Ultrasound testing device for gas pressure accumulators
AssigneeHydac Technology GmbH
InventorsNorbert Weber, Karl-Heinz Leichner
Life of this patent
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Abstract
An ultrasound testing device for gas pressure accumulators is used to test a predeterminable set position that can be taken by a movable separating element inside an accumulator filled with gas and connected to a fluid circuit. The separating element has at least one testing body associated with a visible mark which indicates the set position of the separating element. An ultrasound testing device on a testing body can be set on the accumulator in alignment with the visible mark. This testing device allows a plurality of accumulators of the same type to be tested for their predeterminable gas pressure set value, which corresponds to the gas pre-filling pressure, by a single hand apparatus. This kind of test is economical and achieves reliable results.
Claims8
A device for monitoring a predetermined set position of a separating element which is movably mounted in an accumulator, the accumulator being filled with gas and coupled to a fluid circuit, the device comprising:
- a plurality of testing bodies having mounting means for attaching said testing bodies on the separating element at a predetermined spacing from one another;
- visible marking means for mounting on an outside periphery of the accumulator and defining the predetermined set position of the separating element;
- and
- a manually positionable apparatus alignable with said markings, said manually positionable apparatus having ultrasound testing means for sensing each of said testing bodies through a testing head.
An accumulator, comprising:
- a housing having gas and fluid chambers, and an outer periphery;
- a separating element movably mounted in said housing and separating said gas and fluid chambers;
- a plurality of testing bodies mounted on said separating element at a predetermined spacing from one another;
- visible marking means on said outer periphery of said housing defining a predetermined set position of said separating element;
- and
- a manually positionable apparatus alignable with said markings, said manually positionable apparatus having ultrasound testing means for sensing each of said testing bodies through a testing head.
Dependencies are inferred from the claim text.