WO2022131661A1 - Dispositif de réglage du débit et de distribution d'un fluide dans un circuit de fluide - Google Patents

Dispositif de réglage du débit et de distribution d'un fluide dans un circuit de fluide Download PDF

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Publication number
WO2022131661A1
WO2022131661A1 PCT/KR2021/018508 KR2021018508W WO2022131661A1 WO 2022131661 A1 WO2022131661 A1 WO 2022131661A1 KR 2021018508 W KR2021018508 W KR 2021018508W WO 2022131661 A1 WO2022131661 A1 WO 2022131661A1
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WO
WIPO (PCT)
Prior art keywords
fluid
designed
layers
core layer
refrigerant
Prior art date
Application number
PCT/KR2021/018508
Other languages
English (en)
Inventor
Daniel Zens
Andreas Capelle
Jörn Fröhling
Original Assignee
Hanon Systems
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hanon Systems filed Critical Hanon Systems
Publication of WO2022131661A1 publication Critical patent/WO2022131661A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/325—Expansion valves having two or more valve members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor

Definitions

  • the invention relates to a device for adjusting the flow rate of and for distributing a fluid in a fluid circuit, in particular a refrigerant in a refrigerant circuit of a thermal system of a motor vehicle.
  • the device has a plurality of layers arranged bearing against one another in one direction, multiple valve elements formed in an outer core layer, and multiple conducting layers with flow paths designed as recesses for conducting the fluid, as well as ports designed as an inlet and/or as an outlet for connecting the device to fluid lines of the fluid circuit.
  • refrigerant circuits of air-conditioning systems such that they can be operated both in a mode as a heat pump and in a mode as a refrigeration system, in order to distribute thermal energies within the motor vehicle.
  • heat can be absorbed from the ambient air or from a coolant circuit and can then be transferred to components of the motor vehicle that require heat or to the supply air to the passenger compartment.
  • heat can be absorbed from the passenger compartment or from the supply air to the passenger compartment or from other components and can be transferred for example to the surrounding environment.
  • the heat transfer circuits such as refrigerant circuits and coolant circuits, are connected to one another and to other components of the motor vehicle.
  • motor vehicles that have an electromotive drive referred to as electric vehicles for short
  • motor vehicles that have a hybrid drive consisting of an electric motor and an internal combustion engine referred to as hybrid vehicles for short
  • hybrid vehicles for short usually require a greater supply of cold and/or heat than motor vehicles that are driven only by an internal combustion engine.
  • known motor vehicles that have a purely electric drive or an electric hybrid drive are designed with a coolant circuit, in which the coolant circulating to dissipate the heat emitted by the drive components is conducted through a coolant/refrigerant heat exchanger in order to transfer the heat from the coolant to the refrigerant circulating in the refrigerant circuit.
  • the heat transfer circuits must be designed with a large number of valves, in particular the refrigerant circuit with a large number of refrigerant valves, such as stop valves and expansion valves.
  • each valve has an actuator and must be connected to a control unit.
  • the large number of components, especially valves requires a large number of connecting lines and connection elements, which results in a very complex structure of the thermal system. Besides high costs, this also leads to a considerable weight of the refrigerant circuit.
  • valves especially more than two valves, of a fluid circuit, in particular a refrigerant circuit, internally and thus in an interconnected manner in a common housing.
  • valve block assembly for multiple valves of a refrigerant circuit, in particular expansion valves and/or stop valves.
  • the assembly has a valve block with multiple flow paths for fluids, as well as multiple adjustment units with associated drive units.
  • the valve block is formed in two parts, consisting of a flow path element having the flow paths and a bounding element.
  • valve block assembly is very complicated and complex, in particular due to the required machining by milling and the forming of the blocks.
  • the design of the assembly is very limited due to the way in which it is machined.
  • the object of the invention is to provide a device for adjusting the flow rate of and for distributing at least one fluid in at least one fluid circuit, in particular in a refrigerant circuit, of a thermal system of a motor vehicle.
  • the intention is for functionalities of various components, in particular valves or a heat exchanger, to be combined in the device in order to minimize not only the complexity of the system but also the costs, the weight and the installation space.
