Abstract: A device for injecting fuel in combustion chambers, especially for self-igniting internal combustion engines, is proposed, in which a fuel injection nozzle, by aspirating air through an air guide device in the manner of a jet pump, generates a fuel spray that is surrounded by an air envelope. This air-enveloped fuel spray is directed through a heating element, the heat generation of which is distributed in such a manner over its length that a desired heating profile along the heating element is produced. The type of heating profile depends not only on the properties of the material making up the heating resistor but also on its structural makeup and its electrical bonding. A highly suitable material for the heating resistor is molybdenum silicide (MoSi.sub.2).

Abstract: A vehicle lamp unit having an improved supporting arrangement for the light source of the unit is disclosed. Also disclosed is an improved supporting arrangement for a light source having platform members that allow the light source to be attached to a base which is then inserted into complementary locating openings of a lamp unit in a vehicle. Further disclosed is a method of connecting the light source to the improved mounting arrangement.

Abstract: A device for reducing longitudinal dynamic instabilities of vehicles, in particular back and forth movements of cargo (load) and the uncontrolled periodic feeding of gas having, for the purpose of damping, a differentiation device (8) which differentiates an electric signal of the engine speed of rotation, preferably a voltage. The output signal of the differentiation device feeds a limiter-amplifier (9), the output signal of which, in its turn, intervenes in the deflection of a setting device (4) which acts on the fuel-air mixture of the engine. With this device, a deflection of the setting device takes place which counteracts periodic disturbing changes in speed of rotation while, upon an intended change in position of the setting device by the gas pedal, no perceptible additional effect is exerted on the setting member.

Abstract: A method for evaluating output signals of a sensor for measuring operational parameters of an internal combustion engine, utilizes characteristic wave forms of signal portions derived from a sensor. Threshold levels for setting the beginning and the end of an injection process are determined from threshold levels of an (n+m)th signal portion which are derived from a fraction of preceding nth signal. The device for carrying out this method includes a store for the peak value of the nth signal and a controlled discharging device which cooperates with a threshold switch and which is controlled by other parameters of the engine such as rotary speed.

Abstract: An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method is disclosed for controlling the air/fuel ratio of the air-fuel mixture supplied to the engine, by, when the voltage of the power supply to the heater has dropped below a first predetermined value and thereafter has remained below a second predetermined value higher than the first predetermined value for longer than a predetermined time period, controlling the air/fuel ratio according to engine operational parameters by an open loop form of control with no account being taken of the output signal of the oxygen sensor, and otherwise controlling the air/fuel ratio according to these engine operational parameters by a closed loop form of control taking into account the output signal of the oxygen sensor so as to obtain an optimum air/fuel ratio for the engine by a feedback control process.

Abstract: In a fuel feeding apparatus of the type in which a vibrating element is vibrated by an electro-mechanical transducer converting electrical oscillation into mechanical vibration, and fuel injected from a fuel feeding part is directed to impinge against and atomized by the vibrating element, the frequency of the electrical oscillation applied to the transducer is changed at a predetermined period to promote atomization of fuel.

Abstract: An internal combustion engine has an intake system provided with a valve for controlling the intake air flow in an idling operation. There is provided a control system including an engine speed detector and a control circuit which compares the engine speed signal from the engine speed detector with a reference value corresponding to a desired idling speed to produce a feedback signal for adjusting the valve. There is also provided an external load detector for producing a modifying signal when an external load is applied to the engine in the idling operation. The control system functions to interrupt the feedback control under the feedback signal for a predetermined time when the external load is applied or removed so as to stabilize the engine speed in a transient period.

Abstract: A method and system for controlling an amount of fuel supplied into an internal combustion engine.

Abstract: A breakerless ignition system includes a resonant circuit whose oscillation is controlled by the relative position between a detector coil 2a embodied therein and a magnetically permeable rotor 1 driven by the engine, and a threshold detector 3 responsive to the oscillation signal envelope for controlling the supply of energy to an ignition coil 6 via a power switching transistor 5. To prevent false triggering of the detector due to spurious signals induced in the coil by the spark ignition firings, a monostable multivibrator 8 actuated by the trailing edge of the detector output holds the transistor deenergized for a predetermined period of time after it has been turned off. The multivibrator output may resistively ground the resonant circuit, or it may disable the transistor via an inverter 11 and AND gate 12.

Abstract: An ignition apparatus for an internal combustion engine causes the desired ignition advance characteristic of the engine by controlling an ignition advance in accordance with the status of the engine, for example, a temperature or a vacuum in a manifold, in addition to the controlling the ignition advance in accordance with the rotational speed of the engine.

Abstract: A knock control apparatus equipped with an altitude compensation function is disclosed. The apparatus comprises a knock sensor fitted to an internal combustion engine and detecting the mechanical oscillation of the engine; a background signal detection circuit discriminating the background level signal of the knock signal from the output signal of the knock sensor; a comparator for comparing the output signal of the knock sensor with the background signal and detecting knock and the intensity of knock; and a knock control circuit sequentially advancing the ignition timing of the internal combustion engine towards the maximum advance angle position and retarding the ignition timing in accordance with the occurrence of knock and its intensity so as to control and optimize the ignition timing of the engine.

Abstract: There is provided an engine ignition device which generates a high voltage in the secondary windings of the ignition coil through switching on and off of the electric current flowing in the primary windings by means of an ignition circuit. The generated high voltage is impressed on the ignition plugs to initiate ignition, and, at the same time, the high voltage is boosted by a DC-DC converter connected to the secondary windings and is supplied continuously to the ignition plugs, to prolong the discharge duration. There is further provided a DC-DC converter controlling circuit to control the DC-DC converter to initiate ignition synchronous with the ignition signal output and also to reduce the operating time of the DC-DC converter as the engine increases its speed.

