US1836747A - Locomotive - Google Patents

Description

A. W. BRUCE Dec. 15, 1931.

5 Sheets-Sheet INVENTOR H/frea Bruce 0. 'ATT NEY I! r llllllllllllllllllllllllllll ll i & i mm 3 CE CE mm N 0 Dec. 15, 1931.

A. w. :BRUCE LOCOMOTIVE Filed Oct. 20, 1930 3 Sheets-Sheet 2 INVENTOR BY fly/ed W. Bruce ORNEY A. W. BRU CE Dec 15, 1931.

LOCOMOTIVE Filed Oct. 20, 1950 5 Sheets-Sheet O 0 O O O O 0 O INVENTOR BY fl/fr/ N Bruce Patented Dec. 15, 1931 umren PATENT ALFRED W- BU E O EW YORK N- LocoMo'rrvE Application filed Octoheri20, 193.0. Serial No. 489,827.

With such use a maximum efficiency ande onomy may be ac ved y e ec n positive circulation through the pipes and drums in transverse planes, This arrangement affords the shortest possible length for a complete water circuit, atithe same time obviating interference inthe difierent water circuits.

In my prior co-pending application Seerial Number 385,654 filed August 13, 1929 for improvements in high pressure locomotives, I have exemplified vhigh pressure steam generator in which circulation pipes,

and drums are so arranged in the fire box and combustion chamber to effect the aforesaid transverse circulation throughout the length of the same.

An object of the present invention .is to provide a locomotive which is designed :for the use of high pressure steam in which the advantages of transversecirculation may be realized in the forward barrel portion of the same as well as inthe fire box and combust-ion chamber. (while at the same time retaining a boiler design suitable foruse on locomotives following the present day practice.

A furtherobjectof the invention is to provide a locomotive with the aforesaid characteristics embodying a construction which will have the advantage vof simplicity and ruggedness while at the same time being adaptable for any desired wheel arrangement. A r

A further object of the invention isto provide a structure such as the aforesaid which lllemp y nimi m i e t-c m nd Wa e drums SQ ang a o a f a maximum steam space while at the same time being able to collect steam from chambers where there is no direct ebullition.

A further obj ectof the inventionis to provide a locomotive of the aforedescribed type in which the forward section may be formed integrally with or separately from the fire,

box section, as may be desired, and said sections will be so positioned that the same water level will be maintained in both, thus permitting a single water feed attachment f r t s me- Inlthe accompanying drawings, Fig. l is a sideelevation of a locomotive with the boiler and firebox jackets removedshowing this invention applied thereto; Fig. 2 is a plan view of the same Fig. 3 is a sectional View taken on the line III+III of Fig. 1; Fightis a sectional view taken on the line IV-fIV of Fig. 1; Fig. ,5 is a diagrammatic view showing, on the left hand side, the circul tion through the fire boxvand,von the right hand side, the circulation through the barrel portion; F 16 is a back view on an enlarged .scaleofthe structure illustrated in Fig. 1; and Fig. 7 is an isometric view on an enlarged scale of the, central header and parts of certa n o i atte da me ts- I thep n ti fth n ti n, referring ,descriptivcely to the specific embodiment thereof which has been selected for exemplification herein,

the locomotive comprises a forward fire tube section 10 and a rear fire boxsection 11. It will be understood that throughout the specification and claims' where, the words the box or fire box section are used, the same are intended, unless other-. wise specified, to include the fire box section alone ofthose locomotives which do not include a, combustion chamber section, and to include both the fir'e box and the combustion chamber sections .of thoselocomotives which have a combustion cl lam ber between the tire box and the fire tube section.

