Patents by Inventor Hans Zimmermann
Hans Zimmermann 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: 11396068Abstract: The present invention is directed to a method for producing a rotating disk for a turbomachine, forming blade root uptakes on a plurality of circumferential positions, for which, in each case, an axially extending profile groove that is bounded circumferentially by inner wall surfaces of the rotating disk is introduced on a respective circumferential position, in which production method, initially first profile grooves are introduced in a disk on first circumferential positions, and subsequently, a second profile groove is introduced in the disk on a second circumferential position located circumferentially between the first profile grooves.Type: GrantFiled: June 26, 2019Date of Patent: July 26, 2022Assignee: MTU Aero Engines AGInventors: Anna Carina Kuepper, Waltraud Himmelstoss, Hans Zimmermann, Florian Kreitmair, Heinrich Janko, Frank Binder
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Patent number: 11092012Abstract: A rotor, for a turbomachine, in particular a gas turbine, having a first flange and a second flange with recesses that are distributed in a direction of distribution, in particular in the peripheral direction, wherein the second flange is fastened to the first flange, in particular detachably, by at least one fastener, which engage in the first of these recesses of the first and second flanges, wherein second ones of these recesses of the first flange, which are free of a fastener, are covered by the second flange.Type: GrantFiled: March 25, 2018Date of Patent: August 17, 2021Assignee: MTU Aero Engines AGInventors: Rudolf Stanka, Martin Fischer, Hans Zimmermann, Martin Becker, Luitpold Frey
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Publication number: 20200001410Abstract: The present invention is directed to a method for producing a rotating disk for a turbomachine, forming blade root uptakes on a plurality of circumferential positions, for which, in each case, an axially extending profile groove that is bounded circumferentially by inner wall surfaces of the rotating disk is introduced on a respective circumferential position, in which production method, initially first profile grooves are introduced in a disk on first circumferential positions, and subsequently, a second profile groove is introduced in the disk on a second circumferential position located circumferentially between the first profile grooves.Type: ApplicationFiled: June 26, 2019Publication date: January 2, 2020Applicant: MTU Aero Engines AGInventors: Anna Carina KUEPPER, Waltraud HIMMELSTOSS, Hans ZIMMERMANN, Florian KREITMAIR, Heinrich JANKO, Frank BINDER
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Patent number: 10421115Abstract: The invention discloses a hard-rolling roller head with two separate housings for deep rolling the outside radii of adjoining crankpins of a split-pin crankshaft. The hard-rolling roller head provides an effective support of the two housings against one another, when machining split-pin crankshafts, and simultaneously prevents the upper areas of these housings from drifting apart.Type: GrantFiled: March 1, 2017Date of Patent: September 24, 2019Assignee: HEGENSCHEIDT-MFD GmbHInventors: Hans Toni Steffens, Hans Zimmermann
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Publication number: 20180274367Abstract: The present invention relates to a component arrangement, in particular a rotor, for a turbomachine, in particular a gas turbine, having a first flange and a second flange with recesses that are distributed in a direction of distribution, in particular in the peripheral direction, wherein the second flange is fastened to the first flange, in particular detachably, by at least one fastener, which engage in the first of these recesses of the first and second flanges, wherein second ones of these recesses of the first flange, which are free of a fastener, are covered by the second flange.Type: ApplicationFiled: March 25, 2018Publication date: September 27, 2018Applicant: MTU Aero Engines AGInventors: Rudolf Stanka, Martin Fischer, Hans Zimmermann, Martin Becker, Luitpold Frey
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Patent number: 9987722Abstract: The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.Type: GrantFiled: July 20, 2012Date of Patent: June 5, 2018Assignee: Hegenscheidt-MFD GmbH & Co. KGInventors: Hans-Toni Steffens, Hans Zimmermann
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Publication number: 20170252796Abstract: The invention discloses a hard-rolling roller head with two separate housings for deep rolling the outside radii of adjoining crankpins of a split-pin crankshaft. The hard-rolling roller head provides an effective support of the two housings against one another, when machining split-pin crankshafts, and simultaneously prevents the upper areas of these housings from drifting apart.Type: ApplicationFiled: March 1, 2017Publication date: September 7, 2017Inventors: Hans Toni Steffens, Hans Zimmermann
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Patent number: 9068826Abstract: A method for checking a blade contour of a turbomachine, in particular a gas turbine, wherein an actual contour (1; 1?) of a blade is detected, wherein a target contour of the blade is scaled and the actual contour is compared with said scaled contour (2).Type: GrantFiled: May 9, 2012Date of Patent: June 30, 2015Assignee: MTU Aero Engines AGInventor: Hans Zimmermann
