Center section for hydraulic transmission

Details Center section for hydraulic transmission Center section for hydraulic transmission

2006-05-09

2006-05-09

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Input pump and rotary output motor system having...

C060S487000

Reexamination Certificate

active

07040092

ABSTRACT:
A two piece center section assembly for mounting inside the housing of a hydrostatic drive apparatus is disclosed. The assembly includes separate pump and motor support portions where the check valve is formed between the two pieces. Fasteners extend through the two pieces and into the housing for the drive apparatus to secure the assembly thereto without the need for additional fasteners. The need for additional sealing material between the pump and motor portions can also be reduced by the use of raised portions on the mating surfaces between these two portions.

REFERENCES:
patent: 4903545 (1990-02-01), Louis et al.
patent: 5314387 (1994-05-01), Hauser et al.
patent: 5505279 (1996-04-01), Louis et al.
patent: 6122996 (2000-09-01), Hauser et al.
patent: 6301885 (2001-10-01), Johnson et al.
patent: 6715283 (2004-04-01), Abend et al.

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