US414098A - Otto westphal - Google Patents

Description

(ModeL) O. WESTPHAL.

INJECTOR. No. 414,098. Patented Oct. 29, 1889.

UNITED STATES PATENT OFFICE.

OTTO ESTPIIAII, OF HAMBURG, GERMANY, ASSIGNOR TO \VEBER & IVESTPHAL, OF SAME PLACE.

lNJ ECTO R.

SPECIFICATION forming part of Letters Patent No. 414,098, dated October 29, 1889.

, Application filed May 1, 1889.

To all whom it may concern.-

Be it known that I, OTTO lVEsTPHAL, a subject of the Emperor of Germany, residing at Hamburg, in the German Empire, have invented certain new and useful Improvements in Injectors; and I do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in that class of injectors which are commonly known under the name of restarting and exhELUSB-SlJGtlll injectors, and the object of my invention is to provide means for securing the instantaneous restarting of the injector as soon as steam and fluid are permitted to enter the receiving-cone. I attain this obj set by the peculiar construction and arrangement of parts forming my improved injector illustrated in the accompanying drawings, in which Figure 1 is a vertical section of an injector provided with my improvements; Fig. 2, a top view of an improved cone-the essential feature of this invention; Fig. 3, a vertical section of the slightly-modified inner parts of my injector, and Fig. i a top view of the heretobelonging principal cone.

Similar letters referto similar parts throughout the several views.

Myinjector consists of the casingA,with the branch A for the water-inlet, the branch A forming the overflow and being provided with -a check-valve, the cone 0 for the entrance of steam, the lifting-cone a, and the combiningcone D, connected to the discharging-cone g.

In contrast with the injectors of the older type mentioned, my injector is provided with a stationary invariable lifting-cone a, separate from the intermediate combining-cone D, which consists either of a stationary part (1 and a yielding part d or of two or more yielding parts d (1 serving to enlarge or contract the sectional area of the steam and water passage automatically. This intermediate combining-cone is preferably connected with Serial No. 309,175. (ModeL) yielding part or parts of the former are hinged thereto in such a manner as to form a flap or flaps opening toward the lifting-cone a, and the hinge or hinges f f of such flap or flaps are so arranged that the current orflow of fluid forced by the steam through the lifting-cone a when touching the inner surface of the said flap or flaps d d in the direction of the arrows will act upon a lever, the fulcrum of which is the hinge f or f of the flap or flaps. These flaps, when closed, entirely surround the overflow h, which is in this state out of connectionwith the casing A of the injector. In consequence of this arrangement, the flap or flaps of the intermediate combining-cone D will automatically and instantaneously fold together under the influence of the mixture of steam and fluid striking against the inner surface of the 0scillating section (1, and thereby the jet at this moment will be established without fail.

In contradistinction to that class of injectors, as shown, 6. g., in the United States Letters Patent N 0. 245,354, wherein the closing of the flap and the contraction of the water and steam passage of the combining-cone are caused only when the jet is entirely established at the overflow between the combining and the discharging cone and after the jet has obtained its maximum velocity, according to n1 ypresent invention the mixture of steam and water, when entering into the cone D, will at once and directly cause the movable section or sections (1 d of the same to perfectly close before the jet is established. In the older construction of this class of injectors the oscillating section of the cone is maintained closed only by the sucking action of the jet, so that in case of a diminution of the pressure in the casing of the injector and of a higher pressure within the cone the oscillating flap will open, and thereby the action of the injector will cease. This will always occur if the overflow branch A is provided with an airvalve, and therefore it has become customary to cut a groove into the seat of the air- Valve in order to allow a certain amount of air to enter into the casing of the injector, thereby obviating the formation of a vacuum around the two-part combining-cone when the discharge or delivery cone 9, and the the injector is in action. However, this remedy is accompanied by the disadvantage that on feeding steam-boilers an enormous quan tity of air is discharged with the Water into the boiler, and therefore such injectors could not be successfully employed with condensing-engines. All these disadvantages are entirely overcome by my present invcntion, as on account of the lever action depending upon the particular arrangement .of the movable parts of the combining-cone, the latter is apt toclose, and consequently to instantaneously restart the injector at the very moment the steam and Water enter into this cone Without prejudice of pressure surrounding the cone in the casin g of the injector. For this reason my injector may be provided With an absolutely airtight check valve at the overflow branch A Without altering the exact working of the injector. In conse quence thereof my injector will feed Water of much higher temperature than that to be employed in connection With the aforesaid. mentioned older injectors, which, by reason of their imperfect condensation of steam, Will not permit the supply of Water of more than 15 of Celsius.

The principal feature of my invention consists in pivoting the section or sections of the combiningcone at their lower ends to the upper end of the discharging-cone. By means thereof the movement of such part orparts is rendered certain, especially inthestartingof the injector. By extending the ends of said part or parts up to the lifting-cone they greatly aid in the accomplishment of the desired results.

Having now particularly described and ascertaiued'the nature of my said invention and in what manner the same is to be performed, what I desire to secure by Letters Patent is .1. As an improvement in steam-injectors, the combination, with the lifting and discharging cones, of the combining-cone having a pivoted section secured at its lower end to said discharging-cone and extending to said lifting-cone, substantially as set forth.

2. As an improvement in steam-injectors, the combination, with the lifting and discharging cones, of the sectional combiningcone having a hinged part or parts secured at their lower ends to the upper end of said discharge-cone, substantially as set forth.

In testimony whereof I have affixed mysignature in presence of two Witnesses.

0'1"0 WESTPI-IAL. \Vitncsses:

ALEXANDER SPEoH'r, G. MEGUIN, Jr.

Images