US1335391A

US1335391A - Thermal-controlled circulating system

Info

Publication number: US1335391A
Application number: US138808A
Authority: US
Inventors: Charles L Rayfield
Original assignee: Findeisen & Kropf Manufacturing Co
Current assignee: Findeisen & Kropf Manufacturing Co
Priority date: 1916-12-26
Filing date: 1916-12-26
Publication date: 1920-03-30
Anticipated expiration: 1937-03-30

Description

C. L. RAYFIELD.

THERMAL CONTROLLED CIRCULATING ASYSTEM. APPLICATION mw M1225, |916.

lllllllllll Patented Mar. 30, 1920.

i the engine stops,

UNITED sTATEs PATENT OFFICE.

CHARLES L. BAAYFIELD, OF CHICAGO,v ILLINOIS, ASSIGNOB T0 FINDEISEN & KBOPF MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A COBP'OBATION OF ILLI- NOIS.

THERMAL-CONTROLLED CIRCULATING SYSTEM.

Specification of Letters Patent. Patented Mar. 30, 1920.

Application inea December 2e, 191e. serial No. 138,865.

To all Iwhom it may concern:

Be it known that I, CHARLES L. RAYFIELD, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Thermal- Controlled Circulating Systems, of which the followin is a specification.

vMy invention relates to an 'improvement in thermal-controlled circulating systems, particularly for internal combustion engines, and the objects of my improvement are, rst, to provide a construction wherebyto prevent a cooling medium circulating through the radiator of an automobile immediately to conserve the heat in the liquid which surrounds the engine cylinders, and thus obviate heat transferfrom the cooling medium through the radiator to the atmosphere; second, to afford means for the regulation of the degree of heat at which a. thermal element will make voperable additional means for changing the path of travel of the cooling medium; third, the provision of thermal-controlled means to operate a valve to permit'the passage lof a force to actuate the additional means for operating a valve disposed in the path of `travel of the cooling medium which additional means is operable only upon andgafte'r the -cooling medium has reached a predetermined degree of heat and during the continuancedn opera. tion 'of the engine; fourth, the production of suitable parts' to get the temperature of the engine cooling medium up to say` 179 to 180 degrees Fahrenheit` as quickly as possible, and to maintain such temperature as longI as possible after the engine is shut down; fifth,

to produce a structure suitableto automatically supply water vapor or other fluid, af` ter bein-g heated, to the fuel mixturefto prevent pre-ignition and -to minimize carbonization of the motor.

With the above and o ther'objects in view, my invention consists in the novel features, and in the -novel mode of operation, and in the novel. combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings forming a part of this specification, and particularlypointed out in the claims hereunto'appended.

Figure 1 is a side elevationof the front end 'of an automobile with the Working parts assembled.

Fig. 2 is a vertical central section .with the parts shown in normal positions.

Fig. 3 is a sectional detail of a modified form of mounting and operation of the valve in the cooling medium passage.

Like numerals refer to similar parts throughout the several views.

In' the embodiment chosen to exemplify my present inventioh, broadly stated,there is an automobile as-engine of the water cooled type and a ra iator with suitable pipe connections between the radiator andthe liquid passages in the water-jackets of the en `nel cylinders with thermal-controlled va vemechani'sm disposed in the liquid circuit and having a thermallcontrolled member which at 4the predetermined temperature of the cooling medium renders operative a. force to actuate an additional member to' open a. valve normally opposed to the passage of the cooling medium toI or from the radiator. In cases Where it mayflbe desired the so-called additional member? is employed to govern the flow of water vapor or other fluid through properconduit from a source' of liquid supply into a fuel mixing chamber.

, The engine cylinders lFare provided with waterjackets 5, fuel intake manifold 6, carbureter 7, radiator 8, pipe 9, from the lower end of the radiatorto the' p'ump 10, water"- intake pipe 11 from the pnmp 10 to thek water-jacket, 5,

water outletinanifold

1,2, a section of flexible pipe 13, continuing the Water outletfto and connected with a thermal-controlled valve-mechanism in the casing 14. and pipe-15. connecting the casing 14 with theupper end of the radiator 8, and a iexible by-'pas's /pipe 16 connected to the .nipple 2O ofthe device 14 at one vend and attached at itsl opposite end to the pipe 9.

The pipe 17-is connected at the point 18 of the valve mechanism 14, and at 19 with the fue] intake manifold 6.

