LIQUID FUEL INJECTION TYPE BURNER AND HEATER

PURPOSE:To raise thermal efficiency by forming a first combustion chamber inside of a second cylindrical body on the tip end of a first cylindrical body and forming a second combustion chamber between the second cylindrical body and a third cylindrical body on its outer circumference and piercing many through-holes in the second cylindrical body and providing a porous material body that is liquid-holding, fire-proof, and heat insulating on the inside face of the third cylindrical body. CONSTITUTION:Part of a liquid fuel that is sprayed into a first combustion chamber 60 from an injection nozzle 53 is ignited directly by an ignition plug 54 to become a combustion gas. This combustion gas, unburned fuel, and air for combustion that is supplied from a first cylindrical body 51 collide against a barrier wall 63 and bounce back to be stirred and mixed in the first combustion chamber 60, and then they are divided into small flows via the pierced holes 62 of a second cylindrical body 61 and flow into a second combustion chamber. Next, they collide against porous material bodies 73 and 74 and bounce back to be stirred and mixed. And then they are discharged out of the second combustion chamber 70. As a result all the fuel burns completely in the second combustion chamber and it is discharged as a high temperature gas.