Arrangement and method for continuously supplying electric power to a field device in a technical system
First Claim
1. An arrangement for supplying electrical power to a field device in a process installation which is equipped with a wire-free communication interface, without the use of wires, with at least one fuel cell having a membrane/electrode block and a fuel tank as well as an electrical energy store being integrated in a housing in the field device, comprising:
- a fuel cell equipped with an oxygen reservoir which provides oxygen that is required for production of electrical energy by oxidation of the fuel in the membrane/electrode block, a water reservoir unit which holds water which is created during the production of electrical power in the membrane/electrode block by oxidation of the fuel with the oxygen, and wherein the fuel cell together with the membrane/electrode block, a fuel tank, the oxygen reservoir and the water reservoir unit form a closed system.
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Accused Products
Abstract
An arrangement is described for supplying electrical power to a field device in a process installation which is equipped with a wire-free communication interface without the use of wires. At least one fuel cell having a membrane/electrode block and a fuel tank as well as an electrical energy store are integrated in a housing in the field device, with the fuel cell being equipped with an oxygen reservoir which provides the oxygen that is required for production of electrical energy by oxidation of the fuel in the membrane/electrode block. In addition, the fuel cell is equipped with a water reservoir unit which holds the water which is created during the production of electrical power in the membrane/electrode block by oxidation of the fuel with the oxygen. The fuel cell together with the membrane/electrode block, the fuel tank, the oxygen reservoir and the water reservoir unit form a modular, closed system.
1 Citation
21 Claims
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1. An arrangement for supplying electrical power to a field device in a process installation which is equipped with a wire-free communication interface, without the use of wires, with at least one fuel cell having a membrane/electrode block and a fuel tank as well as an electrical energy store being integrated in a housing in the field device, comprising:
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a fuel cell equipped with an oxygen reservoir which provides oxygen that is required for production of electrical energy by oxidation of the fuel in the membrane/electrode block, a water reservoir unit which holds water which is created during the production of electrical power in the membrane/electrode block by oxidation of the fuel with the oxygen, and wherein the fuel cell together with the membrane/electrode block, a fuel tank, the oxygen reservoir and the water reservoir unit form a closed system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for supplying electrical power to a field device in a process installation which is equipped with a wire-free communication interface, without the use of wires, with at least one fuel cell having a membrane/electrode block and a fuel tank as well as an electrical energy store being integrated in the field device, comprising:
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providing oxygen which is required for production of electrical power by oxidation of the fuel in the membrane/electrode block from an oxygen reservoir with which the fuel cell is equipped, and holding in a water reservoir unit, of the fuel cell, water which is created during production of electrical power in the membrane/electrode block by oxidation of the fuel with the oxygen. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification