EP3273057B1 - Unité à déplacement positif et système marche/arrêt hydraulique comprenant une telle unité à déplacement positif - Google Patents

Unité à déplacement positif et système marche/arrêt hydraulique comprenant une telle unité à déplacement positif Download PDF

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Publication number
EP3273057B1
EP3273057B1 EP17172414.9A EP17172414A EP3273057B1 EP 3273057 B1 EP3273057 B1 EP 3273057B1 EP 17172414 A EP17172414 A EP 17172414A EP 3273057 B1 EP3273057 B1 EP 3273057B1
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EP
European Patent Office
Prior art keywords
displacement unit
fluid
engine
way valve
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17172414.9A
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German (de)
English (en)
Other versions
EP3273057A1 (fr
Inventor
Patrick Wohlhauser
Lennard GEISSLER
Yannick WEIDNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Machines Bulle SA
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Liebherr Machines Bulle SA
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Publication of EP3273057A1 publication Critical patent/EP3273057A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F02N7/06—Starting apparatus having fluid-driven auxiliary engines or apparatus the engines being of reciprocating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F02N7/08—Starting apparatus having fluid-driven auxiliary engines or apparatus the engines being of rotary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—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 F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1037—Flap valves
    • F04B53/1047—Flap valves the valve being formed by one or more flexible elements
    • F04B53/105—Flap valves the valve being formed by one or more flexible elements one flexible element oscillating around a fixed point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • F04B53/1017—Semi-spherical ball valves

Claims (14)

  1. Unité de déplacement (1), notamment une machine à pistons axiaux, comprenant :
    un boîtier (2),
    un moteur pour convertir la puissance rotative en puissance hydraulique et vice versa,
    un orifice d'aspiration (4) pour l'alimentation du moteur en fluide et une soupape unidirectionnelle (3), qui est disposée dans le boîtier (2) de l'unité de déplacement (1),
    caractérisée par
    un deuxième orifice (7) pour l'alimentation du moteur en fluide, dans lequel les trajets d'écoulement provenant de l'orifice d'aspiration (4) et du deuxième orifice (7) se rejoignent en aval en un trajet d'écoulement commun (8), et
    dans lequel la soupape unidirectionnelle (3) est disposée dans la zone située entre l'orifice d'aspiration (4) et le trajet d'écoulement commun (8) combiné.
  2. Unité de déplacement (1) selon la revendication 1, dans laquelle la soupape unidirectionnelle (3) est disposée dans le trajet d'écoulement entre l'orifice d'aspiration (4) et le moteur.
  3. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionnelle (3) est intégrée dans le boîtier (2) de l'unité de déplacement (1).
  4. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionnelle (3) est disposée dans un canal d'aspiration (5) d'une plaque de raccordement (6) de l'unité de déplacement (1).
  5. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la section transversale du trajet d'écoulement de l'orifice d'aspiration (4) diminue, de préférence diminue de manière continue, en direction du moteur, et la soupape unidirectionnelle (3) est disposée à une position du trajet d'écoulement où la section transversale du canal d'écoulement n'est pas maximale.
  6. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionnelle (3) est disposée dans le trajet d'écoulement à distance de l'orifice d'aspiration (4) en direction du moteur.
  7. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionnelle (3) est adaptée pour permettre au fluide de s'écouler uniquement en direction du moteur et pour minimiser ou empêcher le fluide de s'écouler dans la direction opposée.
  8. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionelle (3) est une soupape anti-retour ou une soupape à coulisse, de préférence une soupape anti-retour actionnée par haute pression.
  9. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle la soupape unidirectionnelle (3) est à débit optimisé et coopère avec un siège de soupape à débit optimisé (9).
  10. Unité de déplacement (1) selon l'une quelconque des revendications précédentes, dans laquelle le trajet d'écoulement pouvant être fermé par la soupape unidirectionnelle (3) est un contour de Venturi et/ou la soupape unidirectionnelle (3) est conçue pour fermer le trajet d'écoulement au point de la plus petite section transversale d'écoulement.
  11. Unité de déplacement (1) selon la revendication 10, dans laquelle le contour de Venturi possède une courbure optimisée pour minimiser la turbulence d'un fluide s'écoulant à travers la soupape unidirectionnelle (3).
  12. Unité de déplacement (1) selon l'une quelconque des revendications 10 à 11, dans laquelle l'orifice d'aspiration (4) peut être reliée à une plaque à bride (6) qui est conçue comme une partie d'un contour de Venturi formé avec le trajet d'écoulement de l'orifice d'aspiration (4).
  13. Système start-stop hydraulique (30) comprenant :
    une unité de déplacement (1) selon l'une quelconque des revendications précédentes, un moteur à combustion interne (31) couplé mécaniquement à l'unité de déplacement (1) et adapté pour entraîner l'unité de déplacement (1) et pour être entraîné par l'unité de déplacement (1), et
    un accumulateur de pression (32), qui est relié à un orifice de sortie (33) de l'unité de déplacement (1) et à un deuxième orifice (7) pour alimenter en fluide le moteur de l'unité de déplacement (1), dans lequel le premier orifice d'aspiration (4) de l'unité de déplacement (1) est relié à un réservoir de fluide (34).
  14. Système start-stop hydraulique (30) selon la revendication 13, dans lequel un fluide sous pression dans l'accumulateur de fluide (32) est utilisé pour démarrer un moteur à combustion interne (31) par un fluide s'écoulant de l'accumulateur de pression (32) entraînant l'unité de déplacement (1) et exerçant un mouvement de démarrage pour le moteur à combustion interne (31) par l'accouplement mécanique (35), dans lequel, de préférence, pour conduire le fluide, une première soupape (36) est prévue entre l'accumulateur de fluide (32) et le deuxième orifice(7) et une deuxième soupape (38) est prévue entre l'orifice de sortie (33) et une connexion au réservoir de fluide (34).
EP17172414.9A 2016-07-18 2017-05-23 Unité à déplacement positif et système marche/arrêt hydraulique comprenant une telle unité à déplacement positif Active EP3273057B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00919/16A CH712781A1 (de) 2016-07-18 2016-07-18 Verdrängereinheit sowie hydraulisches Start-Stopp-System mit einer solchen Verdrängereinheit.

