CH292178A - Sealing device. - Google Patents

Description

Sealing device. The present invention relates to a device for ensuring the #ta-neh#it,6 of an enclosure refilled entirely with liquid and comprising a port for communication with the outside.

The device according to the invention is earae- thisg by a path of communication eapil- MireTune ertain length between the int#rieiir of Feneeinte, which one wants to ensure I'gtan- eligit6, and the extArie-Lir, said liquid having in the path eapillary communication a surface tension ini6rieure <B>ä</B> eelle in Foriflee <B>ä</B> through Iequel we want to prevent the 6eouleme-nt of the liquid, so that, during a eertain exA of pressure of the liquid filling Veneeinte, it tends <B>ä</B> ,#,'enn,ao,er in the capillary path which, <B>du</B> was from its long-Lir, absorbs the excess pressure of the liquid without allowing it to spill out.

The drawing in appendix 6 represents, <B>ä</B> as an example, various embodiments of the subject matter of the invention.

fig. <B>1</B> represents a first embodiment of a device ensuring the stability of an enclosure with respect to the ambient environment.

Figure 2 represents a device for balancing a speaker with respect to a neighboring speaker in communication with the outside.

fig. <B>3</B> represents seligmatically in vertical section a counter provided with a sealing device established in accordance with <B>ä</B> the invention.

fig. 4 represents in vertical section another embodiment of the invention.

fig. <B>5</B> represents, semantically, a terminal bearing for a rotating shaft. fig. <B>6</B> schematically represents in cross-section an intermediate bearing for a shaft with an alternating axial movement.

fig. <B>1</B> represents an enclosure <B>1</B> comprising an opening allowing passage of any organ <B>3,</B> this organ forming an annular path 4 narrowly with Forified 2 The enclosure <B>1</B> is filled with a liquid<B>5.</B>

It is a question of eliminating any Imitation of the liquid<B>5</B> by the annular space tAs narrow mgnagg between the organ <B>3</B> e.t the edge of Foritice 2.

To prevent any leakage of this liquid <B>ä</B> through the orifice 2, a capillary communication path <B>6</B> has been provided having, for example, the shape of a serpentine, of mankre <B> ä</B> ensure communication between the inside of tank <B>1</B> and the outside. This capillary communication path <B>6</B> has a section large enough for the capillary tension of the liquid in this path to be less <B>ä</B> its RTI ID="0001.0267" WI=" 11" HE="4" LX="1265" LY="2072"> capillary tension in the mgnagg path between the organ <B>3</B> and the peripheral wall of Porifiee 2 in which the said organ penetrates <B>3.</B>

The Tone device operates in the following manner: When the pressure of the <B>ä</B> liquid <B>5</B> increases (dilation), this liquid will flow out, from pr#f# ence, by 19orified where the path is the easiest, that is to say, by the capillary coil <B>6</B> whose section is larger than that of Forified 2 and whose length is such that it can absorb the excess of liquid without it pouring <B>A</B> outside.

As a result, no flow of liquid will take place between the crown of the capillaries between the organ <B>3</B> and the orifice 2, into which the organ <B>3 enters.</B>

This arrangement thus makes it possible to ensure I'gtanehgit6 of Peneinte, without that it is called <B>ä</B> all device of total closing of Fespaee 4 m#nag6 between the organ <B>3</B> and its passage opening 2.

fig. 2 represents another mode of realization to obtain the gtanehAitA of a enclosure <B>1</B> communicating by an orifice 2 with the second tank <B>7,</B> in communication with FatmospUre by an orifice <B>8.</B> The orifice 2 is traversed by an organ 3 which forms with the peripheral wall of this orifice a space 4 of very small papillary section.

In the same way as in the device of FIG. <B>1</B> to ensure the required seal and prevent any heaps of liquid in the space 4, one arranges between the enclosure <B>1</B> filled with liquid <B>5</B> and the enclosure <B>7,</B> a path of epileptic lineage <B>6</B> in which the epipalillary tension of the liquid is less than the epipalillary tension existing in space 4.

As previously indicated, the length of the capillary path <B>6,</B> constituted in a manner before,-,euse by a coil, is such that 11 can absorb a certain excess of healthy liquid, that this one is pours into window <B>7.</B>

As in the previous case, when the fluid<B>5</B> expands due, for example, <B>A</B> to swelling, the fluid will pass from now on into the capillary path <B >6,</B> instead of passing in the space 4 mgnagg between the organ <B>3</B> and the passage orifice of said organ <B>3.</B> The invention can also allow, <B>3</B> >ä</B> Liter example, to introduce in an enclosure <B>1</B> a pipe such as <B>3,</B> "#unless it is necessary to ensure the 6t-itilehgit6 de Fen- einte to weld said myauterie to the walls of Forifiee 2 through which it is introduced.

