Patent application number | Description | Published |
20090170649 | POWER SPLIT DUAL INPUT SHAFT TRANSMISSION FOR VEHICLE - A vehicle transmission includes at least two driving shafts to which power is transmitted from a power source, a driven shaft to which power is transmitted from the driving shafts, drive transmission mechanisms disposed between the driving shafts and the driven shaft, and a switching mechanism that selectively enables power transmission via the drive transmission mechanisms. The driving shafts are disposed concentrically and fitted rotatably relative to each other. The driving shafts are parallel to the driven shaft. A first drive unit is disposed coaxially with the driving shafts. A second drive unit is disposed coaxially with the driven shaft. The first and second drive units are interconnected so as to send and receive powers changed in energy form to and from each other. The transmission thus constructed is excellent in power transmission efficiency, quietness, vehicle mountability, etc., and can realize continuously variable speed change. | 07-02-2009 |
20100108453 | POWER TRANSMISSION APPARATUS - A power transmission apparatus includes a drive roller and a driven roller made of magnetic material, which are rotatable about different axes, and which are provided with a gap therebetween, a case enclosing the rollers, an input shaft and an output shaft connected coaxially with the rollers through the case, respectively, and a magnetic fluid housed in the case to fill the gap. The apparatus includes an electromagnetic coil for generating magnetism, and a magnetic path of the magnetism generated by the electromagnetic coil is formed so that a magnetic field is generated from the drive roller or the driven roller toward the driven roller or the drive roller via the gap. | 05-06-2010 |
20110046861 | HYDRAULIC CONTROL APPARATUS - A switching apparatus is provided in a hydraulic control apparatus having a fluid transmission apparatus; a lockup clutch; a switching valve that controls engagement of the lockup clutch; and a control oil pressure generation apparatus that pressurizes oil and outputs a control oil pressure to control activation of the switching valve. The switching apparatus executes a control to warm the oil input into the control oil pressure generation apparatus if the temperature of the oil is below a predetermined temperature and prohibits execution of the control to warm the oil input into the control oil pressure generation apparatus if the temperature of the oil equals or exceeds the predetermined temperature. | 02-24-2011 |
20110127133 | TWIN-CLUTCH DEVICE - A twin-clutch device that selectively transmits torque from a driving wheel to a first driven wheel and/or a second driven wheel is provided. The first and second driven wheels are arranged respectively on both sides of the driving wheel, a functional fluid that decreases its flowability as an applied stimulus is increased and that increases its flowability as the applied stimulus is reduced fills gaps between the driving wheel and the first and second driven wheels, the driving wheel includes a stimulus generating member electrically controlled to generate a stimulus, and flowability of the functional fluid between the driving wheel and one of the first and second driven wheels is decreased with an increase in stimulus applied to the functional fluid by the stimulus generating member to couple the driving wheel to the one of the first and second driven wheels, thus allowing torque transmission therebetween. | 06-02-2011 |
20120024392 | LUBRICATING DEVICE - This lubricating device | 02-02-2012 |
Patent application number | Description | Published |
20100327210 | Control valve body of automatic transmission and manufacturing method therefor - By pouring, by means of pressure, melted liquid of magnesium or magnesium alloy into a hollow portion which is formed using a casting mold, a valve body where a channel groove for hydraulic oil for use in a speed change operation of the automatic transmission is formed. In the above, the channel grove for the hydraulic oil is formed due to a convex portion which is formed on the mold so as to project into the hollow portion. As the magnesium has small heat capacity, variation of the temperature of the mold during the cooling and heating cycle can be suppressed. Moreover, as the magnesium melted liquid has no reactivity with respect to the casting mold, the convex portion is not deteriorated. This allows employment of a mold having a thinner convex portion formed thereon, and therefore formation of a valve body having a narrower channel groove. | 12-30-2010 |
20110230297 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes: first and second rotating elements that has a common first rotation axis; a planetary ball that is rotatably supported by a support shaft having a second rotation axis separate from the first rotation axis, and is sandwiched between the first rotation member and the second rotating member such that torque transmission is possible between them; grooves, etc., that permit change in a rotation ratio between the first and second rotating members by tilting and rolling the planetary ball; an inclined surface that pushes the support shaft in a direction opposite to the direction of tilt of the support shaft in accordance with spin moment occurring at the planetary ball when moving in an axial direction; and a thrust force transmitting section, such as a movable shaft, etc., by which radial thrust force applied from the planetary ball is transmitted to the inclined surface based on spin moment occurring at the planetary ball. | 09-22-2011 |
