WO2020207657A1 - Ensemble formant soupape de remplissage pour un conduit de climatisation - Google Patents

Ensemble formant soupape de remplissage pour un conduit de climatisation Download PDF

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Publication number
WO2020207657A1
WO2020207657A1 PCT/EP2020/055080 EP2020055080W WO2020207657A1 WO 2020207657 A1 WO2020207657 A1 WO 2020207657A1 EP 2020055080 W EP2020055080 W EP 2020055080W WO 2020207657 A1 WO2020207657 A1 WO 2020207657A1
Authority
WO
WIPO (PCT)
Prior art keywords
filling valve
valve arrangement
connector
flow opening
opening
Prior art date
Application number
PCT/EP2020/055080
Other languages
German (de)
English (en)
Inventor
Jonathan Messerschmidt
Original Assignee
CONTITECH KüHNER GMBH & CIE KG
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 CONTITECH KüHNER GMBH & CIE KG filed Critical CONTITECH KüHNER GMBH & CIE KG
Publication of WO2020207657A1 publication Critical patent/WO2020207657A1/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
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/001—Charging refrigerant to a cycle
    • 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
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/006—Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves

Definitions

  • the present invention relates to a filling valve arrangement for an air conditioning line according to the preamble of patent claim 1, a filling valve arrangement for an air conditioning line according to the preamble of claim 13, a
  • valves for different purposes is known in various technical applications. For example, so-called filling valves are used in order to be able to control a predetermined level of a fluid.
  • Filling valves can be used, for example, in air conditioning systems in automobiles, in that the filling valve forms a branch of an air conditioning line.
  • a fluid from the air conditioning system can be fed through the air conditioning line.
  • the fluid can also be referred to as the refrigerant and the air conditioning line can accordingly also be referred to as the refrigerant line.
  • the branch in which the filling valve is inserted is formed by the air conditioning line.
  • the branch can also be referred to as a socket or base.
  • the fill valve is then covered by an end cap
  • connection piece including the filling valve can be fluid-tight from above or from the outside of the aforementioned end cap
  • One object of the present invention is to provide a filling valve arrangement of the type described at the outset, so that the assembly of the filling valve in the connecting piece can be simplified and the filling valve can be individually replaced at the same time.
  • This should be made possible in particular for nozzles or for air conditioning lines made of plastic. This should in particular be made possible in a simpler, more cost-effective and or more durable manner than previously known.
  • At least one alternative to known such filling valve arrangements should be provided.
  • the object is achieved according to the invention by a filling valve assembly with the features according to claim 1, by a filling valve assembly with the features according to claim 13, by a filling valve assembly with the features according to claim 16 and by a nozzle with the
  • the invention relates to a filling valve arrangement for an air conditioning line with a connector with a flow opening for guiding a fluid through the connector and with a filling valve which is located within the
  • Flow opening is arranged in an assembly direction.
  • Filling valve arrangement can also be referred to as a filling valve system.
  • the air conditioning line can, for example, be used in a vehicle to guide a
  • Refrigerant can be used as a fluid.
  • the refrigerant can be a gas or a liquid.
  • a filling valve previously known and used filling valves can be used, so that known elements can be used here. This can keep the costs of implementing the invention low, since no change has to be made on the part of the filling valve used.
  • the flow opening can basically like previously known can be used, adaptations according to the invention may be advantageous, as will be described in more detail below.
  • the assembly direction of the filling valve is understood to mean the direction along a longitudinal axis of the connecting piece in which the filling valve is introduced into the throughflow opening, as previously known.
  • the filling valve arrangement according to the invention is characterized in that the filling valve is blocked by means of at least one separate holding element in the flow opening opposite to its mounting direction.
  • a blockage is understood to mean that the filling valve is inserted into its throughflow opening in its assembly direction along the longitudinal axis of the connector and, in this state, is prevented from being moved out of the throughflow opening in the opposite direction along the longitudinal axis against its assembly direction.
  • This blockage can be positively locked e.g. take place by a holding element arranged on the back of the filling valve, which is inserted into the flow opening after the filling valve has been arranged there as described above.
  • the holding element can also be arranged in the flow opening and
  • Holding element was passed by the filling valve in the assembly direction.
  • This can e.g. by means of a resilient projection as a holding element, which can be moved in the assembly direction from the filling valve, e.g. as an incline, and against the assembly direction blocking the filling valve, e.g. is formed as an edge. This enables the filling valve to be blocked automatically without the need for further assembly steps.
  • the filling valve can be blocked in the flow opening. This can take place without play, so that one can speak of a fixation of the filling valve by means of the holding element opposite to its mounting direction in the flow opening, as will be described in more detail below.
