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公开(公告)号：SG11201600235TA
公开(公告)日：2016-02-26
申请号：SG11201600235T
申请日：2014-07-11
Applicant: UNITED TECHNOLOGIES CORP
Inventor： MARCIN JR JOHN J , BULLIED STEVEN J , SHAH DILIP M , CETEL ALAN D
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公开(公告)号：DE60239112D1
公开(公告)日：2011-03-17
申请号：DE60239112
申请日：2002-10-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , THOMPSON BEALS JAMES , MARCIN JOHN JOSEPH JR , MURRAY STEPHEN DOUGLAS
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公开(公告)号：DE602004028203D1
公开(公告)日：2010-09-02
申请号：DE602004028203
申请日：2004-10-15
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BEALS JAMES T , PERSKY JOSHUA , SHAH DILIP M , SEETHARAMAN VENKAT , BOSE SUDHANGSHU , SNYDER JACOB , SANTELER KEITH , VERNER CARL , MURRAY STEPHEN D , MARCIN JOHN J , GUPTA DINESH , BALES DANIEL A , PAULONIS DANIEL F , COTNOIR GLENN , WIEDEMER JOHN
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公开(公告)号：DE60224631T2
公开(公告)日：2008-12-24
申请号：DE60224631
申请日：2002-10-23
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , MARCIN JOHN JOSEPH JR , THOMPSON BEALS JAMES , MURRAY STEPHEN DOUGLAS
Abstract: Concepts for fabricating improved cores for investment casting are described. The cores are composite and include refractory metal elements (200,202,204,206,208,210,212,214,216) and ceramic elements (120). The refractory metal elements are provided to enhance the mechanical properties of the core and/or to permit the fabrication of cores having shapes and geometries that could not otherwise be achieved. In one embodiment, the entire core may be made of refractory metal components. The cores may be used to investment cast gas turbine superalloy components.
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公开(公告)号：DE60229489D1
公开(公告)日：2008-12-04
申请号：DE60229489
申请日：2002-12-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： CLEMENS READE , SHAH DILIP M , ROE DAVID LEE
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Patent Agency Ranking
公开(公告)号：DE60323181D1
公开(公告)日：2008-10-09
申请号：DE60323181
申请日：2003-06-10
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , BEALS JAMES T , PIETRUSKA NORMAN , SZELA EDWARD R
IPC: B23K9/04 , B23P6/04 , B23K10/02 , B23K26/34 , B23K37/06 , B23P6/00 , C23C28/00 , F01D5/00 , F01D5/18 , F01D5/28 , F02C7/00
Abstract: The present invention relates to a method for repairing components such as blades used in turbine engines. The method comprises the steps of placing a piece of refractory metal material (16) over an area of the component to be repaired (12) and depositing a repair filler metal material (20) over the piece of refractory material (16) in an amount sufficient to repair the component and welding the repair filler metal material (20) in place. The refractory metal material (16) may be selected from the group consisting of niobium, tantalum, molybdenum, tungsten, a metal having a melting point higher than the melting point of nickel, and alloys thereof and may be uncoated or coated.
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公开(公告)号：AT406230T
公开(公告)日：2008-09-15
申请号：AT03253664
申请日：2003-06-10
Applicant: UNITED TECHNOLOGIES CORP
Inventor： SHAH DILIP M , BEALS JAMES T , PIETRUSKA NORMAN , SZELA EDWARD R
IPC: B23K9/04 , B23P6/04 , B23K10/02 , B23K26/34 , B23K37/06 , B23P6/00 , C23C28/00 , F01D5/00 , F01D5/18 , F01D5/28 , F02C7/00
Abstract: The present invention relates to a method for repairing components such as blades used in turbine engines. The method comprises the steps of placing a piece of refractory metal material (16) over an area of the component to be repaired (12) and depositing a repair filler metal material (20) over the piece of refractory material (16) in an amount sufficient to repair the component and welding the repair filler metal material (20) in place. The refractory metal material (16) may be selected from the group consisting of niobium, tantalum, molybdenum, tungsten, a metal having a melting point higher than the melting point of nickel, and alloys thereof and may be uncoated or coated.
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公开(公告)号：DE60022300D1
公开(公告)日：2005-10-06
申请号：DE60022300
申请日：2000-12-12
Applicant: UNITED TECHNOLOGIES CORP
Inventor： ALLEN WILLIAM PATRICK , SHAH DILIP M , OLSON WALTER E , CETEL ALAN DAVID
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公开(公告)号：CA2484564A1
公开(公告)日：2005-04-15
申请号：CA2484564
申请日：2004-10-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BOSE SUDHANGSHU , SEETHARAMAN VENKAT , VERNER CARL , SANTELER KEITH , SNYDER JACOB , WIEDEMER JOHN , COTNOIR GLENN , PAULONIS DANIEL FRANCIS , BALES DANIEL A , MURRAY STEPHEN D , BEALS JAMES T , GUPTA DINESH , PERSKY JOSHUA , SHAH DILIP M , MARCIN JOHN J
Abstract: A refractory metal core for use in a casting system has a coating for providing oxidation resistance during shell fire and protection against reaction/dissolution during casting. In a first embodiment, the coating comprises at least one oxide and a silicon containing material. In a second embodiment, the coating comprises an oxide selected from the group consisting of calcia, magnesia, alumina, zirconia, chromic, yttria , silica, hafnia, and mixtures thereof. In a third embodiment, the coating comprises a nitride selected from the group consisting of silicon nitride, sialon, titanium nitride, and mixtures thereof. Other coating embodiments are described in the disclosure.
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公开(公告)号：SG10201610144XA
公开(公告)日：2017-01-27
申请号：SG10201610144X
申请日：2013-12-13
Applicant: UNITED TECHNOLOGIES CORP
Inventor： BULLIED STEVEN J , SHAH DILIP M , CETEL ALAN D , MARCIN JOHN J
Abstract: An alloy part is cast in a mold (280) having a part-forming cavity (292, 294, 296). The method comprises pouring a first alloy into the mold. The pouring causes: a surface (550) of the first alloy in the part-forming cavity to raise relative to the part-forming cavity; a branch flow of the poured first alloy to pass upwardly through a first portion (304) of a passageway; and the branch flow to pass downwardly through a second portion (310), of the passageway; solidifying some of the first alloy in the passageway to block the passageway while at least some of the first alloy in the part-forming cavity remains molten. A second alloy is poured into the mold atop the first alloy and solidified.
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