eVaptive is Eaton’s electronically controlled fuel tank vapor venting system that can be optimized for any vehicle platform, eliminating the need to design unique venting systems for different vehicles.
eVaptive is an electronically controlled vapor venting system that transmits fuel vapors to a charcoal canister while keeping liquid fuel confined to the fuel tank. For any given fuel tank application, the system can be optimized for all driving situations as well as stationary and refueling modes. The hardware is a “one-size-fits-all” unit that can be programmed to fit any vehicle platform, eliminating the need for OEMs to design unique venting systems for different vehicles.
In a traditional fuel tank design, and according to OEM requirements, optimal vapor venting positions are determined in the vapor space at the top of the tank. Once these vent points are determined, Eaton’s eVaptive™ Electronic Venting System vent positions can be located there. Any liquid fuel that enters the vent tubes is routed to a central liquid trap, where it is pumped back into the fuel tank. Once vapor is routed to the charcoal canister for absorption.
The actuator system is controlled by a computer algoithm that controls the fuel level during refueling. It also is used to mitigate the spit-back that sometimes occurs when filing the tank to full volume.
Design flexibility
One set of hardware across vehicle lines and tank variants
Eliminates liquid carryover from the fuel tank utilizing:
Superior dynamic vent performance control
Tank / canister isolation
Pressurized tank management
Refueling control