The meter shown in Figs. <B>3</B> and 4 have a gold,-lane meter eoii#., titu6 by a turbine 41 rotating according to the speed of the liquid which crosses Feneeinte <B>33,</B> RTI ID=" 0002.0273" WI="7" HE="4" LX="1121" LY="658"> in which this turbine is placed. This enclosure <B>33</B> receives, via an inlet pipe <B>37,</B> the liquid whose flow rate is to be measured, this liquid then leaving the enclosure via a pipe of start <B>38.</B> Between the chamber <B>33</B> comprising the turbine 41 and the arrival pipe <B>37</B> is interposed a member called the starter member and econstituted by um Mobile equipment <B>39 ä</B> low section axial channel <B>10.</B> This mobile equipment is normally returned by a spring <B>11,</B> closes off the inlet tabulure <B >37,</B> so that, as long as the liquid arrives at a low flow rate and therefore under low pressure, the mobile unit is maintained on its Seat 12 and the liquid passes through the axial channel<B> 10</B> before going to the measuring device such as turbine 41.

The section <B>of</B> the axial flow being low, the speed of the liquid<B>ä</B> measuring at the same time, so that the turbine 41 will turn despite the low speed of arrival. liquid in the inlet pipe <B>37.</B>

When the speed of the liquid decreases, its pressure also decreases and the mobile equipment, under the aetion of this pressure, moves along the Flache fl, by compressing its return spring <B> >11,</B> and Establishes communication between the inlet pipe <B>37</B> and the conduit <B>33</B> containing the measuring components. The turbine <B>1</B> is mounted on the vertieal axis <B>13</B> running in a lower bearing 141 and in the upper bearing 142. The back of each bearing has sapphires <B> 1.51,</B> 15-, involving an aeonic wear <B>16</B> receiving the aeonic ends <B>17</B> of the vertical shaft <B>13</B> of the tur- bine 41. This arrangement makes it possible to considerably reduce the friction of the axis of the turbine and, consequently, to improve the sensitivity of the measuring device. The shaft of the turbine also includes a pinion <B>18</B> meshing with the toothed wheel Line <B>19</B> integral with the shaft<B>035</B> transmitting the movement of the i rotation of the turbine <B>ä</B> the timer <B>32</B> located (Iails Feneeinte 34. Eneneeinte 34 is filled with iceproof Imile and there<B>y</B > instead of preventing any oil leak from Feneeinte 004 containing the timer towards Feneeinte <B>33</B> containing the hirbine by the path that this Iluile could find in Forifiee de passage de Faxe <B >35</B> transniettallt I movement of the turbine <B>a</B> the timer.

The <B>35</B> axis passes through a ring-shaped communication hole between end <B>33</B> and hole 34. This ring-shaped hole has dimensions such that it leaves, a having the shape of a circular crown 20. The section of this circular crown is such that the capillary tension or surface tension in this circular crown is sufficient to absorb any oil stream normally (Ians Feneeinte <B>33;< /B> moreover, the enclosure 034 (-oinniiiilic avee Eneeinte <B>33</B> by a Ion-iie tubing 21 in the form of spiral having a very weak section, but larger than the passage section in the shape of an annular crown surrounding the shaft<B>35, so that the capillary tension of the oil in the tube 21 is lower than that in the crown-shaped ring 20. Due to the capillarity of the tube 21, the oil normally will not flow from Veneinte 34 to the lower end <B>30'.</B> On the other hand, if the oil pressure at,-,ment in Veneinte 34 (dilation by following heating), it will be prUgrenée by Forifiee where the path is weakest, that is to say by the, capillary coil 21 of more 011ande section and whose length , 'it can absorb a certain exAs of oil without it-ei reaching into the irif(#rieiire <B>j3.</B> daiis the crown eire-Lilaire 20 surrounding Ftirbre <B>35.</B>

On the other hand, the liquid <B>ä</B> to be measured will not have fenclanee <B>ü,</B> to rise in Feneeinte superior #- rietii-e 34 by the coil 21, since Fen.- girded 34 is eompIkement filled with oil which is incompressible. There<B>there</B> thus has absolute consistency between the enclosure <B>33</B> containing the measuring device such as the turbine 41 and the enclosure 34 containing the timer. This #watertightness is ensured <RTI ID="0003.0275" WI="7" HE="4" LX="1168" LY="409"> while removing the cable glands usually -Litilised and, therefore, by canceling the transmission fax friction <B>35</B> of the movement of the measuring organ 41<B>ä</B> the timer.

