Abstract: A speed regulator for fuel injection pumps of internal combustion engines includes an intermediate lever pivotable about a pin carried by a shaft which is coupled via a head to a fuel quantity adjustment member of a fuel injection pump. The pin is eccentrically disposed in a shaft which fits within a bushing disposed in the housing of the pump. The shaft is acted on by a speed signalling device with speed dependent force against the arbitrarily variable force of a main control spring. A speed signalling device acts on the intermediate lever. A one-armed drag lever, pivotable about the same axis defined by the pin, about which the intermediate lever pivots, may be provided. In this case, the drag lever is acted on by the main control spring, which otherwise acts directly on the intermediate lever. The shaft is guided in a bushing eccentrically inserted in the housing of the pump and is rotatable and arrestable from without.

Abstract: An electronic ignition control system including one coil assembly having a high number of turns to charge the associated capacitors to a desired level when the speed of the engine is low, and another coil assembly having a low number of turns to charge the capacitors to a desired level when the speed of the engine is high to thereby provide energy at a suitable level to fire the associated spark plugs. The system also includes means for regulating the voltage supplied by the alternator coils to a battery and thus preventing the battery from overcharging; and, means are provided for driving a tachometer proportionally to the firing pulses supplied to the spark plugs.

Abstract: A fuel-metering system adapted for attachment to an air-intake suction tube, having a throttle passage therein, of an internal combustion engine having an exhaust for waste gases, which system comprises:A. a fuel reservoir having an airspace above the fuel therein,B. structure for measuring the air pressures in the airspace and the suction tube and for metering fuel amounts to be introduced into given amounts of air flowing through the suction tube, in dependence on the air pressures, andC.

Abstract: A contactless ignition system includes a free running oscillator which generates an output timing pulse to a pulse generator and an ignition coil whenever the oscillations of a saturable core transformer and a series resonant circuit which is driven by the feedback voltage induced in the transformer secondary winding cease. In the free running state, the feedback voltage sustains the oscillator operation at a frequency fixed by the resonant circuit. A disk, having a plurality of permanent magnets evenly spaced around its periphery, is affixed to the distributor shaft and disposed within the vicinity of the saturable core of the transformer. As the disk rotates, the magnetic field of each magnet, as it passes the vicinity of the core, momentarily saturates the transformer core. Saturation of the core reduces the feedback voltage below the oscillation sustaining level and, consequently, causes the oscillator to generate an output pulse which is synchronous with the engine speed.

Abstract: Two series of phase displaced leading and trailing electrical signal wave forms of a potential level proportional to engine speed are generated in timed relationship with the engine and an absolute pressure transducer produces an engine manifold absolute pressure electrical signal of a potential level proportional to engine manifold absolute pressure. The engine manifold absolute pressure signal and the leading and trailing electrical wave form series are compared by respective comparator circuits. While the potential level of each of the leading electrical signal wave forms is equal to or greater than that of the engine manifold absolute pressure signal, the corresponding comparator circuit produces an output ignition dwell signal and when the potential level of each of the trailing electrical signal wave forms has increased to that of the engine manifold absolute pressure signal, the corresponding comparator circuit produces an output ignition signal.

Abstract: Computer means for sequential fuel injection including coupling means for applying manifold pressure and speed signals to control fuel injection time in accordance with the product of the signals, at least one of the coupling means including conditioning means having a predetermined non-linear characteristic. In one embodiment, conditioning means having non-linear characteristics are included in both the pressure and speed signal coupling means and each comprises operational amplifier and diode blocking means operative to provide two break point, three slope characteristics. In another, the conditioning means is included in the pressure signal coupling means and a biasing circuit responds to the speed signal to bias the fuel injection time.

Abstract: There is disclosed an electrical pulse generator for generating a train of high voltage pulses for spark ignition of multi-chamber, internal combustion engines operated at high speeds. The pulse generator comprises rotatable means mounted on the output shaft of the engine, typically on the dampener of the engine with cooperative pulse generating means carried on the engine housing adjacent the output shaft and responsive to the rotation thereof to generate the train of voltage pulses. In its preferred embodiment the pulse generating means comprises a coil winding which is mounted on a bracket secured to the engine with magnetic field generating means, such as a permanent magnet, to establish a magnetic circuit through the interior of the coil and magnetic flux means carried by the rotatable means mounted on the output shaft of the engine to generate a timed change in the magnetic flux of the magnetic circuit, thereby generating a train of induced voltage pulses in the coil windings.

Abstract: An rpm regulator of a fuel injection pump for internal combustion engine includes a single-arm drag lever and an intermediate lever which are bent to define a space into which a compression spring extends. The stroke of the compression spring is limited in both directions by stops defined by the intermediate lever and the drag lever, respectively. The regulator also includes a control spring arrangement which engages one end of the drag lever, a fuel quantity setting member which engages one end of the intermediate lever and controls due to its movement the quantity of fuel delivered by the fuel pump and an rpm governor which exerts an rpm defendent force against the intermediate lever in opposition to the force of the control spring arrangement. With this regulator the pump can deliver an excess fuel quantity for starting purposes and an automatically reduced normal fuel injection quantity when the rpm increases. This result is accomplished without increasing the dimensions of the fuel pump.

Abstract: A first and a second series of phase displaced leading and trailing electrical signal wave forms of a potential level proportional to engine speed are generated in timed relationship with the engine, the potential level of the first series being greater than that of the second series over the engine speed range, and an absolute pressure transducer produces an engine manifold absolute pressure electrical signal of a potential level proportonal to engine manifold absolute pressure. The engine manifold absolute pressure signal and the leading and trailing electrical wave form series are compared by respective comparator circuits.

