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US 10,227,974 B2Granted
Pressure monitoring apparatus
AssigneeAndreas Hofer Hochdrucktechnik GmbH
InventorManfred Dehnen
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AssigneeAndreas Hofer Hochdrucktechnik GmbH
InventorManfred Dehnen
Estimating the term…
A pressure monitoring apparatus for a membrane compressor, with at least one pressure transducer for recording the pressure within a certain volume, with at least one nonreturn valve and with at least one shutoff valve, for blocking of the nonreturn valve, the shutoff valve and the nonreturn valve each being located in a flow path through which a medium can flow between the volume and the pressure transducer. A pressure monitoring unit delivers exact measured values and which can be economically implemented is achieved by there being at least two nonreturn valves which are located anti-parallel in respective flow paths, the first nonreturn valve blocking in the flow direction from the volume to the pressure transducer and the second nonreturn valve blocking in the flow direction from the pressure transducer to the volume, and by there being at least two shutoff valves for blocking a respective flow path.
A pressure monitoring apparatus, comprising:
A process for operating a compressor with a pressure monitoring apparatus having at least one pressure transducer for recording the pressure within a volume to be monitored, at least two nonreturn valves and at least two shutoff valves for blocking of the at least two nonreturn valves, each nonreturn valve and shutoff valve being located in a respective flow path through which a medium can flow between a volume to be monitored and the pressure transducer, the at least two nonreturn valves being in an anti-parallel configuration with respect to each other, the process, comprising
Dependencies are inferred from the claim text.