WO2013041390A1 - Expansionsventil - Google Patents
Expansionsventil Download PDFInfo
- Publication number
- WO2013041390A1 WO2013041390A1 PCT/EP2012/067484 EP2012067484W WO2013041390A1 WO 2013041390 A1 WO2013041390 A1 WO 2013041390A1 EP 2012067484 W EP2012067484 W EP 2012067484W WO 2013041390 A1 WO2013041390 A1 WO 2013041390A1
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- WO
- WIPO (PCT)
- Prior art keywords
- regulating
- expansion valve
- biasing
- valve according
- adjusting
- Prior art date
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Classifications
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- 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
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
- F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
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- 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
- F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
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- 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
- F25B2400/18—Refrigerant conversion
Definitions
- the invention relates to an expansion valve for refrigeration systems, in particular vehicle air conditioning systems, according to the preamble of claim 1.
- a generic expansion valve which has a housing with a first inlet opening and a first outlet opening for a coolant, which are connected to each other by a first coolant channel.
- the coolant channel comprises a flow area of a predetermined size, which communicates with a regulation chamber.
- a regulating device comprising a regulating screw which receives a regulating member and a valve closing member, the latter abutting against and opening and closing a valve seat disposed at the flow opening.
- a thermal actuator in particular a thermal head, is provided, which actuates the regulating device by means of a transmission pin.
- a second inlet opening and second outlet opening are provided in the housing, which are connected to a coolant channel.
- the first outlet opening and the second inlet opening of the housing are provided on the evaporator side.
- the first inlet opening and the second outlet opening are provided in the vehicle engine side.
- expansion valves are used in air conditioning systems, in particular vehicle air conditioning systems.
- the expansion valve Prior to the delivery of such expansion valves to the manufacturing plant for subsequent installation in air conditioning systems, the expansion valve is preset with the thermal actuator, that is, a setting adapted to the coolant used is set. Due to such a presetting or a setting, the valve opening characteristic curve can be set exactly as a function of the refrigerant superheat detected by the thermal head at the outlet of the evaporator.
- the expansion valves for the refrigerants R134a and R1234yf can basically be identical in design, but generally require a setting that is adapted to the refrigerant used.
- the invention has for its object to propose an expansion valve, which allows a simple adjustment of the setting, especially before installation in an air conditioner to the respective used cooling medium in the air conditioning and thus the provision of two expansion valves for the refrigerant R134a and R1234yf is unnecessary.
- the expansion valve according to the invention has a pretensioning device acting directly or indirectly on the regulating valve, by means of which at least two presetting positions differing from one another can be set with predefined pretensioning forces. It is provided that the expansion valve has a first default - for example, on the coolant R134a - and is adjustable by actuation of the biasing means in a simple manner at least to the second position of the default, so that the predetermined for the second preset biasing force of Regulierele-Mentes is adjustable and the setting for another coolant, such as R1234yf, is adjustable. As a result, a simple adaptation of the setting to the coolant to be used can take place immediately prior to installation of the expansion valve. At the same time the logistical effort is reduced because only one type expansion valve is to be delivered and immediately before installation or installation in the air conditioner or in the vehicle the appropriate default is made by the worker.
- the biasing means is formed by the adjusting screw and thus acts directly on the regulating element.
- the pretensioning device can be integrated in the regulating device or the regulating screw simultaneously form the pretensioning device.
- markings for the at least two presetting positions are attached to an end face of the housing and to an end face of the regulating screw.
- at least two different positions of the regulating screw can be marked and visual monitoring can be made possible when changing the first presetting into the second presetting.
- the setting can be changed by a rotation of the regulating screw so that the expansion valve does not require any additional component components in order to enable at least two different settings.
- colored markings, stickers or indentations may be provided, which show the first or second presetting to each other at the corresponding positioning and at the same time change the biasing force of the regulating.
- the adjustment of the setting by means of a tool is performed manually or automatically or by means of a trained adjustment device.
- a predefined angle of rotation is provided. This can be limited by a mechanical stop both with a manual and with a machine twisting.
- the angle of rotation can be monitored and defined by a sensor, such as an incremental encoder or an angle encoder.
