EP4209719A1 - Method for operating a heating system comprising a membrane expansion vessel - Google Patents
Method for operating a heating system comprising a membrane expansion vessel Download PDFInfo
- Publication number
- EP4209719A1 EP4209719A1 EP23150526.4A EP23150526A EP4209719A1 EP 4209719 A1 EP4209719 A1 EP 4209719A1 EP 23150526 A EP23150526 A EP 23150526A EP 4209719 A1 EP4209719 A1 EP 4209719A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating system
- expansion vessel
- pressure
- operating
- difference
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000012528 membrane Substances 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 1
- 238000012544 monitoring process Methods 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
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
- F24D3/1016—Tanks having a bladder
-
- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
-
- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
- F24D19/1036—Having differential pressure measurement facilities
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
- F24D2220/0278—Expansion vessels
-
- 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
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
Definitions
- the invention relates to a method for operating a heating system having a membrane expansion vessel according to the preamble of patent claim 1.
- a method of the type mentioned is from the patent document DE 103 35 310 B3 known.
- a first pressure in the heating system at a first operating temperature and on the other hand a second pressure of the heating system at a second operating temperature are recorded within individual measurement intervals.
- This method is used to determine whether water has passed from the water side to the gas side in the membrane expansion vessel, which is known to have a water side and a gas side separated by an elastic membrane.
- the object of the invention is to improve a method of the type mentioned at the outset.
- a method is to be created with which gas transfer from the gas side to the water side can also be determined.
- a first difference between the first and the second pressure from one measurement interval is compared to a second difference between the first and second pressures from another measurement interval, and a signal is generated from a predetermined deviation between the difference amounts.
- the solution according to the invention is characterized in that the admission pressure of a heating system is automatically monitored by targeted evaluation of trended pressure data.
- An evaluation algorithm is provided that makes it possible to locate the cause in the event of a drop in system pressure.
- the solution according to the invention enables statements to be made about the state of the gas cushion in the membrane expansion vessel. This makes it possible to check the diaphragm expansion tank during maintenance, should this be necessary. If, on the other hand, a stable admission pressure of the diaphragm expansion vessel is detected, the check can be omitted.
- the solution according to the invention thus significantly reduces the time required for system maintenance.
- the Figures 1 and 2 serve, as already mentioned, to explain the method according to the invention for operating a heating system having a membrane expansion vessel.
- a first pressure in the heating system at a first operating temperature and on the other hand a second pressure of the heating system at a second operating temperature is first recorded in a manner known per se within individual measurement intervals.
- the first operating temperature preferably occurs when the heat source is switched on (for example an oil or gas burner) and the second operating temperature when the heat source is switched off.
- the pressure of the water in the heating circuit of the heating system is preferably measured with a suitable pressure sensor.
- a first difference between the first and second pressure from one measurement interval is compared with a second difference between the first and second pressure from another measurement interval and from a predetermined deviation a signal is generated between the difference amounts.
- measurement data determined in a measurement interval are stored (in a suitable memory).
- a reference mean value between the first and second pressure is formed, that during operation of the heating system a momentary mean value is formed between the first and second pressure, and that from a predetermined difference a signal is generated between the reference average and the instantaneous average.
- a diaphragm expansion vessel filled completely with gas warning signal is generated.
- a complete absence of pressure fluctuations is to be understood as a sure indication that the so-called water reserve has been displaced from the membrane expansion vessel, i.e. the inlet pressure of the membrane expansion vessel is higher than the pressure of the heating system when the heating water is heated.
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)
- Measuring Fluid Pressure (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Betrieb einer ein Membranausdehnungsgefäß aufweisenden Heizungsanlage, bei dem innerhalb einzelner Messintervalle einerseits ein erster Druck in der Heizungsanlage (1) bei einer ersten Betriebstemperatur und andererseits ein zweiter Druck der Heizungsanlage (1) bei einer zweiten Betriebstemperatur erfasst wird. Nach der Erfindung ist vorgesehen, dass zur Prüfung der Funktionstüchtigkeit der Heizungsanlage (1) mit ihrem Membranausdehnungsgefäß (2) ein erster Differenzbetrag zwischen dem ersten und zweiten Druck aus einem Messintervall mit einem zweiten Differenzbetrag zwischen dem ersten und zweiten Druck aus einem anderen Messintervall verglichen und ab einer vorbestimmten Abweichung zwischen den Differenzbeträgen ein Signal erzeugt wird.The invention relates to a method for operating a heating system with a diaphragm expansion vessel, in which, within individual measurement intervals, a first pressure in the heating system (1) is recorded at a first operating temperature and a second pressure in the heating system (1) is recorded at a second operating temperature. According to the invention, in order to test the functionality of the heating system (1) with its membrane expansion vessel (2), a first difference between the first and second pressure from one measurement interval is compared with a second difference between the first and second pressure from another measurement interval and a signal is generated from a predetermined deviation between the difference amounts.
