“Every season starts with zero points” noted Mercedes Team Principal Toto Wolff ahead of the launch of his team’s 2019 car, the W10. And with that being the case, Mercedes haven’t rested on their five-straight-title-winning laurels, with the Silver Arrows set to debut an all-new power unit on Lewis Hamilton and Valtteri Bottas’ cars this year.
While the power unit in last year’s W09 helped propel the team to their fifth double championship in as many years, the bods at Mercedes’ Brixworth engine base have been busy combing through the design of the unit for the W10 with a view to making it even stronger for 2019.
“We’ve made changes to the cooling architecture of the power unit,” said Andy Cowell, Mercedes’ Managing Director of Performance Powertrains, “which hopefully provide aerodynamic benefit on the car and also provide efficiency benefit on the power unit – so hopefully a win on both the chassis and on the power unit.
“Right at the heart of the power unit is the conversion of fuel into heat release in the combustion chamber and useful work out of the crankshaft. We have made steps on the combustion efficiency and on the [energy recovery system]. The marriage between the turbocharger assembly with the MGU-H, the inverter, the cells and the MGU-K: that whole system is now capable of operating more efficiently and helping with energy deployment through a race.”