skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Transition duct assembly with modified trailing edge in turbine system

Patent ·
OSTI ID:1327923

Transition duct assemblies for turbine systems and turbomachines are provided. In one embodiment, a transition duct assembly includes a plurality of transition ducts disposed in a generally annular array and comprising a first transition duct and a second transition duct. Each of the plurality of transition ducts includes an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of each transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The transition duct assembly further includes an aerodynamic structure defined by the passages of the first transition duct and the second transition duct. The aerodynamic structure includes a pressure side, a suction side, and a trailing edge, the trailing edge having a modified aerodynamic contour.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
9,458,732
Application Number:
14/063,358
OSTI ID:
1327923
Resource Relation:
Patent File Date: 2013 Oct 25
Country of Publication:
United States
Language:
English

References (54)

Lobe mixer for gas turbine engine patent April 1979
Aft mounting system for combustion transition duct members patent December 1983
Stator vane patent May 1988
Curvilinear turbine airfoil patent May 1989
Airfoil-shaped body patent May 1989
Profile matched diffuser patent January 1992
Convoluted diffuser patent May 1992
Leaf seals patent June 1992
Gas turbine vane assembly seal and support system patent September 1992
Turbine nozzle seal arrangement patent October 1993
Integral aft frame mount for a gas turbine combustor transition piece patent May 1995
Rolling contact mounting arrangement for a ceramic combustor patent October 1995
Gas turbine diffuser patent January 1997
Transition piece external frame support patent June 1998
Mixing ducts for a gas-turbine annular combustion chamber patent November 1998
Gas-path leakage seal for a turbine patent August 1999
Tail pipe of gas turbine combustor and gas turbine combustor having the same tail pipe patent November 1999
Gas turbine combustor with angled tube section patent December 1999
Interstage van seal apparatus patent June 2000
Tangentially aligned pre-mixing combustion chamber for a gas turbine patent March 2001
Seal patent March 2001
Chevron exhaust nozzle for a gas turbine engine patent March 2002
Leaf seal for inner and outer casings of a turbine patent August 2002
Seal between static turbine parts patent August 2002
Three degrees of freedom aft mounting system for gas turbine transition duct patent September 2002
Integrated duct diffuser patent October 2002
Supplemental seal for the chordal hinge seal in a gas turbine patent March 2003
Apparatus for forming a combustion mixture in a gas turbine engine patent May 2003
Leaf seal support for inner band of a turbine nozzle in a gas turbine engine patent November 2003
Transition duct mounting system patent December 2003
Dynamically uncoupled can combustor patent January 2005
Combined cycle engines incorporating swirl augmented combustion for reduced volume and weight and improved performance patent June 2005
Multi-axial pivoting combustor liner in gas turbine engine patent March 2006
Combustor attachment with rotational joint patent April 2006
Apparatus, method and system for gas turbine engine noise reduction patent January 2007
Diffuser for gas turbine engine patent February 2007
HPT aerodynamic trip to improve acoustic transmission loss and reduce noise level for auxiliary power unit patent May 2009
Methods and system for reducing pressure losses in gas turbine engines patent August 2009
Support system for transition ducts patent September 2009
Methods and apparatuses for assembling a gas turbine engine patent December 2009
Combustion transition duct providing stage 1 tangential turning for turbine engines patent May 2010
Systems and methods for reducing noise from jet engine exhaust patent June 2011
Transition with a linear flow path with exhaust mouths for use in a gas turbine engine patent November 2011
Methods, apparatus and systems concerning the circumferential clocking of turbine airfoils in relation to combustor cans and the flow of cooling air through the turbine hot gas flowpath patent January 2012
Canted outlet for transition in a gas turbine engine patent January 2012
Transition with a linear flow path for use in a gas turbine engine patent February 2012
Aircraft wing patent July 2012
Transition duct assembly patent December 2012
Combustion transition duct providing stage 1 tangential turning for turbine engines patent-application January 2007
Integrated Combustor and Stage 1 Nozzle in a Gas Turbine and Method patent-application May 2010
Structural Attachment System for Transition Duct Outlet patent-application July 2010
Tangential Combustor patent-application October 2011
Load Member For Transition Duct In Turbine System patent-application December 2012
Mount Device for Transition Duct in Turbine System patent-application December 2012