Patent ID: 6065957
Filing Date: 2000-05-23
Classification: F23C

Abstract:
A catalyst combustion apparatus comprising:a catalyst body for catalytically burning a mixture of fuel and air, said catalyst body being formed in a ring shape to have a through-hole at a center thereof;fuel supply means disposed at one end side of said catalyst body, for supplying fuel;air supply means disposed at said one end side of said catalyst body, for supplying air for combustion;a combustion cylinder for containing said catalyst body and forming a premixing chamber at the other end side of said catalyst body, said premixing chamber being for mixing fuel supplied from said fuel supply means and passing through said through-hole and air supplied from said air supply means and passing through said through-hole, said premixing chamber being also for changing a direction of said mixture of the fuel and the air such that said mixture flows through said catalyst body from the other end side toward the one end side;means for circulating a part of exhaust gas having passed through said catalyst body into the air supplied from said air supply means; anda starting catalyst body having an electric conductivity and disposed in a portion closer to said premixing chamber than said ring-shaped catalyst body, said starting catalyst body being electrified from the outside and generating heat as an electric resistor while being electrified.