EP0072753B1 - Pressure fluid modular distribution system - Google Patents

Pressure fluid modular distribution system Download PDF

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Publication number
EP0072753B1
EP0072753B1 EP82401524A EP82401524A EP0072753B1 EP 0072753 B1 EP0072753 B1 EP 0072753B1 EP 82401524 A EP82401524 A EP 82401524A EP 82401524 A EP82401524 A EP 82401524A EP 0072753 B1 EP0072753 B1 EP 0072753B1
Authority
EP
European Patent Office
Prior art keywords
base plate
distributor
port
pressure
unit
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.)
Expired
Application number
EP82401524A
Other languages
German (de)
French (fr)
Other versions
EP0072753A3 (en
EP0072753A2 (en
Inventor
Roland Martinet
Alain Casas
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.)
Compair Climax SA
Original Assignee
Compair Climax SA
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Filing date
Publication date
Application filed by Compair Climax SA filed Critical Compair Climax SA
Publication of EP0072753A2 publication Critical patent/EP0072753A2/en
Publication of EP0072753A3 publication Critical patent/EP0072753A3/en
Application granted granted Critical
Publication of EP0072753B1 publication Critical patent/EP0072753B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular valves
    • F15B13/0839—Stacked plate type valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/068—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with valves for gradually putting pneumatic systems under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0817—Multiblock manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0821—Attachment or sealing of modular units to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0878—Assembly of modular units
    • F15B13/0896—Assembly of modular units using different types or sizes of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/465—Flow control with pressure compensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/5109—Convertible
    • Y10T137/5283—Units interchangeable between alternate locations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/877—With flow control means for branched passages
    • Y10T137/87885—Sectional block structure

