Patents by Inventor Antanu Sadhu
Antanu Sadhu 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: 10060443Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.Type: GrantFiled: October 18, 2016Date of Patent: August 28, 2018Assignee: General Electric CompanyInventors: Michael James Dutka, Antanu Sadhu, Sharan Shanti, Sunil Rajagopal
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Patent number: 10012239Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.Type: GrantFiled: October 18, 2016Date of Patent: July 3, 2018Assignee: General Electric CompanyInventors: Michael James Dutka, Antanu Sadhu, Nandakumar Aladahalli Rangaswamy
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Publication number: 20180106271Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.Type: ApplicationFiled: October 18, 2016Publication date: April 19, 2018Inventors: Michael James Dutka, Antanu Sadhu, Nandakumar Aladahalli Rangaswamy
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Publication number: 20180106272Abstract: A system is provided, including an airfoil. The airfoil includes a first suction portion of a nominal airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of a suction side as set forth in TABLE I to a maximum of three decimal places, wherein the X and Y values of the suction side are coordinate values that couple together to define suction side sections of the first suction portion of the nominal airfoil profile at each Z coordinate value, the suction side sections of the first suction portion of the nominal airfoil profile are coupled together to define the first suction portion, the airfoil includes an airfoil length along a Z axis, the first suction portion comprises a first portion length along the Z axis, the first portion length is less than or equal to the airfoil length, and the Cartesian coordinate values of X, Y, and Z are non-dimensional values convertible to dimensional distances.Type: ApplicationFiled: October 18, 2016Publication date: April 19, 2018Inventors: Michael James Dutka, Antanu Sadhu, Sharan Shanti, Sunil Rajagopal
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Patent number: 9109467Abstract: An exhaust system for use with a steam turbine is provided. An exhaust hood includes an input and an output, the input receiving fluid from the steam turbine. The exhaust hood includes a first side wall that extends between the input and the output. The first side wall includes an aperture. An ejector is coupled to the exhaust hood. The ejector includes inlets and an outlet. At least one of the inlets receives fluid from the exhaust hood via the aperture.Type: GrantFiled: July 5, 2012Date of Patent: August 18, 2015Assignee: General Electric CompanyInventors: Prakash Bavanjibhai Dalsania, Antanu Sadhu
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Patent number: 9062568Abstract: An asymmetric butterfly plate for a steam turbine exhaust hood includes a non-symmetrical curvilinear profile having a first section that extends to a second section through a vertex. The first section has a first curvilinear profile and the second section has a second curvilinear profile that is distinct from the first curvilinear profile.Type: GrantFiled: October 14, 2011Date of Patent: June 23, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Antanu Sadhu, Prakash Bavanjibhai Dalsania
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Patent number: 9057287Abstract: A steam turbine exhaust hood includes an exhaust hood section, and a butterfly plate arranged in the exhaust hood section. The butterfly plate includes a complex curvilinear cross-sectional profile having a first section that extends between a first end portion and a middle portion, and a second section that extends between the middle portion and a second end portion. One of the first and second sections is formed from at least two curvilinear segments including at least one curvilinear segment having a positive curvature and at least one curvilinear segment having a negative curvature.Type: GrantFiled: August 30, 2011Date of Patent: June 16, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Antanu Sadhu, Prakash Bavanjibhai Dalsania, Shashwat Swami Jaiswal
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Publication number: 20140314549Abstract: A flow manipulating arrangement for a turbine exhaust diffuser includes a strut having a leading edge and a trailing edge, the strut disposed within the turbine exhaust diffuser. Also included is a plurality of rotatable guide vanes disposed in close proximity to the strut and configured to manipulate an exhaust flow, wherein the plurality of rotatable guide vanes is coaxially aligned and circumferentially arranged relative to each other. Further included is an actuator in operative communication with the plurality of rotatable guide vanes and configured to actuate an adjustment of the plurality of rotatable guide vanes. Yet further included is a circumferential ring operatively coupling the plurality of rotatable guide vanes, wherein the actuator is configured to directly actuate rotation of one of the rotatable guide vanes, and wherein the circumferential ring actuates rotation of the plurality of rotatable guide vanes upon rotational actuation by the actuator.Type: ApplicationFiled: April 17, 2013Publication date: October 23, 2014Applicant: General Electric CompanyInventors: Srinivas Rao Pakkala, Manjunath Bangalore Chengappa, Kamlesh Mundra, Antanu Sadhu, Kunal Upendra Sakekar, Moorthi Subramaniyan, Lisa Anne Wichmann
