-
公开(公告)号：US20180209413A1
公开(公告)日：2018-07-26
申请号：US15415582
申请日：2017-01-25
Applicant: General Electric Company
Inventor： Bodhayan Dev , Christopher Martin Middleton , Brian Paul Reeves , Deepak Trivedi
CPC classification number: F04B47/08 , E21B43/126 , F04B9/1035 , F04B11/0008 , F04B49/002 , F04B49/22 , F04B53/10 , F04B53/144 , F04B53/16
Abstract: A hydraulic actuator includes a piston housing having a head end and a base end opposite the head end and a drive piston movable between a first piston position proximate to the head end and a second piston position proximate to the base end. The hydraulic actuator further includes a control valve positionable between a first control valve position, in which the control valve directs fluid into the base end, and a second control valve position, in which the control valve directs fluid into the head end. A pressure-based position feedback system configured to facilitate transition of the control valve between the first control valve position and the second control valve position in response to predetermined head end and base end pressures.
-
公开(公告)号：US09963992B2
公开(公告)日：2018-05-08
申请号：US14869538
申请日：2015-09-29
Applicant: General Electric Company
Inventor： Xiaoqing Zheng , Michael Dennis Mack , Neelesh Nandkumar Sarawate , Deepak Trivedi
CPC classification number: F01D11/127 , F01D5/02 , F01D11/001 , F01D11/025 , F05D2220/30 , F05D2220/31 , F05D2230/60 , F05D2240/56 , F05D2260/30 , F16J15/164 , F16J15/3288
Abstract: A seal for a rotary machine includes a flexible element extending circumferentially about a rotor and extending generally radially from a first end to a free second end. The flexible element is coupled proximate the first end for rotation with the rotor. The flexible element extends at substantially a first angle between at least an intermediate portion of the flexible element and the free second end when the rotor is operating at less than a critical speed, such that a clearance gap is defined between the free second end and a stationary portion. The seal also includes a retaining plate having a stop that orients the flexible element at a second angle proximate the free second end when the rotor is operating at equal to or greater than the critical speed, such that the flexible element forms a dynamic seal between the rotor and the stationary portion.
-
公开(公告)号：US20180058241A1
公开(公告)日：2018-03-01
申请号：US15248161
申请日：2016-08-26
Applicant: General Electric Company
Inventor： Neelesh Nandkumar Sarawate , Deepak Trivedi , Xiaoqing Zheng
Abstract: A seal for a rotary machine includes a flexible element extending circumferentially about a rotating component and extending generally radially from a first end to a free second end. The flexible element is coupled proximate the first end for rotation with the rotating component. The seal also includes a retaining plate having a stop face that orients the flexible element at a first angle when the rotating component is operating at less than a critical speed and under the including of pressure loading, such that a clearance gap is defined between the free second end and a stationary component. The flexible element extends at substantially a second angle when the rotating component is operating at a speed greater than the critical speed, such that the flexible element forms a dynamic seal between the rotating component and the stationary component.
-
公开(公告)号：US12258873B2
公开(公告)日：2025-03-25
申请号：US17992395
申请日：2022-11-22
Applicant: General Electric Company
Inventor： Deepak Trivedi , Todd William Danko , Mark John Zajkowski , Don Mark Lipkin
Abstract: A system for use in servicing a machine. The system includes a tubular body including a longitudinal axis, a tip end, a dispensing nozzle defined at the tip end, and an interior channel in flow communication with the dispensing nozzle. The tubular body is configured to be flexible. An actuator is configured to selectively modify an orientation of the tubular body, and a reservoir is in flow communication with the interior channel. The reservoir is configured to supply a maintenance fluid to the tubular body for discharge from the dispensing nozzle.
-
公开(公告)号：US20250035005A1
公开(公告)日：2025-01-30
申请号：US18536843
申请日：2023-12-12
Applicant: General Electric Company
Inventor： Deepak Trivedi , Rahul Anil Bidkar , Bugra Han Ertas , Ravindra Shankar Ganiger , Narendra Anand Hardikar
Abstract: A seal assembly for a turbomachine includes a rotating component, a non-rotating component having a ring carrier, a face seal ring, and a joint disposed between the ring carrier and the non-rotating component. The non-rotating component is arranged with the rotating component at a sealing interface. The joint is capable of linear and tilt displacement to allow the non-rotating component to displace with respect to the rotating component. The sealing interface defines a gap between the face seal ring and the rotating component. The seal assembly also includes at least one damping element arranged with the ring carrier for maintaining the seal assembly centrally in a radial direction in the turbomachine. Further, the damping element(s) includes at least one mass element.
