Valve timing regulator

Valve timing regulator

  • CN 102,472,125 A
  • Filed: 09/25/2009
  • Published: 05/23/2012
  • Est. Priority Date: 09/25/2009
  • Status: Active Application
First Claim
Patent Images

1. port timing controlling device comprises:

  • Camshaft, the valve of this camshaft actuated internal-combustion engine opens and cuts out;

    Housing, this housing its inner peripheral surface has a plurality of crawler shoes, can free rotation mode being located on the said camshaft, and being driven and rotates by the output of said internal-combustion engine;

    AndRotor;

    This rotor has a plurality of blades at its outer circumferential face;

    Is connected can counterrotating mode to be accommodated in the said housing and with said camshaft, wherein, said a plurality of blades are formation delay angle hydraulic chamber and advance angle hydraulic chamber between the circumferential two side walls of itself and each said crawler shoe;

    It is characterized in thatSaid port timing controlling device comprises;

    Recess, the said crawler shoe of this recess and said advance angle hydraulic chamber and the circumferential wall of said blade are oppositely arranged;

    Retaining member, this retaining member insert from axial direction and are disposed at said recess;

    AndSecondary spring, this secondary spring are disposed between the retaining member of said retaining member and said blade-side of said crawler shoe side, with said rotor towards the advance angle direction application of force,The gap that the axial length of the axial length of the retaining member of being located at said blade-side and housing forms is set for more than or equal to following and value, should and value be following two value sums;

    considered the increasing amount that causes because of the axial length increasing amount after the inclination of this retaining member of the generation of the gap between said retaining member and the said recess and because of thermal expansion.

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