  • the Blocking can, however, also be made possible with play along the longitudinal axis, so that the positioning of the holding element with respect to the filling valve does not have to be precise and a blockage can nevertheless be achieved. This can keep the effort of implementing the blockade lower and still achieve the desired purpose as described above.
  • the filling valve is fixed by means of the holding element against its mounting direction in the throughflow opening.
  • this can be done in a non-positive manner by a holding element which, for example, at least substantially along the
  • Longitudinal axis has a certain resilience to substantially
  • the holding element can also exert a pure frictional connection on the filling valve in that the
  • Holding element is arranged, for example, perpendicular to the longitudinal axis and thus can act laterally clamping on the filling valve.
  • an immovable hold of the filling valve in the throughflow opening can be achieved in this way, as has been known so far through the use of screw connections, so that the known screw connection is also dispensed with and that
  • the holding element is arranged at least substantially perpendicular to the assembly direction of the filling valve. This can include placing the retaining element after the fill valve
  • the connecting piece has at least one through-opening through which the holding element is arranged so as to protrude at least substantially perpendicularly into the through-flow opening. This can enable the mounting or the arrangement of the holding element from the side, which can be advantageous for the reasons described above.
  • the connecting piece has at least one pair of through openings, through which the holding element is arranged so as to protrude at least substantially perpendicularly into the flow opening. This can improve the hold of the holding element in relation to the filling valve to be blocked or fixed.
  • the pair is from
  • the holding element can also be held on both sides by the connecting piece, which can improve the stability of the holding element compared to a receptacle on only one side.
  • the holding element has at least one sealing element which is arranged in a through opening and seals it in a fluid-tight manner.
  • at least one sealing element for example in the form of an O-ring, is arranged there on a holding element so that the sealing element is positioned in a through opening when the holding element is used as intended.
  • the sealing element can be arranged in particular at one end of the holding element.
  • a Sealing element provided for each passage opening.
  • each sealing element can in particular at the respective end of the holding element
  • the filling valve arrangement has an end cap which is arranged on the socket and which
  • the through-flow opening and the through-opening are sealed in a fluid-tight manner.
  • the through opening for the holding element can be implemented, as described above, without a sealing element of the holding element, since the leakage created in this way for the fluid does not appear to the outside.
  • the through-opening can be arranged in such a way that the through-opening extends from the end cap to the
  • the holding element is designed as a pin.
  • a pin is understood to mean a simple machine element which is shaped like a nail without a head and which connects
  • a simple, inexpensive and / or effective holding element can be created in order to be able to implement the blockage or fixation of the filling valve as described above.
  • This also enables the holding element to be easily adapted to the shape and / or the size of the filling valve, depending on the application. This can keep the costs of implementing the invention low and make it flexible.
  • a pair of pins is used as a
  • Retaining element used. This allows a more extensive and / or more uniform distribution of the contact between the two pins. If a pin fails, the blockage or fixation can also be maintained by the remaining pin, which can benefit the longevity of the blockage or fixation.
  • the holding element is designed as a bracket.
  • a bracket is to be understood as a pair of pins which are connected to one another at one end by means of an arc and, in particular, are formed in one piece. This can make it possible to use two pins in order to take advantage of the aforementioned advantages, and at the same time simplify their joint handling, so that assembly can be simplified and accelerated.
  • the filling valve has a pin at its end facing away from the assembly direction and the holding element, preferably the pins or the bracket, is arranged to the side of the pin, preferably on both sides of the pin.
  • the transition to the pin can be engaged from behind by the holding element in order to achieve the blockage or the fixation as described above.
  • the already existing contour of known filling valves can benefit the implementation of the invention, which can keep the effort involved in implementing the invention low.
  • the filling valve has an external thread, the flow opening being wider in sections in the assembly direction than the dimension of the external thread of the filling valve
  • Assembly direction are guided past the inside of the flow opening so that assembly is not hindered.
  • Assembly direction are guided past the inside of the flow opening so that assembly is not hindered.
  • the through-flow opening can then bear against the external thread of the filling valve along the longitudinal axis in the assembly direction and thus form a stop in this direction.
  • the connecting piece is made of plastic.
  • plastics such as e.g. a comparatively low weight can be used for nozzles for air conditioning lines.
  • the entire air conditioning line including the connector can be made in one piece from plastic, e.g. be manufactured by means of an injection molding process, which can also save an assembly step of connecting the connector to a main line of the air conditioning line.
  • the disadvantages of plastic described at the beginning can be avoided, since according to the invention there is no need for an internal thread in the connection piece for screwing the known filling valve.
