US872452A - Internal-combustion power apparatus. - Google Patents

Description

PATENTED DEOAS, 1907. S. A. RBEVE.

'AL COMBUSTION POWER APPARATUS.

INTERN APPLICATION FILED FEB. 7. 1906.

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' UNITED STATES P TENT OFFICE.

SIDNEY A. REEVE, OF

WORCESTER, MASSACHUSETTS, ASSIGNOR TO CHARLES F. BROWN,

TRUSTEE, OF READING, MASSACHUSETTS.

INTERNAL-COIIBUSTION IOWER APPARATUS.

Specification of Letters Patent.

Patented Dec. 3, 1907.

Application filed February 7. 1906. Serial No. 299.889.

To all whom "it may concern:

Beit known that I, SIDNEY A. REEVE, a

citizen of the United States, residing at the following s ecification and accompanyingdrawings ,i ustrate the invention in a form-which I now regard as the best out of the various forms in which it may be embodied.

This invention relates to motive apparatus for developing power from the internal com bustion of fuel where the working fluids are umped or compressed prior to their comustlon by means of pumps located outside of the expansion cylinders or engines.

The principal method-heretofore proposed in such apparatus is' to connect the pumps directly to the main working motor, which is, therefore, obliged to furnish power for working the pumps in addition to the ower supplied'to itsshaft for driving outsi e' machinery, but I have found that many advantages may be derived by either wholly or partially operating the umps from a separate source of ower. finder this latter arrangement it ecomes possible to effect an easy start, to operate the pum s at a higher speed than the main engine i desired and more or less independently of the speed of the main engine, t ereby enablin the pumps and their motor if desired to be made in smaller dimensions because of their higher speed, besides eliminating some diflicult problems encountered in so designing the whole apparatus as to minimize machine friction.

The invention also includes an arrangement of internal combustion power ap aratus to o crate at a high pressure Wine involves t e compression and expansion of the elastic fluid in stages and it further includes the arrangement of the compressing motor or motors in certain novel combinations with the devices for burning fuel and generating steam by contact with water of the products of combustion.

Of the accompanying drawings, Figure 1 represents a diagrammatic elevation of a power apparatus constructed according to my invention. Fi 2 represents a detail (l1a grammatic section of one of the gas-compressors.

1 represents a compound engine of the steam-engine type having a high-pressure cylinder 2, a low-pressure cylinder 3 and an intermediate receiver 4, through which the working mixture passes and is subjected to successive expansions while doing work. This engine is connected to drive the pistons of a gas-compressor cylinder 5 and an air-.

compressor cylinder 6, which are the highstage members of the compressing department.

7 7 are the low-stage air-compressors, recelving atmospheric air through an inlet 8 and discharging the compressed air to the hlgh-pressure compressor 6 through a conduit 9 containing an intercooler 10. 11 11 are the low-stage gas-compressors, receiving gas from a main 12 and discharging the compressed gas to the high-pressure compressor 5 through a conduit 13 containing an intercooler 14. v The pistons of these compressors 7 and llare single-acting and attached to two oppositely moving iston structures shown in dotted lines an connected by a rocking beam 15, which has a pitman-connection with a fly-wheel 16. I

The upper ends of.the moving istonstructures are the pistons of a pair 0 intermittent-combustion motors 17, referably explosive motors. These may ave the general construction, including valves and igniters, of the ordinary Clerk or two-cycle exhaust-port at the end oi the working stroke, and during the same period admits the next working charge while the exhaustport is open. These arrangements being well known are not fully illustrated, as they are merely the preferred arrangement of the separate compressing motor and might be varied if desired. In certain important respects however, the manner of operation of these motors l7 dill'er from the ordinary two-cycle explosive engine.

The charge for the cylinders 17 is received from the low-pressure cylinders 7 and [1 by means of pipes 18 19 containing intercuolers ere,

3'7 38, end-thus it will he seen that this charge before explosion, if the motors 1? are of the compression type, receives a twostsge compression, the first stage being performed by the air and gas compressors 7 11 and the second performed after mixingof the charge in the cylinders of said motors l7 pressure compression work, this arrangeinent'cells for 9. further stage of expension oi the burned charge alter it leaves the motors 17,5rnd accordingly I carry the exhaust of these motors through a pipe 20, generator 2] and pipe 22 intothe receiver 4 0i the main motor 1 to he expcndeiil in the low-pressure cylinder 3 of the main motor. The products of combustion pass downwardly through a pipe 23 in. the generator 21 into pool of water contained in e Wster-pot 2% in the lower art of the generator, Where they impart their hightemperature hes-t to the Water and create it body oi steam which passes upwsrdlir. around the outside oi" the tube together with the products of con'ihustion, end the mixture posses outwardly through the pipe 22. A substantially constant supoly of.

Write is n'iointsined in the Wat-es pct t irough o' pipe 25 und Gen orator 21 ispreierel ly ol the general type soown in my Patent 0. 588,293 and as thus constructed includes a constant pressure burner 26. It further includes en sutornatic regulating device 27 of any suitable character for controlling the compressed air and which are fed to the burner from the low-pressure compressors 7, 11 through pipes 28 29. I thus import to the generator 21 double function which I heheve to be new, viz: that of is cooling chamher for the exhaust gases of the eiiplosion motors 1 7, and also that of a combined burner and cooling chamber for compressed fluids burned constant pressure. The rodncts of combustion from burner miss down vordly tl rough the tube 23 and are quenched in the hotly 5r- Weter in the wstenpot 24- so that the pipe 22 receives from one source and products oi combustion from two sources.

The general arrangement of an explosion motor, and. n low-pressure motor cylinder suhstentislly in the manner described but Without plural combustionendicther speciiic features covered by the potent claims, is made the subject of my cop-eznling enplicstions Ser. Nos. 263 .718, $517M, and Bel-9,019.

In order to avoid loss-of the lowor suitable automatic control.

therein. The generator 32 operates at the nmximun: PIETUIO of the system furnished.

by the high-stage compressors 6 5, While generator 21 operates at the pressure inrnished by the low-pressure compressors 7 11.

34 diaphragm device operating a throttle-valve 35 in the suction gas-conduit 12 and including a diaphragm. Which'receives through a pir 35 the pressure from air-intereooler l0 balanced against a suitable constant pressure such as atmosphere and 5. spring, whereby the relative amount of fuel nniy oe regulated so as to meintein intercooler pressure substantially constant.

in starting the apparatus when no fluids are under compression the motors 17 will first operate as ordinory two-cycle explosive motors from and at atmospheric pressure, drawing uncmnpressed fluids from the intercoolers 37 38. Pressures soon'hegin to socumulcte and permit it heck pressure during the exhaust period of the motors 17. Then constant-pressure ilmne may he started in he generator 21 and the motor l. may he on its low=pressure cylinder. As soon sullicient high-pressure fluids have men eccumuls ted the llsme of the generator may be started and the apparatus will then be in full operation. The action of the burn er 26 not essential to a start however,

and if preferred the generator 21 may be run vithou't ilenie, its output of steam, hot gases from engines 17, and surplus air, if eny, from compressors 7 going" to the low-pressure en gine 3. With this pressure fluid as s. motive power, engine 3 may he started and the constent-pressure corner of generator 32 set in opera-ton, only in that case the Water in pot preferably elreedy not and burner 26 convenient means for getting it so. thermore, burner 2e, and especially its excess n-ir, furnishes o 'inosns for consumingeny unburned charge. which may come over roin the explosir .igines 17.

3 shows llmgr-2mmeticelly, en orrongr-zo'ze. for tholing seversl receptowill meter proper U E 1e explosion cylini e39, e'lil to the higrhpressure cylinder 5 and burner 26 respectively successively covered lay the piston ll seine stroke", while the outlet ones l 7 are edinstei'i so :1 succesits one such motor is not the more gore comp-lessor outlets,

qklitll- I eral aspects of the device being treated in a se arate application, Serial No. 322,204.

have further shown sto -valves 43, 44 in the conduits 9, 13, Spec controlled by a suitable shaft-governor, whereby these conduits are choked down when the speed rises unduly and the pressure-reaction on the regpower of the Also the internal-combustion unit com rised by motor 1 and generator 32 may in a road sense be varied and replaced withan equivalent either of a different type or a variation of the constant-pressure .type without departing from my invention.

What I claim as new and desire tosecure by Letters Patent is:

1. A power apparatus comprising a main motor, a constant-pressure internal-combustion burner for supplying motive fluid thereto, a chargecom ressor for supplying said burner, and an inr ependently-runmng internal-combust ion motor driving said chargecompressor andsupplied with motive fluid from said charge-compressor independently of said burner.

2.. A power system comprising a main motorhaving an internal-combustion burner for sup lying it with motive fluid, a mechanically separate intermittent combustionjcompressing motor, and a charge-compressor operated by the last-said motor and supplying compressed fluid for both motors. 3. A power apparatus comprising a main motor operated by internal combustion of compressed air and fuel, a compressor for supplying'the charge to said main motor, and an explosion motor for driving said compressor, adapted to operate with a charge compressed by said compressor.

ts-A power system comprising high and lowstage serial charge compressors, and two indepemlently-running motors, both operated by the internal combustion of the compressed charge, one of said motors operating the high-stage compressor and the other operating the low-stage compressor.

