Abstract: A valve assembly is provided to control the flow of a fluid therethrough. The valve assembly includes a valve body and a pressure-regulating assembly. The valve body defines an inlet, an outlet, and a flow path extending therebetween. The pressure-regulating assembly includes a longitudinally extending piston tube, a venturi element, and a vent. The piston tube is shiftably mounted in the valve body and at least in part defines an outer chamber. The flow path extends through the piston tube. The venturi element is disposed in the flow path. The vent fluidly interconnects the flow path and the outer chamber such that a pressure drop associated with fluid flow through the venturi element draws fluid from the outer chamber through the vent and into the flow path.

Abstract: A valve assembly is provided to control the flow of a fluid therethrough. The valve assembly includes a valve body and a pressure-regulating assembly. The valve body defines an inlet, an outlet, and a flow path extending therebetween. The pressure-regulating assembly includes a longitudinally extending piston tube, a venturi element, and a vent. The piston tube is shiftably mounted in the valve body and at least in part defines an outer chamber. The flow path extends through the piston tube. The venturi element is disposed in the flow path. The vent fluidly interconnects the flow path and the outer chamber such that a pressure drop associated with fluid flow through the venturi element draws fluid from the outer chamber through the vent and into the flow path.

Abstract: A spa includes a housing forming a vessel, an opening formed in the vessel, a valve fluidly coupled to the opening, a liquid sensor configured to measure an amount of liquid in the vessel, and a controller operatively connected to the valve and the liquid sensor. The controller operates the valve to drain liquid the vessel through the opening, and operates the valve to fill the vessel with liquid from a liquid source when a predetermined amount of liquid has drained from the vessel.

Abstract: In a dual fuel injected internal combustion engine, the primary injected fuel is gasoline with a secondary fuel injected consisting of Ethanol, Methanol, a combination of Ethanol and Methanol or a mixture of either fuel with water. The method and device claimed is an electronic controller that monitors the flow rate and or effect of the secondary injected fuel though sensory input signals and outputs a control signal to an external device which will reduce the internal combustion engines power output to a safe level in the event that the flow of the secondary fuel injected is not within a predetermined specified range and or the effect of the secondary fuel injected is not within a predetermined range as detected by an automotive inlet air temperature sensor or automotive knock sensor there by preventing damage to the internal combustion engine from detonation or pre-ignition of the primary air fuel charge as a result of reduced quantity of secondary injected fuel.