Abstract: A fuel injection nozzle with heated valve for flash boiling of fuel during injection includes a nozzle body of electrical conductive material with a spring biased valve of electrical conductive material operatively positioned in an axial extending fuel passage within the nozzle body so as to control the flow of fuel out through a discharge outlet at one end of the nozzle body. An electrical insulator sleeve encircles and is fixed to the valve intermediate the ends thereof so as to support a coiled electrical heater wire that is connected at one end to the valve adjacent to its tip end and which is connected at its opposite end to an electrical conductor sleeve that is fixed to the insulator sleeve.

Abstract: A vapor fuel system for an internal combustion engine includes two vaporizing units for vaporizing liquid fuel and mixing it with air and a vapor heat exchanger for heating the fuel vapor-air mixture prior to its combustion in the engine. Hot fluid circulating in engine's cooling system flows through a jacket integrally surrounding each of the two vaporizing units and the vapor heat exchanger to provide a source of heat for vaporizing the fuel and heating the fuel vapor-air mixture. A fuel line carrying the liquid fuel to each of the vaporizing units passes through the hot fluid-filled jacket surrounding each of the units, thereby preheating the fuel before it is vaporized. In an alternate embodiment of the invention, two solenoid valves, one along the fuel line leading to each vaporizing unit, act in conjunction with a timing means to alternate periodically activation and deactivation of the vaporizing units.

Abstract: A fuel supply system for internal combustion engines which utilizes an electronically controlled injection device for liquid fuel which is delivered to a heating chamber in the throttle body of a carburetor and vaporized so that gaseous fuel is delivered to the engine. Vaporization of the fuel is achieved by electric resistance elements and metered exhaust gases directed to the throttle body.

Abstract: An engine fuel supply system for an internal combustion engine having an intake manifold, intake ports open to the intake manifold, an exhaust manifold and exhaust ports open to the exhaust manifold. The fuel supply system includes an enclosed heat exchange chamber heated by the exhaust gases from the exhaust manifold, a fuel vapor generator having a heat conductive fuel vaporizing conduit leading straight through the heat exchange chamber and the wall of the intake manifold to discharge fuel vaporized in the heat exchange chamber through a restricted orifice directly into the intake ports inside of the manifold.

Abstract: The invention relates to a fuel economizer preheating device operating by recovering energy from the fuel itself in the supply circuit of an engine, in particular but not exclusively a diesel engine. Part of the heat supplied to the fuel between the tank and the injectors is transferred by the excess fuel, not to the tank but upstream of the injection pump to the fuel arriving in this region.The device is characterized by the fact that it comprises a heat exchanger (10) removing heat absorbed by the fuel in the vicinity of the injection pump or upstream of the latter and transferring the heat to the fuel arriving upstream of the injection pump (4).Preferably, the exchanger (10) is located upstream of a filter (5) in the immediate vicinity of the latter.A branch pipe (11), possibly integrated in the exchanger (10) makes it possible to by-pass the exchanger, depending on the temperature of the fuel.

Abstract: An air charging system for an internal combustion engine is disclosed which includes an electric motor driven blower mounted on the air cleaner housing located at the air intake of either a carbureted or fuel injected engine. The blower forces either heated air during startup or unheated air during actual running to the engine to thereby boost the output power and reduce harmful emissions. The speed of the blower can be either manually controlled or controlled in conjunction with actuation of the engine's throttle.

Abstract: Apparatus for treating crankcase vapor emissions of internal combustion engines, particularly automotive engines, interposed between the engine crankcase, ventilation port and the air-fuel intake manifold. The apparatus, including a separator-collector housing with header-cover mounted thereon, is adapted to receive the crankcase emissions (including engine blow-by gases) through the header-cover and an elongated inlet conduit depending downwardly therefrom and to direct such emissions into a lower sludge collection chamber of the housing. A filter assembly is carried by the inlet conduit and spans the separator-collector housing intermediate the bottom of the housing and the header-cover thereby defining in the lower portion of the housing the sludge collection chamber and defining in the upper portion of the housing a recycle vapor chamber.

Abstract: A means of evenly distributing the air flow through the core of an intercooler across the total cooling surface of the core.

Abstract: A fuel system for an internal combustion engine of the piston type vaporizes liquid fuel such as gasoline and delivers the same through inter-communicating control valves, one of which is responsive in operation to inlet manifold pressure in the internal combustion engine and the other responsive in operation to accelerator linkage controlling the internal combusion engine's operation. The system's principal point of novelty is a hot fuel gas generator which combines a heat exchanger preferably electrically energized and a communicating valve which is responsive in operation to inlet manifold pressure. The system includes a device for delivering liquid fuel to the hot fuel gas generator and means establishing communication between the inlet manifold pressure responsive valve, the accelerator linkage actuated control valve, and an adaptor block mounted on the inlet manifold of the internal combustion engine.

Abstract: A fuel evaporator for an internal combustion engine, which is provided with a ceramic heater, is disclosed. The fuel evaporator comprises a plurality of layered thin PTC ceramic plates, each of which has a plurality of open holes, electrodes which are provided on an upper surface, an under surface and between adjacent ceramic plates, and an insulator for securing the outer periphery of the layered PTC ceramic plates to the wall defining an air-fuel passage of an engine. The ceramic plates are electrically connected to one another in parallel so that each ceramic plate is rapidly heated by consuming only a small amount of electric power.

Abstract: An attachment for a heat shield is intended to protect the face of the cylinder head comprising one of the walls of the combustion chamber of the cylinder of an internal combustion engine in which the transfer of gases is controlled by valves having seats inserted into the cylinder head. The inserted seats of the valves are provided with an annular rim which, when the seat is fitted into a bore in the cylinder head, presses against the wall of the cylinder head the heat shield. Application is to insulating the inner walls of a heat engine cylinder head or to creating hot points in the combustion chamber of the cylinder head.

