EP2109742B1 - Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar - Google Patents
Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar Download PDFInfo
- Publication number
- EP2109742B1 EP2109742B1 EP08720199.2A EP08720199A EP2109742B1 EP 2109742 B1 EP2109742 B1 EP 2109742B1 EP 08720199 A EP08720199 A EP 08720199A EP 2109742 B1 EP2109742 B1 EP 2109742B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- automatic filling
- automatic
- filling unit
- bypass conduit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Not-in-force
Links
- 238000010438 heat treatment Methods 0.000 title claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000005557 antagonist Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1083—Filling valves or arrangements for filling
Definitions
- the present invention relates to an automatic filling unit for hydraulic systems with a closed circuits, like heating systems and similar, according to the preamble to claim 1, wherein document EP-A-1 239 231 reveals all the features of the preamble of claim 1.
- closed circuit hydraulic systems such as heating systems, air conditioning systems, heating/cooling systems, and the like
- heating systems after their installation require to be filled with the necessary quantity of operating circulation water
- filing is also necessary after any total or partial emptying of said systems, e.g. because the radiators are vented or the systems are modified.
- the collective definition of "heating system(s)" means the various executions of closed circuit hydraulic systems, in order to avoid repetitions.
- the automatic filling of heating systems occurs by means of known automatic filling valve units in various embodiments and constructed conceptually as shown schematically in figure 1 , in which the automatic filling valve 1 of the valve unit T is inserted in a pipeline 2 connected at one side, through an upstream on-off valve 3, to a water inlet pipeline 4 and, at the other side, through a downstream on-off valve 5, to an inlet pipeline 6 of the heating system, not shown.
- the valve 1 is provided with a calibration valve, which can generally be set, not shown herein, able to be controlled through a hand wheel 7 to select the predetermined filling pressure, which can be read on the pressure gauge 8.
- Said calibration spring operatively associated to a on-off valve, not shown, forms an automatic system for opening/closing the direct path of the flow.
- the valve unit 1 also comprises a manual valve 9 as well as a filter, not shown, for retaining the impurities present in the passing flow of water.
- the prior art also provides an external bypass conduit 11 comprising its own on-off valve 12, for a manual charging of the system in much shorter times.
- a cock 13 is generally provided, which serves the purpose of reducing operating pressure or emptying the system.
- the document US 5 960 818 A discloses a filling fitting for filling a closed hot-water heating system and comprising a tube separator including an upstream backflow preventer, a downstream backflow preventer, a drain valve as well as a pressure reducer, wherein the disclosed construction allows the downstream pressure reducer to be used in two different manner.
- a filter 128, wherein said filter is housed in a stable manner is integrated in the proposed filling fitting inside the pressure reducer 24 .
- the automatic filling unit according to the invention several important advantageous are achieved.
- the external bypass conduit with the related on-off valve present therein is eliminated.
- the external bypass conduit necessary for a rapid filling of the heating system, is advantageously provided inside the valve body of the filling unit, so that the known external bypass conduit is eliminated altogether, the size of the filling unit is reduced and the installation of the proposed filling unit is facilitated and made faster.
- the filling unit according to the invention also facilitates the stocking of the necessary installation components, because the union components and tubular sectors necessary for the construction of the known external bypass conduit are eliminated altogether.
- bypass conduit within the body of the automatic filling valve, said body is enlarged by a negligible amount and said bypass conduit is obtained from the automatic shaving removal machining, slightly increased with respect to the machining already required to obtain the valve body, and with a wholly negligible lengthening of the machining time, so that, on one hand, production costs are obtained that are substantially similar to those expected for the production of the bodies of known automatic filling valves and, on the other hand, with the elimination of the external bypass conduit, a considerable saving in material is obtained along with reduced installation times.
- the automatic filling unit T comprises an automatic filling valve with a valve body 20, which houses a known opening/closing system 21a, which comprises a calibration spring 21, that is antagonist to the pressure P downstream of the valve 1 and that acts on the membrane 22.
- the valve body 20 comprises an inlet fitting 23 and an outlet fitting 24 able to be connected, the first with the water inlet pipeline, not shown, through an on-off valve 25, and the second is connected, through an on-off valve 26, to the pipeline, not shown, for entering the heating system, not shown.
- the arrow F indicates the direction of the flow of the water into the heating system.
- a filter 27 for retaining impurities, as well as a check valve 28, to prevent reverse flow phenomena in the case of a sudden pressure drop upstream of the valve 1.
