schwegler, Georg Mallebrein
-
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
-
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
-
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
-
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
-
Patent number: 6182502Abstract: In a diagnosis module for leak testing a container of a tank ventilation system of a motor vehicle, which has a reference leak through which a volume flows and is matched to a permissible leakage of the container. The reference leak is constituted by a number of diaphragms disposed in series in the flow direction, in which each of the diaphragms have a throttle opening (25 27). The advantage of this diagnosis module lies in the large diameter throttle openings, which are less susceptible to malfunction when there is a permitted leakage hole that has a significantly smaller diameter.Type: GrantFiled: February 22, 1999Date of Patent: February 6, 2001Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Manfred Zimmermann
-
Patent number: 6112728Abstract: A device for diagnosis of a tank ventilation system of a vehicle, including a tank, an adsorption filter that communicates with the tank by way of a tank connection line and has a ventilation line, a tank ventilation valve that communicates with the adsorption filter by way of a valve line, and an on-board pressure source, by means of which the tank ventilation system can be acted upon with a pressure. A shut-off device is provided that only opens when the tank ventilation system is acted on with pressure by means of the on-board pressure source and closes when the tank ventilation system is acted on with pressure by means of a pressure source connected externally for the purpose of functionality testing.Type: GrantFiled: August 17, 1998Date of Patent: September 5, 2000Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Andreas Blumenstock
-
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
-
Patent number: 5975115Abstract: Known pressure regulator valves for motor vehicles are comprised of a relatively large number of individual parts that have to be assembled at a high cost. In the pressure regulator valve set forth, the stop piece and the housing part are injection molded. This reduces assembly costs in the manufacture of the pressure regulator valve. The pressure regulator valve is particularly suited for fuel delivery systems of motor vehicles with an internal combustion engine.Type: GrantFiled: April 30, 1998Date of Patent: November 2, 1999Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Kurt Herbst, Roland Hoepft, Ludwig Baechle, Thomas Gregorius