Patent ID: 6840762
Filing Date: 2005-01-11
Classification: F23D,Y02E

Abstract:
1. A microcombustion heater applicable to uses including heating of a semiconductor that require an accurate temperature control, having a premixed gas passage for a premixed gas of a fuel and the air, where the passage reaches a combustion chamber, and a combustion gas passage for a combustion gas drawn from the combustion chamber, wherein: the premixed gas passage and the combustion gas passage are arranged in a spiral form in a manner such that a heating wall is provided between the passages; the width of the premixed gas passage is a quenching distance or less, where the quenching distance is determined depending on the kind of the premixed gas; the microcombustion heater has a heat-resisting heating plate with an outer face, and a heat insulating plate with a generally planar inner face, the spiral passages being placed between the heat-resisting heating plate and the generally planar inner face of the heat insulating plate to be held from both sides of the upper and lower edges of the heating wall; the heat-resisting heating plate is located on a side of the spiral passages toward an object to be heated and the heat insulating plate is located on a side of the spiral passages opposite the heat-resisting heating plate; and the outer face of the heat-resisting heating a plate functions as a heating surface for emitting radiant heat.