Fluid flow control valve and actuator

摘要

A fluid flow control valve is housed within a canister (31) which is semi-permanently fixed in the wall (12) of a fuel tank, and has pipe connections (17, 18). The movable valve parts, including a valve sub-assembly (32, 33) and an electrical actuator (34), may be removed without requiring access to the fuel tank.

主权项

1. A valve assembly comprising:
a blind canister defining an insertion axis passing centrally through the internal volume and open end thereof; a blind valve housing slidable into said canister on said axis and defining an open mouth and a circular chamber about said axis; a valve member insertable through said mouth and pivotable in said chamber; an actuator insertable through said mouth for operational engagement with said valve member, and a closure plate assembly configured as a barrier between the valve member and the actuator, the closure plate assembly comprising closure plate, a bearing and a drive pin configured to engage the actuator and the valve member to provide the operational engagement between the valve member and the actuator, wherein the drive pin is supported by the bearing to permit the drive pin to pivot relative to the closure plate, and wherein the closure plate assembly provides a wet-dry interface between the actuator and the valve member to permit disengagement of the actuator from the drive pin without leakage of fluid from the valve housing chamber; and said canister and housing define aligned inlet and outlet ports, and said valve member includes a through passage configured to allow connection of said inlet and outlet ports in one orientation thereof, and configured to obstruct connection of said inlet and outlet ports in another orientation thereof.