摘要:
A fully-integrated flow-control valve assembly for top-filled fuel tanks incorporates both a float valve assembly and a shut-off valve assembly in a single unit that screws into a threaded aperture in the top of the fuel tank. Whereas all other systems having similar function rely on an inlet valve and a level control/vent positioned apart from one another and intercoupled with a bleed line that runs either inside or outside the fuel tank, the device of the present invention directly mounts the two devices together and allows a simple installation. There is no need for a line that couples two remotely positioned units of the prior art flow-control assemblies.
摘要:
A non-pressurized fluid level shutoff system for a fuel tank includes a fuel receiver having a flow control valve that opens in a direction opposite a direction of fuel flow, and that cannot be manually overridden. A fuel sensor funnels fuel through a fuel jet outlet orifice to form a stream of fuel across a cutout section, and a supplemental peripheral port connected between an outlet orifice mixing chamber and the interior of the tank is oriented perpendicular to the stream of fuel across the cutout section, to interfere with the stream of fuel when the sensor is submerged in fuel in the tank, to further reduce any residual fluid flow signal when the sensor is fully submerged, allowing the flow control valve in the receiver to close completely.
摘要:
A system for separating a liquid and a gas including a separation vessel (30) with an inlet (28) for a gas/liquid mixture. Outlets (40, 42) for the fluids are disposed at different heights in the vessel. The outlets are controlled by turn-up vortex amplifiers (fluidic valves TuVAs) that include a supply port (40, 42), a control port (36, 38) and an outlet port (48, 50). The control port is supplied from the vessel at an intermediate level between the outlets, so that a change of flow in the control port alters resistence to flow through the valve.
摘要:
The accumulator comprises a vessel which is in communication with a hydraulic circuit and which contains a liquid occupying a portion of the space inside the vessel. The level of the liquid contained in the vessel is regulated by controlling the volume of gas overlying the liquid. The regulation apparatus essentially comprise a calibrated injector device for injecting gas under pressure into a first cavity, and a mechanically controlled gas bleeder device in a second cavity separated from the first cavity by a partition having at least one calibrated orifice situtated in a zone which is safe from being submerged in the liquid, and an opening situated in the liquid level control zone and extending on either side of the level of the interface between the liquid and the gas. The gas bleeder device responds to the pressure difference between the first and second cavities and has a flow section which varies as a function of the change in liquid level, with a low gas flow rate being permanently maintained to the outside.
摘要:
A device providing gas-powered logic responsive to a sensor such as a gas discharging type level probe and actuating valving controlling flow of liquid to be dispensed; and adapted to valving either for a volatile, especially cryogenic liquid utilizing the liquid's vapor pressure from a free gas space in a storage vessel top region as a power source both for control function and for the liquid transfer through a valve to a receiver, or with use of a separate gas supply for powering the probe, logic and amplifier, valving which applies liquid transferring pressure to a free gas space of a source vessel or vents the same for liquid transfer cut off, for volatile or non-volatile liquid.