Title:
STRUCTURE OF SETTING PART OF PRIMARY AIR LIMITING PLATE FOR GAS BURNER
Document Type and Number:
Japanese Patent JP3450964
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a change of the area of a primary air port even if an external force is accidentally exerted on a setting part of a primary air limiting plate in a product distribution stage by providing a rotation stopping means for preventing the primary air limiting plate from rotating about a perpendicular line with respect to the surface of the primary air limiting plate.
SOLUTION: If a gas nozzle 32 connected to a nozzle mounting part 320 of a cock 6 in a casing 7 of a table heater is inserted into a through hole 21 of a primary air limiting plate 2 and a coil spring 31 is interposed between the part 320 and the plate 2, an engaging claw 26 bent from the plate 2 is brought into engagement with a recessed groove 47 formed on the outer periphery of a taper cylinder 43 at the upstream end of a mixing pipe 40, so that the plate 2 is put in such a condition that the plate is prevented from rotating. As a result, the size of a primary air port formed between an upstream opening 40a of the pipe 40 of a main burner 4 and the outer periphery of the plate 2 can be kept constant.
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Inventors:
Yoshihiro Mizutani
Application Number:
JP15858196A
Publication Date:
September 29, 2003
Filing Date:
June 19, 1996
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
F23N3/02; F23D14/06; F23D14/60; F23D17/00; F23D23/00; (IPC1-7): F23D14/06; F23D14/60; F23D17/00; F23D23/00
Domestic Patent References:
| JP5746241U | ||||
| JP640621U | ||||
| JP5628549U | ||||
| JP53115440U | ||||
| JP4967233U | ||||
| JP51240B1 | ||||
| JP5440307Y1 | ||||
| JP388166Y1 |
Attorney, Agent or Firm:
Eiji Miyazaki