Patents by Inventor Guenter Wolff

Guenter Wolff 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).

  • Patent number: 10954906
    Abstract: A fuel injection device includes a rail having at least one outflow opening, at least one injector situated on the rail, a connecting piece situated on the injector, and a flange element for fastening the injector on the rail. The flange element includes a central opening through which the connecting piece is guided. A metal-metal sealing is provided between the connecting piece and the rail. The connecting piece is designed in one piece with an undercut, and the flange element engages with the undercut of the connecting piece. The connecting piece presses against the rail in a sealing manner.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: March 23, 2021
    Assignee: ROBERT BOSCH GMBH
    Inventors: Ralf Kromer, Guenter Wolff
  • Patent number: 9759172
    Abstract: A fuel injector which includes an actuator having an electrical contact element, a plug, a fuel supply pipe, and an injection-molded housing part. The plug has a base body, an electrical connection element for an electrical connection with the electrical contact element of the actuator, and a rib which projects from the base body, the injection-molded housing part surrounding the electrical connection element of the plug and being injection-molded on the rib of the plug and the fuel supply pipe.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: September 12, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Martin Scheffel, Sebastian Wieschollek, Axel Bormann, Johann Bayer
  • Patent number: 9309820
    Abstract: A device is described for metering fuel in internal combustion engines is provided, which includes a fuel distributor provided with a flow channel and at least one discharge orifice connected thereto, a valve which is connected to the fuel distributor for metering the fuel and has a pipe connection that is able to be attached to the discharge orifice, and connection means, which connects the fuel distributor and the valve to each other in the attachment region of the pipe connection and the discharge orifice in a pressure-tight manner.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 12, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Guenter Wolff, Ulrich Fischer, Martin Scheffel, Wilhelm Reinhardt
  • Patent number: 9103310
    Abstract: A fuel injector, in particular for the direct injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine, includes a functional part, which has at least one nozzle body, parts of an actuator, an axially movable valve closing body, which forms a sealing seat together with a valve seat surface, as well as a hydraulic extension part, which is fixedly and tightly connected to the functional part. The extension part is an interface between a connection-side inlet stub and the functional part. At least one of the frontal contact surfaces of inlet stub, functional part, and extension part, with which these components press against one another and are fixedly connected, is designed to be convexly curved.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: August 11, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventor: Guenter Wolff
  • Publication number: 20150152799
    Abstract: A device is described for metering fuel in internal combustion engines is provided, which includes a fuel distributor provided with a flow channel and at least one discharge orifice connected thereto, a valve which is connected to the fuel distributor for metering the fuel and has a pipe connection that is able to be attached to the discharge orifice, and connection means, which connects the fuel distributor and the valve to each other in the attachment region of the pipe connection and the discharge orifice in a pressure-tight manner.
    Type: Application
    Filed: May 24, 2013
    Publication date: June 4, 2015
    Inventors: Guenter Wolff, Ulrich Fischer, Martin Scheffel, Wilhelm Reinhardt
  • Publication number: 20130333669
    Abstract: A fuel injection device includes a rail having at least one outflow opening, at least one injector situated on the rail, a connecting piece situated on the injector, and a flange element for fastening the injector on the rail. The flange element includes a central opening through which the connecting piece is guided. A metal-metal sealing is provided between the connecting piece and the rail. The connecting piece is designed in one piece with an undercut, and the flange element engages with the undercut of the connecting piece. The connecting piece presses against the rail in a sealing manner .
    Type: Application
    Filed: January 17, 2012
    Publication date: December 19, 2013
    Inventors: Ralf Kromer, Guenter Wolff
  • Publication number: 20130186986
    Abstract: A fuel injector which includes an actuator having an electrical contact element, a plug, a fuel supply pipe, and an injection-molded housing part. The plug has a base body, an electrical connection element for an electrical connection with the electrical contact element of the actuator, and a rib which projects from the base body, the injection-molded housing part surrounding the electrical connection element of the plug and being injection-molded on the rib of the plug and the fuel supply pipe.
    Type: Application
    Filed: May 13, 2011
    Publication date: July 25, 2013
    Inventors: Guenter Wolff, Martin Scheffel, Sebastian Wieschollek, Axel Bormann, Johann Bayer
  • Publication number: 20120000995
    Abstract: A fuel injector, in particular for the direct injection of fuel into the combustion chamber of a mixture-compressing, spark-ignited internal combustion engine, includes a functional part, which has at least one nozzle body, parts of an actuator, an axially movable valve closing body, which forms a sealing seat together with a valve seat surface, as well as a hydraulic extension part, which is fixedly and tightly connected to the functional part. The extension part is an interface between a connection-side inlet stub and the functional part. At least one of the frontal contact surfaces of inlet stub, functional part, and extension part, with which these components press against one another and are fixedly connected, is designed to be convexly curved.