The firebox section vcomprises two bottom water drums, 12, the rear half of a central up per steam drum 13, which extends the length of both the fire box section and the fire tube section and the rear half of two outer upper steam drums, 14, which likewise extend the length of both the fire box section and fire tube section one disposed on each side of the steam drum and parallel therewith. Within the fire box, upfiow circulation pipes 15, connect the bottom drums 12 with the central upper drum 13 and downflow circulation pipes 16, connect the outer upper drums 14 with the bottom drums 12; the combustion chamber 17 being within the upflow pipes. A rear header 18 (Fig. 6) is provided at the end of the drums, and a fuel door 19 is formed there-' in. The header is connected with the lower drums 12 and the upper central drum 13. Cross pipes 20 connect the outer steam drums 14 with the central drum 13. The upflow pipes 15, each have a lower substantially vertical portion at the side of the fire box and an upper diagonal portion which'overlies the top of the fire box. These upfiow pipes are arranged in rows or banks and so spaced and staggered with relation to each other as to afford the greatest possible exposed surface and to cause the gases of combustion to travel around them in a tortuous path, thus obtaining a maximum thermal efficiency from the gases.

The forward part or fire tube section of the generator, comprises a main cylindrical barrel 21 of relatively large diameter, having fire tubes 22 arranged within the same passing longitudinally therethrough. The forward half of the upper central steam drum 13, which drum, as hereinbefore stated, extends the length of both the fire box section and fire tube section, passes above the barrel 21, parallel therewith and is connected to the same by vertical passageways 23. Likewise the forward half of the outer upper drums 14, which drums, as aforesaid, extend the length of both the fire box section and fire tube section, are disposed above the barrel one on each side of the central drum, and parallel therewith as aforesaid and are connected to the central drum 13 by horizontal passageways 24. A longitudinal drum 25 is located centrally below the barrel 21, parallel with the same. Downfiow pipes 26, are connected to the bottom of the upper outer drums 14, and have upper substantially vertical portions which extend downwardly along the sides of the barrel, and lower diagonal portions which pass under the barrel, their lower ends being connected with the drum 25. Vertical passageways 27 connect the lower drum 25 with the barrel 21.

A central header 28 (Fig. 7 is disposed between the forward section 10 and the tire box section 11. The central upper drum 13 passes through the header which serves to 7 hold it in its proper relative position.

It will of course, be notedthatthe central drums as well as the outer upper drums 14 may be either single continuous integral members as described or may comprise two separate drums suitably connected together. The header 28 is of such shape that the outer upper drums 14 pass on the outside of the 5 a rear tube sheet for the barrel 21, and the 4 upper central drum 13, and the lower fire box drums 12 are provided with openings in their sides within the header, (as shown in Figs. 3 and 7), so that the header establishes communication between the barrel, the upper central drum and the lower fire box drums. The water passes from the forward section to the fire box section through the rearmost downfiow pipes 26 which are connected to the lower water drums 12. The boiler feed is introduced into the lower central drum 25 of the forward section by a pipe 29 connected thereto.

A superheater 30 of any preferred or usual design is provided as indicated in Fig. 1 and in the usual way it is connected'at the front of the forward section 10 to a header 31, and has reaches 32 extending intothe fire tubes 22.

The operation of the improved locomotive is as follows: Feed water enters the lower central drum 25 from the pipe 29 and passing through the upward passageways 27 circulates upwardly around the fire tubes 22 when heated thereby, continuing upwardly through the passageways 23 into the central upper drum 13 it passes outwardy through the passageways 24 to the outer upper drums 14 and then downwardly through the vertical pipes 26 back to the lower central drum 25, thus completing the transverse circulation through the forward section of the generator. As the water passes from the front of the forward section back to the rear of the same the sediment therein is precipitated in a decreasing amount from front to back, so that only a very small amount will reach the fire box section. Passing from the downflow tubes, 26 the water enters the lower drums 12 of the fire box section. Here a similar transverse circulation is effected, the water passing upward through the tubes 15 to the upper central drum 13 through the passageways 20 into the outer drums 14, and then downwardly through the outer tubes 16 back into the lower drums 12. It will thus be noted that the water circulates positively in transverse planes throughout the entire length of both the fire box section and the forward bar- .rel portion of the locomotive. As the most violent ebullition in both sections, occurs in the central upper drum 13 the steam is withdrawn from the outer upper drums 14 where and connecting means between a receiving member for the downfiow units of the fire box section and a downfiow unit of the fire tube section.