  • the present invention also relates to a nozzle for use in a fill valve assembly as described above.
  • a connecting piece can be provided in order to be able to realize the properties and advantages of a filling valve arrangement according to the invention described above.
  • the nozzle can be arranged at any point in an air conditioning line, depending on the application.
  • FIG. 1 shows a perspective schematic representation of an air conditioning line
  • FIG. 2 shows a perspective schematic representation of a connector according to the invention according to a first exemplary embodiment (left) and a known filling valve (right);
  • FIG. 5 shows the illustration of FIG. 4 rotated by 90 ° in the circumferential direction
  • FIG. 6 shows a longitudinal section through a holding element with sealing elements
  • An air conditioning line 1 according to FIG. 1 has a main line 10, from which a connector 11 points away at right angles.
  • the nozzle 11 can also be referred to as a filler nozzle 11, a junction 11 or a base 11 of the air conditioning line 1.
  • the connecting piece 11 can also be arranged at a different point on the main line 10 and at a different angle to the main line 10 than is the case here.
  • the connector 11 is enclosed in sections by an end cap 3 and sealed in a fluid-tight manner.
  • the end cap 3 was screwed onto the connecting piece 11 along the longitudinal axis X of the connecting piece 11 in an assembly direction A.
  • the connecting piece 11 has for this purpose in its upper area
  • the connector 11 has an externally arranged sealing element 15 in the form of an O-ring, which provides the fluid-tight seal with respect to the screwed-on
  • End cap 3 is used, see also e.g. Figure 2, left.
  • the connector 11 has a flow opening 12 which extends completely through the connector 11 along the longitudinal axis X, cf. e.g. also FIGS. 3 to 5.
  • the throughflow opening 12 is initially smooth-walled and radially furthest from top to bottom along the longitudinal axis X.
  • the flow opening 12 then narrows and furthermore forms an internal thread 14 into which a known filling valve 2, see e.g. 2, right, with a corresponding external thread 21
  • the internal thread 14 of the known connecting piece 11 closes along the longitudinal axis X downwards with a threadless one
  • Constriction which merges conically into a section of the throughflow opening 12 which has the smallest diameter.
  • a sealing element 20 of the filling valve 2 which is also designed as an O-ring, comes into contact in a fluid-tight manner against the inside of the flow opening 12 when the filling valve 2 is screwed completely into the known connector 11 in the assembly direction A along the longitudinal axis X. .
  • Screwing in takes place by means of a pin 22 which runs along the
  • Longitudinal axis X is arranged upwards on the filling valve 2 and from above or can be grasped from the outside in order to rotate the filling valve about the longitudinal axis X and thereby screw it into or out of the flow opening 12 of the known connector 11.
  • the known filling valve 2 is inserted into the throughflow opening 12 of the nozzle 11 according to the invention according to the first embodiment, see e.g. 4 and 5, inserted along the longitudinal axis X in the assembly direction A and secured there from behind by a pair of holding elements 4, which can also be referred to as pegging elements 4.
  • the throughflow opening 12 of the nozzle 11 according to the invention is smooth and internally threadless in the upper area along the longitudinal axis X.
  • the throughflow opening 12 of the nozzle 11 according to the invention has a radially sufficiently larger internal diameter in this area than the largest external diameter of the known filling valve 2, which is formed by its external thread 21.
  • This area of the throughflow opening 12 of the nozzle 11 according to the invention ends in the longitudinal direction X with a step of a radial constriction, which is followed by the known conical transition in the longitudinal direction X in the assembly direction A downwards and then the section of the throughflow opening 12, which the has the smallest diameter, see e.g. 4 and 5.
  • the known filling valve 2 can be inserted along the longitudinal axis X in the assembly direction A into the flow opening 12 from above and come to rest against the radially narrowing step.
  • connection piece 11 has several through openings 16 which are arranged both next to one another in pairs and parallel to one another in the radial direction R and opposite one another in pairs past the longitudinal axis X.
  • a holding element 4 in the form of two pins 4 can be guided and held through these four through openings 16, which are connected at one end in an arc to form a one-piece bracket 4, see, for example, FIGS. 4 and 5
  • connection piece 1 1 The positioning of the four through openings 16 in the connection piece 1 1 according to the invention is selected such that the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are known in particular along the longitudinal axis X, are inserted into the known filling valve 2, the dimensions of which are
  • Through-flow opening 12 introduced state along the longitudinal axis X from the top against the assembly direction A can be essentially positively engaged and additionally to a small extent non-positively engaged behind. In this way, a movement of the filling valve 2 along the longitudinal axis X opposite to the assembly direction A can be avoided.
  • the filling valve 2 can be pressed along the longitudinal axis X against the radially narrowing step and thereby fixed along the longitudinal axis X, so that a secure and defined hold of the filling valve 2 can be ensured even without screwing it.
  • the four through openings 16 can be arranged on the connection piece 11 according to the invention where a corresponding geometry of the filling valve 2 along the longitudinal axis X opposite to the assembly direction A is to be gripped from behind.
  • Through openings 16 are adapted to the filling valve 2 to be fixed in order to be able to hold the filling valve 2 to be used as securely as possible. Since the four through openings 16 are arranged within the volume which is enclosed by the end cap 3, the
