Patents by Inventor Frank Nitsche
Frank Nitsche 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: 11261853Abstract: A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.Type: GrantFiled: June 7, 2018Date of Patent: March 1, 2022Assignee: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Andreas Plisch, Dietmar Uhlenbrock, Olaf Schoenrock, Jurij Giesler, Ekrem Cakir
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Patent number: 11168677Abstract: A piston pump, in particular high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston and a conveying chamber defined at least by the pump piston and the pump housing. A seal for sealing the conveying chamber and a separate guide element for guiding the pump piston may be arranged between the pump piston and the pump housing. The seal is designed as a metal sleeve, and may have a radially outwardly projecting web.Type: GrantFiled: June 7, 2018Date of Patent: November 9, 2021Assignee: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Olaf Schoenrock, Jurij Giesler, Andreas Plisch, Dietmar Uhlenbrock, Ekrem Cakir
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Patent number: 10890167Abstract: The invention relates to a method for operating a piston pump, which is driven by means of a coil (1) of an electromagnet, wherein a piston (2) of the piston pump can be moved against a restoring force by means of the electromagnet, wherein a voltage (U) is applied to the coil (1) during a switch-on duration such that a current (I) flows through the coil (1) and the piston (2) is accelerated, wherein two different quenching methods are used for the current (I) in the coil (1).Type: GrantFiled: September 2, 2015Date of Patent: January 12, 2021Assignee: Robert Bosch GmbHInventors: Frank Nitsche, Thorsten Allgeier, Walter Maeurer
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Publication number: 20200224646Abstract: A piston pump, in particular high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston and a conveying chamber defined at least by the pump piston and the pump housing. A seal for sealing the conveying chamber and a separate guide element for guiding the pump piston may be arranged between the pump piston and the pump housing. The seal is designed as a metal sleeve, and may have a radially outwardly projecting web.Type: ApplicationFiled: June 7, 2018Publication date: July 16, 2020Inventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Olaf Schoenrock, Jurij Giesler, Andreas Plisch, Dietmar Uhlenbrock, Ekrem Cakir
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Publication number: 20200191129Abstract: A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.Type: ApplicationFiled: June 7, 2018Publication date: June 18, 2020Inventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Andreas Plisch, Dietmar Uhlenbrock, Olaf Schoenrock, Jurij Giesler, Ekrem Cakir
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Patent number: 10619628Abstract: The present invention relates to a fuel pump (1) which comprises a pump housing (2), a delivery element (3) for delivering fuel, a heat-generating actuator (4) for actuating the delivery element (3), a first fuel path (5) which leads from an inlet (20) to a delivery space (7), and a second fuel path (6) which leads from the inlet (20) past the heat-generating actuator (4) to a first housing opening (21), wherein the first housing opening (21) is arranged above the inlet (20) in the vertical direction (V). The present invention also relates to a fuel pump arrangement which comprises a fuel pump (1) according to the invention and a fuel tank (10) in which the fuel pump (1) is at least partially and preferably entirely arranged. The present invention also relates to a method for operating a fuel pump (1).Type: GrantFiled: September 2, 2015Date of Patent: April 14, 2020Assignee: Robert Bosch GmbhInventors: Andreas Plisch, Frank Nitsche, Joerg Heyse, Siamend Flo, Thorsten Allgeier, Walter Maeurer, Tim Reule
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Patent number: 10443587Abstract: A high-pressure fuel pump includes a pump housing with a housing wall and a damping device configured to damp inlet-side pressure pulses by varying a damping volume with an elastically deformable wall. At least one section of the elastically deformable wall is formed from one or more of at least one part of a jacket-like area of the housing wall and at least one part of a sealing support. The section is embodied such that it includes at least one main part configured to vary the damping volume.Type: GrantFiled: May 13, 2014Date of Patent: October 15, 2019Assignee: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Thorsten Allgeier, Juergen Koreck, Andreas Plisch, Gerd Teike