The casing 14 is composed of upper and `lower portions X, Y, secured together through their externally flanged portions by screws 21 'or other preferredmeans and thel two portions afford suitable housing for the thermal element 22 and the mechanical element 25 contained therein.

lio

The nipple 24 is formed at the intake end and the nipple 25 is formed at the discharge end of the lower portion Y of the casing 14, which, preferably is tubular in form and somewhat enlarged adjacent the position of the thermal element 22. The upper portion X of the casing 14 preferably is cylindrical to conform to the diaphragm or mechanical element 23.

For the performance of mechanical work, I employ what is termed a diaphragm or mechanical element 23 which preferably consists of a number of thin sheets or disks 26, preferably of flexible metal, each disk having an axial Opening 27 therethrough, except the last one, and each disk having its inner edges 25 and outer edges'29 annularly flanged oppositely, and secured to gether at the inner and outer flanged edges, but in a manner free to yield to pressure on one side or the other, particularly to yield to the influence of a partial vacuum or the.d`1 rect expansive force of a fluid under compression, after a slight modification of the f structure herein set forth, for the purpose of utilizing the contraction or expansion of the Aelement 23 to give movement to anything fixed to the last one 30 of theseries of disks, especially to by-pass the cooling medium from the normal course through the radiator wheneven the engine stopped; and, when desired, to overn the flow of water vapor or other fluid to be incorporated with the fuel mixture after such vapor or other fluid hasreached a predetermined degree of heat.

On reference to the drawing, in Fig. 2, it will appear every other air chamber 31 is hermetically sealed, and every other open air space 32 will permit contraction and ex pansion of the hermetically sealed air chambers 31. The stem 33 is fixed at 34 to the outer surface of the disk 30 by solder, brazing or the like, and terminates in a flattened portion 35 to which is pivoted link 36 having its outer end 37 in operative engagement with the bell crank 38 which is carried by the walls of the tubular` the butter fly valve 39, fulcrumed at 40 in ortion Y. A resilient member 41 is attac ed at one end to the arm 42 of the bell crank carried by the valve 39 and at the other end to the post 43 and constantly7 Vurges the valve 39 to closed position. The link 36 is movable in the openin 44.

The ars 45 are provided with bore 46 to receive the plug 47 which has a bore 48 to receive the stem 33. The plug 47 is threaded at its lower end.49 and is made air tight by the employment of nut 50 and gasket 51.

Should the user want to' introduce water 'vapor into the carbureter to be incorporated with the fuel mixture it is only necessary to extend upwardly the plug 47, form an annular recess 52 in the stem 33, form a passage thin sheet metal spun hollowi construction i having a chamber 60 filled with a liquid l1av ing a high coefficient of expansion, such as alcohol or a more volatile liquid, if preferred. At its lower end there is a boss 61 fixed centrally to the outer end wall of the chamber 60 and supported by the rod 62 which is in engagement with the inner wall of the tubular portion of the part Y of the casing 14. The head 63 of the element 22 is in threaded engagement with the stem G4 which is mounted for movement in the bore 65 in the thickened wall 66 of the upper portion X of the casing 14. The bore 65 and the passage 58 intersect near the upward end of the former and the outward end of the latter. 0n suflicient expansion of the i liquid in the element 22 stem 64 will be forced upwardly enough for the annular recess 67 to register with the passage 58. The element 22 being fixed at its lower end the stem 64 being mounted for movement in its bore, any sufficient expansion of the liquid in the element 22 will result in operation of the stem 64 as the movable member of a valve to govern the outward or linward flow of a fluid through the passage 58 and aper ture 59. Immediately on suiiciently lowering the temperature of the liquid in the thermal element 22, contraction will ensue and the stem 64 will shut off ingress or egress of any force or influence upon the element 23 and the small perforation 71, in the wall of the passageway 58, will relieve the vacuum or pressure, as the case may be, in the element 23, and permit the power exerted by the resilient member 41 to close the liquid valve 39, and thus by-pass the oool inggmedium from entering the radiator 8.

y the use of a proper tool applied at 68, 'the stem 64 may be lengthened or shortened ris to change the degree of temperature at which the force necessary to operate the mechanical element 23 will be admitted into the passage 58and through the aperture Generally speaking, the cooling medium should be raised to from 170 to 180 de rees F. before the stem 64 and its annu ar recess 67 will register with the passa e 58.

n the foregoing description I have disclosed a complete and operable construction comprising a valve 39, which is disposed in a liquid passage, mechanical means in oper ative relation to the valve, and a thermal element operative to admit and exclude a force to operate the mechanical element and its liquid valve '39. However, should the user automatically operate means to permit the introduction of water vapor orother fluid to the fuel mixture, it is only necessary to employ the plug 47 construction from the gasket 51 upward, as hereinbefore described, otherwise such construction of the plug 47 may be omitted without in any manner interfering with the propel' functions of the other parts.