Description
Die Erfindung betrifft ein Verfahren zum Betrieb einer ein Membranausdehnungsgefäß aufweisenden Heizungsanlage gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for operating a heating system having a membrane expansion vessel according to the preamble of patent claim 1.
Ein Verfahren der eingangs genannten Art ist aus dem Patentdokument
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu verbessern. Insbesondere soll ein Verfahren geschaffen werden, mit dem auch ein Gasübertritt von der Gas- zur Wasserseite ermittelbar ist.The object of the invention is to improve a method of the type mentioned at the outset. In particular, a method is to be created with which gas transfer from the gas side to the water side can also be determined.
Diese Aufgabe ist mit einem Verfahren der eingangs genannten Art durch die im Kennzeichen des Patentanspruchs 1 aufgeführten Merkmale gelöst.This object is achieved with a method of the type mentioned by the features listed in the characterizing part of patent claim 1.
Nach der Erfindung ist also vorgesehen, dass zur Prüfung der Funktionstüchtigkeit der Heizungsanlage mit ihrem Membranausdehnungsgefäß ein erster Differenzbetrag zwischen dem ersten und zweiten Druck aus einem Messintervall mit einem zweiten Differenzbetrag zwischen dem ersten und zweiten Druck aus einem anderen Messintervall verglichen und ab einer vorbestimmten Abweichung zwischen den Differenzbeträgen ein Signal erzeugt wird.According to the invention it is therefore provided that to check the functionality of the heating system with its membrane expansion vessel, a first difference between the first and the second pressure from one measurement interval is compared to a second difference between the first and second pressures from another measurement interval, and a signal is generated from a predetermined deviation between the difference amounts.
Mit anderen Worten zeichnet sich die erfindungsgemäße Lösung somit dadurch aus, dass der Vordruck einer Heizungsanlage durch gezielte Auswertung getrendeter Druckdaten automatisch überwacht wird. Dabei ist ein Auswertungsalgorithmus vorgesehen, der es ermöglicht, im Falle eines sinkenden Anlagendrucks die Ursache zu verorten. Außerdem ermöglicht die erfindungsgemäße Lösung Aussagen über den Zustand des Gaspolsters im Membranausdehnungsgefäß. So ist es möglich, die Überprüfung des Membranausdehnungsgefäßes bei der Wartung anlassbezogen vorzunehmen, falls das notwendig ist. Wird dagegen ein stabiler Vordruck des Membranausdehnungsgefäß detektiert, kann die Überprüfung entfallen. Die erfindungsgemäße Lösung reduziert dadurch den Zeitaufwand bei der Anlagenwartung deutlich.In other words, the solution according to the invention is characterized in that the admission pressure of a heating system is automatically monitored by targeted evaluation of trended pressure data. An evaluation algorithm is provided that makes it possible to locate the cause in the event of a drop in system pressure. In addition, the solution according to the invention enables statements to be made about the state of the gas cushion in the membrane expansion vessel. This makes it possible to check the diaphragm expansion tank during maintenance, should this be necessary. If, on the other hand, a stable admission pressure of the diaphragm expansion vessel is detected, the check can be omitted. The solution according to the invention thus significantly reduces the time required for system maintenance.
Andere vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Patentansprüchen.Other advantageous developments emerge from the dependent patent claims.
Der Vollständigkeit halber wird noch auf das Dokument
Das erfindungsgemäße Verfahren einschließlich seiner vorteilhaften Weiterbildungen gemäß der abhängigen Patentansprüche wird nachfolgend anhand der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels näher erläutert.The method according to the invention, including its advantageous developments, according to the dependent patent claims is explained in more detail below with reference to the graphic representation of a preferred exemplary embodiment.
