| 摘要 |
The invention relates to an electric motor (1) having a coaxially arranged pump (6) for a coolant circuit, in particular in a system with temperature transfer or heat transfer. Within housing parts (7, 10) which are configured as a hermetically sealed pressure enclosure, a shaft assembly (5) transmits a torque from the electric motor (1) to at least one impeller (8) which is arranged in the pump housing (7), and a flywheel (12) is arranged between the electric motor (1) and the pump housing (7). All the rotating parts are arranged within a hermetically sealed motor/pump assembly, and the motor/pump assembly is filled with fluid. Here, the flywheel (12) comprises a flywheel body (13) having a multiplicity of cavities (16, 17) and having heavy-metal inserts (16, 17) which are arranged in the cavities. A heavy metal having a density of greater than 11.0 (kg/dm^3) forms the heavy-metal inserts or is arranged therein, and the flywheel body (13) is composed of a high-strength material. |