Publications (2)

Publication Number Publication Date
EP3273057A1 EP3273057A1 (fr) 2018-01-24
EP3273057B1 true EP3273057B1 (fr) 2020-12-30

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ID=58772432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17172414.9A Active EP3273057B1 (fr) 2016-07-18 2017-05-23 Unité à déplacement positif et système marche/arrêt hydraulique comprenant une telle unité à déplacement positif

Country Status (2)

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EP (1) EP3273057B1 (fr)
CH (1) CH712781A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849032A (en) * 1973-07-02 1974-11-19 Perfect Pump Co High pressure reciprocating pump
JPH10252642A (ja) * 1997-03-11 1998-09-22 Hitachi Constr Mach Co Ltd アキシャルピストン型油圧ポンプ
JP4064016B2 (ja) * 1999-09-13 2008-03-19 本田技研工業株式会社 内燃機関の始動制御装置
DE20306851U1 (de) * 2003-04-24 2003-08-14 Pickel Peter Schnellstarteinrichtung
US7654283B2 (en) * 2003-10-21 2010-02-02 Seiko Epson Corporation Check valve and pump including check valve
JP2007056810A (ja) * 2005-08-25 2007-03-08 Komatsu Ltd 斜板式アキシャルピストンポンプ・モータ
FR2975731B1 (fr) * 2011-05-27 2015-12-11 Poclain Hydraulics Ind Dispositif de transmission hydraulique pouvant constituer un demarreur hydraulique compact
DE102012111296A1 (de) * 2012-11-22 2014-05-22 Linde Hydraulics Gmbh & Co. Kg Antriebsstrang eines Fahrzeugs, insbesondere einer mobilen Arbeitsmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
CH712781A1 (de) 2018-01-31
EP3273057A1 (fr) 2018-01-24

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