1. A fumes-water type heat exchanger configured to be coupled to a burner for the production of boilers for domestic or industrial use characterised by the fact that the said exchanger is comprised essentially of an exchanging body (2) made of die-cast aluminium with two half-shells (2a and 2b) to be mounted mutually opposite and sealed by a casing (3) made of plastic or aluminium formed of two half-parts (3a and 3b) to be coupled to contain the exchanging body (2) therewithin so as to constitute two seats, one inside for the flow of fumes and the other outside for the flow of water.
2. A heat exchanger according to claim 1, characterised by the fact that each half-shell (2a and 2b) has a structure (20) composed of an essentially U-shaped element inside which there is a plurality of fins (21) arranged in a reciprocally parallel fashion and parallel to the sides of the U and outside the U-shaped element, there is a plurality of blades (22) coming out in a perpendicular fashion and which are reciprocally parallel and parallel to the base of the U and perpendicular to the fins (21) and a series of small grooves (27) arranged in a reciprocally parallel fashion and alternating with the blades (22), when the said two half-shells are mutually coupled, the fins of the first half-shell fit into the space between the fins of the second half-shell, creating a small V-shaped chamber and the first and last fins are opportunely positioned so as to have a space for the corresponding fin of the other half-shell to fit in, in order to assemble the entire exchanging body with two facing half-shells.
3. A heat exchanger according to claim 1, characterised by the fact that each half-part (3a and 3b) of the casing is substantially constituted of a C-shaped element inside which there is a series of dividers (31) also with a C-shaped conformation and which are arranged reciprocally parallel and spaced at slightly decreasing intervals in an upwards fashion while in the other half-part (3b) they are always reciprocally parallel and spaced at decreasing intervals in an upwards fashion, but have a conformation which envisages a first horizontal section (32) in an L shape located partly on the side of the C and partly on the wall, a second diagonal section (33) positioned upwards and a third section (34) which is horizontal again and positioned on the other side of the symmetrical C to the section (32) and at the free end of each divider (31) there is a projection (35) envisaged to fit into a groove (27) present on the external wall of the U-shaped element so as to create a route along which the water is forced to flow, with a spiral-shaped conformation, running from the bottom upwards and passing all around the exchanging body (2).
4. A heat exchanger according to claim 1, characterised by the fact that each half-part (3a and 3b) of the casing is substantially constituted of a C-shaped element in which there is a series of dividers (31) alternating with the dividers (31a) where the dividers (31) have a C-shaped conformation and are endowed with a small vertical wall (38) positioned centrally and in a perpendicular fashion to each of the said dividers, while the said dividers (31a) have a break at the centre and in the half-part (3a) the dividers (31 and 31a) are arranged reciprocally parallel and spaced at slightly decreasing intervals in an upwards fashion while in the other half-part (3b) they are also reciprocally parallel and spaced at decreasing intervals in an upwards fashion, but between the two half-parts, the dividers (31) and, similarly, the dividers (31a) are reciprocally staggered by one level.
5. A heat exchanger according to claim 4, characterised by the fact that, at the free end of each divider (31 and 31a) of each half-part (3a and 3b) of the casing, there is a projection (35) envisaged to fit into a groove (27) present on the outer wall of the U-shaped element of the exchanging body (2) so as to create a route along which the water is forced to flow, the conformation of which features parallel levels which make the water flow up on the side of the C to the top level and thus make the water run along a trajectory that is parallel in each half-part of the casing and which meets on each side of the casing, and then flows up to the top level, thereby flowing from the bottom upwards and passing around the exchanging body (2).
6. A heat exchanger according to claim 1, characterised by the fact that each half-part (3a and 3b) of the casing is substantially constituted of a C-shaped element inside which there is a series of dividers which have different conformations in which the half-part (3a) of the casing is endowed with a first divider (31), located at the bottom, with a C-shaped profile and endowed with a small vertical wall (38) positioned centrally and in a perpendicular fashion, followed by a divider (31a) with a break at the centre, and by a series of dividers (31) with a C-shaped profile and the half-part (3b) envisages the presence of a first divider (31) with a C-shaped profile, a second divider (31c) with a C-shaped profile and endowed with a small vertical wall (38) positioned centrally and in a perpendicular fashion, followed by a divider (31a) composed of a horizontal section in an L shape positioned partly on the side of C and partly on the wall, and a series of consecutive dividers with a conformation that envisages a first horizontal section (32) which is positioned on the side of the C, like the divider (31a), a second diagonal section (33) positioned upwards and a third section (34) which is horizontal again and positioned on the other side of the symmetrical C and parallel to the divider (31a), with a last divider (31d) which envisages a first horizontal section (32) positioned on the side of the C, like the divider (31a) and a second diagonal section (33) positioned upwards.
