Patents by Inventor Achim Koehler
Achim Koehler 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: 10145345Abstract: The invention relates to a fluid conveyance system for a fluid, comprising a low-pressure conveyance system having a low-pressure pump (2) and a high-pressure conveyance system having a high-pressure pump (8), which are connected by means of a connecting line, wherein the fluid conveyance system has a pressure damper (19). According to the invention, a fluid conveyance system is provided, by means of which a pulsation of the fluid caused by flow-rate waves or pressure waves in the fluid is damped. This is achieved in that the pressure damper (19) is arranged in the lower-pressure conveyance system and is a hydraulic pressure damper (19). Said hydraulic damper (19) has a piston (21) arranged in a cylinder (20), which piston can be moved against the force of a compression spring (23) and the vapor pressure present in a compression-spring chamber (22) accommodating the compression spring.Type: GrantFiled: September 11, 2014Date of Patent: December 4, 2018Assignee: Robert Bosch GmbHInventors: Andreas Dutt, Achim Koehler
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Patent number: 9827934Abstract: An ornamental grille arranged for attachment to a peripheral frame of a motor vehicle radiator grille includes a grille structure having respective grille elements. Domes are formed on points of intersection of the grille elements of the grille structure.Type: GrantFiled: January 23, 2013Date of Patent: November 28, 2017Assignee: Daimler AGInventors: Hans-Peter Maier, Jochen Roesch, Achim Koehler
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Publication number: 20160230726Abstract: The invention relates to a fluid conveyance system for a fluid, comprising a low-pressure conveyance system having a low-pressure pump (2) and a high-pressure conveyance system having a high-pressure pump (8), which are connected by means of a connecting line, wherein the fluid conveyance system has a pressure damper (19). According to the invention, a fluid conveyance system is provided, by means of which a pulsation of the fluid caused by flow-rate waves or pressure waves in the fluid is damped. This is achieved in that the pressure damper (19) is arranged in the lower-pressure conveyance system and is a hydraulic pressure damper (19). Said hydraulic damper (19) has a piston (21) arranged in a cylinder (20), which piston can be moved against the force of a compression spring (23) and the vapor pressure present in a compression-spring chamber (22) accommodating the compression spring.Type: ApplicationFiled: September 11, 2014Publication date: August 11, 2016Inventors: Andreas DUTT, Achim KOEHLER
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Publication number: 20150028605Abstract: An ornamental grille arranged for attachment to a peripheral frame of a motor vehicle radiator grille includes a grille structure having respective grille elements. Domes are formed on points of intersection of the grille elements of the grille structure.Type: ApplicationFiled: January 23, 2013Publication date: January 29, 2015Inventors: Hans-Peter Maier, Jochen Roesch, Achim Koehler
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Patent number: 8371267Abstract: The invention relates to a high-pressure fuel pump comprising a drive shaft supported by bearings, and fuel flows through the bearings in a forced manner in such a way that the mechanical and thermal load-carrying capacity of the bearings, and thus the entire high-pressure fuel pump, is significantly increased.Type: GrantFiled: May 8, 2006Date of Patent: February 12, 2013Assignee: Robert Bosch GmbHInventors: Marcus Kristen, Achim Koehler, Sascha Ambrock, Walter Fuchs, Dietmar Ottenbacher, Bertram Schweitzer, Christian Langenbach, Joerg Wuerz, Saban Akmese, Marco Lamm, Karl-Heinz Traub
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Publication number: 20120132177Abstract: The invention relates to a high-pressure fuel pump comprising a drive shaft supported by bearings, and fuel flows through the bearings in a forced manner in such a way that the mechanical and thermal load-carrying capacity of the bearings, and thus the entire high-pressure fuel pump, is significantly increased.Type: ApplicationFiled: May 8, 2006Publication date: May 31, 2012Inventors: Marcus Kristen, Achim Koehler, Sascha Ambrock, Walter Fuchs, Dietmar Ottenbacher, Bertram Schweitzer, Christian Langenbach, Joerg Wuerz, Saban Akmese, Marco Lamm, Karl-Heinz Traub
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Patent number: 7878779Abstract: The vane pump has a housing containing a rotor driven by a drive shaft. A number of grooves are distributed over the rotor circumference and extend in a substantially radial direction of the rotor, in each of which grooves a wing-shaped delivery element is guided in sliding fashion. The rotor is surrounded by a circumferential wall that extends eccentrically in relation to its rotation axis against which the radially outer ends of the delivery elements rest. Housing end walls of the pump housing adjoin the rotor in the direction of its rotation axis. An annular groove encompassing the rotation axis of the rotor is provided in at least one of the housing end walls and is situated opposite the radially inner regions of the grooves of the rotor and communicates with the pressure region via a connecting groove in the housing end wall. The connecting groove extends from the pressure region radially inward in the rotation direction of the rotor to the annular groove.Type: GrantFiled: November 16, 2005Date of Patent: February 1, 2011Assignee: Robert Bosch GmbHInventors: Achim Koehler, Christian Langenbach, Joerg Wuerz, Joerg Morlok
