US1595877A - Oil burner - Google Patents

Description

Aug. l0 1926.

- P. H. RYDl-:R Er AL 1,595,877

OIL BURNER Filed August 2, 1922 FIGA--- INVENTOR PARMLY H- R YW?R cHAgLf-s w Moolf ATTORNEY 2 Sheets-Sheet l2 Patented Aug. l0, i926.

UNITED ST'lS PATELNT OFFHCE.

PARMLY I-I. RYDER ND CHARLES W. MOORE, 0F BUCYRUS, OHIO, ASSEGNORS vTO SMOKELESS OIL BURNER COMPANY, CORPORATION OF OHIO.

' OIL BURNER.

Application filed August 2, 1922. Serial No. 579,308.

This application is a continuation in part of our copending application Serial :#2570,- 198, led June 22, 1922. Y

This invention relates to improvements in oil burners, and has tor one of its objects the provision of a burner embodying certain lfeatures of construction which by slight modications may be utilized in burners of the high and low pressure types.

Another object of the invention is the provision of a burner in which the quantity of fuel passing therethrough may be regulated independently of the atomizing means.

Another object is the provision of a burner in which the atomizing agent may be controlled independently of the fuel supply.

A further object of the invention is the provision of means whereby the steam or atomizing agent may be remotely or semiautomatically controlled.

Other objects and advantages ot the in vention will be apparent as the description proceeds.

For a more detailed description of our invention reference is to be had to the accompanying drawings in which Figure 1 is a longitudinal section of a high pressure burner embodying the invention;

Figure 2 is a cross section, taken on lines lll-II, of Figure 1;

Figure 3 is a rear end view of the burner shown in Figure 1;

Figure 4 is a longitudinal section of a burner constructed in accordance with the principles of our invention and modiiied so as to adapt it for use on low pressure systems;

Figure 5 is a cross section, taken on lines V-V, of Figure 4; and

Figure 6 is a rear end view oi the burner illustrated in Figure 4.

Like reference characters refer to like parts throughoutV the several hgures.

Our invention will first be described with special reference to the burner illustrated in Figures 1 to 3 of the accompanying drawings which comprises a casing 1 having reciprocally mounted therein a piston 2. The interior of the casing is provided with what may be termed a pressure chamber 3 and an atomizing chamber 4, the. i'unction of which chambers will hereirafter be more fully described. The piston 2 comprises a cylindrical body portion provided on its forward end with an enlargement or head having substantially centrally disposed radial openings extending from the axis of the piston into aiuel chamber 5. Extending from the piston head is a hollow stem or shank portion 6 provided at its extremity with an external threaded portion 7. The fuel chamber 5 is formed in the piston head by making a centrally located annular groove therein, vthus substantially dividing the head into two sections 8 and 9. The forward end of the piston is provided with an internal thread into which is screwed a tapering nozzle 11 adapted to lit into a corresponding oriice provided in the casing 1 ac iacent the atomizing chamber 4. The shank portion of the piston 2 is `iournaled in position by means of a screw-threaded stuffing nut 12. Section 8 of the piston head has a central recess which is threaded to accommodate the threaded end oi' a needle point valve 13 carried upon the inner end of valve stem 14 which extends through a stufing nut 15 and is'provided with a handle 1S. The stufhng nut 15 is carried upon the end of the piston shank -6 by having screwthreaded engagement therewith, and said nut is providedwith a wheel '10 which atfords means -for moving the piston in a for ward' or rearward direction by virtue of the threads provided upon the shank 7 and stud ing nut 12. The nozzle 11 is provided with a central opening 17 which 'in conjunction ith the centrally disposed radial openings constitutes a passageway to the oil chamber 5. rIhe needle valve 13 is disposed to control the passageway' from the oil chamber by means of the handle 16.

A port 18 places the pressure chamber 3 and atomizing chamber 4 in communication with each other. rlhe port 18 is controlled by a valve 19, the stem of which is suitably` journaled in a stalling nut 21 and cari at its extremity a handle 22. As shown in Figure 1, by providing the wheel 10 with sprocket teeth adapted to be engaged by a chain 28 having its ends connected to cables 24 which may be carried through suitable pulleys (not shown), the piston 2 may be remotely controlled by eecting its movement backwards or forwards by virtue oi the threads provided upon shank 7 engaging with those of the stuliing nut 12. This conton head and the steam inlet 2T communi-v cates with the steam pressure chamber 3. lt is obvious that as the pist-on 2 recedes or moves inwardly, the oil inlet is placed in communication with the fuel chamber and the .supply of fuel permitted to flow through the passageway 17 of the nozzle 11 may be controlled by ahandle 1G of the needle point valve 13. lt is also obvious that the steam which may be admitted to the atomizing chamber through the port 18 may be regulated by means of valve 19. By virtue of these adjustments it is possi-ble to manually set the burner so as to employ any desired mixture of oil or other liquid fuel and steam or air during the operation of the burner.

