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:
May. 22, 1990
Filed:
Jun. 06, 1989
Yoshihiro Nomura, Aichi, JP;
Yoichiro Ohkubo, Aichi, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JP;
Abstract
A catalytic combustion device has a fuel supply means communicated with a fuel supply source, an air supply passage communicated with an air supply source, a premixing chamber for mixing together fuel supplied from the fuel supply means and combustion air supplied from the air supply passage to form a fuel-air mixture, a catalyst installed in a combustion chamber to cause oxidation reaction of the fuel-air mixture supplied thereto, thereby effecting catalytic combustion, and an exhaust passage for discharging combustion gas from the catalyst in the combustion chamber. In the improvement, an exhaust passage is defined outside the premixing chamber with a predetermined spacing provided therebetween, the exhaust passage being communicated with the combustion chamber, and an air supply passage is defined outside the exhaust passage with a predetermined spacing provided therebetween, the air supply passage being communicated with the premixing chamber, thereby heating the premixing chamber by means of the combustion gas in the exhaust passage to vaporize the fuel and also heating said air supply passage to preheat the combustion air.