Controller for hydraulic pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11441549
APP PUB NO 20170306936A1
SERIAL NO

15518377

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A hydraulic pump (6) comprising: a housing (20) having first and second inlets (100a, 100b) and first and second outlets (102a, 102b); a crankshaft (4) extending within the housing (20) and having axially offset first and second cams (62, 64); first and second groups (30, 32) of piston cylinder assemblies provided in the housing (20), each of the said groups (30, 32) having a plurality of piston cylinder assemblies having a working chamber of cyclically varying volume and being in driving relationship with the crankshaft (4); one or more electronically controllable valves (40) associated with the first and second groups (30, 32); and a controller (70) configured to actively control the opening and/or closing of the said electronically controllable valves (40) on each cycle of working chamber volume to thereby control the net displacement of fluid by the first and second groups (30, 32), wherein at least the first group (30) comprises a first piston cylinder assembly in driving relationship with the first cam (62) and a second piston cylinder assembly in driving relationship with the second cam (64), and wherein the first group is configured to receive working fluid from the first inlet (100a) and to output working fluid to the first outlet (102a) and the second group is configured to receive working fluid from the second inlet (100b) and to output working fluid to the second outlet (102b).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DANFOSS POWER SOLUTIONS GMBH & CO OHG24539 NEUMÜNSTER
ARTEMIS INTELLIGENT POWER LTDLOANHEAD MIDLOTHIAN EH20 9TB

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dole, Alexis Midlothian, GB 9 74
Kuttler, Onno Groß Buchwald, DE 11 159
Stein, Uwe Bernhard Pascal Midlothian, GB 33 297

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