| 摘要 |
PCT No. PCT/SE87/00227 Sec. 371 Date Jan. 12, 1988 Sec. 102(e) Date Jan. 12, 1988 PCT Filed May 5, 1987 PCT Pub. No. WO87/06999 PCT Pub. Date Nov. 19, 1987.The high efficiency solid fuel combustion apparatus comprises a thermally insulated wall structure defining an upwardly open primary combustion chamber, a solid fuel support disposed within the primary combustion chamber, and a secondary combustion air supply device mounted on top of the primary combustion chamber. The secondary air supply device comprises a frusto-conical shell open at both axial ends and oriented with its larger axial end opening to the primary combustion chamber. The shell has spaced inner and outer walls defining a frusto-conical air space there between, with the inner and outer walls being circumferentially sealed to one another and the inner wall being perforated for expelling secondary combustion air into the pyrolytic gasses generated by the burning fuel in the primary combustion chamber. The solid fuel support may include a horizontal lower grate and two inclined side grates fitted with primary air guide vanes to direct primary air onto the charcoal residue that accumulates on the horizontal grate. |