- a rotary decoupling device is provided at least between the regulating screw and the regulating element.
- the expansion valve in addition to the adjusting screw on the regulating acting on a biasing device, by which at least two different presetting positions and defined biasing forces of the regulating element are adjustable.
- This biasing means acts indirectly via the transmission pin on the regulating element.
- the regulating screw in the arrangement and function of a well-known adjusting screw as part of the regulating device and the presetting device is additionally arranged in the expansion valve.
- biasing device provides that this acts on the transmission pin.
- the biasing device may be arranged in the second coolant channel or in a recess in the housing which, for example, adjoins the second coolant channel.
- the pretensioning device can also be arranged in a region between a throttle point and a coolant outlet opening leading to the evaporator.
- the biasing means may also engage the transmission pin in an area in the housing between the coolant outlet side in front of the evaporator and the second coolant channel.
- An alternative embodiment for positioning the pretensioner provides that this acts on the printhead of the actuator. Again, the biasing device acts indirectly. This can in turn be provided an arrangement of the biasing means in the second coolant channel and a simple attachment possible.
- a further alternative embodiment of the pretensioning device provides that it acts on the valve in the regulating chamber.
- the valve comprises at least the regulating element, the valve closing member and preferably a damping sleeve, which receives the valve closing member and engages or engages over one end of the regulating element.
- the damping sleeve can still be performed with damping straps in the regulator.
- the biasing device may be provided on the high pressure side.
- the biasing device preferably has at least one biasing element which has the same effective direction as the regulating element.
- the biasing element which is preferably designed as a spring element, acts in the same direction as the regulating element.
- the biasing member may also act in the opposite direction.
- a biasing device engaging in the transmission pin has at least one biasing element and an adjusting element, which are positioned via a securing element to the transmission pin and adjustable in at least two presetting positions for adjusting the at least two biasing forces.
- This arrangement allows a simple and constructive design of the biasing device.
- Such a biasing device can be formed by only two to three additional components that are easy to install in the coolant channel.
- the adjusting member - in particular to the longitudinal axis of the transmission pin - vernavbar.
- the adjustment member may consist of a detent pin or retaining clip which adjusts a first biasing force at a position provided on the transmission pin and a second biasing force after removal from the transmission pin.
- This embodiment has the advantage that a subsequent change of the preset biasing force is no longer possible. Likewise, a simple handling and beyond a visual inspection before assembly of the air conditioning is possible.
- a further preferred embodiment of the biasing device provides that the biasing element surrounds the transmission pin and with one end on the housing of the expansion valve, in particular in the coolant channel, rests and engages with the opposite end to the adjusting member or securing member.
- biasing device comprises an electromagnetic device which acts on the transmission pin and at least one further biasing position is adjustable. It can thereby be made possible that the expansion valve is provided in a first setting or presetting and the electrical contacting and activation via the electromagnetic device can then be set to the second or further pretensioning position as a function of the current supply.
- This alternative embodiment of the biasing device for positioning in the regulating chamber preferably comprises a lifting plate, which is arranged between the adjusting screw and the regulating element and is adjustable with a provided in the adjusting screw and operable from the outside adjusting member.
- a lifting plate which is arranged between the adjusting screw and the regulating element and is adjustable with a provided in the adjusting screw and operable from the outside adjusting member.
- FIG. 1 shows a schematic sectional view of an expansion valve in a schematically illustrated air conditioning system
- FIG. 2 shows a schematic view from below of an end face of the housing of the expansion valve according to FIG. 1,
- FIG. 3 shows a schematic sectional illustration of a first alternative embodiment of an expansion valve to FIG. 1,
- Figure 4 is a schematic sectional view of another alternative embodiment of the expansion valve to Figure 1 and
- FIG. 5 is a schematic sectional view of another alternative embodiment of the expansion valve of FIG. 1.
- FIG. 1 shows a first embodiment of an expansion valve 11 according to the invention.
- This expansion valve 11 comprises a housing 12 having a first coolant inlet opening 14, a first coolant outlet opening 16 and a coolant channel 17 connecting the first coolant inlet opening 14 and the first coolant outlet opening 16.
