Patent application number | Description | Published |
20090261684 | STATOR OF ELECTRIC ROTATING MACHINE - The stator of an electric rotating machine includes a stator core having slots formed at an inner periphery thereof, and a stator winding constituted by conductive wires wound on the slots. The stator winding including in-slot portions accommodated in the slots and turn portions each connecting each adjacent two of the in-slot portions at outside of the slots. The stator core including a core member having at least three tooth portions extending in a radial direction of the stator core and a core back portion integrally connecting the tooth portions at a radially end side thereof. The core member is configured such that each of the first tooth portions folded toward the core back portion is capable of unfolding to extend between a corresponding adjacent two of the in-slot portions when the core member is at a predetermined axial position with respect to the stator winding. | 10-22-2009 |
20100038981 | ROTATING ELECTRIC MACHINE AND COOLING SYSTEM FOR THE ROTATING ELECTRIC MACHINE - Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends. | 02-18-2010 |
20100257722 | STATOR OF ELECTRIC ROTATING MACHINE - A method of manufacturing an electric rotating machine having a stator that includes a stator core having slots formed at an inner periphery thereof, and a stator winding constituted by conductive wires wound on the slots. The stator winding includes in-slot portions accommodated in the slots and turn portions each connecting each adjacent two of the in-slot portions outside the slots. The stator core includes a core member having at least three tooth portions extending in a radial direction of the stator core and a core back portion integrally connecting the tooth portions at a radially end side thereof. The core member is configured such that each of the first tooth portions folded toward the core back portion is capable of unfolding to extend between a corresponding adjacent two of the in-slot portions when the core member is at a predetermined axial position with respect to the stator winding. | 10-14-2010 |
20100264760 | ELECTRIC ROTATING MACHINE - The electric rotating machine includes a rotor relatable around a rotating shaft disposed horizontally, a stator core formed with slots, and a stator coil constituted of in-slot portions each of which is accommodated in a corresponding one of the slots, and turn portions each of which connects corresponding adjacent two of the in-slot portions at a position outside the stator core. The turn portions form a coil end projecting axially outward from an end surface of the stator core at each of both axial end sides of the stator core. The coil end is formed in a cylindrical shape including an axial end surface of a flat shape, and inner and outer peripheral surfaces of a circular shape. The electric rotating machine further includes a coolant supply section to supply coolant to an upper part of the outer peripheral surface of the coil end. | 10-21-2010 |
20110108247 | COOLING APPARATUS FOR SEMICONDUCTOR ELEMENT - A semiconductor element cooling apparatus includes: a first member whose first surface on which a semiconductor element is mounted, and whose second surface has fins that define coolant flow paths, and that extend in a first direction, and that stand from the second surface to a predetermined height, and that are spaced from each other by predetermined intervals; and a second member that defines the coolant flow paths that extend in the first direction. The fins have grooves which extend in a second direction that intersects the first direction, and which have a depth that extends from the distal end side of the fins toward the second surface. The depth of the grooves is smaller than the height of the fins. A protrusion-forming member is disposed in the grooves, and extends across adjacent fins, and forms protrusions in the coolant flow paths defined by the adjacent fins. | 05-12-2011 |
20110132591 | HEAT EXCHANGER AND METHOD OF MANUFACTURING SAME - Provided are a heat exchanger having a novel structure and efficiently cooling a heat generating body, and a method of manufacturing the heat exchanger. A heat exchanger has flow paths formed by being closed by an upper plate and a lower plate which have rectilinearly formed upstanding fins parallelly arranged at specific intervals, and gaps extend between adjacent fins in the top-bottom direction along the direction in which the fins extend. Either of or both the upper plate and the lower plate are provided with projections arranged in the longitudinal direction of the flow path and projecting inward of the flow path. | 06-09-2011 |
20110156508 | ELECTRIC ROTATING MACHINE WITH COOLING MECHANISM - An electric rotating machine is provided which includes a stator in which a coil is so wound as to have an coil end and a coolant channel. The coolant channel has defined therein a flow path through which coolant flows and a flow separator disposed in the flow path and a first and a second coolant outlet. The flow separator works to separate a flow of the coolant into at least a first and a second coolant streams. The first coolant outlet communicates with the first coolant stream, while the second coolant outlet communicates with the second coolant stream. The first and second coolant outlets drain the coolant to different portions of the coil end, thereby cooling almost the whole of the coil end even when the electric rotating machine is tilted undesirably. | 06-30-2011 |