Definitions

  • the subject of the present invention is a modular system for distributing a fluid under the control pressure of a motor device such as a pneumatic motor or cylinder or a valve, comprising at least one standard main distributor mounted interchangeably on a plate. base designed to ensure the connection of the distributor to the motor device and to the pressurized fluid supply network, and at least one auxiliary unit mounted upstream of the distributor, such as a unit performing the function of a soft starter or a blocker.
  • the trap-blocker and the soft starter are devices, either of the non-standard 4/2 type, or as disclosed by British patent GB-A-2,064,728 of the type 3 devices. / 2 and 2/2 respectively.
  • these known devices have been designed specifically to perform the functions of a blocker and a soft starter, respectively.
  • such known devices cannot be used to perform other functions. It is obvious that the use in a system of a large number of specific elements is a considerable disadvantage, because it makes the system complex and consequently expensive and inflexible since the essential elements are not interchangeable and qu 'Always keep a certain number of elements of each type in reserve to ensure that a defective element can be replaced quickly by an element in good working order.
  • the modular distribution system according to the invention is characterized in that the auxiliary unit comprises a standard distributor, of the same type as the main distributor which is mounted interchangeably on a specific base plate, configured to determine the function of the auxiliary unit and associable with the base plate of the main distributor and with base plates of other auxiliary units which may be present.
  • FIG. 1 illustrates in a schematic view a modular distribution system according to the present invention, comprising, mounted upstream of a distributor unit, a series connection of two auxiliary units forming respectively a soft starter and a trap-blocker, each unit comprising a distributor element mounted on a specific base plate.
  • Figures 2 and 3 show, in top views, the structure of the specific base plates and illustrate two operating states of the system according to Figure 1.
  • Figure 4 is a schematic view of a distribution system according to the invention, comprising an auxiliary unit forming a soft starter mounted upstream of a block of two distributors.
  • FIG. 5 illustrates the structure of the base plates of the system according to FIG. 4 and the operation thereof
  • Figure 6 shows in a top view, the structure of the bases of a distribution system according to the invention, comprising a trap-blocker unit mounted upstream of a block of two distributors.
  • Figure 1 shows schematically and in a principle view, a modular system for distributing a pressurized fluid, which comprises, in series, a flange B for connection to the pressurized fluid supply network, a unit U 1 forming a soft starter, a U 2 unit forming a blocker and a U 3 unit forming a distributor-proper or main intended to supply pressurized fluid to a motor device such as for example a motor or pneumatic cylinder or a valve (not represented).
  • a motor device such as for example a motor or pneumatic cylinder or a valve (not represented).
  • each unit comprises a distributor of the same type, for example of the basic 5/2 type.
  • Each distributor is removably and interchangeably mounted on the upper surface of a base plate which is designed to allow the unit to perform its specific function, namely that of a soft starter, a steam trap- blocker and a distributor itself.
  • the three base plates can be combined with each other.
  • the base D 1 is configured so that the unit U 1 operates as a 2/2 type element.
  • the base E 2 has a structure making it possible to use the unit U 2 as a 3/2 function of a trap-blocker.
  • the distributor D 3 subsequently called the main distributor to distinguish it from the other distributors, it operates in 5/2 mode and is mounted on a base plate E 3 .
  • the structure of this plate is known.
  • Each 5/2 type distributor in the example shown comprises a pressurized fluid supply orifice 1, two use or outlet orifices 2, 4, two exhaust orifices 3, 5 and two control orifices 12 , 14.
  • the orifices are shown in Figure 1 for the distributor D 3 which is used in 5/2 function.
  • the upper surface 20 of the base plate E 3 is shaped on the laying face and has a series of seven orifices each connectable to an orifice of the dispenser.
  • the orifices of the base mounting plane have the corresponding references 1 ', 2', 3 ', 4', 5 ', 12' and 14 '( Figures 2, 3, 5, 6). Since the units U 1 and U 2 do not operate in 5/2 mode, but respectively in 2/2 and 3/2 modes, the upper surfaces 20 shaped as laying faces have different orifice configurations, as will be demonstrated below.
  • the three base plates E i to E 3 can be associated directly with one another.
  • the front connection 21 and rear connection 22 faces of all the plates have the same configuration of three holes.
  • the front connection face 21 is provided with an inlet orifice 23 for supplying pressurized fluid to the unit in question and two orifices 24 for exhausting the unit.
  • the rear connection face 22 of each base plate comprises an outlet orifice 25 for the pressurized fluid and two orifices 26 for exhaust.
  • the exhaust orifices 24 and 26 in the front and rear connection faces of each base plate are connected by two internal channels 27 formed in each base plate.
  • an internal channel 18 also directly connects the inlet 23 and outlet 25 openings of the pressurized fluid.
  • the structure of the base plates E 1 and E 3 is different and depends on the operating mode of the distributors D, and D 2 . The structure of these base plates will be described below.
  • the pressure channel provided inside the base plate E consists of two parts which do not communicate directly with each other, namely an inlet part 28 and a part of exit 29.
  • the communication between these two parts is established by the distributor (figure 1).
  • the upper surface 20 of the base plate is provided, forming the laying face for the connection of the distributor D j , an orifice 30 which communicates by a vertical channel with the part of the inlet channel 28 .
  • the laying face 20 has a set of orifices 31 which communicate by vertical channels with the outlet channel part 29. The latter is connected by a smaller diameter channel 32 with another vertical channel which opens onto the laying face 20 through an orifice 33 which is calibrated by a removable nozzle represented diagrammatically in the orifice 33.
  • the orifices 30, 31 and 33 are located so as to correspond to ports 1 ', 2' and 4 ', so that they can be connected to ports 1, 2 and 4 of the distributor.
  • the distributors D I and D 2 are rotated 180 ° relative to the distributor D 3 , as appears from the configurations of connection holes 34 of the distributors, to the base plates.
  • FIG. 2 further recognizes at 35 a smaller diameter pipe which opens outwards to the rear connection surface 22 es to the upper laying surface 20 through an orifice 36.
  • the orifice 36 leads to a logic element L represented schematically in FIG. 1.
  • This element is integrated into the distributor in a manner known by French patent application No. 79,07032 (FR-A-2 452 019).
  • the element L is arranged to compare the pressure prevailing in the orifice 36 with the pressure in the pressure inlet channel 28. When the pressure in the orifice reaches a predetermined threshold, the logic element L produces a signal switch D 1 . Another switching signal will be produced when the pressure in port 36 subsequently drops below a predetermined threshold value.
  • the base plate E 2 of the unit U 2 intended to perform the function of a trap-blocker also comprises a pressure channel device which consists of two parts, an inlet part 38 and an outlet part 39.
  • the upper laying surface 20 of this base is provided with orifices 40 and 41 communicating respectively with the inlet and outlet parts 38, 39, by suitable vertical channels.
  • the mounting face also has an orifice 42 in communication with the exhaust channel 27.
  • the base plate E 2 also has an internal pipe 43 which opens at one end to the front connection surface 21 of the plate, at a location allowing its communication with the pipe 35 of the base plate E 1 . By its other end, this pipe communicates with the outlet part 39 of the pressure channel.
  • the orifices 40, 41 and 42 correspond to the orifices 1 ', 4' and 5 'of the base plate E 3 and are intended to be connected to the orifices 1, 4 and 5 of the distributor D 2 .
  • the orifice 31 of the part 29 of the pressurized fluid outlet channel is isolated from the orifice 30.
  • the distributor D 2 of the trap-blocker is in a position where it places the orifice 42 for exhaust of the base plate E 2 with the orifice 41 and thus with the outlet channel 39 for pressurized fluid.
  • the pressurized fluid inlet port 40 is isolated.
  • the distributor D 2 is therefore in the purge state. This means that the pressure channel 18 of the base plate E 3 is exhausted, as illustrated by the hatched area in FIG. 2.
  • the pressure can only gradually build up in the outlet pressure channel 29 of the base plate E 1 , due to the calibrated orifice 33 which is in communication with the orifice 30 through the distributor D 1 . As long as the trap-blocker is in the purge state, this pressure is blocked at the orifice 40 of the base plate E 2 . If an operator switches at the same time the distributor D 2 of the trap-blocker and thus creates the conditions illustrated in FIG.
  • the pressure prevailing in the inlet pressure channel 38 can be established in the outlet pressure channel 39 and in the pressure channel 18 of the base plate E 3 . This pressure is also transmitted, through the conduits 43 and 35 and the orifice 36 of the base plate E 1 to the logic element L.
  • the distributor D 3 is able to supply a motor device (not shown) with pressurized fluid, via its base plate.
  • the orifice 41 is again in communication with the exhaust channel 27, via the orifice 42 of the plate E 2 . Since the orifice 41 of the base E 2 and the orifice 36 of the base E, are connected to each other by the lines 43 and 35, the pressure at the logic element L also drops to reach the value of an atmosphere. When this pressure drop reaches approximately 50% of the pressure applied to the inlet of the system, the logic element will produce an appropriate pulse which returns the distributor to its initial position in which the orifices 31 of the base plate E, are isolated from the inlet pressure orifices 30, as illustrated by the white area inside the circles representing the orifices 31. The soft starter is thus ready to perform its function during a new switching of the trap-blocker.
  • the soft starter operates automatically depending on the state of the blocker. Systematically, after each purge of the system according to the invention, the soft starter automatically returns to its low flow position determined by the communication between the inlet orifice 30 and the calibrated orifice 33 of the base plate E l .
  • the orifice 33 is calibrated by a nozzle which screws into the base. This allows the user to choose the calibration diameter according to the quantity of cylinders or more generally of motor devices to be controlled.
  • FIGS. 4 and 5 show a modular distribution system for a pressurized fluid, according to the invention, in which a unit U, arranged according to FIGS. 1 to 3 to form a soft starter is mounted directly upstream of a block of two distribution units U 3 , U3 '.
  • the deletion of the trap-blocker does not cause any modification at the level of the soft starter, apart from the fact that the orifice 36 leading to the logic element L now receives the pressure which gradually builds up in the outlet pressure channel 29 of the base E 1 and consequently in the pressure channels 18 of the base plates E 3 , E 3 'by an external pipe 45 connecting the outlet of the pressure channel 18 of the last base plate E 3 ' to the external connection 37 of the base plate E 1 of the soft starter.
  • FIG. 4 shows a system in which a unit U 2 forming a trap-blocker according to FIGS. 1 to 3 is mounted at the head of a block of distributors U 3 , U3 ′, without a soft starter.
  • a unit U 2 forming a trap-blocker according to FIGS. 1 to 3 is mounted at the head of a block of distributors U 3 , U3 ′, without a soft starter.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

