| 摘要 |
1513786 Balancing MITSUBISHI JIDOSHA KOGYO KK 15 July 1975 [16 July 1974] 29713/75 Heading F1M A reciprocating engine includes at least one piston driving a crank-shaft 5 via a respective connecting rod, the engine incorporating at least two balancer shafts 6, 8 disposed on opposite sides of the crank-shaft. Each balancer shaft is mounted for rotation in the engine and is out of balance about its respective rotary axis. Also each balancer shaft is so formed and mounted that the mass which is unbalanced about the rotary axis of the shaft has a centre of mass which is disposed between the axial limits of a bearing 18, 19 in which the shaft is rotatably supported and the centre of mass is so disposed in relation to the axial limits of the bearing that the centrifugal forces arising in rotation of the shaft do not tend to tilt the shaft in the bearing. A sprocket (not shown) is secured to the crank-shaft and a chain 50' extends around sprockets (not shown) whereby the balancer shafts are driven by the crank-shaft, the drive of the balancer shaft 8 including a gear 8 "meshing with a gear 8'. |
