Classifications

• • 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
  • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
  • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
• • 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
• • 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
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
  • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
  • B60H1/00899—Controlling the flow of liquid in a heat pump system
• • 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
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
  • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
  • B60H1/00899—Controlling the flow of liquid in a heat pump system
  • B60H1/00907—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant changes and an evaporator becomes condenser
• • 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
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
  • F16K11/056—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with ball-shaped valve members
• • 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
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
  • F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
• • 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
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
  • F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
  • F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
  • F16K11/0876—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle one connecting conduit having the same axis as the spindle
• • 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
  • F16K15/02—Check valves with guided rigid valve members
  • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
  • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
• • 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
  • F16K15/02—Check valves with guided rigid valve members
  • F16K15/04—Check valves with guided rigid valve members shaped as balls
  • F16K15/048—Ball features
• • 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
  • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
  • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
  • F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check 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
  • F16K27/003—Housing formed from a plurality of the same valve elements
• • 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
  • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
• • 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
  • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
• • 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
  • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
  • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
• • 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
  • F25B6/00—Compression machines, plants or systems, with several condenser circuits
  • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
• • 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
  • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
  • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
  • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
  • B60H2001/00935—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising four way valves for controlling the fluid direction
• • 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
  • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
  • F25B2400/04—Refrigeration circuit bypassing means
  • F25B2400/0403—Refrigeration circuit bypassing means for the condenser

Definitions

• the invention relates to a valve arrangement for a cold ittelniklauf GE measure the genus of claim 1 and a refrigerant circuit with heat pump functionality for a vehicle with such a valve assembly.
• Valve arrangements for a refrigerant circuit in a vehicle are known in numerous variations.
• Such a valve arrangement may comprise, for example, at least two ball valves, each having a ball as an adjusting element and an actuator for adjusting the associated ball.
• the valve arrangement can be used, for example, in a heat pump system for a vehicle whose coolant circuit comprises a compressor, a condenser, an indirect condenser, a chiller, an evaporator and two expansion elements.
• heat pump systems Via the valve arrangement with at least two ball valves different operating modes of the refrigerant circuit can be adjusted in electrified vehicles heat pump systems can be used. These have the advantage that the refrigerant circuit can be used to heat the interior of the vehicle.
• shut-off valves are used. These are used for selective switching between a flow through the condenser for the purpose of cooling function or a flow through an indirect condenser for Schufunkti- on.
• a sufficient amount of refrigerants To have tel in each active part of the refrigeration circuit available, also a Kälteffenabsaugfunktion is used. In this case, the refrigerant is withdrawn from the respective inactive heat exchanger and fed to the active region of the refrigerant circuit.
• the refrigerant condenser located at the front of the vehicle is flowed through.
• shut-off valves are used. These are arranged in a circle and have cable outlets between the valves.
• the four valves are identical. They work according to a ball-valve principle. Each of the four valves has a ball that has a hole along one axis.
• the housing has two openings on opposite sides. The ball can be rotated by a servomotor. If the ball is rotated so that its bore is aligned with the openings of the housing, the medium can flow through the valve.
• the valve block is formed in two parts from a flow path element with the flow paths and from a limiting element.
• the boundary element acts as a cover and boundary of the flow paths and further cavities or recesses optionally provided in the flow path element toward the outside.
• a valve with valve body to understand, wherein the valve body is moved via a Ver adjusting element.
• adjusting units ball valves are preferably used.
• the respective valve body is thus designed as a ball and the adjusting element as a pin-like connection to the ball.
• the invention is based on the object to provide a valve assembly for a refrigerant circuit and a refrigerant circuit with heat pump functionality for a vehicle with such a valve assembly, the implementation of various functions, in particular functions of a heat pump, in a refrigeration cycle at significantly lower ren costs and lighter weight and smaller space allows.
• the object is achieved by providing a valve arrangement for a refrigerant circuit having the features of patent claim 1 and by a refrigerant circuit with heat pump functionality for a vehicle having the features of claim 13.
• Advantageous embodiments and further developments of the invention are specified in the dependent claims.
• the at least two ball valves each having a ball as an actuator and an actuator for adjusting the associated ball, in each case as bidirectionally permeable 3-way valve with three terminals abandoned- leads.
• a first ball of a first ball valve has a T-shaped bore, which allows an optional flow through two ports of the three ports and shut off a connection of the three ports or a simultaneous flow through the three ports.
