| 摘要 |
PURPOSE:To enable improving the efficiency of the hydraulic machine by providing a plurality of annular grooves which are mutually parallel to each other on the contact surface of the air guider and a fluid, and smoothing the flow of air in the vicinity of the contact surface so as to prevent the fluid from exfoliation. CONSTITUTION:A plurality of annular grooves 9 which are mutually parallel to each other, are provided on the inner surface which becomes a contact surface 8' of the air guider 8 and the air current. Accordingly, the air which is exfoliated or immediately before exoliation is attracted by the grooves 9 formed in the air guider 8. As a result, the laminar flow state of air passing the air guider 8 is maintained, and the friction which is affected by the exfoliation of the fluid on air is eliminated. Thus, the efficiency of the hydraulic machine is improved. |
