(19)
(11) EP 0 350 032 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.11.1990 Bulletin 1990/45

(43) Date of publication A2:
10.01.1990 Bulletin 1990/02

(21) Application number: 89112363.0

(22) Date of filing: 06.07.1989
(51) International Patent Classification (IPC)5: F23C 11/00, F23C 3/00, F23C 7/00, F23D 11/10
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 08.07.1988 JP 170429/88
08.07.1988 JP 170430/88

(60) Divisional application:
92105621.4 / 0493376

(71) Applicant: NIPPON CHEMICAL PLANT CONSULTANT CO., LTD.
Chiyoda-ku Tokyo100 (JP)

(72) Inventor:
  • Maruko, Saburo
    Yomato-shi Kanagawa-ken (JP)

(74) Representative: TER MEER - MÜLLER - STEINMEISTER & PARTNER 
Mauerkircherstrasse 45
81679 München
81679 München (DE)


(56) References cited: : 
   
       


    (54) Combustion apparatus


    (57) A combustion apparatus comprises: a large-diameter sleeve-like element (1) forming an incoming passage (3) through which an air/fuel mixture gas flows in a predetermined direction; at least one small-diameter sleeve-like element (2) disposed in the incoming passage, which small-diameter sleeve-like element forms an outgoing passage (4) through which a combustion gas having been issued from the incom­ing passage flows in a direction counter to the above predetermined direction; an air/fuel mixing unit (15) for issuing the air/fuel mixture gas under a predetermined pressure to a main incoming port (5) located in an upstream side of the incoming passage; an auxiliary incoming unit (6) for issuing a combustion gas produced by a pilot burner (12) to the upstream side of the incoming passage prior to supplying the air/fuel mixture gas to the incoming pas­sage; and a combustion-gas outlet port (7) for discharging the combustion gas having passed through the outgoing passage, which combustion-gas outlet port communicates with an outlet opening of the outgoing passage.







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