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Publication number: 20090291010Abstract: The vane pump has a housing containing a rotor driven by a drive shaft. A number of grooves are distributed over the rotor circumference and extend in a substantially radial direction of the rotor, in each of which grooves a wing-shaped delivery element is guided in sliding fashion. The rotor is surrounded by a circumferential wall that extends eccentrically in relation to its rotation axis against which the radially outer ends of the delivery elements rest. Housing end walls of the pump housing adjoin the rotor in the direction of its rotation axis. An annular groove encompassing the rotation axis of the rotor is provided in at least one of the housing end walls and is situated opposite the radially inner regions of the grooves of the rotor and communicates with the pressure region via a connecting groove in the housing end wall. The connecting groove extends from the pressure region radially inward in the rotation direction of the rotor to the annular groove.Type: ApplicationFiled: November 16, 2005Publication date: November 26, 2009Inventors: Achim Koehler, Christian Langenbach, Joerg Wuerz, Joerg Morlok
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Publication number: 20080190502Abstract: A valve assembly of a high-pressure fuel pump includes a valve element disposed in a valve chamber and a fluid conduit adjoining the valve chamber upstream. The fluid conduit is embodied such that in at least some portions a rotation (swirl) about a longitudinal axis of the fluid conduit is impressed on the fluid stream that flows toward the valve chamber.Type: ApplicationFiled: October 21, 2004Publication date: August 14, 2008Inventors: Ulrich Maier, Sascha Ambrock, Peter Bauer, Achim Koehler
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Patent number: 7398764Abstract: Disclosed is a fuel metering unit for high-pressure pumps of fuel injection systems, whose leakproofness in zero delivery operation has been further improved and whose manufacture and assembly have been simplified.Type: GrantFiled: July 18, 2003Date of Patent: July 15, 2008Assignee: Robert Bosch GmbHInventors: Achim Koehler, Sascha Ambrock
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Patent number: 7290559Abstract: A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the opening direction by the pressure prevailing in an inlet, and the valve member is inserted into the valve housing from the side of the valve seat. The valve housing is embodied in one piece and is embodied as cup-shaped and has both a bottom and a jacket region that defines a recess. With the open end of its recess, the valve housing points out of the receptacle, and the valve seat is located on the bottom of the valve housing, facing away from the recess. With a shaft, the valve member protrudes through a bore in the bottom into the recess in which the closing spring is located.Type: GrantFiled: April 8, 2004Date of Patent: November 6, 2007Assignee: Robert Bosch GmbHInventors: Markus Nieslony, Alfons Schoetz, Matthias Distel, Achim Koehler, Falko Bredow, Waldemar Kiel, Jochen Aleker
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Publication number: 20070221162Abstract: The high-pressure pump has at least one pump element with a pump piston driven in a reciprocating motion and defining a pump work chamber into which fuel is aspirated from a fuel inlet via an inlet valve in the intake stroke and from which fuel is positively displaced in the pumping stroke. The inlet valve has a valve member which with a sealing face cooperates with a valve seat for controlling the communication of the pump work chamber with the fuel inlet. The sealing face of the valve member has two portions with first and second cone angles that are different from one another. The seat face has a constant, third cone angle that is different from the first and second cone angles. At the transition between the two portions of the sealing face, a protruding edge is formed, with which the sealing face comes to rest on the seat face with the constant cone angle.Type: ApplicationFiled: April 18, 2005Publication date: September 27, 2007Inventors: Achim Koehler, Sascha Ambrock
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Patent number: 7273036Abstract: A high-pressure a radial piston fuel pump in which the intake valves are embodied as ball valves, which has an advantageous effect on the efficiency of the high-pressure fuel pump. Moreover, the production and assembly of the high-pressure fuel pump of the invention are simplified by the use of ball valves.Type: GrantFiled: October 31, 2003Date of Patent: September 25, 2007Assignee: Robert Bosch GmbHInventors: Burkhard Boos, Stefan Kieferle, Matthias Distel, Achim Koehler, Sascha Ambrock, Karsten Ruth, Jaroslav Zivny
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Patent number: 7156076Abstract: A fuel injection apparatus having a fuel supply pump supplying fuel to a high-pressure pump which delivers fuel into a reservoir with a metering device for adjusting the fuel quantity delivered into the reservoir; the metering device has a control valve triggered by an actuator. The control valve has a valve element guided in a cylinder of a valve housing can be slid by the actuator in opposition to a spring and in cooperation with an opening in the cylinder bore connected to an inlet from the supply pump or an outlet to the high-pressure pump, controls a flow cross section from the supply pump to the high-pressure pump. The valve element can close the flow cross section at least almost completely and also control a connection of the inlet from the supply pump or of the outlet to the high-pressure pump to a discharge region, and open this connection when it closes the flow cross section.Type: GrantFiled: March 18, 2003Date of Patent: January 2, 2007Assignee: Robert Bosch GmbHInventors: Andreas Holl, Achim Koehler, Sascha Ambrock, Martin Klander
