An electromagnetic actuating mechanism comprising an armature unit (10) which can be moved by a certain armature excursion along an axial direction of travel as a result of stationary coil means being energized, plunger means (16) which are associated with the armature unit, are designed such that the end thereof cooperates with an external actuating partner, and can be moved by a certain plunger excursion along the direction of travel from a starting position into an engagement position, and spring means (22) which bias the plunger means in the direction of travel.

Provided is a magnetic clamp device that is capable of more finely measuring an induced voltage generated in a coil and selecting countermeasures against reductions in magnetization force. Multiple magnet blocks 11, 21 each comprising an invertible magnet 18, the polarity of which can be inverted, and non-invertible magnet 15, are positioned on a surface of a plate PL composed of magnetic body magnetically clamping a mold M1, M2 when in a magnetized state. The magnetic flux traversing the invertible magnet 18; and a control device 33 that determines whether or not there has been a polarity inversion in the induced voltage detected from the coil 31, and if there has been a polarity inversion, warns that the adhesion of the molds M1, M2 has decreased.

Some examples herein provide a method for generating a magnetic field. The method may include accumulating positive charges at a first electrode; accumulating negative charges at a second electrode; and rotating the first electrode relative to the second electrode so as to induce a relative angular velocity between the positive charges and the negative charges and thus generate a magnetic field. In some examples, the magnetic field may be used for propulsion.

An actuator for a magnet valve, the actuator including a housing including a terminal wall including an opening; and an armature arranged in the housing and movable in an axial linear manner between a first end position and a second end position, wherein the opening is closed by a terminal cover, wherein the terminal cover includes a contour that protrudes at least in a direction towards the armature, and wherein the contour includes a first section that defines the second end position of the armature.

Devices configured to direct heat flow are disclosed, as well as methods of forming thereof. A device may include a self-assembling heat flow object. The self-assembling heat flow object may include a material having one or more self-assembling properties that cause the material to react to an environmental stimulus and one or more thermal pathways. An application of the environmental stimulus causes the self-assembling heat flow object to deploy and arrange the one or more thermal pathways for directing thermal energy to one or more locations.

Devices configured to direct heat flow are disclosed, as well as methods of forming thereof. A device may include a self-assembling heat flow object. The self-assembling heat flow object may include a material having one or more self-assembling properties that cause the material to react to an environmental stimulus and one or more thermal pathways. An application of the environmental stimulus causes the self-assembling heat flow object to deploy and arrange the one or more thermal pathways for directing thermal energy to one or more locations.

Apparatus and method to facilitate heat transfer fluid flow are disclosed herein. A flexible tube having first and second ends facilitates a heat transfer fluid to flow from the first end to the second end. Ferromagnetic material encircles at least an outside portion of a length of the flexible tube, and a plurality of coil windings encircles the ferromagnetic material. The flexible tube is to be compressed to reduce an amount of flow of the heat transfer fluid from the first end to the second end by expansion of the ferromagnetic material around the flexible tube, in response to an application of a current to the plurality of coil windings.

De-magnetization protection is provided for electro-permanent magnets during information handling system manufacture and use by monitoring thermal conditions at the information handling systems to detect a thermal state associated with de-magnetization and commanding the electro-permanent magnets to an off state so that both magnets in the electro-permanent magnet have opposing polarities. The opposing polarities tend to stabilize magnet polarity to prevent de-magnetization during increased temperatures. Normal operations are then re-enabled once temperatures decrease.

An electromagnetic actuator having a permanent magnet coupled to an armature of the electromagnetic actuator is provided. The electromagnetic actuator includes a housing, and an armature assembly arranged within the housing. The armature assembly includes an armature and a permanent magnet coupled to the armature. The armature is movable between a first position and a second position, and the permanent magnet defines an axial magnet thickness and the armature defines an axial armature thickness. A ratio of the axial armature thickness to the axial magnet thickness is greater than approximately three.

The present disclosure provides a stellarator magnet based on cubic permanent magnet blocks and an arrangement optimization method thereof. For the characteristic that a three-dimensional magnet coil of a stellarator is complex in structure, the present disclosure provides the stellarator magnet based on the cubic permanent magnet blocks with uniform magnetization, same magnetization and same size; the magnetization directions of the cubic permanent magnet blocks are defined in a limited number of fixed alternative directions; the magnetic field configuration of the stellarator is generated by dipole magnetic fields provided by the permanent magnet blocks and planar coils, so that the device complexity of the stellarator is reduced, and the difficulty and cost of the machining and installation of the magnet are reduced. The shape of the permanent magnet blocks can be replaced by other regular shapes, and the permanent magnet is still formed by the permanent magnet blocks with same shape, same size, uniform magnetization and same magnetization. For the magnet, the present disclosure provides a magnet arrangement optimization method of ‘local compensation’ and related optimization strategies of ‘threshold truncation,’ ‘global fine tuning,’ etc., for meeting different optimization requirements on accuracy of the magnetic fields, usage qualities of magnets, etc., and a magnetic field meeting designing requirements can be obtained.