Method for controlling a valve and an electromagnetic valve
First Claim
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1. A method for controlling a valve having a movable element for regulating a degree of opening of the valve, said movable element being journalled in a stationary journal arrangement, said method comprising the steps of:
- positioning said movable element in an opening position determining a degree of opening of the valve which sets a predetermined flow through said valve; and
causing said movable element to execute a friction reducing movement in said opening position, having a magnitude maintaining a flow through said valve substantially equal to said predetermined flow.
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Abstract
In a valve having a mechanically journalled movable element for regulating the valve'"'"'s degree of opening, and in a method for controlling such a valve, the movable element and journals are made to move in relation to each other in order to reduce friction in the journals of the movable element. The movable element is then in a position governed by the valve'"'"'s prevailing degree of opening.
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Citations
20 Claims
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1. A method for controlling a valve having a movable element for regulating a degree of opening of the valve, said movable element being journalled in a stationary journal arrangement, said method comprising the steps of:
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positioning said movable element in an opening position determining a degree of opening of the valve which sets a predetermined flow through said valve; and causing said movable element to execute a friction reducing movement in said opening position, having a magnitude maintaining a flow through said valve substantially equal to said predetermined flow. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electromagnetic valve comprising:
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a valve opening; a movable element disposed relative to said valve opening for determining a degree of opening of the valve opening which sets a predetermined flow through said valve; a stationary mechanical journal arrangement in which said movable element is journalled for movement relative to said valve opening; and control means for moving said movable element to an opening position which determines a degree of opening of said valve opening and for additionally causing said movable element to execute a friction reducing movement relative to said opening position while maintaining a flow through said valve substantially equal to said predetermined flow. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification