USE OF L-P GAS ENGINES TO REDUCE AIR POLLUTION
THIS PAPER WILL BRIEFLY COVER (1) THE DIFFERENCES IN DESIGN BETWEEN AN LP-GAS AND GASOLINE ENGINE, (2) THE CHARACTERISTICS OF LP-GAS ENGINE FUEL, AND (3) POWER, ECONOMY AND EXHAUST EMISSIONS FROM LP-GAS ENGINES. LP-GAS IS STORED AS A LIQUID AND METERED AS A GAS, THEREBY COMBINING THE ADVANTAGES OF BOTH LIQUID AND GASEOUS FUELS. BECAUSE IT IS A LIGHT PARAFFINIC GAS AT THE CARBURETOR, IT CAN BE METERED TO GIVE VERY LEAN MIXTURES WHICH ARE DESIRABLE FOR GOOD THERMAL EFFICIENCY AND LOW EXHAUST EMISSIONS. THE EXHAUST HYDROCARBONS HAVE A VERY LOW TENDENCY TO REACT WITH OXIDES OF NITROGEN TO FORM SMOG. NO ADDITIVES (OTHER THAN AN ODORANT) ARE USED. COMBUSTION DOES NOT RESULT IN PARTICULATE FORMATION BECAUSE PARAFFINIC FUELS BURN WITH ESSENTIALLY NO SOOT FORMATION. INSTANT WARM-UP IS OBTAINED WITH GASEOUS FUEL. LP-GAS IS COMPLETELY COMPATIBLE WITH THE ENGINE MODIFICATION, THERMAL REACTOR, AND CATALYTIC REACTOR EMISSION CONTROL SYSTEMS. BECAUSE OF THE TIGHTER COMPOSITIONAL CONTROL OF LP-GAS ENGINE FUEL AND THE FACT THAT IT CAN BE CARBURETED LEANER THAN GASOLINE, LESS PERFORMANCE LOSS IS INCURRED IN MEETING STRINGENT EMISSION CONTROL STANDARDS. A WELL DESIGNED LP-GAS VEHICLE WITH APPROPRIATE EMISSION CONTROLS CAN MEET THE 1975 AND 1967 PROPOSED STANDARDS /AUTHOR/
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Supplemental Notes:
- pp 18-31, 14 FIG
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Authors:
- BAXTER, M C
- Publication Date: 1971-5
Media Info
Subject/Index Terms
- TRT Terms: Air quality management; Engines; Exhaust gases; Liquefied petroleum gas; Pollutants
- Old TRIS Terms: Exhaust emission control; Lp-gas engines
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 00223686
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 18 1972 12:00AM