The pipe 17 which is connected at 19 in a manner to employ 'the force of partial vacuum or suction of the piston in the engine cylinders exerts a power to collapse the diaphragm or mechanical element 23 when not excluded by the stem 64 of the thermal element 22.

I do not limit my invention to the employment of such force but consider that I am entitled to the use of compressed `air for the operation of the mechanical element 23 with slight modifications in structure.

In Fig. 3 is a slightly modified form of the lower engaging end of the link 36 with the ear 69, and the apertured ear 70 of the valve 39 for attachment of the resilient element 41, when a fluid under Vcompression is employed for operation of the valve 39.

In operation, when no vapor means is used, or some other means for supplying 1 vapor or other fluid to the fuel mixture is v employed, the thermostat 22, and the me# chanical element or diaphragm 23, consti` tute complete means for automatically operating valve means to by-pass a cooling me- ,dium from circulation through a radiator until the temperature of'the liquid medium is raised to 170 to'180' degrees Fahrenheit or immediately the engine is stopped.

When the engine is first started the flow of the cooling medium is through the pump 10, pipe 11, water-jackets 5, outlet manifold 12, through nipple `24, imparting heat to the thermal-element 22, and out through nipple 20, and through pipe 16 to the pump 10, and so on. When the expansive liquid within the element 22 is sufficiently expanded the stem 64 is moved enough to register the annular recess 67 with thepassage 58 when the partial vacuum created in the pipe 17 by operation ofthe pistons in the engine cylinders, when the diaphragm 23 will collapse and open the valve 39, and the cooling medium will be permitted to pass through the radiator.

Obviously at once the engine is stopped the resilient member 41 will close the valve `39 Vand normal condition of the parts will again be established.

Should the user want to employ the movement of the stem 33 to govern the flowv of water vapor or other fluidto the zone of fuel mixture, the plug 47 is formed as indicated, Fig. 2. When the influence of a partial vacuum exhausts the air from the interior of the diaphragm 23 through the passage 58 and the aperture59, the stem 33 will be upwardly to a position of register of the annular recess 52 and the passage 53 through the plug 47, when a' water vapor or other iuid from a source of supply will pass through the pipe 55 into the zone of fuel mixture 'to be incorporated with the fuel which passes from the carbureter into the intake manifold 6 into the engine cylinder or cylinders. Promptly on stopping the engine, the iniiuence of vacuum will cease and the source of vapor or other fiuid will be closed liy the stem 33.

Should compressed air be preferred and the operation of the member 23 be reversed in addition to the changes in 'the structure shown in Fig. 3 of the drawings, the annular recess 52 in the ,stem 33 will be positioned above the passage-53 instead of below it as shown, and in such case a source of compressed air supply will be provided.

It'will be noted l have pro-vided means including a valve to permit the cooling medium to flow through an auxiliary channel when the engine is not in operation, instead of pursuing the usual or direct course through the main or normal channel.

It will be understood considerable variation and change is possible in the details of the construction thus specifically shown and described, and I do not intend by illustratingr a single, specific or preferred embodiment of my invention to` be limited thereto; my invention being in the appended claims to secure protection upon all the novelty there may be in my invention as broadly as the state of the art will permit.

Having thus fully described my invention, what I claim as new and desire to secure by Letters-Patent, is: y

1. In a thermal-controlled circulating system, the combination of an engine rylin der and a vvaterja :ket therefor, fuel feeding means, means including a radiator for supplying a cooling mediuluto the waterjacket, means including a valve to by-pass `the cooling medium through an auxiliary channel when the engine is not in operation` a diaphragm normally inoperative and connected with the valve, and u thermal element having an independent valve for rontrolling the operation of the diaphragm.

2. In a tluu'lnal-controlled circulating sys tem, the combination of a plurality of engine cvlinders each having a water-jacket therefor. fuel feeding means. means including a radiator for supplying a cooling medium to thewater-jackets. means including a valve to by-pass the cooling medium through an auxllo tive and connected with the valvepa thermal element having an independent valve to control the passage Yof a force to operate the diaphragm.

3. In a thermal-controlled circulating system the combination ofa plurality of engine cylinders each having a water-jacket therefor, fuel feeding means, means including a radiator for supplying a cooling Inedium to the water-jackets, means including a valve to by-pass the coolingr medium through an auxiliary channel when the en'- gine is not in operation, a diaphragm normally inoperative and connected to said valve, a source of power to operate the diaphragm and its valve and an independent thermal element to render operative said source of power to actuate said diaphragm.