Abstract: A fuel injection pump for an internal combustion engine has a pump assembly comprising a piston and cylinder and a structure defining a delivery passage through which fuel is delivered, during an active portion of a delivery stroke of the piston, from the cylinder to a linking passage connected to an injector. The structure also defines a return flow passage for the fuel between the linking passage and the cylinder. A normally closed delivery valve positioned in the delivery passage in alignment with the cylinder is responsive to pressure in the delivery passage to open during the active portion of the delivery stroke of the piston to allow fuel to be delivered to the linking passage.

Abstract: An ignition distributor for an internal combustion engine has a drive shaft adapted to be driven in accordance with engine speed, a pulse generating rotor coaxial with said shaft and adapted to be angularly adjustable relative thereto, and a single flyweight adapted for rotation in accordance with the speed of rotation of said drive shaft and operatively connected to said rotor for angularly adjusting said rotor generally in accordance with the speed of rotation of said drive shaft.

Abstract: In an ignition system in which the spark coil is wound right on the magneto armature and the spark is produced by electronic interruption of a short circuit across the primary winding, the first of a succession of rectified half waves applied to the electronic circuit unit has its amplitude reduced either by insertion of a circuit component in one half wave path of the rectifier to provide damping, or by the configuration of the armature core, or both. The magneto rotor has a U-shaped permanent magnet, the pole faces on the end of the legs of which are rotated past opposed pole faces of the armature core, which has the desired effect if the latter is of asymmetric U-shape or of symmetrical E-shape.

Abstract: A single-transformer high-frequency continuous-wave ignition system for an internal combustion engine. It employs a solid-state oscillator with a control winding for starting and stopping the oscillator, as timed by the engine. There is a D.C. bias current applied to the control winding. Cutting off the D.C. current ensures instantaneous starting of the oscillator, and an A.C. short circuit ensures stopping thereof.

Abstract: To prevent spurious responses of a semiconductor switching element used in triggered magneto-type semiconductor ignition-switching systems, primarily due to noise signals introduced by the magneto, the control circuit for the ignition system includes a common, parallel connected R/C compensation circuit, connected through decoupling diodes to the ignition trigger pulse sources for the respective cylinders and the grounded main terminal of the switching element to supply a compensating voltage which suppresses noise voltages which increases with increasing speed of the internal combustion engine and thus dynamically compensates for generated noise pulses.

Abstract: Various engine operating conditions are detected by a number of strategically located sensors which convert physically measurable quantities into proportional electrical signals. Such signals are firstly converted into analog signals representative of rectilinearly approximated relation between the input measurable quantities and the amount of fuel necessary for any given engine cycle and secondly converted into a series of command pulses by an exponential converter so that the width of the pulse closely indicates the ideal curvilinear relation between the input quantities and the required fuel quantity.

Abstract: In an internal combustion engine, large droplets of heavy fuel are injected in the combustion chamber in the presence of excess air and preferably under low pressure. The mixture of excess air and droplets of fuel is compressed and thereby forced to pass at high velocity through a vortex throat (i.e. small orifice) into an ignition chamber, where the friction between droplets and air causes self-ignition of the surface layers of the droplets. The combustion gases force the burning droplets, through the vortex throat, back into the combustion chamber under high velocity, thereby the burning surfaces of the droplets continuously come in contact with fresh supplies of air, until they burn substantially completely.

Abstract: A pressure regulator of the liquefied-gas fuel system for internal combustion engines has two cooperative diaphragms which partition the space inside the regulator body into three separate chambers. The diaphragms are operatively connected by a spring disposed therebetween, the first one defining two of the three chambers, namely a pressure-regulating chamber and a back-pressure chamber, and the second one defining the back-pressure chamber and a suction-pressure chamber. In the pressure-regulating chamber is installed a valve whose opening is controlled by the first diaphragm to control the supply of the liquefied-gas fuel. The second diaphragm is moved according to the intake-manifold vacuum, and the first diaphragm is correspondingly moved to control the valve, thus regulating the pressure of the fuel in the pressure-regulating chamber.

Abstract: There is provided an ignition system in which a light path is arranged so that the light output of a light emitting element is received by a photoelectric element, and this light path is made and broken intermittently to generate ignition signals. A plurality of weights or rockers are provided to intercept the passage of light in the light path. The weights are moved outward and inward by the centrifugal force which varies in accordance with the engine speed, and in this way the time interval during which the light is intercepted is varied. The duration of the light intercepting period is varied so that the dwell angle is increased as the engine speed increases. Consequently, even at the high engine speeds, the primary current in the ignition coil is not easily decreased thus preventing the decrease in the secondary voltage, and moreover the function of a centrifugal spark advance mechanism can be concurrently performed.

Abstract: An improved method for rapidly drying wigs comprises circulating air through the wig material in the presence of microwave heating. The microwave source is cycled with a cycle time of from about 1/2 second to 15 seconds on, followed by an interval of about 1/2 to 30 seconds off. An apparatus for practicing this technique comprises a microwave oven adapted with means for forced circulation of air, optionally heated, through the wig, and means for exhausting circulated air from the oven.

Abstract: An ignition spark advance system is disclosed which includes pulse generating means responsive to rotation of the shaft of an internal combustion engine for generating a first train of pulses including a first reference pulse and a plurality of additional pulses and a second train of pulses indicative of the angular position of the shaft of the engine. Timing means are provided for measuring the passage of a predetermined fixed time period after the occurrence of the first reference pulse in the first train of pulses.