US888243A - Means for regulating the supply of fuel to burners. - Google Patents

Description

fial 888L243. K P'ATENTBD MAX 19a... 1908,,-

.j-L MP. ans FOR REeULA I-m- THE-SUPPLY 0F FUEL TO BURNERS. i

APPLICATION FILED JULY 27. 1901.

1 .lbnsses:

Inventor Hermann Lamp.

:15 feed the fuel to the burner.

' 35to to assist in starting.

l UNITED STATES rarnnr oFFIo ilERMANN unit. or LYNN, MASSACHUSETTS, ASSIGN'ORJ TO GENERAL ELECTRIC COMPANY,;

A CORPORATIbN OF Nl-JW YORK.

MEANS FOR REGULATIN G THE SUPPLY OE FUEL TO BURNERS.

4 chus'etts, have invented certain new and useful Improvements in Means for Regulating the Supply of Fuel to Burners, ofwhieh the following 1s a specification.

When atlash boiler is heated by liquid fuel supplied by a pun ipoperated by the engines,

' some means "18 necessary for maintaining a pilot lightwhen the engine stops: usually a- -small hand pump to forceair into the fuel "tank and thus create sufficient pressure to I Instead of a fuel feed pump. the hand pump may be used to maintain an air-pressure approximately fifty ounds er-'squareinch in the'fuel tank. the ow-of rel being cont-rolled automatically by the boiler pressure. "There are certain practicalobjeetions to these'systems of fuel supply-and the object of my invention is to provide asystem which is automatic in its action and 15 free from all objections.

- In the accompanying drawing I have-illus- 'triited"diagrammatically an embodimentof -'n \y'1nvent1on. v

' Referring tothe drawing by reference nu- -merals.'1 represents the main fuel tank which .30 is always'in free communication with the air.

"and is so situatedthat fuel will flow therefrom'by gravitv to the burner. The burner is not ordinarily supplied with fuel-under gravity feed, but sufficient fuel will flowthere- By reason of the- -main tank being subjected to atmosphericpressure only I can add fuel to the supply at- "any time without in any way changing the condition of the fire. and danger from fire .40 caused by leaks is reduced to a minimuinI Situated at some convei'iientplace and preferably at a somewhat lower point than the fuel tank. is an energy-storing device taking. in the present illustration. the form of an auxiliary tank or chamber 2. of small capacity containing air under. pressure. and having a small opening connectingit with the. This chamber is (ltSlfIiIGtl to feed fuel pipe. fuel to the burner when the automatic pump is' idle. such for example.- as would l e the case when the vehicle is standing still with the fire banked. lhe chamber also assists Specif cation of Letters Patent. Application filed July 27, 1901. Serial No. 69,903.

PatentedMay 19, 1908; :2

in furnishing fuel to the burner when for-anyreason the pump strokes areverv slow? The chamber is provided with a valve 2" cap like an ordinary bicycle tiresotlia't'an initial pressure maybe given tlie-reto 'I may.,

use if desired achamber havingja permanentair pressure therein. I

. The bunier'conslsts of avaporizer 3,., ti'.j6o

nozzle 4, and a baffling plate 5. In ardent-o;

clean the nozzle of the burner, a needle 6, is provided which is actuated by the'lever. 7 a

et-ween the auxiliary fuel tank 2'.=;t]1i tl the; burner is a fuel carryingcomiection S .'.\'vliich"t5 connection includes the adjust-able regula ing valve 9. The connection 5 shunts or b; passes the pum .10 and regulator so that fuel can be supp ied to the burner independ-' entlythereof.

- 9 I p {'70- 1 he air prcssuregin the auXiIiary-tankn' aj v e that-1s desired: fronrthirty to;

be a nythinfifty pounds will be found to he satisfa-ctor The pressure in the pipe 8 will be theisameiisthat of the tank. while the pressure-iifthe pipe between the-valve 9 and .the burrier may be reduced to anysuitable amount. prefer-' ably from three to five pounds. In other words. the valve is opened just enouglif -to permit suffic-ient fuel to flow through it; -',to keep the fire in a banked condition.- and. b v' making the auxiliary tank of the properai capacity. this low fire can'bemaintained for" a considerable time: for example,'a-n hour.

