Abstract: A fuel atomizing nozzle for use as a component part of a pressurized carburetor for an internal combustion engine in an automotive vehicle includes a housing forming part of the induction fluid passage through the carburetor, the housing having an inlet passage therein terminating at one end at an induction port, flow through which is controlled by a throttle-nozzle in the form of a poppet valve having a head and a stem, the stem being slidably received within a stepped valve guide bore in the housing, the guide bore having a stepped enlarged internal diameter adjacent to the induction passage to form, with the stem of the throttle-nozzle, a fuel discharge outlet, a fuel pressure regulator is associated with the housing to control fuel flow from a source of fuel under pressure to the fuel discharge outlet.

Abstract: A fuel induction system for a spark-ignited multicylinder internal combustion gasoline engine in which the primary barrel of the carburetor is connected to an inlet in the top of a container which is fitted through an opening in an exhaust gas conduit such that the lower portion of the container extends into the region of hot exhaust gas. An outlet in the top of the container connects to the engine intake manifold. The system gives improved air/fuel mixing and vaporization and improved cylinder-to-cylinder fuel distribution.

Abstract: Methods and apparatus for improving fuel vaporization in internal combustion engines in which a high temperature fluid, preferably the engine exhaust gas, is supplied to flow through an internal passage of heater means disposed in the air-fuel flow path of the engine to heat an external surface of the heater means and to radiate an optimum amount of heat into the fuel for vaporization of the fuel. The flow of the high temperature fluid is controlled to maintain the heat radiating surface of the heater means at a certain temperature which is preferably decreased as ambient temperature is increased.

Abstract: Laminar bearings having frusto-conical bearing surfaces of bonded thin solid film lubricant coatings that will carry dynamic stress loads of over one hundred thousand pounds per square inch for up to one million cycles or more.

Abstract: Peripheral areas of the combustion chambers of an internal combustion engine are provided with perforated walls bordering external collection volumes for receiving wall quench combustibles forced through the perforations from the combustion chambers. The combustibles are recirculated to the engine induction system through passages connecting with the collection volumes, valves being provided to time the flow to take place in portions of the expansion and exhaust steps of the engine cycle which maximize the collection of quench layer combustibles while avoiding excessive cylinder pressure and efficiency losses.

Abstract: An internal combustion engine is normally fueled from a primary source of natural gas. A pressure switch closes upon sensing engine vacuum. A second pressure switch closes at a predetermined low pressure in the primary natural gas source. The closing of these two switches opens a solenoid valve to admit gas from an alternate source to the engine. A check valve prevents gas from the alternate source from flowing towards the primary source. The engine's battery provides electrical energy for the solenoid and the battery is in circuit with the engine's ignition switch.

Abstract: A combustion engine with a carburetor and exhaust means is provided with an atmospheric air heater such as an exhaust stove. A metering valve supplies a variable mixture of heated air from the exhaust stove and cooler atmospheric air to the carburetor. The changing temperature and hence density of the air supplied to the carburetor produces a changing air-fuel ratio to the engine; and an oxygen sensor in the exhaust system generates a signal indicative of this ratio, which signal is applied through a feedback control system to actuation means for the metering valve to maintain the engine air-fuel ratio at a substantially constant predetermined level.

Abstract: The disclosure describes a floating bearing consisting of a plate, desirably rectangular but of other possible shapes and forms, which has an internal passageway system permitting air under pressure to be fed into the plate at one side thereof and to be discharged along the upper or lower faces of the plate, depending upon the side which is to be supported. The bearing plate or pad upon the side which carries the discharge openings for the air which insures the floating effect are desirably provided with a series of grooves or recesses in random or linear formation desirably in circular form, on the discharge face, which will engage the flowing air or fluid and tend to retain it for a longer period than a flat face.

Abstract: Herein disclosed is a new internal combustion engine which is operable on a fuel which is combusted with the agency of an oxidizing gas containing hydrogen peroxide or oxygen gas so that exhaust gases emitted from the engine contains no nitrogen oxides in the absence of the element nitrogen in the oxidizing gas. Where the hydrogen peroxide in particular is utilized, the hydrogen peroxide exothermically decomposes into a hot mixture of water and oxygen so that the fuel is combusted at a high temperature so that the exhaust gases are clear of not only the nitrogen oxides but unburned hydrocarbons and carbon monoxide. Since no air is used as the oxidizing gas for the fuel, the internal combustion engine is suitable for use in operations in those environments in which air is extremely thin although the engine can be successfully incorporated in various power driven vehicles.

Abstract: The disclosure illustrates a heat distribution passage for the intake manifold of an internal combustion engine having a burner type manifold air preheater. The preheater is positioned in an elongated intake manifold having spaced inlet ports which carry intake air to the cylinders of the engine. The preheater is adjacent some, but not all, of the inlet ports. The distribution passage extends from a point adjacent the preheater to an outlet at a remote engine intake port opening. When an engine intake valve is opened to pass air into a cylinder, the intake port has a momentary reduction in pressure. This reduction causes heated air to pass from the preheater through the passage and into the intake port where it is mixed with the nonheated intake air. Proper sizing of the tube in relation to the port area assures even distribution of heat between all of the intake ports.

