Burner

• US 8,702,421 B2
• Filed: 03/19/2009
• Issued: 04/22/2014
• Est. Priority Date: 03/24/2008
• Status: Active Grant

• Current Assignee: Shinfuji Burner Co., Ltd.
• Original Assignee: Shinfuji Burner Co., Ltd.
• Inventors: Yamamoto, Akira, Yamamoto, Hiroshi
• Primary Examiner(s): Tran, Len
• Assistant Examiner(s): JOHNSON, TIFFANY A
• Application Number:
  US12/922,866
• Publication Number:
  US 20110027733A1
• Time in Patent Office: 1,860 Days
• Field of Search: 431/255, 431/254, 431/256, 431/344, 431/132, 431/24, 431/127, 431/129, 431/144, 313/574, 219/368, 361/258
• US Class Current: 431/255
• CPC Class Codes: F23D 14/04 induction type, e.g. Bunsen burner
• CPC Class Codes: F23D 2203/1015 spherical
• CPC Class Codes: F23Q 3/002 using piezoelectric elements
• CPC Class Codes: F23Q 3/008 Structurally associated with fluid-fuel burners

Abstract

A burner includes a housing 1, an intake pipe 3 and a burner head 4. Gas in the housing 1 is supplied to the burner head 4 through the intake pipe 3. An electric wire 8 extends through the intake pipe 3 which connects a piezoelectric element 7 to a core wire 10 from which electric discharge is generated near burner ports 9 of the burner head 4 by the piezoelectric element 7. Since the wire 8 is not exposed to outside the intake pipe 3, the wire 8 is never caught and damaged by an external object. Since air-gas mixture which is kept at around the room temperature is flowing through the intake pipe 3, the wire 8 is less likely to overheat during use of the burner. Thus, it is not necessary to provide the wire 8 with a shield plate for protecting the wire 8.

Claims

1. A burner comprising:

a burner head having burner ports;

an intake pipe through which a mixture of gas and air is to be supplied to the burner head so as to be released through the burner ports, said intake pipe being connected to said burner head;

a core wire provided adjacent to the burner ports;

an electric discharge generator arranged to generate electric discharge from the core wire, to thereby ignite the mixture;

an electric wire extending from said electric discharge generator into said burner head so as to connect the electric discharge generator to the core wire;

wherein said burner head is formed with a through hole through which the core wire extends from inside to outside the burner head;

wherein an insulator is disposed between the core wire and the burner head to keep the core wire insulated from the burner head; and

wherein said electric wire extends through said intake pipe from said electric discharge generator to said burner head, so that said electric wire is disposed entirely within said intake pipe from said electric discharge generator until the electric wire reaches said burner head.

2. The burner of claim 1 wherein said electric discharge generator comprises a piezoelectric element.

3. A burner comprising:

a burner head having burner ports;

an intake pipe through which a mixture of gas and air is to be supplied to the burner head so as to be released through the burner ports, said intake pipe being connected to said burner head;

a core wire provided adjacent to the burner ports; and

an electric discharge generator arranged to generate electric discharge from the core wire, to thereby ignite the mixture;

wherein said electric discharge generator has an electric discharge generator body and an electric discharge generator terminal that is extended from the electric discharge generator body to the burner head so that one end of said electric discharge generator terminal protrudes from the burner head, said core wire comprising said one end of said electric discharge generator terminal; and

wherein said electric discharge generator terminal extends through said intake pipe from said electric discharge generator body to said burner head, so that said electric discharge generator terminal is disposed entirely within said intake pipe from said electric discharge generator body until the electric discharge generator terminal reaches said burner head.

4. The burner of claim 3 wherein said electric discharge generator comprises a piezoelectric element.