US1815240A

US1815240A - Internal combustion engine cooling system

Info

Publication number: US1815240A
Application number: US246274A
Authority: US
Inventors: Clegg William Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-01-12
Filing date: 1928-01-12
Publication date: 1931-07-21
Anticipated expiration: 1948-07-21

Description

July 21, 1931. w. H. CLEGG 1,815,240

INTERNAL COMBUSTION ENGINE COOLING SYSTEM Filed Jan. 12, 1928 ATTORNEY Patented July 21 1931 UNETED STATES WILLIAM HENRY CLEGG, OF PHILADELPHIA, PENNSYLVANIA INTERNAL COMBUSTION ENGINE COOLING SYSTEM Application filed January 12, 1928. Serial No. 246,274.

This invention relates to means for cooling an internal combustion engine independently of external atmospheric conditions, and to maintain the motor at an operating temperature to insure maximum efliciency under all, circumstances.

In carrying out my invention I comprehend the use of a volatile cooling agent normally contained in a supply tank or reservoir, and automatically admitted to the engine jacket of the engine when the temperature of the latter rises to a degree to warrant cooling ofv the same, the cooling agent circulating through the engine .jacket to accomplish this 5 end, and finally circulating through a tubular I system arranged exteriorly of the motor and in which the cooling agent is condensed and subsequently returned to the reservoir.

In accordance with the present invention I preferably employ a thermostatically actu-' through which the partially liquor vapor passes and is condensed prior to its return to the supply reservoir.

Another-important object of the invention resides in the use of a compressor appropriately located in the tubular system between the condenser and reservoir, and which compressor operates to maintain a proper pressure of the cooling agent through the system. 1

Other objects and advantages will appear from the following detail description when read in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawings forming part of this application like numerals of reference indicate similar parts in the several views and wherem:

Figure 1 is a View partly in section showing how the invention is associated with the engine jacket of an internal combustion engme.

Figure 2 is a view taken at a right angle to Figure 1 showing the condenser.

Referring to the drawings in detail 10 represents the usual jacket of an internal combustion engine, while projecting forwardly therefrom is a supporting bar 11 from which depends a similar bar 12. A fan 13 is supported at the forward end of the bar 11 and is operated from the motor driven shaft 14 through the instrumentality of an endless belt 15 passing over suitable pulleys clearly illustrated in the drawings.

The apparatus forming the subject matter of the present invention includes what is termed a. tubular system through which a volatile cooling agent is adapted to circulate, the

parallel branches

16 and 17 of said system communicating with the engine jacket 10 as illustrated. This system is constructed of tubing of any desired diameter, and the

branches

16 and 17 are connected by a coil 18 constituting a condenser, the coil being arranged directly in advance of the fan 13. A supply tank or reservoir 19 is located immediately in advance of the engine and has its lower end opening into the adjacent branch 16 of the tubular system. This reservoir is adapted to contain a volatile cooling agent which is conveyed into the jacket 10- of the engine through the outlet end of the branch 16 of said tubular system, this outlet end being restricted to admit the cooling agent into the engine jacket in the form of a spray and allow the agent to immediately expand. The admission of the cooling agent from the reservoir 19 into the jacket 10 is automatically controlled, and regulated by the temperature of the motor.

For this purpose I employ a valve 20 which controls communication between the reservoir 19 and the jacket 10, the valve being actuated by a thermostat 21. Thevalve is normally closed, and when the temperature of the motor rises to an extent to necessitate cooling of the latter, the thermostat 21 functions to automatically open the valve 20 and thus allow a quantity of the cooling agent to Hill system passing from the branch 17 through the coil 18, and as the latter is arranged directly in advance of the fan 13, the coil serves as a condenser,- the cooling agent 'finally passing from the coil 18 into the branch 16.

As clearly illustrated in the drawings I con-- template the use of a compressor located at a point between the condenser coil 18 and the reservoir 19, the cylinder of said compressor being indicated at 23 and the piston therefor at 24. The piston is actuated by a cam 25 from the motor operated shaft 14, and communication between the branch 16 and the compressor on the side of the condenser is controlled by a valve 26. The compressor operates to maintain a proper pressure through the tubular system, it being readily apparent that it draws the cooling agent from the condenser coil 18 into. the cylinder 23 in which the cooling agent is compressed and subsequently forced into a the reservoir 19 pressure. A valve 27 controls the communication between the compressor 23 and the reservoir 19. In this manner the vapor is condensed and the reservoir 19 again supplied with a cooling volatile liquid for further use. Rising from the reservoir 19 is a pipe 28 whic pens into the branch 17 of the tubular s stem, and in which pipe is arranged a suitable valve 29, the latter opening at a predetermined pressure within the reservoir to permit an excess of liquid to flow or pass into the tubular system. By reason of the construction and contemplated operation hereinabove described, it is manifest that I have devised a means for cooling an internal combustion engine or the like in a manner to prevent overheating of the motor, and to insure a proper working temperature of the same to permit maximum efficiency.

While it is believed that from the foregoing description the nature and advantages of the invention will be readily understood, I desire to have it known that I do not limit myself to what is herein illustrated and described, and that such changes may be resorted to when desired as fall within the scope of what is claimed.

What is claimed is:

1. An apparatus for cooling an internal combustion engine, including a pair of spaced upper and lower parallel pipes connected with the jacket of the engine, a vertically disposed meservoir supported between said pipes and adapted to contain a volatile cooling agent, a thermostatically operated valve connecting one side of the reservoir with the jacket and controlling the admission of the cooli ng agent from the reservoir into said jacket,'a condenser supported by and commu'nicating with the forward ends of said pipes, and through which the cooling agent passes as it circulates from the acket on its return to the reservoir, a compressor arranged in the length of the lowermost pipe and supported by the other side of the reservoir, whereby the cooling agent is drawn from the condenser and transferred back to the reservoir, a valve controlling communication between the condenser and compressor, a vertical pipe establishing communication between the upper end of the reservoir and the other of said parallel pipes to take care of excess pressure within the reservoir, and a valve controlling communication between the upper end of the reservoir and the last mentioned parallel pipe.

2. An apparatus for cooling an internal combustion engine comprising a pair of spaced upper and lower parallel pipes terminally connected with the jacket of the engine at spaced points, a vertically disposed coil having horizontally arranged convolutions connecting the corresponding forward extremities of said pipes and constituting a condenser, a reservoir supported between said pipes and communicating therewith from the opposite ends thereof, and adapted to contain a volatile cooling agent, a thermostatically operated valve arranged at one side of the reservoir and controlling the admission of the cooling agent from the latter into said "jacket, a compressor located at the opposite side of the reservoir and establishing communication therebetween and the lowermost of said parallel pipes, a valve controlling communication between the pipe and said compressor, a valve controlling communication between the compressor and saidreservoir, and a vertically disposed pipe rising from the upper end of the reservoir and having valve controlled communication with said uppermost parallel pipe to take care of excess pressurewithin the reservoir.

' WILLIAM HENRY CLEGGM local