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  • Electromagnetic clutch
    Patent number: 4860867
    Abstract: An electromagnetic clutch for an automotive air conditioning system is disclosed which includes a rotor, an electromagnetic coil, and an armature plate. A boss is secured to a drive shaft and has a wave-shaped flange which is formed on the outer surface of the boss. A front plate is disposed forwardly of the wave-shaped flange of the boss through a ring-shaped washer of elastic material. A rear plate is disposed rearwardly of the wave-shaped flange of the boss through another ring-shaped washer of elastic material. The armature plate is connected to the boss, which connects the front plate and rear plate through the washers made of elastic material, respectively, through a plurality of leaf springs. When the above electromagnetic clutch is supplied with electric current, the rotational force in the direction opposite to the rotational force of the front plate and rear plate is added to the boss.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: August 29, 1989
    Assignee: Sanden Corporation
    Inventor: Kazuo Nishimura
  • Hydraulic power transmission apparatus
    Patent number: 4974472
    Abstract: A hydraulic power transmission apparatus for reducing the speed of rotation of output from a power source and changing the speed of rotation thereof at a given transmission ratio, includes an oil pump having a drive shaft to which the power from the power source can be applied, the oil pump being drivable by the power from the power source, a pair of oil motors having output shafts, respectively, and associated with a pair of axles, respectively, the oil motors being drivable by hydraulic pressure generated by the oil pump, a pair of speed reducer mechanisms disposed between the outupt shafts of the oil motors and the axles for reducing the speeds of rotation of the output shafts, respectively, and transmitting the rotation of the output shafts to the axles, respectively, an inner case having a closed space defined therein, the oil pump and the oil motors being housing in the closed space, and a transmission case having a transmission chamber defined therein, the inner case and the speed reducer mechanisms be
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: December 4, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Sadanori Nishimura, Horishige Makita
  • Automatic transmission control system for a vehicle having constant-speed cruising control system
    Patent number: 4913006
    Abstract: An automatic transmission control system for controlling an automatic transmision for use in a vehicle provided with a throttle control system which electrically controls a throttle valve to control the engine output according to the amount of depression of the accelerator pedal and a constant-speed cruising control system which makes the vehicle cruise at a desired constant speed includes a first gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a first gear-shifting pattern, which applies when the constant-speed cruising control is not performed, and in which the gear stages of the automatic transmission are related to the detected amount of depression of the accelerator pedal and the vehicle speed or a value corresponding to the vehicle speed, and a second gear-stage setting system which designates a gear stage of the automatic transmission on the basis of a second gear-shifting pattern, which applies when the constant-speed cruising control is performed
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: April 3, 1990
    Assignee: Mazda Motor Corporation
    Inventors: Toshiaki Tsuyama, Kazutoshi Nobumoto, Kaoru Sotoyama, Toshihiro Matsuoka, Eizi Nishimura
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