' An automatic pump-10 is provided'which S5 is driven from the engine 11 by means of a belt or chain 12 and the crank disk 13; The pump is of the ordinary sin le acting type, and is controlled by the va ves 14 and 15,- which permit fluid to flow'in the direction of the arrows but not in the reverse directions Between the fuel tank 1 and thepump is a. Q

connection 16. containing a small regu tingvalve 17. This'valve is set to give a definite opening and performs no part in the ordinary regulation. but is closed when it is desired to leave the vehicle for any considerable length of time. Extending between the pump and;- the burner is a cormeetion lSywhich contains v a check valve 1! permitting the fuel to flow. .100 in the direction of the arrows but not in the? reverse direction. and aregulatingvalve 20 The latter is set to give the required-.t;) penin'g and performs no part in the or(li n ry. -regula;

-which is included in one of the said connec- I thel pump, and a valve between the, pump tion of a main fuel tank, a burner, a pump,- a

plurality ofseparate supply connections arranged in multiple between and connecting the pump and the burner, an auxiliary tank tions and contains fuel under an initial pressure for supplying the burner when the pump is idle, and an automatic regulator which is included in another of the connections and controls the delivery of the pump.

11 In a supply system, the combination of a burner, a main fuel tank holding "fuel at substantially atmospheric pressure, ower driven pump connected with the tan and; the burner for increasing the pressure of the fuel supplied to-the latter, an auxiliary tank containing fuel under pressure, a separate. supply connection leading from the auxiliary tan 1 for automatically supplying fuel to the burner when the pum is not operating, a means for connecting t e auxiliary tank to a source of air for placing it under an initial pressure, and valve in said supply connection for reducing the pressure of the fuel supplied by the auxiliary tank to the burner to maintain the flame in banked condition.

12'. In combination, a burner, a fuel supply tank, a connection between the tank and the burner, a pump in said connection for delivering fuel to the burner at high pressure, an energy storing device, a connection leading from the delivery side of the pump to the storing device, and a third connection independent of the aforesaid connections which extends from the energy storing device to the burner to feed fuel to the latter.

13. In combination, a burner,a main fuel tank, an auxiliary fuel tank,-a pump which is connected to the main tank and maintains the auxiliary tank under pressure, a direct connection between' the pump and the burner, and a controllable connection be tween the auxiliary tank and the burner which shunts or by-passes the pump.

' 14. In a system of fuelcontrol, the combination of a burner, a main fueltank, an auxiliary tank, a pump which is connectedto both tanks, a connection fronrthe pump to the burner, a valve which prevents the return of fuel to the pump from the auxiliary tank, a separate fuel carrying connection. between the auxiliary tank and the burner, and a means in said latter connection for controlling the passage of fuel from the auxiliary tank. I

15. In combination, a boiler, a burner therefor, amain fuel tank, an auxiliary fuel tank containing fuel under pressure, a pump connected with the main tank and with the burner and delivering fuel under pressure from the tank to the burner, a, connection burner can be supplied'with fuel from said' auxiliary tank when for any reason the pump fail'sto deliver the proper amount of fuel-to.

the burner.

16. In a fuel system,,the

an auxiliary tank containing fuel under a higher elastic fluid pressure and .receiiring its supply of fuel from the main tank, ameans whereby thaauxiliary tank can be connected with a source of elastic fluid pressure to give combination of a mam tank containing fuel under lowpressure,

*itan initial pressure, a power pump and suitable connections therefor for drawing fuel from the main tank and delivering it to the auxiliary tank under pressure, acheck valve preventing the flow of fuel from the auxiliary to the main tank, a conduit for conveying fuel from the pump to the burner independently ofthe auxiliary tank, a separate conduit for conveying fuel from the auxiliary tank to the burner when the pump is idle or substantially so, and a regulator in the fuel circuit which determines the pressure of the fuel supplied to the auxiliary tank.

17. In a system of fuel supply, the com bination of a burner, a main low pressure tank, 'a power pump which receives fuel from the main tank, an auxiliary tank, connections through which the pump delivers to the auxiliary tankand to the burner, means in one connection by which fuel is held in the auxiliary tank under pressure for feeding the burner when the pump is idle and prevented nection, a device for permitting the auxiliary tank to be placed under air pressure, a bypass for the pump, and a regulator which controls the bypass and. regulates the amount of fuel delivered to the burner.

' 18. In a motor -vehicle,':the combination of a propelling motor, a boiler for supplying motive fluid to the motor, a burner for the boiler, a fuel reservoir, a pump connected with the reservoir and delivering fuel to the burner, means for operating the pump from the motor, a pressure chamber connected with the pump di liveryv and with the burner for supplying fuel to the latter under certain conditions, a throttling device controlling the supply of fluid to the motor, and means sensitive to the pressure on the motor side the device for controlling the supply of fuel to the burner independently of the speed of the motor.

