Patents by Inventor Bernd Streicher

Bernd Streicher 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: 20110067675
    Abstract: A fuel injection assembly of an internal combustion engine, has an fuel injector for injecting fuel into a combustion chamber of the engine. The fuel injector is built into a cylinder head of the engine and there is an annular gap provided between the fuel injector and the cylinder head, or its attached hood. According to the invention, the gap is filled at least partially, preferably entirely, with a heat-conducting liquid whose thermal conductivity is higher than that of air, or with an elastically deformable, heat-conducting component whose thermal conductivity is higher than that of air.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 24, 2011
    Inventors: Bernd Streicher, Dietmar Zeh, Thomas Pauer
  • Publication number: 20060033062
    Abstract: A fluid control valve having a holder body that has a receptacle containing a piezoelectric actuator unit and a hydraulic coupler module that has at least one positioning piston and at least one actuating piston that is operatively connected to the positioning piston via a hydraulic coupler and actuates a valve-closure member that cooperates with at least one valve seat and in the closed position, prevents a flow of fluid from a valve chamber to a return conduit. The positioning piston is guided in the receptacle by means of a seal.
    Type: Application
    Filed: March 19, 2004
    Publication date: February 16, 2006
    Inventors: Siegfried Ruthardt, Bernd Streicher
  • Patent number: 6588405
    Abstract: The invention relates to a pump device for high pressure fuel delivery in fuel injection systems of internal combustion engines including a pump housing. The pump housing includes a number of pump elements, in which high pressure is exerted on fuel. The fuel that is acted on with high pressure is delivered by the individual pump elements to a common high pressure connecting bore by use of a high pressure conduit system. In order to reduce stress in the bores the high pressure conduit system includes a number of high pressure conduits which communicate with the pump elements and are disposed in a plane different from that of the common high pressure connecting bore in which the high pressure conduits come together at the connecting bore. Through the disposition of the common high pressure connecting bore in a plane different from that of the high pressure conduits, the high pressure conduits can intersect with the high pressure connecting bore in an eccentric fashion.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: July 8, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Streicher, Thomas Schwarz
  • Patent number: 6514050
    Abstract: A radial piston pump for high-pressure fuel delivery in fuel injection systems of internal combustion engines, which includes a common rail injection system. The system includes a drive shaft that is supported in a pump housing and is embodied eccentrically for driving a number of pistons that are disposed radially in respective cylinder chambers into a reciprocating motion in the radial direction in the cylinder chambers upon rotation of the drive shaft. For each piston, a metallic housing part which constitutes the respective cylinder chamber is provided with a fuel intake opening and a fuel outlet opening which are controlled by intake and outlet valves. In order to uncouple the high-pressure sealing points from one another and to respectively define them in a statically exact fashion, the pump is embodied so that the housing part rests with a flat contact surface against a flat contact surface of the metallic housing base body.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: February 4, 2003
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Streicher
  • Patent number: 6446604
    Abstract: The invention relates to a radial piston pump for high-pressure fuel supply in fuel injection systems of internal combustion engines, in particular in a common rail injection system. The piston pump has a drive shaft which is eccentrically supported in a pump housing and on which a ring is slidingly supported. The ring cooperates with a plurality of pistons, disposed radially relative to the drive shaft in a respective cylinder chamber. The pistons are movable radially back and forth in the respective cylinder chamber by rotation of the drive shaft. To increase the efficiency of the engine, the cylinder chambers are filled with less fuel when demand drops. In this so-called partial element filling, in which a plate is retained in contact with a polygonal ring, increased wear and damage are prevented. The wear is brought about by a guide device which prevents rotation of the ring about its own axis.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: September 10, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Josef Guentert, Bernd Streicher, Kasim-Melih Hamutcu
  • Patent number: 6250893
    Abstract: A radial piston pump for a high-pressure fuel supply in fuel injection systems of internal combustion engines, in particular in a common rail injection system, having a drive shaft which is supported in a pump housing and is embodied eccentrically or has cam-like protrusions in the circumferential direction. A plurality of pistons are disposed radially in given cylinder chambers relative to the drive shaft (4), and the pistons are movable radially back and forth in the respective cylinder chamber by rotation of the drive shaft. In carrying out the invention, a transverse force absorbing device is disposed between each piston and the drive shaft. This has the advantage that only forces in the longitudinal direction are brought to bear on the pistons. This means that virtually no moments act on the pistons.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: June 26, 2001
