1974-02-01

Texaco's Stratified Charge Engine - Multifuel Efficient, Clean, and Practical 740563

ABSTRACT

This paper reports on the continuing development of Texaco's stratified charge engine combustion concept, the Texaco Controlled-Combustion System. TCCS conversions of the military L-141 engine have demonstrated inherently low exhaust emissions, multifuel capability, and improved fuel economy over the carburetted L-141 gasoline engine.

Under contract to the U.S. Army Tank-Automotive Command, promulgated federal gaseous exhaust emissions standards were met in a naturally aspirated TCCS engine-powered M-151 vehicle equipped with EGR- and Texaco-developed exhaust catalysts. These low emissions were sustained for 50,000 miles (80,400 km) with moderate maintenance. The effects of different degrees of emission control and of multifuel operation on performance and fuel economy were characterized using a turbocharged L-141 TCCS engine-powered M-151 vehicle.

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