This arrangement therefore allows greater sensitivity of the measuring device and also allows: a) the use of all materials, even oxidizable, for the organs of the timer <B>32; )</B> the reduction in the volume of the organs and consequently the reduction in the size of the Lir-count; c) non-freezing meter by using non-freezing oil.

It can be feared that at very high flow rates, the turbine 41, rotating relatively quickly, has tended <B>A</B> to create suction in the coil 21 by its end which emerges in the enclosure <B>33</B > of said turbine 41.

<B>A</B> For this reason, the arrival of the coil 21 in the enclosure <B>33</B> is protected by an epot 40 to an orifice 43. The pressure of this eapot lessens the effect; aspiration.

Many modifications can be made to the above counter without departing from the scope of the invention. In particular, the capillary pathway 21, instead of directly connecting the upper chamber <B>32 to</B> the inner chamber <B>33,</B> can be branched, as indicated in FIG. 4, in the bore <B>36</B> for transmitting the movement of the turbine 41 to the clockwork mechanism <B>32.</B>

<B>A</B> this effect (fig. 4), a fur <B>30</B> entoLire Faxe <B>35</B> providing the papillary path 20 between said furr-are and Faxe <B>35.</B> This fur only fills in height a i part of PaMsage <B>36.</B> The capillary path 21 starts <B>A</B> directly above the fur <B >30</B> and d6bo-Liehe in Falgsage <B>36</B> under this cover.

The bearing shown in fig. <B>5</B> is composed of a body <B>51</B> comprising an opening <B>512</B> traversed by a tree <B>53</B> animated by a motivation rotation. <B>A</B> The end of the <B>51</B> eorps is made a 54 eavit6 with the <B>ä</B> ball bearing <B>55 ä</B> crown rotary <B>56</B> and fixed crown<B>57.</B> This eavit6 54 is filled with a 1-Lubricating liquid such as oil.

To prevent any leakage from the wing of the evacuated outward in the narrow passage mgiia.-6 between the tree <B>53</B> and the periphery of Forifiee <B>52,</B> a eheinin of epipal eommlinication < B>58,</B> having the shape of a serpentine, provides communication between the eavit6 54 and the ext6rieLir. This communication path has a section large enough for the capillary tension of the liquid<B>y</B> to be less <B>ä</B> than the capillary tension on the path between the shaft<B>53</ B> and the peripheral wall of Forifiee <B>52</B>, into which Farbre<B>53 enters.</B>

The device works as follows: When the oil pressure <B>ä</B> inside the valve 54 increases (dilation due to heating), this oil will Preceded by Forifiee where the path is easiest, ast-say by the capillary coil <B>58</B> whose section is stronger and whose length is such that it can. absorb a certain excess of oil without it spilling <B>ä</B> outside. As a result, it can be ensured that no oil flow will occur in the crown between the shaft <B>53</B> and Forified <B>52</B> in Which p#nkre this tree.

This arrangement thus makes it possible to ensure the tightness of the bearing while eliminating the glands normally used and, consequently, by eliminating the friction of the shaft<B>53</B> and with a limited quantity of lubricant.

fig. <B>6</B> represents another mode of realization of an intermediate bearing for a shaft <B>53</B> animated by an alternating axial movement.

This landing is made up of a body <B>51</B> comprising two orifices <B>521,<U>52.</U></B> for the passage <B>5</B> of the tree<B >53.</B> This body <B>51</B> has an internal cavity 54 filled with oil. To prevent any oil leaks <B>ä</B> through the ports <B>521,<U>52.,</U></B>, one cleans for each of these ports <B>521,< /B> 52). a capillar eommunieation ehernin <B>581,<U>58..</U></B>

The surface tension of the liquid in each of these capillary communication channels is less <B>ä</B> than the surface tension existing in each of the annular passages <B>521, 52-2.</ B> On the other hand, the length of these hair paths advantageously constituted by the serpentine Lin is such that it can "1238" LY="620"> absorb a certain exe#s of oil without it diversifying <B>ä</B> outside.

