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Power transmission device

  • US 6,634,986 B2
  • Filed: 11/01/2001
  • Issued: 10/21/2003
  • Est. Priority Date: 11/24/2000
  • Status: Expired due to Fees
First Claim
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1. A power transmission device of a device having a first prime mover and a second prime mover as drive sources, wherein said power transmission device is arranged so that respective inertia torques of the first prime mover and the second prime mover cancel each other out in a process of shifting from a first speed stage to a second speed stage, wherein in said process of shifting from the first speed stage to the second speed stage, an increase or decrease in a rotation speed of said first prime mover is a reverse of an increase or decrease in a rotation speed of said second prime mover.

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