Abstract:
This specification describes a tray substrate for tile flooring that can be used in modular floating tile assemblies. The tray is made of plastic and has vertical tray edges recessed under the surface.
Abstract:
The present invention is to provide a measurement apparatus of measuring fuel capacity used in fuel cell system; the measurement apparatus comprises a sensor device, a resistor, an A/D converter and a controller. The sensor device comprises a first electrode and a second electrode and accommodated in fuel storage and/or fuel flow layer to detect the fuel capacity of the anode, the second electrode connects to a low level voltage, one terminal of the resistor connects to the first electrode, the other terminal electrically connects to a high level voltage. The input terminal of the A/D converter connects to the first electrode and the first terminal of the resistor to input a measuring analog voltage, and also converts into a measuring digital voltage, the controller connects to the A/D converter to input measuring digital voltage and converts into the liquid level of the anode fuel in the fuel storage and/or fuel flow layer.
Abstract:
This specification describes a tray substrate for tile flooring that can be used in narrow grout line modular floating tile assemblies. The tray is preferably made of plastic and has vertical tray edges around the top of the tray substrate with upward and downward tabs protruding from the sides of the tray substrate wherein some of the tabs are at least partially recessed under the surface of the tray.
Abstract:
A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle θ on a X-Y plane. The rotating means includes at least three floating objects connected with each other. Each floating object has a specific gravity less than a specific gravity of the liquid fuel ρ. The floating objects are balanced according to a torque equation, F(θ,ρ)=0, such that the rotating means is still under the level of the liquid fuel. While a concentration of the liquid fuel is changed and the angle θ of the rotating means is detected, the specific gravity of the liquid fuel ρ is obtained from the torque equation, F(θ,ρ)=0, and thereby computing the concentration of the liquid fuel.
Abstract:
A distributed control method for a fuel cell system is disclosed. An auxiliary power source first provides power for a main control unit and a power management unit during the fuel cell system is turned on. The main control unit repeatedly receives status data of fuel cells from the power management unit or actively inquires of the power management unit to determine whether the fuel cell system is abnormal, and real-time regulates the system to maintain it in an optimal condition. The power management unit detects the status of the fuel cell using sensors, produces a corresponding status datum, and then feeds back the status datum to the main control unit. While the fuel cell system is turned off, fuels residual in flow channels of a fuel cell and un-drained products produced by the electrochemical reaction of a fuel cell are cleaned up, and the last status of the fuel cell before shut off is stored. According to the method, the main control unit and the power management unit keep being actuated no matter whether the fuel cell system is turned on or off. Therefore, the status of fuel cells is monitored continuously, securing the performance thereof.
Abstract:
The present invention provides a concentration detection device, which is used to detect the concentration of liquid fuel within a container. The device comprises: a float, which is floating on the surface of liquid fuel, wherein the upper portion of the float has a figure of a first reference circle, and the float is just formed as a figure of a first intersection circle on the surface of liquid fuel; an image capture device with an imaging plane, wherein the imaging plane is configured upon the float; a sunshade, wherein the sunshade is configured between the imaging plane and the float, and the sunshade is configured with a hole, so the figures of the first reference circle and the first intersection circle could be respectively projected onto the imaging plane through the hole to form a second reference circle and a second intersection circle; a calculation device, which could calculate the concentration of the liquid fuel according to the first and second reference circles and the first and second intersection circles.
Abstract:
A method for controlling an output power of a fuel cell is disclosed. A DC converter and a fuel cell are provided, and a voltage input end of the DC converter is connected to a voltage output end of the fuel cell. The DC converter is used to convert an input voltage of the fuel cell into a regular output voltage. The DC converter is also used to retain a voltage of the voltage input end of the DC converter within a predetermined range, and thereby an output voltage of the fuel cell is maintained within the predetermined range. The predetermined range of the voltage is set according to a number of membrane electrode assemblies in the fuel cell and a voltage of the membrane electrode assemblies generated in an extent of optimal power.
Abstract:
This specification describes a tray substrate for tile flooring that can be used in modular floating tile assemblies. The tray is made of plastic and has vertical tray edges recessed under the surface.
Abstract:
This specification describes a tray substrate for tile flooring that can be used in narrow grout line modular floating tile assemblies. The tray is preferably made of plastic and has vertical tray edges around the top of the tray substrate with upward and downward tabs protruding from the sides of the tray substrate wherein some of the tabs are at least partially recessed under the surface of the tray.
Abstract:
A fuel cartridge for a fuel cell comprises a fuel tank, an outlet and an electric unit. The fuel tank includes a sealed space constructed by a hollow case. The outlet is disposed on the case of the fuel tank, and fuel inside the fuel tank flows out from the outlet. The electric unit includes an electrical I/O interface and at least an electric component, and the electrical I/O interface is connected to the electric components.