CLOSED-LOOP HYDRAULIC SYSTEM HAVING ENERGY RECOVERY

A hydraulic system (72) is disclosed. The hydraulic system may have a pump (80) with variable-displacement, a first linear actuator (26), and a second linear actuator (26) coupled to the first linear actuator to operate in tandem. The first and second linear actuators may be connected to the pump in...

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Bibliographic Details
Main Author KNUSSMAN, MICHAEL, L
Format Patent
LanguageEnglish
French
Published 04.04.2013
Subjects
BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
DREDGING
FIXED CONSTRUCTIONS
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
FOUNDATIONS
HEATING
HYDRAULIC ENGINEERING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
SOIL SHIFTING
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
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Summary:A hydraulic system (72) is disclosed. The hydraulic system may have a pump (80) with variable-displacement, a first linear actuator (26), and a second linear actuator (26) coupled to the first linear actuator to operate in tandem. The first and second linear actuators may be connected to the pump in closed-loop manner, and each of the first and second linear actuators may have a first chamber (52) and a second chamber (54) separated by a piston (50). The hydraulic system may also have an accumulator (112) in fluid communication with the second chamber of only the second linear actuator. L'invention concerne un système hydraulique (72). Le système hydraulique selon l'invention peut comporter une pompe (80) à débit variable, un premier actionneur linéaire (26) et un second actionneur linéaire (26) couplé au premier actionneur linéaire pour fonctionner en tandem. Les premier et second actionneurs linéaires peuvent être reliés à la pompe en boucle fermée et chacun d'eux peut comporter une première chambre (52) et une seconde chambre (54) séparées par un piston (50). Le système hydraulique peut également comprendre un accumulateur (112) en communication fluidique avec la seconde chambre du second actionneur linéaire uniquement.
Bibliography:Application Number: WO2012US56553