公开(公告)号：US4517943A

公开(公告)日：1985-05-21

申请号：US514229

申请日：1983-07-15

Applicant: Jack A. Bert ,  R. Eric Olsen

Inventor： Jack A. Bert ,  R. Eric Olsen

IPC: F02P5/155 ,  F02P5/04

CPC classification number: F02P5/155 ,  Y02T10/46

Abstract: Methods and apparatus for removing combustion chamber deposits during normal engine operation by advancing spark timing during intermittent series of compression strokes for each cylinder of a spark-ignition, internal-combustion engine in turn.

Abstract translation: 依次在火花点火式内燃机的每个气缸的间歇式压缩冲程期间推进火花正时的方法和装置，用于在正常的发动机运行期间除去燃烧室沉积物。