Test device
AssigneeHydac Fluidtechnik GmbH
InventorsJoachim Morsch, Wolfgang Hahmann, Gerd Schneider
Life of this patent
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Abstract
A fluidic pump test device includes a fluidic pump, a pressure influencing device, and an evaluation device. The fluidic pump is configured to be driven by a drive device. The fluidic pump is configured such that a rotational speed of the fluidic pump, which leads to a fluid volumetric flow on an output side of the fluidic pump, is known. The pressure influencing device is configured to: (i) conduct, at least temporarily, the fluid volumetric flow; and (ii) during operation of the fluidic pump, bring about a pressure drop. The evaluation device is configured to, based on a decrease of the pressure drop, determine a reduction in a functional capability of the fluidic pump.
Claims13
A fluidic pump test device comprising:
- a fluidic pump;
- a pressure influencing device;
- an evaluation device;
- and
- a valve device,
- wherein:
- the fluidic pump is configured to be driven by a drive device;
- the fluidic pump is configured such that a rotational speed of the fluidic pump, which leads to a fluid volumetric flow on an output side of the fluidic pump, is known;
- the pressure influencing device is configured to:
- (i) conduct, at least temporarily, the fluid volumetric flow;
- and (ii) during operation of the fluidic pump, bring about a pressure drop;
- the evaluation device is configured to, based on a decrease of the pressure drop, determine a reduction in a functional capability of the fluidic pump:
- the valve device includes a first control valve:
- the first control valve is a 3/2-way switching valve;
- the first control valve is configured to be actuated by a second control valve;
- and
- the second control valve is a 4/2-way switching valve.
Dependencies are inferred from the claim text.