- a second coolant inlet opening 18 and a second coolant outlet opening 19 are furthermore provided. which are interconnected by a second coolant channel 21.
- the outlet side of a condenser 22 is connected, whose inlet side is connected to the outlet side of a compressor 23.
- the inlet side of the compressor 23 is in communication with an exit side of an evaporator 24.
- the housing 12 of the expansion valve 11 has a housing portion 26 which extends into the housing interior and into a part of the refrigerant passage 17.
- a regulating chamber 39 is formed, on which a regulating device 25 can be inserted.
- This regulating device 26 comprises at least one regulating screw 27, a regulating element 33 and a valve closing member 38.
- the regulating screw 27 is for example threadedly secured in the housing section 26 and preferably has at least one sealing element 28 in order to seal the regulating chamber 39 from the environment.
- the regulating screw 27 is formed as a hollow cylindrical body and has at one end a receiving portion 32 for arranging a valve 35, in particular ball valve on.
- the valve 35 comprises at least one regulating element 33, a valve closing member 38 and preferably a damping sleeve 36, on which damping tabs 37 may be provided.
- the adjusting screw 37 receives the regulating element 33, which is preferably designed as a spring element.
- the regulating element 33 is supported on the one hand at the bottom 34 of the adjusting screw 27 and is located opposite to the damping sleeve 36, which receives the valve closing member 38.
- the damping sleeve 36 is axially displaceable in the receiving portion 32 of the adjusting screw 27, in particular by spring-like damping tabs 37, performed.
- the valve closing member 38 abuts in a valve seat 41 at a flow opening 42, which forms part of the first coolant channel 17.
- a thermal actuator 45 which drives a transmission pin 46, the free ends of which abut the valve closure member 38.
- the thermal actuator 45 is formed as a so-called thermal head, which comprises a chamber 49 which is closed by a membrane 48.
- a control charge is introduced which, depending on the suction gas temperature or the pressure of the refrigerant, which is passed from the evaporator 24 to the compressor 27 causes a corresponding change in volume, so that the membrane 48 acts via a print head 50 on the transfer pin 46 and the valve-closing member 48 is transferred from the closed position to the open position in relation to the valve seat 41.
- the high-pressure side coolant which comes as a 100% liquid from the condenser 22, via the first coolant inlet port 14 to the control chamber 39, expanded at the valve seat 42 and the throttle body and flows through the passage opening 42, so that a two-phase mixture over the first Coolant outlet 16 is low pressure side led to the evaporator 24.
- the actuator 45 of the adjusting screw 27 is fixed to the housing 12 opposite and the transfer pin 46 passes through the housing 12, that is, that this transfer pin 46 passes through a portion of the second coolant passage 21 and the seconddeffenauslassö réelle 19 and is disposed within the passage opening 42 to act on the valve closure member 38.
- Such expansion valves 11 are used to control an air conditioner and regulate an optimal evaporator charge, that is, the expansion valve 11 controls the refrigerant superheat at the outlet of the evaporator 24 in a narrow range.
- the working range in particular the start of opening at the throttle point, in which the valve closing member 38 is lifted from the valve seat 41, exactly.
- a corresponding stroke is required, which is generated by the actuator 45.
- a control medium is introduced into the chambers 49, the pressure of which is dependent on the suction gas temperature of the refrigerant which flows through the second coolant channel 21.
- This control medium pressure acts on the membrane top of the membrane 48, while the operating refrigerant pressure is applied to the membrane side. Both pressures counteract each other on an equal area of the membrane 48. This results in a force in the opening direction, which shifts the valve closure member 38 against the restoring force of the biasing member 33.
- Each static valve opening is therefore a state of equilibrium between these forces in the expansion valve 11, which can be adjusted or shifted by the biasing element 33.
- the adjusting screw 27 is screwed in a predetermined position to the housing portion 26 in the regulating chamber 39, so that a first presetting or a first setting takes place. This setting can be provided, for example, for the coolant R134a.
- FIG. 2 shows a first embodiment for setting two settings.
