GB446655A - - Google Patents

Abstract

446,655. Rotary compressors. DUCHATEAU, C., 104, St. George's Square, Westminster. Aug. 1, 1934, No. 13179. [Class 110 (ii)] A compressor or pump having an outwardly-sliding abutment o is provided with a rotor a mounted loosely upon its driving spindle b so that centrifugal force on the rotor causes the surrounding sleeve c to roll on the casing bore d<1>. Keys e, e<1> secure the rotor to the spindle b, and are reduced at their ends e<2> so as to remain within the periphery of the spindle. Collars f may pass over the ends e<2>. A steel strip g may be provided between the key e<1> and the rotor. A helical spring p<1> presses against a collar p and causes the flanges c<1>, c<2> of the sleeve c to press against the casing d and the end plate h. Inlet port q and outlet ports q<1>, q<3>, are provided. A spring ball takes the axial thrust on the spindle b. Fig. 3 shows a modified arrangement in which the rotor a has an extension disc a<3> which supports a massive rim a<4> on the side of the greater mass of the rotor. A second disc i is keyed to the spindle b and drives the disc a<3> but permits radial movement of the latter. A bearing k is mounted upon the rotor a. The faces of plate hand flange p, or flanges c<1>, c<2>, may have annular cavities containing oil. Specification 281,143, [Class 110 (ii)], is referred to.