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. 30, 1985
Filed:
Jul. 30, 1984
Applicant:
Inventors:
Otto A Ludecke, Rochester, MI (US);
Terrence L Stark, Washington, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60303 ; 55466 ; 55523 ; 55DI / ; 55DI / ; 60311 ;
Abstract
A wall flow monolith, for example, of circular configuration has its outer surface at the inlet end cut on tangents so as to provide four chordal flat surfaces with at least alternate channels next to these surfaces plugged at the inlet end so that exhaust flow is through these chordal surfaces into these channels whereby particulates are collected on the chordal surface. Glow plugs are positioned to ignite particulates on these chordal surfaces and, these glow plugs are energized either individually or in sets as an accumulated time function of engine operation.