Hydrostatic vehicle drive system comprising a differential lock

Details Hydrostatic vehicle drive system comprising a differential lock Hydrostatic vehicle drive system comprising a differential lock

2007-02-20

2007-02-20

Lopez, F. Danile (Department: 3745)

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

C060S445000, C180S006480, C180S308000

Reexamination Certificate

active

10332162

ABSTRACT:
The invention relates to a hydrostatic vehicle drive system (1) comprising a first and a second hydraulic pump (2, 3), and a first and a second hydraulic motor (7, 12). Said hydraulic pumps (2, 3) and said hydraulic motors (7, 12) are coupled in such a way in a differential lock operation that a first connection (14) of the first hydraulic pump (2) is connected to a first connection (8) of the first hydraulic motor (7); a second connection (6) of the first hydraulic motor (7) is connected to a first connection (10) of the (10) of the second hydraulic pump (3); a second connection (9) of the second hydraulic pump (3) is connected to a first connection (13) of the second hydraulic motor (12); and a second connection (11) of the second hydraulic motor (12) is connected to a second connection (5) of the first hydraulic pump (2). The absorption volume of the first hydraulic motor (7) and the second hydraulic motor (12) can be respectively adjusted by means of an adjusting device (20, 21).

REFERENCES:
patent: 3650109 (1972-03-01), Freeman
patent: 4401182 (1983-08-01), Pollman
patent: 4481769 (1984-11-01), Nagahara
patent: 4554992 (1985-11-01), Kassai
patent: 6276468 (2001-08-01), Essig et al.
patent: 3346481 (1985-07-01), None
patent: 19833942 (2000-02-01), None
patent: 0226844 (1986-11-01), None

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