Title:
EXHAUST PARTICULATE PROCESSING DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JPH0315618
Kind Code:
A
Abstract:
PURPOSE:To effectively carry out regenerative processing of a trap by heating the trap through raising of an engine revolution speed with throttling either one of intake or exhaust at idling driving during stop and then by operating a heating device with having most of exhaust bypassed. CONSTITUTION:A trap C for scavenging exhaust particulate, a device F for heating the trap C and a plurality of throttle valves G1 and G2 for throttling at least one of intake flow or exhaust flow are provided in an exhaust passage B of an internal combustion engine A. And at idling driving during a stop, a switch valve E is closed and the throttle valves G1 and G2 are throttled driven by a means H while engine revolution speed is raised by a predetermined amount by a means I. And after a predetermined time has passed, the switch valve E is opened, the heating device F is heated, and exhaust particulate is processed by a means J. After that, the switch valve E is closed, and the above heating and throttling actions are both stopped by a means K.
Inventors:
KANESAKI NOBUKAZU
Application Number:
JP14828989A
Publication Date:
January 24, 1991
Filing Date:
June 13, 1989
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F01N3/02; F01N3/027; F01N3/023; (IPC1-7): F01N3/02
Attorney, Agent or Firm:
Tomijio Sasashima
Next Patent: JPH0315619