公开(公告)号：US08997698B1

公开(公告)日：2015-04-07

申请号：US14096119

申请日：2013-12-04

Applicant: Delphi Technologies, Inc.

Inventor： Gregory T. Roth ,  Harry L Husted ,  Mark C. Sellnau

IPC: F01P1/04 ,  F01P7/14

CPC classification number: F01P3/08 ,  F01P2023/08

Abstract: A system for a multi-cylinder compression ignition engine includes a plurality of nozzles, at least one nozzle per cylinder, with each nozzle configured to spray oil onto the bottom side of a piston of the engine to cool that piston. Independent control of the oil spray from the nozzles is provided on a cylinder-by-cylinder basis. A combustion parameter is determined for combustion in each cylinder of the engine, and control of the oil spray onto the piston in that cylinder is based on the value of the combustion parameter for combustion in that cylinder. A method for influencing combustion in a multi-cylinder engine, including determining a combustion parameter for combustion taking place in in a cylinder of the engine and controlling an oil spray targeted onto the bottom of a piston disposed in that cylinder is also presented.

Abstract translation: 用于多气缸压缩点火发动机的系统包括多个喷嘴，每个气缸至少有一个喷嘴，每个喷嘴构造成将油喷射到发动机的活塞的底侧以冷却该活塞。 以缸为单位提供喷嘴喷油喷射的独立控制。 确定用于在发动机的每个气缸中燃烧的燃烧参数，并且基于该气缸中的燃烧的燃烧参数的值来控制在该气缸中的活塞上的喷油。 还提出了一种用于影响多缸发动机燃烧的方法，包括确定发动机气缸中发生燃烧的燃烧参数，并且控制目标在设置在该气缸中的活塞底部的喷油器。