  • the passage openings 16 of FIGS. 4 and 5 can be designed to be fluid-permeable, without fluid being able to reach the outside and be lost at this point.
  • the folding element 4 can have, as a pin 4, an elongated pin-like folding body 40, which along its
  • the longitudinal axis has a tip 41 at one end and a widening 42 at the opposite end, see FIG. 6, which shows a longitudinal section through a holding element 4 with sealing elements 43.
  • the tip 41 is tapered
  • the widening 42 is designed to be radially larger than the holding body 40 of the pin 4 and radially larger than the corresponding through opening 16 of the connecting piece 11 in order to limit the movement along its longitudinal axis.
  • the positioning of the O-rings 43 along the longitudinal axis of the pin-like holding body 40 is selected in such a way that the two O-rings 43 seal the corresponding through openings 16 of the connector 11 in a fluid-tight manner when the pin 4 is arranged in the connector 11 as intended. In this way, in addition or as an alternative to the use of the end cap 3, a fluid-tight seal can be achieved at this point.
  • FIG. 7 shows a schematic longitudinal section through a filling valve arrangement 1 1, 2, 3, 4 according to the invention with a connecting piece 1 1 according to the invention according to a second embodiment and with a known filling valve 2 from one side.
  • the connector 11 according to the second exemplary embodiment also has a through-flow opening 12 for guiding a fluid through the connector 11. Furthermore, in this case too, a known filling valve 2 is inside of the throughflow opening 12 arranged in an assembly direction A.
  • the end cap 3 is not shown here.
  • the nozzle 1 1 according to the second embodiment is in an upper, the nozzle 1 1 1 according to the second embodiment is in an upper, the
  • Air conditioning line 1 facing away from the connector part 1 1 a and divided into a lower, the air conditioning line 1 facing connector part 1 1 b.
  • the filling valve 2 is received by the lower connection part 1 1 b and is fixed by the upper connection part 1 1 a in the flow opening 12 against its assembly direction A.
  • the upper connector part 1 1 a has a radially inwardly protruding projection 17 at least partially into its throughflow opening 12, which is designed to engage behind the filling valve 2 against its assembly direction A, so that the fixation of the known filling valve 2 in the throughflow opening 12 of the
  • Stub 1 1 can be achieved alternatively according to the second embodiment.
  • the connector 11 has at least one detachable latching mechanism 18 which is designed to hold the upper connector part 1 1 a on the lower connector part 1 1 b. This can be done by means of interacting locking hooks and projections, recesses or
  • Recesses can be achieved (not shown), so that an at least positive hold can be achieved. By bending open the latching hook, the hold can be canceled again in order to separate the two connector parts 1 1 a, 1 1 b from each other again and to be able to remove the filling valve 2.
  • FIG. 8 shows a schematic longitudinal section through a filling valve arrangement 1 1, 2, 3, 4 according to the invention with connecting piece 1 1 according to the invention according to a third exemplary embodiment and known filling valve 2 from one side.
  • the connector 11 according to the third exemplary embodiment also has a throughflow opening 12 for guiding a fluid through the connector 11. Furthermore, in this case, too, a known filling valve 2 is in a flow opening 12 Mounting direction A arranged.
  • the end cap 3 is not shown here.
  • the nozzle 11 has a recess 19 within its flow opening 12, at least in sections, which is designed to receive a retaining element 4 in the form of a ring 4 in such a way that the filling valve 2 is fixed by the ring 4 in the flow opening 12 against its assembly direction A becomes.
  • the known filling valve 2 can be fixed in the throughflow opening 12, as described above.
  • the ring 4 is designed to be radially flexible or compressible, so that the ring 4 can be compressed radially in order to be introduced into the flow opening 12.
  • the ring 4 can then be guided along the longitudinal axis X until the ring 4 reaches the recess 19 and engages there due to its radial prestress, whereby the filling valve 2 is fixed in the flow opening 12 against its assembly direction A at the same time. This fixation can be canceled by pressing the ring 4 together again and removing it.
  • the entire air conditioning line 1 made of plastic e.g. be produced as a one-piece injection-molded part, which saves weight and reduces the costs of production and assembly compared to known air conditioning lines 1 from e.g. Can reduce aluminum.
  • damage to an internal thread 4 of the connection 11 made of plastic by over-turning the filling valve 2 can be avoided in this way, since such a thread
  • Internal thread 4 can be dispensed with.
  • the assembly of the filling valve 2 can also be simplified and / or accelerated as a result. At the same time, a secure assembly and in particular a defined fixing of the filling valve 2 at a defined position in the connecting piece can be achieved 1 1 can be guaranteed. Furthermore, an influence of the screw-in depth on the height of the arrangement of the filling valve 2 can be avoided, as has been the case up to now. Rather, the height of the filling valve 2 in the assembled state can be specified and maintained very precisely and in a defined manner as described above, which can in particular benefit the triggering of the filling valve 2 due to the defined height of the pin of the filling valve 2.
  • the filling valve 2 can e.g. removed for servicing and then reassembled as described above without any loss of stability or durability.
  • connection 1 1 and for the air conditioning line 1 per se can also be applied to connection 1 1 and air conditioning lines 1 from others
  • Materials such as aluminum can be used.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Basic Packing Technique (AREA)

