Hydraulic system with suction/return filter

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United States of America Patent

PATENT NO 9551362
APP PUB NO 20140230424A1
SERIAL NO

14346024

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention relates to a hydraulic system, preferably for piloting and actuating a two-cylinder thick matter pump. The hydraulic system comprises a tank (68) for receiving hydraulic oil, a primary circuit having at least one hydraulic consumer (AH, MH) which has at least one primary pump (36, 38, 61, 70), which is loaded with hydraulic oil via a first suction line (42), and is connected on the outlet side to at least one first return line, and which has a suction/return filter (40) which communicates with the first suction line (42) on the outlet side and is loaded on the inlet side with return oil from the at least one return line. A special feature of the invention consists in that the first suction line (42) communicates with the tank (68) via a separate replenishing suction line (86) and a suction filter (66), wherein a replenishing suction valve (88) which is preloaded in the direction of the suction filter (66) is arranged in the replenishing suction line (86).

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Patent Owner(s)

Patent OwnerAddress
PUTZMEISTER ENGINEERING GMBHMAX-EYTH-STR 10 72631 AICHTAL 72631

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Muenzenmaier, Werner Nuertingen, DE 7 38
Renz, Hans-Peter Filderstadt, DE 1 0
Stass, Markus Moeglingen, DE 1 0
Veit, Jan-Martin Reutlingen, DE 8 7

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