US1001592A - Motive-fluid generator. - Google Patents

Description

G. B. HAYES.

MOTIVE FLUID GENERATOR.

APPLICATION FILED AUG. 2'1. 1910.

1,001,592, Patented Aug. 22, "1911.

2 SHEETS-SHEET 1.

G. B. HAYES.

MOTIVE FLUID GENERATOR.

APPLIGATION nun) AUG. 27, 1910.

1,001,592. Patented Aug. 22, 1911.

2 SHEETSSHEET 2.

wi/bwzooeo COLUMBIA I'LANOORAPN C0,.WA5IUNOTON. n. c.

lUNlTED STATES PATENT OFFICE.

GEORGE B. HAYES, OF DENVER, COLORADO.

MOTIVE-FLUID GENERATOR.

To all whom "it may concern:

Be it known that I, tlnoncn B. Harris, a citizen of the United States, residing in the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Motivedfiluid (ien erators; and I do declare the following to be a. tail, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac companying drawings and to the letters and Iigures of reference marked thereon, which form a part of this specitication.

irl y invention relates to that class of internal combustion generators in which solid fuel and air are burned continuously and under constant pressure while the highly heated products of combustion are delivered to a. liquid contained in the generator and diluted with steam gene ated by the exces sive heat of the products of combustion and automatically reduced to a suitable working ttnnpcrature so that it can be used in the working cylinder of a motor without dctri ment thereto. Both the products ot combustion and the vapor ot the liquid are utilized preferably in combined form.

The objects of the invention are:

First. To generate directly from solid fuel a motive fluid which will contain all of the heat incidental to combustion and that will be tree from solid particles such as ashes. which are detrimental to the cylinders of the engines with which the fluid is employed. which .tluid shall also have a constant and suitable tenq'ierature that can be used in the cylinder of a motor without detriment thereto.

Second. To construct a generator having a. regenerative combustion chamber that will give complete combustion of the 'tuel with as little excess air as possible. This is accomplished by the exceedii'igly high degree o't heat retained in the combustion chamber and utilized for regenerating the gases. while the double construction oi? the combustion chamber and the manner in which the products are separated. therefrom also contribute to this end.

Third. To automatically regulate or control the How ot fuel and air to the combustion chamber and liquid to the generator as may be required by the latter, the Fuel supply being regulated by the double construction of the combustion chamber which pre- Specification of Letters Patent.

Application filed August 27, 1910.

Patented Aug. 22, 1911.

Serial No. 579,348.

vents the said chamber from ever becoming overclmrged with fuel. The air receiver pressure isgoverned and this in turn governs the generator pressure and regulates the air supply. By maintaining a predetermined and constant pressure in the rcceivcr any tluctuation oi. the generator pres sure from the said receiver pressure will cause an increase or decrease in the How of air as the case may be.

Fourth. To provide a simple and convenient means for igniting the solid 'l'uel through ti 2 agency of fluid fuel and an igniting device.

Fifth. To provide a flow of air sutl'icicnt tor atitomatically keeping the fire ignited when the generator is not in use, by adjusting the relief valve on the generator to open at a somewhat lower pressure than the pres sure maintaintal by the governing valve in the air receiver.

Sixth. To provide an apparatus of simple construction and arrangement of parts and having few parts which can lXCOll'lt deranged, while the whole is protected 'lrom the destructive action of the heat.

The water supply is regulated by a float valve which siimiltaneously regulates the supply as required by the generator and the (low through the air compressor jacket as rctpiircd by the air compressor.

