US2825035A

US2825035A - Apparatus for the instantaneous heating of liquids

Info

Publication number: US2825035A
Application number: US580091A
Authority: US
Inventors: Arnaud Henri
Original assignee: Individual
Current assignee: Individual
Priority date: 1956-04-23
Filing date: 1956-04-23
Publication date: 1958-02-25
Anticipated expiration: 1975-02-25

Description

Feb. 25, 1958 ARNAUD 2,825,035

APPARATUS FOR THE INSTANTANEOUS HEATING 0F LIQUIDS Filed April 25, 1956 II III United States Patent APPARATUS FOR THE INSTANTANEOUS HEATING OF LIQUIDS Henri Arnaud, Paris, France Application April 23, 1956, Serial No. 580,091

3 Claims. (Cl. 336-220) This invention relates to apparatus for the instantaneous heating of liquids, particularly fuel oil, in which the tube through which passes the fuel oil to be heated forms the secondary coil of a heating transformer. An apparatus of this kind is described in my prior patent No. 2,616,022, granted October 10, 1952.

It is an object of the invention to provide an apparatus in which this tube can be put in, and removed from, position without it being necessary to take the transformer to pieces.

According to the invention, the tube through which the fiuid passes and which forms the secondary of the heating transformer is coiled in such a manner as to form open loops so that it can be placed in position around the core of the transformer with only a slight deformation and without it being necessary to take the transformer to pieces.

In the accompanying drawings:

Figure 1 is an elevation of a heating transformer pro vided with a secondary coil,

Figure 2 is a perspective view showing the secondary coil alone, and

Figure 3 is a section (to a larger scale) on the line IIIIII of Figure 1.

In the embodiment of the invention illustrated in the drawings, a heating transformer has a core 1 which is mounted on a plate 2, for example, the bottom of a box, by means of gussets 3.

This core carries the primary coil-which is mounted between side plates 4 and is covered by a protective sheath 5 (Figure l). The several connections 6 of the primary which abut the end cap 7 are designed for the connection of the electric current supply leads.

The secondary of the transformer is constituted by a portion of tube 8 through which flows the fuel oil to be heated. This tube 8 has a straight branch 8a which runs along side a lower bar 1a of the core 1 then it is bent into a loop 8b around an upright 1b of the core so as to pass above the lower bar In about the middle of it; the tube 8 is then bent to form an elbow Sc and is then again bent in the form of a second loop 8d around an upright part 10 of the core in order to terminate in a branch 82 which runs along side the lower bar in. As shown in Figure 2 the tube 8 has two open loops 3b and 8d separated by an elbow portion 8c which passes close to the

ends

8a and 8e of the two loops.

The base plate 2 is provided with a support 9 fixed, for example, by means of a screw 9a, for the fixing of the tube 8 by means of a cap 10 which is fitted over the elbow 8c and is held in place by a screw 10a and by means of a stirrup 11 which fits over the

branches

8a and 8e and is fastened by a screw 11a. The support assembly 9 and the cap stirrup and screws which it carries ensures the secondary circuits are closed electrically by the connection of the elbow with the

branches

8a and 8e.

In order to disassemble the tube 8, it is sufiicient to remove the cap 10 and the stirrup 11 and then to take the elbow 80 out of the core of the transformer which can easily be done with only a slight deformation of the tube which is made of a malleable material such as a copper base alloy.

The tube 8 can be put in position by the reverse operation without difficulty.

It is of advantage to provide the elbow branches 80 with protective muffs 12 (Figure 3).

What I claim is:

1. An apparatus for heating liquids comprising in combination a transformer of the closed core type having branches connected together by upright parts; a metallic tube, a portion of which is adapted to constitute the secondary circuit of said transformer, said portion being bent into a pair of open loops partially surrounding each of said upright parts respectively, said loops being separated by an elbow portion passing between said parts and the extremities of said portion passing along one of said branches close to said elbow portion; and means for connecting said extremities with said elbow portion.

2. The combination of claim 1 wherein said means are adapted to secure the tube with respect to the core.

3. The combination of claim 2 wherein said means comprise a support secured to said core and bridging means adapted to secure said elbow portion and said extremities to said support.

References Cited in the file of this patent UNITED STATES PATENTS