- an internal bypass path 11 derived from the inlet fitting 23 and ending in the outlet fitting 24, whereas on the inlet side of said bypass 11 is provided an on/off valve 12, whose shutter 29 is able to close the shut-off port 30 of said bypass conduit 11 on the inlet side.
- the hand-wheel for controlling the shutter 29 is designated with the reference number 31.
- Figures 3-5 also show that the shutter 32 of the on-off valve co-operating with the calibration spring 21 and forming therewith the known opening/closing system 21a is able to close the seat 33 of said opening/closing system.
- a gauge 8 for reading the downstream pressure P.
- valve body 20 has a union 34 with internal thread for housing the coupling thread 35 of a cartridge 36 housing, preferably coaxially, said filter 27 and said check valve 28 mentioned above.
- Housing the filter 27 and the check valve 28 in the cartridge 3 6 allows to rapidly remove said cartridge 36 and clean the filter, or to replace the check valve 28 even with the automatic filling valve 1 installed, after simply closing the two on-off valves 25 and 26, even with the heating system in operation.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Details Of Valves (AREA)
Description
- The present invention relates to an automatic filling unit for hydraulic systems with a closed circuits, like heating systems and similar, according to the preamble to claim 1, wherein document
EP-A-1 239 231 reveals all the features of the preamble ofclaim 1. - As is well known, closed circuit hydraulic systems, such as heating systems, air conditioning systems, heating/cooling systems, and the like, after their installation require to be filled with the necessary quantity of operating circulation water, whereas such filing is also necessary after any total or partial emptying of said systems, e.g. because the radiators are vented or the systems are modified. In the present application, the collective definition of "heating system(s)" means the various executions of closed circuit hydraulic systems, in order to avoid repetitions.
- The automatic filling of heating systems occurs by means of known automatic filling valve units in various embodiments and constructed conceptually as shown schematically in
figure 1 , in which theautomatic filling valve 1 of the valve unit T is inserted in apipeline 2 connected at one side, through an upstream on-offvalve 3, to awater inlet pipeline 4 and, at the other side, through a downstream on-offvalve 5, to an inlet pipeline 6 of the heating system, not shown. Thevalve 1 is provided with a calibration valve, which can generally be set, not shown herein, able to be controlled through a hand wheel 7 to select the predetermined filling pressure, which can be read on thepressure gauge 8. Said calibration spring, operatively associated to a on-off valve, not shown, forms an automatic system for opening/closing the direct path of the flow. Thevalve unit 1 also comprises amanual valve 9 as well as a filter, not shown, for retaining the impurities present in the passing flow of water. There is also a check valve, not shown, which prevents a reversal of the flow in case of a sudden pressure drop upstream. - The prior art also provides an
external bypass conduit 11 comprising its own on-offvalve 12, for a manual charging of the system in much shorter times. Moreover, acock 13 is generally provided, which serves the purpose of reducing operating pressure or emptying the system. - From the outline description of the known automatic filling valve units, shown schematically in
figure 1 , it is apparent that they comprise theexternal bypass conduit 11 with its on-off valve, which therefore increase the size of the valve unit and thus require more construction/installation space. - The document
US 5 960 818 A (document D2) discloses a filling fitting for filling a closed hot-water heating system and comprising a tube separator including an upstream backflow preventer, a downstream backflow preventer, a drain valve as well as a pressure reducer, wherein the disclosed construction allows the downstream pressure reducer to be used in two different manner. In the proposed filling fitting inside thepressure reducer 24 is integrated a filter 128, wherein said filter is housed in a stable manner. - At the basis of the present invention is the task of providing an automatic filling valve unit that is free of the disadvantages of prior art automatic filling valve units.
- This task is accomplished, according to the invention, by means of an automatic filling unit for heating systems, which has the features of
claim 1. - Additional advantageous developments of the invention are the subject of the dependent claims.
- With the automatic filling unit according to the invention, several important advantageous are achieved. In the first place, the external bypass conduit with the related on-off valve present therein is eliminated. Indeed, the external bypass conduit, necessary for a rapid filling of the heating system, is advantageously provided inside the valve body of the filling unit, so that the known external bypass conduit is eliminated altogether, the size of the filling unit is reduced and the installation of the proposed filling unit is facilitated and made faster. The filling unit according to the invention also facilitates the stocking of the necessary installation components, because the union components and tubular sectors necessary for the construction of the known external bypass conduit are eliminated altogether.
