Aft mounting system for combustion transition duct members
First Claim
1. A support system for attaching the aft end of a gas turbine combustion transition duct member to a functionally related structural member comprising:
- (a) a cylindrical shaped base member contoured to mate with the surface of said transition duct member and rigidly attached thereto;
(b) a pivoting hinge assembly comprising;
(i) boss means rigidly attached to said base member;
(ii) a bracket having a first end adapted to be nested with said boss means and to be nested with said boss means and a second end adapted to be attached to said functionally related structural member;
(iii) interconnecting means fitted through said boss and said bracket for retaining said boss means and said bracket in close cooperating relationship, and providing a pivot axis for enabling pivotal relative motion therebetween; and
(iv) said interconnecting means being configured to apply a predetermined force between said boss means and said bracket to resist, in controlled part, said pivotal relative motion.
1 Assignment
0 Petitions
Accused Products
Abstract
A structural support system for the aft end of advanced design combustion transition duct members of specially configured to withstand high temperature gradients and mechanical loads developed in heavy-duty cannular gas turbine combustion systems. A composite element support system is provided for each transition duct member wherein one end of a cylindrical base element is contoured for and welded to the outer wall of its associated transition duct member, while its other end carries a hinge joint of special design to interconnect the transition duct member to a desired mounting member. The circular footprint of the cylindrical base element on the transition duct member wall is configured to minimize thermal and mechanical stresses especially in the weld joint region, while the hinge joint allows relative movement of the connected parts about a desired axis. Additionally, a hinge joint through bolt is torqued to a predetermined value to dampen out unwanted mechanical vibrations.
124 Citations
18 Claims
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1. A support system for attaching the aft end of a gas turbine combustion transition duct member to a functionally related structural member comprising:
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(a) a cylindrical shaped base member contoured to mate with the surface of said transition duct member and rigidly attached thereto; (b) a pivoting hinge assembly comprising; (i) boss means rigidly attached to said base member; (ii) a bracket having a first end adapted to be nested with said boss means and to be nested with said boss means and a second end adapted to be attached to said functionally related structural member; (iii) interconnecting means fitted through said boss and said bracket for retaining said boss means and said bracket in close cooperating relationship, and providing a pivot axis for enabling pivotal relative motion therebetween; and (iv) said interconnecting means being configured to apply a predetermined force between said boss means and said bracket to resist, in controlled part, said pivotal relative motion. - View Dependent Claims (2, 3, 4, 5)
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6. An improved support system for the aft end of combustion transition ducts of a gas turbine comprising:
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(a) a cylindrically shaped base member contoured to mate with the radially outboard surface of the aft end of a transition duct member and being attached thereto; (b) a hinge assembly comprising; (i) at least one boss member rigidly attached to said base member; (ii) a bracket shaped to cooperatively nest with said at least one boss member at a first bracket end, and rigidly attached via a second bracket end to a selected supporting member within said gas turbine; (iii) interconnecting means fitted through said boss member and said bracket for retaining said boss member and said bracket in close cooperating nested relationship, and providing a pivot axis for enabling pivotal relative motion therebetween. (iv) said interconnecting means configured to apply a predetermined force between said boss member and said bracket to resist, in controlled part, said pivotal relative motion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification