CATALYTIC CONVERTER

• US 3,771,969 A
• Filed: 05/10/1971
• Issued: 11/13/1973
• Est. Priority Date: 05/10/1971
• Status: Expired due to Term

• Current Assignee: George E. Scheitlin
• Original Assignee: George E. Scheitlin
• Inventors: Scheitlin, George E.
• Primary Examiner(s): Richman, Barry S.
• Application Number:
  US05/141,730
• Time in Patent Office: 918 Days
• Field of Search: 23/288F,2E 60/299,301 423/213,214
• US Class Current: 422/171
• CPC Class Codes: F01N 13/0097 the purifying devices are arranged in a single housing
• CPC Class Codes: F01N 13/14 having thermal insulation exhaust manifolds F01N13/102
• CPC Class Codes: F01N 2330/08 Granular material
• CPC Class Codes: F01N 2450/04 Filling or emptying a chamber with granular material
• CPC Class Codes: F01N 2470/00 Structure or shape of gas passages, pipes or tubes
• CPC Class Codes: F01N 3/2846 specially adapted for granular supports, e.g. pellets
• CPC Class Codes: F01N 3/2885 with exhaust silencers in a single housing
• CPC Class Codes: F01N 3/34 using air conduits or jet air pumps, e.g. near the engine exhaust port
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A catalytic converter for removing noxious pollutants from an exhaust gas stream having a pair of longitudinally spaced conversion chambers mounted therein between its inlet and outlet. Each of said chambers extends diametrically across the converter and each is provided with a pair of opposed faces having openings formed therein whereby the exhaust gases will pass successively through said chambers during their movement from the inlet to the outlet.

Claims

2. In a catalytic converter for removing noxious pollutants from an exhaust gas stream, an elongated shell having side walls, end caps closing the ends of said shell, gas inlet and outlet conduits in open communication with the interior of said shell adjacent its opposed ends, first and second longitudinally spaced conversion chambers mounted in said shell and adapted to hold catalytic material for removing the noxious pollutants from exhaust gases, each of said chambers extending obliquely across said shell, said first chamber having a first perforate wall surface in open communication with said inlet conduit and a second perforate wall surface in open communication with a first perforate wall surface on said second chamber, said second chamber having a second perforate wall surface in open communication with said outlet conduit, and a plurality of longitudinally extending, laterally spaced braces extending between the bottom of each of said chambers and the adjacent shell side wall.

3. The invention as set forth in claim 2 in which each of said braces is generally wedge-shaped and comprises a pair of V-shaped wals abutting at their apex the bottom wall of one of said chambers between the openings therein, and fingers projecting outwardly from said V-shaped walls rigidly connected to the shell inner side wall.

4. The invention as set forth in claim 2 in which each of said chambers has its end disposed toward the inlet conduit interconnected to the bottom of the shell and its end disposed toward the outlet conduit interconnected to the top of the shell.

5. In a catalytic converter for removing noxious pollutants from an exhaust gas stream, an elongated shell having side walls, end caps closing the ends of said shell, gas inlet and outlet conduits iN open communication with the interior of said shell adjacent its opposed ends, and first and second longitudinally spaced conversion chambers mounted in said shell and adapted to hold catalytic material for removing the noxious pollutants from exhaust gases, said first and second chambers extending obliquely across said shell and comprising a bottom wall connected at its opposed ends to the bottom portion of the shell side walls and having a centrally disposed transition section spaced from said bottom portion, a top wall having a centrally disposed transition section connected to the top portion of said shell side walls and having its opposed ends spaced from said top and bottom portions of said side walls, a pair of side walls interconnecting said top and bottom walls, a first pair of end plates connected to said top, bottom and pair of side walls at the opposed ends thereof, and a second pair of end plates connected to said top, bottom and pair of side walls at the opposed ends of said transition sections, each of said top and bottom walls having pluralities of openings formed therein between its transition section and its opposed ends whereby the top wall of said first chamber will be in open communication with siad inlet conduit and the bottom wall of said first chamber will be in open communication with the bottom wall of said second chamber and the top wall of said second chamber will be in open communication with said outlet conduit.

6. The invention as set forth in claim 5 with the addition that said bottom wall has a plurality of openings formed therein within the extent of its transition section, and a tube adapted to be connected to a source of pressurized air is mounted in the shell side walls in open communication with the space between said second pair of end plates.