US696638A - Automatic fuel-regulator. - Google Patents

Description

1No. 696,638. Patented A r. l, I902. H. A. HOUSE, .In.

AUTOMATIC FUEL REGULATOR.

(Application filed May 28, 1901.) (No Model.)

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Unwrap STATES PATENT @FMCE; V

HENRY ALONZO HOUSE, .111,

OF IIAMPSTEAD, ENGLAND.

AUTOMATIC FUEL REGULATOR.

SEEQJIFICATIQN forming part of Letters Patent No. 696,638, dated April 1, 1902.

Application filed May 28,1901. Serial No. 62,228. (No model.)

To all whon't it may concern: k

Be it known that I, HENRY ALoNzo HOUSE, Jr., a citizen of the United States of America, residing at Hampstead, in the county of Middlesex, England, have invented certain new and useful Improvements in Automatic Fuel- Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable oth ers skilled in the art to which it appertains to make and use the same.

This invention relates to that kind of burner for burning gas or vapor generated from hydrocarbon oil in which the supply of gas or vapor to the burner is regulated by a valve covering the outlet of the gas or vapor pipe leading to the part of the burner where the combustion takes place. In burners of this kind, and more especially those employed for heating purposes, the aforesaid regulatingvalves are usually opened by the pressure of the gas or vapor and closed when that pressure is removed or reduced by a weight or spring. I have found that with this arrangement only the regulation of the supply of gas or vapor to the burner to suit various requirements is not so reliable or certain as it should be.

The chief object of my present invention is to provide improved means for actuating the valves, and thereby effecting a more reliable and certain regulating action.

In the accompanying drawings, Figure 1 illustrates in central vertical section one form of burner with my improvements applied thereto, and Fig. 2 is an elevation of a portion of Fig. 1.

Similar letters relate to like parts in both the figures of the drawings.

Instead of depending upon the pressure of the gas or vapor upon the comparatively small surface of the valve itself to open the said valve and upon Weights or springs only for closing the same I employ the pressure of the steam in the boiler, to the furnace of which the burner is applied, to operate the valve, such pressure being transmitted to the valve by means of a diaphragm, piston, and cylinder or other similar device.

When a burner of the kind hereinbefore referred to is employed for the generation of steam in a steam-boiler,forexa1nple,itis desirable when the burner is first started and the surrounding parts are more or less cold and the water in the boiler has not commenced to circulate that the quantity of gas or vapor supplied to the burner, and conseqnently the size of the flame, should be comparatively small and that as the surrounding parts become heated and steam of low pressure is generated the flame should beincreased until the maximum working pressure in the boiler is reached, when the flame should be reduced. In order to effect this, I employ an arrangement such as is illustrated in the drawings, in which a is a diaphragm acted upon by steam from the boiler, and I shape the burner-regulating valve g in relation to the orificeyof the burner somewhat as shown, the valve g and diaphragm a being shown in the position they would occupy at starting, a small quantity only of gas or vapor being allowed to pass through the hole zin the center of the valve g. After steam has been generated it enters the space above the diaphragm a through the passages 2 2, and as soon as the steam is of sufficient pressure the diaphragm a is pressed down thereby against the resistance of the spring 0, which resistance may be varied by means of the screw device 19 in a manner wellunderstood. The forcing down of the diaphragm to acts upon the lever 5, pivoted at one end to a fixed support 6 and carrying atits other end the bridle h, which is shown more clearlyin Fig. 2. This bridle h carries the burner-valve g. This valve 9 having been lowered by the lever 5 a larger quantity of gas or vapor is allowed to pass from the gas or vapor passage 9 by the recesses 7, and thus continues until the maximum working pressure of the steam is attained, when the continued action of the diaphragm Ct upon the lever 5 lowers the valve 9 until the enlarged portion 8 closes the orifice y of the burner more or less until the steam-pressure falls, when the diaphragm to acts to increase the orifice of the burner in proportion to the pressure of steam in the boiler and the valve is thereby raised, a larger quantity of gas or vapor is thus allowed to pass until the maximum working pressure of the steam is again obtained, when the continued action of the diaphragm upon the valve reduces the orifice as before untilthe steam-pressure falls and the diaphragm acts to proportionately increase the orifice in the burner, and so on.

I c1aimconstantly open aperture, a diaphragm adapts IO ed to be actuated by pressure and connections between said diaphragm and said valve.

In an automatic regulator the combination In Witness whereof I have hereunto set my of a valve-casing provided with an inlet and hand in presence of two Witnesses. an outlet, a valve adapted to close said out- I HENRY ALONZO HOUSE, JR.

let when moved in either direction and to per- \Vitnesses: mit a maximum flow in an intermediate posi- STEPHEN EDWARD GUNYON, tion, one of said parts being provided with a WILLIAM ANDERSON SMITH.

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