Main Title |
An evaluation of three-way control single and dual bed catalysts as applied to heavy-duty gasoline engines / |
Author |
Nugent, Thomas.
|
CORP Author |
Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch. |
Publisher |
U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch, |
Year Published |
1981 |
Report Number |
EPA-AA-SDSB-81-4 |
Stock Number |
PB81-224982 |
OCLC Number |
720026869 |
Subjects |
Motor vehicles--Pollution control devices--Testing ;
Automobiles--Catalytic converters--Testing ;
Trucks--Motors
|
Additional Subjects |
Truck engines ;
Gasoline engines ;
Catalytic converters ;
Exhaust emissions ;
Air pollution control equipment ;
Fuel consumption ;
Carburetors ;
Feedback control ;
Performance evaluation ;
Heavy duty vehicles ;
Heavy duty engines
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELBD ARCHIVE |
EPA AA-SDSB-81-4 |
|
AWBERC Library/Cincinnati,OH |
12/27/2023 |
ELCD |
EPA AA-SDSB-81-4 |
|
NVFEL Library/Ann Arbor, MI |
05/09/2011 |
DISPERSAL |
NTIS |
PB81-224982 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
[i], 28 pages : illustrations, charts ; 28 cm |
Abstract |
A test program to evaluate the applicability of three-way control (TWC) and dual-bed catalysts (TWC and Oxidation Catalysts) in combination with a closed-loop control stoichiometric (feedback) carburetor on a production 1978 IHC 404 CID heavy duty gasoline engine was conducted at EPA's Office of Mobile Source Air Pollution Control Laboratory. Testing was conducted according to the Federal test procedure for the heavy-duty transient cycle. The test program consisted of forty-six cold-start tests, fifty-eight confirmatory hot-start tests run to insure accuracy and precision of the cold-start tests, and fourteen hot-start tests run to identify the effects of air/fuel ratio control points on NOx emissions. The effects of various combinations of catalysts, EGR, air/fuel ratio control points, carburetor response times and air pump capacity on emissions, fuel economy and engine power were examined. |
Notes |
Includes bibliographical references (page 23). Technical report. "EPA-AA-SDSB-81-4." Cover title. "April 1981." |
Place Published |
Ann Arbor, Mich. |
Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Air, Noise, and Radiation. Office of Mobile Source Air Pollution Control. Emission Control Technology Division. Standards Development and Support Branch. |
NTIS Title Notes |
Technical rept.. |
PUB Date Free Form |
1981 |
Category Codes |
21G; 13F; 81J; 85H; 68B |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
200/05 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
OCLC/T |
Control Number |
323801105 |
OCLC Time Stamp |
20231221213018 |
Language |
eng |
Origin |
OCLC |
Type |
MERGE |
OCLC Rec Leader |
02305cam 2200433 a 45010 |