- two markings 51, 52 are mounted on the end face 62 of the housing 12, which are provided to identify the first preset position 53 and further preset positions 54.
- a marking 51, 52 is introduced on the front side 61 of the regulating screw 57. If the two markings 51 on the housing 12 and the adjusting screw 57 are assigned to one another or to one another, the setting for the first presetting position 53 is set.
- the two markings 52 on the end face 62 of the housing 12 and the end face 61 of the adjusting screw 52 are not opposite to each other or associated with each other.
- the markings 52 are assigned to each other or aligned, for example by rotation of the regulating screw 27.
- markings 51, 52 can be given a simple visual recognition for the set setting. Instead of strokes for the markings 51, 52, as shown in the exemplary embodiment, further symbols, geometries or markings may be provided. Additionally or alternatively, colored markings can be formed so that the markings 51 on the end face 62 of the housing 12 and the end face 61 of the regulating screw 27 have the same color and deviating in color to the marks 52 are shown.
- This change in the setting of the setting can be made manually by the operator or by a setting device.
- the change of the setting from the first presetting position 53 to the second presetting position 54 may be made automatically by an adjusting device which detects the position of the regulating screw 27 to the housing 12 and performs a predefined rotation of the regulating screw 27. In this case, additional markings may be dispensable.
- a pretensioning device 56 is integrated into the adjusting screw 37, ie no additional components are provided, but the regulating screw 27 is further screwed in relative to the housing section 26 Biasing force of the first preset position 53 of the regulating element 33 in a further preset position 54 to change.
- optical markings 51 can be provided on an end face 61 of the adjusting screw 27 and adjacent to the end face 62 of the housing 12, which indicate to the user that the first or second setting is set.
- a special adjustment device may be provided, on which the expansion valve 11 is placed or vice versa, that the device is placed on the expansion valve to perform a mechanical adjustment.
- a marking can also be introduced that the setting has been made to the second or further setting or a backup is provided that the setting is no longer changed.
- FIG. 3 shows an alternative embodiment to FIG. This embodiment differs from FIG. 1 in that the regulating device 25 deviates from FIG. 1.
- the adjusting screw 27 is shorter in relation to that in Figure 1, whereby the damping sleeve 36 with the disposed thereon Dämmungslaschen 37 directly on the housing portion 26 of the Regulierraums 39, that is, the damping sleeve 36 is guided in the control chamber up and down movable.
- a rotary decoupling device 71 is provided between the regulating element 33 and the bottom 34 of the regulating screw 27.
- This rotational decoupling device 71 makes it possible that when changing, for example, the first preset position 53, a second presetting position 54 via a rotational movement of the adjusting screw 27 takes place and rotation of the regulating element 33 is prevented.
- the bearing 73 is formed for example as a hemisphere, which is accommodated in a preferably conically shaped recess which forms the bearing element 74.
- This represents a structurally simple embodiment. Further alternative embodiments for forming a rotary decoupling device 71 are also possible in order to achieve that upon rotation of the adjusting screw 37 minimal rotational forces are transmitted to the regulating element 33.
- rotary decoupling device 71 may be formed for example by two mutually arranged discs which are rotatably mounted to each other or by a rotatably arranged to the bottom 34 of the adjusting screw disc, the disc preferably has hemispherical or punctiform elevations to a friction reduced contact with the ground enable.
- the embodiment according to FIG. 3 corresponds to the expansion valve according to FIG. 1.
- a pretensioning device 56 is provided, which is arranged, for example, in the second coolant channel 21.
- This biasing device 56 includes a biasing member 57 which is preferably formed as a compression spring element and surrounds the transmission pin 46. Furthermore, a securing element 58 and between the securing element 58 and the biasing member 57, a setting member 59 is attached to the transmission pin 46. The effective direction of the biasing force corresponds to that of the regulating element 33.
- This pretensioning device 56 is designed in such a way that it does not influence the pretensioning force of the regulating element 33 in a starting position or in a first presetting 53.
- the adjusting member 59 can be rotatable about the longitudinal axis of the transmission pin 46, so that for example via axially formed nubs an increased biasing force applied to the biasing member 57 and the working time is shifted accordingly.
