Hydraulic system comprising a main pump and a precompression...

Details Hydraulic system comprising a main pump and a precompression... Hydraulic system comprising a main pump and a precompression...

2006-02-14

2006-02-14

Koczo, Jr., Michael (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Plural pumps with individual or relative control

C417S251000, C417S253000

Reexamination Certificate

active

06997685

ABSTRACT:
The invention relates to a hydraulic system (1) comprising a main pump (12) and a precompression pump (5), whereby the outlet (8) of the precompression pump (5) is connected by a connecting line (9) to the inlet (11) of the main pump (12). The outlet (16) of the main pump (12) can be connected by a working line (17) to a consumer (A, B). The volume flow at the inlet (11) of the main pump (12) is changeable. The aim of the invention is to achieve greater efficiency. The precompression pump (5) comprises an adjusting device (6) for adjusting the flow rate.

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patent: WO 99/61796 (1999-12-01), None

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