内燃機関へ気体燃料を導入して燃焼を制御する方法および装置

Title:

内燃機関へ気体燃料を導入して燃焼を制御する方法および装置

Document Type and Number:

Japanese Patent JP2004500514

Kind Code:

A

Abstract:

A method and apparatus for introducing gaseous fuel into a piston cylinder (310) of an operating internal combustion engine in two separate stages involves monitoring a set of engine parameters, determining engine load and engine speed from the set of engine parameters, in a first stage, introducing a first portion of the gaseous fuel into the cylinder (310) where the first portion of gaseous fuel forms a substantially homogeneous mixture comprising gaseous fuel and air prior to combustion, and in a second stage, occurring sequentially after the first stage, introducing a second portion of the gaseous fuel into the cylinder (310). The gaseous fuel quantity is variable in response to at least one of engine load and engine speed. Initiation and duration for at least one of the first and second stages is also variable in response to at least one of engine load and engine speed.

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Inventors:

Richard Ansima
Mansi, Sandeep
Owlet, patrick
Tanine, Constantin
Ruthmans Dorfa, David, A.

Application Number:

JP2001558597A

Publication Date:

January 08, 2004

Filing Date:

February 09, 2001

Export Citation:

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Assignee:

Westport Research, Inc.
Cummins, ink.

International Classes:

F02B1/12; F02B7/08; F02B23/06; F02B43/00; F02B69/04; F02D19/02; F02D19/10; F02D41/00; F02D41/02; F02D41/04; F02D41/30; F02D41/38; F02D41/40; F02D45/00; F02M21/02; F02M21/08; F02M25/00; F02M25/07; F02M37/00; F02B3/06; F02B75/02; F02D21/08; (IPC1-7): F02D19/02; F02D19/10; F02D41/02; F02D41/04; F02D41/38; F02D45/00; F02M21/02; F02M21/08; F02M25/00; F02M25/07; F02M37/00

Domestic Patent References:

JPH10103159A	1998-04-21
JP2000008898A	2000-01-11
JPH09228882A	1997-09-02
JP2000008929A	2000-01-11
JPH06241077A	1994-08-30
JPH10231744A	1998-09-02
JPH08170556A	1996-07-02

Attorney, Agent or Firm:

Yoshiharu Shirahama
Yoshitaka Kobayashi

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