US916309A - Pump for exhaust-steam and feed-water. - Google Patents

Description

W. 'I'. HARRIS. PUMP EOE EXHAUST STEAM AND EEED WATER.

APPLIUATION FILED JUNE 24, 19'7.

Patented Mar. 23, 1909.

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PUMP PoR EXHAUST STEAM AND EEED WATER. APPLIOAIION FILED JUNE 24, 1907. 916,309.V Patented Mar. 23, 1909.

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UNITED STATES "PATENT OFFICE.

PUMP .fEORiEXI-IIIS T-.STEAM .AND FEED-WATER.

To allwl/omfit' may .concerns lBe itknown thatLI, `WILLIAM T JHARRIs,a

.citizen oi'y the'lUnited States, residing atfLouisville, in thefcounty of AJefferson-andStateol invention.

`Figure 1 is. an axial section of a pump embodying f my invention .and provided with a Ysteam engine vfor operating the same;.Fig. 42 .is a section online 2-201' Fig. 1, and Fig lan elevation zof the ypump, .mechanically driven.

In .the drawings, indicatesapump cylinder having a ,piston 111 .mounted therein, therod 12 .oil saidpiston extending through the heads of the cylinder, through desirable Arranged Yin :alinement With cylinder 10'is a smaller cylinder .14.having apiston15carried`by the extended rod 12. The cylinder Y1;1.is.provided .with suitable inlet'valves 16 Whichcommunicate with a pipe ,17 .leadingfrom the .Water tank, and with suitable outlet valves .18 Whichlead .to an eduction pipe 19. Ripe 19 delivers to a `passage 20 Which leads to appair of nozzles21 and. 22 which are` directedtoward.inlet valves Y 23 and 24, respectively,.ior thev opposite ends of cylinder 10, the saidnozzles 21and .22

to the eduction pipe 28 which leads to the boiler.

steam engine 30, as shown in Fig. 1. the piston rod 12 is driven by the steam eni gine, as shown, I prefer to exhaust said engine through a pipe 31 which delivers to an aspirating nozzle 32 arranged in the Water supply pipe 17. The engine 30 may be driven by exhaust steam from the locomotive.

ASp.eclE-lcaton' of Letters Patent.

n 2 .the other .pump and placedtode The piston rod 12 may be reciprocat-ed by, means of an eccentric, Aor other mechanicall driving train, ormay'bedriven bymeans of ay Then Patented March.23, 11909.

In operation: reciprocation of thepiston rod 12 lWill cause piston '15 to draw Water from `pipe V17 .into cylinder :14 .and 'to 'dis- .clLarge the .same throughvalves 18 i. and Vpipe 19 tonozzles`21.and 22. 'The exhaust steam from y.theengineis delivered to chamber throughpipe26and a-.stream of Water Willv be directed by said nozzles against the inlet valves 23 and 2,4, Vand zacting against that valve .Whichis freeto bemoved'by reason of the particular direction of movement ofthe .piston'1.1, Will have an :aspiratingr eiiiect upon the exhaust steam in .chamber 25 and -Will draw said .exhaust steam .into cylinder '10 `lromtwhence `it is ejected through valves 27 to the boiler28. The exhauststeam from the Aengine is also saved 'by passing into Vthe Water streamgoing ithroughpipe `1'7.

In orderltoavoid the useoi' springs lepreiertoarrange.thepiston rod 12 vertically, as shown in the drawings, this arrangement making the aXes oi the various valves'vertical. lViththisfarrangement, and' in order to properly'equalize:the loW from the nozzles 21and22 I deem it advisable-to .make the nozzle21 somewhat smaller than .the nozzle 42.2.so that there will be a suihcientrestrietion .to produce anequaliiowirom the tWonozzles. .The Water cannot accumulate yin the .lowerpart o1 Vchamber2`5 to anygreat extent because-.it Willbe drawn in tothe cylinder 1() .by the action of piston 11. It Willbenoticed that, when the engine 30 is driven by exhaust steam, .no energy (beyond ythat used ordinarily)iis drawn Vfrom theiboiler andnthat there vis suchainixture oi'exhaust steam and vfeed- Waterthat theieed Water is'heate'd to a high degree before entering theboiler.

I claim as my invention:

1. The combination of a pair of pumps, `eachhsWingsuitablelinlet and outlet valves, a supply pipe leading'into one of saidpumps, a dischargepipe leading from said pump into iver .a jet `directly againstthei inlet valves ofsaid other pump'in suchmanner as to .tend to opensaid valves,. a dischargegpipe'for said othergpump, and a vapor supply pipe leading to the inlet valves of said other pump.