10. A locomotive steam generator comprising a rear fire box section, and a forward fire tube section, both of said sections comprising a downfiow and upflow unit arranged to effect the circulation of water therethrough transversely of said fire tubes in a vertical direction, a receiving member for the upflow units of both sections comprising a single continuous passage longitudinally across both of said sections connected with said upflow units, receiving members for the downflow units of each of said sections connected with said downfiow units, and connecting means between a downfiow receiving member of the fire box section and a downfiow unit of the fire tube section.

11. A locomotive steam generator comprising a rear water tube fire box section, and a forward fire tube section, both of said sectionshaving a downfiow unit and an upflow unit for the circulation of water therethrough in transverse planes, and a header disposed between said sections connecting the same and establishing communication therebetween.

12. A locomotive steam generator comprising a rear water tube fire box section, and a forward fire tube section, both of said sec tions having a downfiow unit andan upflow unit, a receiving member for the upfiow units of both sections connected thereto, and separate receiving members for the downfiow units of each of said sections respectively connected thereto, arranged to effect the circulation of water therethrough in transverse planes, the receiving member for the upflow units of both of said sections comprising a' single continuous member extending the length of both of said sections, and a header disposed between said sections and providing connecting means for said sections and establishing communication therebetween.

13. A steam generator for a locomotive comprising a rear fire box section, and a forward fire tube section, both of said sections having upflow and downfiow units, receiving members for the upflow units of said sections,

and receiving members for the downfiow units of said sections, the said receiving members for the upflow units of both sections being disposed with relation to each other so as to effect a common water level.

14. In a locomotive, a steam generator comprising a barrel member having fire tubes passing therethrough, a drum disposed above said barrel member, a water drum disposed below said barrel member. a row of downflow tubes effecting communication between the upper drum and the lower drum, and connecting passages between the barrel member and the upper and lower water drums, to

effect the circulation of water through said generator in opposite directions in substantially vertical transverse planes, the said barrel member constituting the upflow passage of said circulation.

15. A steam generator for locomotives comprising a barrel member having fire tubes section comprising a barrel member having fire tubes passing therethrough, a bottom water drum disposed below said barrel member, means connecting said bottom water drum to said barrel member and establishing communication therebetween, a central upper steam drum disposed above said barrel member, means connecting said central upper steam drum with said barrel member and establishing communication therebetween, an outer upper steam drum arranged parallel with said central drum, a passage establishing communication between the outer steam drum and the central steam drum, downflow pipes connecting the bottom drum with the outer upper steam drum, the said central upper steam drum extending to and communicating directly with the said fire box section, and means disposed between the two sections for effecting communication between downfiow pipes of the forward section and the said fire box section.

- 17. In a locomotive, a steam generator comprising a rear fire box section comprising a lower water drum, an upper steam drum, a 'row of upfiow pipes leading to the upper .drum, the said upper steam drums of both sections being connected to form one continuous passageway, and means disposed between ample surfaces for steaming and a maximum volume for storage. The steam is carried in the usual manner through the dry pipes-33'to the super-heater header 31 and so on through the super-heater.

It will be noted that in the arrangement aforedeseribe-d the fire box and barrel sections are adapted to be installed or removed from the locomotives as one complete unit or if desired may be constructed in two separate sections. The invention thus provides a high pressure locomotive which is both simple and rugged in constructiomthat is economical to manufacture and maintain, and which affords a highly efiicient apparatus in that a material saving in fuel and water may be effected by the use of the same.

While there has been hereinbefore described and illustrated one of the preferred forms of construction of the invention it will be apparent that many and various changes and modifications in procedure, form, arrangement, and construction of same may be resorted to and, that the invention is not 'limited, therefore, to this particular embodiment disclosed, but includes all such changes and modifications as come within the spirit and scope of the same as defined in the appended claims.

The invention claimed and desired to be securedby Letters Patent is:

1. In a locomotive, a steam generator comprising a barrel having fire tubes passing longitudinally therethrough, and means disposed outside of said barrel and connected thereto to effect the circulation of water through said barrel transversely of said fire tubes in a vertical direct-ion.

2. In a locomotive, a steam generator comprising a barrel having fire tubes passing longitudinally therethrough, and a plurality of water tubes associated therewith to effect the circulation of the water through said bar- :reltransversely of said fire tubes in a vertical direction.