• a second ball of a second ball valve has an L-shaped bore, which allows an optional passage of two ports of the three ports and a shut-off of a connection of the three ports or shutting off the three ports.
• a refrigerant circuit with heat pump functionality for a vehicle which comprises a compressor, a condenser, an indirect condenser, a chiller, an evaporator, two expansion elements and a valve arrangement according to the invention with at least two ball valves, via which different operating modes of the refrigerant circuit are adjustable ,
• the valve arrangement according to the invention it is advantageously possible to represent the different functions of a heat pump with only two ball valves, so that only two actuators are required, which are preferably designed as electric actuators to switch between the various functions of the heat pump.
• valve arrangement according to the invention advantageously reduce the complexity of the refrigerant circuit.
• the refrigerant circuit for the implementation of the heat pump functions can be more robust.
• a chiller is understood below to mean a coolant-refrigerant heat exchanger which acts as a heat source during a heat pump mode and is used in air-conditioning mode for cooling units such as a battery.
• the ball valves may each have a valve block with flow channels in which the terminals are formed and the balls can be mounted rotatably.
• a first connection block having a first connector may connect a second port of the first ball valve to a second port of the second ball valve
• a second connection block having a second connector may connect a third port of the first ball valve to a third port of the second ball valve
• first connection block, the second connection block, the first valve block and the second valve block connected to each other, preferably screwed together.
• first connection block, the second connection block, the first valve block and the second valve block can be completely or partially combined in a common fluid block, so that assembly steps can be advantageously saved.
• a first connection of the first ball valve with a first fluid connection of the valve arrangement and a first connection of the second ball valve can be connected to a second fluid connection of the valve arrangement.
• the first connector may have a third fluid port of the valve assembly and the second connector may have a fourth fluid port of the valve assembly.
• the first ball can have two half-holes and a through hole.
• the axes of the two half-bores and the through-bore can preferably each be perpendicular to each other and meet in the center of the ball.
• the first ball in a first switching position of the first ball valve, which corresponds to a first rotational position of the first ball, the first ball can connect the first port to the second port and shut off the third port and in a second switching position of the first ball valve, which corresponds to a second rotational position corresponds to the first ball, connect the first terminal to the second terminal and to the third terminal and in a third switching position of the first ball valve, which corresponds to a third rotational position of the first ball, connect the first terminal to the third terminal and shut off the second terminal.
• the first ball valve can have compensation means, which provide a defined minimum flow cross-section for the fluid flow during a changeover operation between two shift positions.
• the second ball may have two half-bores.
• the axes of the two half-holes can be perpendicular to each other and meet in the center of the ball.
• the second ball in a first switching position of the second ball valve, which corresponds to a first rotational position of the second ball, the second ball can connect the first port to the second port and shut off the third port and in a second switching position of the second ball valve, which corresponds to a second rotational position corresponds to the second ball, the first port and the second port and the third port shut off and in a third switching position of the second ball valve, which corresponds to a first rotational position of the second ball, connect the first port to the third port and shut off the second port.
• a refrigerant charge or a flushing of different paths of the refrigerant circuit can be adjusted.
• the ball valves can be switched in a predetermined order to switch between the operating modes of the refrigeration ittelnikanks. Via the first ball valve with the T- shaped bore can be flowed through either the capacitor or the indirect capacitor or both at the same time.
• the second ball valve with the L-shaped bore allows the extraction of the refrigerant either from the condenser or the indirect condenser or is completely closed.
• the switching positions of the two ball valves are coordinated so that, for example, no combined switching position of the two ball valves is possible, in which flows through the first ball valve only the indirect capacitor and at the same time the indirect condenser is sucked through the second ball valve. This would cause a short circuit.
• a combined switching position of the two ball valves is prevented, in which flows through the first ball valve, only the condenser and at the same time the condenser is sucked through the second ball valve. This would also cause a short circuit.
• FIG. 1 shows a schematic circuit diagram of an exemplary embodiment of a refrigerant circuit according to the invention for a vehicle with heat pump functionality
• FIG. 2 shows a schematic circuit diagram of an exemplary embodiment of a valve arrangement according to the invention for the refrigerant circuit of FIG. 1,
• FIG. 3 is a schematic perspective view of the valve assembly according to the invention of FIG. 2 from above, a schematic perspective view of the inventive valve assembly of Figures 2 and 3 from below, a schematic perspective view of a first ball of a first ball valve of the valve assembly according to the invention of FIGS. 2 to 4, and a schematic perspective view of a second ball of a second ball valve Valve arrangement according to the invention from FIGS. 2 to 4.