- a latch can be provided in both settings of the adjusting member 59.
- the adjusting member 59 may alternatively be arranged between the biasing member 57 and the housing portion 26 in the second coolant channel 21.
- the adjusting member 59 may be formed in the form of a retaining clip, which is completely withdrawn according to the arrow shown in Figure 4, to take the second preset.
- Both embodiments have the advantage that they allow visual monitoring of the presetting.
- an integration in the housing 12 is provided and allows a selection of the presetting immediately before the installation of the expansion valve in the air conditioning or air conditioning components.
- the arrangement of the biasing means 56 in the second coolant channel and the small size of the biasing means 56 is not a deterioration in the form of unallowable pressure drop or from the housing.
- the pretensioning device 56 may be supported on the print head 50 instead of on the coolant channel.
- a tension spring can be used instead of a compression spring.
- the biasing device can also be designed such that the biasing element comprises an opposite effective direction to the regulating element.
- the pretensioning device 56 can also be arranged in the first coolant channel 17 before or after the throttle point formed by the valve seat 42 and the valve closing member 38.
- the expansion valve 11 can also have an adjusting device 35 according to FIG. 3 in an alternative embodiment according to FIG.
- FIG. 5 shows an alternative embodiment of the expansion valve 11 with an additional pretensioning device 56.
- This biasing means 56 is integrated in the regulating device 25 and has a pressure plate 65 which is arranged between the bottom 34 of the regulating screw 27 and the regulating element 33.
- an adjusting element 66 is provided, which is preferably operable from the outside and acts directly on the pressure plate 65.
- a stop may be provided in the receiving section 32, so that upon insertion of the adjusting element 66, the pressure plate 65 again assumes a defined position in order to safely assume the second presetting.
- the adjusting element 66 which is formed for example as a stud, protrudes at a predetermined distance from the end face 61 and assumes the first preset and the flushing of the end face 61 of the adjusting screw to the end face 62 of the housing 12, the second preset taken is, so that again a visual inspection option is given.
- the adjusting member 26 is sealed to the adjusting screw 27 and the bottom 34 of the regulating screw 27. This can be possible by way of seals or a closure cap which can be arranged on the end face 61 of the regulating screw 27.
- biasing device 56 may also be provided in a regulating device 25 according to FIG.
- the above-described embodiments of the expansion valves 11 thus preferably provide two different default settings of operating points, so that a corresponding adjustment to the refrigerant to be used is made possible immediately before installation of the expansion valve, whereby the operating range of the expansion valve 11, ie the overheating area at the evaporator outlet, is adjustable for the respective refrigerant.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims (16)
- Expansionsventil für Kälteanlagen, insbesondere Fahrzeugklimaanlagen,- mit einem Gehäuse (12),- mit einer ersten Kühlmitteleinlassöffnung (14) und einer ersten Kühlmittelauslassöffnung (16), die mit einem ersten Kühlmittelkanal (17) verbunden sind, der eine Durchflussöffnung (42) umfasst, die mit einem Regulierraum (39) in Verbindung steht,- mit einer in dem Regulierraum (39) angeordneten Reguliervorrichtung (25), die eine Regulierschraube (27) umfasst, welche ein Ventil (35), das zumindest ein Regulierelement (33) und ein Ventilschließglied (39) umfasst, aufnimmt, wobei das Ventilschließglied (39) einen an der Durchflussöffnung (42) angeordneten Ventilsitz (41) öffnet und schließt,- mit einer thermischen Betätigungseinrichtung (45), welche mittels eines Übertragungsstiftes (46) die Reguliervorrichtung (25) betätigt, und- mit einer zweiten Kühlmitteleinlassöffnung (18) und einer zweiten Kühlmittelauslassöffnung (19), die mit einem zweiten Kühlmittelkanal (21) verbunden sind,dadurch gekennzeichnet,- dass eine auf das Regulierelement (33) wirkende Vorspanneinrichtung (56) vorgesehen ist, durch welche zumindest zwei voneinander abweichende Voreinstellpositionen (53, 54) mit jeweils vordefinierten Vorspannkräften für einen Öffnungs- und Schließzeitpunkt des Ventilschließgliedes (38) durch eine vorgegebene Einstellbewegung einstellbar sind.
