A hot water appliance includes a housing defining an inner space; a heat source arranged in the inner space of the housing and comprising at least one burner; a flue gas discharge arranged in the inner space of the housing and configured to discharge combustion gases of the at least one burner therethrough; and a heat exchanger arranged in the inner space of the housing and associated with the flue gas discharge. The combustion gases of the at least one burner form a first heat exchanging fluid of the heat exchanger associated with the flue gas discharge. A flue gas discharge for a hot water appliance and a method for heating a fluid are also described.
F24H 8/00 - Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
3.
Operating element and appliance provided therewith
A domestic appliance has an operating element, the operating element comprising a carrier, at least one pressure sensor configured for detection of an operation of the operating element, and at least one light source. A control is configured to switch the light source on or off subject to a sensor signal coming from the pressure sensor. At least one light conductor is arranged close to the light source and is configured to conduct light from the light source to at least a side of the light conductor remote from the carrier. Provided on or close to the side of the light conductor remote from the carrier is a screen comprising at least one opaque part and at least one translucent part, which together form a symbol.
F24D 19/10 - Arrangement or mounting of control or safety devices
G06F 3/0362 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
H03K 17/965 - Switches controlled by moving an element forming part of the switch
F21V 11/02 - Screens not covered by groups , , or using parallel laminae or strips, e.g. of Venetian-blind type
F21V 23/04 - Arrangement of electric circuit elements in or on lighting devices the elements being switches
F21V 31/00 - Gas-tight or water-tight arrangements
F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
F21W 131/30 - Lighting for domestic or personal use
4.
Centrifugal fan and heating device provided therewith
The present invention relates to a centrifugal fan comprising a fan housing with a radial outlet opening arranged in a radial peripheral wall thereof, a rotor arranged rotatably in the fan housing and provided close to an axial rotation axis thereof with a rotor inflow opening, wherein the fan housing is provided close to the rotation axis of the rotor with an axial inlet opening, and a tube part which extends in the fan housing from the radial outlet opening arranged in the radial peripheral wall and inward along the radial peripheral wall. The invention further relates to a heating device comprising a burner with a fuel mixture infeed opening, a centrifugal fan according to the invention, and wherein a fluid connection is provided between the fuel mixture infeed opening of the burner and the outlet opening of the centrifugal fan.
F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing
F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
A flow controller for a hot water appliance includes a housing having at least three channels, a branching chamber arranged in the housing and in which the at least three channels debouch, and in which a shut-off valve is arranged with which at least two of the three channels can be closed and left clear. The shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other. A hot water appliance can include such a flow controller.
F24H 9/20 - Arrangement or mounting of control or safety devices
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
F24D 19/10 - Arrangement or mounting of control or safety devices
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
6.
Device and method for mixing combustible gas and combustion air, hot water installation provided therewith, corresponding thermal mass flow sensor and method for measuring a mass flow rate of a gas flow
A device for mixing combustible gas and combustion air, hot water installation, and corresponding thermal mass flow sensor and method. The device includes an air line, a gas line with a control valve, a first measuring line connecting the air and gas lines, and a second measuring line connecting the first measuring line to the gas and/or air line, forming a three-way intersection. A thermal mass flow sensor includes first and second temperature sensors in the first measuring line, positioned respectively in a gas flow between the three-way intersection and the air line and in a gas flow between the three-way intersection and the gas line. A controller controls the control valve based on a difference, measured by the flow sensor, between mass flow rate of gas between the three-way intersection and the air line and mass flow rate of gas between the three-way intersection and the gas line.
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
G05D 11/13 - Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow
G01F 1/688 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
The invention relates to a method and a device for determining in a heating appliance whether ignition of the mixture of fluid fuel and air has taken place, comprising the following steps of: applying an electrical ignition signal to a measuring circuit; filtering a combustion signal from the ignition signal; comparing the detected combustion signal to a predetermined pattern; and establishing that the anticipated combustion signal took place during a predetermined period of time.
F23N 5/20 - Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
9.
HOT WATER APPLIANCE, FLUE GAS DISCHARGE THEREFOR AND METHOD FOR HEATING A FLUID
The present invention relates to a hot water appliance, comprising: a housing defining an inner space; a heat source arranged in the inner space of the housing and comprising at least one burner; a flue gas discharge arranged in the inner space of the housing and configured to discharge combustion gases of the at least one burner therethrough; and a heat exchanger arranged in the inner space of the housing and associated with the flue gas discharge, and wherein the combustion gases of the at least one burner form a first heat exchanging fluid of the heat exchanger associated with the flue gas discharge. The invention further relates to a flue gas discharge for a hot water appliance and a method for heating a fluid.
