US990744A - Fuel-oil regulator. - Google Patents

Description

E. M. JONES. FUEL OIL REGULATOR.

:APPLICATION FILED 00T.19, 1910. 990,744.

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Patented Apr. 25, 191,1.

E. M. JONES. FUEL OIL REGULATOR.

APPLIoATIoN HLBD 0011.19. 1910.

Patented Apr. 25, 1911.

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EDGAR lll/[AWER JONES, OF MORENCI, ARIZONA TERRITORY.

FUEL-OIL REGULATOR.

Specification of Letters latent.

Application filed October 19, 1910.

Patented Apr. 25, 1911. Serial No. 587,863.

To all whom it may concern:

Be it known that I, EDGAR M. JONES, a citizen (if the United States, and a resident of Morenci, in the county of Graham and Territory of Arizona, have invented a new and Improved Fuel-Oil Regulator, of which the following is a full, clear, and exact description.

Among the principal objects which the present invention has in view are: to provide an apparatus for regulating the sup-ply of oil in an oil furnace proportioned to the pressure produced by the heat within said furnace; to provide an apparatus constructed and arranged to be operated by the pressure medium to produce which t-he oil fuel is furnished; to provide means for manually fixing the relative ratio of the elements forming the fuel; and to provide a construction for an apparatus of the character mentioned which is simple and etlicient.

One embodiment of the present invention is disclosed in the structure illustrated in the accompanying drawings, in which like characters of reference denote corresponding parts in all the views, and in which- Figure 1 is a side elevation of an apparatus constructed and arranged in accord ance with the present invention; Fig. 2 is a plan view of the same; Fig. 3 is a longitudinal vertical section, on an enlarged scale, of the oil and steam valve casings and base plate therefor, constructed and arranged in accordance with the present invention; and Fig. 4 is a detail view in section, taken on the line ili-4 in Fig. 3, showing the valve seat plate and means for adjusting the same to limit the valve passage.

The present machine is intended for employment in connection with furnaces using gas as a fuel. The gas employed is combined steam and heavy oil. It becomes necessary to regulate the proportions of steam and gas to form the best mixtures, or mixtures best adapted to the uses in which the oil is employed. The important element in such a furnace is the proper supply of air to support combustion. In the present apparatus the regulation of the supplyv of steam, oil and air is constant.

Vhen the proportions of the gas and air have beendetermined and provided for, it is deemed further advantageous to regulate the supply of fuel and air for supporting combustion therein, the said regulation being controlled by the pressure of the expanding medium formed by the heat of the furnace.

From suitable supplies, and by way of supply pipes 9 and 10, are delivered steam and oil respectively. When the steam is delivered through the pipe 9 the regulator is employed in conjunction with a steam boiler A. The steam is delivered by the pipe 9 to a chamber 11 in the valve casing 12, the pipe 9 being screwed into an orifice 13 in the outer wall of the said casing 12. The casing 12 is provided preferably in the lower wall with a second orice 14, to which 1s .connected a steam delivery pipe 15. The orifice 14 is extended through a valve seat 16. Upon the valve scat 1G rides a sliding valve 17. The valve 17 is of the usual sliding type, and is provided with a flange 18 which extends into al groove 19 formed in the plunger rod 20.

The plunger rod 2,0` is provided with a perforation 21, which is screw threaded to receive the threaded end of a valve stem 22, as shown best in Fig. 3 of the drawings. Mounted upon the valve stem 22 is a solid piston head 23, adapted to slide in a cylindrical bore provided in the end of the casing 12. The piston head 23 is provided, as shown in the drawings, with any approved and usual type of packing rings. The valve stem 22 is elongated to extend outward from the casing 12 beyond the piston 23 to form a guide plunger 24. The plunger '24- is slidably mounted in a guide plate 25, which guide plate is supported by screw threaded rods 2G, 26. By manipulating the nuts 27 27, the plate 25 may be advanced to or retracted from the face of the casing 12. Between the plate 25 and the piston head 23 is extended a spiral spring 28, the normal action of which is to dispose the piston head 23 and valve 17 connected therewith in position to maintain the opening of the orifice 111, as shown substantially in Fig. 3.

Vhen in the operation of an apparatus of the character described in conjunction with a steam boiler, the pressure in the boiler rises above the normal or designed pressure, this pressure is imparted to the steam in the chamber 11, and acting against the piston 23, compresses the spring 2S, moving the said pistonoutward from the chamber 11. The movement of the piston 23 outward from the Cof chamber 11 draws the valve 17 over the orifice 14limiting in this manner the quantity Vof steam which may pass through the orifice 14 into the delivery pipe 15, and in this man- 'ner reducing the supply of fuel to the furis'connected by screw thread connection with the valve stem 29, the inner end of which is provided with a groove to engage the flange 31 formed on the valve 32. The valvev 32 is slidably mounted on a movable seat plate 33, the orifice 34 whereof equals in length the orifice 35 of the seat plate 36. The two seat plates 33 and 36, when normally adjusted, regulate the passage opening` for the oil from the chamber 37 to oil delivery pipes 38, 38. The operation, however, of the valve 32 is independent of the orifice opening of the two seat plates, and operates to close the passage formed in the upper plate 33 simultaneously with and by reason of rthe action of the steam pressure in the chamber 11 upon the piston head 23. In other words, as and in proportion`to the limitation of the steam delivered from the chamber 11, so the oil delivered from the chamber 37 is limited.

