Patents by Inventor Iris Oltmanns
Iris Oltmanns 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: 8572982Abstract: The invention relates to a gas turbine, for energy generation, with a compressor, arranged coaxially to a rotor, mounted such as to rotate, for the compression of an inlet gaseous fluid, at least partly serving for combustion of a fuel in a subsequent annular combustion chamber, with generation of a hot working medium, with an annular diffuser arranged coaxially to the rotor, between the compressor and the annular combustion chamber, for distribution and deflection of the fluid, whereby a part of the fluid is diverted as cooling fluid for the turbine stages after the combustion chamber, by means of a dividing element, arranged in the fluid flow.Type: GrantFiled: July 10, 2009Date of Patent: November 5, 2013Assignee: Siemens AktiengesellschaftInventors: Peter Tiemann, Iris Oltmanns
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Patent number: 8245513Abstract: The invention relates to a combustion chamber of a gas turbine, inside of which a supplied fuel is reacted with supplied combustion air in order to produce a working medium. The inside of the combustion chamber wall is provided with a lining formed from a number of heat shield elements. The or each heat shield element, together with the combustion chamber wall, forms an interior space that can be subjected to the action of a coolant. The aim of the invention is to provide a combustion chamber with a comparatively simple design that has a high system efficiency. To this end, the invention provides that a flow element is placed in the respective interior space while serving to effect a locally specific control of the flow of coolant.Type: GrantFiled: April 27, 2004Date of Patent: August 21, 2012Assignee: Siemens AktiengesellschaftInventors: Michael Huth, Peter Tiemann, Iris Oltmanns, legal representative
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Patent number: 8082738Abstract: A gas turbine engine having an axial flow compressor, an annular combustion chamber, a turbine, and a diffuser. The diffuser includes a flow-dividing element formed by an inner deflecting flank and an outer deflecting flank that divides a compressed gas flow into two partial flows at a branching point. The two deflecting flanks define: an angle of less than 90° along at least a portion of the deflecting flanks, and an angle between 15° and 90° between the deflecting flank angle bisector and the turbine longitudinal axis. The deflector also includes a main deflecting region arranged upstream of the branching point and directed at an acute angle from the turbine longitudinal axis toward an inner combustion chamber shell.Type: GrantFiled: July 16, 2004Date of Patent: December 27, 2011Assignee: Siemens AktiengesellschaftInventors: Christian Cornelius, Reinhard Mönig, Peter Tiemann, Iris Oltmanns, legal representative
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Patent number: 7862294Abstract: The invention relates to a segmented inner ring for holding guide blades. According to the invention, a lateral wall opposing the front side of the inner ring and pertaining to a shaft shoulder formed on the rotor shaft extends radially, and respectively one half of a labyrinth seal is formed on the front side of the inner ring and on the shaft shoulder. The aim of the invention is to apply an arrangement of stacked labyrinth seals, known from aeroplane turbines, to a stationary gas turbine having a separation plane. To this end, a method is used to mount an inner ring of a gas turbine. The invention also relates to a stationary gas turbine comprising a segmented inner ring.Type: GrantFiled: September 2, 2008Date of Patent: January 4, 2011Assignee: Siemens AktiengesellschaftInventors: Peter Tiemann, Iris Oltmanns, legal representative
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Publication number: 20100257869Abstract: The invention relates to a gas turbine, comprising an annular combustion chamber and an upstream diffuser, with a throughflow essentially parallel to a turbine longitudinal axis, at a distance from said axis at least partly less than the annular combustion chamber, in which a compressed gas may be divided into several partial flows at a branching point, whereby at least one of the partial flows is a cooling gas flow. A main deflection region is provided in said diffuser, directed at an angle to the turbine longitudinal axis towards the annular combustion chamber.Type: ApplicationFiled: July 16, 2004Publication date: October 14, 2010Inventors: Christian Cornelius, Reinhard Mönig, Peter Tiemann, Iris Oltmanns
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Publication number: 20090272120Abstract: The invention relates to a gas turbine, for energy generation, with a compressor, arranged coaxially to a rotor, mounted such as to rotate, for the compression of an inlet gaseous fluid, at least partly serving for combustion of a fuel in a subsequent annular combustion chamber, with generation of a hot working medium, with an annular diffuser arranged coaxially to the rotor, between the compressor and the annular combustion chamber, for distribution and deflection of the fluid, whereby a part of the fluid is diverted as cooling fluid for the turbine stages after the combustion chamber, by means of a dividing element, arranged in the fluid flow.Type: ApplicationFiled: July 10, 2009Publication date: November 5, 2009Inventors: Peter Tiemann, Iris Oltmanns
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Publication number: 20090208344Abstract: There is described a method wherein through holes of a wall are treated on a inside, and wherein one respective pole electrode is assigned to each through hole that is to be processed.Type: ApplicationFiled: September 16, 2005Publication date: August 20, 2009Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Rene Jabado, Uwe Kaden, Ursus Krüger, Daniel Körtvelyessy, Ralph Reiche, Michael Rindler, Jan Steinbach, Peter Tiemann, Iris Oltmanns
