US1826169A - Heating system for automobiles and coupling therefor - Google Patents

Description

Oct. 6, 1931. 1,826,169

HEATING SYSTEM FOR AUTOMOBILES AND COUPLING THEREFOR J. S. DOUGLASS, JR

Filed Sept. 24, 1928 2 Sheets-Sheei [LL l/l md m "U! I I m e a m Oct. 6, 1931.

HEATING SYSTEM FOR AUTOMOBILES AND COUPLING THEREFOR Filed Sept. 24, 1928 2 Sheets-Sheei 2 Llox 4 5O Inventor T/ames 5, 00 ug /oss,r n k I tomey J. s. DOUGLASS, JR 1,826,169

Patented. Oct. 6, 1931 JAMES S. DOUGLASS, JR., OE CANANDAIGUA. NEW YORK irna'rine SYSTEM. r012. AUTOMOBILES AND oournme TfiEREFOR Application filed September 24, 1928. Serial No. 307,802.

This invention relates to steam heating system in which the waste heat from the exhaust gases of the internal combustion engine in combination with water from the cooling system of the engine is utilized to generate superheated steam which then passed through suitable radiators to heat the inside of the automobile and the object of this invention is to reduce such a heating 10 system to its simplest form in which it will operate efficiently.

Another object of the invention is to provide attachments by which the connections between the steam heating devices and the l exhaust pipe on the engine of the automobile can be easily and cheaply made.

These and other objects of the invention will be fully illustrated in the drawings described in the specification and pointed out in the claims at the end thereof.

In the drawings:

Figure 1 is a diagrammatic side elevation of a portion of an automobile illustrating the application of my steam heating system thereto.

Figure 2 is an enlarged longitudinal sectional view of the steam generator of my heating system and the connections by which it is mounted in the exhaust pipe of the engine.

Figure 3 is a. vertical section on the line 3%, 3w oPFigui-e 2.

Figure 4 is a top plan view of F gure 2. Figure 5 is a bottom plan view of Figure 2. Figure .6 is a top plan view of a modification of Figure 2 showing one inlet watertube and two outlet steam tubes, each of which is adapted to feed a separate radiator. Figure 7 is a vertical longitudinal section corresponding to Figure 2 showing a modified form of one of the steam tubes.

Figure 8 is a transverse section on the line 800, 8a; of Figure 7 Figure 9 is a vertical longitudinal section corresponding to Fig. 2 showing one inlet water tube and four outlet steam tubes.

Figure 10 is a vertical section on the line 9411, 9a: of Figure 9. In the drawings indicate like parts.

like reference numerals The heating system forming the subiect matter of this invention takes water from the water circulating system of the car,

changes it into superheated steam by using the heat of the exhaust gases of the automobile engine of the car. This superheated steam is then passed through one or more radiators in the car for the purpose of heating the car.

densed into water by the radiators and this water is then returned to the circulating system from the car.

of the car so that no water is lost The water is thus used over and over again both for cooling the engine and for heating the car and it is used w waste.

ithout As shown in Figure 1, Water is drawn by art of the pipe 1 from the pipe 2 which is p the water circulating system of the car. Water is forced into the pipe 2 under sure by car. The pipe 1 The presthe water circulating pump of the first leads up to the dash where it connects with a valve 1A which con- This valve is preferably a needle valve. By opentrols the flow of water through it.

ing this valve aslight amount, only a small amount of water. will pass and this will make heated. Tithe valve is open wide a superheated steam by which the car will be large amount of water will pass which will be heated and will pass through the radiator not as steam but as water to heat the car.

From this valve 1A the water flows through the pipe down 1. The heater described herein is either a steam or hot water heater depending on the setting of the valve the dash. One side of the U 3 is mounted in the exhaust ma of the engine,

1A on shaped tube nifold where it is subjected to a high temperature of the exhaust gases of the engine. 3 is connected to a pipe l'which leads The other side of the U shaped tube to one or more radiators in the car, to which radiators superheated steam is supplied for the purpose of heating the car.

The U shaped tube 3 is mounted in the saddle block 5 shown in Figure 2.

The exhaust pipe is provided with a large hole or opening 6 therein and is big enough to permit the insertion of the U shape d tube The superheated steam is con- 3. Between the block 5 and the exhaust. pipe 7 a strip of asbestos or other suitable packing material 8 is provided by which the joint between the block 5 and the opening in the exhaust pipe 7 may be securely sealed. A washer 9 is plaeed'on the pipes 1 and 4. The cap 10 makes threaded engagement with the block 5 and screws down on it carrying the washer 9 with it. The pipes 1 and 4 are connected to the ends of the U by enlarged joints and these joints are clamped between the washer 9 and block 5. thus securely holding the pipes in place.

The block 5 is provided on each side with the extensions 11. 12. 13 and 14 which form an integral part therewith and are used for 'the purpose of clamping the block to the exhaust pipe as will now he described.

