Patents by Inventor Ravindra Shankar Ganiger

Ravindra Shankar Ganiger 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).

  • Publication number: 20210131298
    Abstract: A sealing apparatus for a gas turbine engine includes: a first component; a second component positioned in proximity to the first component such that cavity is defined between the first and second components; a resilient seal disposed in the cavity so as to block gas flow between the first and second components, the resilient seal having a first contact surface contacting the first component and a second contact surface contacting the second component; and wherein the resilient seal is configured so as to produce a rolling movement in response to relative movement of the first and second components.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 6, 2021
    Inventors: Ravindra Shankar Ganiger, Anusrita Raychaudhuri, Apostolos Karafillis
  • Patent number: 10968775
    Abstract: A support system for a gas turbine engine is provided. The support system includes a load-bearing unit that includes a first flange, a support element supporting the load-bearing unit and having a second flange, a fastener connecting the first flange and the second flange, a first super-elastic shape memory alloy component in contact with the first flange, and a second super-elastic shape memory alloy component in contact with the second flange. The first and the second super-elastic shape memory alloy components are configured to deform when a load exerted by the fastener exceeds a threshold load value of the fastener.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 6, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Shuvajyoti Ghosh, Ravindra Shankar Ganiger, Praveen Sharma, Ishita Sehgal, Prashant Bhujabal, Shivam Mittal
  • Publication number: 20210047940
    Abstract: A support assembly for a bearing of a gas turbine engine including a spring finger ring positioned radially exterior to an outer race of the bearing. The spring finger ring includes an outer ring positioned radially exterior to the outer ring, an inner ring positioned radially interior to the outer ring, and a plurality of spring fingers extending between the inner and outer rings. One or more spring fingers configured as two-sided spring fingers including a first ligament coupled to the outer ring and extending at a first circumferential angle to a first radial bumper proximate to the inner ring and a second ligament coupled to the inner ring and extending at a different second circumferential angle to a second radial bumper proximate to the outer ring. The first and second radial bumpers define first and second radial gaps between the bumpers and the inner and outer rings, respectively.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 18, 2021
    Inventors: Ravindra Shankar Ganiger, Thomas Ory Moniz, Satish Kumar Yadav, Ambika Shivamurthy, Praveen Sharma, Bhujabal Prashant Mahadeo
  • Publication number: 20210040865
    Abstract: A casing for a bearing of a gas turbine engine includes a shaft extending along an axial direction. The casing includes an attachment feature at a radially outermost portion of the casing. The attachment feature is configured to be coupled to a static frame of the gas turbine engine. The casing further includes a plurality of support arms extend from the attachment feature to a radially innermost portion of the casing. At least one support arm of the plurality of support arms defines an internal cavity. Further, the radially innermost portion of the casing is configured to be coupled to an outer race of the bearing. The casing additionally includes a reinforcing member housed at least partially within the internal cavity of at least one support arm. Moreover, the reinforcing member includes a shape memory alloy material.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Ravindra Shankar Ganiger, Praveen Sharma, Shivam Mittal, Bhujabal Prashant Mahadeo, Weize Kang, Richard Schmidt
  • Publication number: 20210040864
    Abstract: A support assembly for a bearing of a gas turbine engine includes a shaft extending along an axial direction. The support assembly includes an outer race positioned radially exterior to the bearing such that the outer race supports the bearing. Additionally, the support assembly includes a shape memory alloy damper positioned radially exterior to the outer race and at least partially supporting the outer race. Moreover, the shape memory alloy damper includes a plurality of sleeves. One or more sleeves of the plurality of sleeves include a shape memory alloy material.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Ravindra Shankar Ganiger, Praveen Sharma, Bhujabal Prashant Mahadeo, Shivam Mittal
  • Publication number: 20210039799
    Abstract: A vibration isolation system for a gas turbine engine. The vibration isolation system includes a first fixed structure and a second fixed structure separate from the first fixed structure. The vibration isolation system further includes a connector coupling the first fixed structure to the second fixed structure. Additionally, the vibration isolation system includes an isolator, including a shape memory alloy material, associated with the connector. The isolator is arranged between the first fixed structure and the second fixed structure such that the isolator reduces vibrations transferred between the first fixed structure and the second fixed structure.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Praveen Sharma, Vinod Shashikant Chaudhari, Sivakumar Mahesh, Bhujabal Prashant Mahadeo, Mohan Kannaiah Raju, Ravindra Shankar Ganiger, Jagadisha Pai Nagarmat, Shivam Mittal
  • Publication number: 20200378273
