Scroll type hydraulic machine

申请号 JP14399291 申请日 1991-05-20 公开(公告)号 JPH04342801A 公开(公告)日 1992-11-30
申请人 Tokico Ltd; 发明人 MIZUSHIMA YOSHIHIKO;
摘要 PURPOSE: To enhance the workability and the assembling performance by reducing the length of the rotary shaft of a motor and the length of a bearing section of a casing.
CONSTITUTION: A pulley 28 is fitted on the intermediate part of a drive shaft 23 at a position between a bearing part 22B of a casing 22 and a centrifugal fan 27. Accordingly, the pulley 28 can be attached at a position near to the bearing part 22B of the casing 22, distant from the proximal end of the drive shaft 23 by a length ΔL which is substantially equal to the axial length of the centrifugal fan 27. Accordingly, the length M1 of the rotary axis 30A of an electric motor 30 and the length L1 of the bearing part of the casing 22 can also be shortened. Further, the outside air is fed into a fan storage part 26A within an air duct 26, from air intake ports 26C. Further, the centrifugal fan 27 is rotated by the drive shaft 23 so as to generate cooling air which is discharged from discharge ports 26D through a discharge pipe 26B, thereby a turning side heat radiation fins 19, and stationary side heat radiation fins 20 are cooled.
COPYRIGHT: (C)1992,JPO&Japio
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