Improved thermal efficiency radiator for bath rooms and the like

Abstract: A pair of upright manifolds (2) are coupled to one another by a plurality of horizontal pipes (10) having, at the coupling ends thereof, a cut slanted with respect to the pipe axis. A portion of the above pipes (10), arranged at the bottom, have the longer end portions thereof downward turned, whereas the pipe portions arranged at the top have the longer end portions upward turned.

Description: The present invention relates to an improved thermal efficiency radiator for bath rooms and the like. Bath room radiators are already known comprising a pair of upright manifolds therebetween a plurality of horizontal pipes extend, said pipes being arranged in several pipe beams. In such an arrangement, the horizontal pipes are provided, at end portions thereof, with a rectilinear cut, that is a cut extending orthogonally to the pipe axis. More specifically, during the assembling operation, these pipes are coupled with their ends flush with the uprights, by means of welding or other like operations. Accordingly, great difficulties are encountered in the assembling procedure with respect to the obtaining of a satisfactory distribution of the primary heating fluid, with a consequent reduction of the thermal exchange toward the environment. Moreover, with the above disclosed arrangement, one has to solve complex constructional problems, which negatively affects the building cost. The document FR-A-1 350 811 discloses a thermal radiator having substantially the features of the preamble of the main claim. SUMMARY OF THE INVENTION According, the aim of the present invention is to overcome the above mentioned drawbacks, by providing an improved thermal efficiency radiator for bath rooms and the like, which is adapted to provide an optimum thermal exchange, mainly at the top portion of the radiator, thereby also providing an increased thermal efficiency. Within the scope of the above mentioned aim, a main object of the present invention is to provide such a radiator which is very simple construction-wise and can be series produced by conventional apparatus and systems. Yet another object of the present invention is to provide such an improved thermal efficiency radiator which is very safe and reliable in operation. Yet another object of the present invention is to provide such a radiator which can be quickly and easily constructed starting from easily available materials and elements and which, moreover, is very competitive from a mere economic standpoint. According to one aspect of the present invention, the above mentioned aim and objects, as well as yet other objects, which will become more apparent hereinafter, are achieved by a thermal radiator for bath rooms and the like, having the features of the characterizing part of the main Claim. BRIEF DESCRIPTION OF THE DRAWINGS Further characteristics and advantages of the present invention will become more apparent from the following detailed disclosure of a preferred, though not exclusive, embodiment of an improved thermal efficiency radiator, for bath rooms and the like, which is illustrated by way of an indicative but not limitative example, in the accompanying drawings, where: Figures 1 is a schematic partially cross-sectioned front view illustrating a radiator provided with two pipe beams; Figure 2 illustrates a radiator including three pipe beams; Figures 3 is a top plan view illustrating the subject radiator; Figures 4 is a cross-sectional view taken along the section line IV-IV of Figure 3; Figure 5 is another cross-sectional view, taken along the section line V-V of Figure 4; Figure 6 illustrates a further cross-sectional view, taken along the section line VI-VI of Figure 1; Figure 7 shows a further cross-section view, taken along the section line VII-VII of Figure 6; Figure 8 is a detail view showing, on an enlarged scale, the detail indicated at A in Figure 1; and Figure 9 shows a further cross-section view, taken along the section line IX-IX of Figure 8. DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to the figures of the accompanying drawings, the improved thermal radiator, for bath rooms and the like, according to the invention, and which has been overally indicated at the reference number 1, comprises a pair of upright manifolds 2 which, advantageously, have a substantially circular shape and are provided with bottom and top lead-in portions 3 and 4 as well as with a side lead-in portion 5. More specifically, these lead-in portions are made of threaded ring nuts, provided for coupling with closure plugs or fitting elements for the heating sources. The uprights 2 are coupled to one another by means of a plurality of horizontal pipes, overally indicated at the reference number 10, which have the main feature of being provided, at the ends thereof which are coupled to the upright manifolds 2, with a cut slanted with respect to the pipe axis. More specifically, the ends of the horizontal pipes 10 are made with a cut slanted at about 10° with respect to the pipe axis, so that each end portion will be provided with a longer part and a smaller part. In this connection, it should be apparent that the radiators 1 can be made starting from a plurality of pipe beams, that is a plurality of horizontal pipes 10; in the embodiment shown in figure 1, there is provided a radiator having two pipe beams; here, the pipes of the bottom pipe beam, indicated at 20, have the longer ends thereof upward turned. If a radiator is made starting from three pipe beams, as is shown in figure 2, then the bottom pipe beam 20, as well as the top pipe beam 21, will have the above disclosed arrangement, whereas the middle pipe beam, indicated at 22, will have its longer end turned toward the main faces, that is turned through 90° with respect to the end portions of the bottom and top pipe beams. If a radiator is made starting from four pipe beams, then the fourth pipe beam, arranged at the top end of the radiator, will have the longer end thereof upward facing. The slanted cut ends of the horizontal pipes 10 are engaged, for a given length, within the upright manifolds 2 and, preferably, these pipes are introduced in the manifolds for a length of 5-10 mm. Thus, the welding operations will be greatly simplified and any possible leakages will be prevented from occurring. With the disclosed arrangement, the main operating portion of the radiators, that is the bottom portion thereof, will be subjected to a turbulent thermal exchange of the primary fluid, provided, in the arrangement being disclosed, by the larger length ends of the horizontal pipes, which will practically increase the flow rate of the thermal exchage primary fluid in the upward direction. Then, an improved thermal exchange will be obtained also due to the fact that, in the top pipe beams,it will be possible to proportionately increase the flow of the primary fluid with a consequent great increase of the thermal efficiency. Another main aspect of the present invention is that the above disclosed arrangement affords the possibility of making the radiators in a large series without any increase of the production cost, and provided, a very safe and reliable product. From the above disclosure it should be apparent that the invention fully achieves the intended aim and objects. In particular, it is to be pointed out that the provision, at the end portions of the horizontal pipes, of a cut slanted with respect to the axis of said pipes provides the possibility of adjusting at will the distribution of the flow, so as to obtain a very even primary fluid flow with a consequent great increase of the thermal efficiency. In practicing the invention, the used materials, as well as the contingent sizes and shapes can be any, according to requirements.

