A contactless ignition device for a general purpose engine having no battery, wherein a primary coil and a charging coil both have the desired inductance and impedance, and the ignition device has a configuration that is small, simple, and highly reliable. A primary coil (L1) and a charging coil (LCH) are wound around a primary bobbin (57) through which a yoke is inserted, the coils (L1, LCH) constituting a coil portion (L). The primary coil is configured from a plurality of coils (L11, L12) connected in parallel, and the primary coil and the charging coil are connected in series. The charging coil and the primary coil configured from the plurality of coils are configured by selectively binding an intermediate part of a single conducting wire to a plurality of terminals (63a~63c) formed on the primary bobbin, without cutting the conducting wire partway through.
F02P 15/00 - Electric spark ignition having characteristics not provided for in, or of interest apart from, groups
F02P 1/02 - Installations having electric ignition energy generated by magneto- or dynamo-electric generators without subsequent storage the generator rotor being characterised by forming part of the engine flywheel
This internal combustion engine ignition device, which does not have a battery, is capable of reliably providing ignition from the very start of the rotation of an engine, and prevents the excessive generation of ignition energy. The internal combustion engine ignition device has a core (12), a coil part (L) that is wound over the core, and a secondary coil (L2) that is wound on the outer peripheral side of the coil part. A switching element (Tr) switches an induced current, which is generated via the rotation of a permanent magnet, of a primary coil on and off. A resistor (R1) and a microcomputer (42) are connected to the switching element, and a rotation detection circuit (41) is connected to the microcomputer. The microcomputer drives the switching element so as to rapidly change the current flowing through the primary coil and generate a high voltage in the secondary coil, and generate a spark discharge in a spark plug (22) connected to the secondary coil. In the coil part (L), one coil is divided by an intermediate tap (Tap), forming the primary coil (L1) and a charging coil (LCH).
Provided is an electric pump that secures a space that is sufficient for the provision of electric components, and achieves the standardization of a motor unit. In the electric pump (10): the motor unit (20), including a power source bus bar (27) provided integrally with an end cap (22) that is attached to the opening side of a motor cover (21), is provided; a pump part (30), including a pump plate (31) that is provided integrally with an outer wall part (311) and a cam ring (313), and includes a rotor (32) that has a vane groove (322) for housing a vane (33), is provided; a cover (40), covering the pump part (30) and including a connector box (45) that surrounds an insertion recess part (45a), is provided; the pump plate is provided with a through hole (317) into which the power source bus bar (27) can be inserted; wiring (28) is inserted into the power source bus bar (27) that inserts into the through hole (317), such that the wiring (28) protrudes from the tip side of the through hole (317); and the wiring (28) is electrically connected to a connection part (46) provided in the insertion recess part (45a).
F04C 18/344 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
A vehicle provided with an assist motor for assisting a main drive source for driving rear wheels or front wheels, the vehicle comprising: a base assist amount determination means for determining a base assist amount for allotting a base value for the amount of assistance provided by the assist motor; a load detection means for detecting the load on a portion located to the rear of the center of gravity of a vehicle body; a calculation means for calculating, for the detected load, a correction coefficient by which to multiply the base assist amount in order to find the actual assist amount commensurate with the load capacity of the vehicle and the inclination angle of the road surface on which the vehicle is traveling; and an actual assist amount calculation means for multiplying the base assist amount by the correction coefficient to find the actual assist amount; an actual assist amount that reflects the inclination angle of the road surface being obtained without the use of an inclination angle sensor.
This control device is provided in an internal combustion engine containing a magnet generator that has a magneto coil that generates the following in sequence as the internal combustion engine rotates: a first half-wave voltage, a second half-wave voltage of a different polarity from the first half-wave voltage, and a third half-wave voltage of the same polarity as the first half-wave voltage. The second half-wave voltage is used to drive an ignition device. The control device, which uses a microprocessor to control loads other than the ignition device, is provided with an electricity-storage element that taps excess power from the ignition-device-driving output from the magnet generator, and in order to supply power to the aforementioned loads and the microprocessor, is charged both by the first and third half-wave voltages and by the second half-wave voltage during the exhaust stroke of the internal combustion engine. A power-supply circuit uses the energy stored in the electricity-storage element to produce a power-supply voltage to provide to the loads other than the ignition device and to the microprocessor.
F02P 15/08 - Electric spark ignition having characteristics not provided for in, or of interest apart from, groups having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
6.
POWER SUPPLY UNIT CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE DRIVEN VEHICLE AND INTERNAL COMBUSTION ENGINE DRIVEN VEHICLE EQUIPPED WITH POWER SUPPLY UNIT CONTROL DEVICE
A power supply unit control device for an internal combustion engine driven vehicle is proposed, comprising: a lamp driving switch for turning on and off lamp driving current supplied to the headlamps of a vehicle from a battery charged by the output of an AC power generator driven by an internal combustion engine; and a driving control unit for controlling the lamp driving switch. The driving control unit is configured so as to perform, during normal time, an on/off control of the lamp driving switch at a normal duty ratio, where the normal duty ratio is defined to be an on/off duty ratio of the lamp driving switch capable of maintaining the lamp driving current at a value that allows a battery to be charged, and so as to interrupt, during internal combustion engine deceleration time, the on/off control of the lamp driving switch performed at the normal duty ratio and perform a combustion engine deceleration-time lamp-driving control only for a limited time, in which the lamp driving switch is controlled so as to conduct the lamp driving current necessary for preventing the light amount of the headlamps from being lowered to the headlamps.