    Abstract: A composite fan casing for a gas turbine engine defining a central axis is generally provided. The composite fan casing includes a core having a plurality of core layers of reinforcing fibers bonded together with a thermosetting polymeric resin and having an outer surface. The composite fan casing further includes at least one stiffener integrally coupled to an aft portion of the outer surface of the core relative to the central axis. Additionally, the at least one stiffener comprises an elastic material.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 3, 2020
    Inventors: Abhijeet Jayshingrao Yadav, Nagamohan Govinahalli Prabhakar, Nicholas Joseph Kray, Shivam Mittal, Praveen Sharma, Bhujabal Prashant Mahadeo, Ravindra Shankar Ganiger
  • Patent number: 10837487
    Abstract: A bearing assembly is disclosed. The bearing assembly includes a first race. Further, the bearing assembly includes a second race disposed concentric to the first race, where the second race has a radius that changes along an axial length of the bearing assembly. The bearing assembly also includes a housing disposed around the second race and operatively coupled to the second race. Moreover, the bearing assembly includes a plurality of support structures configured to detachably couple the second race to the housing, where the plurality of support structures are configured to disengage the second race from the housing to allow motion of the second race when a torque on the second race is greater than a threshold torque value.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: November 17, 2020
    Assignee: Transportation IP Holdings, LLC
    Inventors: Mandyam Rangayan Sridhar, Ravindra Shankar Ganiger, Dinesh R. Rakwal, Ajith Kuttannair Kumar, Bret Dwayne Worden
  • Patent number: 10823228
    Abstract: A hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radial inner end of the shaft extension, a radial outer end of the shaft extension fixedly coupled to a rotatable race of a bearing supporting the rotatable member, and a recoupler device formed of a shape memory alloy (SMA) material coupled in parallel with at least a portion of the shaft extension between the radial inner end and the radial outer end.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Shuvajyoti Ghosh, Shivaram Ac, Akash Joshi, Vidya Lokammanahalli Shivashankar
  • Patent number: 10823002
    Abstract: A turbine engine including a first static structure comprising a first material defining a first thermal expansion coefficient and a second static structure comprising a second material defining a second thermal expansion coefficient different from the first thermal expansion coefficient. The first static structure and the second static structure are together disposed in adjacent arrangement along a load direction. The first static structure and the second static structure together selectively define a gap therebetween along the load direction based at least on a load difference between the first static structure and the second static structure.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Praveen Sharma, Shuvajyoti Ghosh, Amit Zutshi, Raghavendra Muralidhar, Rangasai Madoor Comandore
  • Patent number: 10823003
    Abstract: A system for operating a turbo machine to maintain bearing engagement, the system including a bearing assembly; a first displacement device adjacent a bearing race; a second displacement device disposed adjacent the bearing race opposite of the first displacement device; an effort supply system disposed adjacent to the first and/or second displacement devices; and one or more controllers configured to perform operations. The operations include generating a first effort input at the first and/or second displacement devices; adjusting a thrust loading at the bearing assembly; generating a second effort input at the first displacement device greater than the first effort input; and displacing the bearing race opposite of the thrust loading at the bearing assembly via the generated second effort input at the first displacement device.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Eduardo Aguilar, Ravindra Shankar Ganiger, Richard R. Schmidt
  • Patent number: 10815795
    Abstract: A blade for a propulsion apparatus that includes a body formed of a first material. The body includes opposed pressure and suction sides and extends in span between a root and a tip. The body extends in court between a leading edge and a trailing edge. A tension element is positioned within the body and extends between the root and the tip. The tension element includes at least one string that is configured to be under tension such that at least a portion of the blade between the root and the tip is under compression.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 27, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Viswanadha Gupta Sakala, Nicholas Joseph Kray
  • Patent number: 10801366
    Abstract: A turbine engine including a bearing element coupled to a rotor assembly and a bearing housing disposed substantially concentric to the axial centerline of the turbine engine. The bearing housing includes a first member coupled to the bearing element. The first member defines a groove at which a variable stiffness element is coupled to the first member and disposed within the groove. The bearing housing defines a first portion and a second portion adjacent to the first portion along a load direction. The first portion and the second portion together selectively define a gap therebetween based at least on a change in load along the load direction.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: October 13, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Prashant Mahadeo Bhujabal, Milind Chandrakant Dhabade
  • Patent number: 10794222
