| 摘要 |
A restrictor device (1) for restricting the flow of fuel into and out of a fuel tank (5) said fuel tank (5) having an ingress (3) for receiving fuel. The restrictor device (5) includes a closure member (35) that is arranged to move with respect to the ingress (3) from a first operational position wherein the ingress (3) is open to a second operational position wherein the ingress (3) is closed, and an actuator device (1b) for moving the closure member (35) to the open position in response to a user inserting a fuel pump nozzle into the fuel tank ingress (3). The closure member maybe constructed to float with the rising fuel level in the fuel tank, a collar (13) may be provided, which may include a gauze or mesh to permit the passage of air but not liquid. A support element (19) may be provided, which may act as a filter for removing particulate contamination from the liquid fuel. The actuator device may be provided with biasing means such as a spring (29), for biasing the closure member into the closed position. |
