Housing for electrical machines

摘要

A housing for a rotating electrical machine is disclosed. The housing (14, 16) comprises a cooling passage (26) for cooling the machine. A removable manifold (50) is provided, the removable manifold comprising an inlet and outlet for the cooling passage. The housing is arranged such that the removable manifold can be located at a plurality of different positions around the machine. An arrangement with a hollow rotor hub is also disclosed. The invention can allow the design of the machine to be adjusted to fit different applications.