US1978357A - Fuel distributing mechanism - Google Patents

Description

Oct. 23, 1934. H; P. ANDER SO'N 1,978,357

' FUEL DIS TRIBUTING MECHANISM Filed June '20. 19:50 2 Sheets-Sheet 1 W! ATTORNEY Oct. 23, 1934. AN Rsop; 7 1,978,357

FUEL DISTRIBUTING MECHANISM Filed June 20. 1930 2 Sheets-Sheet 2 IN VEN TOR lla/ardfifizden/on m r Y J49. 5 KW Patented Oct. 23, 1934' PATENT OFFICE FUEL DISTRIBUTING MECHANISM Howard P. Anderson, Erie, Pa., assignor to The Standard Stoker Company, Incorporated, a corporation of Delaware Application June 20, 1930, Serial No; 462,499

Claims.

This invention relates to stokers in general and especially to mechanical stokers for locomotives and has for its principal object the provision of drawings, in which Fig. 1 is a central longitudinal vertical section;

through the stoking apparatus and portions'of the locomotive;

Fig. 2 is a plan view taken on the line 2--2 of Fig. 1;

Fig. 3 is a forward elevation taken on the line 3-3 of Fig. 1 in the direction of the arrows;

Fig. v4 is an isometric view of one of the deflectors; and

Fig. 5 is a section on the line 5-5 of Fig. 1.

In the drawings, the locomotive is generally represented at 10, and its frame at 11. At 12 is designated a boiler firebox of conventional design provided with the grate 13, and a backhead 14 with a firing opening 15 therethrough.

Fuel is carried from a tender, not shown, and fed to the locomotiveby suitable stoker mechanism, only so much being shown as is necessary to a full understanding of the invention. The forward tubular conduit section or riser of a flexible conduit system of the stoker is designated as 16 and extends to the firing opening 15 of the boiler. The riser 16 is carried from the baclrhead 14 by a supporting bracket 17. The,

riser terminates at its lower end in a spherical seat-18 receiving the ball member 19 of aconduit section 20 leading forwardly from a source offfuel supply. I

' From its lower end the riser 16 extends up}, wardly and forwardly,- flaring outwardly-at its {opening 15 through its laterally spreading and substantially horizontal mouth portion 21'. The

for attachment to the baelihead by suitable fastening'means, as by bolts, not shown. This mouth portion 21 is formed with an upstanding wall 23 to which is detachably connected a table 24, which forms an extended floor portion of the 65 riser terminating in the firing opening 15. Rearupper end, and communicates with the firing f. mouth portion 21 is provided with the flanges 22 .-"-"-5u warclly of the table 24 and outside of the firebox is a vertically disposed nozzle or distributor head 25 to which pressure fluid such as steam is supplied by a desired number of supply pipes 26. The distributor head 25 is provided with openings or jets 27 in horizontal alignment for emitting a fan-shaped blast of fluid across the table 24. The riser 16 is provided with an opening 28 through which access may be had to the interior of the riser. A closure 29 is provided for the opening 28. It is preferably though not necessarily hinged at its upper end as at 30 and a latch 31 holds the same in closed position.

Disposed withinthe conduit section 20 is a. screw 32 terminating adjacent the forward end of the conduit section 20. The forward portion of the screw 32 may be formed with an additional flight 33 to assist in insuring a continuous stream of fuel.

The screw 32 urges the fuel forwardly and upwardly through the riser 16 onto the table 24 and into the path of the pressure fluid blast issuing from the jets 27. In order to obtain an even distribution of fuel over the firebed and to feed fuel to the rear corners of the firebox there are provided a pair of deflector members 34, 34a, which are disposed above the table 24.

Each deflector member 34, 34a comprises an elongated bar 35 terminating in a flattened horizontal blade portion 36 flaring outwardly from the bar 35. The edge of the blade 36 toward the sidewall of the firebox may be in alignment with the edge of the bar 35, but preferably, flares outwardly at a slight angle as illustrated in the figures. The opposite edge of the-blade 36 flares inwardly at a greater angle, which is about 45 degrees, though it will be apparent that this angle may be greater or less as desired and as conditions of firing may require. The forward edge of the blade 36 is curved outwardly and depending therefrom is an apron member 3'7.

