Patents by Inventor Dietmar Schmieder

Dietmar Schmieder 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: 20190309720
    Abstract: An injector for injecting a fluid, including a valve seat, on which a sealing area is situated, and a closing element, which is situated on an injector center line and which, on the valve seat, releases and closes at least one through-opening, the at least one through-opening having a main axis at an angle of inclination with respect to the injector center line, the at least one through-opening having an inflow area, and the inflow area having a tapering design.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 10, 2019
    Applicant: Robert Bosch GmbH
    Inventors: Dietmar SCHMIEDER, Philipp ROGLER
  • Publication number: 20190162144
    Abstract: A method for manufacturing an injector for injecting fuel, the injector including: a closing body which is linearly movable in an axial direction and a valve seat element having at least one passage for injecting the fuel, a valve seat with which the closing body is in contact for closing off the at least one passage, and a guide area for guiding the closing body when same is moving in the axial direction, the method being characterized in that the valve seat and the guide area are hard turned.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 30, 2019
    Inventors: Dietmar Schmieder, Nobert Redlich, Philipp Rogler
  • Publication number: 20190107092
    Abstract: A decoupling element for a fuel injection device is characterized in that a low-noise configuration is implemented, and includes at least one fuel injector and a receiving borehole in a cylinder head for the fuel injector, and the decoupling element is introduced between a valve housing of the fuel injector and a wall of the receiving borehole. The decoupling element has a bowl- or cup-shaped configuration, and includes a radially outer contact area and a radially inner contact area with which the decoupling element is radially inwardly and radially outwardly placeable against the fuel injector and a shoulder of the receiving borehole. The radially inner contact area of the decoupling element has a contact surface that corresponds to a convexly curved countersurface on the fuel injector. The fuel injection device is for the direct injection of fuel into a combustion chamber of a mixture-compressing spark ignition internal combustion engine.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 11, 2019
    Inventors: Dietmar Schmieder, Corren Heimgaertner
  • Publication number: 20190107091
    Abstract: The decoupling element is for a fuel injection device, in which a low-noise configuration is implemented, and includes at least one fuel injector and a receiving borehole in a cylinder head for the fuel injector, and the decoupling element is introduced between a valve housing of the fuel injector and a wall of the receiving borehole. The decoupling element has a bowl- or cup-shaped configuration, and includes a radially outer contact area and a radially inner contact area with which the decoupling element is radially inwardly and radially outwardly placeable against the fuel injector and a shoulder of the receiving borehole. The radially inner contact area of the decoupling element has a spherically convex contact surface whose curvature has a largely constant spherical radius. The fuel injection device is particularly suited for the direct injection of fuel into a combustion chamber of a mixture-compressing spark ignition internal combustion engine.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 11, 2019
    Inventors: Dietmar Schmieder, Corren Heimgaertner
  • Publication number: 20190107093
    Abstract: A decoupling element for a fuel injection device is characterized in that a low-noise configuration is implemented. The fuel injection device includes at least one fuel injector and a receiving borehole in a cylinder head for the fuel injector and the decoupling element between a valve housing of the fuel injector and a wall of the receiving borehole. The decoupling element has a bowl- or cup-shaped configuration, and includes a radially inner contact area with which the decoupling element is radially inwardly placeable against the fuel injector. At least one further decoupling element is provided that has a bowl-shaped or cup-shaped configuration and is in direct contact with the other decoupling element. The fuel injection device is particularly suited for the direct injection of fuel into a combustion chamber of a mixture-compressing spark ignition internal combustion engine.
    Type: Application
    Filed: October 9, 2018
    Publication date: April 11, 2019
    Inventors: Dietmar Schmieder, Corren Heimgaertner
  • Patent number: 10012178
    Abstract: An injector, in particular a blow-in injector for gaseous fuel, including a first sealing element and a second sealing element, and in the closed state of the injector a first sealing region is configured between the first and second sealing element, at least one of the sealing elements having an elastic deformation region, the elastic deformation region being set apart from the sealing region between the first and second sealing element.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: July 3, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Martin Mueller, Sven Krissler, Olaf Schoenrock, Hagen Kuckert, Andreas Vogt
  • Patent number: 9976531
    Abstract: A valve for metering a flowing, e.g. gaseous or liquid, medium, in particular a fuel injection valve for internal combustion engines, is described, which valve comprises a valve housing having an inflow for the medium, a valve body having a metering opening for the medium, a join present between the valve housing and valve body, and a seal sealing the join. In order to ensure a seal that is reliable and not susceptible to cracking, in which context the material of the valve housing and valve body can be selected without restriction, the seal has a clamping ring, covering the join, that sits with a press fit on end portions, facing toward one another at the join, of the valve housing and valve body.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 22, 2018
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Thomas Sebastian
  • Publication number: 20180093210
    Abstract: A filter, including a plurality of annularly closed disks having a through-opening. The disks include at least one contact area projecting from a lateral surface for a contact with an adjoining disk, and radial flow-through areas adjoining the contact area, and the disks being situated as a disk stack.
