ETO MAGNETIC GmbH

Stockach, Germany

ETO MAGNETIC GmbH

Stockach, Germany
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Patent
ETO MAGNETIC GmbH | Date: 2017-05-03

The invention relates to a device for adjusting a camshaft of an internal combustion engine, comprising a lifting profile assembly (10) which is provided in a rotationally fixed manner on or at an axially moveably mounted camshaft, and which forms a control groove (12) having a groove depth that varies along a direction of rotation, and comprising actuating means (Fig. 4) which are designed to cause an axial movement by controlled engaging in the control groove, and which have an electromagnetically driveable tappet unit (P1, P2), wherein the tappet unit cooperates with the control groove in such a way that, when rotating, same can exert a reset- or driver effect on the tappet unit in a predetermined groove section, wherein the tappet unit has at least two neighbouring and preferably axially parallel individual tappets (P1. P2), said tappets being independently driveable, wherein the control groove, designed to engage using a first of the individual tappets (P2), forms a radially peripheral wall at least along a peripheral groove side in such a way that a neighbouring second of the individual tappets (P1) is positioned outside the control groove during rotation, and wherein, outside the control groove (12), the lifting profile assembly is provided with a radially height-variable and/or ramp section (20) for cooperating with the second individual tappet, in such a way that a resetting and/or driving of the second individual tappet (P1) is caused when the first individual tappet (P2) is reset or driven against a tappet drive direction using the control groove.


Patent
ETO MAGNETIC GmbH | Date: 2015-07-06

A gripper device (16; 30; 56; 90; 120) which is designed so as to be movable along a movement path, and which serves for grasping and holding a workpiece (70) and for moving the workpiece along the movement path, with at least one first contact section (18; 38; 66) which, to produce an operative pairing with the workpiece that effects the gripping or holding action, can be driven relative to a second contact section (20; 40; 68), which first contact section is assigned actuator means (22; 44; 54; 128), which are designed to exert a drive force in reaction to the application of a magnetic field, and which are composed of a magnetic shape-memory alloy material, wherein the actuator means for magnetic interaction are formed, for the application of a magnetic field, with magnetic field generating means that are static at one position of the movement path (52; 80; 86; 88), and/or with magnetic field generating means that are provided so as to be movable independently of the gripper device.


Patent
ETO MAGNETIC GmbH | Date: 2017-01-18

The invention relates to an electromagnetically actuatable valve device, comprising a valve housing (20), which has a first (P) and a second (T) fluid connection, which are each designed to be opened and closed in a controlled manner by means of the movement of an associated first (28) or second (30) closing unit, and which has at least one further fluid connection (A), which is provided on the valve housing and which forms a fluid channel to the first or second fluid connection that can be interrupted by means of the first and/or second closing unit, wherein the first and the second closing unit are provided on or in an armature unit (22), which is movably guided in the valve housing along a longitudinal axis of movement and can be driven as a response to a supply of current to a coil unit (24) provided on the coil housing (20) in a stationary manner and can be moved between first and second end-face stop positions on the valve housing which lie opposite each other, wherein the armature unit is preloaded into the first stop position by means of first spring elements (38, 40) that act on the valve housing, in which first stop position the first closing unit (28) closes the first fluid connection (P), the armature unit is designed to be electromagnetically brought into an armature intermediate position provided between the first and the second stop position along the longitudinal axis of movement in a controlled manner, in which armature intermediate position the first closing unit closes the first fluid connection and the second closing unit closes the second fluid connection, and at least one of the first and second closing units is guided on or in the armature unit in an axially movable manner and is preloaded in the direction of the associated fluid connection by means of second spring elements (32, 34).


Patent
ETO MAGNETIC GmbH | Date: 2017-07-26

The invention relates to a bistable electromagnetic actuator device comprising a permanent magnet means (12; 12a, 12b) and an armature unit (18) having a plunger unit (10) which extends in a direction of movement and can be moved by stationary electromagnetic drive means (22) to at least one of two end and/or stop positions that are stable in a de-energized state. A housing (20) which at least partially surrounds the armature unit is provided with stationary magnetic field detection means (34; 34a, 34b) for contactless interaction with the permanent magnet means in at least one of the end or stop positions which is provided for the purpose of detecting the armature position. The end face of the plunger unit has an engagement portion (28) for interacting with an actuating partner in a contacting and formfitting manner, such that when the electromagnetic drive means are deactivated, more particularly de-energized, formfitting contact and/or actuation by the actuating partner causes the armature unit to move to one of the end or stop positions in which the armature unit remains stable in a de-energized state, and the magnetic field detection means are arranged and connected so as to generate and output a detector signal which corresponds to said end or stop position, more particularly after the contact or actuation.


