Totally Aerated Combustion Burner
AssigneeRinnai Corporation
InventorKazuyuki Akagi
Life of this patent
Estimating the term…
Abstract
An outer peripheral edge part of the air-fuel mixture permeable member is connected to a portion away outward by a predetermined distance from an inner peripheral edge of the burner frame. Between the burner frame and the air-fuel mixture permeable member a clearance reaching the inner peripheral edge of the burner frame is secured at a position inward of the outer peripheral part of the air-fuel mixture permeable member. Preferably, a bent edge part formed on an inner peripheral edge of the burner frame, in a manner to be bent toward the air-fuel mixture permeable member. The amount of the air-fuel mixture to flow into the clearance is limited to a smaller amount.
Claims5
A totally aerated combustion burner comprising:
- a burner body which is supplied inside thereof with an air-fuel mixture;
- and a combustion plate part which covers an open surface of the burner body and through which the air-fuel mixture is ejected,
- the combustion plate part being made up of a burner frame in a shape of a picture frame, and an air-fuel mixture permeable member which is made of heat-resistant fibers and which covers, from a side opposite to the burner body, an opening enclosed by the burner frame, wherein:
- an outer peripheral edge part of the air-fuel mixture permeable member is connected to a portion away outward by a predetermined distance from an inner peripheral edge of the burner frame;
- a stepped part is formed in at least one of the burner frame and the air-fuel mixture permeable member at a position inward of the outer peripheral edge part of the air-fuel mixture permeable member, the stepped part being bent in a direction away from the other of the burner frame and the air-fuel mixture permeable member;
- and
- a clearance reaching the inner peripheral edge of the burner frame is secured by the stepped part, between the burner frame and the air-fuel mixture permeable member.
Dependencies are inferred from the claim text.