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. 02, 1987
Filed:
Jan. 02, 1986
Siegfried Worner, Esslingen, DE;
Walter ttle, Faurndau, DE;
J. Eberspacher, , DE (US);
Abstract
An exhaust gas treatment device adapted to be connected into an exhaust line of an internal combustion engine comprises a porous body made of heat resistant material and having a plurality of conduits extending axially therethrough having an inlet end and an opposite outlet. The construction includes a closure member closing the inlet ends of at least some of the conduits. An additional closing member closes the outlet ends of at least some of the other of the conduits. A catalyst mesh material is positioned in at least some of the conduits which have open inlet ends. Exhaust gases flow into the inlet ends which are open. In some if not all of the cases, the opposite ends of the open inlet ends that is the outlet ends are closed so that the gases must flow through the porous walls of the porous body and move into contact with the catalyst mesh material of the others of the conduits and flow out the ends of those conduits which are open. The member which provides the closures for the individual conduits at the respective inlet and outlet ends may comprise simply plug elements or fixed or rotatable end members at each end which as closure plate parts arranged in substantially a checkerboard pattern so that alternately adjacent squares of the pattern are opened.