Oil pressure control valve and valve timing controller
First Claim
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.
1 Assignment
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Accused Products
Abstract
A supply oil passage is defined in a sleeve and communicates to a feed port to which oil is supplied. A valve object 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 is defined by an inner wall of the sleeve, and the valve seat is located between the feed port and the guide wall. A forward flow port extends from the guide wall to an oil passage of an attachment component. A pressure chamber is defined in the sleeve, and the valve seat is located between the supply oil passage and the pressure chamber. A backflow port always allows the pressure chamber and the oil passage of the attachment component to communicate with each other. The forward flow port is located between the valve seat and the backflow port.
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Citations
10 Claims
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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:
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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, wherein the forward flow port is located between the valve seat and the backflow port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification