WO2018220243A1 - Pressure exchanger valve - Google Patents

Pressure exchanger valve Download PDF

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Publication number
WO2018220243A1
WO2018220243A1 PCT/ES2018/070345 ES2018070345W WO2018220243A1 WO 2018220243 A1 WO2018220243 A1 WO 2018220243A1 ES 2018070345 W ES2018070345 W ES 2018070345W WO 2018220243 A1 WO2018220243 A1 WO 2018220243A1
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WO
WIPO (PCT)
Prior art keywords
pair
valve
chamber
openings
opening
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Application number
PCT/ES2018/070345
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Spanish (es)
French (fr)
Inventor
Gabriel Roig Santandreu
Original Assignee
Gabriel Roig Santandreu
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Application filed by Gabriel Roig Santandreu filed Critical Gabriel Roig Santandreu
Publication of WO2018220243A1 publication Critical patent/WO2018220243A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/22—Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/22—Rotary-piston machines or pumps of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves

Definitions

  • the present invention relates to a pressure exchange valve, which allows fluids to be exchanged at different pressures, which results in energy savings in certain hydraulic circuits.
  • valve capable of exchanging pressures between two fluids at different pressures, for example for a 1 Bar fluid with one at 200 Bar, which is useful in hydraulic circuits, for example in circuits that drive a motor or hydraulic piston, etc., in such a way that this function must be implemented with a set of valves or pumps, and if said set of valves has for example a capacity or flow 5 l / m and we want a pressure of 200 bar, with the systems current we would need 1 .1 kw.
  • the pressure exchange valve of the invention has a configuration that solves the technical problem posed.
  • the valve comprises:
  • a rotary shutter in general triangular equilateral prismatic form, whose lateral edges are in contact with the walls of the chamber to generate three mobile subchambers inside the chamber when the shutter is rotated, for which the agreements are rounded the two circles of the section, and provided in its interior with a longitudinal cavity of circular section in whose perimeter a first gear is formed,
  • first pair of openings comprising a first intake opening and a first exhaust opening
  • second pair of openings comprising a second intake opening and a second exhaust opening
  • first pair disposed on one side (intersection zone of the two circles of the chamber section) of the chamber and the second pair facing the first pair
  • each intake opening of a pair arranged before each exhaust opening of the opposite pair being in an offset (angular amplitude) equal in both cases, since between each intake opening of a pair and each exhaust opening of the opposite pair are defined hydraulic fluid flows
  • the camera is divided into three sub-chambers, so that two of them simultaneously pass through the area where the pairs of openings are arranged, one of said two sub-chambers in the admission cycle and the other in the expulsion cycle.
  • Said subchambers are filled by the two intake openings and once the intake opening is closed to the passage of the lateral edge of the shutter and before the expulsion is opened, it is when the high pressure circuit is opened through its flow regulator (at the time the fluid is isolated); when the expulsion is opened, by exchanging two fluids with different pressures in an undeformable chamber, the low pressure fluid has been placed at high pressure.
  • the pressure exchange valve it is possible to capture a flow at atmospheric pressure and only generate a pressure (for example 200 bar) for approximately 10% of the flow we need - with the consequent energy saving -, and when introducing the two fluids in an undeformable chamber - one at atmospheric pressure and the other at high pressure, with 0.7% compressibility that for example have oleohydraulic fluids, with 9% of liquid that will help us complete the rotation of the valve we will obtain a much higher flow rate (for example 5 l / m) at 200 bar with a minimum mechanical stress, for example 0.2 kw.
  • a pressure for example 200 bar
  • valve of the invention can be applied to any circuit that drives a motor or hydraulic piston.
  • Figure 1 shows a cross section of the valve of the invention
  • Figure 2 shows a longitudinal section of the valve of the invention
  • Figure 3 shows a schematic view of the coupling of nine valves of the invention on the same axis, where each valve is advanced 20 degrees from the previous one.