The deflector members 34, 34a are fastened each to'a respective sidewall of the mouth portion 21 by suitable means, as by the bolts 38 passing through the openings 39 and 40 in the bar of the deflector members. The opening 40 is preferably slotted vertically-so that the inclination of the deflector member may be adjusted. The deflector members are adaptable'to flreboxes of varying sizes since the trajectory of the fuel may be inthe riser 16 onto the table 24 in front of the pressure fluid blast jets 27. The jets 2'7 are in horizontal alignment and project the fuel forwardly in a flattened stream. -The nozzles at either end of the battery slant toward the sides of the firebox causing the flattened stream of fuel to flare outwardly as it is projected into the firebox. The direct action of the blast, which is preferably steam, distributes fuel evenly over the firebed except to the rear corners. The novel deflector members 34, 34a provide means for intercepting a portion of the fuel and deflecting it to the rear corners, thereby insuring an even distribution of fuel over the entire firebed. A portion of the fuel projected forwardly is intercepted by and impinges against the apron 37 and its path follows the contour of the apron. The deflectors are adjustable into the fuel stream and are arranged to intercept only the upper portion of the fuel stream. By varying the inclination of the deflectors to intercept more or less of the fuel, heavier or lighter firing of the rear corners of the firebox may be accomplished.

My novel deflector means is simple in design and construction, easily and cheaply manufactured, comparatively small and light and consequently, easily removable and replaceable. By means of our novel deflector arrangement, the steam blast and the stream of fuel protect the deflector members from the direct heat of the fire in the firebox and constitute a cooling means, thereby prolonging the life of the deflector means. This arrangement also permits of having a lower firing line and produces an even distribution of fuel over the entire firebed.

I claim:

1. In a mechanical stoker in combination with a firebox having a backwall and a firing opening therein, a fuel casing communicating with said firing opening, means in the floor of said casing for projecting a flattened stream of fuel forwardly into said firebox in aerial paths, means comprising a pair of spaced deflectors above the path of the fuel secured to the respective side walls of said fuel casing and including upstanding walls arranged in the path of the fuel for in-, tercepting side portions only of the fuel stream and distributing the intercepted fuel to the rear corners of saidfirebox.

2. In a mechanical stoker in combination with a firebox having a backwall and a firing opening therein, a fuel casing communicating with said firing opening, a table having a flat unobstructed top surface forming a forwardly extending floor portion of said casing, means rearward of said table for projecting fuel forwardly thereover into said firebox in a flattened flaring strea n,

a deflector above said fuel stream fastened at its rearward end to a wall of said casing, the forward portion of said deflector member having a fan shaped horizontal surface with an apron depending from its forward edge for intercepting a side portion only of the fuel stream and distributing the intercepted fuel laterally.

3. In a mechanical stoker, the combination of a firebox having a backwall and a firing opening therein, a fuel casing communicating with said firing opening, a fuel receiving table having a fiat unobstructed top surface forming an extended floor portion of said fuel casing, a distributor head disposed rearwardly of the table, jets in said distributor head directed to issue a blast of pressure fluid over all parts of the firebox except the rear corners whereby fuel is projected to all parts of the firebox except the rear corners, a pair of spaced deflecting members mounted each on a respective sidewall of the casing above the plane of said plate and extending forward of said plate, said deflecting members being arranged to intercept the opposite side portions of the fuel stream and to deflect such portions of the fuel laterally to the rear corners of the 4. In a mechanical stoker, the combination of a firebox having a backwall and a firing opening therein, a fuel casing communicating with said firing opening, a fuel receiving table in said opening arranged to receive fuel from said casing, the forward end of said table terminating rearwardly of the inner wall of said backwall, a distributor head disposed rearwardly of the table, jets in said distributor head directed to issue a blast of pressure fluid over all parts of the firebox except the rear corners whereby fuel is projected to all parts of the firebox except the rear corners, a pair of spaced deflecting members mounted each on a respective sidewall of the casing above the plane of said plate and extendingforward of said plate, said deflecting members being arranged to intercept the opposite side portions of the fuel stream and to divert such portions of the fuel laterally to the rear corners of the firebox.

5. In a mechanical stoker, the combination of a firebox having a backwall and a firing opening therein, a fuel casing communicating with said firing opening, a fuel receiving table in said opening arranged to receive fuel from said casing, a distributor head disposed rearwardly of the table, jets in said distributor head directed to issue a blast of pressure fluid across said table and over all parts of the firebox except the rear corners whereby fuel is projected to all parts of the firebox except the rear corners, a pair of spaced deflecting members mounted each on a respective sidewall of the casing above the plane of said plate and extending forwardof said plate, said deflecting members being arranged to intercept the opposite side portions of the fuel stream and to divert such portions of the fuel laterally to the rear corners of the firebox and means for varying the inclination of said deflecting members and securing said-vanes in any one of a number of positions. HOWARD P. ANDERSON.

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