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Publication number: 20180340522Abstract: The invention relates to a method for operating a piston pump, which is driven by means of a coil (1) of an electromagnet, wherein a piston (2) of the piston pump can be moved against a restoring force by means of the electromagnet, wherein a voltage (U) is applied to the coil (1) during a switch-on duration such that a current (I) flows through the coil (1) and the piston (2) is accelerated, wherein two different quenching methods are used for the current (I) in the coil (1).Type: ApplicationFiled: September 2, 2015Publication date: November 29, 2018Inventors: Frank Nitsche, Thorsten Allgeier, Walter Maeurer
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Publication number: 20170268469Abstract: The present invention relates to a fuel pump (1) which comprises a pump housing (2), a delivery element (3) for delivering fuel, a heat-generating actuator (4) for actuating the delivery element (3), a first fuel path (5) which leads from an inlet (20) to a delivery space (7), and a second fuel path (6) which leads from the inlet (20) past the heat-generating actuator (4) to a first housing opening (21), wherein the first housing opening (21) is arranged above the inlet (20) in the vertical direction (V). The present invention also relates to a fuel pump arrangement which comprises a fuel pump (1) according to the invention and a fuel tank (10) in which the fuel pump (1) is at least partially and preferably entirely arranged. The present invention also relates to a method for operating a fuel pump (1).Type: ApplicationFiled: September 2, 2015Publication date: September 21, 2017Inventors: Andreas Plisch, Frank Nitsche, Joerg Heyse, Siamend Flo, Thorsten Allgeier, Walter Maeurer, Tim Reule
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Publication number: 20170254317Abstract: The invention relates to a piston pump, in particular for injection systems for motorized two-wheeled vehicles and/or for motorized three-wheeled vehicles, which piston pump comprises a housing, at least one magnetic coil, a cylinder, a piston arranged in the cylinder, and an armature plate having a stop for the piston, wherein the piston can be moved in the direction of the stop by a magnetic field produced by the magnetic coil, and wherein a magnetic circuit can be formed in the piston pump on the basis of the magnetic field, wherein in particular the piston, the cylinder, the housing, the armature plate, and the stop are components of the magnetic circuit, wherein at the stop-side reversal point of the piston, in particular when the piston hits the stop, the magnetic circuit has at least one region that has a non-magnetic material, in particular having a relative permeability ?r of not greater than 1.1.Type: ApplicationFiled: August 13, 2015Publication date: September 7, 2017Inventors: Andreas Plisch, Frank Nitsche, Siamend Flo, Thorsten Allgeier, Walter Maeurer
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Publication number: 20160131120Abstract: A high-pressure fuel pump includes a pump housing with a housing wall and a damping device configured to damp inlet-side pressure pulses by varying a damping volume with an elastically deformable wall. At least one section of the elastically deformable wall is formed from one or more of at least one part of a jacket-like area of the housing wall and at least one part of a sealing support. The section is embodied such that it includes at least one main part configured to vary the damping volume.Type: ApplicationFiled: May 13, 2014Publication date: May 12, 2016Applicant: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Thorsten Allgeier, Juergen Koreck, Andreas Plisch, Gerd Teike
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Publication number: 20150285164Abstract: A fuel system for an internal combustion engine is configured to operate with at least two fuel types, and includes an electrically driven high-pressure fuel pump for at least one of the two fuel types. The high-pressure fuel pump is connected on an outlet side to a high-pressure line which is common to the two fuel types.Type: ApplicationFiled: October 18, 2012Publication date: October 8, 2015Inventors: Alexander Gluschke, Frank Nitsche, Martin Maier, Winfried Langer, Peter Schenk, Thorsten Allgeier, Henri Barbier
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Patent number: 9039539Abstract: An arrangement transmits a torque between a shaft and a hub. The hub has at least approximately the interior geometry of an equilateral n-sided polygon, the side surfaces of which at least approximately bear against a clutch portion, which is of circular overall cross section, of the shaft, and wherein the shaft has at least one driver portion which is rotationally conjoint with respect to the clutch portion and which extends in the direction of a corner of the n-sided polygon.Type: GrantFiled: August 30, 2011Date of Patent: May 26, 2015Assignee: Robert Bosch GmbHInventors: Siamend Flo, Frank Nitsche, Juergen Arnold
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Patent number: 8985186Abstract: A piston for an internal combustion engine includes a mostly linearly displaceable sleeve for forming at least one piston pin bore and at least one slider that can be displaced at least mostly linearly and diagonally to the sleeve for forming at least one recess under a ring zone of the piston. The sleeve and the slider are at least indirectly coupled, such that the sleeve at least partially carries the slider when displaced. A method for opening and/or closing a casting device for a piston for an internal combustion engine, wherein a mostly linearly displaceable sleeve at least partially carries a slider that can be displaced mostly linearly and diagonally to the sleeve.Type: GrantFiled: November 18, 2011Date of Patent: March 24, 2015Assignee: Federal-Mogul Nurnberg GmbHInventors: Frank Nitsche, Achim Jager
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Publication number: 20140305409Abstract: A fuel system comprises a first reservoir for a first fuel in liquid phase that has a first vapor pressure, and a second reservoir for a second fuel in liquid phase that has a second vapor pressure. The second vapor pressure is higher than the first vapor pressure. The fuel system further includes a mixing device for mixing the first fuel in liquid phase with the second fuel in liquid phase, and an injector which is hydraulically connected to the mixing device and is configured so that as, or immediately after, the mixture passes through an outlet opening of the injector, the second fuel changes from the liquid phase to a gaseous phase.Type: ApplicationFiled: October 18, 2012Publication date: October 16, 2014Inventors: Stefan Arndt, Siamend Flo, Alexander Gluschke, Frank Nitsche, Thorsten Allgeier, Martin Maier, Roman Grzeszik, Henri Barbier, Andreas Herzig, Winfried Langer, Guenther Hohl, Juergen Arnold
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Publication number: 20130284393Abstract: The invention relates to a casting device for a piston for an internal combustion engine, having at least one at least mostly linearly displaceable sleeve for forming at least one piston pin bore and at least one slider that can be displaced at least mostly linearly and diagonally to the sleeve for forming at least one recess under a ring zone of the piston, characterized in that the sleeve and the slider are at least indirectly coupled, such that the sleeve at least partially carries the slider when displaced. The invention further relates to a method for opening and/or closing a casting device for a piston for an internal combustion engine, wherein that east one mostly linearly displaceable sleeve at least partially carriers at least one slider that can be displaced mostly linearly and diagonally to the sleeve.Type: ApplicationFiled: November 18, 2011Publication date: October 31, 2013Inventors: Frank Nitsche, Achim Jager
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Publication number: 20130281220Abstract: An arrangement transmits a torque between a shaft and a hub. The hub has at least approximately the interior geometry of an equilateral n-sided polygon, the side surfaces of which at least approximately bear against a clutch portion, which is of circular overall cross section, of the shaft, and wherein the shaft has at least one driver portion which is rotationally conjoint with respect to the clutch portion and which extends in the direction of a corner of the n-sided polygon.Type: ApplicationFiled: August 30, 2011Publication date: October 24, 2013Applicant: Robert Bosch GmbHInventors: Siamend Flow, Frank Nitsche, Juergen Arnold
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Publication number: 20050256929Abstract: The present invention relates generally to the field of automated screening systems that assist in screening the content of message data prior to public posting of the messages. More specifically, the present invention is directed to systems and methods for enhancing the screening of messages that are posted to on-line guest books and message boards associated with on-line obituaries and the like in order to substantially reduce and/or eliminate the posting of messages with inappropriate or undesirable content.Type: ApplicationFiled: April 9, 2004Publication date: November 17, 2005Inventors: Christopher Bartol, Elizabeth Ferguson, Jeffrey Mills, Frank Nitsche