Es zeigt
- Figur 1
- einen typischen Verlauf (Druck p über der Zeit t) bei einem Verlust auf der Wasserseite; und
- Figur 2
- einen typischen Verlauf (Druck p über der Zeit t) bei einem Verlust auf der Gasseite.
- figure 1
- a typical course (pressure p over time t) in the event of a loss on the water side; and
- figure 2
- a typical curve (pressure p over time t) for a loss on the gas side.
Die
Wesentlich für das erfindungsgemäße Verfahren ist nun, dass zur Prüfung der Funktionstüchtigkeit der Heizungsanlage mit ihrem Membranausdehnungsgefäß ein erster Differenzbetrag zwischen dem ersten und zweiten Druck aus einem Messintervall mit einem zweiten Differenzbetrag zwischen dem ersten und zweiten Druck aus einem anderen Messintervall verglichen und ab einer vorbestimmten Abweichung zwischen den Differenzbeträgen ein Signal erzeugt wird. Dabei ist besonders bevorzugt vorgesehen, dass in einem Messintervall ermittelte Messdaten (in einem geeigneten Speicher) abgespeichert werden.It is now essential for the method according to the invention that, in order to test the functionality of the heating system with its membrane expansion vessel, a first difference between the first and second pressure from one measurement interval is compared with a second difference between the first and second pressure from another measurement interval and from a predetermined deviation a signal is generated between the difference amounts. In this case, it is particularly preferred that measurement data determined in a measurement interval are stored (in a suitable memory).
Noch etwas genauer betrachtet, ist dabei besonders bevorzugt vorgesehen, dass bei Initialisierung der Heizungsanlage ein Referenzmittelwert zwischen zwischen dem ersten und zweiten Druck gebildet wird, dass während des Betriebs der Heizungsanlage ein Momentanmittelwert zwischen dem ersten und zweiten Druck gebildet wird und dass ab einer vorgegebenen Differenz zwischen dem Referenzmittelwert und dem Momentanmittelwert ein Signal erzeugt wird.Looking at it a little more closely, it is particularly preferred that when the heating system is initialized, a reference mean value between the first and second pressure is formed, that during operation of the heating system a momentary mean value is formed between the first and second pressure, and that from a predetermined difference a signal is generated between the reference average and the instantaneous average.
Zur Realisierung einer möglichst permanenten Überwachung ist ferner bevorzugt vorgesehen, dass während des Betriebs der Heizungsanlage nach Beendigung eines Messintervalls ein nächstes Messintervall begonnen wird.In order to implement monitoring that is as permanent as possible, provision is also preferably made for a next measurement interval to be started during operation of the heating system after the end of a measurement interval.
Mit Bezug auf
Mit Bezug auf
Schließlich ist noch bevorzugt vorgesehen, dass, wenn der erste Differenzbetrag gleich dem zweiten Differenzbetrag ist, ein auf ein vollständig mit Gas gefülltes Membranausdehnungsgefäß hinweisendes Signal erzeugt wird. Mit anderen Worten ausgedrückt, ist ein vollständiges Fehlen an Druckschwankungen als sicherer Hinweis darauf zu verstehen, dass die sogenannte Wasservorlage aus dem Membranausdehnungsgefäß verdrängt worden ist, also der Vordruck des Membranausdehnungsgefäßes höher als der Druck der Heizungsanlage bei Erwärmung des Heizwassers ist.Finally, it is also preferably provided that, when the first differential amount is equal to the second differential amount, a diaphragm expansion vessel filled completely with gas warning signal is generated. In other words, a complete absence of pressure fluctuations is to be understood as a sure indication that the so-called water reserve has been displaced from the membrane expansion vessel, i.e. the inlet pressure of the membrane expansion vessel is higher than the pressure of the heating system when the heating water is heated.
