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公开(公告)号：US20210285330A1
公开(公告)日：2021-09-16
申请号：US16816568
申请日：2020-03-12
发明人： Andrew Clifford Hart , Jing Li , Suryarghya Chakrabarti , James Tyson Balkcum, III , Markus Feigl
摘要： The present embodiments set forth a blade including an airfoil, the airfoil including a tip cap, a pressure sidewall and a suction sidewall extending axially between corresponding leading and trailing edges and radially between the base and the tip cap. The blade, including the airfoil and base, being formed in at least two airfoil parts, each of the two airfoil parts including contacting edges engaging each other respective contacting edges, the contacting edges defining a joint for preloading each of the at least two parts with each other and with the base. The at least two airfoil parts forming the airfoil being retained to each other by an interference fit at the joint. The interference fit providing frictional damping of vibrations in the blade during blade operation.
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公开(公告)号：US11441427B1
公开(公告)日：2022-09-13
申请号：US17245002
申请日：2021-04-30
摘要： A rotor blade includes an airfoil having an airfoil shape. The airfoil shape has a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I. The Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances expressed in a unit of distance by multiplying the Cartesian coordinate values of X, Y and Z by a scaling factor of the airfoil in the unit of distance. The X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each Z value. The airfoil profile sections at Z values are joined smoothly with one another to form a complete airfoil shape.
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公开(公告)号：US11339665B2
公开(公告)日：2022-05-24
申请号：US16816568
申请日：2020-03-12
发明人： Andrew Clifford Hart , Jing Li , Suryarghya Chakrabarti , James Tyson Balkcum, III , Markus Feigl
摘要： The present embodiments set forth a blade including an airfoil, the airfoil including a tip cap, a pressure sidewall and a suction sidewall extending axially between corresponding leading and trailing edges and radially between the base and the tip cap. The blade, including the airfoil and base, being formed in at least two airfoil parts, each of the two airfoil parts including contacting edges engaging each other respective contacting edges, the contacting edges defining a joint for preloading each of the at least two parts with each other and with the base. The at least two airfoil parts forming the airfoil being retained to each other by an interference fit at the joint. The interference fit providing frictional damping of vibrations in the blade during blade operation.
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公开(公告)号：US11293454B1
公开(公告)日：2022-04-05
申请号：US17244989
申请日：2021-04-30
发明人： Paul G. Deivernois , Marcus Edward Blohm , Michael James Dutka , Andrew Clifford Hart , Steven Lynn Huskins , Aaron David Williamson , Corey Lynn Hubbert , Venkata Siva Prasad Chaluvadi , Brandon Lamar Bush , Jeremy Peter Latimer
摘要： A stator vane includes an airfoil having an airfoil shape. The airfoil shape having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in one of Table I, Table II, Table III, Table IV, Table V, Table VI, Table VII, or Table VIII. The Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances expressed in a unit of distance by multiplying the Cartesian coordinate values of X, Y and Z by a scaling factor of the airfoil in the unit of distance. The X and Y values, when connected by smooth continuing arcs, define airfoil profile sections at each Z value. The airfoil profile sections at Z values being joined smoothly with one another to form a complete airfoil shape.
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公开(公告)号：US11339666B2
公开(公告)日：2022-05-24
申请号：US16851629
申请日：2020-04-17
发明人： Andrew Clifford Hart , John McConnell Delvaux , Joseph Anthony Weber , James Zhang , Peter de Diego
摘要： An article, such as a turbine blade, includes an airfoil. The airfoil includes a body, the body having an elongated internal cavity extending from a tip of the body. The cavity is defined an internal wall within the body. At least one elongated damping element is disposed in the elongated internal cavity and frictionally engages the internal wall. Thus, the least one elongated damping element is capable of damping vibrations in the article.
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公开(公告)号：US20210324743A1
公开(公告)日：2021-10-21
申请号：US16851629
申请日：2020-04-17
发明人： Andrew Clifford Hart , John McConnell Delvaux , Joseph Anthony Weber , James Zhang , Peter de Diego
摘要： An article, such as a turbine blade, includes an airfoil. The airfoil includes a body, the body having an elongated internal cavity extending from a tip of the body. The cavity is defined an internal wall within the body. At least one elongated damping element is disposed in the elongated internal cavity and frictionally engages the internal wall. Thus, the least one elongated damping element is capable of damping vibrations in the article.
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