Patent ID: 7802964
Filing Date: 2010-09-28
Classification: F01D,F04D,F16C,Y10T

Abstract:
1. A controllable variable length link device comprising: a first half-link including a first end connected to a driving system and a second end; a second half-link including a first end connected to a driven system and a second end; a rotary displacement member including a rotator shaft and a rotary head cooperating with said second ends of said half-links to bring about opposite movement of said half-links; a bearing unit in which said rotator shaft is mounted; first and second guiding units which guide said first and second half-links, respectively, in translation in at least two parallel directions, said guiding units being mechanically connected to said bearing unit; and a driving unit which drives said shaft in rotation in both directions in accordance with a predetermined relationship, by which the length of the link may be varied based on the rotation of said shaft, when said link device is operating.