| 摘要 |
PCT No. PCT/AU96/00763 Sec. 371 Date Aug. 21, 1998 Sec. 102(e) Date Aug. 21, 1998 PCT Filed Nov. 28, 1996 PCT Pub. No. WO97/30813 PCT Pub. Date Aug. 28, 1997A phase control mechanism controls phase relationship between two shafts. The phase control mechanism may be used to control various mechanical devices such as the pitch of propellers of aircraft and boats, the pitch of power producing windmills, opening and closing lathe and drill chucks and controlling the eccentricity of some forms of continuously variable transmissions when the mechanisms are not only stationary but also in normal operational motion. The phase control mechanism includes first gears 3,4; 56,64 coupled to the output shafts which are to be phase controlled. A transfer gear 5; 16,17; 52,54 is provided for rotation or operation independent of the input and is coupled to the first gears 3,4; 56,64 to allow rotary motion to be transferred between the first gear members and a phase adjuster 10; 80 causes the first gears 3,4; 56,64 to advance or regress relative to one another to change the phase relationship between the outputs.
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