US2044695A

US2044695A - Nozzle

Info

Publication number: US2044695A
Application number: US56471A
Authority: US
Inventors: Huss Henry
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-12-28
Filing date: 1935-12-28
Publication date: 1936-06-16
Anticipated expiration: 1953-06-16

Description

Junev 16, 1936. H. Huss 2,044,695

NOZZLE Filed Deo. 28, 1935 QQ/mmm ATTORNEYS.

Patented June 16, 1936 UNITED STATES PATENT OFFICE NOZZLE Henry Huss, Greenwich. Conn.

Application December 28, 1935, Serial No. 56,471

5 claims. (ol. 299-120) This invention relates to atomizing nozzles or tips. and provides a nozzle or tip which is particularly well adapted for use in oil burners in which the oil is delivered under high pressure.

One of the objects of my invention is the provision. of a nozzle construction embodying a nozzle body containing a member equipped with an ejection orifice and with a swirl chamber. a distributor head and a threaded stem, my improved lo construction providing for accurate positioning of these members in the nozzle body and relatively to each other.

ln devices of this character dimensions are very small, and for full efficiency of the device it is l5 necessary that the partsV shall be exactly positioned. Also in such devices it is exceedingly' dimcult to prevent slight eccentric motion ci the threaded stem, which is likely to cause misalignment. This is avoided in the present construc- 20 tion in that the member which is equipped with an ejection orice and with a swirl chamber floats, i. e., is capable of slight lateral movement in the nozzle body so as to permit the distributor head properly to seat itself regardless of 2.3 any eccentricity in the threaded stem. If desired the distributor head too may oat thereby further insuring exact positioning of the distributor or distributor head in relation to the swirl chamber and ejection orice. 3o In the accompanying drawing I` have shown two embodiments of my invention:

Fig. 1 showing in part sectional elevation one embodiment of my invention; and

Fig. 2 a modification. 35 Referring to the drawing in detail and rst of all to Fig. 1, the nozzle body, designated I, is

provided with a discharge orifice 2 at its front end, shown as at the apex of a flaring recess 3.

In the frontend of the bore of the nozzle body 40 I is a member 4. This member is a loose fit in f the nozzle body as will be seen from the drawing, where a space 5 is shown between the member and the `walls of the bore of the nozzle body. It is to be understood that the outside diameter lof the 45 member 4 is several thousandths of an inch less i than the inside diameter of the bore of the nozzle body which receives it, to insure provision for lateral play of the member in the nozzle body.

The space 5 shown in the drawing is somewhat 50 exaggerated for purposes of illustration.

The member 4 at its rear end is beveled or recessed as shown at 6, this recess merging into a swirl chamber s and an ejection bore 1 extendin longitudinally of the setting member.'

55 Threaded into the nozzle body is a screw stem 8 the lower end of which is beveled as shown at 9 to correspond in form to the recessed face of the member 4. This beveled stem-end is provided with tangential grooves i which conduct and direct the oil, or other material to be atomized, to the swirl chamber. This beveled and grooved stem-end constitutes a distributor or distributor head.

`The threaded portion of the stem 8 and which I will designate il is somewhat enlarged in di- 10 ameter with respect to the remainder of the stem.

\ The stem is provided with a longitudinal and cross-bore l2 for the passage of the material to be atomized from a suitable source of supply.

' It will now be apparent from the foregoing that 15 by making the member i a loose iit, i. e., a floating fit in the nozzle body the distributor or distributor head will always be brought into precise and exact seating positionin the recessed face of the member Il. regardless of any eccentric motion of the stem 8 such as referred to at the outset of this description. Inother'words, when the stem 8 is screwed inwardly of the nozzle body to bring the distributor into engagement with the recessed face 6 of the member 4, the latter 25 being a oating flt in the bore of the nozzle body,

is free `to be displaced laterally sumciently to insure seating of the distributor head uniformly against the recessed face of the member 4, irrespective of any slight eccentric movement of the stem. Not only does this insure discharge of the material being atomizedin la perfect cone, but it insures that the material of the cone will be uniform. In the burning of oil, using nozzles of the general type herein described, improper seating of the distributor head in the recessed face of the member 4 allows more oil to move toward the swirl chamber along one side of the distributor head than the other, and this is reflected in the discharging material and as the same is burned, atomization not being uniform and the flame spotty and unsatisfactory.