Abstract

L'invention concerne un ensemble formant soupape de remplissage (11, 2, 3, 4) pour un conduit de climatisation (1) comprenant une tubulure (11) pourvue d'une ouverture de passage (12) servant à guider un fluide à travers la tubulure (11), et une soupape de fluide (2), laquelle est disposée dans un sens de montage (A) à l'intérieur de l'ouverture de passage (12). L'ensemble formant soupape de remplissage (11, 2, 3, 4) est caractérisé en ce que la soupape de remplissage (2) est bloquée dans l'ouverture de passage (12) dans le sens opposé au sens de montage (A) au moyen d'au moins un élément de maintien (4).
PCT/EP2020/055080 2019-04-11 2020-02-27 Ensemble formant soupape de remplissage pour un conduit de climatisation WO2020207657A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019205177.4 2019-04-11
DE102019205177.4A DE102019205177A1 (de) 2019-04-11 2019-04-11 Füllventilanordnung für eine Klimaleitung

Publications (1)

Publication Number Publication Date
WO2020207657A1 true WO2020207657A1 (fr) 2020-10-15

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PCT/EP2020/055080 WO2020207657A1 (fr) 2019-04-11 2020-02-27 Ensemble formant soupape de remplissage pour un conduit de climatisation

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DE (1) DE102019205177A1 (fr)
WO (1) WO2020207657A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805417A (en) * 1987-11-05 1989-02-21 Production Control Units, Inc. Dispensing tool assembly for charging a refrigerant into a system
US6745591B1 (en) * 2003-06-03 2004-06-08 Shan-Chi Lin Cooling-lubricant replenishing accessory for a compressor
DE102006017431B3 (de) * 2006-04-06 2007-05-24 Visteon Global Technologies, Inc., Van Buren Township Ventil zum Befüllen von Kältemittelleitungen in Klimaanlagen
US20150184911A1 (en) * 2014-01-02 2015-07-02 Idq Operating, Inc. Apparatus and methodology for opening refrigerant sources while servicing automotive refrigeration systems
DE102014011611A1 (de) * 2014-08-01 2016-02-04 Dürr Somac GmbH Vorrichtung zur Befüllung von Klimasystemen (MAC) mit einem Kältemittel in der Fahrzeugendmontage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4805417A (en) * 1987-11-05 1989-02-21 Production Control Units, Inc. Dispensing tool assembly for charging a refrigerant into a system
US6745591B1 (en) * 2003-06-03 2004-06-08 Shan-Chi Lin Cooling-lubricant replenishing accessory for a compressor
DE102006017431B3 (de) * 2006-04-06 2007-05-24 Visteon Global Technologies, Inc., Van Buren Township Ventil zum Befüllen von Kältemittelleitungen in Klimaanlagen
US20150184911A1 (en) * 2014-01-02 2015-07-02 Idq Operating, Inc. Apparatus and methodology for opening refrigerant sources while servicing automotive refrigeration systems
DE102014011611A1 (de) * 2014-08-01 2016-02-04 Dürr Somac GmbH Vorrichtung zur Befüllung von Klimasystemen (MAC) mit einem Kältemittel in der Fahrzeugendmontage

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