-
Patent Agency Ranking
公开(公告)号：US12006829B1
公开(公告)日：2024-06-11
申请号：US18317229
申请日：2023-05-15
Applicant: General Electric Company
Inventor： David Raju Yamarthi , Ravindra Shankar Ganiger , Narendra Anand Hardikar , Rahul Anil Bidkar , Deepak Trivedi , Prateek Jalan
IPC: F01D11/16
CPC classification number: F01D11/16 , F05D2240/55 , F05D2260/38
Abstract: A turbomachine includes a rotor shaft having an outer surface, a seal carrier forming an annulus about the rotor shaft, and a seal member. The seal carrier at least partially defines a pressure chamber. The turbomachine further includes a seal member support system including a flex body having a contact portion in contact with the seal carrier, and a flex portion extending from the contact portion towards the outer surface of the rotor shaft. The flex portion is coupled to the seal member and is configured to hold the seal member at a radial distance away from the outer surface of the rotor shaft when a pressure inside the pressure chamber is equal to or below a minimum pressure threshold value, and to flex and move the seal member towards the outer surface of the rotor when the pressure inside the pressure chamber exceeds the minimum pressure threshold value.
-
公开(公告)号：US20240026799A1
公开(公告)日：2024-01-25
申请号：US17871063
申请日：2022-07-22
Applicant: General Electric Company
Inventor： Narendra Anand Hardikar , Deepak Trivedi , Ravindra Shankar Ganiger , Scott Alan Schimmels , Kevin Richard Graziano
CPC classification number: F01D11/02 , F01D11/12 , F05D2220/30 , F05D2240/55 , F05D2260/80
Abstract: A seal assembly at a rotor-stator interface includes at least one non-contacting seal interface and at least one rub detection feature. The rub detection feature(s) is configured to generate a signal upon the rotor and the stator making contact at the rotor-stator interface and causing wear above a certain threshold at the rotor-stator interface. The seal assembly also includes at least one sensor arranged at the rotor-stator interface. The sensor is configured to sense the signal. The seal assembly further includes a controller communicatively coupled with the sensor(s). The controller is configured to receive the signal and estimate at least one of an amount and a location of the wear at the rotor-stator interface based on the signal.
-
公开(公告)号：US11680645B2
公开(公告)日：2023-06-20
申请号：US17128422
申请日：2020-12-21
Applicant: General Electric Company
Inventor： Rahul Anil Bidkar , Christopher Edward Wolfe , Nathan Evan McCurdy Gibson , Rodrigo Rodriguez Erdmenger , Deepak Trivedi , Quang Tue Nguyen Tran
CPC classification number: F16J15/443 , F01D5/20 , F01D5/225 , F16J15/40 , F16J15/445 , F05D2220/30 , F05D2240/11 , F05D2240/128 , F05D2240/53 , F05D2240/55
Abstract: A seal assembly for a rotary machine is positioned between a rotating component and a stationary component of the rotary machine. The seal assembly includes a seal bearing face that opposes the rotating component and a slide device. The slide device is positioned between different fluid pressure volumes in the rotary machine. The slide device axially moves toward the rotating component responsive to pressurization of the rotary machine. The slide device includes cross-over ports and the seal bearing face includes feed ports. The feed ports extend through the seal bearing face to form an aerostatic portion of a film bearing between the seal bearing face and the rotating component. The seal bearing face and/or the rotating component is a non-planar surface that, during rotating motion of the rotating component, forms an aerodynamic portion of the film bearing between the seal bearing face and the rotating component.
-
公开(公告)号：US20230085301A1
公开(公告)日：2023-03-16
申请号：US17992395
申请日：2022-11-22
Applicant: General Electric Company
Inventor： Deepak Trivedi , Todd William Danko , Mark John Zajkowski , Don Mark Lipkin
Abstract: A system for use in servicing a machine. The system includes a tubular body including a longitudinal axis, a tip end, a dispensing nozzle defined at the tip end, and an interior channel in flow communication with the dispensing nozzle. The tubular body is configured to be flexible. An actuator is configured to selectively modify an orientation of the tubular body, and a reservoir is in flow communication with the interior channel. The reservoir is configured to supply a maintenance fluid to the tubular body for discharge from the dispensing nozzle.
-
公开(公告)号：US20220243612A1
公开(公告)日：2022-08-04
申请号：US17167435
申请日：2021-02-04
Applicant: General Electric Company
Inventor： Byron Andrew Pritchard, JR. , Deepak Trivedi , Ambarish Jayant Kulkarni , Michael Robert Millhaem
Abstract: An inflatable device equipped with a guiding mechanism and methods of installing the inflatable device to form a temporary barrier within a gas turbine engine are provided. In one aspect, an inflatable device includes a backbone and an inflatable bladder connected thereto. The backbone is formed of a flexible and inextensible material. The inflatable bladder is formed of an expandable material. To install the inflatable device within an annular chamber of a gas turbine engine, the backbone is inserted into a first access port of the engine and is moved circumferentially around the annulus of the chamber. The backbone is retrieved through a second access port. The inflatable bladder is moved into position within the chamber by pushing the backbone into the first access port and/or pulling the backbone out of the second access port. When positioned in place, the inflatable bladder is inflated to form an annular seal.
-
-
-
-
-
-
-
-
-
Search Results
88
records
(took 0.021 seconds)
