Planetary gear unit

Patent · Tue Oct 07 04:00:00 EDT 1986

OSTI ID:5066088

Takahashi, S

This patent describes a planetary gear unit for the transmission of a motor vehicle, comprising: a first planetary gear unit which includes a pinion shaft, a planet pinion rotatably mounted on the pinion shaft, a sun gear engaging the planet pinion, and an arm member supporting the pinion shaft and having an extending portion extending to a point adjacent the sun gear; a thrust washer contacting the arm member, the thrust washer having radiating conduit means formed on a contacting surface thereof so as to communicate an inner circumference of the extending portion of the arm member with the pinion shaft, the pinion shaft having a conduit formed therein so as to communicate with the radiating conduit means with an inner surface of the planet pinion wherein the radiating conduit means further comprises uniform spaced bevel surfaces and grooves in communication with the bevel surfaces.

• Assignee: Aisin Seiki Kabushiki Kaisha, Kariya
• Patent Number(s): US 4615231
• OSTI ID: 5066088
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
DESIGN
GEARS
MACHINE PARTS
MECHANICAL STRUCTURES
MECHANICAL TRANSMISSIONS
MOTION
ROTATION
SHAFTS
SPACE DEPENDENCE
SUPPORTS
VEHICLES