Title:
LOW PRESSURE EXHAUST GAS RECIRCULATION SYSTEM FOR SUPERCHARGED DIESEL ENGINES
Document Type and Number:
WIPO Patent Application WO2001092711
Kind Code:
A3
Abstract:
A low pressure EGR system suitable for use as a passive retrofit system is disclosed for moving vehicles equipped with a diesel engine. The EGR loop inlet (51) is positioned upstream of the exhaust particulate filter (34) and downstream of the turbine (29) to utilize backpressure created by the exhaust particulate filter to insure EGR flow in the loop. A catalyzed soot filter in communication with the EGR pickup (51) insures cleansed EGR gases at the EGR return downstream of the air filter (27) and upstream of the compressor (28). A corrugated EGR line (50) provides cooling of the EGR gases.
Inventors:
GOREL ALEXANDER
CALABRESE JOHN LAWRENCE
CALABRESE JOHN LAWRENCE
Application Number:
PCT/US2001/015755
Publication Date:
March 28, 2002
Filing Date:
May 16, 2001
Export Citation:
Assignee:
ENGELHARD CORP (US)
International Classes:
F01N3/022; F02B29/04; F02B37/00; F02M25/07; F02B3/06; (IPC1-7): F02M25/07; F02M29/04
Domestic Patent References:
| WO2000077353A2 | 2000-12-21 |
Foreign References:
| US6062026A | 2000-05-16 | |||
| US5927075A | 1999-07-27 | |||
| US4329162A | 1982-05-11 | |||
| US4147141A | 1979-04-03 | |||
| US3739553A | 1973-06-19 | |||
| DE19714308A1 | 1998-10-15 | |||
| US6035834A | 2000-03-14 |
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