Gas-supplying apparatus, gas-supplying mechanism and gas-supplying process in fuel cell
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsTomoki Kobayashi, Takuma Kanazawa, Yoshio Nuiya
Life of this patent
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Abstract
A gas-supplying apparatus in a fuel cell comprises a compressor which sucks a supply gas to be supplied to a fuel cell from downstream of said fuel cell, and which compresses an exhaust gas, generated from said supply gas by power generation in the fuel cell, exhausted from the fuel cell, and a heat exchanger which performs heat exchange between said supply gas and said exhaust gas. The apparatus has a simple configuration and improved heat efficiency.
Claims13
A gas supplying apparatus in a fuel cell, wherein the fuel cell is supplied a supply gas and discharges the supply gas as exhaust gas, the gas supplying apparatus comprising:
- a compressor which sucks the exhaust gas from downstream of said fuel cell, and which compresses the exhaust gas, which is generated from said supply gas by power generation in the fuel cell, and
- a heat exchanger, into which the supply gas having a pressure lower than atmospheric pressure and the exhaust gas having a pressure higher than said supply gas are introduced to perform heat exchange between said supply gas and said exhaust gas, wherein said compressor increases the temperature of the exhaust gas by compressing the exhaust gas before the exhaust gas is introduced to said heat exchanger.
A process for controlling a temperature of a supply gas to be supplied to a fuel cell, comprising:
- introducing said supply gas having a pressure lower than atmospheric pressure into a heat exchanger and, at the same time, introducing an exhaust gas discharged from the fuel cell and having a pressure higher than said supply gas to perform heat exchange between the supply gas and the exhaust gas, wherein the temperature of said exhaust gas is increased by compressing the exhaust gas before the exhaust gas is introduced into said heat exchanger.
A process for controlling a temperature of a supply gas to be supplied to a fuel cell, comprising:
- compressing an exhaust gas discharged from the fuel cell to increase the temperature of the exhaust gas;
- introducing said supply gas having a pressure lower than atmospheric pressure into a heat exchanger, and
- introducing the compressed exhaust gas having a pressure higher than said supply gas into said heat exchanger to perform heat exchange between the supply gas and the compressed exhaust gas.
A process for controlling a temperature of a supply gas to be supplied to a fuel cell, comprising:
- introducing said supply gas having a pressure lower than atmospheric pressure into a heat exchanger, and
- introducing the exhaust gas having a pressure higher than said supply gas into said heat exchanger to perform heat exchange between the supply gas and the exhaust gas, wherein the temperature of the exhaust gas is increased prior to introducing the exhaust gas into the heat exchanger.
A gas supplying apparatus in a fuel cell, wherein the fuel cell receives a supply gas and discharges an exhaust gas, the gas supplying apparatus comprising:
- a heat exchanger for receiving the supply gas having a pressure lower than atmospheric pressure and for receiving the exhaust gas having a pressure higher than the supply gas, wherein the exhaust gas exchanges heat with the supply gas in said heat exchanger,
- a compressor positioned between the fuel cell and the heat exchanger for compressing the exhaust gas to control the temperature of the exhaust gas before the exhaust gas is introduced to said heat exchanger.
Dependencies are inferred from the claim text.