| 摘要 |
A compressor or displacement pump comprises a compression or displacement portion (1) driven through a crank shaft (16) by an electric motor (2) and an undivided casing (3) housing both the motor (2) and the compression or displacement portion (1), the casing having a lubricating oil bath (7) extending substantially the entire length of the casing (3) and into which the electric motor (2) dips. <IMAGE> |