La présente invention a pour objet un système modulaire de distribution d'un fluide sous presion de commande d'un dispositif moteur tel qu'un moteur ou vérin pneumatique ou une vanne, comprenant au moins un distributeur principal standard monté de façon interchangeable sur une plaque d'embase conçue pour assurer la liasion du distributeur au dispositif moteur et au réseau d'alimentation en fluide sous pression, et au moins une unité auxiliaire montée en amont du distributeur, telle qu'une unité accomplissant la fonction d'un démarreur progressif ou d'un purgeur-bloqueur.The subject of the present invention is a modular system for distributing a fluid under the control pressure of a motor device such as a pneumatic motor or cylinder or a valve, comprising at least one standard main distributor mounted interchangeably on a plate. base designed to ensure the connection of the distributor to the motor device and to the pressurized fluid supply network, and at least one auxiliary unit mounted upstream of the distributor, such as a unit performing the function of a soft starter or a blocker.

Dans les systèmes de distribution connus de ce type, le purgeur-bloqueur et le démarreur progressif sont des appareils, soit du type 4/2 non normalisé, soit comme révélés par le brevet britannique GB-A-2 064 728 des appareils du type 3/2 et 2/2 respectivement. Cependant, ces appareils connus ont été conçus spécifiquement pour accomplir les fonctions respectivement d'un purgeur-bloqueur et d'un démarreur progressif. Par ailleurs, de tels appareils connus ne peuvent pas être utilisés pour réaliser d'autres fonctions. Il est évident que l'utilisation dans un système d'un grand nombre d'éléments spécifiques est un inconvénient considérable, car elle rend le système complexe et par conséquent coûteux et peu souple dans la mesure où les éléments essentiels ne sont pas interchangeables et qu'il faut toujours avoir en réserve un certain nombre d'éléments de chaque type pour assurer qu'un élément défectueux puisse être remplacé rapidement par un élément en bon état de fonctionnement.In known distribution systems of this type, the trap-blocker and the soft starter are devices, either of the non-standard 4/2 type, or as disclosed by British patent GB-A-2,064,728 of the type 3 devices. / 2 and 2/2 respectively. However, these known devices have been designed specifically to perform the functions of a blocker and a soft starter, respectively. Furthermore, such known devices cannot be used to perform other functions. It is obvious that the use in a system of a large number of specific elements is a considerable disadvantage, because it makes the system complex and consequently expensive and inflexible since the essential elements are not interchangeable and qu 'Always keep a certain number of elements of each type in reserve to ensure that a defective element can be replaced quickly by an element in good working order.

La présente invention a pour but de pallier cet inconvénient. Pour atteindre ce but, le système modulaire de distribution selon l'invention est caractérisé en ce que l'unité auxiliaire comprend un distributeur standard, du même type que le distributeur principal qui est monté de façon interchangeable sur une plaque d'embase spécifique, configurée pour déterminer la fonction de l'unité auxiliaire et associable avec la plaque d'embase du distributeur principal et avec des plaques d'embase d'autres unités auxiliaires éventuellement présentes.The object of the present invention is to overcome this drawback. To achieve this goal, the modular distribution system according to the invention is characterized in that the auxiliary unit comprises a standard distributor, of the same type as the main distributor which is mounted interchangeably on a specific base plate, configured to determine the function of the auxiliary unit and associable with the base plate of the main distributor and with base plates of other auxiliary units which may be present.

L'invention sera mieux comprise, et d'autres détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels:The invention will be better understood, and other details and advantages thereof will appear more clearly during the explanatory description which follows, given with reference to the appended schematic drawings given solely by way of example illustrating an embodiment of the invention and in which:

La figure 1 illustre en une vue schématique un système modulaire de distribution selon la présente invention, comprenant, monté en amont d'une unité formant distributeur, un montage en série de deux unités auxiliaires formant respectivement un démarreur progressif et un purgeur-bloqueur, chaque unité comprenant un élément distributeur monté sur une plaque d'embase spécifique.FIG. 1 illustrates in a schematic view a modular distribution system according to the present invention, comprising, mounted upstream of a distributor unit, a series connection of two auxiliary units forming respectively a soft starter and a trap-blocker, each unit comprising a distributor element mounted on a specific base plate.

Les figures 2 et 3 montrent, en des vues de dessus, la structure des plaques d'embase spécifiques et illustrent deux états de fonctionnement du système suivant la figure 1.Figures 2 and 3 show, in top views, the structure of the specific base plates and illustrate two operating states of the system according to Figure 1.

La figure 4 est une vue schématique d'un système de distribution selon l'invention, comprenant une unité auxiliaire formant un démarreur progressif monté en amont d'un bloc de deux distributeurs.Figure 4 is a schematic view of a distribution system according to the invention, comprising an auxiliary unit forming a soft starter mounted upstream of a block of two distributors.

La figure 5 illustre la structure des plaques d'embase du système suivant la figure 4 et le fonctionnement de celui-ci, etFIG. 5 illustrates the structure of the base plates of the system according to FIG. 4 and the operation thereof, and

La figure 6 montre en une vue de dessus, la structure des embases d'un système de distribution selon l'invention, comprenant une unité formant purgeur-bloqueur montée en amont d'un bloc de deux distributeurs.Figure 6 shows in a top view, the structure of the bases of a distribution system according to the invention, comprising a trap-blocker unit mounted upstream of a block of two distributors.

La figure 1 montre de façon schématique et en une vue de principe, un système modulaire de distribution d'un fluide sous pression, qui comprend, en série, une bride B de raccordement au réseau d'alimentation en fluide sous pression, une unité U1 formant un démarreur progressif, une unité U2 formant un purgeurbloqueur et une unité U3 formant un distributeur-proprement dit ou principal destiné à alimenter en fluide sous pression un dispositif moteur tel que par exemple un moteur ou vérin pneumatique ou une vanne (non représenté).Figure 1 shows schematically and in a principle view, a modular system for distributing a pressurized fluid, which comprises, in series, a flange B for connection to the pressurized fluid supply network, a unit U 1 forming a soft starter, a U 2 unit forming a blocker and a U 3 unit forming a distributor-proper or main intended to supply pressurized fluid to a motor device such as for example a motor or pneumatic cylinder or a valve (not represented).

