US1153114A - Injector. - Google Patents

Description

@Fim S NEW YORK.

New' vente, N. Y., AssrGNons 'ro YORK, N. fr., a CORPORATION or` INJEGTOR.

` Specification of Letters Patent.

Application iled April 21, 1914. Serial No. 833,402.

To all 'whom t may concern:

Be it known that we, LEOPOLD KAssANDER and HARRY L. Lnvnnn'rr, both citizensof the United States, and both residing at New York, in the county of New York and State of New York, have invented certain new an useful improvements in injectors, of which the following 1s a specification.

This invention relates to injectors de-V signed for use with locomotives, and particularly to that form of injector in which, in addition to the main water supply inlet to the nozzles, there is an auxiliary'water inlet through which water from the main water supply passage may pass directly into the overflow chamber; and which. auxiliary water inlet is controlled by` a `gravity check valve, which in the art is Agenerally termed an inlet valve, the auxiliary water supply, through said inlet to theoverflow chamber, being drawn under certain conditions into the nozzles, through the overflow openings in the latter, resulting in an increased delivery capacity of the injector.

The gravity check valve above referred to may, and not infrequently does, get' out of order and become leaky. When this happens, the prompt startinglof the injector is interfered with. YinV order tok prevent this, there is arranged at a suitable location near the gravity check valve referred to, a hand operated cut out valve, which in case the gravity check valve becomes leaky, may be used'positivel.j to close the auxiliary water inlet,thus permitting the injector to be continued in action until there is an opportunity urally the injector will have a duced delivery capacity.

It is therefore an object of our invention to provide an injector with means of a simple character which will secure the effective closing of the auxiliary water inlet when the gravity valve above referred to become-s leaky. u Y

somewhat re- Another object of our invention is to overcome certain diliiculties which have been experienced in keeping the seat of the' steam nozzle of the injector steam tight. In the usual construction of an injector, the steam has easy access to the seat made by this nozzle on the bridge separating the steam and water supply chambers and gradually eats away the metal on this seat, thereby after a time causing a to repair the leaky valve, although natleak which prevents.

the proper priming or Vstarting of the ap-v paratus. n

. lt is an object of our invention to remedy this defect and to thatl end we provide a form of steam nozzle which is provided with a tubular extension threaded into a tubular support andv with a shoulder adapted to engagey a flange onr such support to form a tightjoint at that place. Y

ln the drawings, there is illustrated a preferred form orfinjector embodying our inventions and in which-,

Figure 1 is a longitudinal central vertical' section of the apparatus, the operating han-y dle and some of the parts being shown in elevation; Fig.` 2 is an enlarged section of the steam nozzle and adjacent parts; Fig. 5 is an enlarged longitudinal vertical section and partial elevation 'of the inlet valve, and adjacent parts, the valve being shown in open position; Fig. 4 is a'view similar to Fig. 3, withthe valve shown in a closed position; and Fig.l section on the' plane ofthe line 5-5 in Fig. 4. v

In the drawings, 10 is the casing or body of an injector, 11 thesteam supply connection, 12 the water supply connection, 13 the overflow connection and 14 the connection leading tol the boiler. A valve 15 provided with a stem 16 operated by ahandle 17, controls the water inlet port. A steam valve* 1S having a stem 19 and operated by aliandlc 20, controls the entrance of the steam into the nozzles. An overflow valve Z1 is arranged to control the overow opening.

22 is a stem operated by a handle 23. 24 is the steam nozzle and 25 is the lifting steam nozzle threaded into'the steam nozzle 27, E28, 29 and SO arey the usual nozzles, and 31, 32, 33 and 34 the usual overflow openings between them.

35 is a back pressure valve arranged between the nozzle 30 and the boiler connection.`

36'is the steam chamber, 37 is the water-v supply ,chamber and 38 is the overflow chamber.V f

39Yis the auxiliary water inlet valve'housing containing the gravity valve ,'40 and which housing is formed integral with'the casing 10 and provided with a bridge 41 provided with aport 42 the lower edge 43 of which forms a seat for the upper side of.

Patented Sept. 7,1915. p

5 is a horizontal transverse the valve 40. The housing is provided with an inwardly extending annular liange 44 threaded and Lwith a second inwardly extending annular Hange 45 having a shoulder 46.

V ing 39vbeing apertured to permit of the pasvco recesses in the sage of the water. It is alsoprovided with an-annularvpartition 54 threaded Vinto the liange 44 and which `partition is suitably recessed to be slidably engaged by webs 55 formed on the stem 56 of the valve 40.' The lower surface of the valve 40 rests upon the partition 54A and seats thereon.

lithin'y the casing 50 there is arranged' a valve stem on spindle adapted to contact with the lower surface of the valve 40. Parts of the projecting ribs 58 between the annular partition 54 are truncated as shown at 65 see Fig. 5) the upper end or head 64 ofthe stem 60 can be inserted into the recess formed in the stem 565 The l isproa hexagonal/nut 7 0 whereby it adaptedv to compress suitable packing material 72 which maybe placed' therein.