  • the pressure exchanger valve (1) of the invention comprises (see fig. 1):
  • a rotary shutter (3) generally equilateral triangular prismatic, whose lateral edges (30) are in contact with the walls of the chamber (2) to generate three sub-chambers (22, 23, 24) movable inside the chamber (2), and provided inside with a longitudinal cavity (31) of circular section, in which perimeter a first gear (32) is formed,
  • first pair (5) of openings comprising a first intake opening (50) and a first exhaust opening (51), and a second pair (6) of openings comprising a second intake opening (60) and a second exhaust opening (61);
  • first pair (5) being arranged on one side of the chamber (2) and the second pair (6) on the side facing the chamber (2); each intake opening (50, 60) of each pair (5, 6) being arranged before each escape opening (51, 61) of the opposite pair in an equal offset in both cases, since between each intake opening of a torque and each exhaust opening of the opposite torque are defined hydraulic fluid flows,
  • the offset between the intake openings (50, 60) of each pair (5, 6) and the exhaust openings (51, 61) of the opposite pair is between 180 and 140, since in this way a better operation of the valve, and most preferably said offset is 150 degrees.
  • the lateral faces (35) of the rotating shutter (3) are preferably convex, since this improves the thrusts of the flow against the shutter and vice versa.
  • flow regulators (8) can be arranged which are arranged in the ducts (7) to regulate or block the flow.
  • the valve (1) is associated with a plurality of additional equal valves (1), whose drive shafts (4) are connected, said valves being angularly offset, that is, their shutters (3) rotated with respect to the preceding and subsequent valve.
  • said angular offset is 20 degrees, requiring 9 valves to cover 180 degrees, and as there are two symmetrical chambers working, the 360 degrees of a turn. This prevents the recoil due to the resistance generated by any equipment connected to the exhaust openings since a constant high pressure would be maintained in the assembly connected by the same axis. In any case, it can be done with different offsets and interconnected valves.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

Pressure exchanger valve (1), which comprises: a prismatic chamber (2) having a section in the form of two intersecting circles (20, 21); an equilateral triangular prismatic rotary shutter (3) having side edges (30) in contact with the walls of the chamber (2), and provided in its interior with a longitudinal cavity (31) with a circular section on whose perimeter a first gear assembly (31) is formed; an axial drive shaft (4) of the shutter (3) arranged inside the cavity (31), provided with a second gear assembly (42) for coupling to the first gear assembly (32); a first pair (5) of openings having a first intake opening (50) and a first exhaust opening (51), and a second pair (6) of openings having a first intake opening (60) and a second exhaust opening (61); pipes (7) to connect the valve (1) to a hydraulic system (80).

Description

VÁLVULA INTERCAMBIADORA DE PRESIÓN  PRESSURE EXCHANGER VALVE
DESCRIPCIÓN DESCRIPTION
OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
La presente invención se refiere a una válvula intercambiadora de presión, que permite intercambiar fluidos a diferentes presiones, lo que da lugar a un ahorro energético en determinados circuitos hidráulicos. The present invention relates to a pressure exchange valve, which allows fluids to be exchanged at different pressures, which results in energy savings in certain hydraulic circuits.
ANTECEDENTES DE LA INVENCION BACKGROUND OF THE INVENTION
En la actualidad no existe ninguna válvula capaz de intercambiar presiones entre dos fluidos a diferentes presiones, por ejemplo para un fluido a 1 Bar con uno a 200 Bar, lo cual es de utilidad en circuitos hidráulicos, por ejemplo en circuitos que accionen un motor o pistón hidráulico, etc., de tal forma que hay que implementar esta función con un conjunto de válvulas o bombas, y si dicho conjunto de válvulas tiene por ejemplo una capacidad o caudal 5 l/m y queremos una presión de 200 bar, con los sistemas actuales necesitaríamos 1 .1 kw. At present there is no valve capable of exchanging pressures between two fluids at different pressures, for example for a 1 Bar fluid with one at 200 Bar, which is useful in hydraulic circuits, for example in circuits that drive a motor or hydraulic piston, etc., in such a way that this function must be implemented with a set of valves or pumps, and if said set of valves has for example a capacity or flow 5 l / m and we want a pressure of 200 bar, with the systems current we would need 1 .1 kw.
Esto supone un inconveniente, por un lado por la complejidad del conjunto, que requiere de varias válvulas y la sincronización de su funcionamiento, y por otro lado por la alta potencia requerida para realizar la función. This is an inconvenience, on the one hand because of the complexity of the set, which requires several valves and the synchronization of its operation, and on the other hand because of the high power required to perform the function.
