Abstract: An electronic control system for an internal combustion engine comprising a controller having a fuel injection control section to control an injector of a fuel injection unit to supply fuel to the engine and an electric power source section to apply a driving power from a generator driven by the engine to the fuel injection unit and the controller, the controller having a first injection command generation section to generate an injection command when an output voltage of the generator reaches a set value whereby a first fuel injection at a start of the engine is made when the first fuel injection command generation section generates the injection command.

Abstract: In an image forming apparatus which has a primary sheet feeder, a secondary sheet feeder for conveying a recording sheet which is fed from the primary sheet feeder to an image forming position in timed relationship with image formation, and a controller for controlling the primary sheet feeder and the secondary sheet feeder, the controller selects long and short two kind of sheet feed intervals according to a detection signal of a recording sheet detector provided upstream of the secondary sheet feeder.

Abstract: A fuel injection and ignition system for an internal combustion engine adapted to apply a power source voltage to an injector, an ignition circuit, an electronic control unit and a fuel pump from a single voltage regulating power source circuit having as a power source a generator driven by the internal combustion engine through a power line and to control a drive current of the fuel pump in a pulse width modulating mode (PWM mode) so as to keep the power line voltage at a value higher than a reference voltage, which is set slightly higher than a voltage corresponding to one higher among the minimum operation voltages for the injector and that for the ignition circuit, in the course where the internal combustion engine starts.

Abstract: A manufacturing method of a water emulsion fuel by which the O/W type water emulsion fuel can be reliably manufactured. For this purpose, an initial method of the manufacturing method has a fuel and additive charging step, an agitating step of agitating the fuel and the additive, a water charging step of charging a predetermined amount of water into a mixing tank, a fine processing step of pumping out a mixture solution of the fuel and the additive, and the water to pass them through the fine processing means and returning them into the mixing tank, a separating step of separating the water and the fuel, and an emulsifying step of emulsifying the fuel, the additive and the water by the step of pumping out the charged solution from the mixing tank, passing it through the fine processing means and returning it to the mixing tank.

Abstract: A vehicle driven by an internal combustion engine incorporating a power supply unit and including a power transmission on/off determination device that gradually opens a throttle valve of an internal combustion engine to gradually increase a rotational speed of the engine, detects, as a determination value that reflects a load applied on the internal combustion engine when the rotational speed of the engine increases to a power transmission start rotational speed, and then the throttle valve is further opened by a set angle, determines that the power transmission device is in a state of cutting the power transmission when it is determined from the determination value that the load applied on the engine is less than a preset magnitude, and determines that the power transmission device is in a state of performing the power transmission when it is determined from the determination value that the load applied on the engine is equal to or more than the preset magnitude.

Abstract: A diesel engine (1) has: a flow adjuster (10) for throttling exhaust flow; an intake heater (71) for heating intake air; a thermal medium circulator (72) for circulating a thermal medium to warm the diesel engine (1); a cylinder cut-off device (73) for conducting cylinder cut-off; and a fuel injection timing advancing device (74) for advancing timing for supplying fuel to a cylinder, the respective devices being actuated at least from pre-high-idle step to a neighborhood of high-idle condition, so that fuel combustion stabilization of the diesel engine (1) can be rapidly enhanced during a period where less fuel is supplied into the cylinder and fuel combustion time is short, thus greatly reducing discharge of white smoke and possibility of engine bunching.

Abstract: An atmospheric pressure detecting method for controlling an internal combustion engine, which can detect atmospheric pressure and takes the atmospheric pressure as one of control conditions of the internal combustion engine without using a throttle sensor and an atmospheric pressure sensor, is provided; wherein a maximum value and a minimum value of intake pipe pressure generating while the internal combustion engine performs one combustion cycle are detected; wherein an absolute value of a difference between the maximum value and the minimum value of the intake pipe pressure is detected as an intake pipe pressure change quantity; and wherein the maximum value of the intake pipe pressure is taken as a detection value of atmospheric pressure when the intake pipe pressure change quantity is equal to or less than a set value.

Abstract: An electronic fuel injection control apparatus for an internal combustion engine, which is used for controlling a quantity of fuel injected from an injector into an intake pipe of the internal combustion engine, includes a microcomputer which performs an arithmetical operation for determining a pressure within the above described intake pipe based on a throttle valve opening degree and a rotational speed, an arithmetical operation for determining a variation relative to an arithmetically operated reference value of the intake pipe pressure, an arithmetical operation for determining a correction coefficient used for correcting an injection time when this variation exceeds a set value, and an arithmetical operation for determining an actual injection time by multiplying a basic injection time by the correction coefficient arithmetically operated immediately before a timing where the fuel is injected, and controls the injector such that the fuel is injected during the arithmetically operated injection time.

