US1647092A - Oil burner - Google Patents

Description

Oct. 25, 1927. 1,647,092

- A. B. GOODSPEED OIL BURNER Filed June 6, 1924 3 Sheets-Sheet 1 INVENTOR c MW Lug/ME fi /m Oct. 25, 1927.

' 1,647,092 A. B. GOODSPEED OIL BURNER Filed Ju '1924 a Sheets-Sheet 2 Patented Oct. 25, 1927.

UNITED STATES PATENT OFFICE,

ARTHUR B. GOODSPFEED, OF CHESTER, CQNNECTICUT.

on. BURNER.

' Application filed June a, 1924. Serial no. 715.22%

States Ser. No. 655,886, filed August 3, 1923, there are shown and described certain 1mprovements in oil burners. In that application a requirement was made on the part of the Commissioner of Patents for division on the ground that the claims were drawn to several independent inventions. The present application is made primarily for the purpose ofcomplying with that require ment and for covering one of such inclependent inventions, but in the time which elapsed between the filing of said earlier application and the making of such requirement for division, the construction which formed the subject matter of said earlier application as filed, was further'developed and perfected and the present application, therefore, while covering the original independent invention, is based'upon the perfected construction and is addressed in part to the perfected features. The invention which is the subject of this application is concerned particularly with the control of the supply of oil and water.

In the operation of the structure shown in said earlier application, both the oil admission valve and the water admission valve remain closed until pressure has been developed through the generation of steam by the heat of the starting lamp. During the'period of such development of pressure, there was sometimes a more or less fluctuating and spasmodic flow of oil and water so that it was not possible always to bring about the constant and governable supply of oil and water necessaryto a uniform and constant accumulation of pressure. Furthermore, the fluctuation of flow retarded materially the prompt starting of tie burner by reason of an interrupted temperature tension. This difliculty has been overcome, in the present instance, by-the provision of improved automatic devices which, although operating in substantially the same manner as the former devices, have been so designed to prevent the fluctuation of flow and spasmodic action. These improved devices and otherifieatures of improvement in connection with the control of the supply of oil and water to the burner, will be described more particularly hereinafter with reference to the accompanying drawings in which Figure 1 is a view mainly in elevation but partly in vertical section showing the improved burner and, in connection therewith, the improved devices for controlling the supply of oil'and water to the burner, the fuel pressure regulator and the automatic drain control being broken away.

Figure 2 is aview in elevation, partly in vertical section and on a larger scale, of the controlling devices shown in Figure 1 as seen from the same point of view.

Figure 3is a view of the devices shown in F igure 2, partly in elevation and partly in vertical section, as seen from the right hand in Figure 1, with the fuel pressure regulator and the automatic drain control in section.

Figure l is a detail view in elevation of some of the parts shown in Figure 3 as seen from the opposite direction.

The fuel oil is supplied from any suitable source, under pressure or by gravity, through a pipe a, the pressure being regulated bydevices to be described and thefiow being controlled by a valve indicated generally at b, the construction and operation of which will also be described hereinafter.

From the valve 6 the oil is conducted through a pipe (4 which is provided with'a valve or and is tapped into a base 0, shown in Figure 1, the base being channeled as at c. The base is, also preferably formed, as before, with a conical seat 0 to receive a conical liner d, which in turn is fo med with a conical seat a toreceive a conical member 6 which supports the burner tip 6. The liner d is channeled as at d and the burner support is channeled as at e to permit the oil to be delivered tothe orifice e of the burner tip. The present invention is not concerned with the particular construction of the burner parts and the same therefore will not be described in detail herein, reference being had to the application above mentioned, Serial No. 655,386, and to another application Serial No. 718,230 filed June 6, 1924, in which the construction of the burner is more particularly described. For the purpose of insuring the flow of oil to the controlling devices at a uniform head there may be connected into the oil supply pipe a, as shown at 0: in Figures 1 and 2, a float valve, the construction and operation of which are well understood and require no detailed description herein. For the further purpose of regulating. the pressure of the oil at the burner there is also provided a pressure regulating device to be described.

