| 摘要 |
1,188,992. Rotary-piston machines. M. J.-B. CALUWE. May 5, 1967 [May 6, 1966; April 4, 1967], No.21130/67. Heading F1F. A rotary-piston machine has at least one diametral vane 7 slidable radially in a cylindrical piston 4 of circular profile, each end of the or each vane having sealing rods and strips 8, 11 therein engaging with the surface 30 of a stator 2, which surface has a profile comprising arcs of circles subtending angles γ at the axis of rotation and arcs of differing Archimedean spirals subtending angles α and #, respectively. The rate of change of radius of the surface 30 with respect to the angular displacement of the or each vane within each angle # is constant and steadily incremental, or decremental, within each angle α. Lubricating oil enters a clearance gap s through an orifice 18. Sealing between inlet and outlet passages 12, 13 is effected by sealing strips 15. The profile of the surface 30 may be modified such that the circular arcs are omitted i.e. each angle γ is zero. The machine may be a pump, motor, compressor or I. C, engine, and in the lastmentioned instance a mixture of fuel and air is compressed by a similar machine before it enters the or each inlet passage, the two pistons being coupled to each other. It is indicated that the number of working chambers 1 must be odd. |
