Hydraulic axial piston unit and method for controlling of a hydraulic axial piston unit

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United States of America Patent

PATENT NO 11946462
APP PUB NO 20210164501A1
SERIAL NO

16700407

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Importance

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Abstract

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Hydraulic axial piston unit having a rotational group for driving or being driven by a driving shaft, and a tiltable displacement element for adjusting the displacement volume of the rotational group. The rotational group includes a rotatable cylinder block in which working pistons are mounted reciprocally moveable in cylinder bores for conveying hydraulic fluid from an inlet port to an outlet port on a valve segment. At least two control ports are located on the valve segment each between the inlet port and the outlet port. The control ports can be brought sequentially in fluid connection with the cylinder bores when the cylinder block is rotating. At least one hydraulic fluid injector is connected fluidly to one control port, for sequentially injecting pressurized hydraulic fluid via the control port into the passing cylinder bores. Via the other control port hydraulic fluid can be drained from passing cylinder bores.

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Patent Owner(s)

Patent OwnerAddress
DANFOSS POWER SOLUTIONS INC2800 EAST 13TH STREET AMES IA 50010

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Evans, Phil Ames, US 6 24
Greene, Dennis Ames, US 2 5
Hall, Samuel Ames, US 3 7
Tvaruzek, Jaromir Ames, US 8 13

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