Abstract: A method of reducing ignition delay, .tau., of fuels to negligible values and negligible differences is disclosed. Fuels conditioned to have such negligible values and differences are readily used in multiple fuel engines, such fuels self-ignite substantially instantaneously when injected into an oxidant, require substantially no heat transfer from the oxidant to effect the self-ignition, and the self-ignition is sufficient to sustain continued combustion.

Abstract: Fuel apparatus including a fuel vaporizing portion, an air conveying portion, a heating portion and a flow control portion; the fuel vaporizing portion including an enclosed chamber, the chamber including a liquid reservoir section and a vapor expansion section, the vapor expansion section including a plurality of baffles providing a tortuous path through the expansion section, a liquid fuel inlet to the chamber and a vapor outlet from the chamber, a first vapor conduit connecting the chamber outlet with a carburetor of an engine, a second vapor conduit connecting the engine carburetor with the chamber adjacent the vapor expansion section thereof; the air conveying portion including an air intake section, a divider for air flowing through the air intake section, a first duct for conveying one part of the air flow to a point adjacent the liquid reservoir section of the enclosed chamber, a second duct for conveying a second part of the air flow to the first vapor conduit; the heating portion being disposed adja

Abstract: A fuel evaporator to be installed between a carburetter and an intake manifold of an internal combustion engine for heating an air-fuel mixture flowing through an air-fuel passage of the carburetter is disclosed. The fuel evaporator comprises at least one ceramic heater formed of a circular PTC ceramic plate having honeycomb-shaped open passages, and at least one electrically conductive metallic plate having honeycomb-shaped open passages of which shape and arrangement are equal to those of the open passages of the PTC ceramic plate. The metallic plate is disposed on one surface or both surfaces of the ceramic heater so that the open passages of the metallic plate are coaxial with those of the ceramic heater. The ceramic heater and the metallic plate are disposed on a stepped portion formed in an insulator and the outer peripheral portion of the metallic plate is fixed to the insulator which is interposed between the carburetter and the intake manifold.

Abstract: A heat insulating mounting device for use with a carburetor of an internal combustion engine including a heat insulating casing formed of a heat insulating synthetic resinous material for enclosing the carburetor connected to a cylinder in a manner to isolate the carburetor from the heat of radiation of the engine, and a flexible air passageway of small thickness formed of a heat insulating high molecular compound of rubbery properties heat insulatingly communicating the carburetor with the cylinder.

Abstract: A control for carburetor-supplied induction systems for internal combustion engines. The engine includes a carburetor and a principal induction passage leading to an intake valve and thence to a combustion chamber. A principal throttle in the carburetor controls the supply of air/fuel mixture to the principal induction passage as a function of throttle setting and engine demand. This invention includes an auxiliary throttle valve in the principal induction passage between the principal throttle and the intake valve, and an auxiliary induction passage extending from a point in the principal induction passage between the two throttles to a point adjacent to the intake valve where its discharge will, when the intake valve is open, enter the combustion chamber in such a way as to cause swirl and/or turbulence. The auxiliary throttle is closed at light loads so that the bulk of the intake charge is delivered to the combustion chamber through the auxiliary induction passage.

Abstract: An intake system of an internal combustion engine including a power cylinder having an intake valve and a fuel injection nozzle, comprising: a throttle chamber upstream open to the atmosphere; primary and secondary throttle valves provided in parallel with each other in the throttle chamber; primary and secondary air passageways leading from the throttle chamber past the primary and secondary throttle valves, respectively, and conjoined together upstream of the intake valve, the secondary passageway being larger in cross sectional area than the primary air passageway and having a reservoir chamber portion larger in cross sectional area than the remaining portion of the secondary passageway; and air heating means provided in the primary air intake pipe and operative to preheat the air to be passed through the primary air intake pipe.

Abstract: The invention relates to an improved internal combustion engine having an air cooled or liquid cooled cylinder head and a piston of low thermal conductivity and low thermal expansion material and a uniform clearance between the cylinder liner and piston around the circumference, the cylinder liner being provided with fins for cooling by natural convection in order to avoid loss of heat from the combustion chamber to the coolant for increased efficiency of the engine.

Abstract: A heater (16) for heating diesel fuel in a fuel filter (15) to prevent jelling of the diesel fuel is disclosed. The heater (16) includes a receptacle (34) having an open top and an internal cavity (35). The fuel filter (15) is positioned in the internal cavity (35). A first O-ring (36) secured to the receptacle (34) sealingly engages the fuel filter (15) to close the open top. Conduit means connect the internal cavity (35) to a coolant system (31). The conduit means includes an inlet conduit (32) having a first end (32a) which may be connected to for fluid communication with the coolant system (31) and a second end (32b) secured to the receptacle (34) and in fluid communication with the internal cavity (35). The outlet conduit (33) has a first end (33a) which may be connected in fluid communication with the liquid coolant system (31) and a second end (33b) cooperatively connected to the receptacle (34) and in fluid communication with the internal cavity (35).

Abstract: A fuel economizer system for use with an internal combustion engine comprises an evaporation chamber into which gasoline is sprinkled, and in which evaporated gasoline is mixed with air; a two-way safety valve arrangement permitting the mixture to be drawn from the chamber to the intake manifold of the engine but preventing backfires from reaching the chamber; and a return fuel line for recycling the sprinkled gasoline by returning it from the chamber to the fuel tank. A portion of the return line in contact with the exhaust pipe picks up exhaust heat to energize the recycled fuel.