Saturn S series Twin Cam cylinder head had now featured a new roller-rocker setup with hydraulic tappets and roller cams replacing the conventional bucket lifter setup of the previous engine in the S series. Also introduced for the 1999 model year S-series vehicles that were sold in California was a different type of an exhaust manifold that housed an upstream catalytic converter (this converter had heated up much faster than the conventional unit, and it had also decreased exhaust emissions faster as well), and it also had provisions for an air-injection reaction system (This had injected fresh air into the exhaust to reduce
Exhaust heat recovery system US highway cycle, the Rankine cycle system regenerated three times as much energy as the vehicle’s regenerative braking system. A French company, Exoès is specialized in designing and manufacturing exhaust heat recovery systems based on Rankine Cycles. The system EVE, Energy Via Exhaust, leads to fuel savings from 5 up to 15%. Barber-Nichols Inc. develops Rankine technologies for vehicles. The German consortium unites the majority of internal combustion engine manufacturers across the world. Two task forces are currently studying exhaust heat recovery systems on passenger cars. Renault Trucks: As a part of the All For Fuel Eco Initiative, Renault Trucks