Estos inconvenientes se subsanan con la utilización de la válvula de la invención. These drawbacks are remedied with the use of the valve of the invention.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
La válvula intercambiadora de presión de la invención tiene una configuración que soluciona el problema técnico planteado. The pressure exchange valve of the invention has a configuration that solves the technical problem posed.
De acuerdo con la invención, la válvula comprende: According to the invention, the valve comprises:
-una cámara prismática recta con sección en forma de dos círculos que se cortan mediante acuerdos redondeados,  -a straight prismatic chamber with section in the form of two circles that are cut by rounded agreements,
-un obturador rotativo en forma general prismática triangular equilátera, cuyas aristas laterales se encuentran en contacto con las paredes de la cámara para generar tres subcámaras móviles por el interior de la cámara al rotar el obturador, para lo cual son redondeados los acuerdos de los dos círculos de la sección, y provisto en su interior de una cavidad longitudinal de sección circular en cuyo perímetro se encuentra conformado un primer engranaje, -a rotary shutter in general triangular equilateral prismatic form, whose lateral edges are in contact with the walls of the chamber to generate three mobile subchambers inside the chamber when the shutter is rotated, for which the agreements are rounded the two circles of the section, and provided in its interior with a longitudinal cavity of circular section in whose perimeter a first gear is formed,
-un eje de accionamiento central axial (dispuesto en el centro de bisimetría de la cámara) del obturador, que se encuentra dispuesto en el interior de la cavidad longitudinal del mismo y sustentado giratoriamente en las caras extremas de la cámara, y que está provisto de un segundo engranaje perimetral para acoplarse mecánicamente al primer engranaje; siendo dicho segundo engranaje tangente a la cavidad para permitir el giro del obturador por el interior de la cámara al girar el eje, -a central axial drive shaft (arranged in the center of chamber bismetry) of the shutter, which is arranged inside the longitudinal cavity thereof and rotatably supported on the end faces of the chamber, and which is provided with a second perimeter gear to mechanically engage the first gear; said second gear being tangent to the cavity to allow the shutter to rotate inside the chamber when the shaft is rotated,
-un primer par de aberturas que comprende una primera abertura de admisión y una primera abertura de escape, y un segundo par de aberturas que comprende una segunda abertura de admisión y una segunda abertura de escape; encontrándose el primer par dispuesto en un lateral (zona de intersección de los dos círculos de la sección de la cámara) de la cámara y el segundo par enfrentado al primer par; encontrándose cada abertura de admisión de un par dispuesta antes que cada abertura de escape del par opuesto en un decalaje (amplitud angular) igual en ambos casos, ya que entre cada abertura de admisión de un par y cada abertura de escape del par opuesto quedan definidos los flujos de fluido hidráulico,  - a first pair of openings comprising a first intake opening and a first exhaust opening, and a second pair of openings comprising a second intake opening and a second exhaust opening; the first pair disposed on one side (intersection zone of the two circles of the chamber section) of the chamber and the second pair facing the first pair; each intake opening of a pair arranged before each exhaust opening of the opposite pair being in an offset (angular amplitude) equal in both cases, since between each intake opening of a pair and each exhaust opening of the opposite pair are defined hydraulic fluid flows,
-unos conductos que se encuentran conectando la válvula con el sistema hidráulico a controlar o accionar, de forma que por las aberturas de admisión llega el fluido a baja presión, sea de un circuito de retorno o de un depósito de compensación por ejemplo, y por las aberturas de escape se alimenta dicho sistema hidráulico con el caudal y presión obtenido tras el intercambio realizado en la válvula, discurriendo, el flujo de fluido hidráulico entre cada abertura de escape de cada par y la abertura de admisión del par opuesto, encontrándose intercalado el sistema hidráulico en estos flujos, y  -a few ducts that are connecting the valve with the hydraulic system to be controlled or operated, so that through the intake openings the fluid reaches low pressure, either from a return circuit or from a compensation tank for example, and by the exhaust openings said hydraulic system is fed with the flow rate and pressure obtained after the exchange carried out in the valve, the flow of hydraulic fluid flowing between each exhaust opening of each pair and the intake opening of the opposite pair, being intercalated the hydraulic system in these flows, and
-unas bocas de llenado de las subcámaras, que se encuentran dispuestas en la pared de la cámara.  -a mouths for filling the subchambers, which are arranged in the wall of the chamber.
