| 摘要 |
<p>PURPOSE: A two cylinder engine is provided to improve productivity and reduce parts development cost by commonly using a balance shaft module. CONSTITUTION: A two cylinder engine comprises a crank shaft(100), a balance shaft(315), first and the second balance weights(320,325), a crank gear(300) and a balance gear(305). The crank shaft is arranged in both sides where a crank pin(105) is connected to a connecting rod. The crank shaft includes a balance weight(110) in the opposite side corresponding to the crank pin. The balance weight is located away from the crank shaft and is rotated with the crank shaft. The balance weight absorbs a vibration and is formed in the balance shaft. The crank gear is mounted in one end of the crank shaft. The balance gear is mounted in the balance shaft.</p> |