Referring now to the modifications shown in Figure l1 it will be noted that the steam inlet 27 is made much larger inasmuch as this type burner is intended to operate upon low pressure air. For the same reasons the passageway between the pressure chambers 3 and l is made larger and is not fully controlled by a valve or the like. r1`he fuel and air supply, respectively, are regulated by setting or adjusting the position of the piston 2 by means of the wheel 10.

With the exceptions just mentioned, the two types of burners herein disclosed are similar in construction and a detailed description of the operation of one willsuffice for both.

The operation of the burner shown in Figure 1 may be described as follows. The travel of the piston 2 is limited between a closed position (the one illustrated) to that sufficient to permit the full opening of the oil inlet 26 into the fuel chamber 5 and the atomizing port 23 into the atomizing chamber t. In starting the burner the'piston 2 is adjusted by means of wheel so that the fuel inlet 26 and port 18 are opened any desired distance. Further regulation of the fuel supply may be had by adjusting the valve 13.

The adjustment of the valve 19 is such that a proper amount of steam Hows through the port 18 into the atomizing chamber and out through the atomizing orifice so as to give the desired mixture of steam and fuel. lith these adjustments for a starting condition the mixture of combustion materials may be *remotely controlled or semi-automatically regulated through the operation of wheel 10 by the cables 24 down to a point where the steam and fuel supply may be completely shut off by the closure of the port 18 and fuel inlet 26.

r1`he above adjustments having been made the fuel and steam are turned on and the burner lighted in any suitable manner as by a pilot light or the like. lt frequently happens that after the burner has been lighted it is desirable to change the mixture of the combustion materials. F or special uses to which our high pressure burner is adapted it is located in more or lessinaccessible places, but by inea-ns of the cables 24 the wheels 10 may be remotely adjusted which effects a change in operation of the burner.

YWhile the invention has been described with reference to the special embodiments shown, it is obvious that various changes in detail may be made without departing from the spirit and' scope thereof, but all such changes are 'desired to be regarded as contemplatedA by the invention as defined in the appended claims.

Where the term steam is used in the specification and appended claims, it is wished to be understood as including air as well, and that as used herein it is interchangeable with the word air.

What is claimed is: y

1. An oil burner comprising a casing having a piston longitudinally movable therein, said piston being provided with a fuel chamber circumferentially formed in the head thereof and adapted to divide the piston into two sections, an axial opening formed in said piston head and placed incommunication with said fuel chamber by radially disposed apertures, and means for regulating the quantity of fuel ejected from said chamber into said opening.

2. An oil burner comprising a casing having a piston longitudinally movable therein, said piston being provided with a fuel chamber circumiierentially formed in the head thereof and adapted to divide the piston into two sections, an axial opening formed in said piston head and placed in communication with said fuel chamber by radially disposed apertures, a valve for regulating the quantity of fuel ejected from said chamber into said opening, said valve being coutrolled by means external to the casing.

3. An oil burner comprising a casing having a piston longitudinally movable therein, said piston being provided with a fuel chamber circumferentially formed in the head thereof and adapted to divide the piston into two sections, an axial opening' formed in said piston head and placed in communication with said fuel chamber by radially disposed apertures, said opening being provided with screw-threads adapted to register with threads formed upon a tapered nozzle and a valve for regulating the quantity of fuel ejected from said nozzle.

4. An oil burner comprising a easing having a piston longitudinally movable therein, said piston being provided with a head having extending therefrom a hollow shank portion, said shank portion being provided with external screw threads and extending through a journal member screwed to the open end of said casing, an axial opening formed in said piston, one end of said Open '10 ing being threaded to accommodate the needle point valve having a stem extending through said shank portion, said stein being provided at its extremity With a handle whereby said valve may be opened or closed.

In testimony whereof, We have hereunto subscribed our naines this 3l day of July,

PARMLY H. RYDER. CHAS. W. MOORE.

Images