Rheinmetall CWA series coolant pumpsRheinmetall says it is supplying its CWA series coolant pumps for plug-in electric hybrid vehicles (PHEV). The company says these pumps can be used for a variety of functions, from cooling the charge air on turbochargers and the main coolant circuit on I.C.engines, to cooling or temperature-control of electric drivelines, batteries, DC-DC converters and power electronics.