Pressure regulator for a fuel cell, fuel supply system for a fuel cell using the regulator, electronic equipment having the fuel supply system, and fuel cartridge for a fuel cell

A pressure regulator for use in a fuel supply system for a fuel cell of electronic equipment, comprising:

• a pair of inlets for taking in fuel with primary pressure;
• a regulating valve for reducing fuel pressure from primary pressure to secondary pressure;
• a pressure regulating chamber into which said fuel passing through said regulating valve flows;
• a diaphragm arranged between said pressure regulating chamber and an atmospheric chamber so as to undergo displacement in response to said secondary pressure in said pressure regulating chamber;
• a linkage for linking said regulating valve to said diaphragm;
• and
• an outlet for discharging secondary-pressure fuel,
• wherein said pair of inlets are arranged in mutually opposite directions.

A pressure regulator for use in a fuel supply system for a fuel cell of electronic equipment, comprising:

• at least a pair of fuel inlets with which fuel supply cartridges can be connected individually so that user is allowed to use said cartridges in either case of a single and a pair;
• a pressure-reducing valve mechanism for reducing pressure of fuel injected by either or both of said cartridges from primary pressure to secondary pressure;
• and
• an outlet for sending out the secondary-pressure fuel to said fuel cell,
• wherein said pair of fuel inlets are arranged anti-symmetrically or substantially anti-symmetrically with reference to an axis of said pressure-reducing valve mechanism.

Electronic equipment comprising:

• a fuel cell as a power supply;
• a cartridge-loading section for loading fuel supply cartridges for use in said fuel cell;
• a fuel pressure regulator for regulating pressure of fuel supplied to said fuel cell,
• wherein said cartridge loading section is configured so that at least a pair of said cartridges can be loaded interposing said regulator between them along an outer edge of said electronic equipment;
• said regulator has at least one pair of fuel inlets directed opposite each other, and said fuel inlets are allowed to connect to said cartridges with removability.