Moving-coil electromagnetic actuator, particularly for a control valve, with resilient element incorporated in the coil
First Claim
1. An electromagnetic actuator device, particularly for a valve for controlling the injection of fuel or fuel oil, comprising:
- a fixed permanent magnetic core, and an electrical control winding which is disposed in the magnetic field generated by the core and is movable relative to the core when an electrical current flows through the winding, in which the winding is intended to be coupled to a movable member actuable by the device, in a manner such as to bring about movement of the movable member between a rest position and at least one operative position, wherein the winding is arranged to act on the movable member by exerting a resilient force which can hold the member in the rest position or return the member to the rest position, in the absence of electrical current.
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Accused Products
Abstract
An electromagnetic actuator, particularly for a valve for controlling the injection of fuel or fuel oil is described and comprises:
a fixed permanent magnetic core, and
an electrical control winding which is disposed in the magnetic field generated by the core and is movable relative to the core when an electrical current flows through the winding,
in which the winding is intended to be connected to a movable member actuable by the device, in a manner such as to bring about movement of the movable member between a rest position and at least one operative position.
The winding is also arranged to act on the movable member by exerting a resilient force which can hold the member in the rest position or return the member to the rest position.
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Citations
13 Claims
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1. An electromagnetic actuator device, particularly for a valve for controlling the injection of fuel or fuel oil, comprising:
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a fixed permanent magnetic core, and an electrical control winding which is disposed in the magnetic field generated by the core and is movable relative to the core when an electrical current flows through the winding, in which the winding is intended to be coupled to a movable member actuable by the device, in a manner such as to bring about movement of the movable member between a rest position and at least one operative position, wherein the winding is arranged to act on the movable member by exerting a resilient force which can hold the member in the rest position or return the member to the rest position, in the absence of electrical current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification