| 摘要 |
<p>A diffuser plate 14 for a flow-through vacuum cleaner motor has a plurality of passage openings 47 on one side of the plate adjacent an impeller. The passage openings 47 lead air from the impeller to the other side of the diffuser plate 14 where pathways are defined by channels 50 in the plate 14. The channels 50 define blind passages which direct the air radially inward and circumferentially, and then axially in separate air flows through different parts of the motor for cooling. Part of the air may be directed through the motor housing without having any cooling effect. There is a further claim for a vacuum cleaner motor characterised by the diffuser plate of the invention.</p> |
