Electromechanically controlled refueling valve
AssigneeBorg-Warner Automotive, Inc.
InventorTrevor L. Enge
Life of this patent
Estimating the term…
Abstract
An electronic onboard refueling vapor recovery (ORVR) system including an electrically operated ORVR valve that selectively opens and closes a fuel vapor path between a fuel tank and a collection canister. An electronic control circuit generates control signals to selectively open and close the ORVR valve. The electronic control circuit receives one or more inputs from one or a plurality of sensors and evaluates the one or more inputs to determine whether to activate the ORVR valve. The sensor inputs include at least a sensor indicating fuel is being introduced into the filler neck and may also include at least a sensor indicating a fuel level within the tank.
Claims6
An outboard refueling vapor recovery (ORVR) valve, comprising:
- an inlet port in communication with an interior of a fuel tank;
- an outlet port in communication with a purge canister;
- a valve disposed in the passage between the inlet port and the outlet ports, the valve selectively opening and closing the passage;
- and
- a solenoid for opening and closing the valve in accordance with at least one electrical signal, wherein a first electrical signal is generated in accordance with introduction of fuel into the fuel tank, wherein the valve is open during the introduction of fuel into the fuel tank if the tank not full, wherein a second electrical signal is generated in accordance with a fuel level in the fuel tank being in proximity to a full level, wherein the valve is closed when the fuel level in the tank is in proximity to a full level.
Dependencies are inferred from the claim text.