Abstract: An internal combustion engine control apparatus: sets a target intake air amount and a target ignition timing, based on a target torque; predicts an increase in a load of power generation by a generator that is coupled to a power transmission system and generates electric power by being driven by an output torque of an internal combustion engine; when the load of the power generation is predicted to increase, sets an amount of increase correction on the target intake air amount, based on a power generation torque for driving the generator, and sets a retardation amount of the target ignition timing, based on a difference between the target torque and the output torque of the internal combustion engine achieved by the target intake air amount after the increase correction; and returns the target ignition timing to an advance side when a speed of the internal combustion engine suddenly drops.

Abstract: A fuel injection valve is provided that includes an electromagnetic actuator (A1) that moves a valve body (10) in an inwardly-opening direction, and a magnetostrictive actuator (A2) that, by passing current therethrough, elongates a movable part assembly (43) extending from the valve body (10) to a movable core (24) of the electromagnetic actuator (A1), wherein the magnetostrictive actuator (A2) is formed from a solid magnetostrictive element (15) provided between the valve body (10) and the movable core (24) of the electromagnetic actuator (A1) so as to couple the valve body (10) and the movable core (24), a preload spring (13) provided between the valve body (10) and the movable core (24) so as to apply a compressive preload in the axial direction of the valve body (10) to the magnetostrictive element (15), and a second coil (42) mounted on a valve housing (H) housing the valve body (10), the movable core (24), the magnetostrictive element (15), and the preload spring (13), the second coil (42) elongating t

Abstract: In an electromagnetic fuel injection valve, a valve housing is formed by sequentially connecting a valve seat member, a magnetic cylinder, a nonmagnetic collar, and a stationary core. A coil housing is fittingly fixed to an outer periphery of the magnetic cylinder, and houses a coil assembly provided in an outer periphery of the stationary core. The coil housing includes a shell part surrounding the coil housing, an annular bent part bent radially inward from a front end of the shell part, and a cylindrical boss part projecting forward from a front end of the annular bent part. An inner peripheral surface of the annular bent part and an inner peripheral surface of at least a rear half part of the boss part are shrinkage-fitted to an outer peripheral surface of the magnetic cylinder.

Abstract: A fuel injection valve is provided that includes an electromagnetic actuator (A1) that moves a valve body (10) in an inwardly-opening direction, and a magnetostrictive actuator (A2) that, by passing current therethrough, elongates a movable part assembly (43) extending from the valve body (10) to a movable core (24) of the electromagnetic actuator (A1), wherein the magnetostrictive actuator (A2) is formed from a solid magnetostrictive element (15) provided between the valve body (10) and the movable core (24) of the electromagnetic actuator (A1) so as to couple the valve body (10) and the movable core (24), a preload spring (13) provided between the valve body (10) and the movable core (24) so as to apply a compressive preload in the axial direction of the valve body (10) to the magnetostrictive element (15), and a second coil (42) mounted on a valve housing (H) housing the valve body (10), the movable core (24), the magnetostrictive element (15), and the preload spring (13), the second coil (42) elongating t

Abstract: In an electromagnetic fuel injection valve, a valve housing is formed by sequentially connecting a valve seat member, a magnetic cylinder, a nonmagnetic collar, and a stationary core. A coil housing is fittingly fixed to an outer periphery of the magnetic cylinder, and houses a coil assembly provided in an outer periphery of the stationary core. The coil housing includes a shell part surrounding the coil housing, an annular bent part bent radially inward from a front end of the shell part, and a cylindrical boss part projecting forward from a front end of the annular bent part. An inner peripheral surface of the annular bent part and an inner peripheral surface of at least a rear half part of the boss part are shrinkage-fitted to an outer peripheral surface of the magnetic cylinder.

Abstract: In an electromagnetic fuel injection valve, a fitting surface of a valve housing, over which a seal positioning ring is fitted, is formed of a diameter smaller than that of an annular sealing surface over which a seal member is fitted. A tapered surface is provided between the fitting surface and the sealing surface, and a resilient projection is formed on the seal positioning ring, so that the projection is in pressure contact with the tapered surface in a state in which the seal positioning ring has been fitted over the fitting surface. Thus, the seal positioning ring can be retained easily and precisely in a regular position on the outer peripheral surface of the valve housing by a reaction force provided by the resilient projection and hence, no post-treatment is required.

Abstract: A filter in a fuel channel is made of a synthetic resin material and is inserted into the fuel channel of one edge portion on the inserting side of a second fuel pipe that is inserted and connected into a first fuel pipe, thereby removing a foreign matter in a fuel. The filter is made up of an annular flange portion having an outer diameter larger than an outer diameter of the second fuel pipe, a cylinder portion having an outer diameter smaller than the outer diameter of the annular flange portion, the cylinder portion having an opening portion provided in an outer peripheral portion so as to be communicated with a channel provided in the cylinder portion, a filter net provided for the opening portion and an annular collar member which is made of a metal material and has an outer diameter larger than an inner diameter of the second fuel pipe.