Pneumatic Valve System F1

The earliest f1 hydraulics were open systems and thus the fluid was exposed to air which created issues with bubbles forming in the system from air absorbed by the fluid.
Pneumatic valve system f1. Pneumatic valve springs operate on a ring main system with the essential back up of a compressed gas cylinder pressure regulators one way valves and an oil scavenging system. Replacing steel springs with charged gas. How pneumatic valve systems work. The principle reduction in valve assembly mass is that of the upper one third of each valve spring.
F1 engines valve technology all f1 engines have used pneumatic valves for some time first introduced by renault on the late versions of the their v6 turbo engine. Even with the constant volume closed systems used now there can be problems with air dissolved in the fluid forming bubbles if the pressure drops to atmospheric. Pneumatic valve springs operate on a ring main system with the essential back up of a compressed gas cylinder pressure regulators one way valves and an oilscavenging system. The principle reduction in valve assembly mass is that of the upper one third of each valve spring.