Water is supplied, from any suitable source, under pressure or by gravity, through a pipe 9, which may also have connected into it, as indicatedat g, a float valve, also of ordinary construction and operation and therefore not necessary to be described herein. The flow of water is controlled, so as to permit or prevent the passage of water, by a valve indicated generally at Z), the construction and operation of which will be described hereinafter. From the valve 5 the water is conducted by a pipe 9 provided with a stop cock 9, through a channel 9 in the base 0, whence it is delivered, as

described in the other applications above mentioned, to a steam generator indicated at it. From the latter superheated steam is delivered, as described in said applications, to a chamber about the burner tip 6.

In order that the pressure under which the fuel oil is delivered at the burner tip may be regulated, within the maximum determined by the uniform head under which the fuel oil is delivered to the controlling and regulating devices, there is provided pressure regulating device shown generally at s in Figures 3 and a. This comprises a float valve tank s having therein a float s -and a valve 8 actuated thereby for controlling the inlet of oil to the tank. Oil is delivered to the tank a from the pipe a through a. pipe at which has swiveled connections with the pipe at and with the tank 8, at a and a, and oil is returned from the tank 8 to the continuation a of the oil pipe at through a pipe a which has swiveled connections at and a with the outlet of the tank 3 and the pipe extension (1 Between the swivel connec tions of and a there is interposed a pipe section a which is plugged so as to prevent the passage of oil therethrough, serving only as a support for the parts above it. In the pipe continuation a there is interposed a stop valve a for the purpose of cutting off the QGllVQlY of oil to the controlling valve 6 when required. The described connections permit the tank 5 to be raised or lowered as conditions may determine for the purpose of regulating the pressure at which the oil is delivered to the regulating valve 6 and therefore the pressure at which the oil is delivered at the burner tip. In order that the pressure regulating tank 8 may be raised or lowered and sustained at the determined height there is provided a hand wheel 8 on a shaft which carries a worm s in engagement with a worm wheel .9 on the shafts on which is fixed an arm 8 which in turn engages, through a swiveled and sliding connection. 8 the swiveled pipe section a It has been found that in place of the form of valve shown in the application Serial No. 655,886 it is desirable to substitute a lap sleeve valve which is controlled by the pressure developed in the steam generator 7:, and it has also been found desirable to control the delivery of water to the generator by a lap sleeve valve. In the embodiment of the invention illustrated in the application last mentioned both the oil controlling valve and the water controlling valve were actuated by a single diaphragm, to the chamber of which steam pressure from the generator was admitted through a special connection provided for the purpose. It has been found desirable, however, to provide for the actuation of each valve a separate diaphragm, the pressure in the generator being communicated to the common chamber between the two diaphragms through a connection to the pipe through which water is delivered from the water valve to the generator, it being obvious that the water in the water system is subject to the pressure of the steam developed in the generator and serves as a convenient means of transmission of the pressure from the generator to the diaphragm chan her. The two diaphragms and ti are shown supported in a suitable housing 5 forming between them a diaphragm chamber which is connected through suitable pipe connections and 9 with the pipe 9 by which water is delivered from the water valve to the generator. A spider 2' is interposed between the two diaphragms to prevent excessive deflection of either.

The two valves, shown generally at Z) and I), are identical in construction and a description of one will suffice for both, the same reference characters being employed to indicate like parts. The casing i is formed, at each side, with a cylinder i which has a removable head and lining 2'. Within the lining is a sleeve valve 2' which has at i a circumferential channel through which, according to the position of the sleeve oil is permitted to flow from the inlet of the valve to the outlet from which it is delivered to the pipe a or is cut off. The sleeve valve 2' is secured to the corresponding diaphragm i or z" and receives within it a pull rod i which has at 6 a swiveled connection with the sleeve valve. The rod also carries a coiled spring i which, abutting at one end against the head of the cylinder and at the other end against a collar on the rod, provides the pressure against which acts the pressure in the diaphragm chamber. It will be under-v stood that as the pressure in the diaphragm chamber varies the sleeve valve 2' will. be moved to permit or prevent the flow of oil to the burner or of water to the generator as the case may be.