4. In a thermalcontrolled circulatin system, the combination of a plurality o cylinders each having a water-jacket theref fir, fuelV feeding means, means including a radiator for supplying a cooling medium to the WaterA jackets.` means for forcing the cooling medium through the water-jackets of the cylinders, means including a valve to b v-pass the cooling medium through an auxiliary channel when the engine is not in operation, a diaphragm normally inoperative and connected with the valve, a thermal element having a separate valve to control a force to operate the diaphragm.

5. In a thermal-controlled circulating system, the combination of a plurality of engine cylinders each having a water-jacket therefor, fuel feeding means, means including a radiator for supplying a cooling medium to the Water-jackets, means for forcing the cooling medium through the Waterjackets of the cylinders, means including a valve to by-pass the cooling medium through an auxiliary channel when the engine is not in operation. a diaphragm normally inoperative `and connected to said valve, a source of 'power to operate the diaphragm and its valve and au independent thermal element to render operative said source of power to actuate the diaphragm.

(S. In a thermal controlled circulating system, the combination of a plurality of engine cylinders each having a water-jacket therefor, fuel feeding means` means including a radiator for supplying a cooling me dium to the water-jackets, means forcing the cooling medium throughthe water-jackets of the cylinders, means including a valve to by-pass the cooling medium through an auxiliary channel when the engine is not in operation, a diaphragm normally inoperative and connected to said valve, a source of power to operate the diaphragm and its valve. a thermal element to render operative said source of power to actuate the diaphragm, means for supplying Water vapor so as to be combined with the fuel mixture,

and lvalve means carried by the diaphragm to govern the flow of water vapor to the'fuel mixture according to heat conditions of the vapor. y

7. In a thermal-controlled circulating system, the combination with a plurality of internalcombustion engine' cylinders each having a watenjacket therefor and a radiator having cooling medium circulating connection with the Water-jackets of a casing having a plurality of outlets and having wit-hin a dlaphragm normally inoperative, a valve within the casing and connected to the diaphragm, a source of power to operate the diaphragm and its valve, and a thermalelement to render operative said source of power to actuate the diaphragm.

8. In a thermal-controlled circulating system, the combination with a plurality of internal combustion engine cylinders each having a Water-jacket therefor and a radiator, and cooling medium circulating oonnection with the Water-jackets, ofs a casing having a liquid conduit therethrough, a

valve in the vconduit and normaily sprm' closed, a diaphragm Within the casin an in operative engagement with the va ve, a source of power to operate the diaphra m .and its valve,` a thermal element to ren er operative said source of. power to actuate the diaphragm and suitable means to supply such power.

9. In a thermal controlled circulating system, the combination with a plurality of internal combustion engine cylinders each having a water-jacket therefor and a radiator and cooling medium circulating con nection with the water-jackets, of a casing having a liquid conduit therethrough, a valve .in the conduit, a resilient member mounted to constantly urge the valve to closed position, a diaphragm in operative engagement with the valve, and thermal operated means to admit and exclude a force to actuate the diaphragm.

10. In a 'thermal-.controlled circulating system, the combination with a plurality of 4internal-combustion engine cylinders each having a Water-Jacket therefor and a rad1- ator and cooling medium circulating connection with the Water-j adkets, ofv a casing having a ronduit therethrough,`a valve in the conduit, a-diaphragm in operative engagement with the valve, a fluid passage from the interior of the diaphragm outwardly, a thermal element, Within the casing, having a valve stem in threaded engagement'therewith and intersecting said fluid passage to control, a force through said passage to opcrate the diaphragm.

l1.` In thermal-controlled valve means, a diaphragm operable by partial vacuum,

,means to exhaust the air from the diaphragm and an independently operable thermal element carrying the movable member of a valve, for controlling the operation of the diaphragm. p

12. In thermal-controlled valve means, a casing having a liquid conduit therethrough and a plurality of liquid outlets, a diaphragm and a thermal element within the casing and a source of power to voperate the diaphragm.

13. In thermal-controlled valve means, a casing having a liquid conduit therethrough and a plurality of outlets therefrom, a valve in the conduit, means to constantly urge th'e valve to closed position, a diaphragm in operative engagement with the valve, a fluid passage from Within the diaphragm to the outside of the casing, a thermal element having valve means to control the flow`of a fluid through said passage to operate the diaphragm and its valve.

14. In thermal-controlled valve means, a casin having a conduit therethrough, and a plura ity of outlets therefrom, a valve in the conduit, means to constantly urge the valve to closed position, a diaphragm in operative engagement with the valve, a fluid passage from Within the diaphragm to the outside of the casing, pipe connections between the fluid passage and means to provide a partial vacuumand a thermal element having valve means to control the flow of'a fluid through said passage to operate the diaphragm and its valve.

