INFLUENCES ON THE MECHANICAL RUNNING NOISE OF OTTO MOTORS AND EXHAUST GAS EMISSION
EINFLUESSE AUF DIE MECHANISCHE LAUFUNRUHE VON OTTOMOTOREN UND ABGASEMISSIONEN
Where the fuel mixture becomes increasingly leaner, the noise of the motor increases and low frequency rotational speed/rotational moment oscillations are more pronounced. The results of various studies in which the influence of constructional details of the motor, e.g. the main parameters, ignition timing, exhaust back pressure, various mix patterns, on the running speed was analysed, are reproduced in illustrations. This shows that it is possible the operate Otto motors at perceptibly higher speeds of rotation if (a) the mixture formation unit and the exhaust pipe shape similar fill quantities and similar air quantities can be obtained in all cylinders of if (b) a suitable turbulence producing unit may be used before each cylinder. (TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/05063167
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Corporate Authors:
VDI Nachrichten
Postfach 1139, Graf-Recke-Strasse 84
4 Dusseldorf 1, Germany -
Authors:
- LENZ, H P
- Akhlaghi, M
- Bamer, F
- Publication Date: 1978
Language
- German
Media Info
- Features: Figures; References;
- Pagination: p. 399-411
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Serial:
- Fortschrift-Berichte der VDI-Zeitschriften
- Issue Number: 31
- Publisher: VDI Nachrichten
- ISSN: 0506-3167
Subject/Index Terms
- TRT Terms: Charts; Construction; Exhaust gases; Exhaust pipes; Fuels; Ignition; Lean fuel mixtures; Mixtures; Motors; Rotation; Sound level; Speed; Tachometers; Vehicles
- Old TRIS Terms: Lean fuel engine
- ITRD Terms: 6486: Chart; 3655: Construction; 1384: Exhaust pipe; 3850: Fuel; 9047: Mixture; 1334: Motor; 1358: Rev counter; 1255: Vehicle
- Subject Areas: Construction; Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 00309478
- Record Type: Publication
- Source Agency: Bundesanstalt für Straßenwesen (BASt)
- Files: ITRD, TRIS
- Created Date: Jun 26 1980 12:00AM