Patents by Inventor Franz Kreitmeier
Franz Kreitmeier 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: 8983648Abstract: Two types of objects are sorted in multiple sorting passes, for instance flat mail items are precisely sorted into a delivery sequence. Objects of a first object type are fed to a sorting system from a first feeding device. Objects of a second object type are fed from a second feeding device. The sorting system sorts the objects in at least two successive sorting passes. A first sorting plan and a second sorting plan are used in each sorting pass except in the last sorting pass, where a sorting plan is used. Each first sorting plan assigns a sorting end location of a first sorting end-location region and each second sorting plan assigns a sorting end location of a second sorting end-location region. A sorting end location is selected for each object using a sorting plan in each sorting pass, and the object is transferred into the selected sorting end location.Type: GrantFiled: June 26, 2012Date of Patent: March 17, 2015Assignee: Siemens AktiengesellschaftInventors: Franz Kreitmeier, Wolf-Stephan Wilke
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Publication number: 20140121826Abstract: Two types of objects are sorted in multiple sorting passes, for instance flat mail items are precisely sorted into a delivery sequence. Objects of a first object type are fed to a sorting system from a first feeding device. Objects of a second object type are fed from a second feeding device. The sorting system sorts the objects in at least two successive sorting passes. A first sorting plan and a second sorting plan are used in each sorting pass except in the last sorting pass, where a sorting plan is used. Each first sorting plan assigns a sorting end location of a first sorting end-location region and each second sorting plan assigns a sorting end location of a second sorting end-location region. A sorting end location is selected for each object using a sorting plan in each sorting pass, and the object is transferred into the selected sorting end location.Type: ApplicationFiled: June 26, 2012Publication date: May 1, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Franz Kreitmeier, Wolf-Stephan Wilke
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Patent number: 7478524Abstract: A power generation plant includes a conventional steam turbo train, a high temperature turbo train, and a coal fired boiler (1) with a fluidized bed combustor. The high temperature turbo train is particularly arranged vertically and in parallel with the coal fired boiler (1) and separately from the conventional turbo train. Transfer flow lines (4, 5, 6) are run from the boiler (1) to the high temperature turbines over minimal lengths. The arrangement of the two turbo trains separately from one another and the vertical arrangement of the high temperature turbo train are advantageous in terms of plant efficiency and fabrication and maintenance thereof.Type: GrantFiled: August 28, 2006Date of Patent: January 20, 2009Assignee: ALSTOM Technology Ltd.Inventor: Franz Kreitmeier
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Publication number: 20080093272Abstract: To identify articles, a signature for an article that is processed on a sorting plant is formed. The signature comprises characteristic features of the article. The signature is compared with a predetermined number of first signatures of articles of a search space formed in an earlier signature formation during processing on a different sorting plant. The search space is limited by sorting plant data, which is associated with the article, of the sorting plant that processes the article for identification. The sorting plant data is obtained from a sorting logic by which a sequence of at least one of sorting plants and sorting programs that are to be passed through is defined.Type: ApplicationFiled: October 23, 2007Publication date: April 24, 2008Applicant: Siemens AktiengesellschaftInventors: Franz Kreitmeier, Ingolf Rauh
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Publication number: 20070012025Abstract: A power generation plant includes a conventional steam turbo train, a high temperature turbo train, and a coal fired boiler (1) with a fluidized bed combustor. The high temperature turbo train is particularly arranged vertically and in parallel with the coal fired boiler (1) and separately from the conventional turbo train. Transfer flow lines (4, 5, 6) are run from the boiler (1) to the high temperature turbines over minimal lengths. The arrangement of the two turbo trains separately from one another and the vertical arrangement of the high temperature turbo train are advantageous in terms of plant efficiency and fabrication and maintenance thereof.Type: ApplicationFiled: August 28, 2006Publication date: January 18, 2007Inventor: Franz Kreitmeier