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
A control device which controls a rotating electrical machine which functions as a motor and a generator comprises: a power transformer circuit which carries out a function as an inverter which supplies drive current from a battery to a rotating electrical machine and a function as a rectifier which rectifies generated power output of the rotating electrical machine and supplies same to the battery; and a controller which controls the transformer circuit to be in a state of short-circuiting a three-phase armature coil of the rotating electrical machine when the battery is disconnected from the transformer circuit and the DC output voltage of the transformer circuit becomes excessive, and thereafter when the direct current voltage of the transformer circuit has declined to a set minimum voltage to be in a state of disabling a monophasic short-circuit of the armature coil and short-circuiting only a diphase thereof.
In a capacitor discharge type internal-combustion engine, the risks of malfunction and trouble due to a surge intruding via an engine stop switch can be eliminated. A capacitor discharge type internal-combustion engine ignition device comprises: an ignition capacitor provided on the primary side of an ignition coil; a charging circuit for charging the ignition capacitor using the output voltage of an exciter coil; and an ignition switch for discharging the charge stored on the ignition capacitor via the primary coil of the ignition coil. In the capacitor discharge type internal-combustion engine ignition device, an engine stop switch is inserted into the charging circuit, and a constant-voltage circuit that performs an operation for limiting the induced voltage of the exciter coil to a certain value or less is connected to both ends of the exciter coil.
An ignition control device for an engine is provided with a start-time ignition control unit which has a function of preventing the occurrence of kickback by retarding the ignition position of the engine or stopping ignition, a start-time rotational angle detection means which detects, as a start-time rotational angle, the rotational angle of a crankshaft from the start time of a starting operation of the engine, and a switching means which switches the control contents of the start-time ignition control unit according to the detected start-time rotational angle so that when the detected start-time rotational angle is less than a set angle, a kickback prevention effect is produced within a range in which the starting performance of the engine is not impaired, and when the detected start-time rotational angle is more than or equal to the set angle, a kickback prevention effect greater than the kickback prevention effect when the start-time rotational angle is less than the set angle is produced.
In a method connecting a single wire to a wire barrel of a crimping terminal, a crimping connection between the wire barrel and the single wire being made by providing a concave portion or a hole on a bottom wall of the wire barrel and forming the wire barrel so as to cause the wire barrel to embrace the single wire thereinside, and crimping the wire barrel to the single wire as well as fitting a portion of the single wire into the concave portion or the hole of the bottom wall of the wire barrel. During the course of making the crimping connection, the wire barrel is so formed as the crimping connection's ultimate cross-sectional outline shape to be hexagonal, so that from a whole volume of a metal constituting the wire barrel, a volume of the metal which is forced toward outside during the formation of the wire barrel is increased, thereby preventing an excessive force to be applied to the wire barrel.
H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
Provided is an ignition device for an internal combustion engine, which comprises an exciter coil for generating an AC voltage having positive half waves and first and second negative half waves to appear before and after the positive half waves, in accordance with the rotations of the internal combustion engine, and an ignition control unit for controlling the ignition position of the engine by using a microprocessor given a power source voltage from a power source circuit for converting the voltage of the negative half waves generated by the exciter coil, into a DC voltage. The ignition control unit is constituted to start the timing action of a timer at the action starting time of the microprocessor. When the voltage of the negative half voltages generated by the exciter coil at first after the microprocessor starts its actions, the ignition control unit computes, while assuming the measured value of the timer as the time period from the generation of the voltage of the first negative half waves to the generation of the voltage of the second negative half waves, the timing data for measuring the ignition position, on the basis of the rotating speed information of the engine, as obtained from that time period. The ignition control unit instantly measures the timing data computed, and generates an ignition signal.
A resin-sealed semiconductor device (2) has a structure wherein a portion required to be sealed in constituting elements, which include a plurality of chip mounting boards, a semiconductor chip mounted on the front surfaces of the chip mounting boards and a plurality of leads arranged for each chip mounting board, are embedded in resin mold sections (41, 42) having a board shape as a whole. The outer lead sections of the leads (16, 17) are lead out in a row, from the side surface on one end in the width direction of the resin mold sections, and the rear surface of each chip mounting board is arranged on one surface of the resin mold sections (41, 42) as exposing surfaces (11u1-11w1 and 12u1-12w1). A plurality of aligning protruding sections (50) are arranged on the one surface side of the resin mold sections (41, 42). The protruding height of the aligning protruding sections is set so that a space for to be filled with an insulating resin is formed between each section of the exposing surface of each chip mounting board and the heat sink, at the time when the aligning protruding sections (50) are made to abut to the heat sink.
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