Claims: A thermal radiator for bath rooms and the like, comprising a pair of parallel manifolds (2) at the ends of which are arranged lead-in portions (3, 4, 5) for connection with a source of working fluid, the manifolds being coupled to one another by a plurality of pipes perpendicularly arranged to the manifolds, characterized in that the pipes are cut at their ends with a given angle with respect to their axis such that the pipes comprise a long portion and a short portion opposite to each other, the ends of each pipe are inserted into the manifolds such that the long portion of each pipe protrudes into the manifolds, and the pipes of two pipe rows, each of the rows being arranged next to one end of the manifolds, have their long portions facing the outside of the radiator in the axial direction of the manifolds. A thermal radiator according to Claim 1, characterized in that the end portions of said pipes are slanted at about 10° with respect to a plane perpendicular to the axes of said pipes. A thermal radiator according to one or more of the preceding claims, characterized in that said end portions of said pipes are introduced into said manifolds for a length from 5 to 10 mm. A thermal radiator according to one or more of the preceding claims, characterized in that said radiator comprises a middle pipe beam, the pipes of which have their longer end portions facing the main faces of the radiator, that is orthogonally to the bottom pipe beam and top pipe beam.

Inventors: TONON GIORGIO LUCHESCO C O TON, TONON, GIORGIO LUCHESCO, TONON, GIORGIO LUCHESCO, C/O TONON S.P.A.
Applicants: TONON SPA, TONON S.P.A.
Application year: 1991
Main classification: F28D1
IPC codes: F28F27, F28D1, F28F9, F28F1