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
10.
HOT WATER APPLIANCE, FLUE GAS DISCHARGE THEREFOR AND METHOD FOR HEATING A FLUID
The present invention relates to a hot water appliance, comprising: a housing defining an inner space; a heat source arranged in the inner space of the housing and comprising at least one burner; a flue gas discharge arranged in the inner space of the housing and configured to discharge combustion gases of the at least one burner therethrough; and a heat exchanger arranged in the inner space of the housing and associated with the flue gas discharge, and wherein the combustion gases of the at least one burner form a first heat exchanging fluid of the heat exchanger associated with the flue gas discharge. The invention further relates to a flue gas discharge for a hot water appliance and a method for heating a fluid.
F24H 1/14 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
F24H 1/16 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
F24H 8/00 - Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
F28D 7/08 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
11.
OPERATING ELEMENT AND APPLIANCE PROVIDED THEREWITH
The present invention relates to a domestic appliance with an operating element, the operating element comprising: - a carrier, at least one pressure sensor configured for detection of an operation of the operating element, and at least one light source; - a control which is configured to switch the light source on or off subject to a sensor signal coming from the pressure sensor; - at least one light conductor arranged close to the light source and configured to conduct light from the light source to at least a side of the light conductor remote from the carrier; and - wherein provided on or close to the side of the light conductor remote from the carrier is a screen comprising at least one opaque part and at least one translucent part, which together form a symbol.
G06F 3/0362 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
F24D 19/10 - Arrangement or mounting of control or safety devices
The present invention relates to a domestic appliance with an operating element, the operating element comprising: - a carrier, at least one pressure sensor configured for detection of an operation of the operating element, and at least one light source; - a control which is configured to switch the light source on or off subject to a sensor signal coming from the pressure sensor; - at least one light conductor arranged close to the light source and configured to conduct light from the light source to at least a side of the light conductor remote from the carrier; and - wherein provided on or close to the side of the light conductor remote from the carrier is a screen comprising at least one opaque part and at least one translucent part, which together form a symbol.
G06F 3/0362 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
H03K 17/968 - Switches controlled by moving an element forming part of the switch using opto-electronic devices
F24D 19/10 - Arrangement or mounting of control or safety devices
The present invention relates to a centrifugal fan comprising a fan housing with a radial outlet opening arranged in a radial peripheral wall thereof, a rotor arranged rotatably in the fan housing and provided close to an axial rotation axis thereof with a rotor inflow opening, wherein the fan housing is provided close to the rotation axis of the rotor with an axial inlet opening, and a tube part which extends in the fan housing from the radial outlet opening arranged in the radial peripheral wall and inward along the radial peripheral wall. The invention further relates to a heating device comprising a burner with a fuel mixture infeed opening, a centrifugal fan according to the invention, and wherein a fluid connection is provided between the fuel mixture infeed opening of the burner and the outlet opening of the centrifugal fan.
The present invention relates to a centrifugal fan comprising a fan housing with a radial outlet opening arranged in a radial peripheral wall thereof, a rotor arranged rotatably in the fan housing and provided close to an axial rotation axis thereof with a rotor inflow opening, wherein the fan housing is provided close to the rotation axis of the rotor with an axial inlet opening, and a tube part which extends in the fan housing from the radial outlet opening arranged in the radial peripheral wall and inward along the radial peripheral wall. The invention further relates to a heating device comprising a burner with a fuel mixture infeed opening, a centrifugal fan according to the invention, and wherein a fluid connection is provided between the fuel mixture infeed opening of the burner and the outlet opening of the centrifugal fan.
The invention relates to a heat exchanger, comprising a hollow central body which is received in a housing and defines an inner channel for a first medium, wherein a space surrounding the central body in the housing defines at least one outer channel for a second medium, wherein the central body has on either side parts which protrude from a main plane thereof and are connected to mutually opposite parts of the housing and which bound the outer channel such that the outer channel has a meandering form substantially parallel to the main plane of the central body.
The invention further relates to a method for forming such a heat exchanger, and to a method for use thereof.
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F24H 1/28 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
16.