    Type: Application
    Filed: April 20, 2016
    Publication date: April 5, 2018
    Inventors: Dietmar Schmieder, Andreas Jakobi, Henning Kreschel, Martin Mueller, Thomas Sebastian, Tilo Landenfeld, Wolfgang Stoecklein
  • Patent number: 9709181
    Abstract: An assembly includes: a first component; a second component enclosed by the first component; a diaphragm that covers a radial gap between the first and second components and is fixed in each case in a sealed manner; and a volume of a medium that is enclosed by the first and second components and the diaphragm. For the purpose of achieving a simple filling process of the assembly with the medium at a reliable sealing of the enclosed volume, even in the case of high, swelling pressures acting upon the assembly, in one of the components a filling valve is situated that opens towards the volume, which filling valve is situated as a check valve having spring resetting in a filling channel running in the component.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: July 18, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Juergen Kraus, Dietmar Schmieder, Tilo Landenfeld, Juergen Ebert
  • Patent number: 9695955
    Abstract: A valve for metering fluid under pressure includes: a valve housing having an inlet opening and a metering opening for the fluid; an outward-opening valve needle pressure equalized via an elastic hollow body which is subject to the fluid pressure; and an electromagnet which lifts the valve needle up from the metering opening against the force of a valve closing spring. The valve housing is assembled from a valve tube and one valve body on the metering end and another on the inlet end, each being connected in a fluid-tight manner to the valve tube at the tube ends. The magnet pot including the enclosed solenoid coil is secured on the valve tube on the outside by the electromagnet, and the magnetic core is secured on the valve tube on the inside in such a way that it surrounds a needle section of the valve needle.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: July 4, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Dietmar Schmieder, Tilo Landenfeld
  • Patent number: 9624886
    Abstract: A hydraulic coupling is specified, particularly for fuel injectors, which has a housing pot having a pot bottom and a lateral pot surface, a piston guided axially displaceably in the housing pot, a fluid-filled coupling gap that is provided between the piston and the pot bottom, diaphragm situated on the outer side of the housing pot facing away from the piston, a compensation chamber that is bordered by the diaphragm and flow-connected to the coupling gap, and a spring element acting upon the diaphragm with an axially directed spring force. In order to achieve a low overall stiffness of the hydraulic coupling at the required specified coupling force, the spring element is developed as a spring bracket fixed to the housing pot, which lies against the diaphragm with axial prestressing in the region of the pot bottom.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: April 18, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Thomas Sebastian, Andreas Jakobi
  • Patent number: 9567957
    Abstract: A valve for metering a fluid (liquid or gaseous medium), in particular, a fuel injector for internal combustion engines, having a valve housing, an actuator accommodated in the valve housing and acting on a valve member, an electrical connector accessible on the outside of the valve housing, and an electrical supply lead that produces an electrical connection from the connector to the actuator and has two lead strands, each having a flexible strand section.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: February 14, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Thomas Sebastian
  • Patent number: 9470198
    Abstract: A valve for metering fluid having a valve assembly which meters the fluid, and a hydraulic coupler assigned to the valve assembly. The coupler has a housing cup having a cup bottom, cup wall and cup opening; a piston is guided inside the housing cup in axially displaceable manner and delimits a fluid-filled coupler gap in the direction of the cup bottom and delimits an annular gap in the direction of the cup wall; and a cap-shaped diaphragm having a cap bottom and cap shell, which covers the annular gap at the cup opening by the cap bottom and overlaps the cup wall of the housing cup by the cap shell, and is fixed in place at the piston and cup wall in fluid-tight manner.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: October 18, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Thomas Koch, Dietmar Schmieder
  • Patent number: 9382884
    Abstract: A valve for metering fluid under pressure includes: a valve housing which has an inlet opening and a metering opening as well as a valve seat enclosing the metering opening having an outwardly pointing seat surface; a valve needle carrying a closing head; a valve-closing spring acting on the valve needle and applying the closing head to the valve seat; and an electrical actuator, which applies a compressive force to the valve needle, lifting the closing head outwardly away from the valve seat. To prevent transverse forces on the valve needle, which can cause a deflection of the valve needle, a gimbal-mounted spring disk, which is pushed onto the valve needle, is used as the valve-closing spring.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: July 5, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Tilo Landenfeld
