Resources Contact Us Home
Auxiliary gearbox for motor vehicles

Image Number 3 for United States Patent #4821591.

The invention relates to a planetary gear type auxiliary gearbox intended to be inserted between a main gearbox and a transmission to the driving wheels in a motor vehicle. The input shaft of the planetary gear is rigidly connected to a sun wheel, while the output shaft of the planetary gear is rigidly connected to a planet wheel carrier carrying a plurality of planet wheels meshing with the sun wheel.The planetary gear further includes a clutch ring non-rotatably connected to the gearbox housing and a clutch ring non-rotatably connected to the input shaft. The invention is distinguished in that the ring gear of the planetary gear is formed with engagement teeth at its axial ends, in that the clutch rings are arranged on either side of the planet wheels and in that the ring gear is axially movable to enable alternative engagement with the clutch rings by its engagement teeth. The invention results in favorable load distribution with regard to both torque and bending stresses. In addition, there is obtained a simple structure which allows the gearbox to be formed such that its length is comparatively short.

  Recently Added Patents
Instantaneous single click perpetual date mechanism
Intraoral camera for dental chairs
Battery loading and unloading mechanism
Magnetic memory element, driving method for same, and nonvolatile storage device
Protein kinase C inhibitors and uses thereof
Lighting fixture
  Randomly Featured Patents
Reproducing apparatus for accessing track segments in the forward and reverse directions
Apparatus and method for bonding multiple dice
Vehicular impact protection device
Apparatus for cutting and shaping material
Apparatus for monitoring pipetting operations
CCD image pickup apparatus with digital synthesized video output signal
Method of enhancing cyclotron beam intensity
Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
Method of pretreatment and anisotropic dry etching of thin film semiconductors
Process for manufacturing an electro-mechanical grating device