lean limitの例文

• Llc lean limit control
• Through adjusting the controlling fuel injection - - regulations of the two injection timings and proportions , an adequate air and fuel charge stratification was produced - we call it quasi - homogenous mixture and the lean burn was successfully realized in a product 4 - valve s . i . engine whose structures are n ' t changed at all . investigations show that twice electronic fuel injection can make the lean limit ( a / f ) increase by 1 . 5 - 2 units ; the fuel consumption and exhaust emissions are improved remarkably , in partial load , compared with the product 4 - valve s . i