US2087613A

US2087613A - Heating system

Info

Publication number: US2087613A
Application number: US669410A
Authority: US
Inventors: Claude G Bordeaux
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-04
Filing date: 1933-05-04
Publication date: 1937-07-20
Anticipated expiration: 1954-07-20

Description

July 1937, c. G; BORDEAUX HEATING SYSTEM Filed May 4, 1933 ,4 7' Tak/vs Ys Patented July 20, 1937 UNITED STATES PATENT @FFME Claude G. Bordeaux, Albany, N. Y. Application May 4, 1933, Serial No. 669,410

2 Claims.

My invention more particularly relates to a vapor heating system which is particularly applicable to Vehicles propelled by internal combustion engines, although it is not limited thereto.

The general objects of my invention are to provide a vapor heating system which is simple and compact and which has a quick and effective heat radiation as compared with systems installed in the circulating system connected with the radiator and with the cylinder jacket which have hitherto been proposed.

Another object of my invention is the provision of an unobstructed circulating system including a steam generator and a radiator operating at a predetermined pressure with associated means for introducing water into the system and maintaining a substantially constant quantity.

Other objects of my invention Will appear in the specification and will be particularly pointed out in the claims.

My invention will best be understood by reference to the accompanying drawing in which* Fig. 1 is a side elevation of a device embodying my invention;

Fig. 2 is a perspective View or the vapor generator;

Fig. 3 is a longitudinal sectional View of a check valve;

Fig. 4 is a sectional view illustrating a valve located in the by-pass around said check valve. and

Fig. 5 is a View similar to Fig. 4 illustrating a modied form in the by-pass.

Like reference characters indicate like parts throughout the drawing.

Referring to the drawing I8 is aninternal combustion engine of a vehicle in connection with which I have illustrated my invention. A radiator il is connected to the Water jacket of the engine by suitable connections l2 and i3. .An exhaust pipe i4 leads from the engine in the usual manner. Y

A circulating system indicated generally at l5 comprises a vapor generator indicated generally at I6 and a radiator il which may be if desired the ordinary hot water radiator that has commonly been used on vehicles. The vapor generator is preferably formed with a loop |8 which is located in the exhaust pipe I4, the ends |8| and |82 preferably being threaded as illustrated and each provided with a flange lil.Y The bent ends |8| and |82 of the pip-e forming the generator pass through openings 2li in the exhaust pipe as best shown in Fig. 2, a union 2| connecting one end |8| of the generator to a pipe 22 which passes through a wall 23 of the body of the car and connects to the radiator Il. The return of the circulating system comprises the pipe 24, leading from the radiator l1 to an enlargement 28 in the pipe 25 which connects said er1-y largement to the other end |82 of the generator pipe. preferably used to connect the pipe 25 to the end |82 of the generator.

Liquid is supplied to the circulating system through a pipe 26 which may be connected at any suitable point to the water cooling system of the motor. In the embodiment illustrated, the pipe 26 is connected at 2l to the water jacket Which forms a part of the Water circulating system of the motor.k nicates with the circulating system l5.

A check valve 38 is located in the pipe 26. A by-pass indicated generally at 39 is connected to the pipe 26 on opposite sides of said check valve A pipe connection 34 (Fig. 4) is threaded into the casing 3H of the pop valve 3| and the inner end thereof provides a seat for a Valve member 35 which is preferably generally cylindrical in form, but provided at its side with longitudinally extending grooves 36. The valve member 35 is normally depressed against the nipple connection 3i by a spring 37 which is designed to be oompressedwhen a predetermined pressure, for example, ten pounds, has been ex- A union similar to that above described is Y The other end of the pipe commupipes, vapor generator and radiator included in my heating system. Obviously, water cannot entirely lill the heating system due to the fact that no outlet is provi-ded therein for air, hence the air which is trapped therein will prevent the same from becoming entirely iiooded. When the motor is initially started, waste gases or exhaust gases will be conducted from the cylinders of the motor through the exhaust manifold i4 and around the vapor generator i6. 'Ihe generator, being preferably formed from a material having the characteristics of resistance to corrosion from the exhaust gases and high heat conductivity, will transfer the heat from the exhaust gases to the water therein.