5. A power system. comprising highstage and :lo\\'stage compressors, ainotor operated by continuous internal combustion of compressed charge and driving one of said compressors, and a motor operated by internal. combustion of compressed charge and operating the other comyessor.

(i. power system comprising a main motor, a (UIlstttllt pltsfilllt internal-coinbustion burner supplying the motive lluid, an inter- For example,

mittent internal combustion motor, and means for supplylng compressed charge to the burner and the intenmttent-combustion charge-compressor driven by the intermittent-combustion motor, and a high-stage charge-compressor driven by the main motor.

7. A' power system comprising high and low stage serial charge-compressors, an internal-combustion motor driving one of said compressors and operated by the combustion of the high-stage compressed fluid, and

the other compressor and operated by the combustion of charge abstracted from between the stages of compression.

8. A power system comprisim a main moburner supplying the same, a high-stage charge-compressor operated by the main mocharge-compressor, and an intermittentcombustion motor drivin said lowstage compressor and sup he by compressed charge from between t e high-stage and lowstage compressors.

9. A power system comprisin a pluralstage' expansion motor operated y internal combustion of compressed fluid,'a chargecompressor to supply the same, and an intermittent internal-combustion motor driving said compressor and exhausting into the first-said motor betweeathe stages of expansion thereof.

10. A power system comprising high and low stage charge-compressors, a constantpressure motor driving one of said compressors, and an intermittent internal-comrbustion motor driving the other compressor, the last-said motor being supplied with compressed charge from between the said compressors and exhausting into the first-said motor.

11. A power system comprising a serialstage expansion motor having an internaleombusti on burner, an intermittent internalcombustion motor exhausting into the firstsaid'motor between the stages thereof,'and means for supplying compressed charge to said burner and motor, including a compressor driven by the intermittent-combustion motor.

12. A power system comprising a pluralstagc expansion motor, and two generators connected respectively to the higher stage and between the stages of said motor and each having a passage for gases of combustion leading to the motor and means for quenching said gases ol combustion with water.

13. A power system comprising a pluralstage expansion motor, two generators connected respectively to the higher stage and between the stages of said motor and having means for quenching products of combustion a second internal-combustion motor driving motor, said means including a low-stage tor, a'constant-pressure internal-combustion tor and supplying said burner, a low-stage with Water, a continuous internal-combustion burner in one of said generators, and an intermittent internal-combustion motor con nected to supply combustion gases to the other generator.

14. A power epporotus comprising e plu rel-stage expansion motor, higlnpressure and low-pressure generators connected respectively to the higher stage and between the stages of said motor and each having means b products ofconibustion with for quenchin Water, a constant-pressure burner 1n the high pressure generator, stage charge-compressing means Whose higher stage supplies said burner, and an explosive compressing motor supplied by said compressing means and driving one of the stages thereof, said motor exhausting into thelow-pressure generator.

15. A power apparatus comprising a motor e enerator for su )lvin the some and 7 a r a 2t weter pot adopted to maintain o pool of Water in the path of the products of combustion from said burner and from said motor, and a second motor opera-ted by the pressure of the nnzrture of stecr'n and products 01 e5 combustion issuing from said wstenpot.

27. A power spperetus comprising an in.- ternol-eombustion motor, and a. compressor driven by and supplying charge or said motor end-for a burner, and hea ing outlets to the two destinations, and means whereby said outlets are opened in succession on the compressing stroke of said compressor.

charge-compressors, e inotor supplied thereby for driving the high-stagecompressor, s motor for driving the low-stege compressor, means controlled by the pressure of output from the low-stage compressor for Varying the power of the motor which drivesit, and means controlled by the speed of the highsta e motor for varying the intake. of the high-stage compressor.

19. A power apparatus comprising highend lowpressure chsrge compressors, on explosion engine charged by the low-pressure compressor, s chamber receiving the exhaust of the engine, outlets lesdin from the lowpressnre compressor to the nigh-pressure compressor and to said chamber, another outlet leading irom the low-pressure compressor to the explosion engine, and means whereby the last-said outlet is opened after the first-said outlets have been closed during the compression period of the lowpressure compressor.

my hand in the presence of two subscribing witnesses, the nineteenth day of January. 19(36.

SIDNEY A. REEVE.

fi itnesses HENRY L. PAR-KER, HENRY L. PARKER, Jr.

18. A power apparatus comprising serial In testimony whereof I have hereunto set.

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