| 摘要 |
PURPOSE: An oil cooler of a CVVT(Continuously Variable Valve Timing) system is provided to reduce a temperature of supplied oil by contacting a cooling ring to the one side of a CVVT unit. CONSTITUTION: A circular cooling friction groove(141) is formed inside a CCVT case(107). A cooling ring(149) has a hollow coolant chamber(147) by forming in a circular ring shape to cool fluid through an advance and a retard oil holes(143,145) to be formed through a cam shaft(109). The cooling ring is contacted with the cooling friction groove. The cooling ring flows in/out coolant from a coolant pump by forming an inlet pipe(157) and an outlet pipe(159) to be connected with coolant pipes(153,155). Thereby, a temperature of supplied oil is reduced.
|
