Patent ID: 7427188
Filing Date: 2008-09-23
Classification: F01D,F05D,Y02T

Abstract:
1. A turbomachine blade, comprising: a blade root; a blade tip; an airfoil extending between the blade root and the blade tip in a blade longitudinal direction and having a suction side and a pressure side; a shroud element disposed on the blade tip; at least one throughflow passage disposed inside the airfoil and extending in the blade longitudinal direction; a shroud cooling passage disposed in the shroud element along a section of the shroud element, the shroud cooling passage being connected via an inflow opening and an outflow opening to the at least one throughflow passage, wherein a cooling fluid flows through the shroud cooling passage during operation of the turbomachine blade, from the inflow opening to the outflow opening; at least one flow-guiding element configured to guide at least some of the cooling fluid flowing through the shroud cooling passage, the at least one flow guiding element disposed in at least one of the shroud cooling passage, a region of the inflow opening, and a region of the outflow opening; and at least one opening communicating with a blade surroundings disposed in the shroud cooling passage, wherein the cooling fluid flows from the shroud cooling passage into the blade surroundings during operation of the turbomachine blade.