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:
Jul. 18, 1989
Filed:
May. 20, 1988
Dieter Goerlich, Emmering, DE;
Webasto AG Fahrzeugtechnik, Stockdorf, DE;
Abstract
An exhaust gas unit, for multicylinder diesel internal combustion engines with at least one particulate filter and a regeneration device, in which at least four particulate filters are placed parallel to one another in branches of at least one exhaust gas pipe. Thus, in the exhaust gas unit of such a multicylinder diesel internal combustion engine, several small particulate filters can be used that can be produced at resonable cost. At the same time operating safety is increased, since when one of the parallel filters falls or during regeneration of one of them, the operation of the internal combustion engine can continue essentially unimpeded, so that a vehicle equipped with such an internal combustion engine can continue to be operated. With such a design of an exhaust gas unit, a regeneration device in the form of a burner that preferably can be operated by exhaust gases from the exhaust gas unit can be assigned to each pair of filters. Alternatively, a single, common regeneration device in the form of a burner can be provided for all parallel filters of the exhaust gas unit. Such an exhaust gas unit can be advantageously used for a multicylinder diesel internal combustion engine of the V type as well as of the in-line type.