Patents by Inventor Sacha Parneix
Sacha Parneix 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: 7520724Abstract: A cooled blade for a gas turbine has a blade airfoil, which emerges from a blade root and a blade shank and has a leading edge and a trailing edge and, within the blade airfoil, a plurality of sequential coolant ducts, in terms of flow, extending in a radial direction. A first coolant duct along the leading edge, and a second coolant duct along the trailing edge, have a main flow of a coolant flowing through them from the blade root to the tip of the blade airfoil. An inlet of the first coolant duct is in connection with a main coolant inlet, and an outlet of the first coolant duct is in connection with the inlet to the second coolant duct via a first deflection region. A third coolant duct is arranged between the first and the second coolant duct and a second deflection region. An additional flow of cooler coolant provided from outside is added from the third coolant duct into the heated main flow of the coolant flowing into the second coolant duct.Type: GrantFiled: July 10, 2006Date of Patent: April 21, 2009Assignee: Alstom Technology LtdInventors: Shailandra Naik, Sacha Parneix, Ulrich Rathmann, Helene Saxer-Felici, Stefan Schlechtriem, Beat Von Arx
-
Patent number: 7264445Abstract: A cooled blade or vane for a gas turbine has a main blade or vane part which starts from a blade or vane root and a blade or vane shank and has a leading edge and a trailing edge, as well as, inside the main blade or vane part, a plurality of cooling ducts, which extend in the radial direction, are connected in series in terms of flow and of which a first cooling duct has a main stream of a cooling medium flowing through it along the leading edge. A second cooling duct has a main stream of a cooling medium flowing through it along the trailing edge, from the blade or vane root to the tip of the main blade or vane part. The outlet of the first cooling duct is in communication, via a first diverting region, a third cooling duct arranged between the first and second cooling ducts, and a second diverting region, with the inlet of the second cooling duct.Type: GrantFiled: January 12, 2006Date of Patent: September 4, 2007Assignee: Alstom Technology LtdInventors: Shailandra Naik, Sacha Parneix, Ulrich Rathmann, Helene Saxer-Felici, Stefan Schlechtriem, Beat Von Arx
-
Publication number: 20060292006Abstract: A cooled blade for a gas turbine has a blade airfoil, which emerges from a blade root and a blade shank and has a leading edge and a trailing edge and, within the blade airfoil, a plurality of sequential coolant ducts, in terms of flow, extending in a radial direction. A first coolant duct along the leading edge, and a second coolant duct along the trailing edge, have a main flow of a coolant flowing through them from the blade root to the tip of the blade airfoil. An inlet of the first coolant duct is in connection with a main coolant inlet, and an outlet of the first coolant duct is in connection with the inlet to the second coolant duct via a first deflection region. A third coolant duct is arranged between the first and the second coolant duct and a second deflection region. An additional flow of cooler coolant provided from outside is added from the third coolant duct into the heated main flow of the coolant flowing into the second coolant duct.Type: ApplicationFiled: July 10, 2006Publication date: December 28, 2006Applicant: Alstom Technology Ltd.Inventors: Shailandra Naik, Sacha Parneix, Ulrich Rathmann, Helene Saxer-Felici, Stefan Schlechtriem, Beat Von Arx
-
Patent number: 7137784Abstract: A thermally loaded component has at least one cooling passage for the flow of a cooling fluid passing through it. In the region of a bend, at least one diverter device for the integral capturing of the flow of the cooling fluid is provided within the cooling passage. The diverter device comprises, over the height of the cooling passage, two diverter parts which are spaced apart from one another. The diverter maybe cast with a notch therein so that during cooling, the diverter breaks into separated portions proximate the notch.Type: GrantFiled: June 10, 2004Date of Patent: November 21, 2006Assignee: Alstom Technology LtdInventors: Kenneth Hall, Sacha Parneix, Remigi Tschuor
-
Publication number: 20060177310Abstract: A cooled blade or vane for a gas turbine has a main blade or vane part which starts from a blade or vane root and a blade or vane shank and has a leading edge and a trailing edge, as well as, inside the main blade or vane part, a plurality of cooling ducts, which extend in the radial direction, are connected in series in terms of flow and of which a first cooling duct has a main stream of a cooling medium flowing through it along the leading edge. A second cooling duct has a main stream of a cooling medium flowing through it along the trailing edge, from the blade or vane root to the tip of the main blade or vane part. The outlet of the first cooling duct is in communication, via a first diverting region, a third cooling duct arranged between the first and second cooling ducts, and a second diverting region, with the inlet of the second cooling duct.Type: ApplicationFiled: January 12, 2006Publication date: August 10, 2006Applicant: ALSTOM Technology LtdInventors: Shailendra Naik, Sacha Parneix, Ulrich Rathmann, Helene Saxer-Felici, Stefan Schlechtriem, Beat Von Arx
-
Publication number: 20050042096Abstract: A thermally loaded component has at least one cooling passage for the flow of a cooling fluid passing through it. In the region of a bend, at least one diverter device for the integral capturing of the flow of the cooling fluid is provided within the cooling passage. The diverter device comprises, over the height of the cooling passage, two diverter parts which are spaced apart from one another.Type: ApplicationFiled: June 10, 2004Publication date: February 24, 2005Inventors: Kenneth Hall, Sacha Parneix, Remigi Tschuor
-
Patent number: 6666262Abstract: An arrangement for cooling a flow-passage wall surrounding a flow passage is described, having at least one rib feature which induces flow vortices in a flow medium passing through the flow passage, is attached to that side of the flow-passage wall which faces the flow passage, and has a main longitudinal extent which is oriented at an angle of &agr;≠0° to the direction of flow of the flow medium passing through the flow passage. The invention is characterized in that the rib feature, along the main longitudinal extent, at least partly has rib-feature sections whose axes enclose an angle of &bgr;≠0° with the main longitudinal extent.Type: GrantFiled: November 30, 2000Date of Patent: December 23, 2003Assignee: Alstom (Switzerland) LtdInventors: Sacha Parneix, Jens Von Wolfersdorf, Bernhard Weigand
-
Patent number: 6595750Abstract: The present invention relates to a component of a flow machine, particularly a turbine blade, which has a cooling channel (9, 10) through which cooling medium can flow, with at least one deflection (5) formed by the wall (11, 12) of the cooling channel, by means of which deflection the flow of the cooling medium from a first channel section (9) is deflected into a second channel section (10) situated downstream. At least one flow guiding element (8) is arranged in the cooling channel in the region of the deflection, and divides the cooling channel into an inner (13) and an outer (14) flow channel. In the present component, the inner flow channel (13) has a constriction in the flow cross section. By the proposed configuration of the cooling channel deflection, the pressure loss brought about by the deflection is minimized and simultaneously a distinctly more homogeneous heat transfer is attained to the cooling medium, without local temperature peaks.Type: GrantFiled: December 13, 2001Date of Patent: July 22, 2003Assignee: Alstom Power N.V.Inventors: Sacha Parneix, Martin Schnieder, Jens von Wolfersdorf
-
Publication number: 20020176776Abstract: The present invention relates to a component of a flow machine, particularly a turbine blade, which has a cooling channel (9, 10) through which cooling medium can flow, with at least one deflection (5) formed by the wall (11, 12) of the cooling channel, by means of which deflection the flow of the cooling medium from a first channel section (9) is deflected into a second channel section (10) situated downstream. At least one flow guiding element (8) is arranged in the cooling channel in the region of the deflection, and divides the cooling channel into an inner (13) and an outer (14) flow channel. In the present component, the inner flow channel (13) has a constriction in the flow cross section. By the proposed configuration of the cooling channel deflection, the pressure loss brought about by the deflection is minimized and simultaneously a distinctly more homogeneous heat transfer is attained to the cooling medium, without local temperature peaks.Type: ApplicationFiled: December 13, 2001Publication date: November 28, 2002Inventors: Sacha Parneix, Martin Schnieder, Jens von Wolfersdorf
-
Patent number: 6446710Abstract: An arrangement for cooling a flow-passage wall surrounding a flow passage is described, having at least one rib element which induces flow vortices in a flow medium passing through the flow passage, is attached to that side of the flow-passage wall which faces the flow passage, and the shape and size of which are selected in accordance with a certain heat transfer coefficient and a certain pressure loss caused in the flow medium due to the latter flowing over the rib element. The invention is characterized in that the rib element, while largely retaining its original shape and/or size, has contours enlarging its surface facing the flow passage.Type: GrantFiled: December 1, 2000Date of Patent: September 10, 2002Assignee: ALSTOM (Switzerland) LtdInventors: Alexander Beeck, Bernhard Bonhoff, Sacha Parneix, Bernhard Weigand
-
Publication number: 20020005274Abstract: An arrangement for cooling a flow-passage wall surrounding a flow passage is described, having at least one rib element which induces flow vortices in a flow medium passing through the flow passage, is attached to that side of the flow-passage wall which faces the flow passage, and the shape and size of which are selected in accordance with a certain heat transfer coefficient and a certain pressure loss caused in the flow medium due to the latter flowing over the rib element.Type: ApplicationFiled: December 1, 2000Publication date: January 17, 2002Inventors: Alexander Beeck, Bernhard Bonhoff, Sacha Parneix, Bernhard Weigand
-
Patent number: 6236562Abstract: The section of an electrical high-voltage system has a gas-filled housing of predominantly symmetrical design. Provided in the housing are a conductor extending along a plane of symmetry of the housing, and cooling means for producing a circulation flow which dissipates heat loss from the conductor. The cooling means contains two blowers. The blowers are arranged in the interior of the housing and designed in such a way that, during the operation of the system, two mirror-symmetrical circulation part flows are formed which are bounded by the plane of symmetry. These circulation part flows are in each case guided without recirculation along a housing side wall from the top of the housing or the bottom of the housing. By this means, the heat loss is given up particularly effectively to the housing side walls, and the conductor can be loaded with very high operating currents.Type: GrantFiled: December 23, 1999Date of Patent: May 22, 2001Assignee: Asea Brown Boveri AGInventors: Günter Wilfert, Günter Kübler, Sacha Parneix, Enrico Malfa