US421524A - Sylvania - Google Patents

Description

A. SCHMID s; J.- GQBEGKPELD.

(No Model.)

GAS ENGINE.

No. 421,524. Patentd Pebl 18, 1890.

VRQQ QS su @Wi/imam@ UNITED STATES g PATENT OFFICE.

ALBERT*SCllMII)- AND JOHN CI'IARL'ES BCKFELD, OF LLEGIIENIY, PENN- 'SYLVNLL4 GAS-'ENGIN El..

I SPEcIFICAVTION'forming part of Letters Eatent No. 421,524, dated February 18,- 1890.

Application filed July 12, 1889. Serial No. 317,278.I (No model.)

To all whom 'may concern."

Be it known that4 live', ALBERT SCH-MID, a

i citizen of the, Republic of Switzerland, and

JOHN: CHARLES BEeKrELD, a citizen of the United States, both residi-ng atAlleghcny, in the county of Allegheny and State of Pennl Sylvania, have invented certain new and'useful Improvements in Gas-Engines, of which the following is a specification, reference being had to the drawings accompanying and forming a part of the same.-

This invention relates to gas orair and gas engines ofthe type known as continuousto be used Iin, 'conjunction With the expanded combustion engines,'and more vparticularly to large engines of said type,}which require the application of force from some independent'source-sueh as a steam-boilor-to start them in operation. i

The object of the invention isv primarily to increase the efficiency-otv such engines' by utilizing the 'waste hetiromthe combustion of the gases to vaporiz'e water or other iuid products of combustion in operating the engine;` secondly, to dispense with an independent steamiboiler for furnishing the steam to sta'rt the engine, and,rlastly, to improve the engineby'utili'zing'as 'much as possible of the heat developed iny the operaticnof the.

engine and applying it to assist in furnishing the driving-power. 3

We have illustrated these improvements in the accompanying drawings in connection with a gas-engine of special character. Any engine, howevenadapted to be operated bya const-ant expansion of gases such as takes place in continuous-combustion engines may be used; We therefore omit a detailed de scription cf'the engine proper, deemingtit sufficient to say that the special form shown herein is constructed in .substantially the' manner described in an application of J. Charles Beckfeld and Albert Schmid, filed of even date herewith, and serially numbered 317,277. Referring to the drawings, the figure 1s a view 'in side elevation and part section of the entire system or combination of all the parts and devices pertainingr to our invention.

Let A designate the gas-enginc proper; B, a pipe from the street-11min or other supply of gas, through which gas is admitted or drawn into the engine under one of the pistons and, together with a proper proportion of air, is subsequently forced through a pipo or tube C into a combustion-chamber D, whore it is .ignited and burned.-

E isthc exhaust from the, engine, through which the. products of combustion, after having done their work,'are expelled.

1,1 is a pipe from a water-main or othersupply and connecting with a- Wator-jaeket surrounding t'he cylinders and working parts of' the engine. 1

F is the discharge-pipe from the walterjacket. It empties into a: tank G, from whence, by a small pump ll, driven by an eccentric on the main shaft ot' the engine, it is forced yinto the chamber I. The exhaust-pipe E runs through this chamber, being coiled therein, so that the-heat from the exhaustgases is imparted. to the walter therein,

which hasalready-been warmed inthc waby a valve c. The chamber I communicates ,with the engine cylinders orpipes M through a pipe 0. l

The combustion-chamber D contains a series of burners L, supplied with gas from the p The pipe C from the engine is'also provided with a series of burners' D', fr the combustion of the mixed gas and air supplied by the engine. 'lho pipe l,'which conveys gas from the main to' t-he burners L, is provided with a check-Valve K', to prevent back-'pressure in the mains in the event of a rise in pressure in the combustion-chamber. y

, The voperation ot" this device is as follows: 'lhc' gas from the mainis admitted to the burners L and ignited.. The door R is open while this combustion is taking place, and thc valve e is also open, so that a draft is provided through the combustion-chamber. When sufficient steani has thus been generated in the boiler or chamber J, the engine is started. lVhen by thc operation of the engine a suppl y of airand gas is forced through the pipe C and the burners G', it is ignited and the door B and valve e are closed, and the connection with the gas-main cut ott. The expanded products of'conibustion, together with the steam generated by the combustion entering the engine-cylinders then maintain the engine in operation.

It will be seen that by the construction above described provision is made in every practicable way of utilizing the waste heat and econo'mizing power. The devices which enter into the combination ,which our invention involves may be'greatly .varied in con? struction, and we do not limit ourselves to the special construction shown, as Willbe seen 'from the subjoined claims.

It `vill be seen that the construction above described obviates the necessity o f an indeendent boiler or source of power for starting the engine, while the steam generated in the chamber .T tot only supplies the necessary `That We clairn is-. 4 1. The combination, with an engine of the kind described, of a boiler o'r water-chamber, and a combustion-chamber inclosed or surrounded thereby, connections from both chambers to the engine, and two sets of burners contained in the combustiorechamber, one set bei-ng suppLed by a gas or fuel independently of the engine, the other being fed by gas or fuel by ti e operation o1.' the engine, and means forcontrolling the supply of fue to said burners, as setforth.

2. The combination, with an engine of the kind described, of a Water-chamber or boiler, and a combustion-chamber inclosed or surrounded thereby,connections from both chambers to thc engine, two sets of burners conlubrication',but assists in driving the engine.-

tained in the combustion-chamber, and pipes' or tubes supplying gas or similar fuel to said (burners, one leading direct-ly from a gas-main or source of supply, the other-'being con-V nected with a pumping-cylinder-in the en-' 4. The combination, with an engine of the kind described, of` a steam boiler or generator connected with the engine-cylinders, a combustion-chamber inclosed or surrounded by the boiler and provided with draft-passages capable of being closed air-tight, two sets of `burners in thecombustion-chamber, one conf nected with a supply of gas alone, the other with a supply of air and gas under pressure, as set forth.

5. The combination, with an engine of the kind described, of a water-chamber o'r boiler, a combustion-chamber inclosed or surrounded by the same, a feed-water chamber connected to the boiler, and the exhaust-pipe arranged to heat the water in said chamber as setforth.'

6. The combination, with the cylinders of an air and gas engine, of a combined 'boiler g and combustionchainber, valve-controlled connections -for thesteam and expanded gases between the cylinders and the saidchambers, and independent sourc'fesj of heat for generating thestearn, as herein set forth. 7. The combination, with the cylinders of an air and gas engine, of a boiler for generating steam connected therewith, a combustionchamber provided with dra'ftpas sages closing air-tight, and also connected with said cylinders, and two sets of burners in the combustion-chamber, one adapted to be supplied with gas or similar fuel and the other with a mixture of gas and air.

ALBERT SCI-IMID.4 JOHN CHARLES BECKFELD.

iVitnessesz' J. M. TATE; J r., W. D. UPTEGRAFF.

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