    Type: Application
    Filed: November 27, 2009
    Publication date: January 5, 2012
    Inventor: Guenter Wolff
  • Patent number: 7581529
    Abstract: A sensor is used to sense a property relating to each one of a plurality of different elevational locations within a vertical plane that is normal to a length of an aircraft. The vertical plane passes through the doorway of the aircraft, and at least some of the plurality of different elevational locations are disposed outside a known surface boundary of the aircraft. A variation in the sensed property between two elevational locations is detected, the variation indicative of an elevational position of the known surface boundary. An elevational position of the doorway of the aircraft is determined based upon a known relationship between the known surface boundary and the doorway, and based upon the indicated elevational position of the known surface boundary. The determined elevational position of the doorway is used to guide an aircraft engaging portion of the movable bridge into elevational alignment with the said doorway.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: September 1, 2009
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Bernd Strauss, Hubert Stier, Helga Goller, Stefan Nuesslein, Reinhard Brendel
  • Publication number: 20070131202
    Abstract: A sensor is used to sense a property relating to each one of a plurality of different elevational locations within a vertical plane that is normal to a length of an aircraft. The vertical plane passes through the doorway of the aircraft, and at least some of the plurality of different elevational locations are disposed outside a known surface boundary of the aircraft. A variation in the sensed property between two elevational locations is detected, the variation indicative of an elevational position of the known surface boundary. An elevational position of the doorway of the aircraft is determined based upon a known relationship between the known surface boundary and the doorway, and based upon the indicated elevational position of the known surface boundary. The determined elevational position of the doorway is used to guide an aircraft engaging portion of the movable bridge into elevational alignment with the said doorway.
    Type: Application
    Filed: November 3, 2004
    Publication date: June 14, 2007
    Inventors: Guenter Wolff, Bernd Strauss, Hubert Stier, Helga Goller, Stefan Nuesslein, Reinhard Brendel
  • Patent number: 7000997
    Abstract: An actuating unit (1) for a wheel brake (2) of a motor vehicle has a hydraulic pump (14) that can be driven at variable speeds by an electric motor (13). In addition, a cylinder-piston unit (3) is provided, with a piston (6) and with cylinder chambers (7, 8) disposed on both sides of the piston. By means of the cylinder-piston unit (3), a brake lining (9) can be pressed against and lifted away from a friction element (10) connected to a vehicle wheel. A 4/3-port directional-control valve (15) is provided between the pump (14) and the cylinder-piston unit (3) and is used to modulate the pressure in the cylinder-piston unit. The actuating unit (1) is associated with a control unit (29), which can process an electric brake request signal and can control the electric motor (13) and the valve (15).
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: February 21, 2006
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Wolff
  • Patent number: 6899123
    Abstract: A valve assembly, in particular for a hydraulic vehicle brake system with traction control, having at least one, preferably electromagnetically actuatable valve, which receives valve components in a valve housing and is retained by fastening means by nonpositive and/or positive engagement in a receiving bore of a valve block. The valve block, at least in the region of the receiving bore, comprises thermoplastic, and the fastening means have at least one retracted region on the radially outer circumference of the valve housing or of a valve holder that retains the valve housing in the receiving bore, into which region plastic rendered molten by heating and ensuing insertion of the valve and/or of the valve holder into the receiving bore can flow, and after cooling of the thermally deformed plastic a positive-engagement connection can develop between the valve housing and the receiving bore or the valve holder and the receiving bore.
    Type: Grant
    Filed: October 28, 2000
    Date of Patent: May 31, 2005
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Wolff
  • Patent number: 6692087
    Abstract: An actuating unit for a wheel brake of a motor vehicle has a hydraulic pump drivable with variable speed by an electric motor, as well as an element, adjusting the return flow of pressurized media to the pump, which is arranged between the delivery side and the intake side of the pump. Furthermore, a cylinder-piston unit is provided, having a piston with identical surfaces on both sides, as well as a cylinder having cylinder chambers arranged on both sides of the piston. In order to press a brake lining against a friction element connected to a vehicle wheel, the pump is connected on the intake side to the cylinder chamber on the brake-lining side, and on the delivery side to the cylinder chamber facing away from the brake lining. The actuating unit is assigned a control device by which an electric brake request signal is able to be processed, and the electric motor and the element are controllable.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: February 17, 2004
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Wolff
  • Patent number: 6623087
    Abstract: An actuating unit (1) for a wheel brake (2) of a motor vehicle has a hydraulic pump (12), which can be driven at variable speeds by an electric motor (11) and supplies pressure fluid from a storage tank (22), and has an element (24), which adjusts a return flow of pressure fluid to the pump (12) and is disposed between the pressure side (13) and the suction side (16) of the pump (12). In addition, a cylinder-piston unit (3) is provided, which is for pressing a brake lining (7) against a friction element (8) connected to a vehicle wheel. For purposes of controlling the brake pressure as a function of wheel slip, a pressure increase valve (18) and a pressure decrease valve (21) are disposed between the pump (12) and the cylinder-piston unit (3). In addition, a control unit (29) is provided, which can process electrical brake request signals and slip signals and can control the electric motor (11), the element (24), and the valves (18, 21).
