Patents by Inventor Martin Graz
Martin Graz 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).
-
Patent number: 11697504Abstract: A battery system, in particular for an aircraft, having a housing, which is sealed gas-tight, and a cell block, which is formed from a plurality of battery cells connected electrically and mechanically by contact plates. The housing can be connected to a vacuum pump in order to generate vacuum within the housing and a vacuum prevails within the housing, wherein at least one housing side wall of the housing is flexible enough that the housing side wall is tensioned together with the cell block by the vacuum acting within the housing. A vehicle, in particular an aircraft, may be electrified, at least in part, by such a battery system.Type: GrantFiled: March 14, 2018Date of Patent: July 11, 2023Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Oliver Obrist, Martin Graz
-
Patent number: 10556493Abstract: The invention relates to a battery housing, in particular for an energy accumulator for a hybrid drive, comprising a tubular main body and at least two terminating covers, which are inserted into the main body and each have a cover plate that is offset inwards in the longitudinal direction of the main body and supports housing walls of the main body, wherein the terminating covers are each welded to the main body and all joints of the battery housing are formed without separate connecting elements.Type: GrantFiled: September 22, 2015Date of Patent: February 11, 2020Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Joachim Georg Roth, Peter Giese
-
Publication number: 20200044214Abstract: A battery system, in particular for an aircraft, having a housing, which is sealed gas-tight, and a cell block, which is formed from a plurality of battery cells connected electrically and mechanically by contact plates. The housing can be connected to a vacuum pump in order to generate vacuum within the housing and a vacuum prevails within the housing, wherein at least one housing side wall of the housing is flexible enough that the housing side wall is tensioned together with the cell block by the vacuum acting within the housing. A vehicle, in particular an aircraft, may be electrified, at least in part, by such a battery system.Type: ApplicationFiled: March 14, 2018Publication date: February 6, 2020Inventors: Frank OBRIST, Oliver OBRIST, Martin GRAZ
-
Patent number: 10403944Abstract: The invention relates to a battery system, in particular for a hybrid drive, having a housing, a plurality of battery cells arranged inside the housing and a cooling element, wherein fluid connections and at least one electrical connection are arranged on the housing, said electrical connection being electrically coupled to the battery cells, and wherein the fluid connections comprise at least one coolant inlet and at least one coolant outlet, each of which is fluidically connected to the cooling element. The invention is characterized in that the housing comprises a tubular main body, which is sealed in a fluid-tight manner by a closure cap at each of the opposite end faces thereof, wherein the electrical connection is arranged on a first closure cap and the fluid connections are arranged on a second closure cap. The invention also relates to a motor vehicle having such a battery system.Type: GrantFiled: September 22, 2015Date of Patent: September 3, 2019Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Joachim Georg Roth
-
Patent number: 10326119Abstract: The invention relates to a battery system, in particular for a hybrid drive, comprising a housing and a plurality of battery cells arranged within the housing, said cells being combined to give a cell block, wherein a container having a variable inner volume is arranged between the cell block and at least one housing wall, by means of which container the cell block can be braced relative to the housing, wherein the container is filled with a curable or cured medium.Type: GrantFiled: September 22, 2015Date of Patent: June 18, 2019Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Jochen Bont
-
Publication number: 20170352849Abstract: The invention relates to a battery system, in particular for a hybrid drive, comprising a housing and a plurality of battery cells arranged within the housing, said cells being combined to give a cell block, wherein a container having a variable inner volume is arranged between the cell block and at least one housing wall, by means of which container the cell block can be braced relative to the housing, wherein the container is filled with a curable or cured medium.Type: ApplicationFiled: September 22, 2015Publication date: December 7, 2017Inventors: Frank OBRIST, Martin GRAZ, Jochen BONT
-