- With the incorporation of the bypass conduit within the body of the automatic filling valve, said body is enlarged by a negligible amount and said bypass conduit is obtained from the automatic shaving removal machining, slightly increased with respect to the machining already required to obtain the valve body, and with a wholly negligible lengthening of the machining time, so that, on one hand, production costs are obtained that are substantially similar to those expected for the production of the bodies of known automatic filling valves and, on the other hand, with the elimination of the external bypass conduit, a considerable saving in material is obtained along with reduced installation times.
- Additional advantages, details and characteristics of the automatic filling unit and valve according to the invention shall become more readily apparent from the following description of a preferred embodiment of an automatic filling unit and valve according to the invention described by way of example hereafter and illustrated in the drawings, in which:
-
figure 1 shows a front outline view of the automatic filling units of the prior art; -
figure 2 shows a perspective view of the unit with automatic filling valve according to the invention, with separate filter cartridge-check valve; andfigures 3 ,4 and5 show, each, a longitudinal section of the assembled unit with automatic filling valve offigure 2 , more specifically respectively during the manual loading operation (figure 3 ), during the automatic loading operation (figure 4 ), and while reaching the set pressure (figure 5 ). - With a prior art automatic filling unit and valve, shown in
figure 1 , the disadvantages mentioned in the introductory part are encountered. - Reference is now made to the unit T with automatic filling valve according to the invention, illustrated in
figures 2 through 5 , in which for parts shared with the known unit with automatic filling valve offigure 1 , the same reference numbers are maintained. - More in detail, the automatic filling unit T comprises an automatic filling valve with a
valve body 20, which houses a known opening/closing system 21a, which comprises acalibration spring 21, that is antagonist to the pressure P downstream of thevalve 1 and that acts on themembrane 22. Thevalve body 20 comprises an inlet fitting 23 and an outlet fitting 24 able to be connected, the first with the water inlet pipeline, not shown, through an on-offvalve 25, and the second is connected, through an on-offvalve 26, to the pipeline, not shown, for entering the heating system, not shown. The arrow F indicates the direction of the flow of the water into the heating system. In thevalve body 20, between theunions filter 27 for retaining impurities, as well as acheck valve 28, to prevent reverse flow phenomena in the case of a sudden pressure drop upstream of thevalve 1. - According to the invention, moreover, in the
body 20 of theautomatic filling valve 1 is provided aninternal bypass path 11 derived from the inlet fitting 23 and ending in the outlet fitting 24, whereas on the inlet side of saidbypass 11 is provided an on/offvalve 12, whoseshutter 29 is able to close the shut-offport 30 of saidbypass conduit 11 on the inlet side. The hand-wheel for controlling theshutter 29 is designated with thereference number 31. -
Figures 3-5 also show that theshutter 32 of the on-off valve co-operating with thecalibration spring 21 and forming therewith the known opening/closing system 21a is able to close theseat 33 of said opening/closing system. In thevalve body 20 is also housed, in known fashion, agauge 8 for reading the downstream pressure P. - Lastly, the
valve body 20 has aunion 34 with internal thread for housing thecoupling thread 35 of acartridge 36 housing, preferably coaxially, saidfilter 27 and saidcheck valve 28 mentioned above. - With the automatic filling unit T according to the invention, a rapid calibration of the filling pressure is advantageously possible and the presence of the known
manual valve 9 offigure 1 is practically made superfluous. Moreover, it is easy to verify whether the calibration of the operating pressure, set by the manufacturer, is maintained, by means of the seal 7a positioned on the adjusting hand-wheel 7. Alternatively, it is possible to use valves that can be calibrated manually by acting on the related hand-wheel 7. - Similarly to the automatic filling units of the prior art, with the unit with automatic filling valve according to the invention, three operative steps can be defined, and more specifically:
- step 1: The empty heating system must be filled. In this step, the
automatic shutter 32 is open, because the pressure P in the system to be filled is lower than the pressure set by means of thecalibration spring 21, whereas to fill the heating system more rapidly, thebypass 11 is opened by opening theshutter 29 of the on-offvalve 12. In this way, most of the water flow will pass through thebypass 11 as a result of the reduced head losses of saidbypass conduit 11 relative to the head losses of the automatic system, i.e. within thevalve 1. In this way, the heating system is filled quickly. - Step 2: the heating system is almost completely filled and the pressure in the heating system is close to the set pressure. At this point, acting on the on-off
valve 12, thebypass conduit 11 is closed to prevent the filling pressure from reaching the set pressure, which is reached solely by means of the automatic path that traverses thevalve 1. - Step 3: in this step, the downstream pressure, i.e. the pressure in the heating system, becomes equal to the set pressure. After the heating system is filled, the
automatic shutter 32 moves to the closed position on theseat 33 because the effect of the pressure P downstream of thevalve 1 will overcome the force of the calibration spring 21 (and it will open in the opposite case). - If it is necessary to reduce the operating pressure, or to empty the heating system, this will be obtained in known fashion by opening the
drain cock 13. If the system is emptied, for maintenance or modifications to the heating system in operation, or already filled with water, the new filling operation will take place as indicated above. - Housing the
filter 27 and thecheck valve 28 in thecartridge 3 6 allows to rapidly removesaid cartridge 36 and clean the filter, or to replace thecheck valve 28 even with theautomatic filling valve 1 installed, after simply closing the two on-offvalves - From the above structural and functional description of a filling unit with automatic filling valve according to the invention, it is readily apparent that with said unit and valve, the indicated task is effectively accomplished and the aforementioned advantages are obtained.