Claims (8)
dadurch gekennzeichnet,
dass zur Prüfung der Funktionstüchtigkeit der Heizungsanlage mit ihrem Membranausdehnungsgefäß ein erster Differenzbetrag zwischen dem ersten und zweiten Druck aus einem Messintervall mit einem zweiten Differenzbetrag zwischen dem ersten und zweiten Druck aus einem anderen Messintervall verglichen und ab einer vorbestimmten Abweichung zwischen den Differenzbeträgen ein Signal erzeugt wird.Method for operating a heating system having a diaphragm expansion vessel, in which, within individual measurement intervals, a first pressure in the heating system is recorded at a first operating temperature and a second pressure in the heating system is recorded at a second operating temperature,
characterized,
that to check the functionality of the heating system with its diaphragm expansion vessel, a first difference between the first and second pressure from one measurement interval is compared with a second difference between the first and second pressure from another measurement interval and a signal is generated from a predetermined deviation between the difference amounts.
dadurch gekennzeichnet,
dass bei Initialisierung der Heizungsanlage ein Referenzmittelwert zwischen zwischen dem ersten und zweiten Druck gebildet wird, dass während des Betriebs der Heizungsanlage ein Momentanmittelwert zwischen dem ersten und zweiten Druck gebildet wird und dass ab einer vorgegebenen Differenz zwischen dem Referenzmittelwert und dem Momentanmittelwert ein Signal erzeugt wird.Method for operating a heating system having a membrane expansion vessel according to claim 1,
characterized,
that when the heating system is initialized, a mean reference value is formed between the first and second pressure, that a momentary mean value is formed between the first and second pressure during operation of the heating system, and that a signal is generated from a predetermined difference between the mean reference value and the momentary mean value.
dadurch gekennzeichnet,
dass während des Betriebs der Heizungsanlage nach Beendigung eines Messintervalls ein nächstes Messintervall begonnen wird.Method for operating a heating system having a membrane expansion vessel according to claim 1 or 2,
characterized,
that during the operation of the heating system after the end of a measurement interval, a next measurement interval is started.
dadurch gekennzeichnet,
dass, wenn der erste Differenzbetrag kleiner als der zweite Differenzbetrag ist, ein auf einen Wasserübertritt hinweisendes Signal erzeugt wird.Method for operating a heating system having a membrane expansion vessel according to one of Claims 1 to 3,
characterized,
that if the first difference is smaller than the second difference, a signal indicating that water has passed is generated.
dadurch gekennzeichnet,
dass, wenn der erste Differenzbetrag größer als der zweite Differenzbetrag ist, ein hinweisendes Signal erzeugt wird.Method for operating a heating system having a membrane expansion vessel according to one of Claims 1 to 3,
characterized,
that if the first difference is greater than the second difference, an advisory signal is generated.
dadurch gekennzeichnet,
dass, wenn der erste Differenzbetrag gleich dem zweiten Differenzbetrag ist, ein auf ein vollständig mit Gas gefülltes Membranausdehnungsgefäß hinweisendes Signal erzeugt wird.Method for operating a heating system having a membrane expansion vessel according to one of Claims 1 to 3,
characterized,
that when the first differential amount is equal to the second differential amount, a signal indicative of a fully gas-filled diaphragm expansion vessel is generated.
dadurch gekennzeichnet,
dass in einem Messintervall ermittelte Messdaten abgespeichert werden.Method for operating a heating system having a membrane expansion vessel according to one of Claims 1 to 6,
characterized,
that measurement data determined in a measurement interval are stored.
dadurch gekennzeichnet,
dass der Druck des Wassers im Heizkreis der Heizungsanlage gemessen wird.Method for operating a heating system having a membrane expansion vessel according to one of Claims 1 to 7,
characterized,
that the pressure of the water in the heating circuit of the heating system is measured.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102022100365.5A DE102022100365A1 (en) | 2022-01-10 | 2022-01-10 | Method for operating a heating system having a membrane expansion vessel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4209719A1 true EP4209719A1 (en) | 2023-07-12 |
EP4209719B1 EP4209719B1 (en) | 2024-06-19 |
Family
ID=84887765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23150526.4A Active EP4209719B1 (en) | 2022-01-10 | 2023-01-06 | Method for operating a heating system comprising a membrane expansion vessel |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4209719B1 (en) |
DE (1) | DE102022100365A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4427645A1 (en) * | 1994-08-04 | 1996-02-15 | Thienelt Martina Margot | Inlet pressure monitoring e.g. for expansion vessels in heating-, drinking-, hot-water-, and central heating systems |