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Publication number: 20140326032Abstract: The invention relates to a hard-rolling roller for a deep rolling tool having a torus-shaped base body for deep rolling of radiuses or recesses which limit the bearing trunnion on crankshafts on both sides, and two at least approximately truncated cone-shaped central bodies, rising on both sides of the body. A cylindrical body rises on the upper end surface of one of the two central bodies.Type: ApplicationFiled: July 20, 2012Publication date: November 6, 2014Applicant: HEGENSCHEIDT-MFD GMBH & CO. KGInventors: Hans-Toni Steffens, Hans Zimmermann
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Patent number: 7493788Abstract: A deep rolling roller head includes two housings for the deep rolling of the outer radii or fillets of split-pin crankshaft journals by means of two deep rolling rollers which are pressed into one of the two fillets under a rolling force while the crankshaft rotates around its axis of rotation. The two housings follow at the same time the different movements of the journals and support each other with their insides across from each other on a bearing plate. The insides of the housings bear on either side of the axis of rotation of the crankshaft and at a distance from it on an extension segment extending in the direction of the rolling force to below a contact point between the deep rolling rollers and the fillets to be deep-rolled. The bearing plate connected permanently to the inside and the extensions of one of the two housings.Type: GrantFiled: January 5, 2004Date of Patent: February 24, 2009Assignee: Hegenscheidt-MFD GmbH & Co. KGInventors: Roland Heffe, Hans-Willi Lingen, Frank Risters, Hans Zimmermann
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Publication number: 20080184756Abstract: The invention relates to a deep rolling roller head (1) with two housings (6 and 7) for the deep rolling of the outer radii or indentations (2, 3) of split-pin crankshaft (5) lobes (4) by means of two deep rolling rollers (10, 11) which are pressed into one of the two indentations (2, 3) under the rolling force (12) while the crankshaft 5) rotates around its axis of rotation, the housings 6 and 7 follow at the same time the different movements of the lobes (4) and support each other with their insides (8, 9) across from each other on a bearing plate (24). The insides (8, 9) of the housings (6, 7) bear on either side of the axis of rotation (15) of the crankshaft (5) and at a distance (25) from it on an extension segment (26, 27) extending in the direction of rolling force (12) to below the contact point (36) between the deep rolling rollers (10, 11) and the indentations (2, 3) to be deep-rolled.Type: ApplicationFiled: January 5, 2004Publication date: August 7, 2008Inventors: Roland Heffe, Hans-Willi Lingen, Frank Risters, Hans Zimmermann
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Patent number: 6991434Abstract: The invention relates to a method of producing disc-shaped or ring-shaped components subjected to flow. The components are produced by milling and finish machining downstream of the milling, the component being milled out of a workpiece, and a finish machining medium flowing through the component for the finish machining after the milling. The component is milled out of the workpiece in such a way that milling ridges which are produced run approximately perpendicularly to an aerodynamic direction of flow through the component during operation. The direction of flow of the finish machining medium through the component or the rotor disc therefore runs transversely, preferably perpendicularly, to the milling ridges appearing during the prior milling step.Type: GrantFiled: June 16, 2003Date of Patent: January 31, 2006Assignee: MTU Aero Engines GmbHInventors: Stefan Heinrich, Johann Schnellbach, Hans Zimmermann
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Publication number: 20040184920Abstract: The invention relates to a method of producing disc-shaped or ring-shaped components subjected to flow. The components are produced by milling and finish machining downstream of the milling, the component being milled out of a workpiece, and a finish machining medium flowing through the component for the finish machining after the milling. The component is milled out of the workpiece in such a way that milling ridges which are produced run approximately perpendicularly to an aerodynamic direction of flow through the component during operation. The direction of flow of the finish machining medium through the component or the rotor disc therefore runs transversely, preferably perpendicularly, to the milling ridges appearing during the prior milling step.Type: ApplicationFiled: June 16, 2003Publication date: September 23, 2004Inventors: Stefan Heinrich, Johann Schnellbach, Hans Zimmermann
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Patent number: 6691543Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.Type: GrantFiled: March 14, 2002Date of Patent: February 17, 2004Assignee: Hegenscheidt-MFD GmbH & Co. KGInventors: Hans-Toni Steffens, Hans Zimmermann
