Heating and cooking apparatus

Patent metadata

Field	Value
Publication number	US-2026033670-A1
Application number	US-202319099510-A
Country	US
Kind code	A1
Filing date	May 17, 2023
Priority date	Oct 3, 2022
Publication date	Feb 5, 2026
Grant date	—

Abstract

A heating and cooking apparatus HC that heats and cooks food to be heated and cooked by combusting a fuel gas, which includes: burners each of which has a tubular and elongated burner body, and multiple burner ports opened at intervals in each burner body in a longitudinal direction; infrared radiation members each of which is disposed opposite a corresponding burner body, each infrared radiation member being elongated in the longitudinal direction of each burner body and radiating infrared by being heated; and thermocouples each of which detects a flame generated when the fuel gas is supplied to each burner, ejects from each burner port, and is combusted. Even when the heating and cooking apparatus is configured such that hydrogen as the fuel gas, ejecting from each burner port, is diffused and combusted, a yield strength of each thermocouple cannot be reduced, and hydrogen flame can be detected reliably.

First claim

What is claimed is:

1 . A heating and cooking apparatus that heats and cooks food to be heated and cooked by combusting a fuel gas, comprising:
burners each of which has a tubular and elongated burner body, and multiple burner ports that are opened at intervals in each burner body in a longitudinal direction: infrared radiation members each of which is disposed opposite a corresponding burner body, each infrared radiation member being elongated in the longitudinal direction of each burner body and radiating infrared by being heated; and thermocouples each of which detects a flame that is generated when the fuel gas is supplied to each burner, ejects from each burner port, and is combusted, wherein: each burner is configured to diffuse and combust hydrogen as the fuel gas, which ejects from each burner port, and each thermocouple is disposed such that a temperature-measuring contact part thereof is located on a plane where a straight line, connecting a peripheral edge of each burner port and one end in a width direction of the corresponding infrared radiation member in the shortest way, is projected in the longitudinal direction of each burner body.

2 . The heating and cooking apparatus as claimed in claim 1 , wherein, when viewed from a side of each infrared radiation member, the temperature-measuring contact part of each thermocouple is located at a portion where a distance from one end in the longitudinal direction of each burner body is equal to or longer than a distance to a burner port adjacent to a burner port located closest to the one end in the longitudinal direction of each burner body.

Assignees

• Rinnai Kk

Inventors

• Hayashi Shusaku
• Ono Takahiro
• Ikuta Hiroyuki
• Sakuma Daisuke
• Kano Akira
• Takahashi Takaaki
• Hirata Koichi

Classifications

• F23D2208/10

  Sensing devices · CPC title

• F23D14/12

  Radiant burners · CPC title

• A47J37/0713 Primary

  with gas burners · CPC title

• F23N5/102

  using electronic means · CPC title

• F23D14/725

  Protection against flame failure by using flame detection devices (pilot flame igniters with interlock with main fuel supply F23Q9/08) · CPC title