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).

  • Patent number: 11396068
    Abstract: 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: Grant
    Filed: June 26, 2019
    Date of Patent: July 26, 2022
    Assignee: MTU Aero Engines AG
    Inventors: Anna Carina Kuepper, Waltraud Himmelstoss, Hans Zimmermann, Florian Kreitmair, Heinrich Janko, Frank Binder
  • Patent number: 11092012
    Abstract: 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: Grant
    Filed: March 25, 2018
    Date of Patent: August 17, 2021
    Assignee: MTU Aero Engines AG
    Inventors: Rudolf Stanka, Martin Fischer, Hans Zimmermann, Martin Becker, Luitpold Frey
  • Publication number: 20200001410
    Abstract: 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: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Applicant: MTU Aero Engines AG
    Inventors: Anna Carina KUEPPER, Waltraud HIMMELSTOSS, Hans ZIMMERMANN, Florian KREITMAIR, Heinrich JANKO, Frank BINDER
  • Patent number: 10421115
    Abstract: 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: Grant
    Filed: March 1, 2017
    Date of Patent: September 24, 2019
    Assignee: HEGENSCHEIDT-MFD GmbH
    Inventors: Hans Toni Steffens, Hans Zimmermann
  • Publication number: 20180274367
    Abstract: 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: Application
    Filed: March 25, 2018
    Publication date: September 27, 2018
    Applicant: MTU Aero Engines AG
    Inventors: Rudolf Stanka, Martin Fischer, Hans Zimmermann, Martin Becker, Luitpold Frey
  • Patent number: 9987722
    Abstract: 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: Grant
    Filed: July 20, 2012
    Date of Patent: June 5, 2018
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Publication number: 20170252796
    Abstract: 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: Application
    Filed: March 1, 2017
    Publication date: September 7, 2017
    Inventors: Hans Toni Steffens, Hans Zimmermann
  • Patent number: 9068826
    Abstract: 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: Grant
    Filed: May 9, 2012
    Date of Patent: June 30, 2015
    Assignee: MTU Aero Engines AG
    Inventor: Hans Zimmermann
  • Publication number: 20140326032
    Abstract: 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: Application
    Filed: July 20, 2012
    Publication date: November 6, 2014
    Applicant: HEGENSCHEIDT-MFD GMBH & CO. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Patent number: 7493788
    Abstract: 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: Grant
    Filed: January 5, 2004
    Date of Patent: February 24, 2009
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Roland Heffe, Hans-Willi Lingen, Frank Risters, Hans Zimmermann
  • Publication number: 20080184756
    Abstract: 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: Application
    Filed: January 5, 2004
    Publication date: August 7, 2008
    Inventors: Roland Heffe, Hans-Willi Lingen, Frank Risters, Hans Zimmermann
  • Patent number: 6991434
    Abstract: 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: Grant
    Filed: June 16, 2003
    Date of Patent: January 31, 2006
    Assignee: MTU Aero Engines GmbH
    Inventors: Stefan Heinrich, Johann Schnellbach, Hans Zimmermann
  • Publication number: 20040184920
    Abstract: 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: Application
    Filed: June 16, 2003
    Publication date: September 23, 2004
    Inventors: Stefan Heinrich, Johann Schnellbach, Hans Zimmermann
  • Patent number: 6691543
    Abstract: 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: Grant
    Filed: March 14, 2002
    Date of Patent: February 17, 2004
    Assignee: Hegenscheidt-MFD GmbH & Co. KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Publication number: 20020178775
    Abstract: 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: Application
    Filed: March 14, 2002
    Publication date: December 5, 2002
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Patent number: 6393887
    Abstract: 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: Grant
    Filed: February 2, 2001
    Date of Patent: May 28, 2002
    Assignee: Hegenscheidt-MFD GmbH & Co., KG
    Inventors: Hans-Toni Steffens, Hans Zimmermann
  • Patent number: 6142075
    Abstract: 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: Grant
    Filed: May 20, 1998
    Date of Patent: November 7, 2000
    Assignee: KBA-Planeta AG
    Inventors: Michael Koch, Volker Taschenberger, Hans Zimmermann
  • Patent number: 6097116
    Abstract: 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: Grant
    Filed: August 21, 1998
    Date of Patent: August 1, 2000
    Assignee: ABB Research Ltd.
    Inventors: Stephan Hess, Reinhard Joho, Jens von Wolfersdorf, Hans Zimmermann, deceased
  • Patent number: 5885354
    Abstract: 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: Grant
    Filed: December 9, 1996
    Date of Patent: March 23, 1999
    Assignee: ACT Advanced Circuit Testing Gesellschaft Fur Testsystement-Wicklung mbH
    Inventors: Jurgen Frosien, Dieter Winkler, Hans Zimmermann
  • Patent number: 5866960
    Abstract: 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: Grant
    Filed: November 10, 1997
    Date of Patent: February 2, 1999
    Assignee: Asea Brown Boveri AG
    Inventors: Walter Meier, Francesco Stallone, Jens von Wolfersdorf, Hans Zimmermann, deceased