Con esta configuración, la cámara queda dividida en tres subcámaras, de forma que dos de ellas simultáneamente pasan por la zona donde se disponen los pares de aberturas, una de dichas dos subcámaras en ciclo de admisión y otra en ciclo de expulsión. Dichas subcámaras se llenan por las dos aberturas de admisión y una vez la abertura de admisión está cerrada al paso de la arista lateral del obturador y antes de que se abra la de expulsión, es cuando se abre el circuito de alta presión a través de su regulador de flujo (en el momento que el fluido está aislado); cuando se abre la expulsión, al intercambiar dos fluidos con diferentes presiones en una cámara indeformable se ha puesto el fluido de baja presión a alta presión. With this configuration, the camera is divided into three sub-chambers, so that two of them simultaneously pass through the area where the pairs of openings are arranged, one of said two sub-chambers in the admission cycle and the other in the expulsion cycle. Said subchambers are filled by the two intake openings and once the intake opening is closed to the passage of the lateral edge of the shutter and before the expulsion is opened, it is when the high pressure circuit is opened through its flow regulator (at the time the fluid is isolated); when the expulsion is opened, by exchanging two fluids with different pressures in an undeformable chamber, the low pressure fluid has been placed at high pressure.
De esta forma, al accionar la válvula a través del eje se consigue tener un apalancamiento, o sea, al aislar el fluido de baja presión en la cámara y abrir en este instante el circuito de alta presión, consiguiendo cambiar de presión a una masa importante con un mínimo esfuerzo mecánico. Por tanto, con la válvula intercambiadora de presión se permite captar un caudal a presión atmosférica y únicamente generar una presión (por ejemplo 200 bar) para aproximadamente un 10% del caudal que necesitamos -con el consiguiente ahorro energético-, y al introducir los dos fluidos en una cámara indeformable -uno a presión atmosférica y el otro a alta presión, con un 0,7% de compresibilidad que por ejemplo tienen los fluidos oleohidráulicos, con un 9% de líquido que nos ayudará a completar la rotación de la válvula obtendremos un caudal mucho mayor (por ejemplo 5 l/m) a 200 bar con un esfuerzo mecánico mínimo, de por ejemplo 0,2 kw. In this way, when the valve is operated through the shaft, it is possible to have a leverage, or that is, by isolating the low-pressure fluid in the chamber and opening the high-pressure circuit at this moment, managing to change the pressure to an important mass with minimal mechanical effort. Therefore, with the pressure exchange valve it is possible to capture a flow at atmospheric pressure and only generate a pressure (for example 200 bar) for approximately 10% of the flow we need - with the consequent energy saving -, and when introducing the two fluids in an undeformable chamber - one at atmospheric pressure and the other at high pressure, with 0.7% compressibility that for example have oleohydraulic fluids, with 9% of liquid that will help us complete the rotation of the valve we will obtain a much higher flow rate (for example 5 l / m) at 200 bar with a minimum mechanical stress, for example 0.2 kw.
La válvula de la invención se puede aplicar a cualquier circuito que accione un motor o pistón hidráulico. The valve of the invention can be applied to any circuit that drives a motor or hydraulic piston.
Si se desea que exista un empuje continuo o constante del flujo resultante se precisará un conjunto de válvulas iguales unidas por el eje central, con diferente calado, realizando el empuje una válvula en cada sector del giro. BREVE DESCRIPCION DE LOS DIBUJOS If it is desired that there be a continuous or constant thrust of the resulting flow, a set of equal valves joined by the central axis, with different draft, will be required, with the thrust carrying a valve in each sector of the rotation. BRIEF DESCRIPTION OF THE DRAWINGS
La figura 1 muestra una sección transversal de la válvula de la invención La figura 2 muestra una sección longitudinal de la válvula de la invención Figure 1 shows a cross section of the valve of the invention Figure 2 shows a longitudinal section of the valve of the invention
La figura 3 muestra una vista esquemática del acoplamiento de nueve válvulas de la invención en un mismo eje, donde cada válvula está adelantada 20 grados respecto de la precedente. Figure 3 shows a schematic view of the coupling of nine valves of the invention on the same axis, where each valve is advanced 20 degrees from the previous one.