FLOW CONTROLLER AND A HOT WATER APPLIANCE PROVIDED THEREWITH
The present invention relates to a flow controller for a hot water appliance, comprising: - a housing comprising at least three channels; - a branching chamber which is arranged in the housing and in which the at least three channels debouch and in which a shut-off valve is arranged with which at least two of the three channels can be closed and left clear; and - wherein the shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other. The invention further relates to a hot water appliance provided with such a flow controller.
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
F24H 1/12 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
17.
FLOW CONTROLLER AND A HOT WATER APPLIANCE PROVIDED THEREWITH
The present invention relates to a flow controller for a hot water appliance, comprising: - a housing comprising at least three channels; - a branching chamber which is arranged in the housing and in which the at least three channels debouch and in which a shut-off valve is arranged with which at least two of the three channels can be closed and left clear; and - wherein the shut-off valve has an adjustment range with a first extreme position in which a first channel and a second channel of the at least three channels are in flow connection with each other via the branching chamber and in which the first channel and a third channel of the at least three channels are substantially closed off from each other. The invention further relates to a hot water appliance provided with such a flow controller.
F24H 9/20 - Arrangement or mounting of control or safety devices
F16K 11/044 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
18.
DEVICE AND METHOD FOR MIXING COMBUSTIBLE GAS AND COMBUSTION AIR, HOT WATER INSTALLATION PROVIDED THEREWITH, CORRESPONDING THERMAL MASS FLOW SENSOR AND METHOD FOR MEASURING A MASS FLOW RATE OF A GAS FLOW
The invention relates to a device for mixing combustible gas and combustion air, hot water installation provided therewith, and corresponding thermal mass flow sensor and method. The device comprises: an air duct (4, 104, 204, 304, 404, 504); a gas line (6, 106, 206, 306, 406, 506) with a control valve (12, 112, 212, 312, 412, 512); a first measuring line (14, 114, 214, 314, 414, 514) which connects the air duct and the gas line; a second measuring line (16, 116, 216, 316, 416, 516) which connects the first measuring line to the gas line and/or the air duct, thus forming a three-way branch; a thermal mass flow sensor (18, 18', 118, 618, 718, 818, 918) comprising a first temperature sensor (22, 22', 622, 722a, 722b, 1022) and second temperature sensor (24, 24', 624, 724a, 724b 1024) in the first measuring line, which are positioned such that they are situated respectively in a gas flow between the three-way branch and the air duct and in a gas flow between the three-way branch and the gas line during use; and a controller which controls the control valve on the basis of a difference, measured by the thermal mass flow sensor, between the mass flow rate of the gas flow between the three-way branch and the air duct and the mass flow rate of the gas flow between the three-way brach and the gas line.
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow
19.
DEVICE AND METHOD FOR MIXING COMBUSTIBLE GAS AND COMBUSTION AIR, HOT WATER INSTALLATION PROVIDED THEREWITH, CORRESPONDING THERMAL MASS FLOW SENSOR AND METHOD FOR MEASURING A MASS FLOW RATE OF A GAS FLOW
The invention relates to a device for mixing combustible gas and combustion air, hot water installation provided therewith, and corresponding thermal mass flow sensor and method. The device comprises: an air duct (4, 104, 204, 304, 404, 504); a gas line (6, 106, 206, 306, 406, 506) with a control valve (12, 112, 212, 312, 412, 512); a first measuring line (14, 114, 214, 314, 414, 514) which connects the air duct and the gas line; a second measuring line (16, 116, 216, 316, 416, 516) which connects the first measuring line to the gas line and/or the air duct, thus forming a three-way branch; a thermal mass flow sensor (18, 18', 118, 618, 718, 818, 918) comprising a first temperature sensor (22, 22', 622, 722a, 722b, 1022) and second temperature sensor (24, 24', 624, 724a, 724b 1024) in the first measuring line, which are positioned such that they are situated respectively in a gas flow between the three-way branch and the air duct and in a gas flow between the three-way branch and the gas line during use; and a controller which controls the control valve on the basis of a difference, measured by the thermal mass flow sensor, between the mass flow rate of the gas flow between the three-way branch and the air duct and the mass flow rate of the gas flow between the three-way brach and the gas line.
The invention relates to a method and a device for determining in a heating appliance whether ignition of the mixture of fluid fuel and air has taken place, comprising the following steps of: - applying an electrical ignition signal to a measuring circuit; - filtering a combustion signal from the ignition signal; - comparing the detected combustion signal to a predetermined pattern; and - establishing that the anticipated combustion signal took place during a predetermined period of time.
The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof.
The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.
F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates
F24H 1/28 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
F28F 1/02 - Tubular elements of cross-section which is non-circular
F28F 1/06 - Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
F24H 1/36 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
22.
METHOD AND DEVICE FOR DETERMINING WHETHER IGNITION HAS OCCURRED
The invention relates to a method and a device for determining in a heating appliance whether ignition of the mixture of fluid fuel and air has taken place, comprising the following steps of: - applying an electrical ignition signal to a measuring circuit; - filtering a combustion signal from the ignition signal; - comparing the detected combustion signal to a predetermined pattern; and - establishing that the anticipated combustion signal took place during a predetermined period of time.
The invention relates to a water heating device, comprising a burner (20) and a flame current measuring device (100) for measuring a flame current, which measuring device comprises two electrodes and a voltage source (14), wherein each of the poles (18, 19) of the voltage source is connected to one of the electrodes. The water heating device further comprises a heat exchanger (40) which is electrically insulated relative to the burner. The burner and the heat exchanger here form the electrodes of the flame current measuring device. The heat exchanger functioning as electrode can be earthed (41). The measured flame current can be used to determine the excess air factor of the combustion. The water heating device can further comprise an air/fuel controller for controlling the air/fuel ratio, wherein the air/fuel controller uses the determined excess air factor to control the air/fuel ratio. The invention also relates to a method for measuring a flame current in a flame.
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
F23N 5/14 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermo-sensitive resistors
F23N 5/26 - Systems for controlling combustion Details
F24H 9/20 - Arrangement or mounting of control or safety devices
24.
HEAT EXCHANGER, METHOD FOR FORMING THEREOF AND USE THEREOF
The invention relates to a heat exchanger (10), comprising a hollow central body (1) which is received in a housing (2) and defines an inner channel (3) for a first medium (Ml), wherein a space (4) surrounding the central body (1) in the housing (2) defines at least one outer channel for a second medium (M2), wherein the central body (1) has on either side parts (5) which protrude from a main plane thereof and the central body (1) comprises at least two substantially parallel profiled plates (13,14) connected loacally to each other, and the parts (5) and are connected to mutually opposite parts of the housing (2) and which bound the outer channel such that the outer channel has a meandering form substantially parallel to the main plane of the central body (1). The invention further relates to a method for forming such a heat exchanger, and to a method for use thereof.
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
25.
HEAT EXCHANGER, METHOD FOR FORMING THEREOF AND USE THEREOF
The invention relates to a heat exchanger (10), comprising a hollow central body (1) which is received in a housing (2) and defines an inner channel (3) for a first medium (Ml), wherein a space (4) surrounding the central body (1) in the housing (2) defines at least one outer channel for a second medium (M2), wherein the central body (1) has on either side parts (5) which protrude from a main plane thereof and the central body (1) comprises at least two substantially parallel profiled plates (13,14) connected loacally to each other, and the parts (5) and are connected to mutually opposite parts of the housing (2) and which bound the outer channel such that the outer channel has a meandering form substantially parallel to the main plane of the central body (1). The invention further relates to a method for forming such a heat exchanger, and to a method for use thereof.
F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
26.
HEAT EXCHANGER, HEATING DEVICE, HEATING SYSTEM AND METHOD FOR HEATING WATER
The present invention relates to a heat exchanger, comprising: - a first conduit circuit for guiding a first fluid; - a second conduit circuit for guiding a second fluid; - wherein the first conduit circuit and the second conduit circuit are both arranged in a heat-conducting material which is provided on a first side with fins; - wherein the first conduit circuit substantially defines a plane arranged substantially parallel to and close to the first side of the heat-conducting material; - wherein the second conduit circuit is arranged substantially along the first conduit circuit; - wherein the second conduit circuit extends substantially along only a limited part of the plane defined by the first conduit circuit. The invention further relates to a hot water device and hot water system provided with such a heat exchanger, and to a method for application thereof.
F24H 1/52 - Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F24H 1/41 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
F24D 11/02 - Central heating systems using heat accumulated in storage masses using heat pumps
27.
TUBE FOR A HEAT EXCHANGER WITH AN AT LEAST PARTIALLY VARIABLE CROSS-SECTION, AND HEAT EXCHANGER EQUIPPED THEREWITH
The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof. The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.
