| 摘要 |
PROBLEM TO BE SOLVED: To certainly supply oil toward an abutting part of members relatively moved, in a variable valve train. SOLUTION: This variable valve train 10 changing the lift amount and operating angle of the valve element 12 of an internal combustion engine, is provided with a cam 26 rotated according to the rotation of a crank, a swinging arm 22 swung by receiving the action force of the cam 26, a rocker arm 16 swung by receiving the action force of the swinging arm 22 and driving the valve element 12 in an opening/closing direction, a variable mechanism changing the swinging range of the swinging arm 22 and changing the lift amount and operating angle of the valve element 12, and oil supply ports 60, 62, 64 ejecting oil toward abutting parts 44, 46, 48 where the relatively moving members are brought into rolling contact within a path with the action force of the cam 26 transmitted to the rocker arm 16. The oil supply ports 60, 62, 64 supply oil toward the abutting parts 44, 46, 48 in response to the positional change of the abutting parts 44, 46, 48 changed according to a change in the lift amount and operating angle of the valve element 12. COPYRIGHT: (C)2006,JPO&NCIPI
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