The embodiment of my invention illustrated in Fig. 2 is quite similar to that just described. In this construction the nozzle body I is provided -with a discharge orifice 2'. Located in the bore of the nozzle body is a member 4' corresponding to the member 4 of Fig. 1, this member, as illustrated having a floating fit in the nozzle body core.

|4de'signates a oating distributor or distribu- 50 tor head located in the nozzle body above the member 4', the end of this distributor being beveled or tapered as shown at 9' to fit the recessed rear face 6 of the member 4. The recess in the rear face of the `member 4 merges into a swirl 55 chamber s and ejection orifice 1' in the member 4'.

8 designates a threaded stem similar to the stem 8 of Fig. 1 in that it is provided with longitudinal channels I2', but in this embodiment of my invention the stem is not integral with the distributor. In other words, the member 4 and distributor i4 in this construction are free to have lateral movement relatively to each other as well as relatively to the stem 8.

It will now be apparent that when the stem 8 is screwed inwardly of the nozzle body into engagement with the distributor, the lateral play permitted so far as the distributor and the member 4 are concerned will promote precise seating of the tapered face of the distributor in the recessed face of the member 4' despite any eccentric motion of the screw stem such as above referred to, a condition. which as above pointed out is not only desirable but essential.

While as above explained my improved construction provides for precise and exact alignment of the parts of the nozzle, it also provides another advantage in that in the construction of Fig. 1 the member 4 may be readily replaced at the minimum of expense, while in the construction of Fig. 2 any of the parts can be replaced independently of the others.

What I claim isz- 1. An atomizing nozzle comprising a body having a discharge orifice, a floating member in said body, adjacent said discharge orifice, provided with an ejection orifice communicating with said discharge orifice and with a tapered swirl chamber to the rear of said ejection orifice, said floating member being further provided with a tapered surface at the rear of said swirl chamber, a distributor in the said nozzle body having a tapered face corresponding in form to and fitting against said tapered surface, said distributor face being provided with whirl-producing grooves communicating with said swirl chamber, and a screw stem in the body behind said distributor for coaction with the distributor, said stem being provided with a channel for the passage of the material to be atomized Valong said stem to said distributor.

2. An atomizing nozzle comprising a body having a discharge orifice, a floating member in said body, adjacent said discharge orifice, provided with an ejection orifice communicating with said discharge orliice and with a tapered swirl chamber to the rear of said ejection orifice, said floating member being further provided with atapered surface at the rear of said swirl chamber, a distributor in the said nozzle body having a tapered facecorresponding in form to and fitting against said tapered surface, said distributor face being provided with whirl-producing grooves communicating with said swirl chamber, and a screw stem in the body behind said distributor and rigid with the distributor, said stem being provided with a longitudinal channel for the passage of the material to be atomized along said stem to said distributor.

3. An atomizing nozzle comprising a body havlng a discharge orifice, a floating member in said body, adjacent said discharge orifice, provided with an ejection orice communicating with said discharge orifice and with a tapered swirl chamber to the rear of said ejection orifice, said floating member being further provided with a tapered surface at the rear of said swirl chamber, a oating distributor in the said nozzle body having a tapered face corresponding in form to and fitting against said tapered surface, said distributor face being provided with whirl-producing grooves communicating with said swirl chamber, and a screw stem in the body behind said floating distributor for coaction with the distributor, said stem being provided with a longitudinal channel for the passage of the material to be atomized along said stem to said distributor.

4. An atomizing nozzle comprising a body having a discharge orifice, a member in said body, adjacent said discharge orifice, provided with an ejection orifice communicating with said discharge orifice and with a tapered swirl chamber to the rear of said ejection orifice, said member being further'provided with a tapered surface at the rear of said swirl chamber, a distributor in the said nozzle body having a tapered face corresponding in form to and tting against said tapered surface, said distributor face being provided with whirl-producing grooves communieating with said swirl chamber, and a screw stem in the body behind said distributor for coaction with the distributor, said stem being provided with a longitudinal channel for the passage of the material to be atomized along said stem to said distributor, said first mentioned member and said distributor being free to have lateral play with respect to said stem.

5. An atomizing nozzle comprising a body having a discharge orifice, a member in said body, adjacent said discharge orifice, provided with an ejection orifice communicating with said discharge orifice and with a tapered swirl chamber to the rear of said ejection orifice, said member being further provided with a tapered surface at the rear of said swirl chamber, a distributor in the said nozzlebody having a tapered face corresponding in form to and fitting against said tapered surface, said distributor face being pro-` vided with whirl-producing grooves communicating with said swirl chamber, and a screw stem in the body behindsaid distributor for coaction with thedistributor, said stem being provided with a longitudinal channel forthe passage of the material to be atomized along said stem to said distributor, said first mentioned member and said distributor being free to have lateral play with respect to said stem and relatively to each other.

HENRY HUSS.