Selon l'invention, chaque unité comprend un distributeur du même type, par exemple du type de base 5/2. Chaque distributeur est monté de façon amovible et interchangeable sur la surface supérieure d'une plaque d'embase qui est conçue pour permettre à l'unité d'accomplir sa fonction spécifique, à savoir celle d'un démarreur progressif, d'un purgeur-bloqueur et d'un distributeur proprement dit. Les trois plaques d'embase sont associables entre elles.According to the invention, each unit comprises a distributor of the same type, for example of the basic 5/2 type. Each distributor is removably and interchangeably mounted on the upper surface of a base plate which is designed to allow the unit to perform its specific function, namely that of a soft starter, a steam trap- blocker and a distributor itself. The three base plates can be combined with each other.

Dans l'unité U1 de démarreur progressif, l'embase D1 est configurée pour que l'unité U1 fonctionne en élément du type 2/2. L'embase E2 présente une structure permettant d'utiliser l'unité U2 en fonction 3/2 d'un purgeur-bloqueur. Quant au distributeur D3 appelé par la suite distributeur principal pour le distinguer des autres distributeurs, il fonctionne en mode 5/2 et est monté sur une plaque d'embase E3. La structure de cette plaque est connue.In the soft starter unit U 1 , the base D 1 is configured so that the unit U 1 operates as a 2/2 type element. The base E 2 has a structure making it possible to use the unit U 2 as a 3/2 function of a trap-blocker. As for the distributor D 3 subsequently called the main distributor to distinguish it from the other distributors, it operates in 5/2 mode and is mounted on a base plate E 3 . The structure of this plate is known.

Chaque distributeur du type 5/2 dans l'exemple représenté comprend un orifice d'alimentation en fluide sous pression 1, deux orifices d'utilisation ou de sortie 2, 4, deux orifices d'échappement 3, 5 et deux orifices de commande 12,14. Les orifices sont indiqués à la figure 1 pour le distributeur D3 qui est utilisé en fonction 5/2. La surface supérieure 20 de la plaque d'embase E3 est conformée en face de pose et présente une série de sept orifices chacun raccordable à un orifice du distributeur. Les orifices du plan de pose de l'embase portent les références correspondantes 1', 2', 3', 4', 5', 12' et 14' (figures 2, 3, 5, 6). Etant donné que les unités U1 et U2 ne fonctionnent pas en mode 5/2, mais respectivement en modes 2/2 et 3/2, les surfaces supérieures 20 conformées en faces de pose présentent des configurations d'orifices différentes, comme il sera démontré plus loin.Each 5/2 type distributor in the example shown comprises a pressurized fluid supply orifice 1, two use or outlet orifices 2, 4, two exhaust orifices 3, 5 and two control orifices 12 , 14. The orifices are shown in Figure 1 for the distributor D 3 which is used in 5/2 function. The upper surface 20 of the base plate E 3 is shaped on the laying face and has a series of seven orifices each connectable to an orifice of the dispenser. The orifices of the base mounting plane have the corresponding references 1 ', 2', 3 ', 4', 5 ', 12' and 14 '(Figures 2, 3, 5, 6). Since the units U 1 and U 2 do not operate in 5/2 mode, but respectively in 2/2 and 3/2 modes, the upper surfaces 20 shaped as laying faces have different orifice configurations, as will be demonstrated below.

Comme il ressort des figures, les trois plaques d'embase Ei à E3 peuvent être associées directement les unes aux autres, A cette fin, les faces de raccordement avant 21 et de raccordement arrière 22 de toutes les plaques présentent la même configuration de trois orifices. La face de raccordement avant 21 est pourvue d'un orifice d'entrée 23 pour l'alimentation en fluide sous pression de l'unité considérée et de deux orifices 24 de mise à l'échappement de l'unité. La face de raccordement arrière 22 de chaque plaque d'embase comprend un orifice de sortie 25 du fluide sous pression et deux orifices 26 de mise à l'échappement. Les orifices de mise à l'échappement 24 et 26 dans les faces avant et arrière de raccordement de chaque plaque d'embase sont reliés par deux canaux internes 27 pratiqués dans chaque plaque d'embase. Dans la plaque d'embase E3 un canal interne 18 relie directement également les orifices d'entrée 23 et de sortie 25 du fluide sous pression. Par contre, comme le montrent clairement les figures, la structure des plaques d'embase E1 et E3 est différente et est fonction du mode de fonctionnement des distributeurs D, et D2. La structure de ces plaques d'embase sera décrite ci-après.As can be seen from the figures, the three base plates E i to E 3 can be associated directly with one another. To this end, the front connection 21 and rear connection 22 faces of all the plates have the same configuration of three holes. The front connection face 21 is provided with an inlet orifice 23 for supplying pressurized fluid to the unit in question and two orifices 24 for exhausting the unit. The rear connection face 22 of each base plate comprises an outlet orifice 25 for the pressurized fluid and two orifices 26 for exhaust. The exhaust orifices 24 and 26 in the front and rear connection faces of each base plate are connected by two internal channels 27 formed in each base plate. In the base plate E 3 an internal channel 18 also directly connects the inlet 23 and outlet 25 openings of the pressurized fluid. On the other hand, as the figures clearly show, the structure of the base plates E 1 and E 3 is different and depends on the operating mode of the distributors D, and D 2 . The structure of these base plates will be described below.

