Timing chain drive system

Timing chain drive system

  • CN 101,122,320 B
  • Filed: 08/08/2007
  • Issued: 06/11/2014
  • Est. Priority Date: 08/09/2006
  • Status: Active Grant
First Claim
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1. a timing chain drive system, chain is erected to the driving sprocket wheel on the crankshaft of being located at internal-combustion engine and is located between the driven sprocket on the camshaft for driving air inlet-exhaust valve and the rotating force of above-mentioned crankshaft is passed to the timing chain drive system of above-mentioned camshaft, it is characterized in thatBetween the above-mentioned driven sprocket and above-mentioned driving sprocket wheel of the slack-side of above-mentioned chain, there is the governing mechanism of tension being formed by stretcher and movable conductor;

  • Between the above-mentioned driven sprocket and above-mentioned driving sprocket wheel of the advancing side of above-mentioned chain, there is swing mechanism, this swing mechanism is by the swing conductor of the direction forced oscillation to substantially vertical with the direct of travel of above-mentioned chain under the effect of the rotating force of above-mentioned crankshaft, when tension force maximum value in the tension change cycle of above-mentioned chain occurs, the astern speed of above-mentioned swing conductor is roughly maximum, in the time that tension force minimum value occurs, the forward velocity of above-mentioned swing conductor is roughly maximumAbove-mentioned swing mechanism has oval cam, and above-mentioned oval cam is coaxially fixed on above-mentioned crankshaft, extends the swing arranging transmit arm sliding contact on above-mentioned oval cam from the swing end of above-mentioned swing conductor.

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