The oil chamber 37 is formed inthe valve casing 39, as seen best in Fig. 3 of the drawings. The oil delivery pipe 10 opens into the chamber 37 through a screw threaded orifice 40.

The seat plate 33 is provided to form an independent and automatic regulation for the oil supply, this being limited in accordance with the pressure on the oil, which pressure varies. The oil in the chamber 37 being in communication with the supply is under the same pressure as the supply.

VVhe/n the pressure increases in the chamber 37 above the p normal, the piston head 41 mounted in the cylindrical bore in the rear of the casing 39 is moved outward from the chamber 37, compressing the spring 42 in such movement. The spring 42 is mounted around the plunger 43, which plunger is guided in a guide plat-e 44. The guide plate 44 is supported by screw threaded rods 45, 45. The tension of the spring 42 is regulated by manipulating the nuts 4G, 46. The plate 33 is connected by means of a stem section 47 with the `piston head 41.

Ilnder normal conditions the spring 42 maintains the plate 33 so that the orifice 34 therein alines with the opening of the passage connected with the delivery pipes 38. When, however, during the operation the pressure of the oil increases, it will be seen that the piston head 41 and plate 33 connected therewith are moved outward, the

said plate and orifice 'thereof passing over the orifice in the plate 35, and partially closing or constricting the passage opening into the delivery pipes 38. In this manner the supply of oil is regulated independently `of the fixed ratio of steam and oil for which the apparatus may have been set.

It will be seen that so far as the oil and steam are concerned the regulation of the mixture is automatic both as to the pressure of steam produced in the boiler, and to any pressures not calculated produced in the oil. supply.

As stated, the ratio of steam to oil is manually fixed. This is accomplished by means of hand wheels 48 and 49. The wheel 48 is fixedly mounted on the stem 29, the screw threaded end 50 whereof is in thread engagement with a tapped bore 51 formed in the rod 20. By turning the wheel 48 it is obvious that the stem 29 and valve 32 connected therewith are moved to or from the casing 12, and the position of the valve 32 is changed with relation to the seat plate 33 and the orifice 34 formed therein. In this manner, and under normal conditions, the ratio of oil to the volume of steam may be varied.

By manipulating the wheel 49, and holding the wheel 48, it will be seen that the rod 2O is moved longitudinally on the stem 22, carrying the valve 17 therewith to dispose the same over or remove the same from the orifice 14. In this manner the valve 17 may be manipulated to constriet or expand the normal steam passage from the chamber 11 without disturbing the relation of the valve 32 to the orifice 34. When manually set the valves 17 and 32 operate in unison, and by reason of the steam pressure in the chamber 11.v

As shown in Fig. 4 of the drawings, the casing 39 is further provided with oil delivery regulating means consisting in the plate 36. The plate 36 is mounted in an elongated transverse passage 52, Vthe sides whereof areI undercut to receive the bevel edges 53, 53 of the plate 3G. As described, the plate 36 is provided with an elongated orifice 35. In the transverse dimension the orifice 35 coincides with the opening of the orifice 34 in the superposed rplate 33. The plate is guided to move in a longitudinal passage 54 formed inthe casing 9. the plate 36 is moved transversely, the arrangement of the parts results in a restriction of the oil passage opening through the orifices 34 and 35. To move the plate 3G there are provided set bolts 55, 55. The bolts 55, 55 are provided with lock nuts 5G, 5G which may be manipulated to set the adjusted position of the bolts 55,55. The manual adjustments thus provided for prove to When, therefore, A

be a great advantage in adapting a regulaf ing drawings to the demands arising in the use of oils of different nature, character and pressure.

As stated above, the air supply for supporting combustion in the furnace is an essential element to the perfect regulation of the combustion. In the present apparatus the air is delivered to the furnace through ducts 57, 57. The ducts 57, 57 are fed from the outside air through an intake opening 58. The opening 58 is provided with a slide valve 59, which valve is manually operated to move transversely across the opening` 58 to reduce the passage opening therein.

Above the slide valve 59 is provided guide ways for a flat gate valve 60. The valve G0 connected by means of a rod 61 with a rocking lever 62. The lever 62 is pivotally connected to the rod G1 and the plunger 24, as shown best in Fig. 1 of the drawings. The lever 62 is provided with a slot 63 through which is extended a pivot bolt 64. The bolt G4 is mounted in the ends of a bracket 65, which bracket is adjustably secured upon a standard 66, the slot G7 formed therein being provided to receive a clamping bolt G8.

