B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/74
B23P 19/00 (2006.01) B23P 21/00 (2006.01) F04C 29/00 (2006.01)
Patent
CA 1259170
ABSTRACT OF THE DISCLOSURE An assembly of rotating ring rotary compressors comprising a cylinder defining a compression chamber, a rotary shaft having an eccentric core for orbiting within the compression chamber, a rotating ring or roller fitted around the eccentric core of the shaft, and first and second supports mounted on opposite sides of the cylinder for supporting the rotary shaft in a rotational position within the cylinder itself. Fixing means such as, for example, screws are provided between the cylinder and the supports and allow the cylinder and the supports to be clamped in a final position of assembly of the compressor. The cylinder, the shaft, the roller and the supports are initially assembled together, the fixing means being kept in a slackened position. A preliminary centering operation is then carried out for bringing the axis of the shaft into a diametral plane of the cylinder constituting a predetermined reference plane. This operation is carried out by orientation of the shaft into two angular positions spaced from each other by 180°. The shaft is then oriented relative to the cylinder, the region of maximum eccentricity of the core being brought into the said reference plane. The support and the cylinder (this latter with the interposition of the roller) are then pressed onto the shaft by a thrust exerted in the said predetermined plane. They are thus brought into and held in a position of firm mutual contact: the cylinder on the roller, the roller on the eccentric core of the shaft and the support on the shaft at the sides of the eccentric core. The shaft and the support being kept in the position of firm contact, the cylinder is then given a relative movement of a predetermined magnitude in the opposite direction from the direction of the force previously exerted. The magnitude of this movement identifies the minimum aperture which is established, in use, between the outer surface of the roller and the wall of the compression chamber. (Figure 1)
521267
Sesona Giancarlo
Zgliczynski Marek
Aspera S.r.l.
Macrae & Co.
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