摘要:
An engine having a plastic head cover, wherein a cylinder head of the engine is covered by a plastic head cover; a respective spark plug mounted in said cylinder head is connected directly to an individual ignition type ignition coil which is prepared for each of said spark plug; said individual ignition type ignition coil comprises a coil portion in which a center core, a secondary coil wound on a secondary bobbin and a primary coil wound on a primary bobbin are installed concentrically inside a thin narrow cylindrical shape coil case and a circuit case having a connector which is provided at an upper portion of said coil case and has an ignition circuit unit inside; said coil portion is penetrated through said plastic head cover and the center of gravity of said ignition coil is positioned at a lower position from said plastic head cover; and said circuit case having said connector is fixed to an outer face of said plastic head cover.
摘要:
An individual ignition type ignition coil in which the ignition coil has a center core, a primary coil wound on a primary bobbin and a secondary coil wound on a secondary bobbin in an inner side thereof, and the ignition coil is used by mounting a respective spark plug hole of an engine and connecting directly to a respective spark plug, wherein said secondary bobbin wound said secondary coil is arranged in an inner side of said primary bobbin.
摘要:
In order to provide a resin sealed electronic device which is capable of securing high reliability by packaging with a transfer molding resin (4) without using any under filler material, and a method, a resin sealed electronic device which mounts a flip chip type monolithic IC (1) on a hybrid circuit board (3) through bumps (2) and is packaged with a thermosetting resin through transfer molding, wherein the transfer molding resin (4) has a linear expansion coefficient of 3X10 -6 to 17X10 -6 and contains a filler having a particle size smaller than a height of the bump by more than 10 µm, and the resin sealed electronic device is integrated in a unit including the hybrid circuit board (3) mounting the flip chip type monolithic IC (1) through transfer molding with the transfer molding resin (4), and the bump (2) is restrained from moving by the transfer molding resin (4) flowing around at transfer-molding.
摘要:
An ignition apparatus is received in a plug hole (43a) which is formed by a cylinder head (41a) and a cylinder head cover (42a) of an internal combustion engine. A side core (18) has a slit between two horizontally extending side wall ends. The side core (18) comprises one selected from a laminated sheet structure comprised of two grain oriented silicon steel sheets, each having a slit between two horizontally extending side wall ends, and the plural slits align at a substantially same position. The slit prevents an one-turn short of a magnetic flux of the side core (18), thereby a predetermined secondary voltage more than an engine requirement secondary voltage is obtained. An ignitor reception portion comprises an independent and individual ignitor reception portion and an independent and individual coil reception portion, and the ignitor reception portion and the coil reception portion are combined.
摘要:
In order to make bulk and weight of the upper igniter case division of the armor case, small, and to design center of the gravity of the total apparatus to be lower underneath so as to provide an igniter which is tough to the oscilliation, the igniter for the internal combustion engine has the armor case equipped with the coil department and igniter unit (30) therein, and said armor case has the igniter case having the coil department case (15 b) and the connector department (34), furthermore, said coil department case (15 b) mentioned above is inserted in the plug hole (5) of the internal combustion engine, and the igniter unit (30) is mounted in the igniter case, and furthermore, the igniter unit (30) mentioned above has the semiconductor device (31) of the simple substance silicon chip built-in the simple substance silicon chip mounting the semi-conductor for switching and the current limiting circuitry (31 b) therein, and the semi-conductor for switching mentioned above consists of the insulated bipolar transistor (IGBT) (31 a) or the power transistor.
摘要:
A cylindrical type ignition apparatus housed in a spark plug hole of a cylinder of an internal combustion engine is disclosed. A center core, a primary coil, a secondary core and a side core are provided, and a closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a high voltage side and a core on a low voltage side, or a semi-closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a low voltage side.
摘要:
An induction discharge system ignition device for an internal combustion engine includes a power switching device (P sw ) for producing a voltage to be applied to the primary winding of an induction coil (11). The secondary of the induction coil is connected to apply a high-tension voltage to a spark plug (P₁ - P₆). The power switching device and the coil are particularly arranged to produce a voltage of at least 6.0kV across the electrodes of the spark plug when the spark plug has a leakage of 100kΩ. The turns ratio of the coil is, preferably, 70 or less.
摘要:
An electronic device is formed by connecting a wiring plate (19) and an insulating plate (2) mounting semiconductor chips (1) to a base (4). A composite material plate (3), which is made by combining material (3a, 3b) having different linear thermal expansion coefficients, is inserted between the base (4) and the insulating plate through solders (5). The thickness ratio (h a /h b ) of the materials of the composite material plate (3) is selected in the manner that a strain of the solder (5) between the base (4) and the composite material plate (3) is equal to the strain of the solder (5) between the insulating plate (2) and the composite material plate (3).