DESCRIPCIÓN DE UNA REALIZACION PRÁCTICA DE LA INVENCIÓN DESCRIPTION OF A PRACTICAL EMBODIMENT OF THE INVENTION
La válvula (1 ) intercambiadora de presión de la invención comprende (ver fig. 1 ): The pressure exchanger valve (1) of the invention comprises (see fig. 1):
-una cámara (2) prismática recta con sección en forma de dos círculos (20, 21 ) que se cortan mediante acuerdos redondeados (28), -a straight prismatic chamber (2) with a section in the form of two circles (20, 21) that are cut by rounded agreements (28),
-un obturador (3) rotativo en forma general prismática triangular equilátera, cuyas aristas (30) laterales se encuentran en contacto con las paredes de la cámara (2) para generar tres subcámaras (22, 23, 24) móviles por el interior de la cámara (2), y provisto en su interior de una cavidad (31 ) longitudinal de sección circular, en cuyo perímetro se encuentra conformado un primer engranaje (32), -a rotary shutter (3) generally equilateral triangular prismatic, whose lateral edges (30) are in contact with the walls of the chamber (2) to generate three sub-chambers (22, 23, 24) movable inside the chamber (2), and provided inside with a longitudinal cavity (31) of circular section, in which perimeter a first gear (32) is formed,
-un eje de accionamiento (4) central axial del obturador (3), que se encuentra dispuesto en el interior de la cavidad (31 ) longitudinal del mismo y sustentado giratoriamente en las caras extremas (25) de la cámara (ver fig. 2), y que está provisto de un segundo engranaje (42) perimetral para acoplarse mecánicamente al primer engranaje (32); siendo dicho segundo engranaje (42) tangente a la cavidad (31 ) para permitir el giro del obturador (3) por el interior de la cámara (2) al girar el eje (4),  -a central axial drive shaft (4) of the shutter (3), which is arranged inside the longitudinal cavity (31) thereof and rotatably supported on the end faces (25) of the chamber (see fig. 2 ), and which is provided with a second perimeter gear (42) to mechanically engage the first gear (32); said second gear (42) being tangent to the cavity (31) to allow the shutter (3) to rotate inside the chamber (2) when turning the shaft (4),
-un primer par (5) de aberturas que comprende una primera abertura de admisión (50) y una primera abertura de escape (51 ), y un segundo par (6) de aberturas que comprende una segunda abertura de admisión (60) y una segunda abertura de escape (61 ); encontrándose el primer par (5) dispuesto en un lateral de la cámara (2) y el segundo par (6) en el lateral enfrentado de la cámara (2); encontrándose cada abertura de admisión (50, 60) de cada par (5, 6) dispuesta antes que cada abertura de escape (51 , 61 ) del par opuesto en un decalaje igual en ambos casos, ya que entre cada abertura de admisión de un par y cada abertura de escape del par opuesto quedan definidos los flujos de fluido hidráulico, - a first pair (5) of openings comprising a first intake opening (50) and a first exhaust opening (51), and a second pair (6) of openings comprising a second intake opening (60) and a second exhaust opening (61); the first pair (5) being arranged on one side of the chamber (2) and the second pair (6) on the side facing the chamber (2); each intake opening (50, 60) of each pair (5, 6) being arranged before each escape opening (51, 61) of the opposite pair in an equal offset in both cases, since between each intake opening of a torque and each exhaust opening of the opposite torque are defined hydraulic fluid flows,
-unos conductos (7) que se encuentran conectando la válvula (1 ) con el sistema hidráulico (80) a controlar o accionar, de forma que por las aberturas de admisión (50, 60) llega el fluido a baja presión, y por las aberturas de escape (51 , 61 ) se alimenta dicho sistema hidráulico (80) con el caudal y presión obtenido tras el intercambio realizado en la válvula (1 ); como se aprecia en la fig. 1 , el flujo de fluido hidráulico discurre entre cada abertura de escape de cada par y la abertura de admisión del par opuesto, encontrándose intercalado el sistema hidráulico en estos flujos; y -unas bocas (9) de llenado de las subcámaras (22, 23, 24), que se encuentran dispuestas en la pared de la cámara (2).  -a few ducts (7) that are connecting the valve (1) with the hydraulic system (80) to be controlled or operated, so that through the intake openings (50, 60) the fluid reaches low pressure, and through the Exhaust openings (51, 61) said hydraulic system (80) is fed with the flow and pressure obtained after the exchange made in the valve (1); as seen in fig. 1, the flow of hydraulic fluid runs between each exhaust opening of each pair and the intake opening of the opposite pair, the hydraulic system being interspersed in these flows; and -a mouths (9) for filling the subchambers (22, 23, 24), which are arranged in the wall of the chamber (2).