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Patent number: 7574864Abstract: The invention relates to a gas turbine, for energy generation, with a compressor, arranged coaxially to a rotor, mounted such as to rotate, for the compression of an inlet gaseous fluid, at least partly serving for combustion of a fuel in a subsequent annular combustion chamber, with generation of a hot working medium, with an annular diffuser arranged coaxially to the rotor, between the compressor and the annular combustion chamber, for distribution and deflection of the fluid, whereby a part of the fluid is diverted as cooling fluid for the turbine stages after the combustion chamber, by means of a dividing element, arranged in the fluid flow.Type: GrantFiled: July 16, 2004Date of Patent: August 18, 2009Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, legal representative, Peter Tiemann
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Publication number: 20090003996Abstract: The invention relates to a segmented inner ring for holding guide blades. According to the invention, a lateral wall opposing the front side of the inner ring and pertaining to a shaft shoulder formed on the rotor shaft extends radially, and respectively one half of a labyrinth seal is formed on the front side of the inner ring and on the shaft shoulder. The aim of the invention is to apply an arrangement of stacked labyrinth seals, known from aeroplane turbines, to a stationary gas turbine having a separation plane. To this end, a method is used to mount an inner ring of a gas turbine. The invention also relates to a stationary gas turbine comprising a segmented inner ring.Type: ApplicationFiled: September 2, 2008Publication date: January 1, 2009Inventors: Peter Tiemann, Iris Oltmanns
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Patent number: 7438523Abstract: A blade for a turbine engine is described, having a base body, made from a titanium alloy, with a first and a second component piece, which are connected in the connection region by means of a bonding process. A groove with a groove wall runs through the connection region, to prevent local concentration of tension, such that the above borders directly on the second component piece and forms therewith a connection angle greater than 70 degrees.Type: GrantFiled: July 24, 2002Date of Patent: October 21, 2008Assignee: Siemens AktiengesellschaftInventors: Ursula Pickert, Iris Oltmanns, legal representative, Peter Tiemann, incapacitated
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Patent number: 7303371Abstract: The invention relates to a gas turbine. The aim of the invention is to provide an axial sealing between a vane ring and a moving blade ring, which has an excellent sealing effect, is easy to install and inexpensive to produce. For this purpose, a sealing element is used that extends across at least a fourth of the hot gas channel circumference. Preferably, said sealing element extends across approximately half the circumference and is inserted in grooves of the vane support and the vane platforms.Type: GrantFiled: July 5, 2004Date of Patent: December 4, 2007Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, legal representative, Peter Tiemann, legally incapacitated
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Patent number: 7299617Abstract: This invention relates to a gas turbine having a combustion chamber arrangement and a turbine chamber connected downstream of said combustion chamber arrangement, wherein the combustion chamber arrangement includes a plurality of individual combustion chambers formed by input areas and transition areas converging in an annular gap leading to the turbine chamber and wherein the longitudinal axes of the individual combustion chambers are placed at an angle relative to an engine axis that is defined by the axial extension of the turbine chamber. In order to improve said gas turbine by visibly reducing the thermal and mechanical loads of the individual combustion chambers in the transition area so that cooling requirements can be lowered in said area, the transition area of at least one individual combustion chamber into the turbine chamber is deflected in the direction of the engine axis and substantially in the input area of the turbine chamber.Type: GrantFiled: August 28, 2002Date of Patent: November 27, 2007Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, legal representatives, Peter Tiemann, deceased
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Publication number: 20070062198Abstract: The invention relates to a combustion chamber of a gas turbine, inside of which a supplied fuel is reacted with supplied combustion air in order to produce a working medium. The inside of the combustion chamber wall is provided with a lining formed from a number of heat shield elements. The or each heat shield element, together with the combustion chamber wall, forms an interior space that can be subjected to the action of a coolant. The aim of the invention is to provide a combustion chamber with a comparatively simple design that has a high system efficiency. To this end, the invention provides that a flow element is placed in the respective interior space while serving to effect a locally specific control of the flow of coolant.Type: ApplicationFiled: April 27, 2004Publication date: March 22, 2007Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Michael Huth, Peter Tiemann, Iris Oltmanns
