| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of a variable valve train by eliminating double structure, a small part and a part of a shaft. SOLUTION: A rotational phase difference variable mechanism 41 of the variable valve train 9 comprises a slider gear 44 meshing a helical spline respectively mutually different in an angle between an input part 21 and an output part 31, the shaft 20x sliding in the lengthwise direction F and R separately from the rockably supported input part 21 and output part 31, and a connecting mechanism 52 connecting the slider gear 44 to the shaft 20x, restrictively in its lengthwise direction F and R and slidably in the peripheral direction O and C, by slidingly contacting a pair of connecting members 53b and 53a projected at an interval in its lengthwise direction F and R on the shaft 20x, from both sides in the lengthwise direction F and R of the shaft 20x, with the slider gear 44. COPYRIGHT: (C)2008,JPO&INPIT
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