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Publication number: 20140037439Abstract: Various embodiments include a turbomachine exhaust diffuser. In some embodiments, the turbomachine diffuser includes an inlet, an outlet opposing the inlet along a primary axis of the turbomachine diffuser, and a diffuser region between the inlet and the outlet. The diffuser region can include: a radially outer wall and a radially inner wall opposing the radially outer wall. The radially inner wall can include: a first section including a substantially uniform slope, and a second section continuous with the first section, the second section having a non-uniform slope.Type: ApplicationFiled: August 2, 2012Publication date: February 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Prakash Bavanjibhai Dalsania, Antanu Sadhu
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Publication number: 20140010641Abstract: An exhaust system for use with a steam turbine is provided. An exhaust hood includes an input and an output, the input receiving fluid from the steam turbine. The exhaust hood includes a first side wall that extends between the input and the output. The first side wall includes an aperture. An ejector is coupled to the exhaust hood. The ejector includes inlets and an outlet. At least one of the inlets receives fluid from the exhaust hood via the aperture.Type: ApplicationFiled: July 5, 2012Publication date: January 9, 2014Inventors: Prakash Bavanjibhai Dalsania, Antanu Sadhu
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Publication number: 20130180245Abstract: A gas turbine is provided, including a turbine, an exhaust diffuser, and a plasma actuator. The turbine releases an exhaust gas. The exhaust diffuser receives the exhaust gas from the turbine. The exhaust diffuser has an inlet and an outlet, and at least one wall that is disposed between the inlet and the outlet. The plasma actuator produces a plasma along the at least one wall of the diffuser.Type: ApplicationFiled: January 12, 2012Publication date: July 18, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Seyed Gholamali Saddoughi, Deepesh Dinesh Nanda, Antanu Sadhu
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Publication number: 20130094956Abstract: An asymmetric butterfly plate for a steam turbine exhaust hood includes a non-symmetrical curvilinear profile having a first section that extends to a second section through a vertex. The first section has a first curvilinear profile and the second section has a second curvilinear profile that is distinct from the first curvilinear profile.Type: ApplicationFiled: October 14, 2011Publication date: April 18, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Antanu Sadhu, Prakash Bavanjibhai Dalsania
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Publication number: 20130047612Abstract: A steam turbine exhaust hood includes an exhaust hood section, and a butterfly plate arranged in the exhaust hood section. The butterfly plate includes a complex curvilinear cross-sectional profile having a first section that extends between a first end portion and a middle portion, and a second section that extends between the middle portion and a second end portion. One of the first and second sections is formed from at least two curvilinear segments including at least one curvilinear segment having a positive curvature and at least one curvilinear segment having a negative curvature.Type: ApplicationFiled: August 30, 2011Publication date: February 28, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Antanu Sadhu, Prakash Bavanjibhai Dalsania, Shashwat Swami Jaiswal
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Publication number: 20130019600Abstract: An exhaust arrangement for a turbine is provided having an inner turbine casing, a condenser, an exhaust arrangement structure, and a bearing cone. The inner turbine casing includes a plurality of last stage buckets. A steam flow passes through the inner turbine casing and out of the plurality of last stage buckets. The condenser for receives the steam flow. The exhaust arrangement structure has a diffuser, a lower section and an upper section. The lower section has an exhaust section. The lower section receives the steam flow from the last stage buckets of the inner turbine casing through the diffuser and guides the steam flow out of the exhaust section in a direction generally towards the condenser. The upper section has a receiving section and a guiding section.Type: ApplicationFiled: July 18, 2011Publication date: January 24, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Sudhakar Neeli, Joshy John, Antanu Sadhu