| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress dragging by abrasion powder accumulating between press-contact plates via a frictional facing and to prevent fastening/releasing failure in a multi-plate dry clutch. <P>SOLUTION: A hybrid drive force transmission includes a multi-plate dry clutch 7 arranged in a closed space, wherein the multi-plate dry clutch 7 includes inner plates 71, outer plates 72, frictional facings 73, and a housing cover 60. The inner plates 71 have an axial inner peripheral flow-in passage 74, 74 in a spline fitting region with a clutch hub 3. The outer plates 72 have an axial outer circumferential flow-out passage 77, 77 in a spline fitting region with a clutch drum 6. The frictional facings 73 have radial clutch grooves 76. The housing cover 60 has an outside air inlet hole 66 and an outside air outlet hole 67. The clutch grooves 76 are set in such a manner that a groove cross-sectional total area of grooves in the frictional facing 73 in an external (engine) side is larger than a groove cross-sectional total area of grooves in the frictional facing 73 in an internal (transmission) side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