20120025644 | ELECTRIC MOTOR HAVING SPEED CHANGE FUNCTION - An electric motor having a speed change function is configured to differentiate a rotational speed of a rotor from a rotational speed of an output shaft outputting a torque transmitted from the rotor. The electric motor includes: a stator coil arranged on an inner circumferential face of a cylindrical outer case; a cylindrical rotor which is arranged in an inner circumferential side of the stator coil, and which is adapted to generate a torque by receiving a magnetic force generated by the stator coil; and a continuously variable transmission mechanism, which is arranged in an inner circumferential side of the rotor, and which is adapted to continuously vary a ratio between a rotational speed of an input member connected with the rotor, and a rotational speed of an output member connected with the output shaft and rotated by the torque from the input member. | 02-02-2012 |
20120035015 | SPEED CHANGE CONTROL SYSTEM FOR TRANSMISSION OF VEHICLE - To provide a control system for carrying out a speed change operation of a geared transmission mechanism continuously by controlling a continuously variable transmission mechanism. | 02-09-2012 |
20120231925 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable tranmission having a continuously variable transmission mechanism for transmitting torque between an input side and an output side by means of frictional forces generated by pushing the input disc and the output disc against the planetary balls and continuously varying a transmission gear ratio between the input side and the output side includes a second group of helical gears capable of generating a first axial force for pushing the input disc toward the output disc a first group of helical gears capable of generating a second axial force for pushing the output disc toward the input disc, and a thrust bearing and a central shaft for transmitting, when an opposite force in such a direction as to move the input disc away from the output disc and opposite force to the first force is generated on a side of the input disc, the opposite force to the output disc. | 09-13-2012 |
20120244990 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes a continuously variable transmission mechanism that includes an input disk, an output disk, and planetary balls sandwiched between them and that steplessly changes a transmission ratio between the input disk and the output disk by tilting the planetary balls, wherein cooling performance of a cooling device for the continuously variable transmission mechanism is enhanced as the transmission ratio becomes larger than 1 or smaller than 1. | 09-27-2012 |
20120244991 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission having a continuously variable transmission mechanism including an input member, an output member, and a rotary member sandwiched therebetween, transmitting torque between the input member and the output member by means of frictional forces generated by pushing the input member and the output member against the rotary member, and continuously varying a transmission gear ratio between the input member and the output member, an axial force generating portion which rotates in one direction to generate a first axial force for pushing one of the input member and the output member toward the other and rotates in the other direction to generate a second axial force opposite to the first force, and an opposite axial force transmitting portion for transmitting the second force to the other of the input member and the output member when the axial force generating portion generates the second force. | 09-27-2012 |
20120322609 | POWER TRANSMISSION DEVICE - A power transmission device includes first and second rings arranged opposite each other, having a common rotation center axis, and rotatable relative to each other; a plurality of planetary balls having rotation center axes parallel to the rotation center axis, and radially arranged between the first and second rings and around the rotation center axis; a transmission control unit configured to change a rotation ratio between the first and second rings by changing the respective contact points of the first and second rings and each of the planetary balls through tilting motion of each of the planetary balls; and a rotation restricting unit disposed between the planetary balls adjacent to each other. | 12-20-2012 |
20130019712 | ENGINE START CONTROL DEVICE OF HYBRID VEHICLE - In an engine start control device of a hybrid vehicle including a power dividing mechanism which has a sun roller, a carrier, and a first disc with which a rotating shaft of a first motor/generator, an output shaft of an engine, and an output shaft of a second motor/generator are coupled, respectively and by which differential rotating operations between the sun roller, the carrier, and the first disc are controlled using an alignment chart on which rotation speeds of the sun roller, the carrier, and the first disc are disposed in the sequence of the sun roller, the carrier, the first disc and shown by straight lines. | 01-24-2013 |