Abstract: An electronic fuel injection control apparatus for an internal combustion engine, which is used for controlling a quantity of fuel injected from an injector into an intake pipe of the internal combustion engine, includes a microcomputer which performs an arithmetical operation for determining a pressure within the above described intake pipe based on a throttle valve opening degree and a rotational speed, an arithmetical operation for determining a variation relative to an arithmetically operated reference value of the intake pipe pressure, an arithmetical operation for determining a correction coefficient used for correcting an injection time when this variation exceeds a set value, and an arithmetical operation for determining an actual injection time by multiplying a basic injection time by the correction coefficient arithmetically operated immediately before a timing where the fuel is injected, and controls the injector such that the fuel is injected during the arithmetically operated injection time.

Abstract: An atmospheric pressure detecting method for controlling an internal combustion engine, which can detect atmospheric pressure and takes the atmospheric pressure as one of control conditions of the internal combustion engine without using a throttle sensor and an atmospheric pressure sensor, is provided; wherein a maximum value and a minimum value of intake pipe pressure generating while the internal combustion engine performs one combustion cycle are detected; wherein an absolute value of a difference between the maximum value and the minimum value of the intake pipe pressure is detected as an intake pipe pressure change quantity; and wherein the maximum value of the intake pipe pressure is taken as a detection value of atmospheric pressure when the intake pipe pressure change quantity is equal to or less than a set value.

Abstract: In an image forming apparatus which has a primary sheet feeder, a secondary sheet feeder for conveying a recording sheet which is fed from the primary sheet feeder to an image forming position in timed relationship with image formation, and a controller for controlling the primary sheet feeder and the secondary sheet feeder, the controller selects long and short two kind of sheet feed intervals according to a detection signal of a recording sheet detector provided upstream of the secondary sheet feeder.

Abstract: A diesel engine (1) has: a low adjuster (10) for throttling exhaust flow; an intake heater (71) for heating intake air, a thermal medium circulator (72) for circulating a thermal medium to warm the diesel engine (1); a cylinder cut-off device (73) for conducting cylinder cut-off; and a fuel injection timing advancing device (74) for advancing timing for supplying fuel to a cylinder, the receptive devices being actuated at least from pre-high-idle step to a neighborhood of high-idle condition, so that fuel combustion stabilization of the diesel engine (1) can be rapidly enhanced during a period where less fuel is supplied into the cylinder and fuel combustion time is short, thus greatly reducing discharge of white smoke and possibility of engine hunching.

Abstract: A plasma processing system provided with a vacuum chamber for accommodating a substrate and for generation of plasma in a space in the front of the same, an antenna provided at the vacuum chamber, and a high frequency power source for supplying high frequency power to the antenna. The antenna emits high frequency power, generates plasma inside the vacuum chamber, and processes the surface of the substrate by the plasma. In the plasma processing system, the antenna has a disk-shaped conductor plate having a predetermined thickness. A coaxial waveguide having a folded portion is formed around the disk-shaped conductor plate. The folded portion of the waveguide is provided with a short-circuit 3 dB directional coupler having an impedance matching function. The antenna having the above structure prevents the generation of a standing wave in the high frequency wave propagation path from the high frequency power source to the vacuum chamber and generates high density plasma by supply of a large power.

Abstract: A plasma processing system provided with a vacuum chamber for accommodating a substrate and for generation of plasma in a space in the front of the same, an antenna provided at the vacuum chamber, and a high frequency power source for supplying high frequency power to the antenna. The antenna emits high frequency power, generates plasma inside the vacuum chamber, and processes the surface of the substrate by the plasma. In the plasma processing system, the antenna has a disk-shaped conductor plate having a predetermined thickness. A coaxial waveguide having a folded portion is formed around the disk-shaped conductor plate. The folded portion of the waveguide is provided with a short-circuit 3 dB directional coupler having an impedance matching function. The antenna having the above structure prevents the generation of a standing wave in the high frequency wave propagation path from the high frequency power source to the vacuum chamber and generates high density plasma by supply of a large power.