3. In a locomotive, a steam generator com- .prisinga water tube fire boX sect-ion, and a forward fire tube section, said fire tube section comprising a barrel having fire tubes zpassing longitudinally therethrough and a plurality of water tubes outside of said barrel and connected thereto, arranged to effect the circulation of water through the forward section transversely of said fire tubes in a .vertical direction.

4. A locomotive steam generator comprising a water tube fire box section, and a forward fire tube section, said fire box section comprising means for circulating water therethrough in opposite directions in substantially vertical transverse planes, and said fire tube section comprising a barrel having a plurality of fire tubes passing'longitudinally therethrough and means disposed outside of said 'barrel and connected thereto to effect the circulation of water through said section in opposite directions in substantially vertical transverse planes.

5. In a locomotive, a steam generator comprising a barrel having fire :tubes passing .therethrough, an upper steam drum above effecting the circulation of water through .SZIId'gBHEFELl/OI mopposite directions 1n substantially vertical transverse planes.

6. In a locomotive, a steam generator comprising a plurality of cylinder members p0- sitioned in at least-three different horizontal planes,-a cylinderiof the middle plane having fire tubes passing horizontally therethrough, connecting passageways between the fire tube cylinder and cylinders of the other planes, and a plurality of substantially vertical tubes connecting said upper and lower cylinders, to effect the circulation of water through said generator transversely of said fire tube cylinder in a vertical direction, said fire tube cylinder constituting an upflow passage and said tubes constituting downfiow passages.

7. In a locomotive, a steam generator'comprising a rear fire box section,and a forward fire tube section,;said fire tube section comprising a plurality of'cylindenmembers p0- sitioned in at least three different horizontal planes, a cylinder ofthe middle plane having a plurality of fire tubes passing longitudinally therethrough, connecting passageways between the fire tube cylinder and the cylinders of the other planes, and a plurality of substantially vertical water tubes independently connectingtheupper and lower cy1= inders arranged to effect the circulation of water ='th:rough said fire tube cylinder and water tubes in opposite direct-ions in substantially vertical planes transversely of said fire tubes.

8. Alocomotive steam generator comprisin-ga rear water tube fire box section, and a forward fire tube section, bothof said sect-ions having downfiow and upflow units arranged to effect the circulation of water therethrou-gh transversely of said fire tubes in a vertical direction and a receiver for their upflow units comprising a single continuous memberextending the length of both sec- :tions.

9. A locomotive steam generator comprising a rear fire box section,and a forward fire tube section, both of said sections comprising downflow and upfiow units arranged to effect the circulation of water theret-hrough transversely of-said fire tubes in a'vertical direction :a receiving member for'the downfiow units of the rear SGCtlOD, connected thereto,

:a-receiv-ing inember for the downfiow units :of the forward section, connected thereto,

gen

the two sections for effecting communication between the said downflow tubes of the forward section and the said lower drum of the fire box section, whereby water will be circulated through both of said sections in transverse planes.

18. In a locomotive, a steam generator comprising a forward fire tube sectlon, and a rear fire box section, a longitudinally and centrally disposed upper steam drum extending the length of both of said sections, a longitudinally disposed upper steam drum at the outside of said centrally disposed steam drum extending the length of both of said sections, means connecting said outer drum and said central drum, lower water drums for both of said sections, downflow and upflow pipes for the said fire box section between the said upper and lower drums connecting the same, downflow pipes between the outer upper and the lower drums of said fire tube section, a barrel member containing fire tubes disposed between said upper and lower drums of said fire tube section, means connecting said barrel member with said central upper drum and said lower drum of the forward section, said barrel member constituting an upfiow passage for said forward section, and a header disposed between the two sections, the said upper central steam drum passing therethrough and the said lower water drums of the fire box section and the barrel member of the fire tube section being connected to said header, and at least one of the downflow pipes of the forward section being in communication with a lower water drum of the fire box section, whereby water will be circulated through both of the said sections in substantially vertical transverse planes.

ALFRED W. BRUCE.

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