Patents Represented by Attorney Ronald E. Greigg
  • Patent number: 8269394
    Abstract: The invention relates to a commutator with contact segments, arranged at a distance from each other and forming a brush running surface. Each contact segment is soldered to a securing portion of a metal segment support piece. The commutator has a hub body made from an electrically insulating material which supports the segment support pieces which are each provided with a winding connector hook. According to the invention, at least one solder barrier recess is provided in the upper side of the securing portion facing the contact segment and/or in the under side of the contact segment facing the securing portion.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: September 18, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Andrew Pierson, Dirk Altmeyer, Helmut Huber
  • Patent number: 8261850
    Abstract: The invention relates to a striking mechanism of a handheld electric power tool, in particular a percussion drill and/or percussion hammer, having a hammer cylinder, a piston mounted with a guide section inside the hammer cylinder in a longitudinally displaceable manner, and a piston outer guide on which a guide area of the piston is guided in a longitudinally displaceable manner. A piston end located outside the hammer cylinder comprises an overlap for overlapping an end area of the hammer cylinder, and the guide area at least partially belongs to the overlap or is affixed there.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 11, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Rudolf Fuchs
  • Patent number: 8251461
    Abstract: To improve brake force in front and rear combined brake control, a brake control device includes a front wheel brake caliper having at least two front wheel cylinders, and a rear wheel brake caliper having a rear wheel cylinder. A front wheel brake conduit is disposed between a front wheel master cylinder and one of the front wheel cylinders, and a rear wheel brake conduit is disposed between a rear wheel master cylinder and the rear wheel cylinder. A pressure amplification conduit branches from a first position in the rear wheel brake conduit and merges with the rear wheel brake conduit at a second position downstream of the first position. A combined brake conduit branches from a third position in the rear wheel brake conduit positioned downstream of the first position and is coupled to the other of the front wheel cylinders. A first switch control valve is disposed between the first position and the third position in the rear wheel brake conduit.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: August 28, 2012
    Assignee: Bosch Corporation
    Inventors: Hiroaki Atsushi, Tohru Masuno
  • Patent number: 8248076
    Abstract: The invention relates to a device used to measure exhaust gas having ionised particles in a motor vehicle. The device comprises an ionising device which includes an electrode arrangement and a charge measuring device. The electrode arrangement comprises at least one pair of electrodes including at least one electrode and at least one counter electrode. A dielectric is arranged between the electrode and the counter electrode in order to generate a dielectrically impeded discharge. The invention also relates to a corresponding method.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: August 21, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Katharina Schaenzlin, Henrik Schittenhelm
  • Patent number: 8241023
    Abstract: A pumping unit having a pump chamber with a rotor mounted in a rotatable manner within the chamber. The pumping chamber is formed by a circumferential wall and two end walls. The circumferential wall is formed on an annular collar of a pump part and has on its inner surface a track on which sealing bodies of a rotor roll. To avoid deformation of the pump part by hydraulic forces or by pressing-in forces, ribs are arranged on the outer surface of the circumferential wall which extend away from the pump chamber. A shoulder is arranged on the side of the end wall which is directed away from the pump chamber. The shoulder is connected by a press fit to the pump housing and has thin walls so that pressing forces do not result in any deformation to the end wall of the pump chamber.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: August 14, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Adam Wilhelm, Peter Weber, Johann Rothkopf, Tamara Rothkopf, legal representative, Mehmet Gueluem, Fevzi Yildirim, Thomas Wuensch, Reinhard Dittmann
  • Patent number: 8240781
    Abstract: The invention relates to a method for operating a braking system for motor vehicles with electrically actuated hydraulic valves, the coils of which are powered up, at least in phases, with currents which modify the currentless state of the hydraulic valves, in order to heat the hydraulic fluid present in the system. The hydraulic fluid is heated via a heating profile which, in accordance with the hydraulic fluid temperature, activates the heating phase of the hydraulic fluid. The heating profile consists of a first heating phase and, subsequent thereto, a second heating phase. During the first heating phase, the coils are powered up in such a way that the coil temperature at the end of the first heating phase corresponds to a pre-defined temperature value of the coil which is at least approximately maintained during the second heating phase when powering up the coils.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: August 14, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Hans Heckmann, Jens Kolarsky, Harald Hermann, Timo Jahnz, Dirk Foerch, Werner Quirant, Michael Kunz, Michael Bunk, Philipp Grell, Thomas Loeffler
  • Patent number: 8244429
    Abstract: Secure failure of a brake switch is enabled with a simple configuration. When brake switches 6a and 6b are determined to be not ON together and not OFF together (S110 and S112), first and second determination counters perform count respectively (S114 and S120), and on the other hand, when the two brake switches 6a and 6b are determined to be ON together, a count value of the first determination counter is set to zero (S132), and when the brake switches are determined to be OFF together, a count value of the second determination counter is set to zero (S136), those operation being periodically repeated, and when one of the count values of the first and second determination counters exceeds one of respective predetermined values ? and ? (S118 and S214), one of the two brake switches 6a and 6b is determined to be failed, which enables detection of a failure state that one of the brake switches is normally ON or normally OFF.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 14, 2012
    Assignees: Bosch Corporation, Nissan Diesel Motor Co., Ltd.
