US 3301273 A
Description (OCR text may contain errors)
A. MON ATH VOLUME GOVERNOR Jan. 31, 1967 Filed Feb. 25, 1964 HV VEN TOR 7av Fig4 pum/.ST MOAIHTH Bf my wwd/ United States Patent 3,301,273 VGLUME GOVERNOR August Monath, 8 Morellstrasse, Augsburg, Germany Filed Feb. 25, 1964, Ser. No. 347,301 Claims priority, application Germany, Feb. 28, 1963, M 55,931 2 Claims. (Cl. IS7-624.15)
The present invention relates to Volume governors, and more particularly to governors for mixing streaming fluids, such as liquids and gases, in a predetermined, easily adjustable mixing proportion.
It is `an object of the invention to provide a volume governor which may *be driven at any desired number of revolutions, thereby permitting to control the fluid volume independently of its speed of rotation.
According to the present invention the volume governor comprises a rotor formed by a body of revolution and secured to a rotatable shaft supported within a two-part housing, said rotor having two axially displaced radial ducts extending in diametn'cally opposite directions, each duct cooperating with one of said housing parts, an annular space being provided between said housing and said rotor subdivided in four compartments by means of a rotatable ring provided with axially extending distributing bars, and two web members, said compartments being connected on the one hand to two inlet ducts, and on the other hand, over central bores to two outlet ducts.
This volume governor may -be mounted in series with any type of pump, for example with a centrifugal pump. It also can be mounted on either the inletor the outletside f the pump, without requiring to rotate in synchronism with the pump.
Furthermore, the volume governor according to the invention may be constructed for controlling small and great fluid volumes, ya governor of a given size having a wide range of operation and is adapted to handle relatively great and small volumes.
The governor operates without any pulsation; whether it is mounted on the suction side or the pressure side of the pump, and without any pressure loss. The selected mixing proportion is not dependent on the pressure and the number of revolutions.
The invention is fully disclosed in the following specification of which the accompanying drawings form a part and represent a preferred embodiment given merely by example, and in which,
FIGURE 1 is an axial section through a volume governor according to the invention;
FIGURE 2 is a transverse section along the line I-I of FIGURE 1;
FIGURE 3 is a transverse section along the line II-II of FIGURE 1,
FIGURE 4 is a detail of the governor shown in FIG- URE 1, 'and FIGURE 5 is a transverse section through the governor along the line V-V of FIGURE 1.
A two-part cylindrical housing forming a body of revolution comprises two symmetrical halves 1n and 1b. Each half is provided with three pipe connections 2a, 3a, 4a and 2b, 3b, 4b, respectively. Both housing parts 1a and 1b are secured together and held in spaced relationship by means of a sealing and spacer-ring 6. A rotor 10 is keyed to a shaft 9 supported within the housing 1a, 1b. Annular chambers 14a, 14h are provided between the rotor 10 and the inner sides of the housing parts 1a and 1b. Each chamber 14a and 14b is subdivided in two compartments by means of two axially extending iixed webs a and 5b, respectively, yarranged between the pipe connections 3a and 4a (FIG. 2) and 3b and 4b, respectively. Furthermore the annular chambers 14a, 14h are separated by a rotatable adjusting ring 7.
Wormgear teeth 7a are arranged along the circumference of ring 7, iand cooperate with a regulating worm 8 having its shaft 15 sealingly mounted in the spacer-ring 6. On turning the worm 8, the adjusting ring 7 may be placed in any desired angular position. The adjusting ring 7 is provided with two axially extending bars 28, forming a sealing or distributing member which together with said webs 5a and 5b subdivideseach of the annular chambers 14a and 14b in two compartments 14a', 14a and 14b, 1417, respectively, as represented in FIGURES 2 and 3.
The rotor 10 is provided with two axially displaced radial slots or ducts 11a, 11b extending outwardly in diametrically opposite directions and communicating with one of the rooms 14a or 14a, and 14b or 14b respectively, and `with the bores 12a and 12b, respectively surrounding the shaft 9.
The volume of the rooms 14a', 14a, or 14h', 14h respectively, is determined by the position of the distributing member 28 which can be angularly displaced lby means of ring 7 and worm gear 7a, 8 in one or the other direction shown by the arrow in FIGURES 2 or 3. Thus, it is possible to sub-divide each of the chambers 14a and 14b into compartments 14a', 14a" and 14b, 14b", respectively of any desired volume relation.
The described volume governor operates as follows:
(a) The governor is supposed to operate as a mixing unit.
In this case the pipe sockets 3a and 4b are connected to the suction pipe of a pump, e.g. a centrifugal pump which connections Za and 2b each lead to a container, filled with the fluids which have to be mixed. The pipe sockets 3b and 4a also are connected over suitable return conduits with the said containers. (The return conduits are not required if the fluids are not supplied to the governor under pressure).
When the distributing member 28 is angularly displaced exactly through with respect to the webs 5a and 5b (FIG. 2), the resulting mixing proportion of the lluids supplied to the pump is 1:1. When the member 2S is exactly situated in front of the connection 4a (represented in dotted lines in FIGURE 2) so as to prevent any communication between the compartment 14a and the socket 4a, the whole volume supplied consists of one fluid only, while the other fluid does not participate in the process. If the member 28 is exactly in front of the connection 3a, the whole volume ofthe second fluid is supplied, while the other one does not participate in the process. By choice of a suitable position of the distributing member 28 between these two extreme positions, any desired mixing proportion can be obtained.
(ib) The governor is supposed to operate as a specific volume governor, i.e. it is not used for mixing two different fluids.
In this case the conduits 2a and 2b are connected in parallel to the pressure side of a pump, while the sockets 3a and 3b are connected in parallel to a consumer, and the sockets 4a and 4b are connected in parallel to a second consumer. As in the preceding case, the volumes of the annular chambers are also adjusted simultaneously by the member 28.
1. A volume governor for streaming fluids, particularly for distributing quantities of liquids or gases in any predetermined proportion, comprising a generally cylindrical housing, a rotatable shaft axially extending through said housing, a rotor on said shaft, said rotor being of smaller radius than said housing to provide an -annular clearance between the rotor and the housing, the housing Ibeing divided along a radial plane in two similar halves, said rotor having two .axially spaced radial ducts angul'arly displaced through 180 and opening into said annular clearance between said rotor and said housing an adjusting ring surrounding said rotor and rotatably mounted between adjacent faces of said two housing halves, two sealing and 4distributing bars carried by said adjusting ring and extending oppositely in axial direction in said clearance between the rotor and both housing parts to prevent communication between the two portions of the clearance space separated by said bars, the inner ends `of said two radial ducts in the rotor each communicating with a uid supply duct, two pairs of fluid delivery connections cornmunicating with said .annular clearance between the rotor and the housing, andan axially extending web situated in said annular clearance and between said two pairs of delivery connections to prevent communication between the two pairs of connections.
2. A Volume governor as claimed in claim 1 in which said two housing parts are held in spaced relationship by means of a spacer-ring, a regulating worm carried by said spacer-ring, `and worm gear teeth yon said adjusting ring, which teeth mesh with said regulating worm.
References Cited by the Examiner UNITED STATES PATENTS 2/1923 Barnebl 137-625.11 2/1964 Huxley IS7-637.5 X