Title:
内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP3557925
Kind Code:
B2
Abstract:
An emission control apparatus for an internal combustion engine has a bypass passage (15) bypassing a portion of a main exhaust passage (13) located upstream of an exhaust gas-purifying catalyst device (14), an adsorbent (16) provided in the bypass passage (15), a passage switching device (17) for switching between flow of exhaust gas to the bypass passage (15) and flow of exhaust gas to the main exhaust passage (13), and a bypass flow control device (15a, 15b) for adjusting a flow that occurs through the bypass passage (15) when the unburned gas component is desorbed (released) from the adsorbent (16) so that the flow through the bypass passage (15) becomes equal to or less than a predetermined flow and assumes a proportion that is equal to or less than a predetermined proportion relative to the flow through the main exhaust passage (13).
Inventors:
Kazuhiro Sakurai
Tsuyoshi Watanabe
Tsuyoshi Watanabe
Application Number:
JP36467098A
Publication Date:
August 25, 2004
Filing Date:
December 22, 1998
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B01D53/94; F01N3/08; F01N3/20; F01N3/24; F01N3/28; F02D41/14; F01N13/02; (IPC1-7): F01N3/24; F01N3/08; F01N3/20; F01N3/28; F02D41/14
Domestic Patent References:
| JP6093844A | ||||
| JP60190923U | ||||
| JP10047044A | ||||
| JP2000073747A | ||||
| JP8093458A |
Attorney, Agent or Firm:
Tsutomu Toyama
Hidemi Matsukura
Yutaka Nagata
Yoshiyuki Kawaguchi
Hidemi Matsukura
Yutaka Nagata
Yoshiyuki Kawaguchi