Linear actuator and method for operating such a linear actuator
AssigneeSiemens Aktiengesellschaft
InventorsGeorg Bachmaier, Marco Cyriacks, Reinhard Freitag, Andreas Gödecke
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Abstract
The linear actuator comprises a double-chamber solenoid pump comprising at least one pump coil, a multi-way valve and at least one pump armature that can be moved by energizing the at least one pump coil and is provided with a switching armature by means of which the multi-way valve can be switched and which can be moved by energizing the at least one pump coil. In the method, both the switching armature and the pump armature are moved by energizing the pump coil.
Claims16
A linear actuator comprising:
- a solenoid pump having:
- a housing;
- at least two pump coils, each pump coil having a pump coil yoke;
- a multi-way valve;
- at least one pump armature positioned within the housing of the solenoid pump, wherein the at least one pump armature is movable by energizing one pump coil of the at least two pump coils;
- at least one flow-conducting device by which the pump coil yokes of the at least two pump coils are connected to one another in a flow-conducting manner;
- and
- a switching armature positioned within the housing of the solenoid pump between the at least two pump coils, wherein the switching armature is movable by energizing one pump coil of the at least two pump coils,
- wherein the multi-way valve is switchable by movement of the switching armature.
A method for operating a linear actuator, the method comprising:
- providing the linear actuator comprising a solenoid pump, the solenoid pump having:
- a housing;
- at least two pump coils, each pump coil having a pump coil yoke;
- a multi-way valve;
- at least one pump armature positioned within the housing of the solenoid pump, wherein the at least one pump armature is movable by energizing one pump coil of the at least two pump coils;
- at least one flow-conducting device by which the pump coil yokes of the at least two pump coils are connected to one another in a flow-conducting manner;
- and a switching armature positioned within the housing of the solenoid pump between the at least two pump coils;
- wherein the switching armature is movable by energizing one pump coil of the at least two pump coils, and wherein the multi-way valve is switchable by movement of the switching armature;
- setting the switching armature in a predetermined position in relation to a position of the multi-way valve, the setting comprising the energization of the at least two pump coils;
- and
- moving the pump armature while maintaining the predetermined position, the moving of the pump armature while maintaining the predetermined position comprising energizing the at least two pump coils.
A linear actuator comprising:
- a solenoid pump having:
- at least two pump coils;
- a multi-way valve;
- at least one pump armature integrated within the solenoid pump, wherein the at least one pump armature is movable by energizing one pump coil of the at least two pump coils;
- a switching armature integrated within the solenoid pump, by which the multi-way valve is switchable, wherein the switching armature is movable by energizing one pump coil of the at least two pump coils;
- and
- at least one flow-conducting device,
- wherein a magnetic flow is configured to be conducted through the at least one flow-conducting device, and
- wherein the magnetic flow is configured to operate the solenoid pump and, at a same time, switch the multi-way valve.
Dependencies are inferred from the claim text.