' When the motor is started, the pump which circulates liquid through the radiator of the vehicle and the Water jacket surrounding' thel circulating system being prevented for reasons that have already been presented. The pressure which is created in the water block is practically instantaneous whereas it requires an appreciable time to bring the generator up to a temperature suliiciently high to cause vaporizaton of the water therein to take place. When the generator vaporizes the liquid therein, a pressure is created in the circulating system and when it reaches ten pounds, the by-pass valve 3| opens thereby permitting fluid from the circulating system of the heater to be forced through the pipe connection 26 into the water jacket, since the pressure therein is below that at which the valve 3l opens. The circulating system is thereby relieved of the excess amount of liquid therein and of the excess pressure. -As soon as the pressure in the circulating system falls below ten pounds, the by-pass valve 3i is closed.

It will be understood that when the vehicle on which the heating system is installed stops, the exhaust gases no longer pass over the .generator, and when the vehicle stops for any appreciable time, the generator cools and when the car is again started liquid is again forced into the circulating system and the cycle of operation above described is repeated.

The valve 38 is thus used only as an emergency valve for the purpose of relieving the circulating system of excess pressure when the sam-e is ooded with liquid as nearly as it may be and the water in the generator heated thereby creating an excess pressure therein. Under normal operating condition the vehicle may run for an entire trip or for an entire day without the valve 38 being operated, the valve 3l being operated only at the time of, starting the vehicle and possibly after the motor has been idling.

The system embodying my invention thus provides a single connection only from the water jacket to the circulating system. It will be evident that my heating system comprising only the one pipe connection leading from the water jacket of the circulating system of the vehicle to the circulating system of the heater is simple and inexpensive as compared with a system comprising two such connections and is more ehi-cient as the liquid is not returned to the water jacket under normal operating conditions as is necessarily the case when the circulating system of the vehicle is included as a part of the heating circulating system. Furthermore, the pressure and therefore the temperature is maintained substantially constant under normal operating conditions thus delivering a substantially constant amount of heat to the vehicle. Furthermore, the system embodying my invention is comparatively simple and compact.

I have illustrated in Fig. 5 a modiiied form of valve Sla for the by-pass. In the form of valve there illustrated, the valve member 35a is in the form of a plain cylindrical member having a close t in the valve casing 3l la. The outlet pipe Sila for the by-pass is connected to a port 30h which is normally covered by the valve member a which is biased to the closed position by the spring 3l as in Fig. 4. In moving over the walls or. the cylinder, any dirt or other foreign matter is automatically removed from the walls thereof thereby eliminating the possibility of its interfering with the operation of the valve. Furthermore, any grease or oily substance which may find its way into the water, forms a seal between the valve member 35a and the walls of the casing 3l la.

It is to be understood that the control means which I employ will continuously operate while my heating system is in use. Furthermore, the means which I employ to regulate the admission of water to the heating system and the release of steam therefrom maintain the heating system and the water cooling system of the motor as separate systems, the two being entirely operable in a functional sense independently of eachother. The water cooling system is utilized merely as a source of water supply and as a ycondenser for the excessive steam developed in the heating system. Furthermore, it is to be understood that the heating system is so designed that the excessive steam generated therein and which is exhausted through the water coolingsystem is negligible as a heating factor of the motor cooling system.

A few of the evident advantages of my invention reside in the fact that it may be easily and quickly installed, requires a negligible amount of liquid, and may be used with hot water radiators of installed systems.

While I have referred to water as the liquid medium employed, I do not limit myself thereto, but may use any fluid which may be suitably used in a motor cooling system and which may be vaporized in a vapor heating system.

While I have described my invention in its preferred embodiments, it is to be understood that the words which I have used are words of description rather than of limitation and that changes within the purview of the appended claims may be made without departing from the true scope and spirit of my invention in its broader aspects.

What I claim is:

l. In a vapor generating and heating system, a source of liquid supply normally under pressure during normal operating conditions, an unobstructed closed circulating system in which the liquid circulates independently of said source or liquid supply and including a vapor generator and a vapor radiator, means providing a single passage between said source of liquid supply and said circulating system, a check valve located in said passage opening toward said circulating system, and a by-pass around said check valve and including a normally closed valve operable to open position in response to a predetermined pressure in said circulating system.

2. In a heating system, a closed circulating system including a vapor generator and a vapor radiator with means providing communication between the two, a source of liquid supply under a pressure which may be higher than that in said circulating system under certain conditions of operation, means dening a passage communicating with said source of, liquid supply and with said system, a check valve located in said passage for normally preventingV the return of fluid from said system to said passage, a by-pass around said check valve, a valve located in said by-pass, and yielding means for normally retaining said Valve closed and operable to an open position in response to a pressure in excess of a predetermined pressure in said system.

CLAUDE G. BORDEAUX.