| 摘要 |
PCT No. PCT/JP79/00105 Sec. 371 Date Feb. 14, 1980 Sec. 102(e) Date Feb. 7, 1980 PCT Filed Apr. 24, 1979 PCT Pub. No. WO80/00096 PCT Pub. Date Jan. 24, 1980.A rotary piston pump of the axial type with fixed cylinders wherein a flywheel of rotary drum shape is anchored to a driving shaft (1) coaxially, on the circular side of said wheel being engraved one continuous oblique groove which takes the form of one cycle sine curve on the development view of the circular side, while outer ends of piston rods of pistons in the cylinders are connected with the oblique groove. The pistons or plungers thus repeat reciprocation with rotation of the driving shaft. According to the present invention, an apparatus of large scale having relatively few sliding faces in its parts may be designed. Further, according to the present apparatus, besides oil, the operating fluids of low lubricity, e.g., water and the like, may also be used. |