Since an apparatus o't this character works n'iore or less intermittently. it is 'lrcqucntly necessary that the solid fuel be ignited while under boiler pressure. and I have provided means for :u-complishing this end through the agency of fluid fuel and an igniting device. In this constructimi the 'l'ucl receptacle is mounted upon and above the combustion chamber and the tuel ted to the combustion chamber by gravity. the lower part being submerged in the liquid of the generator while the upper part protrudes through the generator and is rendered accessible for recharging. The lower part (it the receptacle contains a cone-slmpcd valvc which is operated from a position outside oi? the generator. he combustion chamber is composed of two compartments, a primary and a secondary combustion chamber. The high temperature of the sccondary combustion chamber is rcverberatcd into the primary combustion chamber and utilized for regenerative purposes. Below the combustion chamber and protruding through the generator is an ash receptacle having an opening in its lower part and a cover bolted over the same. Between the combustion chamber and ash receptacle is a shakable perforated grate mounted to be readily dumped for the purpose of clearing the same. This grate is preferably composed of some refractory material and is adapted to be operated from a position outside of the generator. The inner fire clay chamber is composed of several segments which set in a tapered collar in the upper part of the main combustion chamber and are thus securely wedged in place. Air is supplied to the combustion chamber through the fuel receptacle and above and through the ash receptacle from below, the supply being regulated by the respective valves. A small liquid receptacle contains gasolene or other highly inflammable fuel which may be easily ignited with a spark. This fuel is used for igniting the solid fuel. The liquid fuel is conducted to and injected into the twyer at an angle and caused to enter the combustion chamber in an atomized condi tion by the air supply to the twyer from outside the generator.

Having briefly outlined my improved construction, T will proceed to describe the same in detail, reference being made to the accompanying drawing in which is illustrated an embodiment thereof. I

In this drawing: Figure 1 is a vertical longitudinal section taken through a generator equipped with my improvements. Fig. 2 is a view partly in elevation and partly in section showing the generator connection with the air compressor receiver and water supply tank, employed in connection with the generator in the use of my improved construction, the parts being shown on a smaller scale. Fig. 3 is a sectional view of the gov ernor interposed between the air receiver and the water tank for the purpose of regulating the pressure in the former, the parts being shown on a larger scale than in Fig. 2. Fig. 1 is a section taken on the line 2-2 of Fig. 1, looking in the direction of the arrow.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate a generator containing liquid which is designated by the numeral 6. Mounted within this generator is a combustion chamber 7 composed of an inner wall 8 of fire clay, and an outer relatively thin wall 9 of metal. In the bottom of this chamber is located a grate 10 which may be of any suitable construction. As illustrated in the drawing this grate is trunnioned as shown at 12 in a base 13, one of the trunnions being extended as shown at 141; and passing through the end wall of the generator from which it protrudes for manipulating purposes. To the exposed extremity of this extension is applied a hand crank 15. The top of the generator is open as shown at 16 to receive a cone-shaped circular partition 17 which separates the combustion chamber into two compartments 18 and 19. The partition 17 protrudes downwardly well toward the bottom of the combustion chamber, and into it is fed the fuel 20 from the fuel receptacle 21, which is mounted in the upper part of the generator directly above the combustion chamber, being secured to the top of the generator by an angle ring 22. The lower part of the fuel receptacle is cone-shaped and a section 23 thereof is removable. This removable sec tion fits into the top of the circular partition 17 and is of such diameter that when it is removed, an opening in the bottom of the fuel receptacle is formed sufiiciently large to permit the removal of the [ire clay parti tion 17, which is composed of a number of segments 24, which are sufficiently smallv to be passed through the top opening 25 of the fuel receptacle. This opening is normally closed by a cap 26.

The passage of fuel from the receptacle 21 directly into the compartment 18 of the combustion chamber is regulated by a coneshaped valve 27 with which is connected an upwardly projecting stem 28, whose upper end is pivotally connected as shown at 29 with a crank arm 30 fast on a shaft 31 journaled in the upper part of the fuel receptacle as shown at 32. This shaft passes through the wall of the receptacle on one side and is surrounded by a stuffing box 38, whereby a fluid-tight oint is formed. The protruding extremity of the shaft is equipped with an exposed operating handle at by means of which the position of the valve may be regulated for the purpose of controlling the quantity of fuel supplied to the combustion chamber.

The combustion chamber is provided with an opening 35 which communicates with a gooseneck shaped conduit 86 whose free extremity terminates near the bottom of the generator and is open to allow the products of combustion to pass directly into the liquid of the generator. 0n the opposite side of the combustion chamber and communicating with the bottom of the compartment 19, is a twyer 38 which as shown in the drawing has a threaded inner extremity screwed into the wall of the combustion chamber. This twyer protrudes through one end of the generator and its exposed extremity 38 is provided with a transparent lens 39 to permit the operator to inspect the interior of the combustion chamber while the same is tightly closed. Communicating with this twyer shown at 4:0 is a pipe 41 provided with a controlling valve The extremity of this pipe remote from the twyer communicates as shown at 4t?) with the bottom of a relatively small receptacle lat containing some readily combustible igniting fuel 15,