By adjusting the bracket 65 vertically in the standard 66 and lever (32 the center of rotation of the said lever G2 is changed, and the extent of movement Vof the rod 61 and valve 60 is varied. When once set to produce the desired movement of the valve 60, the bracket 65 is stationarily fixed by manipulating the nut on the bolt 68 to hold the bracket rigid in adjusted position on the standard G6.

With the valve 60 thus connected to the plunger 24 it will be seen that as the piston 28 and the valves 17 and 32 are moved, by the same action the said valve 6() is also and simultaneously moved. The movement of the valves 17 and 32 to close the orifices let and 34k results, by reason of the interposition of the lever 62, in the closure of the valve 60 over the intake opening 58, thereby limit-ing the supply of air to the ducts 57, 57.

The casings 12 and 39 are provided with stufling boxes G9, 69 of any approved and suitable construction. The said casings are mounted on a base plate 70, likewise constructed in any approved manner, that shown in the drawings having an upturned flange 71, the object of which is to hold any leakage which may occur from the casing 39 or parts connected therewith.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent is y l. A fuel oil regulator, comprising a steam casing having an inlet and an outlet orifice; an oil casing having an inlet and an outlet orifice; slide valves mounted in said casings and arranged to close said outlet orifices; a connecting rod uniting said valves; a piston head mounted in a ste'am chamber in open communication with the pressure chamber connected with the furnace to which fuel is being supplied through the said regulator; an air duct for supplying air to said furnace; an intake valve for said duct; and means for operatively connecting said intake valve with said piston head to operate in unison with the said first mentioned valves.

2. A fuel oil regulator, comprising a steam casing having an inlet and an outlet orifice; an oil casing having an inlet and an outlet rificc; slide valves mounted in said casings and arranged to close said outlet orifices; an extensible connecting rod connecting said valves; a piston head mounted in a steam chamber in open communication with the pressure chamber connected with the furnace to which fuel is being supplied through the said regulator; an air duct for supplying air to said furnace; an intake valve for said duct; and means for operatively connecting said intake valve with the piston head to operate in unison with said slide valves.

3. A fuel oil regulator, comprising a steam casing having an inlet and an outlet orifice; an oil casing having an inlet and an outlet orifice; slide valves mounted in said casings and arranged to close said outlet orifices; a connecting rod uniting said valves; manually operated means for varying the maximum opening of said outlet orifices; a piston head mounted in a steam chamber in open communication with the pressure chamber connected with the furnace to which fuel is being supplied through the said regulator; an air duct for supplying air to said furnace; an intake valve for said duct; and means for operatively connecting said intake valve with the piston head to operate in unison with said slide valves. Y

4L. A fuel oil regulator, comprising a steam casing having an inlet and an outlet orifice; an oil casing having an inlet and an outlet orifice; slide valves mounted in said casings and arranged to close said outlet orifices; a connecting rod uniting said valves; a piston head mounted in a steam chamber in open communication with the pressure chamber connected with the furnace to which fuel is being supplied through the said regulator; an air duct for supplying air to said furnace; an intake valve for said duct; means for operatively connecting said intake valve with said piston head to operate in unison with the said slide valves; and manually op erated means for varying the normal intake opening of said duct.

5. A fuel oil regulator, comprising a steam casing having an inlet and an outlet orifice; an oil casing having an inlet and an outlet orifice; slide valvesmounted in said casings and arranged to close said outlet orifices; an extensible connecting rod con- -necting said valves; a piston head mounted openingof said outlet orifices; a piston head :in a steam `chamber in open communica-tion I' withv 4the -pressure chamber connected With the furnace to which fuel is being supplied "through Vthe said regulator; an air duct for supplying air to said furnace; an intake valve for said duct; vmeans for operatively connecting said intake valve vwith said piston head to operate in unison with said slide Valves; and manually operated means for Vary-ing the normal intake opening of'said duet.

6. A fuel-oil regulator, comprising a steam casing having an inlet and an outlet orice; an oil casing havin-g van inlet and an outlet orifice.; slide valves mounted in said casings and arranged to close said outlet orificesga connecting rod uniting said Valves; manually operated means lfor varying the maximum mounted in a steam chamber in open communication with the pressure chamber oonnected with the furnace to Which fuel is being supplied through the said regulator; an air duct for supplying air to said furnace; an vintake valve for said duct; means for operatively connecting said intake Valve with said piston :head to operate in unison with said slide valves; and manually operated means for Varying the normal intake opening of said duct.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EDGAR MAVVER JONES.

Witnesses J. M. ERICKSON, C. A. CAsALEY.

Copies of this .patent may be obtained for five cents each, `by addressing the Commissioner of Patents, Washington, `I). C.

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