- Expansionsventil nach Anspruch 1, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) durch die Regulierschraube (27) ausgebildet ist.
- Expansionsventil nach Anspruch 2, dadurch gekennzeichnet, dass an der äußeren Stirnseite (61) der Regulierschraube (27) Markierringe (51, 52) und benachbart dazu an der Stirnseite (62) des Gehäuses (12) Markierungen (51, 52) vorgesehen sind, durch welche zumindest zwei Voreinstellpositionen (53, 54) gekennzeichnet sind.
- Expansionsventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Regulierschraube (27) um einen vordefinierten Winkel maschinell oder manuell von der einen Voreinstellposition (53; 54) in die andere Voreinstellposition (54; 53) überführbar ist.
- Expansionsventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zumindest zwischen der Regulierschraube (27) und dem Regulierelement (33) eine Drehentkopplungseinrichtung (71) vorgesehen ist.
- Expansionsventil nach Anspruch 1, dadurch gekennzeichnet, dass zusätzlich zur Regulierschraube (27) eine auf das Regulierelement (33) wirkende Vorspanneinrichtung (56) vorgesehen ist.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) an dem Übertragungsstift (46) angreift.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) an dem Druckkopf (50) der Betätigungseinrichtung (45) angreift.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) an dem Ventil (35) im Regulierraum (39) angreift.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) wenigstens ein Vorspannelement (57) aufweist, welches in oder entgegen der Wirkrichtung des Regulierelementes (33) wirkt.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung zumindest ein Vorspannelement (57) und ein Einstellglied (59) aufweist, welche über ein Sicherungselement (58) zum Übertragungsstift (46) positioniert gehalten und mittels dem Einstellglied (59) in zumindest zwei Voreinstellpositionen zum Einstellen der wenigstens zwei vordefinierte Vorspannkräfte einstellbar sind.
- Expansionsventil nach Anspruch 11, dadurch gekennzeichnet, dass das Einstellglied (59) verdrehbar, insbesondere quer zur Längsachse des Übertragungsstiftes (46), zur Einstellung von wenigstens zwei Vorspannkräften ausgebildet ist.
- Expansionsventil nach Anspruch 12, dadurch gekennzeichnet, dass das Einstellglied (59) als ein Rastpin oder Halteclip ausgebildet ist, der am Übertragungsstift (46) in einer ersten Vorspannposition angreift und für eine weitere Vorspannposition entfernbar ist.
- Expansionsventil nach Anspruch 11, dadurch gekennzeichnet, dass das Vorspannelement (47) vorzugsweise als Spiralfeder ausgebildet ist und den Übertragungsstift (46) umgibt sowie mit einem Ende an einen Abschnitt oder im Gehäuse (12), insbesondere im Kühlmittelkanal (21), und mit dem anderen Ende an dem Einstellglied (59) oder Sicherungselement (58) anliegt.
- Expansionsventil nach Anspruch 6, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) eine elektromagnetische Vorrichtung umfasst, auf den Übertragungsstift (46) wirkt und wenigstens eine weitere Vorspannposition einstellbar ist.
- Expansionsventil nach Anspruch 11, dadurch gekennzeichnet, dass die Vorspanneinrichtung (56) eine Druckplatte (65) aufweist, welche zwischen der Regulierschraube (27) und dem Regulierelement (33) angeordnet sowie mit einem in der Regulierschraube (27) vorgesehenen, von außen bedienbaren Einstellelement (66) verstellbar ist.