Passing under the exhaust pipe is the strap 15 which mav be made in one piece but is preferahlv made in 2 pieces to provide for adjustment. If the strap were made in one piece, straps of different lengths would have to he used to fit different sizes of exhaust pipes. The ends of this strap are provided with the studs 16 and 17 which pass through the slots 18 and 19 that are formed between the extensions 11 and 12 on one side and extensions 13 and 14 on the other side. The nuts 20 and 21 are provided on the studs 16 and 17 by Which the studs and the strap mav be drawn up against the lower side of the pipe and the block 5 may be drawn down on the top of the pipe thus securelv closing the opening 6 in the pipe. Instead of making the strap 15 all in one piece I preferahlv make it in two pieces as shown in side elevation in Figure 3 and as shown in bottom plan view as shown in Figure 5. The part 15A is provided with a narrow tongue 22 which engages in one or the other of the series of slots 23 formed in the part 15B. 13v setting this tongue 22 in the slot forward or back and bending the tongue over, the strap can be lengthened or shortened as may he desired and the two parts thereof may he securely fastened together. When the two parts are thus fastened the strap is put in place as shown in Fig. 3. the nuts may he turned drawing the strap and the block securely against the pipe and holding the pipes 1. 4 and the tube 3 firmlv in place with relation to the exhaust pipe of the engine.

Washers 24: and 25 are placed under the nut 20 and 21 as are shown in Figure 3.

As I have shown in Figures 2. 3 and 4 a single U sha'ped tube is used therein and this pipe works very well for the purpose of heating a single radiator. but if this tube is connected up to supply steam to two radiators so that the steam is divided between them. it has been found in practice that one radiator will get more steam than the other and that the different parts of the car will be unequally heated.

To overcome this objection I provide in the exhaust manifold a single inlet water tube 30 and two outlet steam tubes 31 and 32 as shown in Figure 6. In such case the tubes 30, 31 and 32 are all connected to a thimble 33 into which all the tubes open with the tube 30 between the tubes 31 and 32. The water and steam will flow equally from-the inlet tube 30 to the outlet tubes 31 and 32.

In Figures 7 and 8 I have shown the same kind of connection in which the U shaped tube is made of a flat tube having a rectangular cross section, it having been found that the tube can be bent upon itself and made more compact by installing it in this way. If desired a large tube of rectangular section can be used such as indicated at 34 and a partition 35 can be run down through the tube. The lower end of the tube will be closed with a cap. The water will pass down one side of the partition 35 and the steam will pass up on the other side of the partition.

In Figure 9 I have shown one inlet water tube and four outlet steam tubes, the inlet water tube being the central tube as is indicated by the reference numeral 40 and the outlet tubes 41 are arranged around it so as to receive steam therefrom equally. In this case five tubes would be used as shown in the cross section of Figure 10.

In some cases the end of the heating tube will vibrate in the exhaust pipe and is therefore apt to make a noise. To prevent this the exhaust pipe 7 is perforated with a suitable hole and a hook 50 is passed into the hole and engaged with the heating tube. The lower end of the hook is threaded and a nut 51 is screwed up thereon to pull the hook and tube down into engagement with the pipe and hold it there.

I claim:

1. A coupling for a heating system comprising an exhaust pipe having a large hole therein, an aperturedblock adapted to cover said hole. fork extensions on each side of said block having an opening between them, a strap adapted to pass under the pipe opposite to said hole, said strap having a stud on each end thereof, nuts engaging with said stud by which-the block and strap are drawn close against the exhaust pipe, the block closing the large opening in the pipe two open ings in said block, a U shaped pipe extending through said openings, packing material on top of said block surrounding said U shaped pipe. a washer having two holes in it on top of said packing material, a ring cap threaded to said block and adapted to squeeze the packing material between the washer and the block and seal the joint between the block and the U shaped pipe.

2. A coupling for a heating system comprising an exhaust pipe having a large hole therein, an apertured block adapted to cover said hole, fork extensions on each side of said block having an opening between them,

a strap adapted to pass under the'pipe opposite to said hole, said strap having a stud on each end thereof, nuts engaging with said stud by which the block and strap are drawn close against the exhaust pipe, the block closing the large opening in the pipe, a water tube and steam tube passing through said .block and making close engagement therewith, said tubes extending into and lengthwise of the exhaust pipe and being connected together in the exhaust pipe so that water flows into said tubes on one side and steam flows out of the tube on the other side.

3. A coupling for a heating system comprising an exhaust pipe having a large hole therein, a block adapted to cover said hole, fork extensions on each side of said block having an opening between them, a strap adapted to pass under the pipe opposite to said hole, said strap having a stud on each end thereof, nuts engaging with said stud by which the block and strap are drawn close against the exhaust pipe, the block closing the large opening in the pipe, said strap being made in two parts one part of the strap being finished on its end with a narrow tongue and the other part of the strap having a plurality of openings therein, said tongue being adapted to pass through any one of said openings and being adapted to be bent over to lock the two parts of the strap together.

4. The combination of an exhaust pipe having a hole therein, a tube passing into said pipe through said hole and being bent on it-- self inside of the pipe and passing out again from said pipe through said same hole, a clamp adapted to hold the ingoing and outcoming ends of said tube in said hole and close the hole between the tube and the pipe, the ends of the tube being exposed outside of the pipe for the purpose of making conneotions therewith.

5. The combination of an exhaust pipe having a hole in the side thereof, a tube passing into said pipe and out again through said hole, said tube having a U-shaped portion Within the pipe extending substantially parallel to the axis of the pipe, the free ends of said tube being bent at right angles to the U-shaped portion, both of said free ends passing out of said pipe through said hole,

a clamp adapted to hold the free ends of said hole and close the hole between the free ends of the tube and the pipe, connections outside of said pipe with the free ends of said tube whereby liquid may be circulated through said tube and be heated by the exhaust gases.

In testimony whereof I afiix my si nature.

JAMES s. noUoLAss, JR.

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