Abstract: An air/fuel ratio feedback control system for an internal combustion engine of a vehicle includes means for determining an air/fuel ratio on the basis of an output signal of an oxygen sensor, an auxiliary supply passage for supplying the secondary air or fuel to the engine, a control valve for controlling the amount of the air or fuel flowing through the auxiliary passage, a control means for controlling the opening degree of the control valve in accordance with the determined state of the air/fuel ratio, means for detecting an operational state of the engine or the vehicle in which the feedback control of the air/fuel ratio is to be stopped and producing a detection signal, and means for maintaining the opening degree of the control valve at a middle level upon presence of the detection signal, whereby preventing the generation of over rich mixture during a transient period after the feedback control of the air/fuel ratio is restarted.

Abstract: An improved ignition apparatus for an internal combustion engine includes at least an ignition coil and a first electrode assembly and a second electrode assembly, each thereof including an electrode, and each of the electrodes of the first and second electrode assemblies is electrically connected to one end of a secondary winding of an ignition coil. The electrodes are supported on a cylinder head of the engine being electrically insulated therefrom and they form a spark gap for producing spark discharge therebetween, and a high tension circuit connecting the electrodes to the secondary winding of the ignition coil is electrically insulated from the body of the engine. The ignition apparatus having the above-described construction has the functional effects of improving the ignition performance, simplifying the withstant voltage design of constituent components, improving the antifouling performance at a spark gap portion and increasing the radio frequency interference suppression performance.

Abstract: Projecting parts of the piston and the cylinder head are formed in such a manner that two portions of the piston surface are spaced from the inner surface of the cylinder head and a third portion of the piston surface is next to the inner surface of the cylinder head when the piston is at the upper dead center point, said third portion of the surface comprising a zone which is at a distance from the inner surface of the cylinder head and forming a connecting surface between said two first portion, these latter forming, with the cylinder head, respectively, an initial combustion zone and an expansion zone for the gases originating from the combustion, while the connecting zone together with the cylinder head forms an opening for the passage of said gases from the first zone, guiding these latter along the cylinder head toward a wall of the expansion zone, the outline of which, in a plane containing the axis of the above-mentioned opening, is a line which is curved in the direction of the opening forming the me

Abstract: The present invention consists in apparatus for the uniform distribution of fuel to a multi-cylinder spark ignition engine comprising a fuel metering device arranged to deliver discrete metered quantities of fuel in accordance with the requirments of the cylinders of the engine, means defining a catchment chamber arranged to receive each such quantity, a plurality of passages extending from said chamber, one for each cylinder of the engine, each said passage being connected through a conduit to the induction passage of one cylinder, means for admitting gas under pressure to said passages to expel each quantity of fuel from the chamber and means for directing the flow of gas from said chamber along each of said passages in turn whereby a metered quantity of fuel is delivered to each cylinder in turn.

Abstract: A durable and adjustable lighting luminaire is provided that will allow the orientation of the projected light to be adjusted. The luminaire housing forms a saddle with a first leg and a second leg. A lamp socket is located in said first leg. A reflector-lens combination is rotatably positioned between the first and second legs and rotatably mounted over the lamp socket. The lamp and lamp socket extend into the reflector-lens combination. The ballast housing, ballast cover, reflector and lens are all constructed of polymeric material and connected together by snap or pressure fits and ultrasonic welding. The resulting luminaire is corrosion, impact, weather and vandal resistant.

Abstract: A combination switch, lamp, and connector assembly for illuminating a glove box compartment includes an insulator having an integral socket portion and an integral connector body portion, a pair of unitary contacts on the insulator extending between the socket and connector body portion, a bulb with a wedge base inserted between bifurcations on the contacts at the socket portion whereby contact is made with the bulb's filament ends and the bulb is held in the insulator, a pair of terminals inserted in the connector body portion from the side of the housing opposite the contacts and engaging leg portions of the contacts to establish electrical continuity, a plunger mounted on the insulator for linear movement from an extended to a depressed position when the glove box door is closed, and a cam on the plunger engageable on a leg portion of one of the contacts to separate that leg portion from the corresponding terminal in the depressed position of the plunger and thereby terminate compartment illumination when

Abstract: A lamp assembly having an adjustment mechanism that connects a lamp unit to a support housing and includes a pair of bosses integral with the opposite sides of the headlamp unit and provided with screw means which cooperate with a pair of nuts that are mounted in a support plate for movement when the screw means are loosened and the lamp unit is manually adjusted about a horizontal axis. When the screw means are tightened, frictional engagement between the nuts and the support plate occurs so that the lamp unit is then maintained in the desired adjusted position.

Abstract: Improved magnetic pulse timer components provide increased timer voltages with steeper bipolar waveforms. Such improvements are residual in terms of a permanently magnetized timer rotor (30, 40, 60, 70, 80). Rotors (30, 40, 60) have regularly spaced protrusions at the rotor's outer periphery and are permanently magnetized. Rotors (70, 80) have regularly spaced slots in their outer peripheries and may also be permanently magnetized. Such slotted rotors provide the capability of high level and steep bipolar voltage waveforms. Additional magnetic flux switching capability in the timer may be provided by utilizing a permanently magnetized component mounting base plate (90, 100, 110).