Idealmente el decalaje entre las aberturas de admisión (50, 60) de cada par (5, 6) y las de escape (51 , 61 ) del par opuesto está comprendido entre 180 y 140, ya que de esta forma se ha comprobado un mejor funcionamiento de la válvula, y muy preferentemente dicho decalaje es de 150 grados. Ideally, the offset between the intake openings (50, 60) of each pair (5, 6) and the exhaust openings (51, 61) of the opposite pair is between 180 and 140, since in this way a better operation of the valve, and most preferably said offset is 150 degrees.
Por su parte las caras laterales (35) del obturador (3) rotativo son preferentemente convexas, ya que esto mejora los empujes del flujo contra el obturador y viceversa. Opcionalmente se pueden disponer unos reguladores de flujo (8) que se encuentran dispuestos en los conductos (7) para regular o bloquear el flujo. En una realización muy preferente que se muestra en la fig. 3, la válvula (1 ) se encuentra asociada a una pluralidad de válvulas (1 ) iguales adicionales, cuyos ejes de accionamiento (4) se encuentran conectados, encontrándose desfasadas angularmente dichas válvulas, esto es, sus obturadores (3) girados respecto de la válvula precedente y de la sucesiva. Idealmente dicho desfase angular es de 20 grados, precisando 9 válvulas para abarcar 180 grados, y como hay dos cámaras simétricas funcionando, los 360 grados de un giro. Esto impide que haya retroceso por la resistencia que genere cualquier equipo conectado a las aberturas de escape ya que se mantendría una alta presión constante en el conjunto unido por el mismo eje. De todas formas se puede hacer con diferentes decalajes y válvulas interconectadas. On the other hand, the lateral faces (35) of the rotating shutter (3) are preferably convex, since this improves the thrusts of the flow against the shutter and vice versa. Optionally, flow regulators (8) can be arranged which are arranged in the ducts (7) to regulate or block the flow. In a very preferred embodiment shown in fig. 3, the valve (1) is associated with a plurality of additional equal valves (1), whose drive shafts (4) are connected, said valves being angularly offset, that is, their shutters (3) rotated with respect to the preceding and subsequent valve. Ideally said angular offset is 20 degrees, requiring 9 valves to cover 180 degrees, and as there are two symmetrical chambers working, the 360 degrees of a turn. This prevents the recoil due to the resistance generated by any equipment connected to the exhaust openings since a constant high pressure would be maintained in the assembly connected by the same axis. In any case, it can be done with different offsets and interconnected valves.
Descrita suficientemente la naturaleza de la invención, así como la manera de realizarse en la práctica, debe hacerse constar que las disposiciones anteriormente indicadas y representadas en los dibujos adjuntos son susceptibles de modificaciones de detalle en cuanto no alteren el principio fundamental. Sufficiently described the nature of the invention, as well as the manner in which it is carried out in practice, it should be noted that the provisions indicated above and represented in the attached drawings are subject to modifications in detail as long as they do not alter the fundamental principle.