• a refrigerant circuit 1 for a vehicle with heat pump functionality in the exemplary embodiment shown has a compressor 3, a condenser 5, an indirect condenser 7, a chiller 8, an evaporator 9, two expansion elements EO1, EO2 and a valve arrangement according to the invention 10 with at least two ball valves 20, 30, over which various modes of the refrigerant circuit 1 are adjustable.
• the individual components of the refrigerant circuit 1 are interconnected as shown.
• valve arrangement 1 0 for the refrigerant circuit 1 in the exemplary embodiment shown has two ball valves 20, 30, which each have a ball 24, 34 as adjusting element and an actuator 28, 38 for adjusting the associated ball 24 34.
• two ball valves 20, 30 are each designed as a bidirectionally flow-through 3-way valve with three connections A1, B1, C1, A2, B2, C2.
• a first ball 24 of a first ball valve 20 has a T-shaped bore 26, which is an optional flow through two ports A1, B1; A1, C1 of the three connections A1, B1, C1 and a blocking of a connection B1, C1 of the three connections A1, B1, C1 or a simultaneous one Flow through the three ports A1, B1, C1 allowed.
• a second ball 34 of a second ball valve 30 has an L-shaped bore 36, which an optional flow through two ports A2, B2; A2, C2 of the three connections A2, B2, C2 and a blocking of a connection B2, C2 of the three connections A2, B2, C2 or a blocking of the three connections A2, B2, C2.
• the ball valves 20, 30 each have a valve block 22, 32 with flow channels, in which the connections A1, B1, C1, A2, B2, C2 are formed and the balls 24, 34 are rotatably mounted.
• a first connection block 12 with a first T-shaped connection piece 12.1 connects a second connection B1 of the first ball valve 20 to a second connection B2 of the second ball valve 30.
• a second connection block 14 connects to a second T-shaped connection piece 14.1 a third connection C1 of FIG first ball valve 20 with a third port C2 of the second ball valve 30.
• the first connecting block 12, the second connecting block 14, the first valve block 22 and the second valve block 32 are bolted together via screw not shown.
• first connection block 12, the second connection block 14, the first valve block 22 and the second valve block 32 may alternatively be completely or partially combined in a common fluid block.
• the actuators 28, 38 are designed as servomotors, which are coupled to the balls 24, 34 via shafts (not shown). About the waves of the respective actuator 28, 38, the associated ball 24, 34 rotate about its axis of rotation in the various switching positions.
• a first connection A1 of the first ball valve 20 is connected to a first fluid connection P1 of the valve arrangement 10.
• a first connection A2 of the second ball valve 30 is connected to a second fluid connection P2 of the valve arrangement 10.
• the first T-shaped connecting piece 12.1 has a third fluid port P3 of the valve arrangement 10
• the second T-shaped connecting piece 14.1 has a fourth fluid port P4 of the valve arrangement 10.
• the first ball 24 has two half-bores 26.1, 26.2 and a through-bore 26.3.
• the axes of the two half-bores 26.1, 26.2 and the through-hole 26.3 are each perpendicular to each other and meet in the center of the ball.
• the second ball 34 has two half-bores 36.1, 36.2.
• the axes of the two half-bores 36.1, 36.2 are perpendicular to each other and meet in the ball center.
• the first ball 24 in a first switching position of the first ball valve 20, the first ball 24 connects the first port A1 to the second port B1 and blocks the third port C1.
• the first ball 24 in a current second switching position of the first ball valve 20, the first ball 24 connects the first port A1 to the second port B1 and to the third port C1.
• the first ball 24 connects the first port A1 to the third port C1 and blocks the second port B1.
• the first port A1 acts as an intake port
• the second port B1 and the third port C1 each act as an exhaust port.
• the first port A1 is independent of the switching position with an opening of a first ten half-bore 26.1 connected.
• the second connection B1 is connected in the first switching position with an opening of a second half-bore 26.2 and in the second switching position with an opening of the through-bore 26.3.
• the third terminal C1 is connected in the third switching position with the opening of the second half-bore 26.2 and in the second switching position with an opening of the through-bore 26.3.
• the second ball 34 in a first switching position of the second ball valve 30, the second ball 34 connects the first port A2 to the second port B2 and blocks the third port C2. In a current second switching position of the second ball valve 30, the second ball 34 blocks the first port A2 and the second port B2 and the third port C2. In a third switching position of the second ball valve 30, the second ball 34 connects the first port A2 to the third port C2 and blocks the second port B2.
