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:
Jun. 04, 1985
Filed:
Jul. 12, 1984
Yuhiko Kiyota, Kyoto, JP;
Katsuyuki Tsuji, Kyoto, JP;
Satoru Kume, Kyoto, JP;
Hiroaki Takada, Hyogo, JP;
Kiyoichi Shinsei, Hyogo, JP;
Akio Matsumoto, Hyogo, JP;
Hitoshi Ogawa, Hyogo, JP;
Mitsubishi Jiboshia Kogyo Kabushiki Kaisha, both of, JP;
Mitsubishi Denki Kabushiki Kaisha, both of, JP;
Abstract
A diesel particulate filter system for treating the exhaust gas of a diesel engine which is small in size and inexpensive. The system includes a particulate filter connected in a gas line from the engine, a burner, including an ignition plug, connected at a point upstream of the particulate filter and which is supplied with fuel, a primary air flow for atomizing the fuel, and a secondary air flow for burning the particulates trapped in the particular filter and which supplies the particulate filter with a hot burning gas produced by the ignition plug. Primary and secondary pumps supply, respectively, the primary and secondary air flows. A single motor drives both the primary and secondary air pumps. The ignition plug and motor are controlled so that when the amount of particulates trapped in the filter exceeds a preset level, the ignition plug and motor are activated to clean the filter by burning the particulates in the burner.