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Title: Operation of internal combustion engine with improved fuel efficiency

Abstract

A process of operating a spark-ignited internal combustion engine (SI-ICE) with improved fuel efficiency and reduced emissions including under steady state and under lean-operating conditions at high overall air to fuel (AFR) ratios. A first supply of high octane hydrocarbon fuel, such as gasoline or natural gas, and a first supply of oxidant are fed to a fuel reformer to produce a gaseous reformate with a reforming efficiency of greater than 75 percent relative to equilibrium. The gaseous reformate is mixed with a second supply of oxidant, after which the resulting reformate blended oxidant is fed with a second supply of high octane hydrocarbon fuel to the SI-ICE for combustion. Steady state fuel efficiency is improved by more than 3 percent, when the reformate comprises from greater than about 1 to less than about 18 percent of the total volume of reformate blended oxidant fed to the engine.

Inventors:
; ; ;
Issue Date:
Research Org.:
Precision Combustion, Inc., North Haven, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735315
Patent Number(s):
10787959
Application Number:
16/463,409
Assignee:
Precision Combustion, Inc. (North Haven, CT)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
SC0013709
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/06/2017
Country of Publication:
United States
Language:
English

Citation Formats

Roychoudhury, Subir, Mastanduno, Richard, Allocco, Eric Edward, and Vilekar, Saurabh. Operation of internal combustion engine with improved fuel efficiency. United States: N. p., 2020. Web.
Roychoudhury, Subir, Mastanduno, Richard, Allocco, Eric Edward, & Vilekar, Saurabh. Operation of internal combustion engine with improved fuel efficiency. United States.
Roychoudhury, Subir, Mastanduno, Richard, Allocco, Eric Edward, and Vilekar, Saurabh. Tue . "Operation of internal combustion engine with improved fuel efficiency". United States. https://www.osti.gov/servlets/purl/1735315.
@article{osti_1735315,
title = {Operation of internal combustion engine with improved fuel efficiency},
author = {Roychoudhury, Subir and Mastanduno, Richard and Allocco, Eric Edward and Vilekar, Saurabh},
abstractNote = {A process of operating a spark-ignited internal combustion engine (SI-ICE) with improved fuel efficiency and reduced emissions including under steady state and under lean-operating conditions at high overall air to fuel (AFR) ratios. A first supply of high octane hydrocarbon fuel, such as gasoline or natural gas, and a first supply of oxidant are fed to a fuel reformer to produce a gaseous reformate with a reforming efficiency of greater than 75 percent relative to equilibrium. The gaseous reformate is mixed with a second supply of oxidant, after which the resulting reformate blended oxidant is fed with a second supply of high octane hydrocarbon fuel to the SI-ICE for combustion. Steady state fuel efficiency is improved by more than 3 percent, when the reformate comprises from greater than about 1 to less than about 18 percent of the total volume of reformate blended oxidant fed to the engine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}

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Works referenced in this record:

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