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Patent number: 6694722Abstract: A recuperator (10) in a thermal power installation such as, for example, a gas turbine installation or air storage power installation, having turbines (15a, 15b) and a generator (G), has sectors (S1-S4) with tubes for the circulation of air. Hot exhaust gases from the turbines (15a, 15b) are supplied to the recuperator (10) for the purpose of heating the air flowing through the sectors (S1-S4). According to the invention, the recuperator (10) has one or a plurality of external heat storage devices (HS1, HS2, HS3) which are connected between the (S1-S4) of the recuperator (10) and are heated during the normal operation of the power installation. During an outage period of the power installation, air is circulated through the installation components (10, 15a, 15b, 19), a temperature distribution being maintained in these components with temperature differences which are smaller than a critical magnitude with respect to transient thermal stresses in the components of the recuperator.Type: GrantFiled: March 26, 2002Date of Patent: February 24, 2004Assignee: Alstom Technology LtdInventor: Franz Kreitmeier
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Patent number: 6626637Abstract: In a method for cooling a turbine (1), the supply of the cooling medium is regulated in accordance with the third power of the rotor rotational speed. The method is particularly employed in the period while the rotors run down after the termination of the on-load operation of the turbine (1). The method ensures that cooling takes place according to requirement and a critical phase with respect to vibrations of the long blades can not, as far as possible, be reached.Type: GrantFiled: March 26, 2002Date of Patent: September 30, 2003Assignee: Alstom (Switzerland) LtdInventor: Franz Kreitmeier
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Patent number: 6533546Abstract: An axial/radial three-channel diffuser is provided with two guide vanes for dividing the diffuser into three partial diffusers that are distributed so that the distribution of the surface area over the three partial diffusers in the inlet surface area is uneven. The guide vanes are oriented in accordance with the total pressure field after the last rotating blade row and are arranged at a minimum distance from the trailing edge of the last rotating blade row. Because of its long extension in relation to the channel heights of the partial diffusers, the three-channel diffuser brings about a gentle deflection of the diffuser flow. The diffuser according to the invention results in an improved pressure recovery and increased turbine performance.Type: GrantFiled: July 31, 2001Date of Patent: March 18, 2003Assignee: Alstom (Switzerland) Ltd.Inventor: Franz Kreitmeier
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Publication number: 20030035714Abstract: In a method for cooling a turbine (1), the supply of the cooling medium is regulated in accordance with the third power of the rotor rotational speed. The method is particularly employed in the period while the rotors run down after the termination of the on-load operation of the turbine (1). The method ensures that cooling takes place according to requirement and a critical phase with respect to vibrations of the long blades can not, as far as possible, be reached.Type: ApplicationFiled: March 26, 2002Publication date: February 20, 2003Inventor: Franz Kreitmeier
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Publication number: 20030033810Abstract: A recuperator (10) in a thermal power installation such as, for example, a gas turbine installation or air storage power installation, having turbines (15a, 15b) and a generator (G), has sectors (S1-S4) with tubes for the circulation of air. Hot exhaust gases from the turbines (15a, 15b) are supplied to the recuperator (10) for the purpose of heating the air flowing through the sectors (S1-S4). According to the invention, the recuperator (10) has one or a plurality of external thermal reservoirs (HS1, HS2, HS3) which are connected between the (S1-S4) of the recuperator (10) and are heated during the normal operation of the power installation. During an outage period of the power installation, air is circulated through the installation components (10, 15a, 15b, 19), a temperature distribution being maintained in these components with temperature differences which are smaller than a critical magnitude with respect to transient thermal stresses in the components of the recuperator.Type: ApplicationFiled: March 26, 2002Publication date: February 20, 2003Inventor: Franz Kreitmeier
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Publication number: 20020127100Abstract: An axial/radial three-channel diffuser is provided with two guide plates for dividing the diffuser into three partial diffusers that are distributed so that the distribution of the surface area over the three partial diffusers in the inlet surface area is uneven. The guide plates are oriented in accordance with the total pressure field after the last rotating blade row and are arranged at a minimum distance from the trailing edge of the last rotating blade row. Because of its long extension in relation to the channel heights of the partial diffusers, the three-channel diffuser brings about a gentle deflection of the diffuser flow. The diffuser according to the invention results in an improved pressure recovery and increased turbine performance.Type: ApplicationFiled: July 31, 2001Publication date: September 12, 2002Inventor: Franz Kreitmeier
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Patent number: 6102655Abstract: In a device for sealing the gap between the moving blades and the stator, designed with a conical contour, of a turbomachine, the moving blades are provided at the blade end with encircling shroud plates. These shroud plates project into a cavity in the stator and, while forming radial gaps, make a seal against the stator, which is provided with sealing strips. The cavity at the labyrinth inlet is subdivided in its radial extent into at least two axially staggered cavities. The shroud plate is of stepped design with at least two choke points with respect to the stator, the sealing strips acting on one step each while enclosing a vortex chamber. A curved sealing strip which runs at least approximately horizontally preferably acts on each step of the shroud plate.Type: GrantFiled: September 14, 1998Date of Patent: August 15, 2000Assignee: Asea Brown Boveri AGInventor: Franz Kreitmeier
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Patent number: 5870715Abstract: A logistical network has nodes and edges, or transport links, which permit mailed articles that are being set from a sender to a receiver to be transferred, processed, and forwarded in a sequence which is predetermined in terms of time and place. The network includes devices for determining differences between nominal data describing the state of the logistical network and actual measured data. A controlled system is provided for minimizing differences in a predetermined period of time by shifting the processing of mailed articles from one node or a plurality of nodes of which the capacity is reduced with respect to the nominal data to one or a plurality of other nodes such that minimal additional expenditure is incurred.Type: GrantFiled: July 3, 1996Date of Patent: February 9, 1999Assignee: Licentia Patent-Verwaltungs-GmbHInventors: Beate Belitz, Andreas Berends, Tobias Eychmueller, Franz Kreitmeier
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Patent number: 5791873Abstract: A multi-stage blade system of an axial flow turbo machine includes a wall (10, 11), which is on either the rotor side, the stator side, or both, which bounds the flow through the channel through which flow passes. The wall is provided, immediately at the outlet of the rotor blades (La1, La2, La3), with a kink angle (A, AA). This kink angle (A, AA) is dimensioned such that the outlet flow from the rotor blades is homogenized in terms of the total pressure and outlet flow angle. The wall (10, 11) is also provided with an opposing kink angle (B, BB) at least approximately in the inlet region of the stator blades (Le2, Le3) of the following stage. This allows the labyrinth mass flow to be reduced in blade systems having covering strip sealing.Type: GrantFiled: March 14, 1997Date of Patent: August 11, 1998Assignee: Asea Brown Boveri AGInventor: Franz Kreitmeier
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Patent number: 5707208Abstract: In a diffusor for an axial-flow steam turbine with an axial/radial diffusor, the kind angles Of the diffusor inlet both at the hub and at the cylinder of the turbo-machine are determined solely for the purpose of equalizing the total pressure profile over the channel height at the outlet of the last blade row. The diffusor is subdivided from the inlet to the outlet into an inner and an outer channel by a radially outward-curved guide plate. Within the deceleration zone of the diffusor, radial-flow flow ribs are arranged in the outer channel and diagonal-flow flow ribs are arranged in the inner channel for canceling the rotation of the rotational flow.Type: GrantFiled: September 3, 1996Date of Patent: January 13, 1998Assignee: Asea Brown Boveri AGInventor: Franz Kreitmeier
