| 摘要 |
The invention concerns a pump for conveying hot media, said pump comprising a pump housing, a seal housing (13, 14) disposed at a distance from the pump housing and connected thereto, a bearing housing (19) connected to the pump housing via a Chinese lantern-shaped structure (7, 17, 18) and disposed at a spacing from the seal housing, a fan wheel (22) disposed in the spacing, and a shaft (4) which penetrates these parts. The cooling of the seal housing (13, 14) and of the bearing housing (19) is improved in that the delivery direction of the fan wheel (22) extends from the pump to the bearing housing (19). The drive motor can be screened from the heated air flow by the bearing housing (19). Owing to a heat-insulating device (10) on the pump housing, the cooling air flow is not heated substantially before it reaches the seal housing (13, 14). A protective plate (23) surrounding the fan (22) and the seal housing (13, 14) is used to guide the air such that the air drawn in first flows radially to the seal housing (13, 14) and is then deflected axially.
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