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(11) | EP 1 275 846 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Hinge for a swash plate |
| (57) There is provided a variable capacity compressor which is capable of maintaining
excellent control stability even when carbon dioxide is used as refrigerant. The variable
capacity compressor includes a thrust flange rigidly fitted on a shaft, for rotating
in unison with the shaft as the shaft rotates, and a swash plate fitted on the shaft
in a manner tiltable with respect to a plane perpendicular to the shaft and connected
to the thrust flange via a linkage, for rotating in unison with the thrust flange
as the thrust flange rotates. An inclination angle of the swash plate is changed according
to changes in pressure within a crankcase in which the swash plate is received, to
change the stroke length of each piston connected to the swash plate. The linkage
comprises a link pin fixed to one of the swash plate and the thrust flange, and a
guide slot formed through the other of the swash plate and the thrust flange and extending
in a form of an arc, for engagement with the link pin. An arc drawn by a center line
of the guide slot has a constant radius of curvature. |