Priority Applications (1)
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DE112012003893.2T DE112012003893A5 (de) | 2011-09-19 | 2012-09-07 | Expansionsventil |
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DE202011051346.7 | 2011-09-19 | ||
DE202011051346U DE202011051346U1 (de) | 2011-09-19 | 2011-09-19 | Expansionsventil |
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WO2013041390A1 true WO2013041390A1 (de) | 2013-03-28 |
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PCT/EP2012/067484 WO2013041390A1 (de) | 2011-09-19 | 2012-09-07 | Expansionsventil |
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WO (1) | WO2013041390A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017198387A (ja) * | 2016-04-27 | 2017-11-02 | 株式会社不二工機 | 膨張弁 |
DE102018102378A1 (de) | 2018-02-02 | 2019-08-08 | Otto Egelhof Gmbh & Co. Kg | Expansionsventil für Kälteanlagen, insbesondere Fahrzeugklimaanlagen, und Verfahren zur Steuerung eines Expansionsventils |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014107279A1 (de) * | 2014-05-23 | 2015-11-26 | Otto Egelhof Gmbh & Co. Kg | Expansionsventil |
DE102016204841A1 (de) * | 2016-03-23 | 2017-09-28 | Bayerische Motoren Werke Aktiengesellschaft | Expansionsventil, insbesondere für einen Kältemittelkreislauf einer Klimaanlage eines Fahrzeugs, sowie Verfahren zum Einstellen eines solchen Expansionsventils |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB694055A (en) * | 1950-10-03 | 1953-07-15 | Automatic Products Co | Thermostatically-controlled refrigerant expansion valve |
GB715328A (en) * | 1951-07-12 | 1954-09-15 | British Thermostat Co Ltd | Improvements in or relating to expansion valves |
EP0356642A1 (de) * | 1988-08-27 | 1990-03-07 | Behr GmbH & Co. | Thermostatisches Expansionsventil |
DE4430497A1 (de) * | 1994-08-27 | 1996-02-29 | Flitsch E Gmbh & Co | Verfahren zur Einstellung der statischen Überhitzung an Expansionsventilen für Kältemittelkreisläufe |
EP2177847A1 (de) * | 2008-10-16 | 2010-04-21 | Valeo Systemes Thermiques | Thermostatausdehnungsventilvorrichtung für Kühlmittelkreislauf |
DE102009060017A1 (de) | 2008-12-19 | 2010-12-23 | Otto Egelhof Gmbh & Co. Kg | Regulierschraube für ein Expansionsventil sowie Expansionsventil |
-
2011
- 2011-09-19 DE DE202011051346U patent/DE202011051346U1/de not_active Expired - Lifetime
-
2012
- 2012-09-07 DE DE112012003893.2T patent/DE112012003893A5/de not_active Withdrawn
- 2012-09-07 WO PCT/EP2012/067484 patent/WO2013041390A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB694055A (en) * | 1950-10-03 | 1953-07-15 | Automatic Products Co | Thermostatically-controlled refrigerant expansion valve |
GB715328A (en) * | 1951-07-12 | 1954-09-15 | British Thermostat Co Ltd | Improvements in or relating to expansion valves |
EP0356642A1 (de) * | 1988-08-27 | 1990-03-07 | Behr GmbH & Co. | Thermostatisches Expansionsventil |
DE4430497A1 (de) * | 1994-08-27 | 1996-02-29 | Flitsch E Gmbh & Co | Verfahren zur Einstellung der statischen Überhitzung an Expansionsventilen für Kältemittelkreisläufe |
EP2177847A1 (de) * | 2008-10-16 | 2010-04-21 | Valeo Systemes Thermiques | Thermostatausdehnungsventilvorrichtung für Kühlmittelkreislauf |
DE102009060017A1 (de) | 2008-12-19 | 2010-12-23 | Otto Egelhof Gmbh & Co. Kg | Regulierschraube für ein Expansionsventil sowie Expansionsventil |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017198387A (ja) * | 2016-04-27 | 2017-11-02 | 株式会社不二工機 | 膨張弁 |
DE102018102378A1 (de) | 2018-02-02 | 2019-08-08 | Otto Egelhof Gmbh & Co. Kg | Expansionsventil für Kälteanlagen, insbesondere Fahrzeugklimaanlagen, und Verfahren zur Steuerung eines Expansionsventils |
Also Published As
Publication number | Publication date |
---|---|
DE112012003893A5 (de) | 2014-06-12 |
DE202011051346U1 (de) | 2011-12-01 |
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