摘要:
An antioxidant agent capable of easily enhancing the intake of ORAC (Oxygen Radical Absorbance Capacity) is proposed. The antioxidant agent includes tealeaf as an active ingredient for enhancing ORAC. The tealeaf is preferably plucked from tea Camellia sinensis, decaffeinated or in a powdery form having a median diameter equal to or less than 50 μm. A beverage using such antioxidant agent is also proposed.
摘要:
An ethylene polymer which is useful for molding inflation film having a particularly excellent moldability is provided. The ethylene polymer is obtainable by the first and second steps and satisfying the following conditions (a) to (d): (a) the polymer produced in the first polymerization step having an weight average molecular weight (Mw,.sub.1) in the range of 6.times.10.sup.5 to 4.times.10.sup.6 ; (b) the ratio (Mw,.sub.2 /Mw,.sub.1) of the weight average molecular weight of the polymer produced in the first polymerization step (Mw,.sub.1) and the weight average molecular weight of the polymer produced in the second polymerization step (Mw,.sub.2) being in the range of 0.7 to 1.4; (c) the molecular weight in which the integration fraction from the low molecular weight is equal to 1/2 of the weight fraction (W.sub.2) of the polymer produced in the second polymerization step being in the range of 5.times.10.sup.3 to 3.times.10.sup.4 ; and (d) the weight fraction (W.sub.1) of the polymer produced in the first step being in the range of 0.45 to 0.70, and the weight fraction (W.sub.2) of the polymer produced in the second step being in the range of 0.30 to 0.55.
摘要:
A planetary gear device including a first gear, a second gear, a carrier, and composite planetary gears each having a large- and a small-diameter pinion that are formed integrally with each other and arranged in the axial direction. The composite planetary gears are mounted rotatably on respective pinion shafts such that the composite planetary gears are axially movable over predetermined distances due to axial plays, and the pinion shafts are supported by the carrier such that the pinion shafts are disposed around an axis of the carrier. The pinions of the composite planetary gears mesh with the first and second gears, respectively. Each of the first and second gears and the pinions consists of a helical gear whose teeth have a helix angle with respect to the axis. The large-diameter and small-diameter pinions have the same direction of helix and the same amount of lead.
摘要:
A vehicle oil pump that is driven by a drive gear provided on a rotating shaft that rotates in one direction when a vehicle travels forward and rotates in the opposite direction when the vehicle travel backward includes a first driven gear that is in mesh with the drive gear and provided on a drive shaft of the vehicle oil pump via a first one-way clutch, an idler gear that is in mesh with the drive gear, and a second driven gear that is in mesh with the idler gear and provided on the drive shaft of the vehicle oil pump via a second one-way clutch. The first one-way clutch is configured to transmit rotation of the first driven gear to the drive shaft when the vehicle travels in one direction, from among forward and backward, and the second one-way clutch is configured to transmit rotation of the second driven gear to the drive shaft when the vehicle travels in the other direction, from among forward and backward.
摘要:
A vehicle oil pump that is driven by a drive gear provided on a rotating shaft that rotates in one direction when a vehicle travels forward and rotates in the opposite direction when the vehicle travel backward includes a first driven gear that is in mesh with the drive gear and provided on a drive shaft of the vehicle oil pump via a first one-way clutch, an idler gear that is in mesh with the drive gear, and a second driven gear that is in mesh with the idler gear and provided on the drive shaft of the vehicle oil pump via a second one-way clutch. The first one-way clutch is configured to transmit rotation of the first driven gear to the drive shaft when the vehicle travels in one direction, from among forward and backward, and the second one-way clutch is configured to transmit rotation of the second driven gear to the drive shaft when the vehicle travels in the other direction, from among forward and backward.
摘要:
A drive apparatus for an electric vehicle comprises a motor (1), a gear section (9) for transmitting rotation of a rotor shaft (2) of the motor to a wheel, and a case (10, 90) for accommodating the motor and the gear section. The case has a partition (12) that separates a motor chamber (m) for accommodating the motor and a gear chamber (g) for accommodating the gear section, and the partition has an orifice (53) that connects a lower portion of the motor chamber and the gear chamber. Supplying means (5) is provided for supplying oil from the gear chamber into the motor chamber in accordance with rotation of the gear section. Through the operation of the orifice, oil gathers in a lower portion of the motor chamber and, thus, the motor chamber serves as a reservoir. Thus, while employing a light-weight and compact-size construction that does not comprise an oil reservoir, the drive apparatus secures a sufficient amount of lubricating oil during stop of the vehicle, and reduces the stirring loss of the gear section and cools the motor with oil during the running of the vehicle.
摘要:
A motor vehicle power transmission system whose rotating elements are all stopped upon stopping of the vehicle, and which comprises a lubricating device including an oil sump for storing a lubricating oil and a mechanically operated oil pump which is driven by one of the rotating elements to deliver the pressurized lubricating oil to predetermined lubricating points such as bevel gears of a differential gear device. The lubricating device has a substantially fluid-tight enclosure in which the lubricating points are disposed and which stores, in a substantially fluid-tight manner, a mass of the lubricating oil delivered from the oil pump.
摘要:
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.
摘要:
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.
摘要:
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.