Electromagnetic valve
First Claim
Patent Images
1. An electromagnetic valve comprising:
- a housing including an end tubular portion fitted to an attachment hole of a passage forming member, and a valve compartment positioned on an inner side of the end tubular portion, the passage forming member including an upstream passage through which a working fluid flows toward the electromagnetic valve, and a downstream passage through which the working fluid flows out of the electromagnetic valve;
an inlet passage positioned on the inner side of the end tubular portion or provided in the end tubular portion, the upstream passage and the valve compartment communicating with each other through the inlet passage;
a valve element provided in the valve compartment to open or close a valve port in between an open state in which the working fluid is allowed to flow from the valve compartment to the downstream passage and a closed state in which a flow of the working fluid is shut off;
a guide member including a support portion positioned in the valve compartment, the support portion supporting the valve element slidably in an axial direction;
a shaft pressing and moving the valve element in the axial direction to be in the open state; and
an electromagnetic solenoid portion generating a driving force for driving the shaft in the axial direction, whereinthe valve element having a tubular body includes a pressure release passage through which an inner compartment of the tubular body communicates with the valve port in the closed state of the valve element.
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Abstract
An electromagnetic valve includes a valve compartment inside an end tubular portion of a housing, a valve element provided in the valve compartment and movable to open or close a valve port, a guide member slidably supporting the valve element, a shaft contacting an end of the valve element to move the valve element, and a pressure release passage through which an inner compartment of the valve element communicates with the valve port in a closed state of the valve element.
19 Citations
5 Claims
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1. An electromagnetic valve comprising:
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a housing including an end tubular portion fitted to an attachment hole of a passage forming member, and a valve compartment positioned on an inner side of the end tubular portion, the passage forming member including an upstream passage through which a working fluid flows toward the electromagnetic valve, and a downstream passage through which the working fluid flows out of the electromagnetic valve; an inlet passage positioned on the inner side of the end tubular portion or provided in the end tubular portion, the upstream passage and the valve compartment communicating with each other through the inlet passage; a valve element provided in the valve compartment to open or close a valve port in between an open state in which the working fluid is allowed to flow from the valve compartment to the downstream passage and a closed state in which a flow of the working fluid is shut off; a guide member including a support portion positioned in the valve compartment, the support portion supporting the valve element slidably in an axial direction; a shaft pressing and moving the valve element in the axial direction to be in the open state; and an electromagnetic solenoid portion generating a driving force for driving the shaft in the axial direction, wherein the valve element having a tubular body includes a pressure release passage through which an inner compartment of the tubular body communicates with the valve port in the closed state of the valve element. - View Dependent Claims (2, 3, 4, 5)
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Specification