Abstract: A blade for a turbomachine includes an airfoil portion and a root portion, the airfoil portion has an outer wall having a pressure side, suction side, leading edge and trailing edge, the outer wall extending between the leading edge and a trailing edge of the airfoil portion, a first cavity between the pressure side of the outer wall and a first inner wall, a second cavity between the suction side of the outer wall and a second inner wall. The first and second inner wall form a receiving cavity therebetween. The receiving cavity is fluidly connected to both the first and second cavity. The cooling fluid in the first and second cavity is conducted in a direction from the trailing edge to the leading edge and the cooling fluid in the receiving cavity is conducted in a direction from the leading edge to the trailing edge.

Abstract: A turbine blade with a cooling arrangement is provided. The turbine blade includes at least one supply chamber and at least one impingement cavity. The supply chamber includes multiple impingement channels configured to direct a cooling fluid from within the supply chamber to the impingement cavity. The supply chamber also includes one or more collector channels such that the cooling fluid from the impingement cavity is directed to a collector cavity within the turbine blade.

Abstract: A turbine blade with a cooling arrangement is provided. The turbine blade includes at least one supply chamber and at least one impingement cavity. The supply chamber includes multiple impingement channels configured to direct a cooling fluid from within the supply chamber to the impingement cavity. The supply chamber also includes one or more collector channels such that the cooling fluid from the impingement cavity is directed to a collector cavity within the turbine blade.

Abstract: A blade for a turbomachine includes an airfoil portion and a root portion, the airfoil portion has an outer wall having a pressure side, suction side, leading edge and trailing edge, the outer wall extending between the leading edge and a trailing edge of the airfoil portion, a first cavity between the pressure side of the outer wall and a first inner wall, a second cavity between the suction side of the outer wall and a second inner wall. The first and second inner wall form a receiving cavity therebetween. The receiving cavity is fluidly connected to both the first and second cavity. The cooling fluid in the first and second cavity is conducted in a direction from the trailing edge to the leading edge and the cooling fluid in the receiving cavity is conducted in a direction from the leading edge to the trailing edge.

Abstract: An airfoil having cooling passages inside is provided, wherein each radial cross section of the airfoil has a shape of specific profile, wherein hot gas flows along the airfoil's surface from a leading edge to trailing edge, the airfoil's surface comprises a pressure-side and suction-side defined by the trailing edge and leading edge, wherein the trailing edge has cooling fluid discharge exits, the pressure-side and suction-side are respectively defined by a wall comprising an inner surface and an outer surface, which inner surface has ribs extending in a rib-direction inclined to the radial direction, wherein along a portion of at least 10% of the profile's lengths the inclined ribs contact each other at respective cross-contact-points, forming a 2-dimensional matrix. At least one additional blocking-rib extends from the pressure-side to the suction-side and extends from one cross-contact-point to another to cause additional turbulence of said cooling fluid flow to be discharged.