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公开(公告)号：JP2001289122A
公开(公告)日：2001-10-19
申请号：JP2001057733
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： REY NANCY M , ROBIN MIHEKUN MILLER , TILLMAN THOMAS G , RUKUS ROBERT M , KETTLE JOHN L , DUNPHY JAMES R , CHAUDHRY ZAFFIR A , PEARSON DAVID D , DREITLEIN KENNETH C , LOFFREDO CONSTANTINO V , WYNOSKY THOMAS A
Abstract: PROBLEM TO BE SOLVED: To provide a gas turbine engine with a variable area nozzle requiring no large-scale maintenance without largely increasing the total weight of the gas turbine engine. SOLUTION: The gas turbine engine 10 includes a variable area nozzle 30 having a plurality of flaps 38. The flaps 38 are actuated by a plurality of actuating mechanisms 40 to be driven by a shape memory alloy(SMA) actuator 68. The SMA actuator 68 has a deformed shape in a martensitic state and a basic shape in an austenitic state. The SMA actuator 68 is heated to transform from the martensitic state into the austenitic state generating a force to actuate the flaps 38. The variable area nozzle 30 also contains a plurality of return mechanisms 42 for deforming the SMA actuator 68 when in the martensitic state.
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公开(公告)号：JP2001304095A
公开(公告)日：2001-10-31
申请号：JP2001059797
申请日：2001-03-05
Applicant: UNITED TECHNOLOGIES CORP
Inventor： REY NANCY M , ROBIN MIHEKUN MILLER , TILLMAN THOMAS G , RUKUS ROBERT M , KETTLE JOHN L
Abstract: PROBLEM TO BE SOLVED: To increase force generated from an SMA material. SOLUTION: An SMA bundle 10 is formed of an individual SMA wire 12. This SMA bundle 10 has a base phase shape and a deformation shape, and outputs large force by returning to the base phase state by being heated in a deformation state. The SMA wire 12 for constituting the SMA bundle 10 can be constituted as a strand, a rope, a row or the other shape.
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Patent Agency Ranking
公开(公告)号：DE60112150D1
公开(公告)日：2005-09-01
申请号：DE60112150
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： REY NANCY M , MILLER ROBIN MIHEKUN , TILLMAN THOMAS G , RUKUS ROBERT M , KETTLE JOHN L , DUNPHY JAMES R , CHAUDHRY ZAFFIR A , PEARSON DAVID D , DREITLEIN KENNETH C , LOFFREDO CONSTANTINO V , WYNOSKY THOMAS A
Abstract: A gas turbine engine (10) includes a variable area nozzle (30) having a plurality of flaps (38). The flaps (38) are actuated by a plurality of actuating mechanisms (40) driven by shape memory alloy (SMA) actuators (68) to vary fan exist nozzle area (36). The SMA actuator (68) has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator (68) is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps (38). The variable area nozzle (30) also includes a plurality of return mechanisms (42) deforming the SMA actuator (68) when the SMA actuator (68) is in its martensitic state.
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公开(公告)号：DE60134347D1
公开(公告)日：2008-07-17
申请号：DE60134347
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： REY NANCY M , DUNPHY JAMES R , MILLER ROBIN MIHEKUN , CHAUDRY ZAFFIR A , TILMAN THOMAS G , PEARSON DAVID D , RUKUS ROBERT M , DREITLEIN KENNETH C , KETTLE JOHN L , LOFFREDO CONSTANTINTO , WYNOSKY THOMAS A
Abstract: A gas turbine engine (10) includes a variable area nozzle (30) having a plurality of flaps (38). The flaps (38) are actuated by a plurality of actuating mechanisms (40) driven by shape memory alloy (SMA) actuators (68) to vary fan exist nozzle area (36). The SMA actuator (68) has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator (68) is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps (38). The variable area nozzle (30) also includes a plurality of return mechanisms (42) deforming the SMA actuator (68) when the SMA actuator (68) is in its martensitic state.
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公开(公告)号：DE60112150T2
公开(公告)日：2006-03-30
申请号：DE60112150
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP
Inventor： REY NANCY M , MILLER ROBIN MIHEKUN , TILLMAN THOMAS G , RUKUS ROBERT M , KETTLE JOHN L , DUNPHY JAMES R , CHAUDHRY ZAFFIR A , PEARSON DAVID D , DREITLEIN KENNETH C , LOFFREDO CONSTANTINO V , WYNOSKY THOMAS A
Abstract: A gas turbine engine (10) includes a variable area nozzle (30) having a plurality of flaps (38). The flaps (38) are actuated by a plurality of actuating mechanisms (40) driven by shape memory alloy (SMA) actuators (68) to vary fan exist nozzle area (36). The SMA actuator (68) has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator (68) is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps (38). The variable area nozzle (30) also includes a plurality of return mechanisms (42) deforming the SMA actuator (68) when the SMA actuator (68) is in its martensitic state.
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公开(公告)号：DE60111095T2
公开(公告)日：2005-10-27
申请号：DE60111095
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP HARTF
Inventor： REY NANCY M , RUKUS ROBERT M , MILLER ROBIN MIHEKUN , KETTLE JOHN L , TILLMAN THOMAS G
Abstract: A self contained shape memory alloy (SMA) mechanism (50) is presented comprising a first anchor (52) and a second anchor (54) with a SMA actuator (56) and a return member (58) disposed therebetween. The SMA actuator (56) is a SMA bundle formed of single wires. The return member (58) is a linear spring surrounding the SMA actuator (56). Each mechanism (50) also includes a heating means. In operation, with the SMA actuator (56) in a martensitic state, the spring (58) of the mechanism (50) stretches the SMA actuator (56). When the SMA actuator (56) is heated to achieve its austenitic state, the force of the SMA actuator overcomes the force of the spring and pulls the anchors (52,54) thereby actuating at least one of the anchors (52,54). One major benefit of the mechanisms (50) is the ability to repeatably generate high active force in a compact package.
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公开(公告)号：DE60111095D1
公开(公告)日：2005-07-07
申请号：DE60111095
申请日：2001-03-02
Applicant: UNITED TECHNOLOGIES CORP HARTF
Inventor： REY NANCY M , RUKUS ROBERT M , MILLER ROBIN MIHEKUN , KETTLE JOHN L , TILLMAN THOMAS G
Abstract: A self contained shape memory alloy (SMA) mechanism (50) is presented comprising a first anchor (52) and a second anchor (54) with a SMA actuator (56) and a return member (58) disposed therebetween. The SMA actuator (56) is a SMA bundle formed of single wires. The return member (58) is a linear spring surrounding the SMA actuator (56). Each mechanism (50) also includes a heating means. In operation, with the SMA actuator (56) in a martensitic state, the spring (58) of the mechanism (50) stretches the SMA actuator (56). When the SMA actuator (56) is heated to achieve its austenitic state, the force of the SMA actuator overcomes the force of the spring and pulls the anchors (52,54) thereby actuating at least one of the anchors (52,54). One major benefit of the mechanisms (50) is the ability to repeatably generate high active force in a compact package.
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