F28F 1/06 - Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
F24H 1/28 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
F28F 1/02 - Tubular elements of cross-section which is non-circular
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
28.
TUBE FOR A HEAT EXCHANGER WITH AN AT LEAST PARTIALLY VARIABLE CROSS-SECTION, AND HEAT EXCHANGER EQUIPPED THEREWITH
The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof. The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.
F28F 1/06 - Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
F28F 1/02 - Tubular elements of cross-section which is non-circular
F28F 13/08 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
F24H 1/28 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body including one or more furnace or fire tubes
29.
Mixture supply system for a hot water appliance, a hot water appliance comprising such a mixture supply system and a method for mixing a fuel and an oxidizer
The invention relates to a mixture supply system which is adapted for mounting in a hot water appliance and which is adapted to supply a combustible mixture to a burner of the hot water appliance, comprising a fuel feed for a fluid fuel, an oxidizer feed for a fluid oxidizer, a mixing chamber for mixing the fuel and the oxidizer in order to form the combustible mixture, a discharge for discharging the combustible mixture from the mixing chamber and a fan for urging the fuel and oxidizer from the respective feed to the mixing chamber, and urging the mixture therefrom to the discharge, wherein the fan is adapted to act directly on both the fuel and the oxidizer. The fan does not so much make use of an airflow with gas drawn in by a venturi, but gas is supplied separately to the fan.
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
F23D 14/64 - Mixing devicesMixing tubes with injectors
F23J 11/02 - Devices for conducting smoke or fumes, e.g. flues for conducting smoke or fumes originating from various locations to the outside, e.g. in locomotive sheds, in garages
The invention comprises a method for preparing hot tap water, comprising of feeding tap water from a mains water supply, and guiding the supplied tap water to a tap water heating device and heating it therein, characterized by preheating the supplied tap water before it reaches the tap water heating device by making use of residual heat released during heating or cooling of a space. The invention also comprises a combined system for climate control and tap water provision, comprising at least one space heating or cooling member arranged in a space, the climate of which has to be controlled, a feed conduit for tap water connected to a mains water supply, and a device connected to the feed conduit for heating the tap water, characterized by a device for preheating the tap water placed between the tap water feed conduit and the tap water heating device, which preheating device is connected to the at least one space heating or cooling member. The invention likewise comprises a preheating device, evidently intended for use in a system as described above.
The invention relates to a device for heating water, comprising a heating module and a heat exchanger connected thereto which are enclosed by an insulating material, wherein the insulating material comprises a vacuum-packed core material. In the heating device the heating module and the heat exchanger are further received in a housing with a number of walls, wherein the vacuum-packed core material is arranged between one of the walls and the heating module and/or the heat exchanger.
The invention relates to a device for heating water, comprising a heating module and a heat exchanger connected thereto which are enclosed by an insulating material, wherein the insulating material comprises a vacuum-packed core material. In the heating device the heating module and the heat exchanger are further received in a housing with a number of walls, wherein the vacuum-packed core material is arranged between one of the walls and the heating module and/or the heat exchanger.
The invention relates to a water heating device, comprising a burner (20) and a flame current measuring device (100) for measuring a flame current, which measuring device comprises two electrodes and a voltage source (14), wherein each of the poles (18, 19) of the voltage source is connected to one of the electrodes. The water heating device further comprises a heat exchanger (40) which is electrically insulated relative to the burner. The burner and the heat exchanger here form the electrodes of the flame current measuring device. The heat exchanger functioning as electrode can be earthed (41). The measured flame current can be used to determine the excess air factor of the combustion. The water heating device can further comprise an air/fuel controller for controlling the air/fuel ratio, wherein the air/ fuel controller uses the determined excess air factor to control the air/ fuel ratio. The invention also relates to a method for measuring a flame current in a flame.
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
The invention relates to a water heating device, comprising a burner (20) and a flame current measuring device (100) for measuring a flame current, which measuring device comprises two electrodes and a voltage source (14), wherein each of the poles (18, 19) of the voltage source is connected to one of the electrodes. The water heating device further comprises a heat exchanger (40) which is electrically insulated relative to the burner. The burner and the heat exchanger here form the electrodes of the flame current measuring device. The heat exchanger functioning as electrode can be earthed (41). The measured flame current can be used to determine the excess air factor of the combustion. The water heating device can further comprise an air/fuel controller for controlling the air/fuel ratio, wherein the air/ fuel controller uses the determined excess air factor to control the air/ fuel ratio. The invention also relates to a method for measuring a flame current in a flame.
