Title:
【発明の名称】エンジンの過渡応答性を改善する方法及び装置
Document Type and Number:
Japanese Patent JPH08501851
Kind Code:
A
Abstract:
During low speed operation of a turbocharged engine the transient response time of the engine from low speed and low loads to high speed and high loads is slow because of the slow response time to raise the boost pressure level from the turbocharger. The present invention provides an apparatus to improve the transient response time of the engine by causing at least a selected subset of the combustion chambers to be operated in a two-stroke pumping mode of operation while maintaining the others in a four-stroke mode, thus, increasing the airflow through the turbine of the turbocharger during low speed and/or low loads operation of the engine maintaining a high boost pressure level.
Inventors:
Clark John M
Faretti James Jay
Faretti James Jay
Application Number:
JP50060594A
Publication Date:
February 27, 1996
Filing Date:
May 17, 1993
Export Citation:
Assignee:
CATERPILLAR INCORPORATED
International Classes:
F01L9/10; F02B37/00; F01L1/26; F01L9/20; F02B69/06; F02D13/02; F02D23/02; F02B3/06; F02B75/02; F02F1/24; F02F1/42; (IPC1-7): F01L9/04; F01L1/26; F02B37/00
Domestic Patent References:
| JPH01181250A | 1989-07-19 | |||
| JPH0360251A | 1991-03-15 | |||
| JPH04177947A | 1992-06-25 |
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)