Publication number: 20170331165Abstract: The invention relates to a battery system, in particular for a hybrid drive, having a housing which has a fluid connector segment, an energy store segment and an electrics/electronics segment, wherein the energy store segment has at least two cooling elements, through which a flow can pass, and at least one cell block, which are formed in each case from a plurality of battery cells that are connected electrically and mechanically by way of contact plates, and wherein the cell block is arranged between two cooling elements. The invention is characterised in that the energy store segment is arranged between the fluid connector segment and the electrics/electronics segment and has a cuboidal volume which corresponds to at least 0.5 times the total internal volume of the housing.Type: ApplicationFiled: September 22, 2015Publication date: November 16, 2017Inventors: Frank Obrist, Martin Graz, Joachim Georg Roth
-
Publication number: 20170317394Abstract: The invention relates to a heat exchanger for a battery, in particular for a hybrid drive, with connections for the inflow and outflow of a heat exchange medium and with a frame which is connected on both sides with film walls to form a pouch through which a flow can pass, wherein the frame comprises flow guiding elements The invention is characterised in that the frame comprises a separating plate with two parallel lateral surfaces, wherein the separating plate divides the pouch into a first chamber and a second chamber which are delimited in a fluid-tight manner by the lateral surfaces and the respective film walls, wherein in each of the lateral surfaces a channel field of parallel flow channels is formed, the inflow side of which is fluidically connected via a distributor channel and the outflow side of which is fluidically connected via a collecting channel to the respective connections.Type: ApplicationFiled: September 22, 2015Publication date: November 2, 2017Inventors: Frank Obrist, Martin Graz, Joachim Georg Roth, Peter Giese
-
Publication number: 20170274751Abstract: The invention relates to a battery housing, in particular for an energy accumulator for a hybrid drive, comprising a tubular main body and at least two terminating covers, which are inserted into the main body and each have a cover plate that is offset inwards in the longitudinal direction of the main body and supports housing walls of the main body, wherein the terminating covers are each welded to the main body and all joints of the battery housing are formed without separate connecting elements.Type: ApplicationFiled: September 22, 2015Publication date: September 28, 2017Inventors: Frank Obrist, Martin Graz, Joachim Georg Roth, Peter Giese
-
Publication number: 20170279169Abstract: The invention relates to a battery system, in particular for a hybrid drive, having a housing, a plurality of battery cells arranged inside the housing and a cooling element, wherein fluid connections and at least one electrical connection are arranged on the housing, said electrical connection being electrically coupled to the battery cells, and wherein the fluid connections comprise at least one coolant inlet and at least one coolant outlet, each of which is fluidically connected to the cooling element. The invention is characterized in that the housing comprises a tubular main body, which is sealed in a fluid-tight manner by a closure cap at each of the opposite end faces thereof, wherein the electrical connection is arranged on a first closure cap and the fluid connections are arranged on a second closure cap. The invention also relates to a motor vehicle having such a battery system.Type: ApplicationFiled: September 22, 2015Publication date: September 28, 2017Inventors: Frank Obrist, Martin Graz, Joachim Georg Roth
-
Patent number: 9666912Abstract: For a technical object whose temperature is to be controlled, in particular a battery for an electric vehicle drive, there is provided a heat exchanger arrangement, the heat exchanger of which is in the form of a heat-exchanging pouch which has an inflow and outflow duct and which is in heat-conducting contact with internal surfaces of the object whose temperature is to be controlled. The heat-exchanging pouch is produced in a simple manner by means of edge welding of two foil pieces arranged one above the other. The mounting of said heat-exchanging pouch in a narrow gap space of a heat exchanger arrangement, and good heat transfer to adjacent walls, are made possible by means of a pressure pouch which is likewise formed from a foil material and which is filled with a compressible medium.Type: GrantFiled: December 6, 2013Date of Patent: May 30, 2017Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Peter Giese, Oliver Obrist
-
Patent number: 9559387Abstract: The battery has rod cells, which are arranged next to one another in multiple rows and the end-side electrical contacts of which are respectively electrically connected to one another in parallel and in series by a common contact plate. For effective cooling, a flat heat exchange pocket, through which a heat transfer medium flows, abuts against these contact plates. This heat exchange pocket consists of a multilayered thin film having an electrically insulating outer layer.Type: GrantFiled: December 6, 2013Date of Patent: January 31, 2017Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Peter Giese, Oliver Obrist
