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Title: Engine system and method including first and second turbochargers

Abstract

An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.

Inventors:
Issue Date:
Research Org.:
Caterpillar Inc., Deerfield, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1824019
Patent Number(s):
11022028
Application Number:
16/405,600
Assignee:
Caterpillar Inc. (Peoria, IL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
DOE Contract Number:  
AR0000953
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/07/2019
Country of Publication:
United States
Language:
English

Citation Formats

Lusardi, Christopher. Engine system and method including first and second turbochargers. United States: N. p., 2021. Web.
Lusardi, Christopher. Engine system and method including first and second turbochargers. United States.
Lusardi, Christopher. Tue . "Engine system and method including first and second turbochargers". United States. https://www.osti.gov/servlets/purl/1824019.
@article{osti_1824019,
title = {Engine system and method including first and second turbochargers},
author = {Lusardi, Christopher},
abstractNote = {An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {6}
}

Works referenced in this record:

Centrifugal Flow Gas Turbine
patent, December 1971


Exhaust gas recirculation system in an internal combustion engine
patent, November 2001


Systems and Methods for an Engine with a Two-Stage Turbocharger
patent-application, February 2013


Two-turbocharger engine and method
patent-application, August 2006


Supercharged internal combustion engine
patent-application, March 2006


Engine
patent, October 2014


Internal Combustion Engine
patent-application, October 2015


Power Generation System and Method for Activating Fuel Cell in Power Generation System
patent-application, July 2018


Method and system for influencing the quantity of exhaust gas recirculated in a pressure charged internal combustion engine
patent-application, May 2006


Exhaust system having parallel asymmetric turbochargers and EGR
patent, October 2012


Series/parallel turbochargers and switchable high/low pressure EGR for internal combustion engines
patent, January 2007