    Abstract: A support assembly for a bearing of a gas turbine engine including a spring finger ring positioned radially exterior to an outer race of the bearing. The spring finger ring includes an outer ring positioned radially exterior to the outer ring, an inner ring positioned radially interior to the outer ring, and a plurality of spring fingers extending between the inner and outer rings. One or more spring fingers configured as two-sided spring fingers including a first ligament coupled to the outer ring and extending at a first circumferential angle to a first radial bumper proximate to the inner ring and a second ligament coupled to the inner ring and extending at a different second circumferential angle to a second radial bumper proximate to the outer ring. The first and second radial bumpers define first and second radial gaps between the bumpers and the inner and outer rings, respectively.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: October 6, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Thomas Ory Moniz, Satish Kumar Yadav, Ambika Shivamurthy, Praveen Sharma, Bhujabal Prashant Mahadeo
  • Patent number: 10738653
    Abstract: A damper assembly includes a bearing assembly including a bearing outer race. A damper inner race is spaced from the bearing outer race and includes a plurality of circumferentially-spaced first openings. The damper assembly also includes a damper outer race spaced from damper inner race and a plurality of damper segments extending between the damper inner race and the damper outer race. Each damper segment includes a plurality of second openings.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: August 11, 2020
    Assignee: General Electric Company
    Inventors: Narayanan Payyoor, Satish K. Yadav, Shuvajyoti Ghosh, Ravindra Shankar Ganiger
  • Patent number: 10724400
    Abstract: A support assembly for a load-bearing unit, a gas turbine engine including the support assembly, and a method of operation of the support assembly are provided. The support assembly includes a support element, a damper, and a variable stiffness member. The support element supports the load-bearing unit. The damper supports the support element and is configured to provide dampening of the load-bearing unit. The variable stiffness member is positioned between the damper and the load-bearing unit. The variable stiffness member is configured to provide a serial dampening of the load-bearing unit with the damper. The variable stiffness member includes a shape memory alloy.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: July 28, 2020
    Assignee: General Electric Company
    Inventors: Shivaram Ac, Vidyashankar Ramasastry Buravalla, Ravindra Shankar Ganiger, Shuvajyoti Ghosh, Akash Joshi
  • Patent number: 10704734
    Abstract: An apparatus and method for determining lubrication contamination or deterioration in an engine or a lubricant system of an engine can include at least one sensor provided in the lubricant system. The sensor can sense an aroma of a lubricant or the air around the lubricant to measure a chemical composition or an aromatic. The sensed chemical composition or aromatic can be compared to a baseline or threshold to determine a particular contamination type or deterioration level of the lubricant.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 7, 2020
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Anand Madihalli Srinivasan, Uma Maheshwar Domala, Thomas DeWitt Woodrow
  • Publication number: 20200200018
    Abstract: A blade for a propulsion apparatus that includes a body formed of a first material. The body includes opposed pressure and suction sides and extends in span between a root and a tip. The body extends in court between a leading edge and a trailing edge. A tension element is positioned within the body and extends between the root and the tip. The tension element includes at least one string that is configured to be under tension such that at least a portion of the blade between the root and the tip is under compression.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Inventors: Ravindra Shankar Ganiger, Viswanadha Gupta Sakala, Nicholas Joseph Kray
  • Patent number: 10634007
    Abstract: A rotor support system for a gas turbine engine is disclosed. The rotor support system includes a bearing support flange, a frame support flange proximate to the bearing support flange, a fastener between the bearing support flange and the frame support flange, a damping component, and an axial retainer. The damping component includes a super-elastic shape memory alloy. The fastener is configured to fail when a load on the fastener exceeds a threshold value and the damping component is configured to deform from a normal state to a deformed state after the fastener fails. The axial retainer is configured to retain the bearing support flange and the frame support flange within an axial displacement from each other after the fastener fails. A radial gap exists between the bearing support flange and the frame support flange when the damping component is in the normal state.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 28, 2020
    Assignee: General Electric Company
    Inventors: Shuvajyoti Ghosh, Ravindra Shankar Ganiger, Praveen Sharma, Ishita Sehgal, Prashant Bhujabal, Shivam Mittal
  • Patent number: 10584751
    Abstract: A load reduction assembly includes an annular bearing cone configured to extend between a bearing assembly and a frame assembly and form a first load path therebetween. The load reduction assembly further includes an annular recoupler member configured to extend between the bearing assembly and the frame assembly and form a second load path therebetween. The second load path is parallel to the first load path. The recoupler member includes a shape memory alloy configured to change stiffness in response to a change in a stress condition, thereby regulating an imbalance condition of a rotor shaft coupled to the bearing assembly.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 10, 2020
    Assignee: General Electric Company
    Inventors: Shuvajyoti Ghosh, Akash Joshi, Shivaram AC, Ravindra Shankar Ganiger, Praveen Sharma