|Publication number||US1895047 A|
|Publication date||Jan 24, 1933|
|Filing date||Jun 15, 1931|
|Priority date||Aug 9, 1930|
|Publication number||US 1895047 A, US 1895047A, US-A-1895047, US1895047 A, US1895047A|
|Original Assignee||Rudolf Neumann|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (7), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Jan. 24, 1933. R M N 1,895,047
GAS PRES SURE REGULATOR Filed June 15. 1931 KKK Jjaae zzhrs -7214 Joy yearn/2n W Patented Jan. 24, 1933 UNITED STATES PATENT OFFICE RUDOLF NEUMANN, OF BERLIN-CHARLOTTENBURG, GERMANY GAS PRESSURE REGULATOR Application filed June 15, 1931, Serial No.
I the pressure prevailing behind it. With regulators of this design it has been found that with great gas consumption the throttle valve does not open to a suflicient extent so that the pressure decreases at the place of gas consumption. Therefore it has already been proposed to compensate for this drawback by reducing as far as possible the gas pressure below the diaphragm to which end a simple nozzle is made use of the smallest passage area of which communicates with the spacebelow the diaphragm so that a greater sucking action is produced when large quantities of gas pass through the nozzle than with the passage of small quantities. This increased sucking effect is then transmitted to the space below the diaphragm whereby an additional opening of the valve is obtained when great quantities of gas are consumed.
Now my invention has for its object to improve the means that bring about this sucking action. For it has been found that a satisfactory nozzle of this design must have a considerable length. Furthermore, in order to obtain at all a satisfactory sucking effect of the nozzle, careful machining of the passage thereof is required. Now by the use of such a simple nozzle, indeed, an additional 0 opening of the throttle valve is obtained, but
* this additional opening is not suflicient to cause an increase of pressure at the delivery end of the regulator, at themost uniform pressure being produced in so far as the increased losses of flow are compensated for 0 within the regulator.
According to my invention a so-called multiplying nozzle is made use of in lieu of the above-mentioned very long simple nozzle which multiplying nozzle is composed of two or more nested small nozzles. This multiplying nozzle not only possesses a notably smaller structural length but also a far greater sucking effect which not only enables to F cover the losses of flow within the regulator but also to obtain an increase of pressure at 544,660, and in- Germany August 9, 1930.
the exit thereof. This increase of pressure is desirable because with great gas consumption the losses due to friction increase in the piping up to the place of consumption. For,
with uniform pressure at the exit of the regulator these losses would cause decrease of pressure at the place of consumption, while a unlform pressure is obtained here by the increase of the pressure at the exit of the regulator, as it is the case with the arrangement according to my invention.
My invention further provides to improve regulators of this design by each of the individual nozzles through a duct communicating with the regulating chamber of the diaphragm, which ducts can be opened and closed independently on one another. This arrangement enables to regulate the sucking action at the exit of the regulator at will.
In order that my invention may be clearly understood and readily carried into effect, two embodiments of the same are illustrated by way of example in the drawing which accompanies and forms part of this specification and in which Figure 1 is a vertical section of a gas pressure regulator designed in accordance with my invention,
Figure 2 is a section of the exit end of this regulator on an enlarged scale,
Figure 3 is a horizontal section on line IIIIII of Figure 2,
Figure 4 is a section similar to that of Figure 2 and shows the other embodiment of my improved regulator in which each of the individual nozzles by a duct communicates with the regulating chamber, and
Figure 5 is a section on line V-V of Figure 4. I
Referring first to Figures 1 to 3, the entrance socket of the regulator is denoted by 10, while 11 denotes a throttle valve with its seat 12. Valve 11 is carried by a stem 13 to the upper end of which is fixed by pin and eye connection 1,. a disc 14 surrounded by a diaphragm 17 and carrying aweight 16. The diaphragm 17 and weight 16 are protected by a cover 18 which has an aperture 19 leading to the outer air.
