Title: Dedicated EGR engine with dynamic load control

Abstract

An internal combustion engine comprises a first engine bank and a second engine bank. A first intake valve is disposed in an intake port of a cylinder of the first engine bank, and is configured for metering the first flow of combustion air by periodically opening and closing according to a first intake valve lift and duration characteristic. A variable valve train control mechanism is configured for affecting the first intake valve lift and duration characteristic. Either a lift or duration of the first intake valve is modulated so as to satisfy an EGR control criterion.

Inventors:

Hayman, Alan W.; McAlpine, Robert S.; Keating, Edward J.

Issue Date:

Tue Sep 06 00:00:00 EDT 2016

Research Org.:

GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1321793

Patent Number(s):

9435298

Application Number:

13/937,280

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit, MI)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES

F02B27/0268 - {Valves}
F02B29/0406 - {Layout of the intake air cooling or coolant circuit}
F02B33/00 - Engines characterised by provision of pumps for charging or scavenging

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

F02D13/0226 - {changing valve lift or valve lift and timing}
F02D2041/0017 - {by simultaneous control of throttle and exhaust gas recirculation}
F02D41/0007 - {for control of turbo-charged or super-charged engines
F02D41/0077 - {Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position
F02D41/0082 - {per groups or banks

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

F02M26/03 - with a single mechanically or electrically driven intake charge compressor
F02M26/09 - Constructional details, e.g. structural combinations of EGR systems and supercharger systems
F02M26/15 - in relation to engine exhaust purifying apparatus
F02M26/19 - Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
F02M26/21 - with EGR valves located at or near the connection to the intake system
F02M26/23 - Layout, e.g. schematics
F02M26/38 - with two or more EGR valves disposed in parallel
F02M26/39 - with two or more EGR valves disposed in series
F02M26/43 - in which exhaust from only one cylinder or only a group of cylinders is directed to the intake of the engine
F02M26/44 - in which a main EGR passage is branched into multiple passages
F02M35/10045 - {Multiple plenum chambers
F02M35/10157 - {Supercharged engines}
F02M35/10222 - {Exhaust gas recirculation [EGR]
F02M35/10255 - {Arrangements of valves

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

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DOE Contract Number:  

EE0005654

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Jul 09

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING