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Title: Jet plume injection and combustion system for internal combustion engines

Abstract

An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure.

Inventors:
 [1];  [2];  [3]
  1. (Kensington, CA)
  2. (Berkeley, CA)
  3. (Albany, CA)
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
OSTI Identifier:
869077
Patent Number(s):
5271365
Assignee:
United States of America as represented by United States (Washington, DC) LBNL
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
jet; plume; injection; combustion; internal; engines; improved; engine; disclosed; rich; air; fuel; mixture; furnished; pressure; generator; cavities; adjacent; cylinder; injected; orifices; head; space; form; turbulent; plumes; prior; ignition; cavity; portion; remaining; ignited; provide; secondary; comprising; incomplete; products; initiate; formed; formation; found; yield; maximum; shortening; time; period; attain; jet plume; combustion products; internal combustion; time period; combustion engine; fuel mixture; head space; combustion engines; maximum pressure; combustion product; complete combustion; turbulent jet; improved combustion; incomplete combustion; /123/

Citation Formats

Oppenheim, Antoni K., Maxson, James A., and Hensinger, David M. Jet plume injection and combustion system for internal combustion engines. United States: N. p., 1993. Web.
Oppenheim, Antoni K., Maxson, James A., & Hensinger, David M. Jet plume injection and combustion system for internal combustion engines. United States.
Oppenheim, Antoni K., Maxson, James A., and Hensinger, David M. Fri . "Jet plume injection and combustion system for internal combustion engines". United States. https://www.osti.gov/servlets/purl/869077.
@article{osti_869077,
title = {Jet plume injection and combustion system for internal combustion engines},
author = {Oppenheim, Antoni K. and Maxson, James A. and Hensinger, David M.},
abstractNote = {An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices from the cavities into the head space of the cylinder to form one or more turbulent jet plumes in the head space of the cylinder prior to ignition of the rich air/fuel mixture in the cavity of the jet plume generator. The portion of the rich air/fuel mixture remaining in the cavity of the generator is then ignited to provide a secondary jet, comprising incomplete combustion products which are injected into the cylinder to initiate combustion in the already formed turbulent jet plume. Formation of the turbulent jet plume in the head space of the cylinder prior to ignition has been found to yield a higher maximum combustion pressure in the cylinder, as well as shortening the time period to attain such a maximum pressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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