as gasolene. This receptacle is provided with an inlet pipe 4L6 terminating at the top in a tunnel t7 and controlled by a valve 4L8. The upper extremity of the receptacle ll communicates by means of a pipe slit) with a branch pipe 50, one extremity of. which comnmnicates with the top of the fuel receptacle as shown at 51, and is equipped with a. corn trolling valve 52 located between the pipe .1-9 and the fuel receptacle. The opposite extremity of the branch pipe 50 communicates with a. pipe 53, one extremity of which in communication as shown at :35 with the bottom of an air receiver 54. Connected with the upper extremity of this receiver is a pipe 56 in which located a valve 57. The upper end of the pipe 5b is in communication with a chamber 58 in which is located a valve 59. Also leading from this chamber opposite the pipe 56 is a pipe (30 which leads to the top of a water tank (51 and is provided with a valve (32. Connected with the pipe (30 as shown at (33 is a pipe ti l which communicates with the cylinder 65 of an air compressor (36, the engine cylinder (57 being supplied with motive fluid through a pipe (38 con nected at one extremity with the steam chest ($9 of the said cylinder, and at .its opposite extremity with the steam dome of the generator 5. The pipe cmnmunicates at its extremity remote from the air receiver 5-twith the ash pit 71 located below the grate of the combustion chamber and pro trading below the generator, its bottom being provided with a removable closure 72. .tetween the pipi 50 and the ash pit the pipe 53 is provided with a valve 7 8.

l ieading from the top of the air receiver 5 .1: is a pipe 7 i whose upper extremity communicates with a governor chamber 75 in which is located a piston 7 (5 attached to the upper extremity of the stem 77. Into the bottom Of this chamber is screwed a plug 7 8 through which passes the piston rod 77, the lower extremity of the rod passing through a closure 7!) screwed into the top of the valve chamber 58, the said closure being provided with a stalling box 80, whereby a fluid-tight joint is ifiormed. The lower extremity of? the piston rod 77 is equipped with a valve piece at). which is normally located in the upper part of the chamber above the adjacent extremity Oil the air pressure pipe 56. Normally the air receiver St is in communieation with the top of the water tank til wherel'iy the water is under the necessary pressure to force it into the generator. This water. however, passes thrmigh a pipe 82 controlled by a valve 83, into the water jacket 84 of the air compressor cylinder (35, the said water jacket being in communication with a pipe 85 whose opposite extremity communicates with the boiler as shown at 86.

A coil spring 87 is interposed between the piston 76 and the closure 78 of the governor chamber 75. The closure 78 being threaded into the wall of the chamber 76, acts as a tension nut to regulate the tension of the spring 87, whereby the governor may be so set that the pressure on the piston 76 from the air receiver :rlwill actuate the piston and consequently the valve St), to cut oil' communication between the air receiver and the water tank. attter the pressure within the receiver has reached a predetermined degree. it will he umlerstood that the pressure within the water tank should be somewhat greater than that within the generator, since the generator is supplied with water from the said tank.

The pipe 85 as illustrated in the drawing rises within the generator and to its upper extremity is attached a valve 88 controlled by a float 8f), the construction and arrangement being such that when the water reaches a predetermined level in the generator, the float will rise sullicienlly to automatically close the valve 88 and prevent the further entrance of water until its level within the boiler has been reduced sufliciently to lower the 'float and open the valve.

The steam dome 70 of. the generattn' is equipped with safety valve machanism Si and is also provided with a valve-controlled outlet 90 through which the motive fluid generated may be taken for the perl'ormance of any work desired.

The necessary air is supplied to the twyer 37 by a pipe ill le:uli11g"tro1n the branch pipe 50. The passage ot air through the pipe 91 is regulated by a valve 92. The twycr is further equipped with a spark plug 93 to which wires !)-land 9?) ol an electric circuit. the source of which is not illustrated in the drawing, lead.

From the foregoing description the use and operation of my improved construction will be readily understood.

