Abstract: This invention relates to improvements in molten metal pumps for the transfer of principally molten aluminum and zinc from specialized molten and holding furnaces through fluidics control means downstream of the pump to control the direction of flow of molten metals at 1200.degree.-1600.degree. temperatures. The molten metal pump is characterized by both upper and lower dual volute pumps driven by the same shaft, each having separated intake filtering adjacent the top and bottom of the pump unit. Separated and extended molten metal intake permit molten metal flow from a submerged environment through restricted peripheral ingress slots both about the top and bottom and into both top and bottom independent voluted pump impellers. The invention permits direct use of the novel pump with aluminum metal, whose oxide impurities settle and/or zinc metal whose oxide particles float, in the molten state without pump modification.

Abstract: A fluidic sensor of objects comprising a body in which there are mounted an emitting nozzle connected to a feeding chamber connected to a feeding conduit, and an intake nozzle disposed in the area defined by the emitting nozzle and connected to an outlet conduit. Between the inlet conduit and the feeding chamber there is, shaped in the body, an additional chamber inside which there is a movable valve body with conical seats shaped on opposite ends, which is connected to a switching sensor movably mounted in the body. The switching sensor disconnects the flow of feeding energy when the object is outside a zone of detection and causes an acoustic signal if the object moves too close to the fluidic sensor. The acoustic signal can be used to cause a breakdown step.

Abstract: A flow outlet structure for an automotive air conditioner which is equipped with a louver having a plurality of movable slats and a fluidic element to cyclically change the direction of flow laterally of the automobile as long as the angle of the slats of the louver are below a predetermined angle. When the slats of the louver takes an angular position greater than the predetermined angle, the flow of cool air in three diversified directions is provided.

Abstract: A fluid outlet structure includes cavities formed in both inner sidewalls of the outlet having control fluid passages from which control fluid is jetted toward a center of the outlet to deflect fluid flowing through the outlet. According to the invention, the fluid outlet structure comprises one or more supplementary fluid control members including supplementary cavities having respective supplementary control fluid passages, and communicating pipes for communicating the cavities in the sidewalls and supplementary cavities of the supplementary fluid control members having the fluid passages opening in the same directions, thereby obtaining deflected fluid flows with great deflecting angles.

Abstract: A fluidic flow or pressure regulator which utilizes a linear and a non-lir resistance arranged in parallel supplying control passages to change the direction of a jet as a function of the pressure of an unregulated fluid source. An output means is provided which can supply fluid having pressure which is a desired function of the unregulated pressure, including a constant pressure. One embodiment forms the variable direction jet solely from the two control passages while another embodiment uses the control passages to change the direction of a power jet.

Abstract: A jet flow alternator for reversing the flow of a confined fluid stream which includes selectively controlled tubes to cause said stream to flow in either one of two directions under pressure.

Abstract: An improved liquid flow diversion arrangement for use with an additive dispensing system in an automatic washer. Included is a liquid flow diverter of the transverse pressure differential type having control ports coupled to atmosphere by tubes whose open ends terminate at the machine sequence control timer. Means are provided associated with the timer for closing the open ends of the tubes and thereby the control ports at predetermined times to effect liquid flow diversion. A check valve is provided at the outer end of each control port for preventing liquid from escaping from the fluid diverter. A chamber is coupled by a segment of the tubing between each control port and the timer for accumulating liquid that may bypass the check valves and further, for preventing audible sonic oscillations which may occur in the liquid flow diversion arrangements due to the inherent ability of the diverter to amplify resonance in the system.

Abstract: The converter includes a pressure fluid operated, bistable fluidic element, n the form of a fluid oscillator, having a pressure fluid supply inlet opening into an interaction chamber, two outlets extending downstream from the interaction chamber to the exterior and diverging in direction at an acute angle, two control inlets communicating with the interaction chamber, and a magnetic system actuated by electric input signals and influencing the control pressure in the control inlets to deviate the pressure fluid from one outlet to the other outlet. Respective feedback conduits are branched from the outlets to respective associated control inlets. Valve arrangements are selectively actuable by the magnetic system to close or open the feedback conduits. In one embodiment of the invention, a single valve is provided in the form of an armature of the magnetic system. In another embodiment of the invention, each control inlet has a respective valve therein in the form of an armature of the electromagnetic system.