Abstract

The invention relates to a combustion chamber for burning an air-fuel mixture, a gas mixture or a gas-liquid mixture, including an outer casing; a flame tube located inside the outer casing and provided with an inner space, whereby the outer casing and the flame tube form an annular channel therebetween, the flame tube including flow apertures which penetrate through its casing and interconnect the annular channel and the inner space of the flame tube; a cover part arranged in inlet ends of the outer casing and the flame tube and provided with flow apertures opening up into the annular channel; a combustion air inlet part which is arranged in an outer surface of the cover part and which is in connection with the flow apertures of the cover part; a fuel jet located in the cover part and extending inside the flame tube for feeding fuel into the flame tube.

IPC Classes  ?

• F23R 3/12 - Air inlet arrangements for primary air inducing a vortex
• F23R 3/44 - Combustion chambers comprising a tubular flame tube within a tubular casing
• F23R 3/58 - Cyclone or vortex type combustion chambers
• F23L 15/00 - Heating of air supplied for combustion
• F23R 3/06 - Arrangement of apertures along the flame tube
• F23R 3/28 - Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
• F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber

Abstract

The invention relates to a combustion chamber for burning an air-fuel mixture, a gas mixture or a gas-liquid mixture, comprising an outer casing (9); a flame tube (10) located inside the outer casing and provided with an inner space (11 ), whereby the outer casing and the flame tube form an annular channel (12) therebetween, the flame tube comprising flow apertures (13) which penetrate through its casing and interconnect the annular channel and the inner-space of the flame tube; a cover part (14) arranged in inlet ends of the outer casing and the flame tube and provided with flow apertures opening up into the annular channel; a combustion air inlet part (16) which is arranged in an outer surface of the cover part and which is in connection with the flow apertures of the cover part; a fuel jet (17) located in the cover part and extending inside the flame tube for feeding fuel into the flame tube; whereby the combustion air inlet part (16) comprises an inlet channel (20) whose initial part is located substantially perpendicularly and eccentrically with respect to a longitudinal axis of the combustion chamber and which continues on a surface of the cover part spirally towards an end of the channel such that its volume decreases, and whereby a side of the inlet channel facing the cover part is in connection with the flow apertures of the cover part.

IPC Classes  ?

• F23C 7/00 - Combustion apparatus characterised by arrangements for air supply
• F23C 3/00 - Combustion apparatus characterised by the shape of the combustion chamber
• F23R 3/12 - Air inlet arrangements for primary air inducing a vortex
• F23R 3/44 - Combustion chambers comprising a tubular flame tube within a tubular casing
• F23R 3/58 - Cyclone or vortex type combustion chambers

Abstract

The invention relates to a regenerative heat exchanger comprising a frame (9), a rotor (10) pivotally mounted to the frame, a heat transfer honeycomb system (11) arranged in the rotor, means (16, 17) for conveying a warm gas flow through the heat transfer honeycomb system, means (18, 19) for conveying a cold gas flow through the heat transfer honeycomb system, whereby heat brought by the warm gas flow to the heat transfer honeycomb system is transferred in the heat transfer honeycomb system to the cold gas flow, heating it, and whereby the means (16 to 19) for conveying both the warm and the cold gas flows are arranged to convey said flows radially through the heat transfer honeycomb system.

IPC Classes  ?

• F28D 19/04 - Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
• F23L 15/02 - Arrangements of regenerators