Abstract: A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held.

Abstract: A rotary electric machine stator according to the present invention includes: a frame that includes: a tube portion; and a flange portion that is disposed so as to be integrated with the tube portion so as to protrude radially outward from a first axial end of the tube portion; a stator core that is configured into an annular shape, and that is fitted together with and held inside the tube portion; coils that are mounted to the stator core; and a plurality of positioning members that are mounted to the flange portion so as to be movable radially and circumferentially around an axial center of the stator core.

Abstract: A rotating electric machine to which the present invention is applied includes: a plurality of coils provided in a stator for respective phases; a plurality of bus bars having elasticity, which are provided for the respective phases and connected to the plurality of coils; and a holder including a plurality of insertion portions each having a groove shape formed to deform each of the plurality of bus bars.

Abstract: A rotating electric machine is provided with a connection member, formed in the shape of a ring, that is disposed on at least one axis-direction end of a stator core and that mutually connects a plurality of coils; the axis-direction end face, at the stator-opposite side, of the connection member is formed in such a way that at a plurality of different positions in the radial direction of the connection member, the axis-direction positions of the connection member differ from one another.

Abstract: A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held.

Abstract: A rotary electric machine stator according to the present invention includes: a frame that includes: a tube portion; and a flange portion that is disposed so as to be integrated with the tube portion so as to protrude radially outward from a first axial end of the tube portion; a stator core that is configured into an annular shape, and that is fitted together with and held inside the tube portion; coils that are mounted to the stator core; and a plurality of positioning members that are mounted to the flange portion so as to be movable radially and circumferentially around an axial center of the stator core.

Abstract: A rotor of a rotary machine includes a ring-like fixing member press-fit and fixed to a shaft so as to limit a position of a rotor core in a shaft axial direction and an end plate fixed to an outer peripheral side of the fixing member so as to limit a position of a magnet, embedded in the rotor core, in the shaft axial direction. Influences of a difference in thermal expansion between the shaft and the end plate are lessened by the fixing member. A material is selected so that a value of a coefficient of linear expansion of the fixing member becomes equal to an intermediate value between a coefficient of linear expansion of the shaft made of iron and a coefficient of linear expansion of the end plate made of a non-magnetic body.

Abstract: In an embedded magnet rotor for a rotary electric machine, permanent magnets are respectively accommodated in magnet housing apertures that pass axially through a rotor core that is held by a shaft, an adhesive is injected into and cured in gaps between the permanent magnets and the rotor core in the magnet housing apertures, and fixes the permanent magnets to the rotor core, a first end plate is held by the shaft so as to contact a first axial end of the rotor core, and blocks first axial end openings of the plurality of magnet housing apertures, and a fill rate of the adhesive that is injected into the gaps is increased gradually from a first axial end toward a second axial end of the magnet housing apertures.

Abstract: A rotating electric machine is provided with a connection member, formed in the shape of a ring, that is disposed on at least one axis-direction end of a stator core and that mutually connects a plurality of coils; the axis-direction end face, at the stator-opposite side, of the connection member is formed in such a way that at a plurality of different positions in the radial direction of the connection member, the axis-direction positions of the connection member differ from one another.

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract: Obtain a rotary electric machine by which a share of coil slots for a stator winding in slots, which are formed in a stator core, can be increased, and heat generation at a central portion of a stator can be decreased. The stator winding is composed of coil slots, which are inserted to the slots, and coil ends extended toward the outside in the axis direction of the stator core; and the coil conductors of the coil slots are configured in such a way that cross-sectional areas at central portions in the axis direction are wider cross-sectional areas at both end portions, and the cross-sectional areas of the coil conductors are reduced along the coil slots from the central portions to the both end portions.

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract: In an embedded magnet rotor for a rotary electric machine, permanent magnets are respectively accommodated in magnet housing apertures that pass axially through a rotor core that is held by a shaft, an adhesive is injected into and cured in gaps between the permanent magnets and the rotor core in the magnet housing apertures, and fixes the permanent magnets to the rotor core, a first end plate is held by the shaft so as to contact a first axial end of the rotor core, and blocks first axial end openings of the plurality of magnet housing apertures, and a fill rate of the adhesive that is injected into the gaps is increased gradually from a first axial end toward a second axial end of the magnet housing apertures.

Abstract: A rotor of a rotary machine includes a ring-like fixing member press-fit and fixed to a shaft so as to limit a position of a rotor core in a shaft axial direction and an end plate fixed to an outer peripheral side of the fixing member so as to limit a position of a magnet, embedded in the rotor core, in the shaft axial direction. Influences of a difference in thermal expansion between the shaft and the end plate are lessened by the fixing member. A material is selected so that a value of a coefficient of linear expansion of the fixing member becomes equal to an intermediate value between a coefficient of linear expansion of the shaft made of iron and a coefficient of linear expansion of the end plate made of a non-magnetic body.

Abstract: Obtain a rotary electric machine by which a share of coil slots for a stator winding in slots, which are formed in a stator core, can be increased, and heat generation at a central portion of a stator can be decreased. The stator winding is composed of coil slots, which are inserted to the slots, and coil ends extended toward the outside in the axis direction of the stator core; and the coil conductors of the coil slots are configured in such a way that cross-sectional areas at central portions in the axis direction are wider cross-sectional areas at both end portions, and the cross-sectional areas of the coil conductors are reduced along the coil slots from the central portions to the both end portions.

Abstract: Busbars that are disposed so as to correspond to respective phases of a stator coil each include: a base portion that is formed so as to have an incomplete annular shape; external electric power supply terminals that extend radially inward from a first circumferential end of the base portion; and a plurality of coil connecting terminals that each extend radially outward from the base portion, that are arranged in a row so as to have a predetermined spacing in a circumferential direction of the base portion, and that are connected to coil terminals of concentrated winding coils, and the busbars are held by the electrically insulating holder such that the external electric power supply terminals extend radially inward so as to pass over omitted portions of the base portions of the busbars that are positioned radially inside the electrically insulating holder.

Abstract: Busbars that are disposed so as to correspond to respective phases of a stator coil each include: a base portion that is formed so as to have an incomplete annular shape; external electric power supply terminals that extend radially inward from a first circumferential end of the base portion; and a plurality of coil connecting terminals that each extend radially outward from the base portion, that are arranged in a row so as to have a predetermined spacing in a circumferential direction of the base portion, and that are connected to coil terminals of concentrated winding coils, and the busbars are held by the electrically insulating holder such that the external electric power supply terminals extend radially inward so as to pass over omitted portions of the base portions of the busbars that are positioned radially inside the electrically insulating holder.

Abstract: A fuel injection valve includes a valve seat which has a valve seat surface, an injection nozzle having an inclined axis center, and a conically-shaped tapered surface located between the valve seat surface and the injection nozzle; and a valve element for controlling fuel supply to the injection nozzle. One part of an opening of the injection nozzle is connected to the tapered surface; the other part of the opening is connected to the valve seat surface; and a relationship between an angle ?1 formed by the injection nozzle and the tapered surface at an area where the injection nozzle is connected to the tapered surface side, and an angle ?2 formed by the injection nozzle and the valve seat surface at an area where the injection nozzle is connected to the valve seat surface side is configured to be ?1??2.