Method of controlling a hydrostatic drive

Details Method of controlling a hydrostatic drive Method of controlling a hydrostatic drive

2011-01-18

2011-01-18

Lazo, Thomas E (Department: 3745)

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

C060S491000, C180S165000

Reexamination Certificate

active

07870727

ABSTRACT:
A method of controlling a hydrostatic drive is provided. The hydrostatic drive has a hydraulic pump and a hydraulic engine. The hydrostatic drive further has a first and a second hydraulic reservoir for storing and recuperating energy. Pressure energy is stored in the first reservoir. For the purpose of recuperating the pressure energy stored in the first reservoir, the first reservoir is connected to a suction side of the hydraulic pump. A downstream working line of the hydraulic engine is connected to the second reservoir. In addition, the downstream working-line connection of the hydraulic engine is disconnected from the suction side of the hydraulic pump.

REFERENCES:
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patent: 6971463 (2005-12-01), Shore et al.
patent: 395 960 (1993-04-01), None
patent: 29 49 337 (1980-06-01), None
patent: 1 433 648 (2004-06-01), None

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