Claims

REIVINDICACIONES
1 .-Válvula (1 ) intercambiadora de presión caracterizada porque comprende: 1.-Valve (1) pressure exchanger characterized in that it comprises:
-una cámara (2) prismática recta con sección en forma de dos círculos (20, 21 ) que se cortan mediante acuerdos redondeados (28), -a straight prismatic chamber (2) with a section in the form of two circles (20, 21) that are cut by rounded agreements (28),
-un obturador (3) rotativo en forma general prismática triangular equilátera, cuyas aristas (30) laterales se encuentran en contacto con las paredes de la cámara (2) para generar tres subcámaras (22, 23, 24) móviles por el interior de la cámara (2), y provisto en su interior de una cavidad (31 ) longitudinal de sección circular, en cuyo perímetro se encuentra conformado un primer engranaje (32),  -a rotary shutter (3) in general equilateral triangular prismatic form, whose lateral edges (30) are in contact with the walls of the chamber (2) to generate three mobile subchambers (22, 23, 24) inside the chamber (2), and provided inside with a longitudinal cavity (31) of circular section, in whose perimeter a first gear (32) is formed,
-un eje de accionamiento (4) central axial del obturador (3), que se encuentra dispuesto en el interior de la cavidad (31 ) longitudinal del mismo y sustentado giratoriamente en las caras extremas (25) de la cámara, y que está provisto de un segundo engranaje (42) perimetral para acoplarse mecánicamente al primer engranaje (32); siendo dicho segundo engranaje (42) tangente a la cavidad (31 ) para permitir el giro del obturador (3) por el interior de la cámara (2) al girar el eje (4),  -a central axial drive shaft (4) of the shutter (3), which is arranged inside the longitudinal cavity (31) thereof and rotatably supported on the end faces (25) of the chamber, and which is provided of a second perimeter gear (42) to mechanically engage the first gear (32); said second gear (42) being tangent to the cavity (31) to allow the shutter (3) to rotate inside the chamber (2) when turning the shaft (4),
-un primer par (5) de aberturas que comprende una primera abertura de admisión (50) y una primera abertura de escape (51 ), y un segundo par (6) de aberturas que comprende una segunda abertura de admisión (60) y una segunda abertura de escape (61 ); encontrándose el primer par (5) dispuesto en un lateral de la cámara (2) y el segundo par (6) en el lateral enfrentado de la cámara (2); y encontrándose cada abertura de admisión (50, 60) de cada par (5, 6) dispuesta antes que cada abertura de escape (51 , 61 ) del par opuesto en un decalaje igual en ambos casos,  - a first pair (5) of openings comprising a first intake opening (50) and a first exhaust opening (51), and a second pair (6) of openings comprising a second intake opening (60) and a second exhaust opening (61); the first pair (5) being arranged on one side of the chamber (2) and the second pair (6) on the side facing the chamber (2); and each intake opening (50, 60) of each pair (5, 6) being arranged before each exhaust opening (51, 61) of the opposite pair in an equal offset in both cases,
-unos conductos (7) que se encuentran conectando la válvula (1 ) con el sistema hidráulico (80) a controlar o accionar, para que por las aberturas de admisión (50, 60) llegue el fluido a baja presión, y por las aberturas de escape (51 , 61 ) se alimente dicho sistema hidráulico (80) con el caudal y presión obtenido tras el intercambio realizado en la válvula (1 ), discurriendo el flujo de fluido hidráulico entre cada abertura de escape de cada par y la abertura de admisión del par opuesto, y encontrándose intercalado el sistema hidráulico (80) en estos flujos, y  -a few ducts (7) that are connecting the valve (1) with the hydraulic system (80) to be controlled or operated, so that the fluid reaches low pressure through the intake openings (50, 60), and through the openings Exhaust (51, 61) said hydraulic system (80) is fed with the flow and pressure obtained after the exchange made in the valve (1), the flow of hydraulic fluid flowing between each exhaust opening of each pair and the opening of admission of the opposite pair, and the hydraulic system (80) being interspersed in these flows, and
-unas bocas (9) de llenado de las subcámaras (22, 23, 24), que se encuentran dispuestas en la pared de la cámara (2). -a mouths (9) for filling the subchambers (22, 23, 24), which are arranged on the wall of the chamber (2).
2.-Valvula (1 ) intercambiadora de presión según reivindicación 1 caracterizada porque las caras laterales (35) del obturador (3) rotativo son convexas. 2. Valve (1) pressure exchanger according to claim 1 characterized in that the lateral faces (35) of the rotating shutter (3) are convex.