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: September 23, 2003
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Wolff
  • Patent number: 6598944
    Abstract: The invention relates to an electromagnetic device, in particular for a slip-controlled, hydraulic vehicle brake system, having at least a first magnet valve which is closed in its currentless basic position and having at least a second magnet valve which is open in its currentless basic position, the first and second magnet valves being received in receiving bores of a valve block. The invention provides that the first and second magnet valves have structurally identical, one-piece valve housings, in each of which all the magnet valve components are received essentially without any axial protrusion, and that the total length of each of the first and second magnet valves is recessed in the receiving bores of the valve block, and that a nonferromagnetic spacer ring is disposed between a face end, pointing toward the valve seat, of at least one magnet coil and a dividing plane between this magnet coil and the associated pole piece.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: July 29, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Friedrich Megerle, Martin Oehler, Dirk Hofmann
  • Patent number: 5988774
    Abstract: A hydraulic brake system for a vehicle with an anti-lock arrangement operable by wheel brake pressures are individually variable in front wheel brakes and rear wheel brakes, connected to diagonal brake circuits, of a four-wheeled vehicle, in order to reduce or eliminate a threat of wheel locking. The anti-lock arrangement has at least one return pump per brake circuit. The anti-lock arrangement is equipped with a total of four electrically controllable valves. In each of the brake circuits I, II there is one first valve between the master cylinder and a front wheel brake and one second valve between the master cylinder and the rear wheel brake. All the valves are embodied as normally open valves and are electrically closable. Inlets of each of the return pumps communicate directly with the respective front wheel brakes and indirectly with the rear wheel brakes through throttles. Check valves that open toward the inlets of the return pumps are provided in series with the throttles.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: November 23, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Wolf-Dieter Jonner, Guenter Wolff, Werner Wilde, Michael Tischer, Juergen Breitenbacher, Gerhard Wetzel, Rainer Heinsohn, Andreas Klug, Hermann Kaess, Peter Zeiner, Klaus Schmidt, Harald Ott
  • Patent number: 5791628
    Abstract: An electromagnetically actuatable valve that reduces the locking force of the valve has a seat valve, which can be transferred to a closing position counter to the force of a prestressed restoring spring. A valve seat communicates with an inflow side, and a closing member disposed on a tappet communicates on the outflow side of the valve. A magnet armature cooperates with the tappet in a valve dome which communicates with the outflow side. The magnet armature and the tappet are two separate components which positively support one another. On the inflow side, a longitudinal bore of the tappet originates at the closing member, and a first longitudinally movable pin is receive therein largely in a pressure-tight fashion. The cross section of the first pin is at least approximately equivalent to the sealing cross section of the valve seat. The longitudinal bore of the tappet is continued in the magnet armature. A second pin is received in that longitudinal bore.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: August 11, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Juergen Zechmann, Werner Brehm
  • Patent number: 5617894
    Abstract: The invention relates to a valve body which is provided for a solenoid valve. The valve body is held between two perforated disks whose holes each have a collar. The two perforated disks are connected to form a valve body holder. In order to connect the two perforated disks, each have tongues which project through holes of the respective other perforated disk and are bent over in such a way that they hold the two perforated disks against one another. The tongues protrude obliquely from the valve body holder with their free ends. They serve as springs which are supported against an end wall face of a valve chamber and press against a valve seat lying opposite the end wall face. The invention constitutes a cost-effective design of a valve body which is integral with a valve spring.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: April 8, 1997
    Assignee: Robert Bosch GmbH
    Inventor: Guenter Wolff
  • Patent number: 5445448
    Abstract: A known electromagnetically actuatable valve has a tubular housing sleeve, a through opening radially penetrating the housing sleeve, and inside the housing sleeve, a valve body having a valve seat and an associated movable valve closing member, and a throttle, which comprises a throttle body and a throttle insert built into it having a throttle restriction, which is embodied as a throttle bore. The throttle body is slipped on like a cap over an open end of the housing sleeve. The throttle of this kind, embodied in a complex manner, is expensive and demands an inordinate amount of installation space. To reduce expense and save installation space, the throttle body along with its throttle insert is omitted and the function of the throttle bore is taken on by the through opening, the through opening is embodied as narrow opening in accordance with the throttle function to be produced. The valve can be used in antilock devices of hydraulic brake systems for motor vehicles.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: August 29, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Wolff, Klaus Mueller, Norbert Alaze, Michael Friedow, Juergen Gruber
  • Patent number: 5335984
    Abstract: A hydraulic brake system including at least one electromagnetically actuatable valve is disposed in a receiving bore. A throttle body at least partly surrounding the valve on one end in the axial direction is provided in the receiving bore and has a throttle restriction in a through bore. In this hydraulic brake system, adjusting the stroke of an armature can be done in a simple manner before the throttle body is installed on the valve. The valve and the throttle body is especially suitable for outlet valves of hydraulic motor-vehicle brake systems.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: August 9, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Norbert Alaze, Juergen Gruber, Guenter Wolff