A further diaphragm 20 is fixed to the stem 13 below diaphragm 17 so that a chamber 21 is formed by these two diaphragms and the casing 22, the latter being screwed or fixed in any other suitable manner to the casing part 5 carrying the entrancesocket 10.
As will be seen, the incoming as is throttled by valve 11 and then enters 51c deliver socket 23. Within this socket are dispos in such a mannerthat the effect of the wellknown multiplying nozzle is obtained. These nozzles by a duct 29, and 27, the latter provided in the wall of socket 23, communicate with the chamber 21 formed by the dia- 16 hragms 17 and 20 and forming the controling chamber of the regulator. The more gas flows through the exit of the regulator, the greater is the suction and the more gas is sucked from chamber 21 so that the weight 20 19 sinks whereby valve 11 is opened to a greater extent.
' The individual nozzles are preferably carried by sheet metal brackets 28, see Figures 2 and 3, which project from the wall of part 25 23. In the embodiment shown only the nozzle 24 is connected by the duct 29, and 27. to chamber 21, while in the other embodiment, Figures 4 and 5, four individual nested nozzles 30, 31, 32, and 33 are arranged each of which communicates by the ducts 34, 35, 36,
and 37, respectively, with chamber 21. Regulating screws 38, 39, 40, and 41 allow throttling of the ducts 34-37, Figure 5. Accordin to which suction is required at the exit o 85 the regulator, either the duct 34 of nozzle 30 or, with the smallest suction, duct 37 of nozzle 33 is opened by setting the respective screw. These manipulations enable so to adjust the increase of pressure at the exit of the 40 regulator as required due to the length of the pipe leading from the regulator to the place of consumption that the pressure at the latter remains uniform.
. Furthermore, I attain the following further possibility of regulation by means of the I arrangement illustrated in Fi res 4 and 5: I may open for instance the ducts 34 and 37 that is the nozzles producing the strongest and lowest sucking effect so that these two nozzles act in unison upon the chamber 21.
This results in the fact that when great quantities of gas flow through the regulator it is nozzle 30 which acts at the beginning and effects strong suction from chamber 21, which suction is then slowly reduced through duct 34 of nozzle 33. ThlS effect is desirable for instance when a further gas flame is to be lighted to which end the regulator is to deliver temporarily the gas under increased pressure.
What I claim and desire to secure by Letters .Patent is 1. A regulator of the class described comprising a regulating chamber formed by two several nested nozzles 24, 25, and 26 ed u on by the pressure prevailing behind the re u lator, a throttlevalve cooperable with this diaphragm, the other diaphragmbelng adapted to shut ofi said chamber against the entrance ressure, at least two nested nozzles disposed ehind said throttle valve, and a communication from at least one of these nozzles to said regulating chamber.
2. A regulator of the class described com: prising a regulatin chamber formed by two diaphragms one 0 which is adapted to be acted upon by the pressure prevailin behind the re ulator, a throttle valve coopera le with this 7 aphra gm, the other diaphragm being adapted to shut off said chamber against the entrance pressure, a plurality of nested .nozzles disposed behind said throttle valve,
and a separate communication from each of said nozzles to said regulating chamber.
3. A regulator of the class described comprising a regulating chamber formed by two diaphragms one of which is adapted to be acted upon by the pressure prevailing behind the regulator, a throttle valve cooperablewith this diaphragm, the other diaphragm being adapted to shut off said chamber against the entrance pressure, a plurality of nested nozzles disposed behind said throttle valve, a separate communication from each of said nozzles to said regulating chamber, and means for separately shutting ofi said separate com- .munications.
In testimony whereof I have aflixed my signature. I
, RUDOLF 'NEUMANN.
-06 diaphragms one of which is adapted to be act-
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|U.S. Classification||137/484.8, 261/64.3, 73/861.63, 138/44|
|International Classification||G05D16/00, G05D16/02|