Apr 10, 2013 - Hung Nguyen-Schäfer has filed for patents to protect the following .... Inventors: Waldemar Hans, Ian Faye, Frank Brenner, Frank Miller, Martin ...
Patents by Inventor Hung Nguyen-Schäfer Hung Nguyen-Schäfer 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).
Radial bearing
Patent number: 9279453 Abstract: A radial bearing may include a bearing body, which includes a receiving space for a shaft to be arranged therein. The bearing body may have an inner wall facing the receiving space, in which transverse grooves running in an axial direction and separated from one another in a circumferential direction by separating portions are formed. The radial bearing may include a supply channel penetrating the bearing body provided in at least one separating portion. The at least one separating portion may have at least one oil pocket spaced from the associated supply channel. Type: Grant Filed: April 10, 2013 Date of Patent: March 8, 2016 Assignee: Bosch Mahle Turbo Systems GmBH & Co. KG Inventors: Jochen Laubender, Thanh-Hung Nguyen-Schaefer
ROLLING BEARING ASSEMBLY OF AN EXHAUST GAS TURBOCHARGER
Publication number: 20150233382 Abstract: A rolling bearing assembly for a rotor of a turbine includes a bearing housing and a bearing cartridge. The bearing cartridge may include an outer shell and an inner shell arranged concentrically thereto. The outer and inner shell may be rotatably mounted on one another about a concentric axis of rotation in two bearing sections axially spaced from one another via rolling bodies. The inner shell may be arranged on a rotor shaft and in the region of the bearing sections includes an inner press fit region. The outer shell may be arranged in the bearing housing and have axially spaced from the bearing sections at least one outer press fit region. In the respective bearing sections an oil damping ring channel may be radially formed between the bearing housing and the outer shell. The oil damping ring channel may extend coaxially to the axis of rotation. Type: Application Filed: August 2, 2012 Publication date: August 20, 2015 Inventor: Thanh-Hung Nguyen-Schaefer
RADIAL BEARING
Publication number: 20150078690 Abstract: A radial bearing may include a bearing body, which includes a receiving space for a shaft to be arranged therein. The bearing body may have an inner wall facing the receiving space, in which transverse grooves running in an axial direction and separated from one another in a circumferential direction by separating portions are formed. The radial bearing may include a supply channel penetrating the bearing body provided in at least one separating portion. The at least one separating portion may have at least one oil pocket spaced from the associated supply channel. Type: Application Filed: April 10, 2013 Publication date: March 19, 2015 Inventors: Jochen Laubender, Thanh-Hung Nguyen-Schaefer
Charging device
Patent number: 8894285 Abstract: A charging device may include a shaft rotatably mounted on at least one slide bearing in a shaft bearing region. At least one flow opening for introducing and discharging a fluid may be defined on the shaft bearing region, wherein the shaft in the shaft bearing region may have two outer portions each running in a circumferential direction and axially binding an inner portion. At least one of the outer portions on its surface may include at least one microstructure. Type: Grant Filed: November 30, 2012 Date of Patent: November 25, 2014 Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG Inventors: Thanh-Hung Nguyen-Schaefer, Heinz Bernd Haiser, Martin Knopf
EXHAUST GAS TURBOCHARGER
Publication number: 20140234075 Abstract: An exhaust gas turbocharger may include a shaft mounted in a bearing housing carrying a compressor wheel and a turbine wheel. The shaft may include a sealing bush arranged on the shaft in a rotationally fixed manner. The sealing bush together with a bearing housing cover may at least partially delimit an annular oil centrifuging space arranged coaxially to the sealing bush. The bearing housing cover may include a guiding nib located radially outside the sealing bush partially covering
the sealing bush in axial direction. The guiding nib may be configured to guide oil separated in the oil centrifuging space onto the rotating sealing bush. The rotating sealing bush may be configured to direct the oil into the oil centrifuging space in response to centrifugal force creating an oil swirl. Type: Application Filed: February 20, 2014 Publication date: August 21, 2014 Applicant: Bosch Mahle Turbo Systems GmbH & Co. KG Inventors: Friedemann Weber, Thomas Berger, Thanh-Hung Nguyen-Schaefer, Christoph Butscher, Jasmin Hausser, Andreas Fath
Exhaust gas turbo-charger
Patent number: 8491271 Abstract: In an exhaust-gas turbocharger with a shaft axially arranged between a compressor wheel and a turbine wheel and connected in a rotationally fixed manner to the compressor wheel as well as to the turbine wheel, said shaft being rotationally mounted with a turbine-side shaft part in a turbine-side bearing, a connecting region with minimal heat conductivity is axially arranged or configured between the turbineside shaft part and the turbine wheel in such a manner that the heat flow emanating from the turbine wheel is choked. Type: Grant Filed: August 14, 2009 Date of Patent: July 23, 2013 Assignee: Bosch Mahle Turbo Systems GmbH Co. KG Inventors: Joerg Jennes, Thanh-Hung Nguyen-Schaefer, Stefan Muenz