20130024062 | DRIVE CONTROL DEVICE OF HYBRID VEHICLE - In a drive control device of a hybrid vehicle including a power dividing mechanism which has a sun roller, a carrier, and a first disc with which a rotating shaft of a first motor/generator, an output shaft of an engine, and a rotating shaft of a second motor/generator which also functions as an output shaft directed toward drive wheel sides are coupled, respectively and by which differential rotating operations between the sun roller, the carrier, and the first disc are controlled using an alignment chart on which rotation speeds of the sun roller, the carrier, and the first disc are disposed in the sequence of the sun roller, the carrier, the first disc and shown by straight lines. | 01-24-2013 |
20140011629 | CONTINUOUSLY VARIABLE TRANSMISSION - Provided with first and second rotational members, a sun roller, a plurality of planetary balls sandwiched between the first and second rotational members, a support shaft of each of the planetary balls, a shaft, a carrier, an iris plate and a worm gear for tilting each of the planetary balls, and an input shaft and an output shaft individually fixed to the first and second rotational members, respectively, in which a movable amount of the sun roller relative to the carrier in an axis line direction is set to be smaller than the movable amount of the second rotational member relative to the carrier in the axis line direction when the input shaft is arranged so as to be relatively rotatable on an outer peripheral surface of the output shaft. | 01-09-2014 |
20140028031 | POWER TRANSMISSION DEVICE - During an inertial energy storage operation, electric power conversion at an inverter is controlled such that a direct current electric power from an electric power storage device is converted into an alternating current by the inverter so as to be supplied to stator windings, such that torque in the direction of engine rotation is applied to an output side rotor from a stator to rotatively drive the output side rotor in a state where power transmission from the output side rotor to a drive axle is stopped. During a cranking operation after the inertial energy storage operation, the electric power conversion at an inverter is controlled to permit application of the alternating current to rotor windings, such that a torque in the direction of engine rotation is applied to an input side rotor from the output side rotor, thereby rotatively driving an input side rotor to crank the engine. | 01-30-2014 |
20140094339 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes a plurality of planetary balls interposed between a first and second rotating elements on a shaft, an iris plate and a worm gear that tilt the planetary balls, a sun roller that includes a first sun roller that includes a first tubular section having first contact points with the planetary balls and a second tubular section having a smaller outer diameter than the first tubular section and is capable of relative rotation with respect to the shaft and a second sun roller that includes second contact points with the planetary balls and is capable of relative rotation with respect to the first sun roller on an outer peripheral surface of the second tubular section, and thrust bearings that are arranged between the first sun roller and the second sun roller and bear thrust loads transmitted from the planetary balls to the first sun roller and the second sun roller. | 04-03-2014 |
20140197716 | ROTATING ELECTRIC MACHINE AND POWER TRANSMISSION DEVICE (AS AMENDED) - Provided is a compound motor ( | 07-17-2014 |
20140235401 | CONTINUOUSLY VARIABLE TRANSMISSION - A continuously variable transmission includes plural planetary balls, a carrier, a sun roller, an input shaft, an output shaft, and thrust bearings sandwiched between respective holding surfaces of the input shaft and the output shaft, wherein the holding surface at a time of rest is formed such that a space between the holding surface and a race on one side of the thrust bearing becomes wider on an outside in a radial direction than on an inside in the radial direction, and the holding surface at the time of rest is formed such that a space between the holding surface and a race on the other side of the thrust bearing becomes wider on the outside in the radial direction than on the inside in the radial direction. | 08-21-2014 |
20140326092 | TOOTHED WHEELS AND TRANSMISSION - A pair of toothed wheels that mesh with each other includes a plateau portion. The surface of the plateau portion is a plateau-structure surface formed on each tooth face of each of the pair of the toothed wheels, with peak portions of convexities, out of a plurality of concavities and the convexities provided on the each tooth face, being flat. A reduced valley depth Rvk of the plateau portion of one of the pair of the toothed wheels as defined in JISB0671-2 is greater than the reduced valley depth Rvk of the plateau portion of the other of the pair of the toothed wheels. The area occupied by the concavities in the plateau portion of the one of the toothed wheels is larger than the area occupied by the concavities in the plateau portion of the other toothed wheel. | 11-06-2014 |
