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1. WO2020003190 - ATTENUATION DEVICE FOR THE FLUID FLOW PULSATION IN A HYDRAULIC CIRCUIT CONNECTED WITH A HYDRAULIC MACHINE

Publication Number WO/2020/003190
Publication Date 02.01.2020
International Application No. PCT/IB2019/055446
International Filing Date 27.06.2019
IPC
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
21
Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
L
PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
55
Devices or appurtenances for use in, or in connection with, pipes or pipe systems
02
Energy absorbers; Noise absorbers
027
Throttle passages
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
39
Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/-F04B37/225
F15B 21/00 (2006.01)
F16L 55/027 (2006.01)
F04B 39/00 (2006.01)
CPC
F04B 11/0091
F04B 39/0066
F15B 21/008
F15B 2211/8613
F15B 2211/8616
F16L 55/02736
Applicants
  • STEM NUMERICAL ENGINEERING S.R.L. [IT/IT]; Via Del Carmine, 23 41100 Modena, IT
Inventors
  • MORSELLI, Mario Antonio; IT
Agents
  • FRASSON, Luca; IT
Priority Data
10201800000676828.06.2018IT
Publication Language English (EN)
Filing Language Italian (IT)
Designated States
Title
(EN) ATTENUATION DEVICE FOR THE FLUID FLOW PULSATION IN A HYDRAULIC CIRCUIT CONNECTED WITH A HYDRAULIC MACHINE
(FR) DISPOSITIF D'ATTÉNUATION POUR LA PULSATION D'ÉCOULEMENT DE FLUIDE DANS UN CIRCUIT HYDRAULIQUE RELIÉ À UNE MACHINE HYDRAULIQUE
Abstract
(EN)
The present invention concerns an attenuation device (1) of the fluid flow pulsation along a duct of a hydraulic circuit connected with a hydraulic machine, comprising at least an attenuation module (3) passed through by a pass-through duct (5) configured to be placed in fluid communication with said duct of said hydraulic circuit. In particular, in said attenuation module (3) a first duct (7) is obtained having an opened first end (70) in fluid communication with said pass-through duct (5), and a closed second end, said first duct (7) extending along a curved line comprising a plurality of curved sections, said first duct (7) being adapted to attenuate the pulsation of said fluid flow along said duct of said hydraulic circuit to reduce the vibrations generated by said pulsation of said fluid flow.
(FR)
La présente invention concerne un dispositif d'atténuation (1) de la pulsation d'écoulement de fluide le long d'un conduit d'un circuit hydraulique relié à une machine hydraulique, comprenant au moins un module d'atténuation (3) traversé par un conduit de passage (5) conçu pour être mis en communication fluidique avec ledit conduit dudit circuit hydraulique. En particulier, dans ledit module d'atténuation (3), un premier conduit (7) est obtenu ayant une première extrémité ouverte (70) en communication fluidique avec ledit conduit de passage (5) et une seconde extrémité fermée, ledit premier conduit (7) s'étendant le long d'une ligne incurvée comprenant une pluralité de sections incurvées, ledit premier conduit (7) étant conçu pour atténuer la pulsation dudit écoulement de fluide le long dudit conduit dudit circuit hydraulique pour réduire les vibrations générées par ladite pulsation dudit écoulement de fluide.
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