2. rThe combination of a air of pumps, each having suitable inlet and) outlet valves, a supply pipe leading into one of said pumps, a discharge pipe leading from said pump into the inlet chamber of the other pump, aspirating nozzles placed at the discharge end of said discharge pipe and close to the inlet Valves of said other pump. in such mannerV that loW from said nozzles Will operate against said valves to open the same, a discharo'e pipe for said other pump, and a vapor supptly pipe leading to the inlet Valves of said other pump.

3. ln an apparatus of the class described, the combination of a pair of pumps, one discharging into the other, a supply pipe for one of said pumps, a discharge pipe leading from said pump to the other pump, a discharge pipe for said other pump, a Vapor supply pipe also leading into said other pump, a steam engine for operating said pumps, and an exhaust pipe leading from said steam engine and delivering` into the supply pipe oi' the first pump through an aspirating nozzle.

l. rlhe combination of a pair of pumps, each having suitable inlet and outlet Valves, a supply pipe leading into one of said pumps, a discharge pipe leading from said pump and delivering against the inlet Valves of the other oi said pumps through aspirating nozzles, a discharge pipe for said other pump, a Vapor supply pipe leading to the inlet valves ol said other pump, a steam engine for operating said pumps, and an exhaust pipe leading from said steam engine and delivering into the supply pipe el the iirst pumpthrough an aspirating nozzle.

5. rlhe combination, lwith a pair of 'pump cylinders, one smaller than the other and arranged in tandem, a piston rod passing through said cylinders and carrying a pair ol?l pistons fitting the two cylinders, inlet and outlet valves for the smaller cylinder, inlet valves for the larger cylinder, outlet valves therefor, a supply pipe for the smaller cylinder, a discharge pipe leading from the smaller cylinder, a discharge pi )e leading` from the larger' cylinder to the in et Valve chamber of the larger cylinder and a Vapor supply pipe leading into the inlet Valve chamber of said larger' cylinder.

6. rl`he combination, With a pair of pump cylinders, one smaller than the other and arranged in tandem., a piston rod passing through said cylinders and carrying a pair of pistons fitting the two cylinders, inlet and outlet valves for the smaller cylinder, a pair of inlet valves for the larger cylinder, outlet Valves therefor, a supply pipe for the smaller cylinder, a discharge pipe leading from the smaller cylinder to the inlet valve chamber of the larger cylinder, a discharge pipe leading from the larger cylinder and a vapor supply pipe leading into the inlet Valve chamber of said larger cylinder.

7. The combination With a pair oli' pump cylinders, one smaller than the other and arranged in tandem, a piston rod passing through said cylinders and carrying a pair of pistons litting the two cylinders, inlet and outlet Valves for the smaller cylinder, inlet valves for the larger cylinder, outlet Valves therefor, a supply pipe for the smaller' cylinder, a discharge pipe leading from the smaller cylinder to a pair of aspirating nezzles arranged Within the inlet Valve chamber ol' the larger' cylinder, a discharge pipe leading from the larger cylinder and a Vapor supply pipe leading into the inlet Valve chamber of said larger' cylinder'.

8. rlhe combination, with a pair ol pump cylinders, one smaller than the other and arranged in tandem, a piston rod passing through said cylinders and carrying a pair of pistons 'fitting the two cylinders, inlet and outlet valves for the smaller cylinder, inlet valves for the larger cylinder, outlet Valves therefor, a supply pipe for the smaller cylinder, a discharge pipe leading from the smaller cylinder' to an inlet Valve chamber of the larger cylinder and directed toward the said inlet valves, a discharge pipe leading from the larger cylinder and a vapor supply lpipe leading into the inlet Valve chamber ol? said larger cylinder.

The combination, with a pair of pump cylinders, ene smaller than the other and arranged in tandem, a piston rod passing through said cylinders and carrying a pair oi pistons fitting the tufo cylinders, inlet and outlet valves for the smaller cylinder, inlet Valves for the larger cylinder, outlet valves therefor, a supply pipe lor the smaller cylinder, a discharge pipe leading from the smaller cylinder to a pair of aspirating nozzles arranged Within the inlet Valve chamber oi the larger cylinder, a discharge pipe leading [from the larger cylinder, a vaporsup'ply pipe leading into the inlet valve chamber olg said larger cylinder; and a steam engine connected to the piston rod ier operating same.

in Witness whereof, l have hereunto set my hand and seal at lndianapolis, indiana, this twenty-first day oi June, A. l). one thousand nine hundred and seven.

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