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Patent number: 7073562Abstract: The invention relates to a method for producing a monocrystalline component, having a complex moulded structure with different structure parts, from a molten metal. According to the method, said molten metal is located in a negative mould, corresponding to the moulding structure and said negative mould moves with the formation of a solidification front on a temperature drop, which is adapted to the crystallization speed of the molten metal and which includes the melting point. Said method is characterized in that at least one of the structure parts of the moulded structure experiences an individual temperature drop. If the solidification front has to grow through a structure part, which is inappropriately oriented in relation to the solidification front, said structure part or zone can experience an individual temperature drop. This enables monocrystalline components, having a complex moulded structure, to be produced in a reliable and economic manner.Type: GrantFiled: July 24, 2002Date of Patent: July 11, 2006Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, legal representative, Peter Tiemann, deceased
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Patent number: 7051531Abstract: In order to develop a flow control body (6) for separate control of a cooling fluid inflow and a cooling fluid outflow for combustion chambers with a closed cooling system for turbines such that a simplified cooling fluid flow control is made possible in the combustion chamber wall, it is proposed with the invention that the flow control body (6) has a non-rotationally symmetrical cross-sectional shape (7) in a flow control section.Type: GrantFiled: December 5, 2003Date of Patent: May 30, 2006Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, legal representative, Peter Tiemann, deceased
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Publication number: 20060037321Abstract: A gas turbine combustion chamber comprises a manhole as access to a combustion chamber interior, which may be sealed with a manhole cover. The manhole comprises an inner cooling chamber and may thus take particularly high thermal loads.Type: ApplicationFiled: August 1, 2003Publication date: February 23, 2006Inventors: Peter Tiemann, Iris Oltmanns
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Publication number: 20050120942Abstract: The invention relates to a method for producing a monocrystalline component, having a complex moulded structure with different structure parts, from a molten metal. According to the method, said molten metal is located in a negative mould, corresponding to the moulding structure and said negative mould moves with the formation of a solidification front on a temperature drop, which is adapted to the crystallization speed of the molten metal and which includes the melting point. Said method is characterized in that at least one of the structure parts of the moulded structure experiences an individual temperature drop. If the solidification front has to grow through a structure part, which is inappropriately oriented in relation to the solidification front, said structure part or zone can experience an individual temperature drop. This enables monocrystalline components, having a complex moulded structure, to be produced in a reliable and economic manner.Type: ApplicationFiled: July 24, 2002Publication date: June 9, 2005Inventors: Peter Tiemann, Iris Oltmanns
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Publication number: 20050091987Abstract: This invention relates to a gas turbine having a combustion chamber arrangement and a turbine chamber connected downstream of said combustion chamber arrangement, wherein the combustion chamber arrangement includes a plurality of individual combustion chambers formed by input areas and transition areas converging in an annular gap leading to the turbine chamber and wherein the longitudinal axes of the individual combustion chambers are placed at an angle relative to an engine axis that is defined by the axial extension of the turbine chamber. In order to improve said gas turbine by visibly reducing the thermal and mechanical loads of the individual combustion chambers in the transition area so that cooling requirements can be lowered in said area, the transition area of at least one individual combustion chamber into the turbine chamber is deflected in the direction of the engine axis and substantially in the input area of the turbine chamber.Type: ApplicationFiled: August 28, 2002Publication date: May 5, 2005Inventors: Peter Tiemann, Iris Oltmanns
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Patent number: 6887040Abstract: A turbine blade/vane includes a profiled blade/vane aerofoil, which extends along a blade/vane axis to be capable of absorbing high thermal and mechanical loading, on the one hand, and to ensure a comparatively economical consumption of coolant, on the other. For this purpose, the blade/vane aerofoil includes, integrally formed on it, a hot-gas platform extending transversely to the blade/vane axis and, above it, a load platform. A mechanical connection between the load platform and the hot-gas platform occurs exclusively by way of the blade/vane aerofoil.Type: GrantFiled: January 17, 2003Date of Patent: May 3, 2005Assignee: Siemens AktiengesellschaftInventors: Iris Oltmanns, Peter Tiemann
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Publication number: 20050076503Abstract: The invention relates to a blade for a turbine engine with a base body, made from a titanium alloy, with a first and a second component piece, which are connected in the connection region by means of a bonding process. A groove with a groove wall runs through the connection region, to prevent local concentration of tension, such that the above borders directly on the second component piece and forms therewith a connection angle greater than 70 degrees.Type: ApplicationFiled: July 24, 2002Publication date: April 14, 2005Inventors: Ursula Pickert, Peter Tiemann, Iris Oltmanns