Abstract:
A fuel system for an internal combustion engine and comprising a housing having a first chamber of cylindrical cross-sectional configuration with an upper air inlet port open to an air door and a lower outlet port connected to the engine intake manifold, a cylindrical spool rotatably positioned in the first chamber and having opposed openings which align with the inlet and outlet ports when the spool is in a full open position, a second chamber provided in the housing open to the heat of the engine exhaust system and separated from the first chamber by a partition, a fuel heating envelope secured within the second chamber whereby the heat of the exhaust system surrounds the envelope for heating the interior thereof, a fuel jet extending into the fuel envelope for admitting a fuel thereto, a bleed air passageway provided in the housing for directing air from the exterior thereof to the interior of the fuel envelope, a fuel nozzle secured through the wall and having one end open to the interior of the fuel heating envelope and the opposite end open to the interior of the spool for providing a fuel outlet opening in the spool between the inlet and outlet ports, a potentiometer to provide an analog voltage responsive to the position of the spool, a potentiometer to provide an analog voltage responsive to the rate of flow of the air through the housing, a probe to provide an analog signal responsive to the temperature of the fuel, a fluid injector valve in series with the source of fuel and the housing fuel inlet, and a circuit for converting the spool position, air flow, and temperature signals to an analog fuel demand signal and converting such analog fuel demand signal into a pulse DC signal for controlling the fuel injector valve.
Abstract:
A fuel atomizing carburetion system incorporating means for fuel atomization and flash vaporization in a heated evaporation chamber, separated from the main air induction system, and means for transferring the fuel vapor into a cyclonic flow inductor in which a mixing process with the cold inlet air occurs, for the purpose of generating a well-homogenized combustible mixture of completely vaporized fuel, inlet air, and recycled exhaust gas, with a minimal temperature rise of the mixture, in order to avoid the consequent increase of nitric oxide formation during the engine combustion process. A fuel atomizing carburetion system incorporating a pneumatic control system for the continuous control of the air-fuel ratio, exhaust gas recycling rate, and of the heat transfer rate to the atomized vaporizing fuel, in order to obtain an optimal reduction of engine exhaust emission and optimal engine performance.
Abstract:
A vapor fuel injection system including an air pump having dedicated air cylinders assigned to individual engine cylinders and adapted to produce timed charges of pre-heated air adapted to push timed charges of fuel through a heat exchanger where the timed charges of fuel are converted into metered charges of fuel vapor. The charges of fuel vapor are subsequently pushed into and through fuel vapor delivery nozzles defined in the respective guide bodies of respective intake valve assemblies. After exiting the guide body of said valve assemblies, the timed charges of fuel vapor mix with intake manifold air and then are fed directly into the engine cylinders for combustion.
Abstract:
An intake system for intercommunicating a carburetor and a combustion chamber of internal combustion engines which has a cylinder head, an intake port provided in the cylinder head, an intake valve located in the intake port and an exhaust manifold communicated with the combustion chamber. At least two intake passages are provided to join together at that part in the intake port which is immediately before the intake valve. One of the intake passages passes through the exhaust manifold, whereby the atomized fuel particles in an air-fuel mixture to be sucked in the combustion chamber can be positively vaporized without accompanying high temperature rising of the mixture.
Abstract:
An improved induction system for internal combustion engines comprising a relatively large capacity throttle controlled ambient air induction circuit and a relatively small capacity unthrottled air induction circuit for high-temperature air, the air induction balance between the circuits being variable to automatically and continuously regulate engine inlet air temperature between a maximum at idle and a minimum at full load, and means for admitting fuel to the inlet in such quantities that the fuel-air ratio approaches the lean limit of combustibility corresponding to the inlet air temperature provided at each throttle setting across a wide range of engine operating conditions. Both carburetion and fuel injection systems are disclosed.
Abstract:
The present invention provides a diesel engine and methods and apparatus for premixing diesel fuel and oxidant for combustion. The methods and apparatus may include a two stage vortex, each stage accommodating different flow rate ranges. The vortex pulverizes diesel fuel and optimally mixes the diesel fuel with an oxidant prior to introduction into a combustion chamber. The premixing results in more complete combustion and, consequently, fuel efficiency is increased and pollution is decreased.
Abstract:
The present invention relates to the engine-building industry and can find application in the fuel feed system of internal combustion engines for preconditioning part of the flow of a rich fuel-air mixture fed to the main flow to decompose liquid fuel and convert it into a gas. A technical aim of the present invention consists in an increased fuel economy of the engine, reduced toxicity of exhaust gases, and use of a cheaper low-octane fuel. A method for preparing fuel-air mixture consists in that the flow of an overrich fuel-air mixture is additionally heated, before mixing it with the other flow of fuel-air mixture, by passing it through a promoter heated above the mixture ignition temperature, thus providing repeated contact of the flow with the promoter surface. A device comprises a heat-exchanger 1 communicating, via an intake piping 3, with the engine exhaust manifold, a proportioner 5 of the components of the fuel-air mixture being handled provided with an air piping 6, an exhaust gas piping 7, and a fuel piping 8. The proportioner 5 communicates, via a control member 10 and a mixing nozzle 9, with the inlet mixture-handling loop of the heat-exchanger 1. A promoter 12 is provided in the heat-exchanger outlet nozzle, arranged in a spaceless relation thereto and being in fact a heating element having a well-developed surface and may be variously embodied.