• the first fluid connection P1 of the valve arrangement 10 is connected to a high-pressure side of the compressor 3.
• the second fluid port P2 of the valve arrangement 10 is provided with a suction pressure side of the compressor 3, wherein a check valve RSV is arranged between the second fluid port P2 and the compressor 3.
• the third fluid port P3 of the valve assembly 10 is connected to a first port of the condenser 5.
• the fourth fluid connection P4 of the valve arrangement 10 is connected to a first connection of the indirect capacitor 7.
• a second connection of the capacitor 5 is connected via a check valve RSV to a first connection of the expansion element EO, which is designed as an expansion valve.
• a second connection of the indirect capacitor 5 is likewise connected via a check valve RSV to the first connection of the expansion element EO.
• a second connection of the expansion organ EO is with connected to a first port of the evaporator.
• a second port of the evaporator 9 is connected to the suction pressure side of the compressor 3.
• a cooling mode of the Kaltem ittelnikanks 1 is set. Therefore, in the cooling mode, the first port of the condenser 5 is connected to and flows through the high pressure side of the compressor 3. At the same time, the first port of the indirect condenser 7 is connected to the suction pressure side of the compressor 3 and exhausted by this compressor.
• a heating mode of the Kaltem ittelnikanks 1 set.
• the first port of the indirect condenser 7 is connected to and flows through the high-pressure side of the compressor.
• the first port of the condenser 5 is connected to the suction pressure side of the compressor 3 and exhausted by the same.
• a simultaneous flow through the capacitor 5 and the indirect capacitor. 7 set.
• the ball valves 20, 30 are switched in a predetermined order in order to switch between the operating modes of the refrigeration ittelnikanks 1.
• the combined Switch positions of the two ball valves 20, 30 so matched to each other, for example, that no combined switching position of the two ball valves 20, 30 is possible, in which flows through the first ball valve 20, only the indirect capacitor 7 and at the same time the indirect condenser 7 sucked off via the second ball valve 30 is, or in which via the first ball valve 20, only the capacitor 5 flows through and at the same time the condenser 5 is sucked off via the second ball valve 30.
• embodiments of the cold-pressing circuit 1 make it possible to change the operating mode without the compressor 3 having to be switched off.
• the first ball valve 20 balancing means not shown in detail, which provide a defined minimum flow cross-section for the fluid flow during a switching between two switching positions available.
• the first ball 24, for example, between the opening of the second half-bore 26.2 and the openings of the through hole 26.3 have bypass channels, which are introduced as grooves and / or notches in a jacket of the first ball 24.
• at least one defined minimum flow cross-section for the fluid flow is ensured during the ball rotation from the first switching position via the second switching position to the third switching position and vice versa at each instant.
• bypass channels in this case fluidly connect the two openings of the through hole 26.3 with the opening of the second half-bore 26.2.
• the effective minimum flow cross-section during the rotation process can be influenced.
• at least the openings of the through-bore 26.3 and the opening of the second half-bore 26.2 each have a larger diameter than the second terminal B1 and the third terminal C1.
• the change from the cooling mode to the heating mode will be described by way of example.
• the first ball valve 20 in its first switching position and the second ball valve 30 is in its third switching position.
• the condenser 5 flows through and the indirect condenser 7 is sucked off.
• the second ball valve 30 is switched to its second switching position, in which all ports A2, B2, C2 of the second ball valve are shut off, so that no further refrigerant is sucked.
• the first ball valve 20 is switched to its second switching position, in which the capacitor 5 and the indirect capacitor 7 can be flowed through.
• the first ball valve 20 is switched to its third switching position, in which only the indirect capacitor 7 is flowed through.
• the second switching valve 30 is switched to its first switching position, in which the condenser 5 is sucked off.

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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)

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• 2017
  • 2017-07-12 DE DE102017211891.1A patent/DE102017211891A1/de not_active Withdrawn
• 2018
  • 2018-06-21 JP JP2020501513A patent/JP6998446B2/ja active Active
  • 2018-06-21 WO PCT/EP2018/066627 patent/WO2019011617A1/de unknown
  • 2018-06-21 KR KR1020207004154A patent/KR102343522B1/ko active IP Right Grant
  • 2018-06-21 CN CN201880046153.6A patent/CN110914081B/zh active Active
  • 2018-06-21 EP EP18733849.6A patent/EP3652005A1/de not_active Withdrawn
  • 2018-06-21 US US16/629,110 patent/US12055229B2/en active Active

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