Differential apparatus
AssigneeTochigi Fuji Sangyo Kabushiki Kaisha
InventorsKenji Hiraishi, Shingo Saeki, Kazuyuki Yamazaki, Takao Nakajima
Life of this patent
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Abstract
A differential apparatus includes a differential casing (21) rotated by an engine drive power; pinion gears (51, 53) slidably and rotatably accommodated in accommodating holes (47, 49) formed in the differential casing (21); a pair of side gears (31, 33) linked with each other via the pinion gears, for transmitting the engine drive power to vehicle wheels differentially; and device (69, 73, 81, 91, 99, 101, 103, 107, 109) for supplying lubricant to sliding surfaces between inner walls of the accommodating holes and the pinion gears.
Claims6
A differential apparatus, comprising:
- a differential casing rotated by an engine drive power;
- pinion gears slidably and rotatably accommodated in accommodating holes formed in said differential casing;
- a pair of side gears linked with each other via said pinion gears, for transmitting the engine drive power to vehicle wheels differentially;
- and
- means for supplying lubricant to sliding surfaces between inner walls of the accommodating holes and said pinion gears, said means including oil grooves formed into a mesh pattern at tooth crests of said pinion gears.
Dependencies are inferred from the claim text.