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Streicher
  • Patent number: 6244832
    Abstract: The invention relates to a radial piston pump for high-pressure fuel delivery in fuel injection systems of internal combustion engines, in particular in a common rail injection system, having a housing, a drive shaft that is supported in the pump housing and has an eccentrically embodied shaft segment. A ring is slidingly supported on the shaft segment and cooperates with a plurality of pistons. The pistons are disposed radially with respect to the drive shaft in a respective cylinder chamber. Ends of the pistons oriented toward the drive shaft each have a respective plate. To improve engine efficiency, the cylinder chambers are filled with less fuel as the demand drops, this prevents increased wear and damage from occurring during operation. The problem of wear and damage is solved in that all the plates are kept in contact with the ring by a leaf-spring-like device, in particular a single clamp. In a radial piston pump in which a plate is held by a plate holder, the plate holder is secured to the ring.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: June 12, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Josef Guentert, Hans-Juergen Simon, Bernd Streicher
  • Patent number: 6224351
    Abstract: A radial piston pump for high-pressure fuel delivery in fuel injection systems of internal combustion engines, particularly in a common rail injection system. A drive shaft is supported in a pump housing and is embodied as eccentric or has cam-like projections in the circumference direction. A number of pistons are each disposed in a respective element bore and are situated radially in relation to the drive shaft. The pistons can be set into a reciprocating motion in the radial direction inside the respective element bore through the rotation of the drive shaft in order to aspirate fuel by way of an intake conduit in which an intake valve is disposed. The fuel is aspirated into a cylinder chamber that is defined by the piston in the element bore and is connected to a high-pressure conduit in which a high-pressure valve is disposed. The element bore is disposed together with the intake conduit and the high-pressure conduit in an element head.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: May 1, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Hans-Juergen Simon, Bernd Streicher
  • Patent number: 6139284
    Abstract: A radial piston pump for high-pressure fuel delivery in fuel injection systems of internal combustion engines which includes a common rail injection system. A drive shaft having a number of cam-like projections is supported in a pump housing. A number of pistons disposed radially in cylinder chambers are set into a reciprocating motion in the cylinder chambers upon rotation of the drive shaft. A metallic housing part which constitutes the cylinder chamber is provided with a fuel intake opening and a fuel outlet opening, each of which is controlled by a check valve. The housing part rests with a flat contact surface against a flat contact surface of the metallic housing base body and a projecting section of the housing part, which is concentric to the cylinder chamber extends through a radial opening of the housing base body in the direction toward the drive shaft.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: October 31, 2000
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Streicher
  • Patent number: 6126407
    Abstract: The invention relates to a pump device for high-pressure fuel delivery in fuel injection systems of internal combustion engines, in particular in a common rail injection system, including a radial piston pump (2, 68, 80) with a drive shaft (38, 74, 114) that is supported in a pump housing (14) and is embodied eccentrically or has cam-like projections in the circumference direction, preferably with a number of pistons that are each disposed in a cylinder chamber radially in relation to the drive shaft and can be driven to reciprocate in the cylinder chamber when the drive shaft rotates, and with a check valve on the intake side and the high pressure side, and a low pressure pump (4, 71, 82) connected before the radial piston pump; in order to improve the pump device in such a way that it is more compact and can be produced more cheaply and the danger of the occurrence of leaks is reduced, the low pressure pump (4, 71, 82) is provided on or in the pump housing (14) of the radial piston pump (2, 68, 80), on the
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: October 3, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Josef Guentert, Bernd Streicher, Uwe Kuhn, Juergen Hammer, Thomas Lettner
  • Patent number: 6056043
    Abstract: An accumulator (20) operating according to the layered storage principle is used in connection with the cooling loop of a vehicle, and includes charge alternation devices (34, 38) adapted to upper and lower storage regions (26, 28). The inflow and outflow velocity of the coolant should be between 0.1 and 0.5 m/s, and charging or discharging of the accumulator (20) should occur within 10 to 100 seconds. Inflow and outflow lines (32, 36) run within an insulation space (40) in the fashion of a thermosiphon.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: May 2, 2000
    Assignee: Langerer & Reich GmbH
    Inventors: Roland Strahle, Bernhard Stephan, Bernd Streicher