DE10335310B3 (en) | 2003-08-01 | 2004-11-04 | Honeywell B.V. | Building central heating system with monitoring of pressure and temperature of circulated liquid for monitoring function of pressure equalization vessel in heating circuit |
EP2282129B1 (en) * | 2009-07-03 | 2012-09-05 | Viessmann Werke GmbH & Co. KG | Method for recognising a defective membrane expansion tank in a heating circuit with a burner |
DE102020207057A1 (en) | 2020-06-05 | 2021-12-09 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method for operating a monitoring device for monitoring a heating system, monitoring device and heating system with the monitoring device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618397A1 (en) | 1986-05-31 | 1987-12-03 | Winkelmann & Pannhoff Gmbh | Process and apparatus for electronic water level monitoring |
-
2022
- 2022-01-10 DE DE102022100365.5A patent/DE102022100365A1/en active Pending
-
2023
- 2023-01-06 EP EP23150526.4A patent/EP4209719B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4427645A1 (en) * | 1994-08-04 | 1996-02-15 | Thienelt Martina Margot | Inlet pressure monitoring e.g. for expansion vessels in heating-, drinking-, hot-water-, and central heating systems |
DE10335310B3 (en) | 2003-08-01 | 2004-11-04 | Honeywell B.V. | Building central heating system with monitoring of pressure and temperature of circulated liquid for monitoring function of pressure equalization vessel in heating circuit |
EP2282129B1 (en) * | 2009-07-03 | 2012-09-05 | Viessmann Werke GmbH & Co. KG | Method for recognising a defective membrane expansion tank in a heating circuit with a burner |
DE102020207057A1 (en) | 2020-06-05 | 2021-12-09 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method for operating a monitoring device for monitoring a heating system, monitoring device and heating system with the monitoring device |
Also Published As
Publication number | Publication date |
---|---|
EP4209719B1 (en) | 2024-06-19 |
DE102022100365A1 (en) | 2023-07-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4229834A1 (en) | Electrical processing of vacuum pressure information for vacuum unit - comparing each value measured before connection to vacuum aperture with previously stored dual level value below maximum measured value | |
EP1664715B1 (en) | Pressure transducer provided with a piezoelectric element for the detection of errors in separation membranes | |
DE102016105016A1 (en) | Method for detecting a failure of a sensor of a vehicle safety device | |
EP1275951B1 (en) | Pressure sensor and procedure for monitoring its functioning | |
EP4209719A1 (en) | Method for operating a heating system comprising a membrane expansion vessel | |
EP1817745B1 (en) | Method for determining information on a heat-exposed device | |
DE102018129659A1 (en) | Method for operating a fuel cell system and fuel cell vehicle | |
DE102008007397A1 (en) | Method for monitoring at least one glow plug of an internal combustion engine and device for this purpose | |
EP1972906B1 (en) | Method for recognising errors in a flow sensor | |
DE102014013197A1 (en) | Fuel cell system and method for assessing the state of the water balance | |
EP2282129B1 (en) | Method for recognising a defective membrane expansion tank in a heating circuit with a burner | |
DE102018216543B3 (en) | Procedure for calibrating a sensor system | |
EP1055162B1 (en) | Process and installation diagnostic method | |
DE102010035862B4 (en) | Diagnostic resistive pressure cell | |
DE19507891B4 (en) | Method for monitoring the liquid level in a container | |
WO2016058647A1 (en) | Method for determining a pressure measurement signal, and a pressure measurement arrangement for same | |
EP2354554A1 (en) | Method for determining the functional relationship of pumps | |
DE102005029114B4 (en) | Method for pressure measurement for combination pressure sensors in the vacuum range with at least two sensors and method for the automatic determination of an adjustment value for the "offset adjustment" in combination pressure sensors | |
DE102011051384A1 (en) | Method for monitoring operability of fluid-flow filter elements, involves selecting correction factor based on measured flow rate from group predetermined correction factors, and outputting corrected differential pressure | |
EP3988844A1 (en) | Heating system and method for operating a heating system | |
DE4403156B4 (en) | Method and device for carrying out the method for controlling a consumer | |
DE102010035965A1 (en) | Pressure Transmitter | |
DE102020129183A1 (en) | Pressure measuring device and method for manufacturing a pressure measuring device | |
EP3783448A1 (en) | Method for testing a production process for producing components | |
DE202009014452U1 (en) | Diaphragm expansion vessel |
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20231212 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F24D 19/10 20060101ALI20240207BHEP Ipc: F24D 3/10 20060101AFI20240207BHEP |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
INTG | Intention to grant announced |
Effective date: 20240228 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20240418 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502023000052 Country of ref document: DE |