Abstract: An engine intake manifold having a diaphragm opposed to an inlet of the riser of the manifold and means for applying a high frequency alternate electric voltage across the both sides of the diaphragm to induce mechanical vibration of the diaphragm.

Abstract: A safety device for an internal combustion engine with a liquid cooling system, in which the internal combustion engine is stopped by interruption of the fuel supply when the lubricating oil pressure drops below a minimum lubricating oil pressure corresponding to the prevailing load; the pressure of the cooling medium is thereby utilized as measuring magnitude for the load of the internal combustion engine.

Abstract: A metering and control system is described for supplying fuel to a burner nozzle of a burner assembly which preheats intake air in a diesel engine. Fuel for the control system is derived from the regulated pressure output of a fuel pump in the engine fuel supply system. The fuel metering and control system includes a series of parallel flow lines connected between the fuel pump and the burner nozzle. Each line has a metering orifice and check valve set to pass flow above a given pressure level. For intermediate rpm flow is through one line and at high rpm flow is through both. As a result, the fuel flow rate into the burner nozzle is directly proportional to engine rpm to provide a uniform nozzle preheat temperature over the full range of engine rpm. Suitable control inputs are provided to initiate or terminate flow to the burner in response to selected engine operating parameters.

Abstract: An internal combustion engine is provided with a vapor heat capsule that utilizes a vaporizable heat transfer fluid to conduct heat from the engine exhaust gases to a hot plate for heating the intake air-fuel mixture. The rate of heat transfer and temperature of the heated surface are controlled by selection of a heat transfer fluid, the volume of fluid used and design parameters of the heat capsule to obtain, upon vaporization of all the fluid within the capsule, a fluid boiling and condensing temperature of a predetermined value below the coking temperature of the fuel. The rate of heat flow through the capsule is varied automatically in response to the cooling effect on the hot plate of heating air-fuel mixture and vaporizing varying amounts of liquid fuel droplets.

Abstract: Herein disclosed is a flow control valve assembly for use in an exhaust gas recirculation system in which engine exhaust gases are recirculated from the exhaust system to the intake system of an internal combustion engine so as to clean the engine exhaust gases. The flow control valve assembly comprises a first valve interposed between its inlet and outlet ports for regulating its effective area for the exhaust gases. The first valve includes an orifice, a valve seat, a constant-pressure chamber defined inbetween, and a valve member movable between a seated position and an open position. The control valve assembly further comprises diaphragm means for acutating the valve member and including a diaphragm connected to the valve member, a diaphragm chamber having fluid communication with an air source under pressure, and an air bleed hole formed in the diaphragm.

Abstract: An internal combustion engine is disclosed having more efficient combustion to greatly reduce the exhaust emissions. The internal combustion engine comprises an air-cooled two cycle engine having a relatively longer piston stroke (approximately 6 inches) and a relatively slower operating speed (approximately 2,800 rpm) than present day internal combustion engines. The engine also includes a heat exchanger or a thermostatically controlled heating element for preheating and vaporizing the gasoline as it enters the combustion chambers. Air for the combustion chambers of the engine is also preheated by means of a fan which draws the air over the cooling fins on the engine block and forces the air heated by contact with the fins into an intake manifold. A heat exchanger is also provided to contain and heat a quantity of water until it turns to steam. The steam is then introduced into the air intake manifold to be introduced into the combustion chambers along with the air.

Abstract: What follows is a description of a fuel injection system for spark plug-ignited internal combustion engines with compression of the air-fuel mixture and structure for controlling the system pressure. The system is one which includes a device for regulating a fuel injection quantity operating in dependence on the air quantity streaming through a suction tube of the engine, a pressure regulator for determining normal system pressure, injection nozzles which have an opening pressure lower than the system pressure, a continuously delivering fuel pump, and the structure identified above. This structure adjusts the device for regulating the fuel injection quantity so that the starting pressure in the system is retained below the opening pressure of the injection nozzles and above the vapor pressure of the fuel until a quantity of fuel sufficient to replace the quantity of fuel evaporated or leaked due to a temperature gradient in the system resulting from engine cut off has been restored.

Abstract: An air intake duct assembly for an internal combustion engine air cleaner, the duct assembly including a duct having an ambient air inlet, a branch exhaust manifold heated air inlet and an air discharge outlet adapted to be coupled to an air cleaner. A flap valve is pivotally mounted within the duct, the flap valve being movable relative to the air inlet to proportion the flow of ambient and heated air through the duct. A spring means normally biases the flap valve toward an ambient air inlet closed position. A longitudinally expandable-contractible temperature responsive element is mounted in the air duct contiguous to the discharge outlet for sensing the temperature of air flowing therethrough.

Abstract: A vaporization promoting apparatus for an internal combustion engine is disclosed, in which at least one electrode is disposed in an intake manifold, and the electrode and the intake manifold are respectively connected to a high voltage generator which is provided for forming an intensive electric field in the interior of the intake manifold, thereby vaporization of a fuel injected into the intake manifold from a nozzle of a carburetor is promoted by the intensive electric field.

Abstract: A valve responsive to both venturi vacuum and intake manifold vacuum operates a recirculation valve by means of vacuum amplification.