The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2007
Filed:
Jan. 05, 2005
Shinji Kuroda, Nagoya, JP;
Keiichi Ito, Nagoya, JP;
Yoshinori Fujisawa, Nagoya, JP;
Shinichi Yue, Nagoya, JP;
Shinji Kuroda, Nagoya, JP;
Keiichi Ito, Nagoya, JP;
Yoshinori Fujisawa, Nagoya, JP;
Shinichi Yue, Nagoya, JP;
Rinnai Corporation, Nagoya, JP;
Abstract
Disclosed is a space heater, with an air cleaning function, that monitors combustion at a burner, and prevents the halting of combustion due to the erroneous detection of a combustion abnormality. According to the present invention, a space heater includes: a heating unit control unit, which performs a 'heating operation' for igniting fuel gas at a burner to operate a heating fan; an air cleaning unit control unit, which performs an 'air cleaning operation' for operating an ion generator and an air cleaning fan; a combustion forced halt unit, for monitoring the combustion state of the burner based on a thermoelectromotive force TC generated by a thermocouple, and for halting combustion at the burner when the thermoelectromotive force TC drops, from a reference value TC_b, the equivalent of a determination level TC_j or more; and a reference value setup unit for, when the mode is shifted from an “independent heating mode”, during which only the “heating operation” is performed, to a “synchronous operating mode”, during which both the “heating operation” and the “air cleaning operation” are performed, designating as the reference value TC_b the thermoelectromotive force TC, generated by the thermocouple, that is stabilized after mode switch.