| 摘要 |
<p>A variable valve gear (20) comprising a camshaft (10) rotatably installed in an internal combustion engine (200), a cam (15) formed on the camshaft (10), a rocking cam driven by the cam, an intake valve (5) or an exhaust valve (6) driven by the rocking cam, a control shaft (11) rotatably installed in the internal combustion engine (200) parallel with the camshaft and having, therein, an oil passage (11a) for flowing an oil, a control arm (72) having one end held on the control shaft (11) and the other end projected from the control shaft (11), an actuator (43) rotating the control shaft (11) to displace the control arm (72), a transmission arm (35) rotatably coupled to the other end of the control arm (72) and transmitting the displacement of the control arm (72) to the rocking cam (45), and a lubricating oil passage (78) formed in the control arm (72) and feeding an oil in the oil passage of the control shaft (11) to the portion (79) of the control arm where the control arm (72) is connected to the transmission arm (35).</p> |