In order to permit the necessary flow of oil or water in beginning the operation of the burner and before sur'iicient pressure has been established in the generator, the valves 6 and 5 should be opened and held open until the working pressure is established. F or this purpose each rod 2' is formed with a shoulder i for engagement by a weighted latch 2' which is raised'by hand into engagement with the rodwhen the rod is pulled out at starting.- l fhen the pressure has been established in the diaphragm chamber and the sleeve valve 2" is pus led out by the diaphragm under the influence of the pressure in the chamber the rod i is pushed out and releases the latch "J which then falls by its own weight.

Any oil which may work pastthe oil sleeve valve into the space between the diaphragm i and the housing on that side may be drained oil through a drain pipe 2' into the etitioned base pan 6, a similar drain pipe being provided for the drainage of water which may escape aroundthe water sleeve valve. Other drain pipes 2' and 2 are provided at the other ends of the cylinders i. v

The drains 2', 6. 7?? are. open drains, butforthe prompt removal or water of condensation from the diaphragm chamber, which is subject to pressure, it is desirable to provide an automatic drain valve controlled by the pressure in .thediaphragm chamber. For this purpose there is connected into the water pipe system below the diaphragmv chamber, as shown particularly in Figure 3, a valve casing 1) provided with port a through which water may escape into the base f and a Valve 42' of large area which is held to its seat by. its own weight and by a spring. '0 The valveis supported and lifted when the pressure falls through its stem o by a weighted arm 41 which, at the time of starting and until working pressure has been developed, is supported by a weighted latch o". It will be understood that until the working pressure has been developed, the valve o -should beheld on its seat. When such working pressure has been developed, the latch o is disengaged manually. I

It is desirable that both the oil pipe system and the water pipe system, between the controlling valves and the burner tip and generator, shall be drained of oil and water respectively when the oil .ancl water controlling valves have been closed and also when the operation of the burner has ceased for any accidental reason, as it the supply of oilor of water gives out or the burner is extinguished. Automatic drain valves, under the control of pressure in the generator and therefore in thediaphragm chamber, are accordingly provided as indicated at w and w. The construction andoperation of the automatic drain valve for the water pipe system is the same as that of the automatic drain valve for the oil pipe system and description of the latter will therefore suffice, the same reference characters being employed to indicate like parts so far as they are shown in both. Connected to the pipe system is a centrally bored plug w against which, under the pressure of a spring e0 bears a valve w supported by a sleeve 'h'i mounted on'the plug a? and provided with ports w". A forked lever to; bears at its lower, forked end w? against the valve 20* and at its upper end, w, is en aged by the collar 2' on the end of the pull rod 719. The lever 10 is so nearly balanced that the spring 10 sutlices to hold the valve w against the plug 10 under ordinary conditions of operation, when the diaphragm 2' is subject to the working pressure and the rod t is pushed outwardly, but when, for any cause, the pressure in the diaphragm chamber -falls materially and, the diaphragm i or i, as the case may be, being relieved of pressure, the

sleeve valve 2' and with it the rodv a are moved toward the center of the diaphragm chamber by the spring i the collar 2' or the rod 2' rocks the lever 107 upon its axis and'moves the valve to against the pressure of the spring to thereby permitting all of the oil, orwater, as the case may he, in the connected pipesystem to be discharged into the base pan.

Reference has been made above to the regulation, through the raising or lowering of the tank 8, of the pressure under which the oil is delivered to the burner tip. It is desirable also to providefor regulation of the flow of water to the generator in accordance with the variation of pressure of the oil and at the same time to'provide for independent adjustment of the flow of water. to suit the conditions of operation. To meet these requirements there is inserted in the water pipe y, below the water controlling valve Z), a water regulating valve-g the stem of which carries an arm 9 which has pivotally connected thereto at; its upper end'an arm held yieldingly downward by a spring 9/ The arm 9 carries rack bar which engages a gear on the shafts of the worm wheel 5 Thereby, as the tank .9 1s raised or lowered and the pressure or head of the oil is increased or diminished, thevalve 9 is opened more or less andthe flow of water is increased or diminished. To adjustthe flow of water to suit diiierent conditions the rack bar is raised out of engagement with the gear g and is moved to open the valve 9' more or less as may be required.

