US2495864A - Smoke consumer for locomotives - Google Patents

Description

Jan. 31, 1950 M. J. PEKICH SMOKE CONSUMER FOR LOCOMOTIVES Filed Sept. 28, 1946 invention relates locomotives.

Patented Jan. 31, 1950 r 2,495,864 H v SMOKEGONSUMER FQRLQCOMOTIVES Michaela.rekimnr kiymnqy. I Application September 28, 1946,.ser'iaiNd-1o0n-04 .1' Cl aun.

toasmoke consumer for .It is anobject of the present invention; togproyide asmoke consumer forlocomotives which will drawcthe smoke before it passes to thezstack and return the same to the fire box for reburning.

It is another object of the invention to provide a device which serves to supply cold air to the fire box and wherein the smoke will be supplied with sufficient oxygen to insure its ready burning when delivered to the fire box.

It is another object of the invention to provide a simple and inexpensive smoke consumer for steam locomotives.

According to the invention, the smoke compartment at the front of the locomotive is provided with a pipe for receiving smoke prior to its exit through the regular stack. Forced into this pipe is compressed air for drawing the smoke into the pipe and from this pipe the smoke is delivered to a chamber below the fire box to be forced upwardly through the fuel grate for reburning. To slow down the fire, the smoke filled air can be by-passed through a valve-controlled pipe to the top of the fire and away from the chamber below the fire grate. In the front wall of the locomotive there is provided a shuttercontrolled cold air opening by which cold air for further mixing of air with the smoke can be drawn along with the smoke for delivery to the fire box.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure Fig. 1 is a longitudinal cross-sectional view of a locomotive showing the fire box, fire tubes, and front end compartment housing the device embodying the features of the present invention.

Fig. 2 is a front end view of the locomotive with a portion of the front plate broken away to show further details of the smoke consuming device.

Referring now to the figures, l represents a portion of a locomotive having a fire box II, a boiler I 2 with fire tubes l3 extending therethrough for delivery to a smoke compartment I4 at the forward end of the locomotive. The smoke compartment I4 has a front wall I5 and a stack l6 extending out of the top thereof.

Extending upwardly from the bottom of the compartment 14 is a pipe I! into which excess smoke can be drawn. To effect the movement of the smoke into the pipe I! there is a pipe l8 (cure-=50) leading fromalcompressed air .chamber l9. At the @lower endof .the,p ipe.thereis an internally tapered coupling III from which leads a return jpipefz2.forthesmoker Thepipe 22empties into an air. ttight, compartment 23 under a ,fire grate '24 in the fire box ll carrying a fire pile 25. Fuel is delivered to the fire box II through a door opening 26 having a closure 21. The mixture of smoke and air will accordingly be forced upwardly through the fire grate and the smoke will be further consumed or burned while at the same time fire pile will be supplied with air for further combustion.

When it is desired to slow down the fire a damper 28, in a pipe 29 leading from the chamber 23 and connected with the fire box above the grate, is opened whereby to by-pass the smoke and air mixture to the top of the fire pile.

In the front wall [5, is a large opening 3| having shutters 32 extending thereacross and adapted to be operated by a bell crank 33 pivoted on the rear of the front wall above the opening and connected with a control rod 34 which may extend rearwardly to the engineers compartment located to the rear of the fire box. As the shutters are opened cold air may be drawn in through a pipe 35 leading to the vertically-extending pipe l1. Thus with the present device if maximum combustion is desired added air can be drawn by the compressed device 19 along with the smoke.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claim.

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

In a locomotive having a fire box, a grate in said firebox, and including means forming a closed chamber beneath said firebox and a smoke compartment forward of the locomotive with fire tubes connecting said fire box to said smoke compartment and a pipe connected at one end to the closed chamber and having its other end extended vertically upward into the smoke chamber for conveying smoke from the smoke chamber to the closed chamber for reburning in the fire box, a source of compressed air in the smoke compartment, a second pipe of a diameter smaller than the first pipe connected at one end to said source of compressed air and having its other end extended into the first pipe at one side thereof, said second pipe having its open end within the first pipe directed away from the open end of the first pipe so that air under pressure entering the first pipe and passing therethrough to 3 the closed chamber will cause a partial vacuum within the open end of the first pipe in the smoke chamber to cause smoke to enter the first pipe and be carried to the closed chamber by the compressed air, and a third pipe within the smoke chamber and having one end surrounding an opening formed in the front wall of the smoke chamber so that cold outside air will enter said third pipe as the locomotive moves in a forward direction, said third pipe having itsother end reduced to a diameter less than the diameter of the first pipe and extended into the open top end of the first pipe within the smoke chamber, said third ipe terminating within the first pipe above the point where said second pipe enters the side of the first pipe causing cold outside air to be carried into the first pipe-to mix with the smoke which enters the first pipe to forms. combustible mixture, a fourth pipe, said fourth pipe having one of its ends connected to said chamber,.the

other end of said fourth pipe entering said fire box above said grate, and a valve in said fourth pipe for controlling the amount of smoke to be admitted to saidfire box above said grate.

MICHAEL J. PEKICH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 264,905 Spear et a1 Sept. 26, 1882 635,878 Stapp Oct. 31, 1899 785,035 Dundon Mar. 14, 1905 843,848 Schleyder Feb. 12, 1907 992,123 Fournia May 9, 1911 1,012,484 Wait Dec. 19, 1911 1,990,086

Nelson -1 Feb. 5, 1935

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