MINIMIZATION OF INVERSE INLET FLOW AND CONSEQUENT REDUCTION IN SPECIFIC FUEL CONSUMPTION IN GASOLINE ENGINES
In this paper possible causes of inverse inlet flow observed in one-to four-cylinder gasoline engines are discussed. One possible cause is the angle between crank throws. This was checked experimentally on a four-cylinder engine operated as a two-cylinder and was found to have little effect. Inlet manifold resonance was then postulated as the most probable cause. Accordingly, an inlet manifold resonance analysis was made for a two-cylinder engine. As a result of this analysis changes were made in the inlet manifold. These changes, plus changes in the venturi, substantially reduced the visible inverse flow as well as reducing the brake specific fuel consumption from 265 grams/psh to 216 grams/psh at 3000 rpm. In addition, better balance of load between the two cylinders was observed.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- International Off-Highway and Powerplant Congress and Exposition, Milwaukee, Wisconsin, September 10-13, 1984.
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Corporate Authors:
Society of Automotive Engineers (SAE)
400 Commonwealth Drive
Warrendale, PA United States 15096 -
Authors:
- Zhou, L
- Yao, C
- Yang, Z
- Publication Date: 1984
Media Info
- Features: Figures; References; Tables;
- Pagination: 10 p.
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Serial:
- SAE Technical Paper
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: Culvert inlets; Fuel consumption; Gasoline engines; Manifolds; Resonance
- Uncontrolled Terms: Inlets
- Old TRIS Terms: Reverse flow
- Subject Areas: Energy; Safety and Human Factors;
Filing Info
- Accession Number: 00395748
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: SAE 841093, HS-038 272
- Files: HSL, USDOT
- Created Date: Jun 30 1985 12:00AM