Il ressort des figures 1 et 2 que le canal de pression prévu à l'intérieur de la plaque d'embase E, se compose de deux parties qui ne communiquent pas directement entre elles, à savoir une partie d'entrée 28 et une partie de sortie 29. La communication de ces deux parties est établie par le distributeur (figure 1). A cette fin, on a prévu dens la surface supérieure 20 de la plaque d'embase, formant la face de pose pour le raccordement du distributeur Dj, un orifice 30 qui communique par un canal vertical avec la partie du canal d'entrée 28.It appears from Figures 1 and 2 that the pressure channel provided inside the base plate E, consists of two parts which do not communicate directly with each other, namely an inlet part 28 and a part of exit 29. The communication between these two parts is established by the distributor (figure 1). To this end, the upper surface 20 of the base plate is provided, forming the laying face for the connection of the distributor D j , an orifice 30 which communicates by a vertical channel with the part of the inlet channel 28 .

De la même manière, la face de pose 20 présente un ensemble d'orifices 31 qui communiquent par des canaux verticaux avec la partie de canal de sortie 29. Ce dernier est relié par un canal de plus faible diamètre 32 avec un autre canal vertical qui débouche à la face de pose 20 par un orifice 33 qui est calibré par un gicleur amovible représenté schématiquement dans l'orifice 33. Comme on le constate en se reportant par exemple à la figure 2, les orifices 30, 31 et 33 sont situés de façon à correspondre aux orifices 1', 2' et 4', pour pouvoir être raccordés aux orifices 1, 2 et 4 du distributeur. Il est à noter que les distributeurs DI et D2 sont tournés de 180° par rapport au distributeur D3, comme il ressort des configurations de trous de raccordement 34 des distributeurs, aux plaques d'embase. A la figure 2 on reconnaît en outre en 35 une conduite de plus faible diamètre qui débouche vers l'extérieur à la surface de raccordement arrière 22 es à la surface supérieure de pose 20 par un orifice 36.Similarly, the laying face 20 has a set of orifices 31 which communicate by vertical channels with the outlet channel part 29. The latter is connected by a smaller diameter channel 32 with another vertical channel which opens onto the laying face 20 through an orifice 33 which is calibrated by a removable nozzle represented diagrammatically in the orifice 33. As can be seen by referring for example to FIG. 2, the orifices 30, 31 and 33 are located so as to correspond to ports 1 ', 2' and 4 ', so that they can be connected to ports 1, 2 and 4 of the distributor. It should be noted that the distributors D I and D 2 are rotated 180 ° relative to the distributor D 3 , as appears from the configurations of connection holes 34 of the distributors, to the base plates. FIG. 2 further recognizes at 35 a smaller diameter pipe which opens outwards to the rear connection surface 22 es to the upper laying surface 20 through an orifice 36.

A ce dernier est également associé un raccord externe 37 qui peut être fermé, comme c'est la cas à la figure 1. L'orifice 36 mêne à un élément logique L représenté de façon schématique sur la figure 1. Cet élément est intégré au distributeur de façon connue par la demande de brevet français n° 79 07032 (FR-A-2 452 019). L'élément L est agencé pour comparer la pression qui règne dans l'orifice 36 à la pression dans le canal d'entrée de pression 28. Lorsque la pression dans l'orifice atteint un seuil prédéterminé, l'élément logique L produit un signal de commutation du distributeur D1. Un autre signal de commutation sera produit quand la pression dans l'orifice 36 descend par la suite en dessous d'une valeur de seuil prédéterminée.To the latter is also associated an external connector 37 which can be closed, as is the case in FIG. 1. The orifice 36 leads to a logic element L represented schematically in FIG. 1. This element is integrated into the distributor in a manner known by French patent application No. 79,07032 (FR-A-2 452 019). The element L is arranged to compare the pressure prevailing in the orifice 36 with the pressure in the pressure inlet channel 28. When the pressure in the orifice reaches a predetermined threshold, the logic element L produces a signal switch D 1 . Another switching signal will be produced when the pressure in port 36 subsequently drops below a predetermined threshold value.

La plaque d'embase E2 de l'unité U2 destinée à accomplir la fonction d'un purgeur-bloqueur comprend également un dispositif de canal de pression qui se compose de deux parties, une partie d'entrée 38 et une partie de sortie 39. La surface supérieure de pose 20 de cette embase est pourvue d'orifices 40 et 41 communiquant respectivement avec les parties d'entrée et de sortie 38, 39, par des canaux verticaux appropriés.The base plate E 2 of the unit U 2 intended to perform the function of a trap-blocker also comprises a pressure channel device which consists of two parts, an inlet part 38 and an outlet part 39. The upper laying surface 20 of this base is provided with orifices 40 and 41 communicating respectively with the inlet and outlet parts 38, 39, by suitable vertical channels.

La face de pose présente en outre un orifice 42 en communication avec le canal de mise à l'échappement 27. La plaque d'embase E2 comporte encore une conduite interne 43 qui débouche par une extrémité à la surface de raccordement avant 21 de la plaque, à un emplacement permettant sa mise en communication avec la conduite 35 de la plaque d'embase E1. Par son autre extrémité cette conduite communique avec la partie de sortie 39 du canal de pression. Il est à noter que les orifices 40, 41 et 42 correspondent aux orifices 1', 4' et 5' de la plaque d'embase E3 et sont destinés à être reliés aux orifices 1,4 et 5 du distributeur D2.The mounting face also has an orifice 42 in communication with the exhaust channel 27. The base plate E 2 also has an internal pipe 43 which opens at one end to the front connection surface 21 of the plate, at a location allowing its communication with the pipe 35 of the base plate E 1 . By its other end, this pipe communicates with the outlet part 39 of the pressure channel. It should be noted that the orifices 40, 41 and 42 correspond to the orifices 1 ', 4' and 5 'of the base plate E 3 and are intended to be connected to the orifices 1, 4 and 5 of the distributor D 2 .

Le système de distribution représenté schématiquement à la figure 1 et utilisant les plaques d'embase dont les structures ressortent des figures 2 et 3 fonctionne de la manière suivante:

  • Les figures 1 et 2 montrent le système selon l'invention à son état initial. Le distributeur D1 du démarreur progressif est dans une position où il assure la communication entre l'orifice d'entrée de fluide sous pression 30 et l'orifice calibré 33.
The distribution system shown diagrammatically in FIG. 1 and using the base plates, the structures of which emerge from FIGS. 2 and 3, operates as follows:
  • Figures 1 and 2 show the system according to the invention in its initial state. The distributor D 1 of the soft starter is in a position where it provides communication between the pressurized fluid inlet orifice 30 and the calibrated orifice 33.

