Title:
CATALYTIC CONVERTER
Document Type and Number:
Japanese Patent JP2006257889
Kind Code:
A
Abstract:
To solve the problem wherein a conventional catalytic converter is low in conversion efficiency since exhaust gas flows in a laminar flow shape in a passage part of a honeycomb carrier.
This catalytic converter is formed by arranging a large number of passages 12 in parallel, and has a honeycomb-shaped catalyst carrier 11a or 11b. The passages 12 are formed in a venturi tube shape of reducing the passage cross-sectional area in its middle, to cause a speed-pressure change in gas passing through the catalyst carrier. Excellent conversion efficiency is exhibited since a contact chance with a catalyst component carried on the catalyst carrier increases on the basis of the speed-pressure change in this gas flow.
More Like This:
Inventors:
AOKI YOSHINORI
Application Number:
JP2005072608A
Publication Date:
September 28, 2006
Filing Date:
March 15, 2005
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F01N3/24; B01D53/86; B01J32/00; B01J33/00; B01J35/04; F01N3/28
Attorney, Agent or Firm:
Masaki Goto
Yoshio Matsuda
Yasunari Mita
Masaaki Iida
Yoshio Matsuda
Yasunari Mita
Masaaki Iida