Abstract: A combination fuel introduction, distribution and air shaping device is provided for a fuel carburetion system of an internal combustion engine. The distributor is elongated and of generally inverted tear-drop cross-section. Fuel discharge openings are spaced longitudinally near or at the bottom of the distributor. Spaced-apart teeth aligned with the fuel openings or other means to prevent liquid bridging and depend from the bottom or discharge side of the distributor. The distributor extends across the intake air duct of an air-fuel mixing and modulating device that is adapted to deliver a mixture of finely divided fuel droplets in air to the intake manifold of an internal combustion engine. The body of the distributor divides the intake air flow into two converging air streams which entrain the fuel as liquid droplets sweeping it from the downstream side of the distributor and uniformly distributing the droplets in the air streams.

Abstract: Apparatus for homogeneously intermixing flows of fuel and air to an internal combustion engine comprises a mixing chamber having a venturi portion across which is disposed an arcuate nozzle-matrix of converging nozzle cells which focus subflows toward pre-selected downstream crossflow mixing zones. A mainstream flow of air is introduced into the chamber upstream of the nozzle-matrix and one or more mainstream flows of fuel are introduced into the chamber upstream of the nozzle-matrix and/or into the crossflow mixing zones. The nozzle-matrix is adapted to accept at least portions of the main upstream flows to generate several optimum velocity subflows therefrom to enhance fuel and dispersion, atomization, and vaporization into the air.

Abstract: A downdraft type carburetor having essentially conventional idle speed and main fuel metering systems has a throttle body or plug movable within a fixed area venturi to provide sonic flow at idle and part throttle operations; the plug is slidably mounted on a fuel tube extension of a centrally located main fuel discharge snout, and discharges fuel into a high velocity constricted area or throat formed between the plug and fixed area venturi.

Abstract: A sonic flow, plug type carburetor has an annular fuel induction slot in the outer periphery of the plug connected to an air/fuel mixture supply in the plug, and fuel distribution means in the plug in the form of a vortex chamber located adjacent the slot and receiving liquid fuel therein to centrifuge the fuel outwardly towards the slot in a thin film uniformly around the annulus of the slot.

Abstract: A sonic flow, plug type carburetor has an annular fuel induction slot in the periphery of the plug connected to an air/fuel mixture supply in the plug, and fuel distribution means in the plug in the form of an air turbine located adjacent the slot and in a position to receive liquid fuel from the air/fuel mixture to centrifuge the fuel globules outwardly and thinly spread the fuel as a film uniformally around the annulus of the induction slot for a uniform entry into the air stream.

Abstract: An improved air-foam generating apparatus adapted for use beneath the water in a bath or wash basin, the apparatus including a diffuser plate of porous material having minute pores ranging from 0.013 mm to 0.48 mm, the diffuser plate comprising a sintered, fine-powdered aluminum oxide grain vitrified at a temperature of 1,300.degree. centigrade. The fine bubbles producing direct and indirect stimuli on the skin of a bather improving the general condition and improving blood circulation.

Abstract: A sonic flow-type carburetor having a variable area venturi defined by a conical air nozzle receiving axially within a movable matching conically-shaped plug to define a constricted annular variable area or zone between through which air flows at sonic velocity over a large portion of the operating range of the engine, the plug shape defining a diffuserless nozzle to locate the point of maximum flow velocity at the manifold edge of the plug for better atomization of the fuel and uniform distribution into the air stream for flow into the manifold, the plug having an annular fuel induction port opening into the zone and connected by conduit means to an induction-type fuel supply slot by an overlapping christmas tree-shaped slot, air also being variably supplied to the conduit means as a function of engine operation to vary the fuel induction signal and, therefore, the overall air/fuel ratio of the mixture flow to the engine.

Abstract: Flow regulating apparatus comprises a turbulent-flow valve with a fluid supply connected at the upstream side thereof. A fixed pressure bias is applied to the fluid upstream of the valve whereby the mass flow rate of fluid through the valve is directly proportional to the pressure differential across the apparatus when these variations are within a selected pressure range. Such flow regulation may be used in a system for introducing a metered amount of liquid fuel into an air stream to provide a combustible air-fuel mixture having a substantially constant air-to-fuel ratio. With this system air is passed through a constricted zone to increase its velocity to sonic, and the area of the constricted zone is varied in correlation with operating demands imposed upon the engine for which the mixture is produced.

Abstract: A combustible air-liquid fuel mixture having a substantially constant air-to-fuel ratio is produced for delivery to the intake manifold of an engine. Air is passed through a fluid flow device having a variable area throat zone to increase the velocity of the air to sonic, and the area of the throat zone is varied in correlation with operating demands imposed upon the engine for which the mixture is produced. Liquid fuel is metered from a supply into the air stream at or before the throat zone in direct proportion to the cross-sectional area of the throat zone. The pressure of the high velocity air stream is sensed at a point where it bears a predictable relationship to atmospheric pressure, and the rate of fuel delivered into the air stream is adjusted in response to changes in the air pressure sensed so that the air-to-fuel ratio of the mixture is maintained substantially constant.

Abstract: A fuel injection system for continuous injection of fuel into the induction tube of an internal combustion engine. The induction tube includes adjacent convergent and divergent regions. A throttling element, composed of two conical parts with adjoining bases forms a narrow, annular aperture in cooperation with the diverging region of the induction tube. The throttling element can slide along its axis and its position determines the setting of a control slide within a fuel metering valve assembly which relates the metered out fuel quantity to the air flow through the narrow annular aperture. A bellows mechanism and a lever limit the axial excursion of the throttle element so as to maintain a minimum vacuum in the induction tube. The system also includes a gas-pedal linked cam plate which sets the location of the fulcrum for the limiting lever.

Abstract: A carburetor has a small air passage connected to the main induction passage by a sonic flow orifice; the small passage being supplied with compressed air at all times at a pressure and volume maintaining sonic flow; a fuel supply line is connected to the orifice for a constant flow of fuel, the rate of flow being varied as a function both of throttle valve position and manifold vacuum level.

Abstract: A downdraft type carburetor having a conventional idle speed air/fuel mixture channel has an air/fuel mixing chamber that mixes the idle channel air/fuel mixture with idle bypass air from the main induction passage, the mixing chamber being connected to discharge into the induction passage below the throttle valve through a nozzle containing an orifice sized with respect to a larger orifice in the air bypass passage to provide a pressure differential creating sonic flow, the nozzle extending so that the sonic flow is followed by a shock wave, the turbulence created atomizing the fuel.

Abstract: A variable area venturi carburetor has a movable venturi wall with a fuel metering rod attached for cooperation with aligned main and auxiliary fuel jets located in an opening in the fixed venturi wall, a bypass passage connected between the jets siphoning or bleeding off fuel at closed throttle positions into a passage connected to the induction passage just below the closed position of the throttle valve, to prevent stalling of the engine by fuel flow into the main venturi at this time.