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Patent number: 5588799Abstract: In a diffusor for an axial-flow steam turbine with an axial/radial diffusor, the kink angles of the diffusor inlet both at the hub and at the cylinder of the turbo-machine are determined solely for the purpose of equalizing the total pressure profile over the channel height at the outlet of the last blade row. The diffusor is subdivided from the inlet to the outlet into an inner and an outer channel by a radially outward-curved guide plate. Within the deceleration zone of the diffusor, radial-flow flow ribs are arranged in the outer channel and diagonal-flow flow ribs are arranged in the inner channel for canceling the rotation of the rotational flow.Type: GrantFiled: June 7, 1995Date of Patent: December 31, 1996Assignee: ABB Management AGInventor: Franz Kreitmeier
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Patent number: 5397216Abstract: In a radial-axial inlet housing of rotating thermal machines, a flow divider is disposed in the turbine or compressor inlet, in front of the inlet and opposite the first turbine guide vane row or the compressor ribs. The flow divider in this case is disposed in the central lower stagnation point of the housing flow. It has a thick-headed profile with a straight median line. The rear side of the flow divider, seen in the direction of flow, is disposed perpendicularly to the rotary shaft at a distance from the first guide vane row or the ribs. There is a gap between the radially inner side of the flow divider and the housing wall, and the chord length of the flow divider decreases radially outwardly. The leading edge of the flow divider, seen in the direction of flow, is inclined like a straightened potential line relative to the housing wall.Type: GrantFiled: October 20, 1993Date of Patent: March 14, 1995Assignee: Asea Brown Boveri Ltd.Inventor: Franz Kreitmeier
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Patent number: 5338155Abstract: A multi-zone diffuser for an axial-flow turbomachine has a minimal overall length and a first zone with a minimal diameter. The kink angles of the diffuser inlet both at the hub and at the cylinder of the turbomachine are fixed exclusively for evening out the total pressure profile over the duct height at the outlet from the last rotor blade row. In the form of streamlined struts, are provided within the deceleration zone of the diffuser for the removal of swirl from the swirling flow. A first diffusion zone extends from the outlet plane of the last rotor blade row to a plane at the outlet of the streamlined struts and is configured as a single duct and as a bell shaped diffuser. A second diffusion zone is fashioned in the form of a multi-duct diffuser part, flow guide rings being arranged downstream of the streamlined struts.Type: GrantFiled: July 29, 1993Date of Patent: August 16, 1994Assignee: Asea Brown Boveri Ltd.Inventor: Franz Kreitmeier
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Patent number: 5290144Abstract: In a device for sealing the gap between the rotor blades and the casing (2) of a turbomachine, configured with a conical profile (28), the rotor blades (6) are provided with circumferential shroud plates (11), which seal by serrations (12, 13, 14, 15) against the casing with the formation of radial gaps (16, 17, 18). The shroud plate (11), which is arranged at the end of the blade, has four throttle locations relative to the casing, the inlet end throttle location bounding a diagonal gap (19) and the outlet end throttle location forming a radial gap (16).Type: GrantFiled: September 28, 1992Date of Patent: March 1, 1994Assignee: Asea Brown Boveri Ltd.Inventor: Franz Kreitmeier
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Patent number: 5238364Abstract: In a device for sealing the gap between the rotor blades and the casing (2) of a turbomachine, configured with a conical profile (28), the rotor blades (6) are fitted with circumferential shroud plates (11), which seal by virtue of serrations (12, 13, 14) against the casing by the formation of radial gaps (16, 17). The tips (24, 29) of the conical ends of the blades (6) seal against the casing (2) at the inlet and outlet ends, and the shroud plate (11) located centrally at the end of the blade has three throttle locations relative to the casing, the inlet end throttle location bounding a diagonal gap (19). The end of the blade is provided with a positive offset (31) relative to the passage profile, which protrudes into a gap relief chamber (25) located in the vane carrier (2).Type: GrantFiled: July 22, 1992Date of Patent: August 24, 1993Assignee: Asea Brown Boveri Ltd.Inventor: Franz Kreitmeier