초록 ▼

A turbomachine has at least one rotor blade row designed for extremely high work coefficients (high-load), which—in its center section and/or averaged over the blade height—provides for an essentially swirl-free relative outflow. The respective rotor in its trailing edge area is essentially orientat

A turbomachine has at least one rotor blade row designed for extremely high work coefficients (high-load), which—in its center section and/or averaged over the blade height—provides for an essentially swirl-free relative outflow. The respective rotor in its trailing edge area is essentially orientated in meridional direction, with the mean or averaged exit metal angle of the rotor blade ranging from −10 to +5 degrees.

대표청구항 ▼

What is claimed is: 1. A turbomachine having at least one high load blade row of rotor blades designed for work coefficients defined by a specific enthalpy transformation Δh relative to a square of a rotor blade velocity U, which, in at least one of its center section and averaged over a blade heigh

What is claimed is: 1. A turbomachine having at least one high load blade row of rotor blades designed for work coefficients defined by a specific enthalpy transformation Δh relative to a square of a rotor blade velocity U, which, in at least one of its center section and averaged over a blade height, provides for an essentially swirl-free relative outflow, wherein the respective rotor blades in their trailing edge area are essentially orientated in a meridional direction m, with at least one of entry metal angles of the rotor blades at the center section ε1m and entry metal angles of the rotor blades averaged over the height of the rotor blades ε1G being >40 degrees and at least one of exit metal angles of the rotor blades at the center section ε2M and exit metal angles of the rotor blades averaged over the height of the rotor blades ε2G ranging from −10 to +5 degrees;wherein, a center line between a pressure side (DS) and a suction side (SS) of a blade profile, determined in a plane of a section of the blade profile, forms a profile skeleton line, with tangents TVK and THK drawn to the profile skeleton line at leading and trailing edge points (VK, HK) to quantify an orientation of the profile, the entry metal angles being established between tangent TVK and the meridional direction m, the exit metal angles between the tangent THK and the meridional direction m.