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Title: Internal combustion engine system having a power turbine with a broad efficiency range

Abstract

An engine system incorporating an air breathing, reciprocating internal combustion engine having an inlet for air and an exhaust for products of combustion. A centripetal turbine receives products of the combustion and has a housing in which a turbine wheel is rotatable. The housing has first and second passages leading from the inlet to discrete, approximately 180.degree., portions of the circumference of the turbine wheel. The passages have fixed vanes adjacent the periphery of the turbine wheel and the angle of the vanes in one of the passages is different than those in the other so as to accommodate different power levels providing optimum approach angles between the gases passing the vanes and the blades of the turbine wheel. Flow through the passages is controlled by a flapper valve to direct it to one or the other or both passages depending upon the load factor for the engine.

Inventors:
;
Issue Date:
Research Org.:
Deere & Co., Moline, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176225
Patent Number(s):
7694518
Application Number:
11/838,645
Assignee:
Deere & Company (Moline, IL)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
DOE Contract Number:  
FC26-05NT42422
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Aug 14
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Whiting, Todd Mathew, and Vuk, Carl Thomas. Internal combustion engine system having a power turbine with a broad efficiency range. United States: N. p., 2010. Web.
Whiting, Todd Mathew, & Vuk, Carl Thomas. Internal combustion engine system having a power turbine with a broad efficiency range. United States.
Whiting, Todd Mathew, and Vuk, Carl Thomas. Tue . "Internal combustion engine system having a power turbine with a broad efficiency range". United States. https://www.osti.gov/servlets/purl/1176225.
@article{osti_1176225,
title = {Internal combustion engine system having a power turbine with a broad efficiency range},
author = {Whiting, Todd Mathew and Vuk, Carl Thomas},
abstractNote = {An engine system incorporating an air breathing, reciprocating internal combustion engine having an inlet for air and an exhaust for products of combustion. A centripetal turbine receives products of the combustion and has a housing in which a turbine wheel is rotatable. The housing has first and second passages leading from the inlet to discrete, approximately 180.degree., portions of the circumference of the turbine wheel. The passages have fixed vanes adjacent the periphery of the turbine wheel and the angle of the vanes in one of the passages is different than those in the other so as to accommodate different power levels providing optimum approach angles between the gases passing the vanes and the blades of the turbine wheel. Flow through the passages is controlled by a flapper valve to direct it to one or the other or both passages depending upon the load factor for the engine.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {4}
}

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Works referenced in this record:

Development of VFT (Variable Flow Turbocharger)
conference, March 1999