(19)
(11) EP 3 865 770 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.09.2021 Bulletin 2021/38

(43) Date of publication A2:
18.08.2021 Bulletin 2021/33

(21) Application number: 21157657.4

(22) Date of filing: 17.02.2021
(51) International Patent Classification (IPC): 
F23D 14/04(2006.01)
F23D 14/70(2006.01)
 F23D 14/64(2006.01)
(52) Cooperative Patent Classification (CPC):
F23D 2203/1015; F23D 14/04; F23D 2900/14064; F23D 14/70; F23D 14/64; F23D 2203/102
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 17.02.2020 US 202062977541 P

(71) Applicant: Beckett Thermal Solutions
North Ridgeville, OH 44039 (US)

(72) Inventors:
  • O'DONNELL, Michael J.
    Avon, Ohio 44011 (US)
  • MARICIC, Richard
    Parma, Ohio 44129 (US)

(74) Representative: Frenkel, Matthias Alexander 
Wuesthoff & Wuesthoff Patentanwälte PartG mbB Schweigerstraße 2
81541 München
81541 München (DE)

   


(54) ULTRA-LOW NOX BURNER


(57) A burner for use with an igniter for firing a flame into a heat-exchanger includes a body having a sidewall that defines an interior chamber. A first opening in the body receives a pre-mixed mixture of air and fuel. A second opening in the body is in fluid communication with the first opening. A distributor is connected to the body and closes the second opening. The distributor includes a first portion and at least one curved second portion provided on the first portion. Each second portion includes a plurality of first perforations in fluid communication with the first opening in the body. The first perforations of one second portion are positioned adjacent to the igniter such that ignition of the pre-mix mixture flowing through the first perforations results in a flame through the second portion. A flange extends around the first portion and includes second perforations.







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