    Inventors: Masaki Shibasaki, Tetsuya Shinguchi, Takayuki Wakai, Masaaki Maeno
  • Patent number: 8234769
    Abstract: The invention relates to a device for mounting a needle guard onto a syringe body that is provided with a needle. The device includes a retaining device for retaining the syringe body, a needle guard receptacle for receiving the needle guard, a compressed air system for providing compressed air, a first displacement device for displacing the needle guard receptacle in a vertical direction, and a rotation device for at least partially rotating the needle guard receptacle. The needle guard receptacle is disposed beneath the retaining device while the compressed air is fed to the needle guard receptacle such that the needle guard is suspended on an air cushion in a floating manner. The needle guard receptacle can be displaced in a vertical direction by the first displacement device. The invention further relates to a method for mounting the needle guard onto the syringe body.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: August 7, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Juergen Leidig
  • Patent number: 8230945
    Abstract: The invention relates to a hand machine tool which has an intermediate flange, particularly for receiving transmission elements. The flange has at least one base body having at least one bearing point. It is proposed that at least one opening is provided at least in the area of the bearing point.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: July 31, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Bernhardt, Holger Ruebsaamen, Andreas Schlegel
  • Patent number: 8234053
    Abstract: According to the invention, erroneous learning of an accelerator pedal fully-closed position is reliably detected, problems originating from the erroneous learning are prevented from arising, and further improvements in reliability of vehicle motion are achieved.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: July 31, 2012
    Assignees: Bosch Corporation, Nissan Diesel Motor Co., Ltd.
    Inventors: Rika Takayanagi, Takayuki Wakai, Tadamichi Sakamoto, Masaki Shibasaki, Masaaki Maeno
  • Patent number: 8226018
    Abstract: The invention relates to a fuel injector with an injector housing which has a high-pressure fuel connection which is connected to a central high-pressure fuel source outside the injector housing, and with a pressure chamber within the injector housing. According to the pressure in a coupling chamber, fuel under a high pressure is injected from the pressure chamber into a combustion chamber of an internal combustion engine when a nozzle valve opens. The nozzle valve has a combustion chamber-remote end with a control pressure surface which is acted upon in the coupling chamber by the coupling chamber pressure. In order to create a fuel injector which can be produced inexpensively, the nozzle valve has at least one low-pressure surface which is averted from the combustion chamber and acted upon with low pressure.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: July 24, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Hans-Christoph Magel
  • Patent number: 8225598
    Abstract: A metering device for introducing liquid reducing agent into an exhaust gas pipe. A metering valve is supplied with contents from a working tank by a delivery unit and dispenses the tank contents in a discharge direction. The delivery unit establishes a negative pressure between the delivery unit and the metering valve when the delivery direction is reversed. The negative pressure causes gas to be drawn off through the metering valve against the discharge direction. The delivery direction is reversed by either a feed pump with a reversible effective direction or a feed pump and a repolarization valve which communicates with the feed pump and transposes an inlet and an outlet of the feed pump.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 24, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Haeberer, Matthias Horn, Hartmut Lueders, Leopold Bernegger
  • Patent number: 8215226
    Abstract: In the negative pressure booster, when in operation, a reaction disc (35) deflects due to the reaction from an output shaft (34) and pushes a pin (28) backward, and the pin (28) pushes a vacuum valve seat member (21) backward via an arm (25). Thereafter, the vacuum valve seat member (21) pushes up a valve body (15) backward via a vacuum valve portion (17), and an atmosphere valve portion (16) moves backward relative to a valve body (4). The stroke of an input shaft (11) is shortened by an amount an atmosphere valve (20) and a vacuum valve (23) have moved backward. As the valve body (15) is pushed up backward, further, a balance position for the atmosphere valve (20) and the vacuum valve (23) shifts backward depending upon the output (input). Therefore, the stroke of the input member is shortened at the time of producing a large output.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: July 10, 2012
    Assignee: Bosch Corporation
    Inventor: Satoru Watanabe
  • Patent number: 8210454
    Abstract: The invention relates to a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, which fuel injector comprises an injection valve element, for opening and closing at least one injection opening and a pressure booster, by way of which fuel which is at system pressure is compressed to injection pressure. The pressure booster is actuated via a first control valve and the injection valve element is actuated via a second control valve. The pressure booster comprises a pressure booster piston which is assigned a spring element which is supported by way of one side on the injector housing and by way of the other side on the pressure booster piston. The pressure booster piston delimits a compression chamber, a differential pressure chamber and a control chamber.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: July 3, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Frasch, Stephan Wehr
