摘要:
Disclosed is a turbo-engine component comprising a wall (100), the wall (100) comprising a hot gas side surface (110) and a coolant side surface (120). At least one coolant discharge duct (210) is provided in said wall (100) and opening out onto the hot gas side surface (110) at a coolant discharge opening (214). A coolant flow direction is defined from the interior of the coolant discharge duct (210) towards the discharge opening (214), the coolant discharge duct (210) further being delimited by a delimiting surface thereof provided inside the wall (100). The coolant discharge duct (210) has a first cross sectional direction and a second cross sectional direction. The coolant discharge duct (210) is a blind cavity and is closed towards the coolant side surface (120), and further a dimension of the coolant discharge duct (210) measured in the first cross sectional direction decreases in the coolant flow direction.
摘要:
In a blading member for a fluid flow machine, the blading member comprising a platform member (2) and at least one airfoil member (1), the platform member comprising a platform member receiver section (6), said platform member receiver section comprising a first face (7) and a second face (8), and a platform member receiver opening (5) being disposed in the receiver section, the receiver opening extending from the first face, the airfoil member extending from an airfoil base (16) to an airfoil tip and comprising an airfoil member foot section (4) and an airfoil member aerodynamic section (3), wherein the airfoil member foot section extends from the airfoil base to the airfoil member aerodynamic section and the airfoil member aerodynamic section extends from the airfoil member foot section to the airfoil tip, the airfoil member foot section comprising an airfoil member male mating section (14) received within the platform member receiver opening (5) and the airfoil member aerodynamic section projecting from the first face (7) of the platform member receiver section, at least one support shoulder (12) is disposed on the airfoil foot section (4) and a counterpart support shoulder (13) is disposed on the platform member, wherein the support shoulder and the counterpart support shoulder abut each other, one support shoulder and a corresponding counterpart support shoulder are beveled, wherein the bevel angles (a) of said support shoulder and said corresponding counterpart support shoulder are identical at least at corresponding mating points.
摘要:
A turboengine blading member (1) is disclosed. The blading member comprises at least one airfoil (2) and at least one platform (31) provided at at least one of a base and a tip of the airfoil (2). The airfoil (2) comprising a profile body (23), a leading edge (21) provided at a first side of the profile body (23), and a trailing edge section (24) extending from a second side of the profile body (23) and opposite the leading edge (21). The profile body (23) is connected to the at least one platform (31). The trailing edge section (24) cantilevers from the profile body (23) and is provided without connection to the platform (31).
摘要:
Disclosed is a method for cooling a turbo-engine component, the method comprising guiding a working fluid flow (50) along a hot gas side surface (110) of a wall (100) of the component and in a main working fluid flow direction, discharging a coolant discharge flow (350) at the hot gas side surface (110) from a coolant discharge duct (210) provided in the wall (100), supplying a coolant supply flow (310) to the coolant discharge duct (210) and through a coolant supply path, characterized in discharging the coolant supply flow (310) into the coolant discharge duct (210) as a free jet (340) oriented across a cross section of the coolant discharge duct (210), and directing the free jet (340) onto an inner surface section (211) of the coolant discharge duct (210), thus effecting impingement cooling of the inner surface section (211). Further disclosed is a turbo-engine component adapted and configured to perform the method.
摘要:
A multi-airfoil guide vane unit (1) comprises a first platform member (14), a second platform member (15), and at least two airfoil members (11, 12, 13), the airfoil members having a longitudinal extent along an airfoil span width and two longitudinal ends, wherein all airfoil members are rigidly affixed to a platform member at a first longitudinal end and at least one airfoil member (11, 13) is rigidly affixed to both platform members at both longitudinal ends. At least one of the airfoil members (12) is floatingly connected to one of the platform members (14) at a second longitudinal end (121). A longitudinally floating joint arrangement is thus provided between the second longitudinal end (121) of the airfoil member 812) and the platform member, such as to allow displacement of the airfoil member (12) relative to said platform member (14) along the longitudinal extent (2) of said airfoil member (12). In particular, the floating joint arrangement comprises a male joint feature (123) provided at one of the second longitudinal end (121) of the airfoil member and the platform member (14) and a female joint feature (141) provided at the other one of the second longitudinal end of the airfoil member and the platform member, the male feature being received within said female feature.
摘要:
The invention relates to a method for manufacturing a metal-ceramic composite structure (20) intended to be exposed to high temperatures, comprising a base metal structure or component (19), which is on at least one side covered and permanently joined with one or more ceramic tiles (11). To simplify the process without sacrificing stability said method comprises the steps of: a) manufacturing one or more green bodies with cavities (12) extending from the surface on one side of said green bodies into the interior of said green bodies and sintering said green bodies to receive one or more ceramic tiles (11) with respective cavities (12); b) arranging said ceramic tiles (11) in a cast mould (17); c) pouring liquid metal into said cast mould (17) at a temperature and pressure that said cavities (12) of said ceramic tiles (11) are filled completely or to a great extent in order to either fabricate said base metal structure or component (19) directly, or least an intermediate metal layer to be joined with said base metal structure or component; and d) after solidification of said poured-in metal taking the resulting metal-ceramic structure with its mechanical interlocks between said ceramic tiles (11) and said base metal structure or component (19), or said intermediate metal layer, out of said cast mould (17).