  • the intention is also for the device to be able to be configured in a flexible manner depending on requirements.
  • the object is achieved by a device for adjusting the flow rate of and for distributing at least one fluid in at least one fluid circuit, in particular refrigerant in a refrigerant circuit.
  • the device has at least three layers arranged bearing against one another in a direction z, as well as at least two valve elements, which are formed in an outer core layer.
  • the outer core layer represents a layer arranged on the outside of the layers bearing against one another in the direction z.
  • the device also has, in addition to the core layer, at least two conducting layers with flow paths designed as recesses for conducting the fluid, as well as ports designed as an inlet and/or as an outlet for connecting the device to fluid lines of the fluid circuit.
  • the flow paths may be provided in multiple different layers, in particular conducting layers.
  • an outer conducting layer represents a second layer arranged on the outside of the layers bearing against one another in the direction z.
  • the core layer and the outer conducting layer each form with a surface an outer side of the device pointing in the direction z.
  • the device has at least one heat exchange layer with at least one integrated heat exchanger for transferring heat to the fluid circulating in the fluid circuit and/or from the fluid circulating in the fluid circuit.
  • the heat exchange layer advantageously has flow paths designed as recesses for fluids and in each case has at least one port designed as an inlet and/or at least one port designed as an outlet for a heat transfer fluid for connecting to fluid lines of a heat transfer circuit.
  • the heat can be transferred between the fluid circulating in the fluid circuit and a heat transfer medium, for example a refrigerant or a coolant, circulating in the heat transfer circuit and different from the fluid circulating in the fluid circuit.
  • a heat transfer medium for example a refrigerant or a coolant
  • the heat exchanger may also be acted upon by the refrigerant as a heat exchanger internal to the circuit.
  • the heat transfer circuit corresponds to the fluid circuit.
  • the layers are each designed in the shape of a panel.
  • a panel is to be understood to mean a three-dimensional geometric element, the dimensions of which in the directions x and y are much greater than a dimension in the direction z.
  • the dimension in the direction z represents the thickness of the panel, while the dimensions in the directions x and y describe the length and the width of the panel.
  • the directions x, y, z are each oriented orthogonally to one another.
  • the layers are advantageously each arranged bearing against one another at surfaces, in particular at surfaces of broadsides of the panels oriented in the direction z, and are designed substantially with identical outer contours, in particular along narrow sides and longitudinal sides of the panels oriented in the directions x and y, so that, when the panels are stacked in the direction z, a device with continuous outer surfaces is formed.
  • the layers are preferably arranged flush with one another at peripheral sides and thus at the faces of the narrow sides and longitudinal sides.
  • the layers are sealed off from one another in a fluid-tight manner via respective sealing elements arranged between the layers.
  • the layers can preferably be positioned relative to one another via pin elements and/or guide grooves.
  • valve elements for moving within the core layer and for opening and closing flow passages for the fluid through the core layer are each connected to a drive element.
  • Each valve element is preferably coupled via a connecting element to a drive element arranged on an outer side of the core layer.
  • valve elements for moving within the core layer and for opening and closing flow passages for the fluid through the core layer are mechanically connected to one another via at least one kinematic mechanism.
  • Each kinematic mechanism is adjustable via a drive element.
  • Each valve element is preferably coupled via a connecting element to a kinematic mechanism arranged on an outer side of the core layer.
  • each connecting element is fixed in particular at a first end to the drive element or the kinematic mechanism and protrudes at a second end, formed distal to the first end, through a surface into the core layer, in particular is introduced into the core layer through a through-opening formed within the core layer, and is arranged connected to the valve element.
  • the drive element may be designed as an actuator, especially as a linear motor or as a rotary motor with a transmission arrangement, in particular a thread.
  • the transmission arrangement serves to transfer a rotational movement of the connecting element around its longitudinal axis into a translational stroke movement of the valve element, the translational stroke movement corresponding to a linear movement.
  • a drive element provided as a rotary motor is preferably designed as an electric actuator, in particular as a stepper motor or servo motor, which advantageously makes it possible for example to control the angular position.
  • the motor may be designed with a sensor for position determination.
  • the rotational position of the connecting element, determined by the sensor can be continuously transmitted to control electronics, which control the movement of the motor according to adjustable setpoints, such as setpoint angle positions of the connecting element, in a control loop.
