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Oil pressure control valve and valve timing controller

  • US 9,328,636 B2
  • Filed: 12/08/2014
  • Issued: 05/03/2016
  • Est. Priority Date: 12/17/2013
  • Status: Active Grant
First Claim
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1. An oil pressure control valve to be attached to an attachment component having an oil passage, the oil pressure control valve comprising:

  • a sleeve having a cylindrical shape, a supply oil passage being defined in the sleeve and communicating to a feed port to which oil is supplied;

    a valve object that is able to be seated on or separated from a valve seat defined on an inner wall of the supply oil passage;

    a guide wall defined by an inner wall of the sleeve, the valve object being able to slidingly move in contact with the guide wall, the valve seat being located between the feed port and the guide wall;

    a forward flow port extending from the guide wall to the oil passage of the attachment component;

    a pressure chamber defined in the sleeve, the valve seat being located between the supply oil passage and the pressure chamber; and

    a backflow port that always allows the pressure chamber and the oil passage of the attachment component to communicate with each other, whereinthe forward flow port is located between the valve seat and the backflow port.

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