  • Patent number: 9291137
    Abstract: A device for holding down a valve for metering fuel in the cylinder head of an internal combustion engine is provided. The valve is inserted for fuel supply, using a connection piece, into a sealing region which presses against the connection piece at an outlet opening of a manifold fixed to the cylinder head. Between a first support shoulder on the side of the valve and a second support shoulder on the side of the manifold, the device has a clamped spring element for transferring a holding-down force onto the valve. In order to achieve an inward deflection of the spring element required for the transfer of the holding-down force, the spring element is prestressed to a prestressing force that is reduced with respect to the holding-down force, and the prestressed spring element is fixed on the valve.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: March 22, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Tilo Landenfeld
  • Patent number: 9273784
    Abstract: A valve for metering fluid includes: a piezoelectric actuator for metering control; two electrical connection elements for applying an electrical control voltage; and a discharge resistor integrated into the actuator, which resistor bridges the two connection elements.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: March 1, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Timo Kegel
  • Publication number: 20150377185
    Abstract: An injector, in particular a blow-in injector for gaseous fuel, including a first sealing element and a second sealing element, and in the closed state of the injector a first sealing region is configured between the first and second sealing element, at least one of the sealing elements having an elastic deformation region, the elastic deformation region being set apart from the sealing region between the first and second sealing element.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 31, 2015
    Inventors: Dietmar SCHMIEDER, Martin Mueller, Sven Krissler, Olaf Schoenrock, Hagen Kuckert, Andreas Vogt
  • Patent number: 9091237
    Abstract: An injector for a fluid, particularly for fuel, is provided having a valve housing, a fluid intake, a valve chamber having a spray-discharge orifice, a piezoelectric or magnetostrictive actuator situated in the valve housing and a fluid-guiding pipe connecting a fluid intake and a valve chamber, which is situated in the valve housing running along the actuator. In order to create structural space in the valve housing for guiding through the fluid-guiding pipe which has a sufficiently large diameter for reducing pressure drops in the intake region, a hollow cylinder surrounding the actuator and developed as a prestressed spring is provided with a cylinder wall opening that extends axially through the entire length, and the positioning of the fluid-guiding pipe in the valve housing is undertaken so that it extends radially into the cylinder wall opening.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 28, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Dietmar Schmieder, Andreas Jakobi
  • Publication number: 20150059882
    Abstract: An assembly includes: a first component; a second component enclosed by the first component; a diaphragm that covers a radial gap between the first and second components and is fixed in each case in a sealed manner; and a volume of a medium that is enclosed by the first and second components and the diaphragm. For the purpose of achieving a simple filling process of the assembly with the medium at a reliable sealing of the enclosed volume, even in the case of high, swelling pressures acting upon the assembly, in one of the components a filling valve is situated that opens towards the volume, which filling valve is situated as a check valve having spring resetting in a filling channel running in the component.
    Type: Application
    Filed: February 18, 2013
    Publication date: March 5, 2015
    Inventors: Juergen Kraus, Dietmar Schmieder, Tilo Landenfeld, Juergen Ebert
  • Publication number: 20150048265
    Abstract: A hydraulic coupling is specified, particularly for fuel injectors, which has a housing pot having a pot bottom and a lateral pot surface, a piston guided axially displaceably in the housing pot, a fluid-filled coupling gap that is provided between the piston and the pot bottom, diaphragm situated on the outer side of the housing pot facing away from the piston, a compensation chamber that is bordered by the diaphragm and flow-connected to the coupling gap, and a spring element acting upon the diaphragm with an axially directed spring force. In order to achieve a low overall stiffness of the hydraulic coupling at the required specified coupling force, the spring element is developed as a spring bracket fixed to the housing pot, which lies against the diaphragm with axial prestressing in the region of the pot bottom.
    Type: Application
    Filed: September 25, 2012
    Publication date: February 19, 2015
    Inventors: Dietmar Schmieder, Thomas Sebastian, Andreas Jakobi