Planetary gear for automatic transmission

Details Planetary gear for automatic transmission Planetary gear for automatic transmission

2006-04-11

2006-04-11

Pang, Roger (Department: 3681)

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Carrier braked

C475S159000, C475S210000

Reexamination Certificate

active

07025704

ABSTRACT:
In a planetary gear unit for an automatic transmission, notches that are longer than the diameter of a pinion are formed in a brake hub that is integral with a carrier cover. Lubricating oil holes are formed in the carrier cover so as to extend from the inner cylindrical surface thereof to the respective notches. The pinion is inserted through one of these notches for mounting between the carrier cover and the carrier body integrated therewith. Oil flowing from the lubricating oil holes lubricates pinion support surfaces and the like and is then supplied through the notches to a reverse brake.

REFERENCES:
patent: 2544543 (1951-03-01), Porter
patent: 4380179 (1983-04-01), Kubo et al.
patent: 5052991 (1991-10-01), Yamaguchi et al.
patent: 5480361 (1996-01-01), Murakami et al.
patent: 5607371 (1997-03-01), Yamaguchi
patent: 6059682 (2000-05-01), Friedmann et al.
patent: 6488137 (2002-12-01), Katou et al.
patent: 6702711 (2004-03-01), Zelikov et al.
patent: 6824494 (2004-11-01), Yasuda et al.
patent: 6-221384 (1994-08-01), None

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