As stated above, diflicultieshave been experienced in keeping'the seat ofthe steam nozzle of the injectorsteam tight because of the'fact thatf in the usual construction of an injector thefsteam has easy access to the de by such nozzleon the bridge or partition'whichis provided to separate the and this steam'gradually eats proper the apparatus. Themeans which we providel to overcome this condition is very sim ple. he steam valve a roundstern 75 whic is adapted to yenter the rearend ofi the steam nozzle'24, this valve being operated Izbovedescribed'.V They 18 has at its front end der referred to, steam nozzle having its external annular portion completely inclosed within and overlapped by the tubular extension of the partition or bridge between the steam chamber supply chamber, and the rela-` and the water tively large area of contact between the threaded surfaces effectually prevents the steam from leaking past the ends of the steam nozzle and cutting away the metal to cause a leak ashas heretofore occurred.`

The operation of the device is as follows: e steam valve is opened just enough to steam through the small ports used for that purpose without withdrawing the extension 75 from the interior of the nozzle 25. The steam then small openings and through the usual lifting steam nozzle vindicated 27 and the overflow opening 25 and nozzle valve 21, creating a suction or vacuum in the injector and drawing the water through the connection 12. As soon as water issues out of the overflow 13, the steam valve 18'is drawn back go. This opens the interior between nozzle as far as it 'will of the steam nozzle 25 and allows the full supply of steam to enter the nozzles 27, 28 and 29 and forces the water through the delivery nozzle 30, past the back pressure valve 35 and boiler connection 14, into the boiler. At high steam pressure, vacuum isV produced in the overflow chamber 38 which draws an additional suppl f of water into the nozzles, through the passage 53, valve housing 39 and port42, and openings 31, 32 and 33, which additional water is forced kwith the supply coming from the chamber 37, into the boiler, thereby increasing the Capacity'of the injector under usual conditions of operation. The positionA of the valve 40 when the additional supply of' lve in such a passes through i thek at 24, and the nozzleY manneras to` to pass through the housing ply chamber 37, thereby heating the water going into the nozzles unduly and preventing the starting of the injector. In such case, the valve stem or spindle ,'s actuated until the head 64 will press against the valve 40 and cause it to seat firmly against the annular edge 43 formed in the bridge 41, thereby closing the port 42 and preventing any steam from going back into the main water supply chamber 37. This is the position of the valve shown in Fig. 4. This actuation of the spindle 60 and supplemental valve 64 enables the continued use of the injector, with Y a somewhat reduced capacity it is true, but nevertheless an eiiicient use until there is an opportunity given to regrind or otherwise repair the gravity valve 40.

It shouldbe noted that the annular partition 54 of the casing 50 forms in eiect a water inlet port surrounded by a valve seat and that the bridge 41 Jforms in eiect another water inlet port 42 surrounded by a valve seat, and that the valve 40 moves between these two seats to close either port, its movement downward being by gravity an its movement upward being caused by the operation of the spindle 60, the upward movement being limited by the contact of the head 64 with the lower restricted portion of the valve stem of the valve 40.

We claim l. In an injector, a housing provided with a water inlet port and a water outlet port, a casing adapted to be received within the housing, a valve adapted to be moved to one of two positions within the housing, and means within the casing adapted to be moved against the valve to pos'tively bring it to one of two such positions.

2. In an injector, an auxiliary water supply chamber comprising a housing provided with two partitions each provided with an aperture constituting an inlet and an outlet port, a valve adapted to be moved to and Jfro with respect to such apertures, and means for guiding the valve in such movement.

8. In an injector, an auxiliary water inlet device comprising a housing provided with two partitions each provided with an aperture, a valve adapted to be moved to and fro with respect to such apertures and means for guiding the valve in such movement cornprising a valve stem provided with ribs and recesses formed in one partition adapted to be engaged thereby.

4. In an injector, device comprising a two partitions each an auxiliary water inlet housing provided with provided with an aper- Copies of this patent may be obtained for five cents each,v by addressing the ture, a valve adapted to be moved to and fro with respect to such apertures, in combination with means for moving the valve in one direction comprising a head inclosed by the valve and a stem secured thereto and adapted to be longitudinally moved by rotation.

5. In an injector,an auxiliary water inlet device comprising a housing provided with two partitions each provided with an aperture, a valve adapted to be moved to and fro with respect to such apertures, in combination with means for moving the valve in one direction comprising ahead inclosed by the valve and a stem secured thereto and threaded into the housing and a device for turning it.

6. In an ejector, an auxiliary water inlet device comprising a housing provided with two partitions each provided with an aperture, a valve adapted to be moved to and fro with respect to such apertures, in combination with means for moving the valve in one direction comprising a head inclosed by the valve and a stem secured thereto and threaded into the housing and a device for turning it including a nut having plane surfaces.

7. In an injector an auxiliary water supply chamber provided with two ports through which the water is adapted to pass and two optional means Jfor closing the ports, one automatic.

8. In an injector provided iliary water supply chamber, provided with an inlet and an outlet and a gravity valve adapted automatically to control the inlet of the same, and also adapted to positively close said outlet, in combination with means for operating said valve.

9. In an injector, n auxiliary water supply, o a valve adapted to control said auxiliary supply and adapted to be moved between'two valve seats.

10. In an injector, an auxiliary water supply, two ports through whichV the auxiliary water supply must pass in succession, in combination with a valve adapted to be seated against either port automatically by gravity against one port and hand actuated against the other port.

In testimony whereof we aiiix our signatures in presence of two witnesses.

LEOPOLD KASSANDER. I-IARRY L. LEVERETT. Witnesses:

ALBERT W. MORSE, HARRY NEvrLLn.

with an aux- Commissioner of Patents,

Washington, D. C.

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