EXHAUST GAS TURBOCHARGER WITH PLAIN BEARING FOR REDUCING FLUID TURBULENCE
Publication number: 20130129506 Abstract: An exhaust-gas turbocharger may include a rotor shaft arranged with at least one bearing-shaft portion in a radial bearing. The radial bearing may be a plain bearing configured to slide on a fluid film. The at least one bearing-shaft portion may be subdivided into two outer segments by an inner segment. The two outer segments may be arranged on the respective axial end region of the radial bearing and the inner segment may be positioned between the outer segments. The inner segment may be arranged in the area of an opening of a fluid channel. The turbocharger may include at least one transverse groove running inclined relative to the circumferential direction of the rotor shaft arranged in at least in one of the outer segments. The at least one
transverse groove may include a groove depth having a continuously decreasing development in a fluid flow direction. Type: Application Filed: May 25, 2011 Publication date: May 23, 2013 Applicant: Bosch Mahle Turbo Systems GmbH & Co. KG Inventor: Thanh-Hung Nguyen-Schaefer
Fuel cell system with a metering unit
Patent number: 8124286 Abstract: The invention relates to a fuel cell installation comprising a fuel cell unit (6). Said installation is also provided with a dosing unit (8) which comprises at least one dosing valve (7) and is used to dose a fuel (10) for at least one anode (12) of the fuel cell unit (6), and a starting valve for dosing the fuel (10) for at least one cathode (19) of the fuel cell unit (6) during a starting phase. The aim of the invention is to be able to produce and operate one such fuel cell installation in an economical manner. To this end, at least one throttle element (18) comprising a fixed internal crosssectional area is used to fix the maximum quantity of fuel that can be dosed in the starting phase. Type: Grant Filed: November 17, 2006 Date of Patent: February 28, 2012 Assignees: Robert Bosch GmbH, GM Global Technology Operations, Inc. Inventors: Thanh-Hung Nguyen-Schaefer, Frank Brenner, Guenther Bantleon, JensUwe Sparschuh, Thomas Hebner
EXHAUST GAS TURBO-CHARGER
Publication number: 20100050633 Abstract: In an exhaust-gas turbocharger with a shaft axially arranged between a compressor wheel and a turbine wheel and connected in a rotationally fixed manner to the compressor wheel as well as to the turbine wheel, said shaft being rotationally mounted with a turbine-side shaft part in a turbine-side bearing, a connecting region with minimal heat conductivity is axially arranged or configured between the turbineside shaft part and the turbine wheel in such a manner that the heat flow emanating from the turbine wheel is choked. Type: Application
Filed: August 14, 2009 Publication date: March 4, 2010 Inventors: Joerg Jennes, Thanh-Hung Nguyen-Schaefer, Stefan Muenz
FUEL CELL ASSEMBLY
Publication number: 20090305100 Abstract: The present invention relates to a fuel cell assembly having a fuel cell and an actuating element, which is activated by a control unit, for bringing residual gas out of a fuel flow of the fuel cell. The invention is provided with the control unit having an open-loop and/or closed-loop control system which takes into consideration the fuel concentration in the fuel flow. Type: Application Filed: March 20, 2007 Publication date: December 10, 2009 Inventors: Ian Faye, Thanh-Hung Nguyen-Schaefer, Ulrich Gottwick
Pulse Supercharger in the Intake Tract of an Internal Combustion Engine
Publication number: 20080289610 Abstract: A pulse supercharger for internal combustion engines, in which the pulse supercharger is situated in a charge air duct. The flow cross-section of the charge air duct for a charge air flow is opened or closed via the pulse supercharger. The pulse supercharger includes two synchronously operatable rotary slide elements. Type: Application Filed: May 3, 2005 Publication date: November 27, 2008 Applicant: ROBERT BOSCH GMBH Inventors: Thanh-Hung Nguyen-Schaefer, Johannes Meiwes, Michael Baeuerle, Udo Sieber, Ralph Engelberg
Fuel cell apparatus with pressurized fuel tank and pressure-reducing unit for supplying fuel at a reduced operating pressure
Patent number: 7214438 Abstract: The fuel cell apparatus has a fuel cell (1), a pressurized fuel tank (2) for supplying fuel at a supply pressure and a pressure-reducing unit (4) for reducing the supply pressure to an operating pressure of the fuel cell. In order to improve the
overall efficiency of the unit in comparison to the art the pressure-reducing unit (4) is constructed as a cooling apparatus for cooling at least one cooling element, preferably a condenser (5). Type: Grant Filed: July 29, 2003 Date of Patent: May 8, 2007 Assignee: Robert Bosch GmbH Inventors: Ian Faye, Thanh-Hung Nguyen-Schaefer, Rainer Saliger, Jan-Michael Graehn
Pressure regulator module for controlling a gas
Patent number: 7143782 Abstract: A pressure regulator module for controlling a gas is provided, which includes a chamber, at least one gas inlet, and at least one gas outlet. In addition, a proportional valve operating essentially according to the pressure-equalization principle is post-connected to the gas inlet and is pre-connected to the chamber, and the proportional valve acts together with a pressure sensor situated in the chamber. Type: Grant Filed: October 5, 2004 Date of Patent: December 5, 2006 Assignee: Robert Bosch GmbH Inventors: Guenther Bantleon, Thanh-Hung Nguyen-Schaefer
Valve for controlling a fluid
Publication number: 20060231785 Abstract: A valve for controlling a fluid, in particular for controlling a gas, is described, encompassing a valve housing an actuation unit for an at least locally tubular valve armature which is guided axially displaceably and is equipped with a valve closure member by which a fluid flow between an inflow side and an outlet side is controllable and which coacts with a valve seat. The valve armature comprises a guidance collar in a region remote from the valve closure member, and is equipped with a second guidance in a region offset with respect to the guidance collar. Type: Application Filed: December 9, 2003
Publication date: October 19, 2006 Inventors: Waldemar Hans, Ian Faye, Frank Brenner, Frank Miller, Martin Maier, Guenther Bantleon, Thanh-Hung Nguyen-Schaefer, Thomas Hebner, Kai Kroeger
Valve for controlling a fluid
Patent number: 7111822 Abstract: A valve for controlling a fluid, in particular for controlling a gas. The valve includes a valve housing which accommodates an electromagnetic actuating unit for a solenoid armature which is guided axially displaceably in the valve housing and which cooperates with a valve seat via a valve-closing member, so that a fluid stream from an inflow side to an outflow side of the valve is controllable. At least one lubricant chamber adjacent to the guide gap between the valve housing and the solenoid armature is provided. Type: Grant Filed: September 20, 2004 Date of Patent: September 26, 2006 Assignee: Robert Bosch GmbH Inventors: Gerd Dornhoefer, Guenther Bantleon, Thanh-Hung Nguyen-Schaefer, Martin Moeller, Thomas Hebner
Fuel cell system with a recirculating operating material
Publication number: 20060194091 Abstract: A fuel cell system has a fuel cell unit including an anode, and a recirculation unit for recirculating hydrogenous operating material flowing out of the fuel cell unit back into the fuel cell unit, wherein the recirculation unit has at least one drive unit for driving a flow of an operating material, and the drive unit is configured as a pneumatic drive unit or hydraulic drive unit for utilizing an energy of a fluid. Type: Application Filed: February 23, 2006 Publication date: August 31, 2006 Inventors: Willi Strohl, Guenther Bantleon, Thanh-Hung Nguyen-Schaefer, Klaus Reymann, Michael Baeuerle, Helmut Schneider, Gunter Winkler, Thomas Heid
Device for mixing fluids
Patent number: 6994276
Abstract: A device for mixing fluids, in particular a gas injection valve, nozzle valve, mixing nozzle or jet compressor, is proposed. To that end, a first fluid-carrying device (12) for carrying a first fluid and a second fluid-carrying device (13) for carrying a second fluid are provided; the fluids are mixed with one another in a mixing region (16) that is in communication with the fluid-carrying devices (12, 13). In addition, a means (20) for generating turbulence in the applicable fluid and a heater, with which the fluid can be heated before reaching the mixing region (16), disposed downstream of the means (20) for generating turbulence in terms of the flow direction of the applicable fluid are associated with at least one of the fluid-carrying devices (12, 13). The proposed device is used in particular for mixing hydrogen and saturated steam and to deliver this mixture to a fuel cell. Type: Grant Filed: July 24, 2002 Date of Patent: February 7, 2006 Assignee: Robert Bosch GmbH Inventors: Ian Faye, Thanh-Hung Nguyen-Schaefer
Pressure regulator module for controlling a gas
Publication number: 20050092369 Abstract: A pressure regulator module for controlling a gas is provided, which includes a chamber, at least one gas inlet, and at least one gas outlet. In addition, a proportional valve operating essentially according to the pressure-equalization principle is post-connected to the gas inlet and is pre-connected to the chamber, and the proportional valve acts together with a pressure sensor situated in the chamber. Type: Application Filed: October 5, 2004 Publication date: May 5, 2005 Inventors: Guenther Bantleon, Thanh-Hung Nguyen-Schaefer
Valve for controlling a fluid
Publication number: 20050087714 Abstract: A valve for controlling a fluid, in particular for controlling a gas. The valve includes a valve housing which accommodates an electromagnetic actuating unit for a solenoid armature which is guided axially displaceably in the valve housing and which cooperates with a valve seat via a valve-closing member, so that a fluid stream from an inflow side to an outflow side of the valve is controllable. At least one lubricant chamber adjacent to the guide gap between the valve housing and the solenoid armature is provided.
