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Title: Turbocharger exhaust gas recirculation system

Abstract

A turbocharged internal combustion engine includes a bypass manifold interconnecting intake and exhaust manifolds for recycling exhaust gases back to the engine to reduce oxides of nitrogen. A compressor in the intake manifold is driven by a turbine in the exhaust manifold to pressurize intake air for the engine. The bypass manifold is connected to the intake manifold in a manner so that recycled exhaust gas does not flow through the compressor, to thereby eliminate undesirable exhaust contaminant buildup in the compressor. The bypass manifold includes a one-way valve to prevent the pressurized intake manifold air from backflowing into the exhaust system during full load operation. A control system regulates the differential pressure between the intake and exhaust manifolds by monitoring engine operating parameters. When a predetermined pressure differential is established between the exhaust and intake manifolds, the bypass manifold valve opens to recycle exhaust gases.

Inventors:
Publication Date:
OSTI Identifier:
7357230
Patent Number(s):
US 3925989
Assignee:
J. I. Case Co.
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 15 Apr 1974
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; EXHAUST RECIRCULATION SYSTEMS; DESIGN; INTERNAL COMBUSTION ENGINES; COMPRESSORS; CONTROL SYSTEMS; NITROGEN OXIDES; PRESSURE CONTROL; SUPERCHARGERS; TURBINES; VALVES; CHALCOGENIDES; CONTROL; CONTROL EQUIPMENT; ENGINES; EQUIPMENT; EXHAUST SYSTEMS; FLOW REGULATORS; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLLUTION CONTROL EQUIPMENT; TURBOMACHINERY; 330701* - Emission Control- Nitrogen Oxides

Citation Formats

Pustelnik, R J. Turbocharger exhaust gas recirculation system. United States: N. p., 1975. Web.
Pustelnik, R J. Turbocharger exhaust gas recirculation system. United States.
Pustelnik, R J. Tue . "Turbocharger exhaust gas recirculation system". United States.
@article{osti_7357230,
title = {Turbocharger exhaust gas recirculation system},
author = {Pustelnik, R J},
abstractNote = {A turbocharged internal combustion engine includes a bypass manifold interconnecting intake and exhaust manifolds for recycling exhaust gases back to the engine to reduce oxides of nitrogen. A compressor in the intake manifold is driven by a turbine in the exhaust manifold to pressurize intake air for the engine. The bypass manifold is connected to the intake manifold in a manner so that recycled exhaust gas does not flow through the compressor, to thereby eliminate undesirable exhaust contaminant buildup in the compressor. The bypass manifold includes a one-way valve to prevent the pressurized intake manifold air from backflowing into the exhaust system during full load operation. A control system regulates the differential pressure between the intake and exhaust manifolds by monitoring engine operating parameters. When a predetermined pressure differential is established between the exhaust and intake manifolds, the bypass manifold valve opens to recycle exhaust gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1975},
month = {12}
}