Patent application number | Description | Published |
20110132141 | OIL PASSAGE STRUCTURE OF CHAIN-DRIVE OIL PUMP - An oil passage structure of a chain-driven oil pump includes three lines of oil passages for supplying oil from the center support to the torque converter, a first oil passage for supplying oil to the torque converter through the inside of an input shaft of the torque converter, a second oil passage for supplying oil to the torque converter through a space defined by the outer periphery surface of the input shaft and the inner periphery surface of a stator shaft, and a third oil passage for supplying oil to the torque converter by bypassing the drive sprocket. The third oil passage is provided on the outer periphery side of the drive sprocket and in a position where it does not interfere with the operation of a chain. Accordingly, it is possible to utilize the flex lock-up to a maximum extent, and to reduce the diameter of the sprocket. | 06-09-2011 |
20110203898 | VEHICLE POWER TRANSMISSION DEVICE - A vehicle power transmission device includes: a first power transmission member including a cylindrical shaft end portion rotatably supported via a first bearing on an inner circumferential side of a non-rotating support wall; and a second power transmission member supported on the inside of the cylindrical shaft end portion via a second bearing radially overlapping with the first bearing by the cylindrical shaft end portion to be rotatable concentrically and relatively to the first power transmission member, the second power transmission member including a circular disc gear portion protruded to an outer circumferential side at a predetermined distance from the second bearing in a shaft center direction of the second power transmission member, at a portion facing the first bearing, the gear portion having an annular inner circumferential guide protruding portion for guiding to the first bearing a lubricant oil that passes through the second bearing for lubrication, that enters into a gap between the second bearing and the gear portion, and that travels to the outer circumferential side due to the centrifugal force. | 08-25-2011 |
20110207570 | VEHICLE POWER TRANSMISSION DEVICE - A vehicle power transmission device includes: an input shaft; a planetary gear type speed reducer disposed concentrically to the input shaft to reduce and output rotation input to the input shaft; and a differential gear device disposed adjacently to the input shaft in a shaft center direction, the differential gear device being rotationally driven by the speed reducer to transmit a drive force to a pair of axles disposed on the shaft center while allowing a rotational difference between the axles, the speed reducer including a sun gear that is fit with a shaft end portion of the input shaft in a relatively non-rotatable manner, the sun gear being prevented from relatively moving toward the differential gear device by an annular snap ring fit and attached to an annular snap ring groove formed on an outer circumferential surface of the shaft end portion of the input shaft on the differential gear device side of the sun gear, the differential gear device including a differential case having a cylindrical end portion formed on the sun gear side or a member fixed thereto that is extended to the outer circumferential side of the snap ring, the differential case having a radial distance of an annular gap formed between the cylindrical end portion or the member fixed thereto and the snap ring set smaller than a groove depth of the snap ring groove. | 08-25-2011 |
20110297258 | HYDRAULIC CONTROL CIRCUIT OF VEHICULAR POWER TRANSMISSION APPARATUS - A hydraulic control circuit of a vehicular power transmission apparatus includes: a first passageway providing communication between a pump and a strainer; a second passageway providing communication between the pump and a feeding passageway; a third passageway interconnecting the first passageway and the second passageway; a first check valve being disposed between the strainer and a connecting point between the first passageway and the third passageway, and allowing the oil to flow from a strainer side to a pump side; a second check valve being disposed between the feeding passageway and a connecting point between the second passageway and the third passageway, and allowing the oil to flow from the second passageway to a feeding passageway side; and a third check valve being disposed in the third passageway, and allowing the oil to flow from the first passageway to a second passageway side. | 12-08-2011 |
20110315506 | OIL PUMP MOUNTING STRUCTURE - A mounting structure for mounting a separate shaft type oil pump in a case of a transmission. The separate shaft type oil pump is driven by a shaft that is separate from and rotated in cooperation with a shaft arranged in a torque input route extending from an engine to the transmission to supply hydraulic oil to a transmission oil pressure control mechanism. The mounting structure includes a spacer coupler that fastens the oil pump to the transmission case. The spacer coupler includes a plurality of spacers that couple the oil pump and the transmission case. An oil passage is formed in the spacers of the spacer coupler to connect an oil pressure system, which includes the oil pressure control mechanism, and the oil pump. A manual shaft for operating the transmission is arranged in a clearance between the spacers of the spacer coupler. | 12-29-2011 |
20120011841 | HYDRAULIC DEVICE FOR STEPLESS TRANSMISSION - A hydraulic device includes a switch-over valve | 01-19-2012 |
20120299419 | LUBRICATION STRUCTURE OF POWER TRANSMISSION APPARATUS - PROBLEM TO BE SOLVED: A lubrication structure of a power transmission apparatus is provided with a lubricating liquid transport pipe for cooling a rotating electrical machine used to allow a lubricated member positioned axially outwardly of the rotating electrical machine to be lubricated in the axial direction. | 11-29-2012 |
20130225356 | DIFFERENTIAL AND DIFFERENTIAL ASSEMBLY METHOD - A differential includes a pinion shaft holder, a differential case, a first side gear, a second side gear, a first spring and a second spring. The differential case includes a first side boss portion and a second side boss portion. The first spring is interposed between the first side boss portion and the first side gear. The second spring is interposed between the second side boss portion and the second side gear. A recessed portion is provided on the pinion shaft holder and is configured to avoid interference with an auxiliary tool. The auxiliary tool maintains one of the first spring and the second spring in the compressed state. | 08-29-2013 |
20130284559 | PARK LOCK FOR NARROW TRANSMISSION - A park lock of a transmission, including a park gear; a park pawl rotating about a pawl shaft, the park pawl having a pawl portion locking the park gear, the park pawl including a cam contact portion; a park rod responsive to an operation of a controller, the park rod having a cam portion pressing the cam contact portion to have park pawl engage the park gear; a park sleeve receiving the cam portion and defining a first contact point providing a reactive force to the cam contact portion of the park pawl pressing against the cam portion at a second contact point; a pawl torsional spring biasing the park pawl towards disengagement; and a pawl stopper limiting the rotation of the park pawl wherein motions are constrained within a plane of the transmission and components are rotatingly disposed in parallel axis bores in one half of a transmission case. | 10-31-2013 |
20140305114 | AUTOMATIC TRANSMISSION DEVICE FOR AUTOMOBILE - An automatic transmission device for an automobile includes a torque converter accommodated in a torque converter housing, a stator shaft supporting a stator of the torque converter, a torque converter housing, a stator shaft supporting a stator of the torque converter, a torque converter sleeve provided concentrically with the stator shaft and coupled with an inner periphery side of an impeller shell of the torque converter, a first bearing provided between an inner peripheral surface of the torque converter sleeve and an outer peripheral surface of the stator shaft, and a second bearing provided between an outer peripheral surface of the torque converter sleeve and an inner surface of the torque converter housing. | 10-16-2014 |