초록 ▼

In a gas-cooled electrical machine having an axial fan (12a) and a downstream guidance mechanism, arranged downstream of the axial fan, in order to raise the pressure of a cooling gas, the cooling gas is driven in a forced manner by means of the axial fan from an inlet area (41), which is bounded by

In a gas-cooled electrical machine having an axial fan (12a) and a downstream guidance mechanism, arranged downstream of the axial fan, in order to raise the pressure of a cooling gas, the cooling gas is driven in a forced manner by means of the axial fan from an inlet area (41), which is bounded by an inner casing (21) and a partition wall (20) arranged in the radial plane of the axial fan (12a), into an outlet area (42) which is bounded by the partition wall (20) and an outer casing (37). In this case, the downstream guidance mechanism is designed as a deflection diffusor (36) in order to deflect a cooling-gas flow (39) from an essentially axial flow direction to an essentially radial flow direction.

대표청구항 ▼

1. Gas-cooled electrical machine, comprising:an axial fan, an upstream guidance mechanism and a downstream guidance mechanism, arranged upstream and downstream of the axial fan, respectively, in order to raise the pressure of a cooling gas, in which case the cooling gas can be driven in a forced man

1. Gas-cooled electrical machine, comprising:an axial fan, an upstream guidance mechanism and a downstream guidance mechanism, arranged upstream and downstream of the axial fan, respectively, in order to raise the pressure of a cooling gas, in which case the cooling gas can be driven in a forced manner by means of the axial fan from an inlet area, which is bounded by an inner casing and a partition wall arranged in the radial plane of the axial fan, into an outlet area which is bounded by the partition wall and an outer casing, wherein the upstream guidance mechanism is designed as a diffusor in order to deflect a cooling gas flow from essentially a radial flow direction to an essentially axial flow direction and the downstream guidance mechanism is designed as a deflection diffusor in order to deflect a cooling-gas flow from an essentially axial flow direction to an essentially radial flow direction.