The combustion chamber is supplied with solid fuel, as coal, from the 'tucl receptacle 2t by opening the valve 27. This fuel is originally ignited by taking some gasolene, tor instance, from the small receptacle 14-, which may be done by opening the valve -12 which will allow the gasolcne to enter the twyer through the pipe 1 1. The necessary air to term a readily inflamnnlble mixture is supplied to the twyer through the pipe Ell. A, spark 'lrom the plug i l-3 will ignite this combustible llllXt'lll. and the gasolcnc may be allowed to flow into the twyer from the small receptacle l-l until the solid fuel within the generator has become sullicicntly ignited to sustain comluistion, after which the valve -l".2 may be closed. As the fuel is consumed within the combustion chamber, the products of combustion pass through the gooseneck shaped conduit 36 into the water and heat the same, whereby steam is &

generated which combines with the products of combustion to form an exceedingly powerful motive fluid, the liquid serving to reduce the temperature of the products of combustion sufficiently to make it practicable to use this fluid in the cylinders of engines, or wherever it may be desired to employ the motive fluid to perform work. A portion of this motive-fluid is delivered to the steam chest (59 of the engine cylinder 67 through the pipe 68, whereby the air compressor is operated and air compressed in the receiver 54, this air under pressure being supplied to the water tanl: 61 through the pipes 56 and 60, and to the combustion chamber through the pipe 53 and the ash pit 71. ater from the tank 61 after passing through the water aclret 84: of the air compressor, is forced into the generator through the pipe 85 as heretofore explained.

'Qhe tension of the spring 87 of the governor is regulated to determine the maximum pressure which should be delivered to the air receiver 5%, and when this degree is reached the excessive pressure within the receiver will act on the piston 76 through the pipe 74 to actuate the valve 59 and close the inlet extremity of the pipe 56 where it comn'iunicates with the valve chamber 58. lhe pressure in this manner may be either partially or wholly cut off from the air receiver until the pressure within the receiver is reduced sufficiently to allow the piston 76 to move outwardly in response to the tension of the spring 77.

From this description it will be understood that practically the entire mechanism is entirely automatic in its operation.

The pressure of the air in the space above the water in the water tank 61 is governed by the compressor and contains a pressure exceeding that of the air receiver, as regulated by the governor valve 75.

i rttention is ca led to the fact that combustion supporting media other than air may be employed in connection with my improved apparatus.

In further explanation of the operation of the double construction of the combustion chamber it may be stated that the fuel and air are pie-heated while passing through the primary chamber 18.

The feed water on its way to the boiler from the tank (31 passes through the acket- 8 of the air compressor for the purpose of cooling the cylinder of the same.

In further explanation of the function of the open-ended conduit 86, it may be stated that the products of combustion are delivered thereby directly to the liquid of the generator without the use of valves. This is an important feature, since in an apparatus of this class in which solid fuel is used, the

open-ended conduit is much preferable to any valved mechanism, since the solid particles, such as contain acid, carried into the generator would render any valved mechanism unreliable.

Having thus described my invention, what I claim is:

1. The combination with a generator, of a combustion chamber therein communicating with the generator, a fuel receptacle protruding into the combustion chamber, means for regulating the supply of fuel to the combustion chamber, means for supplying the combustion chamber with fluid fuel and air under pressure, and means for igniting the fluid fuel while under pressure, substantially as described.

2. The combination with a generator, of a combustion chamber therein and communicating therewith, a solid fuel receptacle mounted in the generator and protruding into the combustion chamber, means for supplying the combustion chamber with fluid fuel and air under pressure, and means for igniting the solid fuel through the agency of the fluid fuel, substantially as described.

8. The combination with generator, of a combustion chamber located therein and communicating therewith, a partition supported within the combustion chamber and dividing the latter into two compartn'ients, and a fuel receptacle mounted on the gen erator above the combustion chamber and communicating therewith, substantially as described.

at. The combination with a liquid-containing generator, a combustion chamber therein and in communication therewith,the

top of the combustion chamber being open,

a fuel receptacle mounted on the generator and having its lower extremity cone-shaped and protruding into the combustion chamber, and a valve at the lower extremity of the fuel receptacle regulating the passage of fuel to the combustion chamber, the upper portion of the fuel receptacle extending beyond the generator, substantially as described.

5. The combination with a liquid-containing generator, of a combustion chamber located therein and in communication with the liquid of the generator, the upper extremity of the combustion chamber being open, a circular partition supported in the upper cart of the combustion chamber and dividing the latter into two compartments, and means for feeding solid fuel into the combustion chamber by way of the centrally located circular partition.