L'orifice 31 de la partie 29 du canal de sortie de fluide sous pression est isolé de l'orifice 30. Le distributeur D2 du purgeur-bloqueur est dans une position où il met en communication l'orifice 42 d'échappement de la plaque d'embase E2 avec l'orifice 41 et ainsi avec le canal de sortie 39 de fluide sous pression. L'orifice d'entrée de fluide sous pression 40 est isolé. Le distributeur D2 est donc à l'état de purge. Ceci signifie que le canal de pression 18 de la plaque d'embase E3 est mis à l'échappement, comme l'illustre la zone hachurée de la figure 2.The orifice 31 of the part 29 of the pressurized fluid outlet channel is isolated from the orifice 30. The distributor D 2 of the trap-blocker is in a position where it places the orifice 42 for exhaust of the base plate E 2 with the orifice 41 and thus with the outlet channel 39 for pressurized fluid. The pressurized fluid inlet port 40 is isolated. The distributor D 2 is therefore in the purge state. This means that the pressure channel 18 of the base plate E 3 is exhausted, as illustrated by the hatched area in FIG. 2.

Lorsqu'on applique un fluide sous pression à l'entrée du système de distribution selon l'invention, la pression ne peut s'établir que progressivement dans le canal de pression de sortie 29 de la plaque d'embase E1, en raison de l'orifice calibré 33 qui est en communication avec l'orifice 30 à travers le distributeur D1. Tant que le purgeur-bloqueur est à l'état de purge, cette pression est bloquée à l'orifice 40 de la plaque d'embase E2. Si un opérateur commute en même temps le distributeur D2 du purgeur-bloqueur et crée ainsi les conditions illustrées à la figure 3, dans lesquelles l'orifice 41 de la plaque d'embase E2 est isolé de l'orifice d'échappement 42 et mis en communication avec l'orifice 40, par le distributeur D2, la pression qui règne dans le canal de pression d'entrée 38 peut s'établir dans le canal de pression de sortie 39 et dans le canal de pression 18 de la plaque d'embase E3. Cette pression est également transmise, à travers les conduites 43 et 35 et l'orifice 36 de la plaque d'embase E1 à l'élément logique L. Dès que la pression régnant dans le canal 18 de la plaque d'embase E3, qui augmente progressivement sous l'effet de l'orifice calibré 33 et son gicleur, atteint un seuil prédéterminé, correspondant par exemple à 60% de la pression appliquée à l'entrée du système, cet élément qui reçoit en outre par une conduite 44 interne le fluide sous pression (figure 1) produit un signal autorisant ou provoquant la commutation du distributeur D1 du démarreur progressif. Après sa commutation, le distributeur met en communication les orifices 30 et 31 et isole l'orifice calibré 33. La pression qui règne à l'entrée du système s'installera par conséquent immédiatement dans le canal de pression 18 de la plaque d'embase E3. On obtient ainsi les conditions de fonctionnement indiquées à la figure 2 par les zones en pointillé.When applying a pressurized fluid to the inlet of the distribution system according to the invention, the pressure can only gradually build up in the outlet pressure channel 29 of the base plate E 1 , due to the calibrated orifice 33 which is in communication with the orifice 30 through the distributor D 1 . As long as the trap-blocker is in the purge state, this pressure is blocked at the orifice 40 of the base plate E 2 . If an operator switches at the same time the distributor D 2 of the trap-blocker and thus creates the conditions illustrated in FIG. 3, in which the orifice 41 of the base plate E 2 is isolated from the exhaust orifice 42 and placed in communication with the orifice 40, by the distributor D 2 , the pressure prevailing in the inlet pressure channel 38 can be established in the outlet pressure channel 39 and in the pressure channel 18 of the base plate E 3 . This pressure is also transmitted, through the conduits 43 and 35 and the orifice 36 of the base plate E 1 to the logic element L. As soon as the pressure prevailing in the channel 18 of the base plate E 3 , which gradually increases under the effect of the calibrated orifice 33 and its nozzle, reaches a predetermined threshold, corresponding for example to 60% of the pressure applied to the inlet of the system, this element which also receives via a pipe 44 internal the pressurized fluid (figure 1) produces a signal authorizing or causing the switching of the distributor D 1 of the soft starter. After switching, the distributor connects the orifices 30 and 31 and isolates the calibrated orifice 33. The pressure prevailing at the inlet of the system will therefore immediately settle in the pressure channel 18 of the base plate E 3 . The operating conditions indicated in FIG. 2 are thus obtained by the dotted areas.

Dans cette situation, le distributeur D3 est en état d'alimenter un dispositif moteur (non représenté) en fluide sous pression, par l'intermédiaire de sa plaque d'embase.In this situation, the distributor D 3 is able to supply a motor device (not shown) with pressurized fluid, via its base plate.

Si le distributeur purgeur-bloqueur D2 est recommuté dans sa position de purge illustrée à la figure 2, l'orifice 41 est à nouveau en communication avec le canal d'échappement 27, par l'intermédiaire de l'orifice 42 de la plaque d'embase E2. Etant donné que l'orifice 41 de l'embase E2 et l'orifice 36 de l'embase E, sont reliés l'un à l'autre par les conduites 43 et 35, la pression à l'élément logique L chute également pour atteindre la valeur d'une atmosphère. Lorsque cette chute de pression atteint 50% environ de la pression appliquée à l'entrée du système, l'élément logique produira une impulsion appropriée qui ramène le distributeur dans sa position initiale dans laquelle les orifices 31 de la plaque d'embase E, sont isolés des orifices de pression d'entrée 30, comme cela est illustré par la zone blanche à l'intérieur des cercles représentant les orifices 31. Le démarreur progressif est ainsi prêt à accomplir sa fonction lors d'une nouvelle commutation du purgeur- bloqueur.If the bleed-block distributor D 2 is recommenced in its bleed position illustrated in FIG. 2, the orifice 41 is again in communication with the exhaust channel 27, via the orifice 42 of the plate E 2 . Since the orifice 41 of the base E 2 and the orifice 36 of the base E, are connected to each other by the lines 43 and 35, the pressure at the logic element L also drops to reach the value of an atmosphere. When this pressure drop reaches approximately 50% of the pressure applied to the inlet of the system, the logic element will produce an appropriate pulse which returns the distributor to its initial position in which the orifices 31 of the base plate E, are isolated from the inlet pressure orifices 30, as illustrated by the white area inside the circles representing the orifices 31. The soft starter is thus ready to perform its function during a new switching of the trap-blocker.