20150014073 | DRIVE UNIT FOR VEHICLE - A drive unit for a vehicle includes: an engine ( | 01-15-2015 |
20150288256 | COOLING STRUCTURE FOR SLIP RING DEVICE - There is provided a cooling structure whose performance for cooling ring members and brushes is enhanced. In a cooling structure applied to a slip ring device including ring members provided to an input shaft and brushes contacting with these ring members, the input shaft includes a shaft member where an external spline portion is formed, and a cylindrical member that is installed over the external circumference of the shaft member so that an internal spline portion formed on the cylindrical member is meshed with the external spline portion, and that the ring members are fixed to the cylindrical member. The internal spline portion is formed upon a portion of the inner circumferential surface of the cylindrical member that lies on the radially inward side of the ring members. | 10-08-2015 |
20150314772 | POWER TRANSMISSION DEVICE - When a drive shaft ( | 11-05-2015 |
20160101773 | DRIVE CONTROL SYSTEM FOR HYBRID VEHICLE - A drive control system for preventing damage from a power distribution device under a motor mode and for improving fuel efficiency. A time duration from termination of the first operating mode where a torque of the first motor is applied to the power distribution device while halting a carrier (at step S | 04-14-2016 |
Patent application number | Description | Published |
20110256685 | METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE - A film structure including at least one film is formed on a face of a semiconductor substrate and then a first mask with a pattern is formed on the film structure. A second mask is formed so as to cover the first mask over a bevel region. The film structure is etched using the first and second masks and thereafter the remaining first and second masks are removed away. | 10-20-2011 |
20110277508 | MANUFACTURING METHOD OF GLASS BLANK FOR MAGNETIC RECORDING GLASS SUBSTRATE, MANUFACTURING METHOD OF MAGNETIC RECORDING GLASS SUBSTRATE AND MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM - Provided is a method of manufacturing a glass blank for a magnetic recording medium glass substrate, including: manufacturing a glass blank by at least press molding a falling molten glass gob with a pair of press molds both so as to face each other in a direction perpendicular to a direction in which the molten glass gob falls, in which: the molten glass gob is formed of a glass material having a glass transition temperature of 600° C. or more; and when the press molding is carried out so that the molten glass gob is completely extended by pressure and molded into a flat glass between press-molding surfaces of the pair of press molds, at least a region in contact with the flat glass in each of the press-molding surfaces of the pair of press molds forms a substantially flat surface. Also provided are a method of manufacturing a magnetic recording medium glass substrate and a method of manufacturing a magnetic recording medium each using the method of manufacturing a glass blank for a magnetic recording medium glass substrate. | 11-17-2011 |
20110283739 | METHOD FOR MANUFACTURING GLASS BLANK, METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM SUBSTRATE AND METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM - Provided are a method of manufacturing a glass blank, the method including press-molding a molten glass gob under a state in which a separation mark formed on an upper surface of the molten glass gob faces at least one of the molding surface sides of a pair of press molds arranged facing each other in a horizontal direction, when the molten glass gob falls into a space between the pair of press molds, and a method of manufacturing a magnetic recording medium substrate and a method of manufacturing a magnetic recording medium, both using the glass blank. | 11-24-2011 |
20120204601 | METHOD OF PRODUCING GLASS BLANK FOR SUBSTRATE OF INFORMATION RECORDING MEDIUM, SUBSTRATE FOR INFORMATION RECORDING MEDIUM, AND INFORMATION RECORDING MEDIUM; AND MANUFACTURING APPARATUS FOR GLASS BLANK FOR SUBSTRATE OF INFORMATION RECORDING MEDIUM - A method of manufacturing a glass blank for a substrate for an information recording medium, the method including steps of: cutting out a gob of a glass material from a molten glass material by cutting the molten glass material discharged from a glass material outlet at a predetermined timing; causing the gob of the glass material to fall downwardly; pinching and pressing the gob of the glass material by a press unit having a pair of molds, the molds' surfaces facing to each other being press surfaces which are planes without an unevenness, so as to contact the falling gob of the glass material only to the press surfaces; and forming a circular flat plate-shaped glass blank having a target flatness as a glass substrate for a magnetic disk such that a ratio between a diameter and a thickness of the glass blank is within a range of from 50:1 to 150:1, from the gob of the glass material. | 08-16-2012 |