3.-Valvula (1 ) intercambiadora de presión según reivindicación 1 o 2 caracterizada porque el decalaje entre las aberturas de admisión (50, 60) de cada par (5, 6) y las de escape (51 , 61 ) del par opuesto está comprendido entre 180 y 140. 3.-Valve (1) pressure exchanger according to claim 1 or 2 characterized in that the The offset between the intake openings (50, 60) of each pair (5, 6) and the exhaust openings (51, 61) of the opposite pair is between 180 and 140.
4. -Valvula (1 ) intercambiadora de presión según reivindicación 3 caracterizada porque el decalaje entre las aberturas de admisión (50, 60) de cada par (5, 6) y las de escape (51 , 61 ) del par opuesto es de 150 grados. 4. Valve (1) pressure exchanger according to claim 3 characterized in that the offset between the intake openings (50, 60) of each pair (5, 6) and the exhaust openings (51, 61) of the opposite pair is 150 degrees.
5. -Valvula (1 ) intercambiadora de presión según cualquiera de las reivindicaciones anteriores caracterizada porque comprende unos reguladores de flujo (8) que se encuentran dispuestos en los conductos (7). 5. - Pressure exchanger valve (1) according to any of the preceding claims characterized in that it comprises flow regulators (8) that are arranged in the ducts (7).
6. -Valvula (1 ) intercambiadora de presión según cualquiera de las reivindicaciones anteriores caracterizada porque se encuentra asociada a una pluralidad de válvulas (1 ) adicionales cuyos ejes de accionamiento (4) se encuentran conectados, encontrándose desfasadas angularmente dichas válvulas. 6. - Pressure exchanger valve (1) according to any of the preceding claims characterized in that it is associated with a plurality of additional valves (1) whose drive shafts (4) are connected, said valves being angularly offset.
7. -Valvula (1 ) intercambiadora de presión según reivindicación 6 caracterizada porque se encuentra asociada con una pluralidad de válvulas (1 ) adicionales formando un conjunto de nueve válvulas con un desfase angular de 20 grados entre ellas. 7. Valve (1) pressure exchanger according to claim 6 characterized in that it is associated with a plurality of additional valves (1) forming a set of nine valves with an angular offset of 20 degrees between them.
PCT/ES2018/070345 2017-05-30 2018-05-09 Pressure exchanger valve WO2018220243A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201730633U ES1185287Y (en) 2017-05-30 2017-05-30 PRESSURE EXCHANGER VALVE
ESU201730633 2017-05-30

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WO2018220243A1 true WO2018220243A1 (en) 2018-12-06

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371654A (en) * 1965-11-13 1968-03-05 Rolls Royce Compound rotary piston type internal combustion engine
US3783615A (en) * 1970-10-29 1974-01-08 C Hubers Expansion engine
US3883273A (en) * 1971-10-29 1975-05-13 Copeland Corp Rotary chamber-type compressor
GB2215403A (en) * 1988-03-10 1989-09-20 Hydrovane Compressor Rotary compressors
JPH08219309A (en) * 1995-02-08 1996-08-30 Kobe Giken:Kk Fluid equivalent distributing valve
WO2016009197A1 (en) * 2014-07-17 2016-01-21 Epitrochoidal Compressors Ltd Epitrochoidal type compressor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371654A (en) * 1965-11-13 1968-03-05 Rolls Royce Compound rotary piston type internal combustion engine
US3783615A (en) * 1970-10-29 1974-01-08 C Hubers Expansion engine
US3883273A (en) * 1971-10-29 1975-05-13 Copeland Corp Rotary chamber-type compressor
GB2215403A (en) * 1988-03-10 1989-09-20 Hydrovane Compressor Rotary compressors
JPH08219309A (en) * 1995-02-08 1996-08-30 Kobe Giken:Kk Fluid equivalent distributing valve
WO2016009197A1 (en) * 2014-07-17 2016-01-21 Epitrochoidal Compressors Ltd Epitrochoidal type compressor

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ES1185287Y (en) 2017-09-11
ES1185287U (en) 2017-06-14

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