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Patent number: 7128054Abstract: The fuel injection system has a high-pressure pump, by which fuel is pumped at high pressure into a reservoir. By means of a feed pump, fuel is pumped from a fuel tank to the high-pressure pump. By means of a fuel metering device, disposed between the feed pump and the high-pressure pump, the inflow of fuel to the high-pressure pump is adjusted. From the connection between the feed pump and the fuel metering device, a bypass connection leads away to a relief region. An inflow of fuel from the feed pump to the fuel metering device and/or to the bypass connection is effected through at least one conduit in a housing part, and in the at least one conduit, at least one fuel filter is disposed upstream of the fuel metering device and/or of the bypass connection.Type: GrantFiled: February 11, 2003Date of Patent: October 31, 2006Assignee: Robert Bosch GmbHInventors: Achim Koehler, Sascha Ambrock, Petra Boehm, legal representative, Jacqueline Boehm, legal representative, Natalie Boehm, legal representative, Thomas Boehm, deceased
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Publication number: 20060239847Abstract: A high-pressure pump for a fuel injection system of an internal combustion engine, having a housing at least one pump element having a pump piston located in the housing and driven in a reciprocating motion via a transmission element by a drive shaft supported rotatably in the housing via at least one bearing point. The drive shaft has an eccentric portion on which the transmission element is rotatably supported via a bearing point. Fuel for lubrication is delivered to the bearing point of the transmission element in the eccentric portion of the drive shaft via a conduit system extending through the drive shaft.Type: ApplicationFiled: December 16, 2003Publication date: October 26, 2006Inventors: Ulrich Maier, Achim Koehler, Sascha Ambrock, Peter Bauer, Vittorio Caroli
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Patent number: 7077107Abstract: Fuel injection system having a feed pump by which fuel is pumped out of a fuel tank to the intake side of a high-pressure pump pumps fuel into a reservoir as a function of engine operating parameters. A fuel metering device is provided for adjusting the fuel quantity pumped into the reservoir by the high-pressure pump. An electrically actuated blocking valve is disposed between the feed pump and the high-pressure pump, and by means of this valve the high-pressure pump can be disconnected completely from the feed pump. By means of the blocking valve, it can still be attained that no fuel is pumped by the high-pressure pump even if the fuel metering device does not provide complete sealing.Type: GrantFiled: December 24, 2002Date of Patent: July 18, 2006Assignee: Robert Bosch GmbHInventors: Burkhard Boos, Stefan Kieferle, Matthias Distel, Achim Koehler, Sascha Ambrock
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Publication number: 20060086016Abstract: A device for fixing lines and/or pipelines, cables, cable sleeves and/or small components is fixed to the underside of a motor vehicle with the aid of at least one cover plate. The device may be designed and arranged such that savings may be made on fixing elements. At least one holder may be provided for the purpose of accommodating the pipelines, cables, cable sleeves and/or small components and connected to a body part of a motor vehicle between the underside of the motor vehicle and the cover plate, the cover plate and the holder being fitted to the body part with the aid of a fixing element.Type: ApplicationFiled: August 29, 2005Publication date: April 27, 2006Inventors: Anthony Cornell, Holger Eissler, Gerd Felber, Achim Koehler
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Publication number: 20060042600Abstract: Disclosed is a fuel metering unit for high-pressure pumps of fuel injection systems, whose leakproofness in zero delivery operation has been further improved and whose manufacture and assembly have been simplified.Type: ApplicationFiled: July 18, 2003Publication date: March 2, 2006Inventors: Achim Koehler, Sascha Ambrock
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Publication number: 20060039811Abstract: A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the opening direction by the pressure prevailing in an inlet, and the valve member is inserted into the valve housing from the side of the valve seat. The valve housing is embodied in one piece and is embodied as cup-shaped and has both a bottom and a jacket region that defines a recess. With the open end of its recess, the valve housing points out of the receptacle, and the valve seat is located on the bottom of the valve housing, facing away from the recess. With a shaft, the valve member protrudes through a bore in the bottom into the recess in which the closing spring is located.Type: ApplicationFiled: April 8, 2004Publication date: February 23, 2006Inventors: Markus Nieslony, Alfons Schoetz, Matthias Distel, Achim Koehler, Falko Bredow, Waldemar Kiel, Jochen Aleker