| 摘要 |
#CMT# #/CMT# The frame (20) has a set of fastening units (62) for fastening a door frame of a combustion chamber door. A view and observation opening penetrates the frame, and a cavity opens at a top side of the opening. The cavity is surrounded by limiting walls (26) and an air supply opening flows into the cavity for providing connection of an air supply line. The frame is detachably connectable with the door frame and separated from the door frame. Fresh air flowing out of the cavity into a combustion chamber (8) has a higher specific weight. #CMT# : #/CMT# An independent claim is also included for a basic furnace comprising a storage core. #CMT#USE : #/CMT# Ventilation frame for ventilating a window of a combustion chamber door of a basic furnace (claimed) i.e. wood fired furnace, of a building. Can also be used for a chimney oven. #CMT#ADVANTAGE : #/CMT# The design of the frame enhances selection of possible forms and dimensions of the combustion chamber door. The frame is detachably connectable with the door frame and separated from the door frame, thus simplifying handling of the ventilation frame during transport and assembling of the ventilation frame, increasing variety of models of the combustion chamber door. The view and observation opening enables the ventilation frame to be adapted easily to form and dimensions of the door frame. The fresh air flowing out of the cavity into the combustion chamber has higher specific weight, thus enabling air to flow downwards from an inner side of the combustion chamber door and along an inner side of the window, and hence preventing admission of combustion gases to the window and avoiding sooting of the combustion gases. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a basic furnace with a combustion chamber and a ventilation frame for a door module mounted in front of the combustion chamber opening. 2 : Basic furnace 6 : Storage core 8 : Combustion chamber 20 : Ventilation frame 26 : Limiting walls 62 : Fastening units. |