19. In a motor vehicle, a propellipg motor for said vehicle, a boiler connected with said for from flowing to the burner through said conmaintain it ina banked condition so that it is ready for starting at any instant without thought on the part of the operator other than to admit steam to the engine by throttle 78. in other words, a high and low pressure fuel service are provided, the high pre sure service working when the machineis rum'ung, and the low pressure when, it is standing still, the two being arranged to coact in sucn a manner that when one stops or nearly stops the other starts into opera tion. When the system is in full operation little or no fuel will flow through the valve 9,

because the pressure in pipe 18 is so much greater, but as the pressure decreases in pipe l8, the flow of fuel from valve i-l increases.

in accordance with the provisitms of the patent statutes, I have described the principle of operation of my invention, together with. the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means. What i claim new, and desire to secure by Letters l atentof the United States, is,

l. in combination, a boiler, a burner, a sourcef fuel supply, a pump fol-increasing the pre sureof the fuel supplied to the burner,

an orig lied from the boiler and drivmgr nd pump, an energy storing device acted upon by the fuel pump which returns its energy to the fuel syste n'r when the act on of the pump is decreased to a certain point or stopped, and a steam sure regulator for controlling the delivery of the puntp which is actuated by the steam on the engine side of the throttle.

2. in combination, a boiler, a burner, a source of fuel supply, apump for increasing the fuel lnessure, an engine supplied from the boiler and driving said pump, an auxiliary tank in the fuel circuit which contains air under pressure, a steam pressure regulator for governing the action of the pump, and a connection extending from the regulator to a point in the steam pipe, between the engine and the throttle, for admitting steam to the regulator.

3. ,ln continuation, a boiler, a burner for heating the boiler, an engine receiving steam from the boiler, 21 fuel pump driven by the engine, a supply tank containing fuel at atnulspheric pressure, an auxiliary tank cou- 'tion between the auxili 7 burner through which fuelis supplied to mami taming fucl under pressure above that of the atmosphere, a stop valve between the tanks, a connection between the auxiliary tank and the burner, a valve in said connection. a bypass around the pump, and a steamactuated regulator for opening and closing the by-pass.

4. In combination, a boiler, a burner, a 'main fuel tank, an auxiliarvtank, a connechuh and the tain the burner flame in banked condition, a pump having a separate connection to the main tank and the burner for delivering fuel directly to the latter, a connection between the delivery side of the pump and the auxfuel to maintain the flame in banked condi-' tion, a pump connected with the main tank, a connection between the pump and the burner which is separate from the first mentioned connection for delivering fuel to the burner under normal pressure, and a connection from the pump to the auililiary tank for supplying fuel thereto under a pressure above that of the atmosphere.

6. In combination, a boiler, a burner, a main fuel tank, an auxiliary fuel tank containing fuel under a pressure greater than that of the main tank, a pump for maintaining the pressure of the auxiliary tank and also for supplying fuel. to the burner from the main tank, a connection from the auxiliary tank to the burner, a check valve to prevent fuel from being forced from the auxiliary into the main tank, a by-pass aroundthe pump, and a steam pressure regulator for controlling said bypass.

7. In combination, a burner, a fuel pump, a main tank which supplies the pump, an auxiliary tank which receives its supply from the pump, a connection from the pump to the burner, a. separate connection from the auxiliary tank to the burner, and means which permits the pump to deliver fuel to the auxiliary tank but prevents fuel in said tank from flowing back to the first mentioned connection or to the main tank.

In a fuel supply system, the coi'nbination of a main fuel tank, a burner, a connection between the tank and the burner, a pump located in the said connection for supplying fuel to the burner under high pressure, an auxiliary tank whose contents are under an initial ai r pressure, said tank receiving its supply from the pump, and a connection leading from the auxiliary tank which is independent of the first connection andsupplies fuel to the burner at a pressure lower than that due to the pump.

In a fuel supply system, the-combination of a burner, a high pressure fuel pump which is connected with the burner to deliver fuel directly thereto, an auxiliary tank in which the fuel is maintar'ned under high pressure by the pump, a separate connection between theauxiliary tank and burner by which fuel is supplied to the latter at a pres sure different from that of the fuel supplied by the pump, a main fuel tank which supplies eda' ted to supply the burner under banked eesme I 5 motor, .a burner, a fuelreservoir, a pump ass around said pump, and a'pressure regu- 10 connected with skid reservoir and delivering Pater in said by pass which regulates the to sa1d,-burner,-n1eans' to operate the pump supply of fuelto the burner. i from said .motor, a pressure chamber 'c0n In witnesswhereof, I have hereunto set 5-neeted with the pump deliverywhich is my hand this 23d day of July, 1901. HERMAN N LEMP. con iti0ns,' a means which prevents fuel Witnesses: trom flowing from the chamber to the burner DUGALD McK. MQKILILOP, 'thlfbtlgh the pump delivery connection, aby JOHN J. WALKER.

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