As part of an emission system found in today’s automobile, sealed gas tanks utilize a fuel vapor recirculation system. This system pulls fumes out of the gas tank and stores them in a charcoal canister while the engine is not in use. Once the engine is started again, this system circulates the fumes back into the engine to be burned off.
An automotive company was looking for an efficient solution for opening and closing the valve that vented the fumes from the tank to the charcoal canister and then back into the engine as needed. TLX’s solenoid technology provided an excellent solution for this application.
The automotive company utilized this solenoid design to perform three necessary functions in the fuel vapor recirculation system. The first position allowed closure of the vent valve while fueling the car. The second position allowed vapors to be transmitted directly to the engine for consumption and the third position allowed vapors to be diverted to the charcoal canister for storage when the car engine was turned off.
The high push pull force of this compact solenoid design allowed for a fast response to each needed function while consuming no power to hold in each position. Utilizing our unique solenoid technology, TLX was able to manufacture a custom solenoid designed to meet this customer’s specific requirements for their application.