Electromagnetically operating device for actuating a valve
AssigneeMETA Motoren- und Energietechnik GmbH
InventorPeter Kreuter
Life of this patent
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Abstract
An electromagnetically operating device for actuating a valve comprises a single solenoid cooperating with an armature which cooperates by a crank system with a shaft which, in turn, is cooperating by a crank system with a valve. The fully open position and the closed position of the valve is defined by the stretched position or the folded position of its crank system. The armature, in the fully open position and in the closed position of the valve, is substantially in the same end position so that the crank system during a valve stroke moves through a dead center position.
Claims12
An electromagnetically operating valve actuating device, said device comprising
- a valve (4);
- an actuating device (12, 14) engaging said valve (4), wherein said valve (4) and said actuating device (12, 14) together form an oscillating system, wherein said valve (4) in a rest position of said oscillating system is maintained between a fully open valve position and a closed valve position;
- a solenoid system comprising an armature (26) and a solenoid (28) acting on said armature (26);
- an armature connecting rod (24) connected to an armature crank (22) of a shaft (20);
- a valve connecting rod (16) connected to a valve crank (18) of the shaft (20);
- said armature (26) connected by said armature connecting rod (24), said armature crank (22) and said valve crank (18) of the shaft (20), and said valve connecting rod (16) to said valve (4);
- said solenoid (28), when excited, pulling said armature (26) into a first end position in which said valve is in said fully opened valve position or closed valve position, wherein said valve (4) from said first end position in which it is magnetically secured, after switching off said solenoid system, is moved by said actuating device (12, 14) into a second end position in which it is again secured by said excited solenoid (26);
- said valve crank (18) and said valve connecting rod (16) arranged such that a stretched position, in which said valve crank (16) extends said valve connecting rod (16), corresponds to said fully opened valve position of said valve (4) and that a folded position, in which said valve crank (18) shortens said valve connecting rod (16), corresponds to said closed position of said valve (4);
- said armature crank (22) and said armature connecting rod (24) arranged such that in said fully open valve position and said closed valve position, said armature crank (22) and said armature connecting rod (24) substantially form a right angle at one or the other side of the shaft (20);
- said armature crank (22) and said armature connecting rod (24), when said valve (4) moves from one of said first and second end positions (4) into the other of said first and second end positions, rotate through a dead center position so that said armature (26) is first moved away from said solenoid (28) and subsequently approaches said solenoid (28).
Dependencies are inferred from the claim text.