Type: Application Filed: September 20, 2004 Publication date: April 28, 2005 Inventors: Gerd Dornhoefer, Guenther Bantleon, Thanh-Hung Nguyen-Schaefer, Martin Moeller, Thomas Hebner
Device for mixing fluids
Publication number: 20040056112 Abstract: A device for mixing fluids, in particular a gas injection valve, nozzle valve, mixing nozzle or jet compressor, is proposed. To that end, a first fluid-carrying device (12) for carrying a first fluid and a second fluid-carrying device (13) for carrying a second fluid are provided; the fluids are mixed with one another in a mixing region (16) that is in communication with the fluid-carrying devices (12, 13). In addition, a means (20) for generating turbulence in the applicable fluid and a heater, with which the fluid can be heated before reaching the mixing region (16), disposed downstream of the means (20) for generating turbulence in terms of the flow direction of the applicable fluid are associated with at least one of the fluid-carrying devices (12, 13). The proposed device is used in particular for mixing hydrogen and saturated steam and to deliver this mixture to a fuel cell. Type: Application Filed: August 4, 2003 Publication date: March 25, 2004 Inventors: Ian Faye, Thanh-Hung Nguyen-Schaefer
Patents by Inventor Thanh-Hung Nguyen-Schaefer Thanh-Hung Nguyen-Schaefer 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).
Fuel cell apparatus with pressurized fuel tank and pressure-reducing unit for supplying fuel at a reduced operating pressure
Publication number: 20040033402 Abstract: The fuel cell apparatus has a fuel cell (1), a pressurized fuel tank (2) for supplying fuel at a supply pressure and a pressure-reducing unit (4) for reducing the supply pressure to an operating pressure of the fuel cell. In order to improve the overall efficiency of the unit in comparison to the art the pressure-reducing unit (4) is constructed as a cooting apparatus for cooling at least one cooling element, preferably a condenser (5).
Type: Application Filed: July 29, 2003 Publication date: February 19, 2004 Inventors: Ian Faye, Thanh-Hung Nguyen-Schaefer, Rainer Saliger, Jan-Michael Graehn
Fuel cell device
Publication number: 20030170514 Abstract: A fuel cell device has a fuel cell unit, a conversion unit for converting material mixtures to a hydrogen-containing fluid stream, a separation device for separating at least one hydrogen-enriched material stream from a fluid residual stream, the separation device being formed as a mass separation device for separating different masses. Type: Application Filed: February 14, 2003 Publication date: September 11, 2003 Inventors: Ian Faye, Frank Brenner, Hans-Ruediger Weiss, Thanh-Hung NguyenSchaefer, Rainer Saliger, Thomas Hebner
Fuel injection device
Patent number: 5662277 Abstract: A fuel injection device having an injection valve on which an atomizing grid is arranged. The disk-shaped atomizing grid is arranged downstream of a valve seat face and is equipped with an atomizing structure which at least partially possesses variations in cross section in the axial direction, over the thickness of the atomizing grid. As a result of the geometry of the atomizing grid, the fuel is atomized particularly finely into very small droplets without auxiliary energy. The fuel injection device is particularly suitable for use in fuel injection systems of mixture-compressing spark-ignition internal combustion engines. Type: Grant Filed: October 2, 1995 Date of Patent: September 2, 1997 Assignee: Robert Bosch GmbH Inventors: Bernd Taubitz, Michael Mettner, Thanh-Hung Nguyen-Schaefer
Liquid pump
Patent number: 5558490 Abstract: In a liquid pump of the side channel type, particularly an electric fuel pump, comprising a suction cover (11) having an inlet aperture (12), an intermediate casing (13) having an outlet aperture (14), and a pump impeller (15) enclosed therebetween, and also comprising concentric side channels (21, 22) which are formed in mutually oppositely situated surfaces (111, 131) of the suction cover (11) and intermediate casing (13) and into which lead an inlet opening (12) and an outlet opening (14) respectively, the geometry of the outlet opening (14) is selected, for the purpose of reducing noise and achieving greater smoothness of running, such that its aperture wall (141) bounding the end of the side channel (22) in the intermediate casing (13) extends outward with a concave curvature, at least in the side channel region, from the inner surface (131) of the intermediate casing (13) onward, and that on the other hand the geometry of the end of the side channel in the suction cover (11) has a configuration such tha Type: Grant Filed: October 13, 1995 Date of Patent: September 24, 1996 Assignee: Robert Bosch GmbH Inventors: Klaus Dobler, Thanh-Hung Nguyen-Schaefer, Michael Huebel