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
The present invention relates to a hot water appliance comprising a heating member for heating water, a control unit for controlling the heating member, the control unit comprising a memory for storing a desired temperature of a space to be heated, and an input/output unit, wherein the input/output unit is adapted to receive a signal representative of a measured temperature, and wherein the control unit controls the heating member on the basis of the desired temperature and the measured temperature.
F24D 19/10 - Arrangement or mounting of control or safety devices
36.
MIXTURE SUPPLY SYSTEM FOR A HOT WATER APPLIANCE, A HOT WATER APPLIANCE COMPRISING SUCH A MIXTURE SUPPLY SYSTEM AND A METHOD FOR MIXING A FUEL AND AN OXIDIZER
The invention relates to a mixture supply system which is adapted for mounting in a hot water appliance and which is adapted to supply a combustible mixture to a burner of the hot water appliance, comprising a fuel feed for a fluid fuel, an oxidizer feed for a fluid oxidizer, a mixing chamber for mixing the fuel and the oxidizer in order to form the combustible mixture, a discharge for discharging the combustible mixture from the mixing chamber and a fan for urging the fuel and oxidizer from the respective feed to the mixing chamber, and urging the mixture therefrom to the discharge, wherein the fan is adapted to act directly on both the fuel and the oxidizer. The fan does not so much make use of an airflow with gas drawn in by a venturi, but gas is supplied separately to the fan.
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
F23D 14/64 - Mixing devicesMixing tubes with injectors
37.
MIXTURE SUPPLY SYSTEM FOR A HOT WATER APPLIANCE, A HOT WATER APPLIANCE COMPRISING SUCH A MIXTURE SUPPLY SYSTEM AND A METHOD FOR MIXING A FUEL AND AN OXIDIZER
The invention relates to a mixture supply system which is adapted for mounting in a hot water appliance and which is adapted to supply a combustible mixture to a burner of the hot water appliance, comprising a fuel feed for a fluid fuel, an oxidizer feed for a fluid oxidizer, a mixing chamber for mixing the fuel and the oxidizer in order to form the combustible mixture, a discharge for discharging the combustible mixture from the mixing chamber and a fan for urging the fuel and oxidizer from the respective feed to the mixing chamber, and urging the mixture therefrom to the discharge, wherein the fan is adapted to act directly on both the fuel and the oxidizer. The fan does not so much make use of an airflow with gas drawn in by a venturi, but gas is supplied separately to the fan.
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
F23D 14/64 - Mixing devicesMixing tubes with injectors
38.
FAN HOUSING FOR A FAN FOR SUPPLYING A FUEL/OXIDIZER MIXTURE TO A BURNER, INSERT AND SUPPLY DEVICE THEREFOR
Fan housing for a fan for supplying a fuel/oxidizer mixture to a burner, comprising: a supply opening (22); a fluid supply space (26) debouching at the supply opening; a first supply means (28) for supplying a fluid-like fuel; a second supply means (52) for supplying an oxidizing fluid; wherein the fluid supply space comprises mixing means (50) for mixing the fluid-like fuel with the oxidizing fluid; and wherein the supply opening lies at an angle relative to the supply direction of the fluid in the fluid supply space.
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
A heat exchanger is manufactured from a single piece of heat-conducting material and comprises fins for guiding a fluid and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the lateral direction lies substantially perpendicularly of the fins.
A heat exchanger (10) is manufactured from a single piece of heat-conducting material and comprises fins (20) for guiding a fluid and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins (24) which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the lateral direction lies substantially perpendicularly of the fins.
F24H 1/38 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
A heat exchanger (10) is manufactured from a single piece of heat-conducting material and comprises fins (20) for guiding a fluid and for transferring heat between the fluid and the heat exchanger, wherein between the fins are provided transverse fins (24) which extend in a direction substantially transversely of the fins over a distance which is less than the distance between the fins and in a direction substantially transversely of the flow direction of the fluid, wherein the transverse fins are arranged alternately close to or on mutually adjacent fins in order to cause a fluid flowing between the fins to follow a meandering path between the fins, wherein the lateral direction lies substantially perpendicularly of the fins.
F24H 1/38 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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