  • Patent number: 8212509
    Abstract: The invention relates to a method for positional recognition of a rotor of an electronically commutated electric machine, in particular an electric motor, in which a zero crossover of a voltage induced in a coil section of the rotor or stator is used for positional recognition. According to the invention, to determine the zero crossover the coil section is briefly powered down. A rotor/stator is used, comprising at least two coil sections, one of which has a lower inductance relative to the other one, and preferably only the coil section with the lower inductance is used for the positional recognition.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: July 3, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Krauth, Johannes Rehagen, Eike Hermann Timm
  • Patent number: 8210619
    Abstract: An object of the invention is to provide a braking control system of a two-wheeled motor vehicle, by which when a front-and-rear-wheel-interlocked brake operates, operation feeling of a brake lever is improved, and consequently more natural operation feeling may be provided. A braking control system of a two-wheeled motor vehicle according to the invention performs front-and-rear-wheel-interlocked braking control that allows a front-wheel brake and a rear-wheel brake to operate in an interlocked manner. The front-wheel brake is configured of a front-wheel first brake and a front-wheel second brake. ECU 400 controls a front-wheel hydraulic circuit 100 so that the first brake operates according to the front-and-rear-wheel-interlocked braking control. Furthermore, the ECU 400 controls the front-wheel hydraulic circuit 100 so that the front-wheel second brake receives hydraulic pressure caused along with operation of a brake lever 101 during performing the front-and-rear-wheel-interlocked braking control.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: July 3, 2012
    Assignee: Bosch Corporation
    Inventors: Hiroaki Atsushi, Tohru Masuno
  • Patent number: 8205765
    Abstract: The invention relates to a fuel reservoir for gaseous fuel in a vehicle, in particular a sorption reservoir. The fuel reservoir is delimited by at least one wall and includes a sorption material that is contained in its interior. The fuel reservoir has a tank inlet valve containing a shut-off valve and a throttle restriction valve. The restriction of the gaseous fuel takes place inside the fuel reservoir.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: June 26, 2012
    Assignees: Robert Bosch GmbH, BASF Aktiengesellschaft
    Inventors: Werner Gruenwald, Thorsten Allgeier, Kai Oertel, Ian Faye, Stephan Leuthner, Jan-Michael Graehn, Markus Schubert
  • Patent number: 8205596
    Abstract: The fuel injection device for an internal combustion engine comprises a feed pump which has an electric drive, by which feed pump fuel is fed from a fuel storage tank into a low-pressure region to the suction side of at least one high-pressure pump. The high-pressure pump pumps fuel into a high-pressure region in which at least one injector is provided to inject the fuel into the internal combustion engine. The fuel injection is controlled by an electric control device. Arranged in the low-pressure region is a pressure sensor which is connected to the control device. The electric drive of the feed pump is activated by the control device in order to set a feed quantity of the feed pump which is variable as a function of at least one operating parameter of the internal combustion engine and/or of the high-pressure pump.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: June 26, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Kieferle, Dorothee Sommer, Oliver Becker, Bjoern Noack
  • Patent number: 8201753
    Abstract: An actuator module including a piezoactuator, for example for a piezoinjector for metering fuel in an internal combustion engine, is proposed. The piezoactuator has piezoelements stacked one above another between an actuator head and an actuator foot and is provided with at least one elastomer layer enclosing the piezoelements. The elastomer layer is enveloped by a corrugated bellows or by telescopic tubes, composed of a material that is diffusion-impermeable with respect to a fuel to be metered by the piezoinjector. The corrugated bellows or the telescopic tubes have on their periphery grooves which can absorb expansions of the elastomer layer or of the piezoactuator.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: June 19, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Rudolf Heinz, Dieter Kienzler, Udo Schaich
  • Patent number: 8193890
    Abstract: The invention relates to a method and an arrangement for winding a winding wire onto a winding body, and to an associated magnet assembly. The start of the winding wire is threaded into a first wire-receiving slot of a first electrical connection dome. By a winding operation a predefinable number of turns are then wound onto the winding body, and one end of the winding wire is threaded into a second wire-receiving slot of a second electrical connection dome and cut off. According to the invention, the start of the winding wire which has been threaded into the first wire-receiving slot is placed on a first wire support which is arranged downstream of the first wire-receiving slot.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: June 5, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Rafael Gonzalez Romero, Bernd Kellner