US1422907A - Oil burner - Google Patents

Description

J. WILKINSON OIL BURNER.

APPLICATION FILED JUN-E4. 1920.

Patented. July 18, 1922.

JESSE wrnnrnson, or wrmvrrns, lvrenrrosa, CANADA.

1 OIL BURNER.

ineaeov.

Application filed June 1;

To all 11% cm it may concern Be it known that l, Jnssn lVitnrNsoiv, of the city 01 ll innipeg, in the Province of Manitobeu Canada have invented certain new and useful Improvements in Oil Burners. of which the following is the specification. The invention relates to improvements in oil burners and the general object of the inventionis to provide a simply constructed, inexpensive. easily assembled, durable and eilicient burner for burning oil.

A further object is to construct an oil burner having distinct entrance chambers into which oil and primary air are separately fed under pressure, and from which the oil and air are liberated through adjusting valves to a mixing chamber where they are intimately mixed and afterwards combined with auxiliary air supplied from an outside source.

A further object is to arrange the valve control so that it can be adjusted conveniently and minutely.

With the above objects in view the invene tion consists essentially in the arrangement and construction of parts hereinafter more particularly described and later pointed out in the appended claim reference being had to the accompanying drawing in which Fin. 1 represents a side view of the complete oil burner.

' Fig. 2 represents an enlarged longitudinal sectional view centrally through the burner.

Fin. 3 represents a sectional view transversely through the burner, the section being taken at XX Fig. 2 and looking inwardlv.

Fig": 4- represents a sectional view through a portion of the burner, the section being taken at OO Fig. 2.

Fig, represents a sectional view transversely through the burner, the section be ing taken at KL-K Fig 2.

In the drawing like characters of reference indicate corresponding parts in the several figures.

1 represents the body or head of the burner which is more or less elbow shaped, being fitted with an air inlet pipe 2 at one end and having the other end gradually contracted to the outlet 3. Directly opposite the outlet the back of the burner is bored and screw threaded as shown at 4 to receive a casing 5 which has the outer end gradually contracting and screw threaded at its extremity at and then flaring is to say,

tapering outlet orifice Specification of Letters Patent. Patented July 18, 15, 22.

1920. Serial No. 385,674.

6 and the inner'end to provide a flaring mouth piece forming a mixing chamber. The external diameter of the larger end ottthe mouth piece is somewhat less thanthe interior diameter of the outlet 3 so that an an nular air space. Sis provided around the gradually contracting mouth piece to allow of the escape of the auxiliary air admitted through the pipe 2. {it the inner end of the mouth piece the easmg is provided with a cone shaped valve seat 9 fora purpose later disclosed.

'10 representsan atomizer adjustably connected by means of the adjusting nutll to the casing and having the inner end thereof entering the chamber 12' provided within the casing and forming in reality a primary air chamber; The atomizer'comprises the parts now described.

13 represents a barrel or inner casing screw threaded as indicated at 14 into the nut 11 it being here understood that the threads 14 are oppositely cut to those 6. that they are respectively right and left hand threads. The inner end of the barrel is internally screw threaded to receive the nozzle 15,' the extending end of which'forms a cone valve face 16 designed to seat on the valve seat 9. The nozzle is supplied with a 17 and with a tapering VVithin' the outer end internal valve seat 18.

a regulating nut 19 of the barrel I locate which is interiorly screw threaded to receive the screw threaded part 20 of a valve stem 21 passing lengthwise of the barrel and provided at the inner end with a needle valve 21 and at the outer end with a hand wheel 22. The outer end of the barrel is closed by a gland 23 and a packing nut 24. packing 25 being; interposed between the gland and the adjusting nut to prevent leakage past the nut 19.

A notched guiding disc 26 carries the inner end of the valve stem slidably within the inner end of the barrel. 2

From the above construction it will be obvious that one, by turning the hand wheel 22 can adjust the needle valve towards or away from the valve seat18 as occasion may require.

27 represents an air pipe, for primary air, leading to the chamber 12, which pipe is designed to feed high pressure air to the chamber. A controlling valve 28-of any suitable through the pipe 27 to the ,air chamber.

The barrel 1% forms an inner oil chamber 29 and to it I lead the oil utilized in the burn er the oil throu 1 h the pipe In actual practice this pipe 30 will be stationary so that it h as a constant tendency to pi vent any rotation of the barrel although it will allow of a slight in and out movement of the barrel as required when the adjusting nut 1 is manipulated. From the above dis- ClOF e it will be apparent that one can ad just the atomizer by turning the nut 11. ihc action of which is to withdraw the valve face 16 away from or advance it towards the seat 9 thereby controlling the outlet of the primar air from the air chamber intotho mi j chamber or mouth piece 7.

Furthen it will be seen that by manipulating the hand wheel the how of oil from the oil chamber to the mixing chamber will be controlled at the seat 13.

In actual practice both the prime and the oil are fed into their respective chambers under pressure, whilst the auxiliary or secondary air admitted tl'iroug h tin: pipe 2 is low pressure air.

lVhen one wishes to use the oil burner he initially adjusts the nut 11. to open the valve l6 and allow the high pressure or primary air to escape from the chamber 12 past the valve seat 9 into the mixing chambaiir. lle

then opens the needle valve by manipulating be hand wheel 22 and allows the oil to teed from the chamber 29 past the valve seat 18 inc the mixing: chamber. This oil in pass ing to the mixing chamber is broken up by the guide disc andbecom'cs vaporized at the nozzle where it enters the mixing chamber and is mixed with the air. The resultant mixture escaping from the mixing chamber is intimately mixed with the low pressure air passed through the opening; 8 and this mixture isignited to form the flame utilized for heating purposes.

it is here remarked that the low pressure air is supplied to support combustion and to make the mixture 9. more lean one.

lVhat I claim as my invention is Er burner comprising a hollow body. having ht angulnrly related inlet and outlet openings and provided with a threaded aperture in line with the outlet, a hollow casino; h aving the intermediate portion hereor threadedly engaged in s i l aperture and the forward portion thereof" pl'OjQCiIlllg into the body, said casing; being; formed with a flarmouthpie 'er the tip of which terminates at or near the outlet end or the casing provides, in conjunction with said end an annular discharge passage leading; from the be a partition wall at the juncture of the casing and mouthpiece formed with an aperture providing a valve seal a hollow barrel projecting into the casing from the rear end thereoit, an adjustable connection between the barrel and easing closing the rear end ot the latter and permitting the barrel to be adjusted toward or away from said valve seat deta -hable nozzle carried by the inner end; of the barrel and. adapted to said seat to cont ol comnulnication between the casing and the mouthpiece, a hollow rod ext-ending through the barrel and h avin g a needle valve at its inner end adapted. to a valve seat formed in the tip of the nozzle, and means for sup ilying oil to the barrel. and means for supplying air to the casing.

Signed at Vi innipeg, this 6 day of May 1920.

JESSE WILKINSON. In the presence of:

S. lloxnrmon,

W. C. BOGGISS.

a n d

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