20110156509 | ELECTRIC ROTATING MACHINE WITH COOLING MECHANISM - An electric rotating machine includes a rotor, a stator in which a coil is so wound as to have an coil end, and a coolant supply pipe. The coolant supply pipe lies with a length thereof extending substantially parallel to an axis of rotation of the rotor and is disposed above the stator in a direction of gravitational force. The coolant supply pipe has a first and a second coolant outlet through which coolant is to be emitted to the coil end. The first and the second coolant outlets are so oriented as to direct streams of the coolant to a first area and a second area of the coil end which are different in location from each other. This enables the coolant to be emitted to almost the whole of the coil end even when the electric rotating machine is titled in a direction in which the rotor turns. | 06-30-2011 |
20140138063 | COOLING FIN STRUCTURE - A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins ( | 05-22-2014 |
20140346905 | ROTATING ELECTRIC MACHINE - A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator core and a stator coil. The stator core is disposed radially outside the rotor so as to surround the rotor. The stator coil is mounted on the stator core so that a pair of coil ends of the stator coil protrude axially outward respectively from opposite axial end faces of the stator core. The cooling device is configured to supply cooling liquid to vertically upper parts of the coil ends of the stator coil. Each of the cooling liquid collection tanks is arranged to surround a vertically lower part of a corresponding one of the coil ends so as to collect and temporarily reserve therein the cooling liquid moved from the upper part to the lower part of the corresponding coil end. | 11-27-2014 |
Patent application number | Description | Published |
20090204285 | DIAGNOSTIC APPARATUS AND DIAGNOSTIC METHOD FOR BELT SQUEEZING FORCE ADJUSTING MECHANISM - A diagnostic apparatus and a diagnostic method are provided for a belt squeezing force adjusting mechanism of a continuously variable transmission in which a belt is wound around a primary sheave that receives driving force and a secondary sheave that outputs force to a drive line, and which continuously changes the output rotation speed by adjusting the width of the groove the primary sheave and the secondary sheave by shift control. This diagnostic determines, as a precondition, whether a target control value calculated in shift control is in a low region, and performs a diagnostic on the belt squeezing force adjusting mechanism based on the relationship between an actual control value and the target control value during control to reduce a control value when it is determined that the precondition is satisfied. According to this diagnostic apparatus and diagnostic method, an erroneous diagnosis can be prevented so the diagnostic can be performed accurately. | 08-13-2009 |
20090319144 | SHIFT CONTROL APPARATUS OF A CONTINUOUSLY VARIABLE TRANSMISSION AND METHOD OF DETERMINING WHETHER SHIFT CONTROL APPARATUS IS OPERATING NORMALLY - The invention provides a shift control apparatus of a continuously variable transmission, which includes a feedback control portion which executes feedback control that brings an actual speed ratio close or equal to a target speed ratio, and a normal operation determining portion which determines whether the shift control apparatus is operating normally based on a difference between the actual speed ratio and the target speed ratio, and an amount of change in the actual speed ratio and an amount of change in the target speed ratio during a predetermined interval. | 12-24-2009 |
20100099535 | CONTINUOUSLY VARIABLE TRANSMISSION CONTROL APPARATUS - In an embodiment of the continuously variable transmission control apparatus of the present invention, even if an actual gear change ratio RATIO overshoots a target gear change ratio RATIO T and an upshift gear change instruction (DS | 04-22-2010 |
20100191407 | FAILURE DETERMINING DEVICE AND FAILURE DETERMINING METHOD OF CONTINUOUSLY VARIABLE TRANSMISSION - An ECU executes a program including the steps of determining that a change speed solenoid is abnormal when a target speed ratio falls within a predetermined range, an upshift is recognized and the change speed solenoid is abnormal; determining that the change speed solenoid is normal when the change speed solenoid is not abnormal; determining that a belt pinch pressure solenoid is abnormal when the target speed ratio is substantially equal to a speed ratio γmin on a maximum speed-increase side and the target speed ratio is not substantially equal to an actual speed ratio; and determining that the belt pinch pressure solenoid is normal when the target speed ratio is substantially equal to the actual speed ratio. | 07-29-2010 |
20100191428 | SHIFT CONTROL DEVICE FOR VEHICULAR CONTINUOUSLY VARIABLE TRANSMISSION - In a shift control device for a vehicular continuously variable transmission with an arrangement in which a normal shift mode is switched to an acceleration shift mode in response to an acceleration demand, a shift control is performed to prevent deterioration to running performance due to a transition to the acceleration shift mode by increased running resistance such as ascending road running or the like against a driver will. | 07-29-2010 |