7. A heat exchanger according to claim 6, characterised by the fact that in each half-part (3a and 3b) all the dividers are arranged in a reciprocally parallel fashion and are spaced apart at slightly decreasing intervals in an upwards fashion.
8. A heat exchanger according to claim 6, characterised by the fact that, at the free end of each divider of each half-part (3a and 3b) of the casing, there is a projection (35) envisaged to fit into a groove (27) present on the outer wall of the U-shaped element of the exchanging body (2) so as to create a route along which the water is forced to flow, the conformation of which initially features parallel levels which make the water flow up on the side of the C to the top level and the water runs along a trajectory that is parallel in each half-part of the casing and which meets on each side of the casing, and then continues flowing up to the upper levels so as to bring water from the bottom upwards.
9. A heat exchanger according to claim 2, characterised by the fact that the half-part (3b) of the casing has two connectors on the side of the C, one being a lower one (40) via which the cold water enters, and the other an upper one (41) via which the hot water flows out.
10. A heat exchanger according to claim 2, characterised by the fact that, at the bottom of the U-shaped element, there is an element (25) that creates a seat and a space to collect the condensation produced in the inner seat where the fumes pass, the said element being triangular-shaped and comprising a condensation discharge pipe (25a) and an opening (25b) for the discharge of the exhausted fumes that have passed within the two half-shells.
11. A heat exchanger according to claim 1, characterised by the fact that the said exchanger is preferably made of aluminium or special aluminium alloys so as to resist corrosion, to have high thermal conductivity and be die-castable, the said alloys being of the low-melting type and requiring less energy to melt.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A data insertion device comprising:
an input device which inputs image data including a plurality of types of pictures;
a determining device which determines the type of the picture for each picture; and
an inserting device which inserts pattern data into each picture with an insertion intensity according to the type determined about the corresponding picture.
2. The data insertion device of claim 1, wherein the inserting device modifies the pattern data to have the insertion intensity and inserts the modified pattern data into the picture.
3. The data insertion device of claim 2, wherein the modification is done by multiplying the pattern data by a multiplier rate which is adjusted according to the determined type.
4. The data insertion device of claim 1, wherein a group of pattern data are prepared each of which are generated so as to have the insertion intensity according to one of the types of the pictures, and the inserting device selects one of the group of pattern data and inserts them into the corresponding picture.
5. The data insertion device of claim 1, wherein the pattern data includes information related to digital watermarking.
6. The data insertion device of claim 1, wherein the image data are MPEG2 data, and the types of pictures includes I picture, P picture, and B picture.
7. A method of inserting data, comprising the steps of:
inputting image data including a plurality of types of pictures;
determining the type of the picture for each picture; and
inserting pattern data into each picture with an insertion intensity according to the type determined about the corresponding picture.
8. The method of claim 7, wherein the inserting step modifies the pattern data to have the insertion intensity and inserts the modified pattern data into the picture.
9. The method of claim 8, wherein the modification is done by multiplying the pattern data by a multiplier rate which is adjusted according to the determined type.
10. The method of claim 7, wherein a group of pattern data are prepared each of which are generated so as to have the insertion intensity according to one of the types of the pictures, and the inserting step selects one of the group of pattern data and inserts them into the corresponding picture.
11. The method of claim 7, wherein the pattern data includes information related to digital watermarking.
12. The method of claim 7, wherein the image data are MPEG2 data, and the types of pictures includes I picture, P picture, and B picture.
13. A recording medium readable by a computer, tangibly embodying a program of instructions executable by the computer to perform a method of inserting data, the method comprising the steps of:
inputting image data including a plurality of types of pictures;
determining the type of the picture for each picture; and
inserting pattern data into each picture with an insertion intensity according to the type determined about the corresponding picture.
14. A computer data signal embodied in a carrier wave and representing a sequence of instructions which, when executed by a processor, cause the processor to perform a method of inserting data, the method comprising the steps
inputting image data including a plurality of types of pictures;
determining the type of the picture for each picture; and
inserting pattern data into each picture with an insertion intensity according to the type determined about the corresponding picture.
15. A program product comprising, computer readable instructions and a recording medium bearing the computer readable instructions, the instructions being adaptable to enable a computer to perform a method of inserting data, the method comprising the steps of:
inputting image data including a plurality of types of pictures;
determining the type of the picture for each picture; and
inserting pattern data into each picture with an insertion intensity according to the type determined about the corresponding picture.