As in the previous case, during a dilation due for example <B>ä</B> to a heating, the oil will pass from preference in the elimina apillaires <B>581,</B> 58", au instead of passing through the annular spaces <B>521, 522.</B>

Claims (2)

CLAIM: Device for ensuring the etaneli#it# of an enclosure filled entirely with liquid and comprising a port (4) for communication with the outside, stretched by a capillary communication path <B >(6)</B> A certain length, between the inside and the inside of the window (1), the integrity of which is to be ensured, and the outside, said liquid having - capillary denial of a lower surface tension <B>ä</B> eelle in Forifiee (4)<B>ä</B> through which we want to enipkIier the flow of the liquid<B>(5),< /B> so that, during a certain exe#s of pressure of the liquid filling Feneeinte <B>(5),</B> eelni-ei tended <B>ä</B> to engage in the capillary path which, due to its law, absorbs the ex(##s of Fluid Pressure, without allowing it to diversify outwards. SUB-CLAIMS: <B>1.</B > Device according to claim, characterized in that the epidermal eliemin <B>(6)</B> is constituted by a coil. 2. Device according to sub-claim <B>1,</B> earaet6ris6 in that the coil is placed <B>ä</B> Fintgrieur Feneeinte whose 6taneh#it# is to be assarer. <B>3.</B> Device according to claim, applied <B>ä</B> a liquid meter comprising a metering member (41) arranged in an enclosure <B>(33)</ B> and resulting in an innintership (32) placed in a separate enclosure (34), filled with the island, earaet6risg in that the path of the epipal communication key (21) ensures communication between the two so-called enclosures < B>(32,</B> 34) in such a way that when a certain pressure of the oil fills Window (34) of the timer <B>(32),</B> This Imile has tended <B>A</B> to engage in the said epithelial membrane (21) which, because of its length and the epi- pilar tension, absorbs the ex#s of Pressure from the oil without allowing it to spill into the recess <B>(33)</B> of the measuring member (41) and preventing, moreover, said oil from passing into the passage (20) provided between faxe<B> (35)</B> transmitting the rotational movement of the measuring device (41)<B>A</B> the timer <B>(32)</B> and the wall of said passage (20). 4. Device according to sub-claim <B>3,</B> earmarked by the fact that the capillary path of communication (21) between the enclosure <B>(33)</B> of the measuring organ (41) and the recess (34) of the timer, is constituted by a coil (21.) producing a capillary tension of the liquid lower than that existing between the axis <B>(35)</B> of transmission of the movement of the timer measuring device and its passage opening. <B>5.</B> Apparatus according to sub-claim <B>3,</B> is earaet gray in that a port <B>ä</B> orified (40) is provided, covering the outlet <B> of the</B> capillary path, in order to avoid the aspiration of the oil contained in the coil (21) by the aetion of the turbine (41) at high measuring speeds. <B>6.</B> Device according to sub-claim <B>3,</B> earaet#risg in that the capillary path (21) reappears, in the orifice <B>of</B> passage < B>(36)</B> of the axis <B>(35),</B> the mgnag6e part in the plumb Jan sleeve <B>(30)</B> surrounds the said axis <B>(3, 5) ä</B> the part located below said sleeve and communicating freely with the enclosure <B>(33)</B> of the measuring member (41). <B>7.</B> Device according to claim, applied <B>ä</B> to a bearing comprising an oil-filled gap, earmarked as a path for epipal communication <B> (58)</B> ensures the communication of the oil-filled shaft with the outside, said liquid having in the capillary path a surface tension lower <B>A</B> than in the passage between the shaft <B >(53)</B> and the wall of the passage for this shaft, so that during an exüs of Pressure filling the eavit6 (34) of the bearing, this oil tends <B>ä</B> to engage in the a capillary communication path which, due to its length and its capillary tension, absorbs a certain excess of Oil Pressure without allowing it to spill outwards. <B>8.</B> Device according to sub-claim <B>7,</B> eara et gris6 in that the bearing is an end bearing, while the epithelial communication path is constituted by an apillary coil provided in the vicinity of the orifice through which the shaft<B>(53) passes.</B> <B>9.</B> Device according to sub-claim <B>7,</B> is colored and gray in that the bearing is an intermediate landing and has two paths of epipal communication assigned respectively <B>A</B> to each of the passage orifices of the shaft <B>(53).</B>