15. In thermal-'controlled valve means. a casing having a conduit` therethrough, a valve disposed in the conduit, means to constantly urge the valve to closed position, a diaphragm Within the casing and in operative engagement With the valve, a fluid passage from Within the diaphragm to the outside of the casing. pipe connections between the fluid passage and a source of compressed air to operate the diaphragm, and a thermal element fixed at one end within the casing and having a movable part of a valve at the other end to control said passage.

16. In thermal-controlled valve means, a casing havin a conduit therethrough and a plurality o outlets therefrom, a valve disposed in the conduit, means to constantly urge the valve to closed position, a diaphragm Within the casing and in operative engagement with the valve, a fluid passage from Within the diaphragm to the outside of the casing. pipe connections between the fluid passage and a'source of force to operate the diaphragm and a thermal element fixed at one end within the casing and having a movable member of a valve adjustably secured at the other end to pre-deter-` mine the degree of temperature at which the diaphragm is effective.

17. In thermal-controlled valve means, a casing'having a conduit therethrough, a

valve disposed inthe conduit, means to constantly urge the valve to closed position, a diaphragmrwithin the casing and in operative engagement Vwith the valve, a i

fluid p'assage from the diaphragm to the utside of the casing, pip'e connections between the fluid and a source of force to operate the diaphragm, a thermal fixed at one end within'the casing and having the movable member of a valve for said passage carried by the other end, and a sourde of force to operate the diaphragm.

18. In a device of-the class described, the combination of an engine having a cylinder and a cooling fluid chamber around the cylinder, means for supplying a cooling fluid to the chamber, a motor operable to regulate the temperature of the cooling Huid in the chamber, and an automatic controller for regulating thc motive power supplied to the motor.

19. In a device of the class described, the combination of an engine having a cylinder and a cooling fluid chamber around the cylinder, means for supplying a cooling fluid to the chamber, a thermostat energized by the heat from the engine cylinder, a differentially energized motor for regulating the temperature of the cooling fluid in the chamber, and, means operated by the thermostat for controlling the energy supplied to the differentially energized motor.

20. In a device of the class described, the combination of an engine having a cylinder and a cooling fluid chamber around the cylinder, means for providing a cooling fluid to the chamber, and a plurality of differentially operable motors for re ulating the temperature of the cooling uid in said chamber.

21. In a device of the class described, the combination of an engine having a cylinder and a cooling fluid chamber around the cylinder, means for providing a cooling fluid to the chamber, a motor adapted to be energized to regulate the temperature of the cooling fluid to the chamber, and an automatically operated valve for controlling the energizing of the said motor. i

22, In a device of the class described, the combination of Van engine having a` cylinder and a cooling fluid chamber around the cylinder, means for providing a cooling fluid to the chamber, mechanism including a motor adapted to be energized to operate the mechanism to regulate thc temperature of the coolingr fluid in the chamber, and an independently operable thermostat for controlling the operation of the said motor.

23. In a device of the class described, the combination of an engine having a cylinder, a jacket spaced from the cylinder to form a cooling fluid chamber therebetween, means for supplying a cooling fluid to the chamber, and mechanism adapted to act at a predetermined temperature when the engine is in operation to regulate the cooling fluid in the chamber, and adapted to `re-act independently of the temperature when the engine is stopped.

24. In a device of the class described, the combination of a cooling fluid duct, a valve therefor, a motor at one side of the valve for operating th'e valve, and a thermostat at the other side of the valve for controllin the operation of the motor.

25. In a` device of the class described, the combination of a cooling fluid duct, a valve therefor, a thermostat, and independently operable mechanism controlled by the thermostat for actuating the valve.

26. ln a device of the class' described, .the combination of an engine and its earbnreter, means for supplying a, cooling Huid tothe engine, a thermostatic device for regulating thc temperature of the cooling fluid, and means cooperating with the said thermostatic device for regulating the fuel mixture supplied to the engine by the carbnreter.

27. In a device of the class described, the combination of an engine and its carbureter, a jacket for said engine for providing e cooling fluid chamber, means for supplying a cooling fluid to said chamber, a thermostat for controlling the temperature of the' cooling Huid in the chamber, means for supplying an ingredient to be combined with the 'lnel mixture furnished by the carbureter, and means operated by said thermostat to regulate the supply of said ingredient.

ln testimony whereof I aix my signature in the presence of a witness.

CHARLES L. `RAYFIELD. lVitness:

SCOTT M. HOGAN.