In the embodiment of the invention shown in the application Serial No. 655,386, a special filler for the generator is provided, but in the present instance, for greater convenience in starting, there is provided a water by-pass 9 connected to the. water pipe 9 above the valve 6 and to the water pipe g below the valve 6 and having a valve By opening the valve 9 and at the same time opening the valve g in the pipe 9*, near the generator, the air in the pipe system is permitted to escape and the requisite amount of water is introduced into the geniln (ill

erator, the valve 9 being closed as soon as the air is expelled. In the operation of the urner, the regulating wheel a is turned to lower the tank 8 until the pointer on the swiveled pipe a stands at the point marked shut-oil on the scale a. The diaphragm drain valve 1) is held in closed position by the spring '0 the weighted lever 6 being held up by the latch 71'". The oil and water having been admitted to the respective float valve tanlzs a and 9 the valve pull rods 2' are pulled out and engaged by the latches 2' The valve 6 in the water by-pass g is opened and water is permitted to flow through the by-pass to fill the water pipe system and introduce into the generator /L suilicient water for starting, the vent cock having been opened. It will be understood that when the water by-pass is opened more or less water will enter the diaphragm chamber, due to the head o1 the starting water in the generator, thereby compressing to a like extent the air which is scrapped in the diaphragm chamber above the water.

The starting lamp is having been filled is then li hted and presently suiiicient heat is developed to generate steam in the generator. As the steam is generated and pressure is developed in the diaphragm chamber the water and oil controlling valves will be moved outward from the partly open position in which they are held by the latches 1: and the latches will drop of their own weight. Vdorking pressure having now been developed the regulating wheel 8* is turned until the pressure or head of the oil and the flow of the water are such as the operating conditions require.

The valve a is provided for the purpose of regulating the flow of oil from the valve 5 and therefore from the tank 8, thereby, if the orifice or" the valve a through which the oil flows is reduced the range of movement of the tank 8, to regulate the pressure is increased, while if the orifice of the valve a is increased the range of movement of the tank a is decreased. This makes it possible to maintain readily the proper ratio of delivery of oil and water under all conditions operation.

It will be understood that various changes in details of construction and arrangement can be made to suit different conditions of use and that, except as pointed out in the claims, the invention is not limited to the particular construction and arrangement shown and described herein.

I claim as my invention:

1. In an oil burner, the combination of a bu 'ncr tip, means to supply oil thereto, a lap sleeve valve to control the How of oil to the burner tip, a steam generator, means influenced by the pressure in the generator to control the valve, manually controlled means to move the valve to open position, and a weighted latch to engage said means and hold the valve in open position, the latch being released and disengaged by the continued movement of the valve under the in fluence of pressure in the generator. 7

2. In an oil burner, the combination of a burner tip, means to supply oil under pressure, means to supply steam to the burner tip, a valve to control the flow of oil to the burner tip, devices whereby said valve is closed by a reduction of the steam pressure, a pipe system to conduct oil from the valve to the tip, a drain valve to drain the oil from the pipe system, and means in operative relation with the oil control valve to open the drain valve as the oil control valve closes, said means ailording a degree of in dependent movement of one valve with r spect to the other.

3. In an oilburner, the combination of a burner tip, means to supply oil under pressure, means to supply steam to the burner tip, a valve to control the flow of oil to the burner tip, devices whereby said valve is closed by a reduction oi the steam pressure, a pipe system to conduct oil from the valve to the tip, a drain valve to drain the oil from the pipe system, and a lever in operative engagement with the oil control valve and with the drain valve to open the latter as the former closes, said means ailording a degree of independent movement of one valvewith respect to the other.

4. In an oil burner, the combination of a burner tip, means to supply oil thereto, a steam generator, means to supply water to the generator, a lap sleevev valve to control the flow of Water to the generator, means influenced by the pressure in the generator to control the valve, manually controlled means to move the valve to open position, a latch engaging said means to hold the valve in open position, and pressure controlled means to disengage the latch.