  • valve elements are each designed as a needle element or as a ball element.
  • valve elements are preferably configured as components of expansion valves and/or stop valves for a fluid circulating as a refrigerant in a refrigerant circuit.
  • At least one sensor designed as a pressure sensor or as a temperature sensor or as a combined pressure/temperature sensor is designed to be integrated in the device.
  • additional electrical plug-in connections and electrical connection leads can be omitted.
  • the device according to the invention is designed to carry out multiple functions. Functions of individual valves are combined in the device. The device may also carry out the functions of other components, such as the function of a heat exchanger.
  • the advantageous embodiment of the invention enables use of the device for adjusting the flow rate of and for distributing a fluid in a refrigerant circuit of a thermal system, in particular a thermal management system, of a motor vehicle, for example for conditioning an air mass flow, which is to be supplied to a passenger compartment, or a component of a drivetrain.
  • the device then also serves as an adaptive multi-way refrigerant valve for vehicle air conditioning.
  • the refrigerant circuit in which a device is used can be operated with any refrigerant, in particular R1234yf, R1234a, R134a, R744, R404a, R600 or R600a, R290, R152a, R32, and mixtures thereof.
  • the device according to the invention has various advantages:
  • Fig. 1 shows a device for adjusting the flow rate of and for distributing a fluid in a fluid circuit, in particular in a refrigerant circuit of a thermal system of a motor vehicle, having a plurality of valves and respectively associated drive elements, consisting of multiple layers with different inlets and outlets for the fluid, and
  • Fig. 2 shows a device from Fig. 1 with an integrated heat exchanger.
  • Fig. 1 shows, in a perspective projection view, a device 1-1 for adjusting the flow rate of and for distributing at least one fluid in at least one fluid circuit, in particular in a refrigerant circuit of a thermal system of a motor vehicle.
  • the device 1-1 is designed with a plurality of valves and respective drive elements 2a, 2b, 2c, 2d associated with the valves as an integrated refrigerant valve consisting of multiple layers 3, 4, 5, 6, 7 with different inlets 8 and outlets 9a, 9b, 9c, 9d for the fluid.
  • the device 1-1 replaces the functions of multiple valves and reduces the number of multiple valves to one component.
  • valves which are each provided with a valve element for opening and closing flow passages for the fluid, are connected via connecting elements to a drive element 2a, 2b, 2c, 2d, also referred to as an actuator or adjusting element, which is arranged on a core layer 3.
  • the drive elements 2a, 2b, 2c, 2d may each be designed as an electric drive consisting of a stator element with a coil stack and of an encapsulated rotor element with a permanent magnet.
  • the valves may each be configured as stop valves or as expansion valves for the fluid circulating as a refrigerant in the fluid circuit.
  • the core layer 3 forms an outer side of the device 1-1 and contains the core components of the device 1-1, namely the valve elements, designed for example as needle elements or ball elements, and the associated sealing elements.
  • the drive elements 2a, 2b, 2c, 2d are arranged on a first, free surface of the core layer 3, pointing away from the device 1-1, while a second surface, opposite the first surface, is arranged oriented towards conducting layers 4, 5, 6, 7 of the device 1-1.
  • the layers 3, 4, 5, 6, 7 each have the shape of a panel.
  • the panels are each preferably designed as a cuboid element, wherein the dimensions in the directions x and y as the length and width of the panel are much larger than the dimension in the direction z, which represents the thickness of the panel.
  • the opposite surfaces of each layer 3, 4, 5, 6, 7 are arranged in planes spanned by the directions x and y, said planes being oriented parallel to one another and being spaced apart from one another in the direction z.
  • the layers 3, 4, 5, 6, 7 bearing against one another at the surfaces are designed substantially with identical outer contours so that, when the panels are stacked in the direction z, a device 1-1 with continuous outer surfaces is formed.
  • the panels, stacked bearing against one another and oriented with the surfaces facing towards one another, are arranged flush with one another at the peripheral sides and thus at the faces of the narrow sides.
  • the flow paths for the fluid are designed as recesses, so that the layers 4, 5, 6, 7 are also referred to as conducting layers.