-
Publication number: 20140178737Abstract: The battery has rod cells, which are arranged next to one another in multiple rows and the end-side electrical contacts of which are respectively electrically connected to one another in parallel and in series by a common contact plate. For effective cooling, a flat heat exchange pocket, through which a heat transfer medium flows, abuts against these contact plates. This heat exchange pocket consists of a multilayered thin film having an electrically insulating outer layer.Type: ApplicationFiled: December 6, 2013Publication date: June 26, 2014Applicant: Obrist Powertrain GmbHInventors: Frank Obrist, Martin Graz, Peter Giese, Oliver Obrist
-
Publication number: 20140162107Abstract: For a technical object whose temperature is to be controlled, in particular a battery for an electric vehicle drive, there is provided a heat exchanger arrangement, the heat exchanger of which is in the form of a heat-exchanging pouch (1) which has an inflow and outflow duct and which is in heat-conducting contact with internal surfaces of the object whose temperature is to be controlled. The heat-exchanging pouch (1) is produced in a simple manner by means of edge welding of two foil pieces arranged one above the other. The mounting of said heat-exchanging pouch in a narrow gap space of a heat exchanger arrangement, and good heat transfer to adjacent walls, are made possible by means of a pressure pouch (34) which is likewise formed from a foil material and which is filled with a compressible medium.Type: ApplicationFiled: December 6, 2013Publication date: June 12, 2014Applicant: Obrist Powertrain GmbHInventors: Frank Obrist, Martin Graz, Peter Giese, Oliver Obrist
-
Publication number: 20110274575Abstract: A compressor, in particular a radial piston compressor, further in particular a compressor for CO2 as a refrigerant, including a compressor unit for compressing refrigerant and a drive shaft for driving the compressor unit and a motor chamber bounded substantially by a motor housing, wherein the motor chamber has a fluid connection to a suction gas side, in particular a suction gas chamber, of the compressor by means of a fluid connection formed at least partially in the drive shaft, wherein at least one device for accumulating oil is arranged in the fluid connection.Type: ApplicationFiled: January 22, 2010Publication date: November 10, 2011Applicants: OBRIST ENGINEERING GMBH, GEA BOCK GMBHInventors: Frank Obrist, Martin Graz, Stefan Kross
-
Publication number: 20070023172Abstract: In an air/refrigerant heat exchanger, particularly for a motor vehicle air conditioning system, including a plurality of flat tubes arranged in closely spaced relationship so that a narrow flow passage for air is formed therebetween, the flat tubes include passages through which refrigerant is conducted in the longitudinal direction of the flat tubes and are provided on their outer surfaces with longitudinal parallel recesses and projections such that the flat tubes are wave-shaped the recesses and projections flattening out toward the narrow ends of the flat tubes and provide for narrow flat rectangular end sections.Type: ApplicationFiled: September 15, 2006Publication date: February 1, 2007Inventors: Frank Obrist, Norbert Tessendorf, Peter Kuhn, Martin Graz
-
Publication number: 20060218956Abstract: The aim of the invention is to obviate the need for rubber hoses or other flexible rubber compensation elements, which prevent the transmission of vibrations to the vehicle body. To achieve this, the pipelines of an air conditioning system including their pipe couplings (42-45) are configured entirely of metal with an external diameter, in relation to the compressor, of less than 11 mm on the discharge side and less than 13 mm on the suction side. A damping curvature (35, 36) is also configured in the pipelines (6?, 12?) that connect the compressor to a heat exchanger, in addition to at least one curvature (37-40) required by the installation geometry of the conduit system. The system is also equipped with a pipeline, designed to restrict the flow of operating fluid, said pipeline being configured as a particularly thin pipe with an internal diameter of capillary-tube type proportions, designed to restrict the flow and an external diameter ranging between 2 and 4 mm.Type: ApplicationFiled: April 8, 2004Publication date: October 5, 2006Inventors: Hans Hammer, Dirk Schroeder, Christian Rebinger, Frank Obrist, Frank Wolf, Martin Graz
-
Patent number: D772805Type: GrantFiled: April 6, 2015Date of Patent: November 29, 2016Assignee: OBRIST TECHNOLOGIES GMBHInventors: Frank Obrist, Martin Graz, Jochen Bont