Hydraulic transaxle apparatus for a four-wheel driving...

Details Hydraulic transaxle apparatus for a four-wheel driving... Hydraulic transaxle apparatus for a four-wheel driving...

2005-01-25

2005-01-25

Lerner, Avraham (Department: 3611)

Motor vehicles

Having four wheels driven

With means for steering all driven wheels

C180S378000, C091S487000, C060S468000

Reexamination Certificate

active

06845837

ABSTRACT:
An articulated vehicle with a working device has a first frame having a prime mover mounted thereon and supporting a first transaxle apparatus. The first transaxle apparatus includes an input shalt receiving power from the prime mover, a pair of first axles, and a hydrostatic transmission. The hydrostatic transmission comprises a variable hydraulic pump, a first hydraulic motor fluidly connected to the hydraulic pump via a fluid passage, and a housing with a port fluidly connected to the fluid passage. The second transaxle apparatus includes a pair of second axles having different lengths and a second hydraulic motor. The second hydraulic motor is fluidly connected to the port. Proximal ends of the first and second frames with respect to the vehicle are coupled to each other so that the first and second flames are rotatable around a vertical axis relative to each other when steered.

REFERENCES:
patent: 6212887 (2001-04-01), Takada
patent: 6231466 (2001-05-01), Thoma et al.
patent: 6401869 (2002-06-01), Iida et al.
patent: 6619038 (2003-09-01), Takada et al.
patent: 6682453 (2004-01-01), Okada et al.
patent: 6691512 (2004-02-01), Kopel et al.
patent: 2000-270651 (2000-10-01), None

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