  • the conducting layers 4, 5, 6, 7 also have ports designed as an inlet 8 or as an outlet 9a, 9b, 9c, 9d for the fluid for connecting to fluid lines and/or for connecting to components of the fluid circuit, such as a conveyor device, for example a compressor, or heat exchangers.
  • the ports are arranged on a first narrow side and on a second narrow side of the device 1-1, opposite the first narrow side, but depending on requirements may also be formed on at least one of the opposite longitudinal sides of the device 1-1.
  • one inlet 8 and one outlet 9b may be provided within the first conducting layer 4, while two outlets 9a, 9c are formed within the second conducting layer 5 and one outlet 9d is formed within the third conducting layer 6.
  • the fourth conducting layer 7 has a first surface oriented towards the second surface of the conducting layer 6 and bearing against the second surface of the conducting layer 6, and a second, free surface opposite the first surface and pointing away from the device 1-1. Like the core layer 3, therefore, the fourth conducting layer 7 bounds the device 1-1 in the direction z.
  • Further layers may be arranged between the third conducting layer 6 and the fourth conducting layer 7, depending on requirements and on the number of functions and/or ports and valves within the device 1-1.
  • the layers 3, 4, 5, 6, 7 are sealed off from one another in a fluid-tight manner via respective sealing elements arranged between the layers 3, 4, 5, 6, 7.
  • the sealing elements may be designed for example as a moulded seal, O-ring seal or flat seal or as a metal seal, in order to separate the different flow paths of the fluid from one another.
  • the flow paths each extend from an inlet 8 or a valve element to at least one valve element or at least one outlet 9a, 9b, 9c, 9d.
  • Sensors in particular pressure sensors or temperature sensors, in particular for controlling or adjusting the fluid circuit, may also be integrated within the device 1-1.
  • Fig. 2 shows, in a perspective projection view, a further device 1-2 for adjusting the flow rate of and for distributing at least one fluid in at least one fluid circuit, in particular in a refrigerant circuit of a thermal system of a motor vehicle, similar to the device 1-1 shown in Fig. 1.
  • the main difference between the device 1-2 and the device 1-1 shown in Fig. 1 lies in the formation of an integrated heat exchanger 11 within the device 1-2.
  • the otherwise identical components of the devices 1-1, 1-2 are provided with the same reference signs. For the explanation of the components, reference is made to the description relating to Fig. 1.
  • the heat exchanger 11 is integrated within a heat exchange layer 10 which, like the core layer 3 and the conducting layers 4, 5, 6, 7, has the shape of a panel.
  • the heat exchange layer 10 is arranged between the third conducting layer 6 and the fourth conducting layer 7.
  • the heat exchange layer 10 bears with a first surface against the second surface of the third conducting layer 6 and with a second surface, opposite the first surface, against the first surface of the fourth conducting layer 7.
  • the layers 6, 7, 10 are once again designed substantially with identical outer contours so that, when the panels are stacked in the direction z, a device 1-2 with continuous outer surfaces is formed.
  • the panels, stacked bearing against one another and oriented with the surfaces facing towards one another, are arranged flush with one another at the peripheral sides and thus at the faces of the narrow sides.
  • the heat exchange layer 10 Formed within the heat exchanger layer 10 are flow paths for the fluid circulating within the fluid circuit, which is to be adjusted and distributed by the device 1-2, and also for a heat transfer fluid, between which the heat is transferred.
  • the heat exchange layer 10 also has a port designed as an inlet 12 and/or a port designed as an outlet 13 for the heat transfer fluid for connecting to fluid lines of a heat transfer circuit.
  • the ports are arranged together on one narrow side of the device 1-2, but depending on requirements may also be provided on opposite narrow sides or on at least one of the opposite longitudinal sides of the device 1-2.
  • the heat exchanger 11 can be operated with coolant as the heat transfer fluid. If the device 1-2 is used to adjust the flow rate of and to distribute a refrigerant in a refrigerant circuit, the heat exchanger 11 is consequently designed as a refrigerant/coolant heat exchanger. If the device 1-2 is used to adjust the flow rate of and to distribute a coolant in a coolant circuit, the heat exchanger 11 is operated as a coolant/coolant heat exchanger.
