Catalyst combustion device and fuel vaporizing device

A fuel vaporizing apparatus, characterized in that said apparatus comprises:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• a vaporizing unit having a vaporizing surface for heating fuel to be fed from said fuel feed course to vaporize said liquid fuel;
• a first mixing space for mixing air fed from said air feed course with fuel vaporized in said vaporizing unit;
• and
• a second mixing space provided on the downstream side of said first mixing space, and
• a tip end of said air feed course penetrates said vaporizing surface to thereby cause a part of air jetted from said tip end to flow out of said first mixing space without being affected by heating in said vaporizing unit, while the remaining air is mixed with said fuel vaporized within said first mixing space, into mixture, to flow out of said first mixing space, and
• in said second mixing space in the outside of said first mixing space, said air flowed out is mixed with said mixture.

A catalyst combustion apparatus using a fuel vaporizing apparatus, the fuel vaporizing apparatus comprising:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• and
• a vaporizing unit having a vaporizing surface for heating fuel to be fed from said fuel feed course to vaporize said liquid fuel, and wherein
• said vaporizing unit is formed into a box-shaped case;
• within said case, a tip end of said fuel feed course and a tip end of said air feed course are arranged, fuel is jetted through the tip end of said fuel feed course toward the vaporizing surface located in a base portion of said case;
• and within said case, vaporized fuel and air jetted from the tip end of said air feed course are mixed to flow out of an opening located on a side of said case;
• wherein the catalyst combustion apparatus further comprises a catalyst fuel unit provided on the downstream side of said vaporizing unit, having a multiplicity of conductive holes, and wherein a full or partial surface of a base portion having a vaporizing surface of said case on a catalyst combustion unit side is formed with higher emissivity film than other portions.

A catalyst combustion apparatus comprising:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• mixing unit for mixing fuel to be fed from said fuel feed course with air to be fed from said air feed course;
• a vaporizing unit for heating mixture obtained by mixing in said mixing unit to vaporize said liquid fuel;
• a catalyst heating unit disposed on a downstream side of said vaporizing unit in contact with or in close proximity to said vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component;
• and
• solely a single catalyst combustion unit, provided on a downstream side of said catalyst heating unit, having a multiplicity of conductive holes, and wherein
• said vaporizing unit is capable of utilizing heat from said catalyst heating unit;
• wherein:
• said catalyst heating unit is integrally coupled to and extends in a direction away from directly from said vaporizing unit for conduction of heat, is box-shaped, and has a space portion for communicating to an internal space of said vaporizing unit;
• on a base portion of said box-shaped catalyst heating unit, there are formed a plurality of holes, and existence of said base portion restrains a flow of said mixture toward said catalyst combustion unit;
• and
• said mixture is further mixed in said space portion of said box-shaped catalyst heating unit.

A catalyst combustion apparatus comprising:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• a vaporizing unit for heating fuel to be fed from said fuel feed course to vaporize;
• a mixing unit for mixing vaporized fuel fed from said vaporizing unit with air fed from said air feed course;
• a catalyst heating unit disposed on a downstream side of said mixing unit in contact with or in close proximity to said vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component;
• and
• solely a single catalyst combustion unit, provided on a downstream side of said catalyst heating unit, having a multiplicity of conductive holes,
• wherein:
• said vaporizing unit is capable of utilizing heat from said catalyst heating unit;
• the vaporizing unit is coupled to said catalyst heating unit for conduction of heat;
• said fuel feed is disposed within said vaporizing unit;
• said catalyst heating unit is box-shaped;
• and
• air fed from said air feed course diverts, and a part is fed to said mixing unit while the remaining part is fed to said catalyst combustion unit.

A catalyst combustion apparatus comprising:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• vaporizing unit for heating fuel to be fed from said fuel feed course to vaporize;
• a mixing unit for mixing vaporized fuel fed from said vaporizing unit with air fed from said air feed course;
• a catalyst heating unit disposed on a downstream side of said mixing unit in contact with or in close proximity to said vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component;
• and
• solely a single catalyst combustion unit, provided on a downstream side of said catalyst heating unit, having a multiplicity of conductive holes,
• wherein:
• said vaporizing unit is capable of utilizing heat from said catalyst heating unit;
• the vaporizing unit is coupled to said catalyst heating unit for conduction of heat;
• said fuel feed is disposed within said vaporizing unit;
• said catalyst heating unit is box-shaped;
• an air jet nozzle of said air feed course penetrates said vaporizing unit and is disposed in the vicinity of said catalyst heating unit;
• and
• that a fuel jet port of said fuel feed course is disposed in said vaporizing unit.

A catalyst combustion apparatus comprising:

• a fuel feed course for feeding liquid fuel;
• an air feed course for feeding air;
• a vaporizing unit for heating fuel to be fed from said fuel feed course to vaporize;
• a mixing unit for mixing vaporized fuel fed from said vaporizing unit with air fed from said air feed course;
• a catalyst heating unit disposed on a downstream side of said mixing unit in contact with or in close proximity to said vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component;
• and
• solely a single catalyst combustion unit, provided on a downstream side of said catalyst heating unit, having a multiplicity of conductive holes, wherein:
• said vaporizing unit is capable of utilizing heat from said catalyst heating unit;
• the vaporizing unit is coupled to said catalyst heating unit for conduction of heat,
• said fuel feed is disposed within said vaporizing unit;
• said catalyst heating unit is box-shaped;
• a vaporizing surface in said vaporizing unit is provided in a substantially vertical direction, and
• at a lower position than a tip end of said fuel feed course, there is provided, on the vaporizing surface, a liquid fuel diverting unit for diverting a flow of said liquid fuel jetted on the vaporizing surface and not yet vaporized.