Title:
EXHAUST GAS PURIFYING DEVICE OF DIESEL ENGINE
Document Type and Number:
Japanese Patent JPH04231614
Kind Code:
A
Abstract:
PURPOSE:To reduce the burnt remnant at both end parts of a diesel particulate filter to the minimum at the time of regenerating process. CONSTITUTION:Such a diesel particulate filter is employed, as which having a low back pressure on the outer layer side thereof, and a high back pressure on the inner layer side thereof. For example, such components are used as a diesel particulate filter 5 having air holes which become smaller gradually across a range from the first carrier 51 on the outer layer side to the first carrier 52 on the inner layer side, or a diesel particulate filter 10 whose cell diameter becomes larger gradually across a range from the first carrier 11 on the outer layer side to the second carrier 12 on the inner layer side. (the cell number par unit area becomes smaller gradually.)
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Inventors:
KANAZAWA HIROYOSHI
ARAKAWA KENICHI
SHIKAME YOSHIHIRO
KAGEYAMA TERUTAKA
KONDO TOSHIHARU
ITO KEIJI
ARAKAWA KENICHI
SHIKAME YOSHIHIRO
KAGEYAMA TERUTAKA
KONDO TOSHIHARU
ITO KEIJI
Application Number:
JP40835890A
Publication Date:
August 20, 1992
Filing Date:
December 27, 1990
Export Citation:
Assignee:
TOYODA AUTOMATIC LOOM WORKS
TOYOTA MOTOR CORP
NIPPON DENSO CO
TOYOTA MOTOR CORP
NIPPON DENSO CO
International Classes:
F01N3/02; F02B3/06; (IPC1-7): F01N3/02
Domestic Patent References:
| JP1127918B | ||||
| JP61074616B | ||||
| JPS60204913A | 1985-10-16 |
Attorney, Agent or Firm:
Hiroshi Okawa