5. In an oil burner, the combination of a burner tip, means to supply oil thereto, a steam generator, means to supply water to the generator, :1 lap sleeve valve to control the flow of water to the generator, means influenced by the pressure in the generator to control the valve, manually controlled means to move the valve to open position, and a weighted latch to engage said means and hold the valve in open position, the latch being released and disengaged by the continued movement of the valve under the influence of pressure in the generator.

6. In an oil burner, the combination of a burner tip, means to supply oil thereto, a steam generator, means to supply Water to the generator, a valve to control the flow of water to the generator, pressure controlled means to operate said valve, a pipe system to conduct Water from the valve to the generator, a drain valve to drain the Water from the pipe system, and means in operative relation with the water controlled valve to open the drain valve as the water controlled valve closes, said means ali ording a degree of independentmovement of one valve with respect to the other. I

7. In an oil burner, the combination-of a burner tip, means to supply oil thereto, a steam generator, means to supply water to the generator, a valve to control the flow of water to the generator, pressure controlled means to operate said valve, a pipe system to conduct water from the valve to the generator, adrain valve to drain the water from the pipe system, and a lever in operative engagement with the water controlled valve and the drain valve to open the latter as the former closes, said means afi'ording a degree of independent movement of one valve with respect to the other.

8. In an oil burner, the combination of a burner tip, means to supply oil thereto under pressure, a valveto control the flow otoil to the burner tip, a steam generator, means influenced by the pressure in the generator to control the valve, a tank interposed in the means to supply oil and capable of being raised and lowered, swiveled pipe connections by which the tank is supported and through which oil is supplied to the tank and from the tank to the burner tip, and means to raise and lower the tank.

9. In an oil burner, the combination of a burner tip, means to supply oil thereto under pressure, a valve to control the flow of oil to the burner tip, a steam generator, means influenced by the pressure in the generator to control the valve, atank interposed in the means to supply oil and capable of being raised and lowered, swiveled pipe connections by which the tank is supported and through which oil is supplied to the tank and from the tank to the burner tip, a swinging arm engaging one of said swiveled pipe connections, and manually operated means to change the position of the arm.

10. In an oil burner, the combination of a burner tip, means to supply oil thereto under pressure, a valve to control the flow of oil to the burner tip, a steam generator, means influenced by the pressure in the generator to control the valve, a tank interposed in the means to supply oil and capable of being raised and lowered, swiveled pipe connections by which thetank-is supported and through which oil is supplied to the tank and from the tank to the burner tip, a swinging arm engaging one of said swiveled pipe connections, a shaft to which the'arm is attached, a worm wheel fixed on the shaft and a manually operated worm engaging the worm wheel. I

11. In an oil burner, the combination of a steam generator, means to supply water thereto under pressure, a valve to control the flow of water to the generator, means influenced by the pressure in the generator to control the valve, a valve to regulate the flow of water, an arm fixed to the stem of the valve, a second arm pivotally connected to the first and carrying a rack bar, a gear engaged by the rack bar and means to rotate the gear.

12. In an oil burner, the combination of a burner tip, means to supply oil thereto under pressure, a valve to control the flow of oil to the burner tip, independent means to regulate the pressure under which the oil is supplied to the burner tip, asteam generator, means to supply water thereto under pressure, a valve to control the flow of water to the generator, and independent meansto regulate the flow of water, said independent means to regulate the oil pressure and said independent means to regulate the flow of water be ing operatively connected to move together, and said independent means to regulate the flow 01"- water being capable of independent adjustment with respect to the independent means to regulate the oil pressure.

13. In an oil burner, the combination of a burner tip, means to supply oil thereto under pressure, a valve to control the flow of oil to the burner tip, a steam generator, a diaphragm chamber and diaphragm to control said valve, means to transmit pressure from the generator to the diaphragm chamber, a drain valve subject to the pressure in the dia phragm chamber, a weighted lever engaging the valve to open the same when thepressure in the diaphragm falls, and a manually operated latch to hold the weighted lever against action.

This specification signed this 3d day of June A. D. 1924. ARTHUR B. GOODSPEED.

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