Il est à retenir, que le démarreur progressif fonctionne de façon automatique en fonction de l'état du purgeur-bloqueur. Systématiquement, après chaque purge du système selon l'invention, le démarreur progressif revient automatiquement dans sa position petit débit déterminée par la communication entre l'orifice d'entrée 30 et l'orifice calibré 33 de la plaque d'embase El.It should be remembered that the soft starter operates automatically depending on the state of the blocker. Systematically, after each purge of the system according to the invention, the soft starter automatically returns to its low flow position determined by the communication between the inlet orifice 30 and the calibrated orifice 33 of the base plate E l .

Il est à noter que l'orifice 33 est calibré par un gicleur qui se visse dans l'embase. Ceci permet à l'utilisateur de choisir le diamètre de calibrage en fonction de la quantité de vérins ou tout généralement de dispositifs moteurs à commander.It should be noted that the orifice 33 is calibrated by a nozzle which screws into the base. This allows the user to choose the calibration diameter according to the quantity of cylinders or more generally of motor devices to be controlled.

Bien que le système qui vient d'être décrit comprend un démarreur progressif et un purgeur-bloqueur, ces unités auxiliaires peuvent être utilisées séparément.Although the system just described includes a soft starter and a blocker, these auxiliary units can be used separately.

Ainsi les figures 4 et 5 montrent un système modulaire de distribution d'un fluide sous pression, selon l'invention, dans lequel une unité U, agencée suivant les figures 1 à 3 pour former un démarreur progressif est montée directement en amont d'un bloc de deux unités de distribution U3, U3'. La suppression du purgeur-bloqueur n'entraîne pas de modification au niveau du démarreur progressif, à part du fait que l'orifice 36 menant à l'élément logique L reçoit maintenant la pression qui s'établit progressivement dans le canal de pression de sortie 29 de l'embase E1 et par conséquent dans les canaux de pression 18 des plaques d'embase E3, E3' par une conduite extérieure 45 reliant la sortie du canal de pression 18 de la dernière plaque d'embase E3' au raccord extérieur 37 de la plaque d'embase E1 du démarreur progressif. Comme il ressort de la figure 5, la conduite interne 35 de la plaque d'embase E1 est bouchée au niveau de la surface de raccordement arrière 22 de cette plaque d'embase. Le fonctionnement du démarreur progressif représenté aux figures 4 et 5 est le même que celui qui vient d'être décrit en se reportant aux figures 1 à 3.Thus, FIGS. 4 and 5 show a modular distribution system for a pressurized fluid, according to the invention, in which a unit U, arranged according to FIGS. 1 to 3 to form a soft starter is mounted directly upstream of a block of two distribution units U 3 , U3 '. The deletion of the trap-blocker does not cause any modification at the level of the soft starter, apart from the fact that the orifice 36 leading to the logic element L now receives the pressure which gradually builds up in the outlet pressure channel 29 of the base E 1 and consequently in the pressure channels 18 of the base plates E 3 , E 3 'by an external pipe 45 connecting the outlet of the pressure channel 18 of the last base plate E 3 ' to the external connection 37 of the base plate E 1 of the soft starter. As can be seen in FIG. 5, the internal pipe 35 of the base plate E 1 is plugged at the rear connection surface 22 of this base plate. The operation of the soft starter shown in FIGS. 4 and 5 is the same as that which has just been described with reference to FIGS. 1 to 3.

La figure 4 montre un système dans lequel une unité U2 formant purgeur-bloqueur suivant les figures 1 à 3 est monté en tête d'un bloc de distributeurs U3, U3', sans démarreur progressif. Comme on le constate en comparant ces figures et la figure 6, il n'y a pas de différence tant sur le plan de structure que sur le plan du fonctionnement entre les deux cas, à l'exception du fait que la conduite interne 43 est maintenant fermée au niveau de ses extrémités débouchant à l'extérieur.FIG. 4 shows a system in which a unit U 2 forming a trap-blocker according to FIGS. 1 to 3 is mounted at the head of a block of distributors U 3 , U3 ′, without a soft starter. As can be seen by comparing these figures and FIG. 6, there is no difference both in terms of structure and in terms of operation between the two cases, except for the fact that the internal pipe 43 is now closed at its ends opening to the outside.

Après la description de la structure des unités auxiliaires et des systèmes auxquels celles-ci sont incorporées, on comprend l'avantage qu'apporte la présente invention. En effet, celle-ci permet d'utiliser dans toutes les unités le même type de distributeur et ce ne sont que les plaques d'embase faciles à fabriquer et d'un prix de revient relativement faible qui sont différentes et configurées pour permettre au distributeur d'accomplir une fonction spécifique, telle que, par exemple d'un démarreur progressif et d'un purgeur-bloqueur.After the description of the structure of the auxiliary units and of the systems in which these are incorporated, the advantage which the present invention brings is understood. Indeed, this makes it possible to use in all the units the same type of distributor and it is only the base plates which are easy to manufacture and of a relatively low cost price which are different and configured to allow the distributor to perform a specific function, such as, for example, a soft starter and a blocker.

