Chevrolet Touts Advanced Combustion in U.S. ‘Cruze’ Diesel Debut

摘要

General Motors announced July 31 that it will employ an advanced, variable-swirl air-intake system for a new 2.0-liter diesel engine in the Chevrolet “Cruze” diesel version debuting in the U.S. this year. “Variable swirl helps put the ‘clean’ in Cruze clean-turbo diesel,” GM assistant chief engineer Mike Siegrist said. “It increases the mixture-motion of air and fuel in lowspeed, low-load driving, like when you’re doing the commuter crawl to work every day,” Siegrist added. “It contributes to Cruze diesel’s great fuel economy, and helps give drivers the most torque for the least amount of fuel at the lowest emission and noise levels.” In Cruze’s variable-swirl intake manifold, each cylinder has two separate intake ports, with one of them controlled by a valve, according to GM.