  • the heat exchanger 11 can also be operated with refrigerant as the heat transfer fluid. If the device 1-2 is used to adjust the flow rate of and to distribute a refrigerant in a refrigerant circuit, the heat exchanger 11 is consequently designed as a refrigerant/refrigerant heat exchanger. If the same refrigerant acts on both sides of the heat exchanger 11, the heat exchanger 11 is operated as a heat exchanger internal to the fluid circuit, in particular internal to the refrigerant circuit, this also being referred to as an internal heat exchanger.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Multiple-Way Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un dispositif (1-1, 1-2) de réglage du débit et de distribution d'au moins un fluide dans au moins un circuit de fluide, en particulier un fluide frigorigène dans un circuit de fluide frigorigène. Le dispositif (1-1, 1-2) présente au moins trois couches (3, 4, 5, 6, 7) disposées en appui l'une contre l'autre dans une direction z, ainsi qu'au moins deux éléments de soupape qui sont formés dans une couche centrale extérieure (3). L'invention concerne également au moins deux couches conductrices (4, 5, 6, 7) avec des voies d'écoulement conçues comme des évidements pour conduire le fluide, ainsi que des orifices conçus en tant qu'entrée (8) et/ou en tant que sortie (9a, 9b, 9c, 9d) pour relier le dispositif (1-1, 1-2) à des conduites de fluide du circuit de fluide.
PCT/KR2021/018508 2020-12-18 2021-12-08 Dispositif de réglage du débit et de distribution d'un fluide dans un circuit de fluide WO2022131661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020134131.8A DE102020134131A1 (de) 2020-12-18 2020-12-18 Vorrichtung zum Regeln von Durchfluss und zum Verteilen eines Fluids in einem Fluidkreislauf
DE102020134131.8 2020-12-18

Publications (1)

Publication Number Publication Date
WO2022131661A1 true WO2022131661A1 (fr) 2022-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/018508 WO2022131661A1 (fr) 2020-12-18 2021-12-08 Dispositif de réglage du débit et de distribution d'un fluide dans un circuit de fluide

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DE (1) DE102020134131A1 (fr)
WO (1) WO2022131661A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087733B1 (fr) * 1982-03-02 1987-04-29 Wilhelm Friedrich Korner Groupe distributeur pour des installations de chauffage et/ou réfrigération fonctionnant par un agent caloporteur étant capable de circuler
US20080029168A1 (en) * 2006-08-02 2008-02-07 Kinlaw John A Multi-port fluid distribution
US20110265509A1 (en) * 2008-11-04 2011-11-03 Stichting Energieonderzoek Centrum Nederland Multiple-way valve, system for alternately cooling and heating a reactor, and also sorption cooling
JP2017187150A (ja) * 2016-04-08 2017-10-12 株式会社Ｓｏｋｅｎ 統合弁装置
JP2017190946A (ja) * 2017-06-06 2017-10-19 三菱電機株式会社 空気調和装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014105097A1 (de) 2014-04-10 2015-10-15 Halla Visteon Climate Control Corporation Ventilblockanordnung für mehrere Ventile
AU2019315359B2 (en) 2018-07-31 2024-06-20 Fresenius Medical Care Holdings, Inc. Rotary valves for dialysis systems
JP7014196B2 (ja) 2019-02-28 2022-02-01 株式会社デンソー 流路切替装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087733B1 (fr) * 1982-03-02 1987-04-29 Wilhelm Friedrich Korner Groupe distributeur pour des installations de chauffage et/ou réfrigération fonctionnant par un agent caloporteur étant capable de circuler
US20080029168A1 (en) * 2006-08-02 2008-02-07 Kinlaw John A Multi-port fluid distribution
US20110265509A1 (en) * 2008-11-04 2011-11-03 Stichting Energieonderzoek Centrum Nederland Multiple-way valve, system for alternately cooling and heating a reactor, and also sorption cooling
JP2017187150A (ja) * 2016-04-08 2017-10-12 株式会社Ｓｏｋｅｎ 統合弁装置
JP2017190946A (ja) * 2017-06-06 2017-10-19 三菱電機株式会社 空気調和装置

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