Patent
ETO MAGNETIC GmbH | Date: 2017-01-18

The invention relates to an electromagnetic valve, in particular for safety-related pneumatic systems in motor vehicles. The valve comprises an armature (9), which, by means of current supplied to an electrical winding (6), can be displaced axially relative to a core (13) and relative to a valve seat (2), inside an inner channel of a coil support carrying the winding (6) on a winding section. According to the invention, the interior of the armature (9) is provided with a guide channel, into which a guide pin (3) formed integrally with the coil carrier (1) projects, in order to guide the armature (9) during its axial displacement.


The invention relates to an actuator apparatus having an expansion unit (10) which has a magnetic shape-memory alloy material (MSM), is designed to interact with an actuating partner and, in response to an induced magnetic flux, executes an expansion movement along an expansion direction and can be oriented along a longitudinal axis, which is determined by the expansion direction, on the actuating partner and has, at one end, an operative section (14, 18) for exerting an actuating force on the actuating partner, wherein pretensioning and/or spring means (22, 24) are associated with the other end of the expansion unit, in particular opposite the operative section, such that, in an operating state in which magnetic flux is not applied, the expansion unit can exert a force, in particular a shear, actuating and/or holding force, on the actuating partner and/or the expansion unit can have a damping effect.


A solenoid valve (1), in particular for closing a bypass in a coolant circuit of an internal combustion engine, with an energizable winding (3) and an armature (2) that is adjustable in the direction of a core by energizing the winding, which armature (2) force-loads a valve plunger (8) with energized winding (3) in the direction of a closing position, in particular against the spring force of a resetting spring (18), wherein when the armature (2) is energized a pin (12) which is adjustable together with the armature for adjusting the valve plunger (8) in the direction of the closing position is provided, by way of which the valve plunger (8) by way of adjusting the armature (2) upon energization can be force-loaded in the direction of the closing position, and which is spring force-loaded by a pressure limiting spring (13) in the direction of the closing position of the valve plunger (8) and which by way of the valve plunger (8) upon an axial valve plunger movement of the valve plunger (8) out of its closing position is adjustable for opening the solenoid valve (1) despite the armature (2) that is adjustable in the direction of the core (6) against the spring force of the pressure limiting spring (13).


Patent
ETO MAGNETIC GmbH | Date: 2017-06-07

The invention relates to a gripper device (16; 30; 56; 90; 120) which is designed to be movable along a movement path and which serves for grasping and holding a workpiece (70) and for moving the workpiece along the movement path, having at least one first contact section (18; 38; 66) which, to produce an operative pairing that effects the gripping or holding action, can be driven with the workpiece relative to a second contact section (20; 40; 68), which first contact section is assigned actuator means (22; 44; 54; 28) which are designed to exert a drive force in reaction to the application of a magnetic field and which are composed of a magnetic shape-memory alloy material, wherein the actuator means for magnetic interaction are formed, for the application of a magnetic field, with magnetic field generating means which are static at one position of the movement path (52; 80; 86; 88) and/or magnetic field generating means which are provided so as to be movable independently of the gripper device.


Patent
ETO MAGNETIC GmbH | Date: 2014-11-12

A camshaft adjustment device comprising an electromagnetic actuator (3) having an armature that can be adjusted axially along an adjustment axis (5) for actuating a hydraulic valve for camshaft adjustment, and fastening means for fastening the actuator (3) on an engine element (3), wherein the fastening means comprise spring means (12), which tension the actuator (3) against the engine element (2) in a securing position (13), wherein the fastening means have positive-fitting means (8) as an anti-twist device for preventing a twisting movement of the actuator (3) in an installation position (7) relatively to the engine element (2), which are constructed and arranged in such a manner that the actuator (3) can be moved to the engine element (2) by means of a pure translational installation movement and wherein the spring means (12) in the securing position (13) bar a de-installation path for a purely translational de-installation movement of the actuator (3) opposite to the installation movement in such a manner that the same cannot be de-installed oppositely to the purely translational installation direction.


Patent
ETO MAGNETIC GmbH | Date: 2015-01-22

An electromagnetic valve for safety-related pneumatic systems in motor vehicles, with an armature (9), which, by means of current supplied to an electrical winding (6), can be displaced axially relative to a core (13) and relative to a first valve seat (2), inside an inner channel of a coil carrier carrying the winding (6) on a winding section, wherein, in the armature (9) is arranged a guide channel, into which projects axially a guide pin (3) formed integrally with the coil carrier (1), so as to guide the armature (9) in the course of its axial displacement.

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