Abstract: A substituted cyclic amine compound represented by the following general formula (1) ##STR1## wherein each of R.sup.1 to R.sup.5 represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or the like, A represents a carbonyl group or a sulfonyl group, B represents a methine moiety or a nitrogen atom, D represents a methine moiety, a nitrogen atom or .dbd.N(.fwdarw.O)-- and n is an integer of 2 to 3; and synthetic methods thereof. The inventive compound is useful in preventing and treating circulatory organ-related diseases such as hypertension, ischemic heart disease, cerebrovascular disease, peripheral circulatory disease and the like.

Abstract: A method for preventing the generation of the hydration of 4-hydroxy-4'-isopropoxydiphenylsulfone characterized in that the particles of 4-hydroxy-4'-isopropoxydiphenylsulfone are subjected to wet grinding in water in the presence of diphenylsulfone derivatives represented by the general formula (I); ##STR1## wherein R.sup.1 represents hydrogen or lower alkyl, R.sup.2 and R.sup.3 represent each independently lower alkyl, n and m denote 0 or an integer of from 1 to 4, with a proviso that n and m can never be 0 at the same time in case R.sup.1 represents hydrogen, is disclosed. By using the dispersible solution of color developer according to the present invention, the production of high sensitive and unclean background-free thermal sensitive recording papers can be accomplished.

Abstract: A cis-bicyclo[4.3.0]non-2-ene derivative of the formula: ##STR1## wherein R is a hydrogen atom, or a protecting group for a hydroxyl group, R.sup.1 is a hydrogen atom, A C.sub.1 -C.sub.12 straight or branched chain alkyl group, a substituted or unsubstituted phenyl group, a C.sub.6 -C.sub.12 aralkyl group containing a condensed aromatic ring or an aromatic hetero ring, or 1 equivalent of a cation, A is --CH.dbd.CH--CH.sub.2 --, or --CH.sub.2 --CH.sub.2 --O--, R.sup.2 is a C.sub.3 -C.sub.10 straight or branched chain alkyl group, a C.sub.1 -C.sub.3 alkyl group substituted by an aryloxy group which may be substituted, a C.sub.3 -C.sub.12 straight or branched chain alkenyl group, a C.sub.3 -C.sub.8 straight or branched chain alkynyl group, a C.sub.1 -C.sub.3 alkyl group substituted by a phenyl or phenoxy group which may be substituted, by a C.sub.1 -C.sub.6 alkoxy group or by a C.sub.5 -C.sub.8 cycloalkyl group, R.sup.3 is a hydrogen atom, a methyl group, or a vinyl group, and X is a halogen atom.

Abstract: The power supply installation for a direct current railroad comprises two diode bridge-connected circuits, only two thyristor breakers each connected in parallel to each of the two diode bridge-connected circuits, four dc disconnecting switches each connected between a diode bridge-connected circuit and one of four electric car power supply lines constituting a double track, separately. Further, the two diode bridge-connected circuits are connected by a dc disconnecting switch closed only in case of an accident. In case a ground fault occurs at a power supply line, a powering current to the defective line is interrupted by one of the breakers, together with an extension power supply current supplied from an adjacent substation, without exerting an influence of accident upon the other power supply lines. Further, even if one of the breakers is broken, powering currents are kept supplied to all the power supply lines through a mutual spare bus bar.

Abstract: An output voltage of an AC generator is produced through a full-wave rectifier and converted into a digital signal by an A/D converter. This digital signal is compared with a reference signal, and in accordance with the difference therebetween, the firing angle of a thyristor is controlled to regulate the field current. Synchronous point detectors detect a synchronous point of the output voltage of the AC generator. A microprocessor computes a firing angle of the thyristor in accordance with the difference between the digital signal and the reference signal and produces a signal representing the computed firing angle upon detection of the synchronous point. The thyristor is fired at the firing angle computed by the microprocessor.

Abstract: A thermo-magnetically operated switch having lower and higher operating points is maintained open below the lower operating point and above the higher operating point and is maintained closed between the two different operating points, and comprises a reed switch, two permanent magnets disposed alongside the reed switch over the respective reeds, a first ferromagnetic body having a Curie point corresponding to the higher operating point and disposed between the two magnets, and a second ferromagnetic body or bodies having a Curie point corresponding to the lower operating point and disposed along the two magnets. In order to improve reliability of the switch, two third ferromagnetic bodies having Curie points at or above the lower operating point are disposed to engage axial opposite ends of the second ferromagnetic body or bodies and the other pole faces of the magnets opposite the pole faces engage the first ferromagnetic body.