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US 2010/0248048 A1Published application
Fuel cell system
AssigneeToto Ltd.
InventorsToshiharu OOE, Kiyotaka NAKANO, Yoshiyuki KAWAMURA, Katsuhisa TSUCHIYA, Tsukasa SHIGEZUMI
Life of this patent
Estimating the term…
Abstract
The fuel cell system shifts, at least during start, in switching a pulse pump from a stop state to a pumping state to start pumping of the water, to normal control after performing start-operation-control for setting a water supply ability of the pulse pump higher for a predetermined time than the water supply ability during normal control.
Claims8
A fuel cell system comprising:
- a fuel cell module having a solid-oxide fuel cell and a reformer that performs steam reforming of a fuel gas supplied to the fuel cell;
- a water supplying unit having a water storage tank that stores water to be supplied to the reformer, a pump that pumps the water stored in the water storage tank to the reformer, and a flow rate detecting unit that detects a supply amount of the water to the reformer by the pump;
- a control unit that controls the water supplying unit and,
- at least during start up of the fuel cell system, in switching the pump from a stop state to a pumping state to start pumping or the water, the control unit shifts to normal control after performing start-operation-control for setting a water supply ability of the pump higher than the water supply ability during normal control for a predetermined time.
1 more element
A fuel cell system comprising:
- a fuel cell module having a solid-oxide fuel cell and a reformer that performs steam reforming of a fuel gas supplied to the fuel cell;
- water supplying means for supplying water to the reformer;
- and
- control means for controlling the water supplying means, wherein
- the water supplying means includes:
- a water storage tank that stores water to be supplied to the reformer;
- a pump that pumps the water stored in the water storage tank to the reformer;
- and
- flow rate detecting means for detecting a supply amount of the water to the reformer by the pump, and
- at least during start up of the fuel cell system, in switching the pump from a stop state to a pumping state to start pumping of the water, the control means shifts to normal control after performing start-operation-control for setting a water supply ability of the pump higher than the water supply ability during normal control for a predetermined time.
7 more elements
Dependencies are inferred from the claim text.