- Those skilled in the art may introduce modifications and variants with respect, for example, to the illustrated automatic opening/closing system, as well as to the arrangement of other components, without thereby departing from the scope of protection of the automatic filling unit and valve according to the invention, as it is claimed in the appended claims.
Claims (5)
- An automatic filling unit (T) for hydraulic systems with a closed circuit, comprising an automatic filling valve (1) with an automatic opening/closing system (21a) with a spring (21) that acts against the pressure downstream housed in the body (20) of the automatic filling valve (1), which automatic filling unit (T) has an inlet fitting (23) to be connected to the water distribution pipeline, as well as an outlet fitting (24) to be connected to the inlet of the heating system, and comprising also a check valve (28) interposed between the inlet fitting (23) and the outlet fitting (24) in a direct path of the flow between the inlet fitting (23) and the outlet fitting (24), as well as a bypass conduit (11) interposed between said inlet fitting (23) and said outlet fitting (24) and housing an on-off valve (12), whereby said bypass path is obtained within the automatic filling unit (T), i.e. of the automatic filling valve body, characterised in thati) the automatic filling unit also comprises a filter (27), wherein the filter (27) and the check valve (28) provided downstream of the automatic opening/closing system (21a) are housed axially above each other in a cartridge (36) that is removably fastened to the body (20) of the automatic filling valve (1), and in thatii) the on-off valve (12) has a hand wheel for controlling the shutter (29) able to close a shut-off port (30) of said bypass conduit (11).
- An automatic filling unit (T) as claimed in claim 1, characterised in that the cartridge (36), mounted in the body (20) of the automatic filling valve (1), has an axis coaxial to the axis of the automatic opening/closing system (2 1 a).
- An automatic filling unit (T) as claimed in claim 1, characterised in that in said bypass conduit (11) the on-off valve (25) thereof is positioned in the branch of said bypass conduit (11) upstream of the automatic opening/closing system (21a) of the automatic filling vale (1).
- A method of operating the automatic filling unit (T) as claimed in claims 1 and 3, characterised in that, with the on-off valve (25) of the bypass conduit (11) closed, the filling flow between the inlet fitting (23) and the outlet fitting (24) takes place through the direct path of the flow provided for the automatic opening/closing system (21a), whilst with the on-off valve (25) of the bypass conduit (11) open, said filling flow occurs partially through the path of said automatic opening/closing system (21 a) and, prevalently, through said bypass conduit (11).
- An automatic filling system for hydraulic systems with a closed circuit, e.g. a heating system, characterised in that it comprises an automatic filling unit (T) as claimed in one or more of the claims 1 through 4.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI20070088 ITMI20070088A1 (en) | 2007-01-22 | 2007-01-22 | AUTOMATIC FILLING GROUP FOR CLOSED CIRCUIT HYDRAULIC SYSTEMS AS SIMILAR HEATING SYSTEMS |
PCT/IT2008/000029 WO2008090581A2 (en) | 2007-01-22 | 2008-01-21 | Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2109742A2 EP2109742A2 (en) | 2009-10-21 |
EP2109742B1 true EP2109742B1 (en) | 2014-03-19 |
Family
ID=39644965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08720199.2A Not-in-force EP2109742B1 (en) | 2007-01-22 | 2008-01-21 | Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2109742B1 (en) |
IT (1) | ITMI20070088A1 (en) |
WO (1) | WO2008090581A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014003273U1 (en) | 2014-04-17 | 2015-07-22 | Stiebel Eltron Gmbh & Co. Kg | Medium circuit with an environmental heat source |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3007112B1 (en) * | 2013-06-14 | 2015-07-17 | Vergne Innovation | DEVICE FOR FILLING A HEATING CIRCUIT COMPRISING A DISCONNECTOR |
EP3693671B1 (en) * | 2019-02-08 | 2023-06-21 | Vaillant GmbH | Filling system with thermal actuating device |
GB2614703A (en) * | 2021-12-22 | 2023-07-19 | Intaco Ltd | Connector |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5960818A (en) | 1998-09-08 | 1999-10-05 | Hans Sasserath & Co. Kg | Filling fitting for filling a closed hot-water heating system |
NL1017198C1 (en) | 2001-01-26 | 2002-07-29 | Jan Henk Cnossen | Liquid heating. |
GB2377745A (en) * | 2001-02-07 | 2003-01-22 | Heatrae Sadia Heating Ltd | A replenishment system |
-
2007
- 2007-01-22 IT ITMI20070088 patent/ITMI20070088A1/en unknown
-
2008
- 2008-01-21 EP EP08720199.2A patent/EP2109742B1/en not_active Not-in-force
- 2008-01-21 WO PCT/IT2008/000029 patent/WO2008090581A2/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014003273U1 (en) | 2014-04-17 | 2015-07-22 | Stiebel Eltron Gmbh & Co. Kg | Medium circuit with an environmental heat source |
Also Published As
Publication number | Publication date |
---|---|
WO2008090581A3 (en) | 2008-11-27 |
ITMI20070088A1 (en) | 2008-07-23 |
EP2109742A2 (en) | 2009-10-21 |
WO2008090581A2 (en) | 2008-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2109742B1 (en) | Automatic filling unit for hydraulic systems with a closed circuit like heating systems and similar | |
CA2682062A1 (en) | Antifreezing valve device for hydraulic and/or water storage systems | |
RU2008113015A (en) | TANK MANIFOLD BLOCK | |
JP3790778B2 (en) | Automatic adjustment valve device | |
KR19980703767A (en) | Thermostatic Tap Mixing Valve | |
CA2538394A1 (en) | Regulated flow flowmeter with integral cleaning arrangement | |
US4286613A (en) | Apparatus for and method of freeze protecting plumbing | |
US20070102048A1 (en) | Block coaxial valve for use in compressed air systems | |
JP4462835B2 (en) | Automatic adjustment valve device | |
CN105492810B (en) | Liquid discharge valve | |
JP5056293B2 (en) | Main water heater system | |
JP4462858B2 (en) | Automatic adjustment valve device | |
CN202273877U (en) | Self-circulating check valve | |
CN109611567B (en) | Collect water regulating, pressure release, drainage, moisturizing function in water inlet joint | |
JP5306280B2 (en) | Flow control valve | |
DK1925872T3 (en) | Vandudlader | |
EP1101874B1 (en) | Tap for the delivery of water | |
KR101304863B1 (en) | Heater Core | |
CN107532748A (en) | Soft choke valve | |
CN114270085A (en) | Quick dome loaded pilot valve bypass | |
JP3782764B2 (en) | Hot water supply adapter with hot water mixing valve | |
US9115850B2 (en) | Priority valve assembly and method for operating a priority valve assembly | |
CN213839678U (en) | Integrated parallel waterway valve member and heat pump hot water system | |
CN215110703U (en) | One-way stop valve structure and tap | |
GB2605520A (en) | A thermostat assembly continuously adjusting flow amount of the coolant flowing toward the heater port |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090817 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20120918 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20131014 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 657925 Country of ref document: AT Kind code of ref document: T Effective date: 20140415 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602008030954 Country of ref document: DE Effective date: 20140430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140619 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20140319 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 657925 Country of ref document: AT Kind code of ref document: T Effective date: 20140319 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140619 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140719 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602008030954 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140721 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
26N | No opposition filed |
Effective date: 20141222 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602008030954 Country of ref document: DE Effective date: 20141222 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150121 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602008030954 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20150121 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20150121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150801 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150121 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150131 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150930 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140620 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20080121 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20140319 |