Hydraulic axle-drive device

Details Hydraulic axle-drive device Hydraulic axle-drive device

2004-08-13

2008-10-07

Restifo, Jeffrey J (Department: 3618)

Motor vehicles

Power

Including traction motor of kind driven by noncompressible...

C180S308000

Reexamination Certificate

active

07431122

ABSTRACT:
A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and30R), supporting respective left and right travel wheels (1L and1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

REFERENCES:
patent: 3209538 (1965-10-01), Kuze
patent: 5277270 (1994-01-01), Hasegawa
patent: 6126564 (2000-10-01), Irikura et al.
patent: 6135231 (2000-10-01), Reed
patent: 6189641 (2001-02-01), Azuma
patent: 6196348 (2001-03-01), Yano et al.
patent: 6237708 (2001-05-01), Kawada
patent: 6336513 (2002-01-01), Hasegawa et al.
patent: 6554085 (2003-04-01), Hasegawa et al.
patent: 6648094 (2003-11-01), Abend et al.
patent: 6672058 (2004-01-01), Langenfeld et al.
patent: 6860354 (2005-03-01), Hasegawa
patent: 6877573 (2005-04-01), Hasegawa
patent: 6926111 (2005-08-01), Irikura
patent: 6964310 (2005-11-01), Hasegawa
patent: 7082759 (2006-08-01), Tsukamoto et al.
patent: 2002/0027025 (2002-03-01), Kobayashi et al.
patent: 2005/0070390 (2005-03-01), Irikura et al.
patent: 2006/0042839 (2006-03-01), Iwaki et al.
patent: 2006/0278459 (2006-12-01), Iwaki et al.
patent: 0 893 296 (1999-01-01), None
patent: 1 354 560 (1974-05-01), None
patent: 2 306 420 (1997-05-01), None
patent: 55-132325 (1980-10-01), None
patent: 2001-178208 (2001-07-01), None
Supplemental Partial European Search Report for European Appl. No. 0378 6289, European Patent Office, Munich, mailed on Apr. 4, 2006, 8 pages.
English language abstract for JP 55-132325, Patent Abstracts of Japan, Japanese Patent Office.

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