20120247155 | METHOD OF MANUFACTURING GLASS BLANK FOR MAGNETIC RECORDING MEDIUM GLASS SUBSTRATE, METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM GLASS SUBSTRATE, METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM, AND APPARATUS FOR MANUFACTURING GLASS BLANK FOR MAGNETIC RECORDING MEDIUM GLASS SUBSTRATE - A method of manufacturing a glass blank for a magnetic recording medium glass substrate in which, after a pair of press molds placed so as to be opposed to each other in a horizontal direction with press-molding surfaces thereof and the temperatures of the press-molding surfaces being substantially the same are brought into contact with a molten glass gob substantially at the same time, press molding is carried out to produce plate glass and the plate glass continues to be pressed with the pair of molds, and then, when the plate glass is taken out, the duration time of pressing the plate glass is controlled so that the flatness of the glass blank is 10 μm or less, and a method of manufacturing a magnetic recording medium glass substrate, a method of manufacturing a magnetic recording medium, and an apparatus for manufacturing a glass blank for a magnetic recording medium glass substrate using the same. | 10-04-2012 |
20130042649 | MANUFACTURING METHOD OF A GLASS BLANK FOR MAGNETIC DISK AND MANUFACTURING METHOD OF A GLASS SUBSTRATE FOR MAGNETIC DISK - A manufacturing method of a glass blank for magnetic disk including a pair of principal surfaces, the method including: dropping process for dropping a lump of molten glass; pressing process for forming a sheet glass material by sandwiching simultaneously the lump from both sides of the dropping path of the lump with surfaces of the pair of dies facing together, and performing press forming to the lump; and temperature adjusting process for adjusting temperature of the lump before the pressing process such that viscosity variation of the lump is reduced with respect to positions over the entirety of the lump in the pressing process. | 02-21-2013 |
20130316194 | MANUFACTURING METHOD OF GLASS BLANK FOR MAGNETIC DISK, MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, GLASS BLANK FOR MAGNETIC DISK, GLASS SUBSTRATE FOR MAGNETIC DISK, AND MAGNETIC DISK - To provide a method for manufacturing a glass blank for magnetic disk and a method for manufacturing a glass substrate for magnetic disk, which are capable of producing a glass blank for magnetic disk having a good surface waviness by press forming, and a method for manufacturing a glass substrate for magnetic disk. A method for manufacturing a glass blank for magnetic disk, which includes a forming process of press-forming a lump of molten glass using a pair of dies, wherein in the forming process, press forming is performed using thermally equalizing means for reducing a difference in temperature in the press forming surface of the die during pressing of the molten glass. | 11-28-2013 |
20140050912 | GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK - A method for manufacturing a glass substrate for magnetic disk is provided. The method includes a forming process of press-forming a lump of molten glass using a pair of dies, wherein in the forming process, the cooling rate of the molten glass during pressing is controlled so that a first compressive stress layer is formed on a pair of principal faces of a glass blank that is press formed, and the method includes a chemically strengthening process for forming a second compressive stress layer on a pair of principal faces of a glass substrate formed using the glass blank after the forming process. | 02-20-2014 |
20140060117 | METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK - A method for manufacturing a glass substrate for magnetic disk, the internal strain of which is reduced without performing annealing treatment, is provided. The method includes a forming process of forming a plate-shaped glass blank by pressing a lump of molten glass using a pair of dies, wherein the method includes: a removing process of removing at least a part of a residual stress layer formed on the principal face of the glass blank press-formed in the forming process; and a process of forming a donut-shaped glass substrate by subjecting the glass blank after the removing process to machining. | 03-06-2014 |
20140065446 | METHOD FOR MANUFACTURING GLASS BLANK FOR MAGNETIC DISK, METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK, GLASS BLANK FOR MAGNETIC DISK - A method for manufacturing a glass blank for magnetic disk and a method for manufacturing a glass substrate for magnetic disk are provided which are capable of producing a glass blank for magnetic disk having a good surface waviness by press forming. The method includes a forming process of press-forming a lump of molten glass using a pair of dies, wherein in the forming process, press forming is performed using thermally equalizing means for reducing a difference in temperature in the press forming surface of the die during pressing of the molten glass. | 03-06-2014 |