6. The combination with a liquid-containing generator, of a combustion chamber located therein and open at the top, an annular partition inserted in the top of the com bust-ion chamber and cone-shaped to fit thereinto, a fuel receptacle mounted on the generator and protruding thereinto, its lower extremity being cone-shaped and fitted into the top of the circular partition, the said partition terminating above the bottom of the combustion chamber, and means for regulating the passage of fuel from the fuel receptacle into the inner compartment of the combustion chamber, substantially as described.

7. The combination with a liquid-containing generator, of a combustion chamber located therein and comn'iunicating with the liquid of the generator, a circular lire clay partition inserted in the opening in the top of the combustion chamber and projecting above the same, the said partition terminating above the bottom of the combustion chamber and dividing the latter into inner and outer compartments, a fuel receptacle mounted on the generator and protruding thereinto, its lower extremity being shaped to fit into the upper extremity ofthe circular fire clay partition, and .mcans for subjecting the fuel within the receptacle to the ac tion of air under pressure, substantially as described.

8. The combination with a liipiid-containing generator, of a combustion chamber therein and connmmicating therewith, a circular partition supported within the combustion chamber and dividing the latter into two compartments, a fuel receptacle mounted within the generator and having its lower extremity coneshaped and protruding into the combustion chamber, and means for introducing air under pressure into the combustion chamber below the grate, substantially as described.

9. The combination with a litpiid-containing generator, of a combustion chamber located therein, means for introducing fuel by gravity to the combustion chamber comprising a solid fuel receptacle mounted on the generate and having its lower extremity open to deliver fuel to the combustion chamber, a receiver containing air under pressure, a connection between the said receiver and the fuel receptacle, and a similar connection between the air receiver and the combustion chan'iber, substantially as described.

1.0. The combination with a generator, of a combustion ehan'iber located therein and in conm'uinication therewith, means for feeding fuel into the top of the ctmrbustion chamber, a twyer connected with the combustion chamber and protruding through the wall of the generator, means for introducing a highly inllamnmble mixture to the twyer, and means connected with the twyer for igniting the said mixture within the twyer, substantially as described.

11. The COlIllJiIlittlOll with a gene 'ator, of

a con'ibustmn chamber located therein, means for introducing solid fuel to the combustion chamber, means for si'lbjecting the said fuel to air under pressure, a twyer communicating with the comlalstion chamber atone extremity, its other extremity protruding beyond the generator, means for introducing highly inflammable lluid to the twyer under pressure, means for igniting the fuel within the twyer and means for introducing air under pressure to the twyer, substantially as described.

1);. The combination with a generator, of a combustion chamber located therein and in communication therewith, a fuel receptacle arranged to feed fuel by gravity into the top of the combustion chamber, means for introducing air under pressure to the fuel receptacle, means for introducing air under pressure to the combustion chamber below the grate, a twyer connected with the combustion chamber, means for introducing air under pressure to the twyer, and means for introducing a highly inllammable lluid under pressure to the twyer for igniting the solid fuel of the combustion chamber, and means for igniting the fuel within the twyer, substantially as described.

The combination with a generator, of a combustion chamber located therein and in communication therewith, a fuel receptacl'c mounted above the combustion chamber,

protruding into the generator and arranged to deliver fuel into the top of the co1nbustion chamber, a liquid-containing tank for supplying the generator, a receiver containing air under pressure, and suitable connections between the receiver and the fuel receptacle, between the receiver and the combustion chamber, and between the receiver and the water tank and a valve acted upon by the pressure within the receiver for regulating the m'essure in the water tank, for the purpose set forth.

it. The combination with a liquid-containing generator, of a regenerative combustion chamber consisting of a primary and a secondary chamber, the prin'iary chamber lnotruding into the srcomlary chamber and being adapted to receive heat from the sec ondary chamber, and means for delivering solid fuel and air to the primary chan'iber, the secondary chamber being in eommunication with the liquid of the gem-rater.

In testimony whereof if allix my signature in presence of two witnesses.

GEORGE l3. HAYES. lVil nesses A. J. OBnmN, F. I Bowen.

Gopies of this patent may be obtained for five cents each,

by addressing the Commissioner of Patents,

Washington, D. C.

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