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Title: Adaptive individual-cylinder thermal state control using piston cooling for a GDCI engine

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.
Authors:
; ;
Publication Date:
OSTI Identifier:
1177554
Report Number(s):
8,997,698
14/096,119
DOE Contract Number:
EE0003258
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 04
Research Org:
Delphi Technologies, Inc., Troy, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS