EP0092002A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fuel atomisers for oil burners
Assignee: E.ON UK PLC
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Filing: 1982-04-20
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Granted: —
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Expires: 2002-04-20
Abstract
Abstract An oil fuel atomiser for use in an oil burner comprises a cap (16) screwed onto a body member (10). The cap (16) and body member (10) are shaped to define an annular mixing chamber (15) with a plurality of exit ports (14) to give a conical spray of oil droplets. The oil may be fed through a central passage (11) through the body into inlet ports (13, 30) in the mixing chamber (15) or may be fed through an annular passage (21) or passages into the mixing chamber (15). The atomising fluid is fed through an annular passage (21) of through a central passage (11) also into the mixing chamber (15). The oil ports are arranged to produce toroidal recirculation in the annular mixing chamber (15) and the atomising fluid is injected into the mixing chamber (15) at a plurality of positions to give good mixing.
Inventors
- 👤 Malcolm Sarjeant
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 01:41
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/102; F23D11/103
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A multi-jet atomiser for an oil burner comprising a body having a plurality of exit ports leading outwardly from an annular mixing chamber to form a conical spray, means for injecting oil through oil inlet ports into the mixing chamber, the oil being injected at each oil inlet port in a direction to produce a toroidal recirculation in the annular mixing chamber with the injected oil from each inlet port passing close to an exit port at approximately right angles to the axis of the exit port and means for injecting an atomising fluid into the mixing chamber at a plurality of positions in a wall of the mixing chamber.
Claim 2
Dependent Claim
110 words
A multi-jet atomiser for an oil burner comprising a body having a plurality of exit ports leading outwardly from an annular mixing chamber to form a conical spray, means for injecting oil through oil inlet ports into the mixing chamber, the oil being injected at each oil inlet port in a direction to produce a toroidal recirculation in the annular mixing chamber with the injected oil from each inlet port passing close to an exit port at approximately right angles to the axis of the exit port and means for injecting an atomising fluid into the mixing chamber at a plurality of positions in a wall of the mixing chamber.
Claim 3
Dependent Claim
37 words
A multi-jet atomiser as claimed in claim I wherein said means for injecting an atomising fluid into the mixing chamber are at a plurality of positions in a wall of the mixing chamber opposite the exit ports.
Claim 4
Dependent Claim
41 words
A multi-jet atomiser as claimed in claim 1 wherein the mixing chamber has walls shaped to guide the injected oil in a direction across the exit ports and thence around in a recirculatory path over the wall opposite the exit ports.
Claim 5
Dependent Claim
37 words
A multi-jet atomiser for an oil burner as claimed in any of the preceding claims and having a plenum chamber or a plurality of plenum chambers through which the oil is fed into said oil inlet ports.
Claim 6
Dependent Claim
73 words
A multi-jet atomiser for an oil burner as claimed in any of the preceding claims wherein the annular mixing chamber is constituted by regions between the end of a main burner body element containing a central atomising fluid passage extending axially through the body element to atomising fluid injection ports in the end thereof and a cap which is secured onto the main burner body element and which has the said exit ports.
Claim 7
Dependent Claim
38 words
A multi-jet atomiser for an oil burner as claimed in any of claims 1 to 3 and having a plenum chamber or a plurality of plenum chambers through which the atomising fluid is fed into the mixing chamber.
Claim 8
Dependent Claim
69 words
A multi-jet-atomiser for an oil burner as claimed in any of claims 1 to 4 or 6 wherein the annular mixing chamber is constituted by regions between the end of a main burner body element containing a central oil passage extending axially through the body element to said oil inlet ports and a cap which is secured onto the main burner body element and which has said exit ports.
Claim 9
Dependent Claim
31 words
A multi-jet atomiser as claimed in claim 5 as appendant to claim 6 wherein said cap and said main burner body element have co-operating surfaces defining said plenum chamber or chambers.
Claim 10
Dependent Claim
53 words
A multi-jet atomiser for an oil burner as claimed in any of the preceding claims wherein said annular mixing chamber has a curved surface opposite each oil inlet port shaped to direct the impinging oil around a curved path towards the axis of the burner assembly and hence to promote the toroidal recirculation.
Claim 11
Dependent Claim
48 words
A multi-jet atomiser as claimed in any of the preceding claims wherein said exit ports comprise a plurality of ports evenly spaced around the longitudinal axis of the burner, the axes of the ports defining a conical surface symmetrically around and with its apex on said longitudinal axis.
References Cited (Backward Citations)
US1785802A
Cited
US1785804A
Cited
GB1424191A
Cited
US4002297A
Cited
GB1470671A
Cited
US4141505A
Cited
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