Claims (13)

1. Modular system for the distribution of a control fluid under pressure for a motor device, comprising at least one main standard distributor (D3) interchangeably mounted on a base plate (E3) designed to provide the connection of the distributor to the motor device and to the pressure fluid supply network and at least one auxiliary unit (U1, U2) mounted upstream of the distributor such as a unit accomplishing the function of a progressive starter or of a locking drain cock, characterized in that the auxiliary unit (U1, U2) comprises a standard distributor (D1, D2) of the same kind as the main distributor (D3) which is interchangeably mounted on a specific base plate (E1, E2) shaped to determine the function of the auxiliary unit and associatable with the base plate (E3) of the main distributor (D3) and with the base plates of other auxiliary units possibly present.
2. System according to claim 1, characterized in that the setting plane (20) of the base plates (E1, E2) of the auxiliary units is in accordance with the setting plane of the distributors (D1, D2, D3) and in that some of the openings normally present in the setting plane (20) of the base plate (E1, E2) are omitted, the choice of the openings which are present depending upon the function the auxiliary unit (U1, U2) has to perform.
3. System according to claim 2, characterized in that in an auxiliary unit (U1) forming a progressive starter and using a distributor (D1) of the 5/2 type, the base plate (E1) is so shaped that the unit (U1) performs a function 2/2.
4. System according to claim 3, comprising base plates which exhibit in their mutual connecting front and rear faces the same configuration of two exhaust ports and of one pressure port, the exhaust ports being connected directly through inner channels, characterized in that the setting plane (20) of the base plate (E1) of the progressive starter unit (Ul) comprises a first pressure port (30) communicating with the pressure inlet port (23) of the connecting front face (21), a second port (31) and a third port (33) calipered and provided with a jet, these two ports communicating with the outlet pressure port (25) of the rear connecting face (22) and in that these three ports are arranged in such a manner that the distributor (D1) connects the first port (30) either to the second port (31) or to the third gauged port (33) according to its switching state.
5. System according to claim 4, characterized in that the second (31) and third (33) aforesaid ports of the setting plane (20) are located in front of the utilization openings (2, 4) of the setting plane of the distributor (D1).
6. System according to one of claims 4 or 5, characterized in that the setting plane (21) comprises a fourth port (36) arranged to be in front of a control port (12) of the distributor (D1) and communicating with an outer connector (37) and with an inner duct (35) of the base plate opening into the rear connecting face (22) of this plate, this port being usable for carrying out an automatic switching of the distributor (D1).
7. System according to claim 6, characterized in that the aforesaid fourth port (36) is connected to an inlet of a logic element (L) with two inputs, which is mounted on the distributor (D1) and receives at its other input forming a reference input the full pressure of the fluid under pressure, the logic element (L) producing a switching signal when the pressure at the fourth port (36) reaches a predetermined threshold with respect to the pressure at its reference input.
8. System according to one of claims 1 or 2, characterized in that in an auxiliary unit forming a locking drain cock and using a distributor of the 5/2 type, the base plate (E2) is so shaped that the unit (D2) performs a function 3/2.
9. System according to claim 8, comprising bases which exhibit in their front and rear connecting faces the same configuration of two exhaust ports and of one pressure port, the exhaust ports being connected directly through inner channels, characterized in that the laying plane (20) of the base plate (E2) of the locking drain cock unit (U2) comprises a first opening (40) connected to an inner inlet pressure channel (38) in communication with the pressure port in the front connecting face of the base plate (E2), a second opening (41) connected to an outlet pressure channel (39) in communication with the outlet pressure port in the rear connecting plate of the base plate (E2) and a third opening (42) in communication with the inner exhaust channel (27) of the plate (E2), these openings being arranged in such a manner that the distributor puts the second opening (41) in communication either with the first opening (40) or with the third opening (42) according to its switching condition.
10. System according to claims 6 and 9, characterized in that the base plate (E2) comprises an inner duct (43) establishing a communication between the outlet pressure channel (39) and a port in the front connecting face of the base plate (E2), the outlet opening of the duct (43) being disposed so as to be able to communicate with the outlet opening of the duct (35) of the base plate (E1) when both base plates (E1, E2) are associated with each other.
11. System according to one of claims 6 or 7, comprising an auxiliary unit forming a progressive starter mounted upstream of a main distributor, characterized in that the pressure port in the rear connecting face (22) of the pressure channel (18) of the base plate (E3) of the main distributor (D3) is connected to the outer connector (37) of the base plate (E1) of the progressive starter (U1), the outlet opening of the duct (35) of the base plate (E1) being closed.
12. System according to claims 6 and 10, comprising a mounting in series of both auxiliary units forming a progressive starter and a locking drain cock, respectively, characterized in that the outer connector (37) of the base plate (E1) of the progressive starter (U1) is closed and the ducts (35,43) of the base plates (E1, E2) of both auxiliary units (U1, U2) are communicating.
13. System according to one of claims 4 to 12, characterized in that the communications between the openings of the laying plane (20) of the base plates (E1, E2) with the ports in the front and rear connecting faces (21, 22) of the base plates are carried out through inner channels thereof.
EP82401524A 1981-08-14 1982-08-11 Pressure fluid modular distribution system Expired EP0072753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8115778 1981-08-14
FR8115778A FR2511448B1 (en) 1981-08-14 1981-08-14 MODULAR SYSTEM FOR DISPENSING A FLUID UNDER PRESSURE OF CONTROL OF A MOTOR DEVICE COMPRISING AT LEAST ONE MAIN VALVE AND AT LEAST ONE AUXILIARY UNIT SUCH AS A SOFT STARTER OR DRAIN BLOCKER, MOUNTED UPSTREAM OF THE DISTRIBUTOR

Publications (3)

Publication Number Publication Date
EP0072753A2 EP0072753A2 (en) 1983-02-23
EP0072753A3 EP0072753A3 (en) 1983-09-21
EP0072753B1 true EP0072753B1 (en) 1986-10-15

Family

ID=9261496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401524A Expired EP0072753B1 (en) 1981-08-14 1982-08-11 Pressure fluid modular distribution system

Country Status (4)

Country Link
US (1) US4640311A (en)
EP (1) EP0072753B1 (en)
DE (1) DE3273827D1 (en)
FR (1) FR2511448B1 (en)

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Also Published As

Publication number Publication date
EP0072753A3 (en) 1983-09-21
EP0072753A2 (en) 1983-02-23
US4640311A (en) 1987-02-03
DE3273827D1 (en) 1986-11-20
FR2511448A1 (en) 1983-02-18
FR2511448B1 (en) 1986-12-12

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