US1079272A - Spray-burner. - Google Patents

Description

J. SNEDDEN.

SPRAY BURNER.

APPLICATION FILED 00121, 1912.

1,079,272, Patented Nov. 18, 1913.

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079,272. sp fl mm mm. 7 PatentedNov.18 ,1913.

Application filed October 7, 1912. Serial No. 724,869.

all whom it inc concern: provided with a stufiing box K is con- Be it known at I, Jams SNEDDEN, a structed to close this passage entirely or ;izen oi the United States, residing at to open it at different degrees. This ad- 'ichita, in the county of Sedgewick and justing lug has an external head K by ate of Kansas, have invented certain new means 0 which it can be re ulated from the outside. On the other si e of the main .d useful Im rovements in Spra -Burners,

which the ollowing is a specification. My invention relatesto certain improveants in burners for fuel oil or hydro-carn burners and is designed to cooperate th 2. motor driven air and oil supply, and particularly an improvement on my deme for the hydrocarbon furnace described my co-pending application No. 688,108, ed April 2, 1912.

One object of the invention is to provide burner which not only regulates the quany of combustion mixture injected into the mace, but also regulates the composition that mixture whereb a smaller or greater 'oportion of oil is a mitted to mix with e air.

Another object of the invention is to rode an automatic check in the burner, w ich n be set by hand for a certain desired essure of the entering oil. If this ressure not reached, the oil supply will e autoatically shut off, until the pump is able deliver the oil at the desired pressure. v these several features of the invention justment of the burner is possible for rying temperatures.

The several features of the invention are own in the accompanying drawings ierein:

Figure 1 is a transverse section along to 11 of Fig. 2; Fig. 2 is a vertical secm on line 22 of Fig. 1 and Fig. 3 a diaammatic representation of the furnaceth the burner in position.

In the different views in the drawing E presents the pipe supplying the air to the lve and F is the oil pipe eading from a itable pump to th burner. G is the burner casin in which is ated the main valve spindle H, which gulates the quantity of combustion mixre permitted to enter the burner nozzle through the opening C.

A passage A connecting the air pipe E 1th the seat of the main spindle H admits e air into the burner, and an adjusting ug K, threaded in the burner casing G and spindle H is symmetrically arranged a similar adjusting plug J for regulating the oil supply. This oil plug is also threaded in the burner casing G and has an external head J and a stufling box J The oil from the oil pipe F enters the housing from the passageB where it is checked by the ball N normally closing the assage B and actuated by a spring S. he strength of this sprin is regulated by means of the screw M w ich is also provided with a stufiing box L.

It will be noted that the air passage A is considerably larger in cross section than the oil passage B admitting the oil into the seat of the main spindle H. The importance of this feature is generally overlooked by designers of these kinds of burners, causing an im roper kind of combustion on account of the wrong proportion of oil and air in the mixture. The areas of these passages A and B have been so selected that by normal running, the passages may be fully opened, that is the plugs K and J may be drawn back out of the way. When the adjusting plu s K and J have been set to give the rig t proportions of the mixture, the main spindle H may thereupon be set to regulate the proper degrees 0 heat.

The automatic closing device of the oil passage B by means of the ball N is as already described dependent on the pressure of the spring S, which pressure is intended to be varied in accordance with the different oil pressure at high or low temperature as in mild or cold weather. In practice, I regulate the pressure on the spring to the pump pressure on the oil, so that should the pum or its mechanism fail to give the desi pressure on the oil, the passage B will be automatically closed by the ball N and the spring S, and no more oil admitted into the burner.

After having once been set for the proper mixture of the oil and the air, the adjusting plugs K and J need not, under ordinary circumstances be reset unless the assages in time should become clogged, w len readjustment would be advisable.

I claim:

1. In a hydrocarbon burner device, in combination with a fuel mixture passage, an oil passa e and an air passage in communication with said fuel mixture passage; the maximum cross sections of the oil passage and the air passage bein pro rtioned to correspond to the quantities 0 oil and air entering into the fuel mixture; and said oil passage being provided with an automatic resisting valve yieldingly seated against the flow of oil through sai oil passage and having'l means for regulating its resistance at W1 2. In a h drocarbon burner the combination with a urner casing, a mam valve spindle and a seat therefor for admitting the compress:d on m xture to the burner, an oil pipe an an air 1pe an air passage connecting the air i pe lmh the seat of said mam spindle, an an oil passage connecting a]; pipe with sgidlvalve an an adu a epu meal 01 assage orreguat-ing the c oss section tllereo the maximum cross section of said oil passage bei smaller than the maximum cross section 0 said air passage; of a device in said oil passage for automatically admitting above a fixed minimum pressure, said device comprising a ball, a set screw and a spring abutting against said set screw and said all; whereby said oil sup 1y will be automatically cut oif when the oil pressure is less than desired; the minimum amount of pressure being regulated through the adjustment of the compression of said spring by means of the set screw.

The foregoing s ification signed at Wichita, Kansas, this 16th day of September, 1912.

J AMES SNEDDEN.

In presence of- WAIUI'ER J. BRANT, Anon Susanna.

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