| 摘要 |
<p>885,385. Air heating stoves; heating air by direct contact with combustion gases. HEAT & AIR SYSTEMS Ltd. Nov. 24, 1959 [Nov. 24, 1958], No. 37818/58. Class 64(1) Air in excess of that required for combustion is drawn through and heated in an annular space 9 surrounding a gas or oil fired combustion chamber 4 and is then directed into the combustion space from which the mixture of air and combustion gases is discharged through a duct 11. The air flow is preferably assisted by an induction fan (not shown), the quantity of air being controlled by a damper 8. Admixture of the air and combustion gases in the chamber 4 is aided by a deflector 12.</p> |
