Device for the controlled operation of a switching element, in particular of a valve and actuator for use in automotive engineering
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsMichael Herges, Friedbert Roether, Martin Mederer, Janos Toth
Life of this patent
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Abstract
An actuator having a linearly movable push rod for use in automotive engineering, which may be for operating a switching element of a valve, in particular a container control valve of a commercial vehicle, having a housing having an expandable material working element and an electrical heater for heating the expandable material working element. Furthermore, a device is provided for the controlled operation of a switching element of a valve, in particular a container control valve of a commercial vehicle, which includes an actuator of the aforementioned kind.
Claims17
1-30. (canceled)
A device for controlling operation of a switching element of a container control valve of a motor vehicle, comprising:
- a switching element, wherein a pressure system, having a spring, moves automatically from a first operating position into a second operating position;
- an arresting device having a lock and a locking body, wherein the pressure system acts against a locking force of the arresting device, which in one operating position of the switching element is pressed by the spring into a recess, which is a groove, on an outer circumference of the switching element;
- wherein the pressure system has, in addition to the spring, an actuator including a linearly movable push rod, and wherein the spring is situated between one end of the switching element and the push rod of the actuator, and
- wherein the actuator includes a housing having an expandable material working element and an electrical heater for heating the expandable material working element.
A device for controlling operation of a switching element of a container control valve of a motor vehicle, comprising:
- a switching element, wherein a pressure system, having a spring, moves automatically from a first operating position into a second operating position;
- an arresting device having a lock and a locking body, wherein the pressure system acts against a locking force of the arresting device, which in one operating position of the switching element is pressed by the spring into a recess, which is a groove, on an outer circumference of the switching element;
- wherein the arresting device includes an actuator having a housing having an expandable material working element and an electrical heater for heating the expandable material working element,
- wherein the housing is pot-shaped and has an open side, from which the push rod as the locking body protrudes to the outside, and
- wherein the push rod is pressed into the groove by heating and the spring is unable to release the locking body from its arrest in the recess when the heater is activated.
Dependencies are inferred from the claim text.