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Publication number: 20020178775Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.Type: ApplicationFiled: March 14, 2002Publication date: December 5, 2002Inventors: Hans-Toni Steffens, Hans Zimmermann
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Patent number: 6393887Abstract: The fixed roll apparatus (8) of a fixed roll machine (1) for crankshafts (3) is constructed scissors-fashion. Two pivotable scissor arms (9 and 10) disposed opposite one another each bear a fixed roll head (13) and a support roll head (14) respectively. The support roll head (14) has two axis-parallel support rolls whose axes of rotation lie in a common plane. The support roll head (14) also has an axial guide roll which is disposed in front of the support rolls in the pivoting direction (35) for closure and whose axis of rotation is perpendicular to the axis of rotation of the crankshaft (3) and lies in a plane which forms an acute angle with the common plane of the axis of rotation of the support rolls, its diameter being larger than the width of the support roll head (14) and slightly smaller than the spacing of the adjacent oil collars of a main bearing pin or a connecting rod bearing pin.Type: GrantFiled: February 2, 2001Date of Patent: May 28, 2002Assignee: Hegenscheidt-MFD GmbH & Co., KGInventors: Hans-Toni Steffens, Hans Zimmermann
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Patent number: 6142075Abstract: The invention relates to a method for exact pile formation in printing press deliveries, which comprises printing, or printing and coating sheets in a printing press, transporting the printed or printed and coated sheets to a sheet delivery pile, releasing the sheets above the delivery pile, compacting the delivery pile by applying mechanical or pneumatic pressure thereonto, and removing the thus compacted delivery pile, and to apparatus for carrying out the foregoing method.Type: GrantFiled: May 20, 1998Date of Patent: November 7, 2000Assignee: KBA-Planeta AGInventors: Michael Koch, Volker Taschenberger, Hans Zimmermann
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Patent number: 6097116Abstract: In a turbo-generator (10) having a rotor (11) and a stator (12) concentrically surrounding the rotor (11) and separated from the rotor (11) by an air gap (14), and also having a cooling arrangement in which a main fan (33) draws in a gaseous cooling medium flowing through corresponding cooling passages in the rotor (11) and in the stator (12) and forces it through a cooler (22, 23, 24) back into the cooling passages, the cooling medium flowing through the rotor (11) in the axial direction, issuing in a heated state into the air gap (14) and being returned from the air gap (14) to the main fan (33), improved rotor cooling is achieved in that the cooling medium heated by the rotor (11) is directed radially outward from the air gap (14) through outflow passages (15) in the stator (12) and is returned to the main fan (33) outside the stator (12) via a cooling-air return (21).Type: GrantFiled: August 21, 1998Date of Patent: August 1, 2000Assignee: ABB Research Ltd.Inventors: Stephan Hess, Reinhard Joho, Jens von Wolfersdorf, Hans Zimmermann, deceased
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Patent number: 5885354Abstract: The invention relates to a method and to apparatus for processing a specimen, particularly an integrated circuit, in which an area of the specimen to be processed is scanned with a corpuscular beam and at least one gas is supplied above the area to be processed so that with the aid of the corpuscular beam a chemical reaction takes place on the area to be processed. The processing speed can be markedly increased by the use of a magnetic field in the region of the probe.Type: GrantFiled: December 9, 1996Date of Patent: March 23, 1999Assignee: ACT Advanced Circuit Testing Gesellschaft Fur Testsystement-Wicklung mbHInventors: Jurgen Frosien, Dieter Winkler, Hans Zimmermann
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Patent number: 5866960Abstract: In a gas-cooled electrical machine, the conductor bars (3, 4) in the winding overhang are cooled directly by a flow element of the cooling gas flow which is passed through cooling channels (8) located within the eyes (5a, 5b) of the bar ends. To this end, the bar levels of the winding bars, which are designed as a two-level bar, are spaced apart from one another in the eye region, and thus form a radial cooling channel (8). These radial cooling channels (8) are coupled to the discharge eyes (5b) by pipe connections (10) which are connected electrically, and in terms of the flow, to round connections (20). The cooling channels (9) in the round connections (20) are connected by means of insulating tubes (31) or insulating hoses to an induction area (32) of the machine fan, which is separated from the winding overhang area (30) by a bulkhead wall (33). The invention allows the bar ends and the round connections (20) connected to them in the winding overhang to be cooled optimally, since the cooling is direct.Type: GrantFiled: November 10, 1997Date of Patent: February 2, 1999Assignee: Asea Brown Boveri AGInventors: Walter Meier, Francesco Stallone, Jens von Wolfersdorf, Hans Zimmermann, deceased