Patent ID: 7353787

Claim:
An electromagnetically driven valve that operates by a combination of electromagnetic force and elastic force, comprising: a valve element that has a valve shaft and that reciprocates in directions of extension of the valve shaft; a first oscillating member and a second oscillating member that extend from driving ends to pivoting ends, and that pivot about central axes extending at the pivoting ends, wherein the driving ends are operatively linked with the valve element; a stem provided between the first oscillating member and the second oscillating member that transfers reciprocating movements of the first oscillating member and the second oscillating member to the valve element; an electromagnet that oscillates the first oscillating member and the second oscillating member; a first measuring portion that measures at least one of an oscillation angle, an amount of lift and an oscillating speed of the first oscillating member; a second measuring portion that measures at least one of an oscillation angle, an amount of lift and an oscillating speed of the second oscillating member; and a control portion that computes energization control logics based on measurement values provided by the first measuring portion and the second measuring portion, and that averages the energization control logics to control energization of the electromagnet.