FR2573850A1 - TAP FOR GAS BURNERS AND THE LIKE - Google Patents

Abstract

THIS VALVE INCLUDES A BODY 1 PROVIDED WITH A GAS INLET ORIFICE 9 OPENING INTO A PASSING OUTPUT PORT 2 IN WHICH A ROTARY DISTRIBUTOR IS MOUNTED WITH A FRONT CHAMBER 23 OPENING INTO THE OUTLET PORT AND A LATERAL PORT 22. IT ALSO FEATURES A HOLE IN WHICH IS SCREWED A DISTRIBUTION VALVE WITH A MINIMUM FLOW ADJUSTMENT NEEDLE, THIS HOLE OPENING INTO THE BODY'S INLET ORIFICE 9 AND ENDING IN ANOTHER HOLE 6 CLOSED BY A BALL 29 AND WHICH OPENS IN TURN INTO PORT 2 OF THE TAP IN THE AREA OF SIDE PORT 22 OF THE DISTRIBUTOR TO FORM A MINIMUM FLOW ACCESS SEPARATE FROM GENERAL INLET 9 OF THE TAP.

Description

The present invention relates to a tap for gas burners of

  stoves and the like, provided with means for adjusting the maximum and minimum flow rates

  gas in a simple and efficient way.

  The valve in question is of the compression type.

  nant a body with a foot provided with means for the rac-

  gas line cord, body in which

  was made a gas inlet port which is re-

  cut perpendicularly through an outlet

  through and in which is housed a rotary distributor

  cylindrical tif having a front chamber which

  coincides with the outlet and presents a

  lateral che, tap also including elements

  corresponding control and blocking elements. In the present embodiment, the tap is essentially characterized by the fact that it has a hole

  into which a pressure needle valve is screwed

  setting the minimum flow, hole which, in the part where

  finds the end of the needle, re-ties with the ori-

  body entry fice, leading to the media part-

  from another hole, whose inlet mouth is closed

  preferably, using a ball inserted by force and which, in turn, overlaps at its end with the orifice passing from the tap in the part of

  this one where the lateral mouth of the dispenser appears

  tor, giving rise to a minimal debit access,

  separated from the general gas inlet in the tap.

  Said distributor is surrounded, at the height

  from the lateral mouth, by a seal made of elastic material

  that, fixed to the body and having a gas inlet and

  a minimum flow passage that faces the openings

  corresponding tap sizes; this seal constitutes the element which seals the tap both in

  with regard to gas leaks as a cause that co-

  identifies the different closed and unset positions

  various bits, positions obtained, respectively,

  when the lateral mouth of the dispenser is not

  hindered on none of the passages of the body or when it is aligned with the general entrance or else on the access

  minimum flow rate or both.

  The seal in elastic material, which adjusts to a part of the valve of an adequate diameter, has

  two cylindrical and diametrically op-

  placed, one closed and the other open; the protuberance

  open rance connects to the general inlet

  the gas in the tap, while the closed protrusion connects to a blind end of this orifice, which results from overlapping with the orifice

passer-by already mentioned.

  More concretely, the elastic seal has-

  inside, on the perimeter of its two ends

  moths, two semi-toric veins that twist

  compressed between the distributor and the valve body

  ent and serve to seal against any gaps that may exist. This joint presents

  also at least three longitudinal ribs,

  identically priced, which go from one end to the other and which border the gas inlet and the minimum flow passage, ensuring sealing with respect to the

  gas flow with regard to the flow rates mentioned.

  To facilitate understanding of what is described in this memo, it has been attached to

  this one of the drawings on which is represented, uni-

  as an example, a practical case of realization

  valve for gas burners.

In these drawings:

  Figure 1 is an elevation view

valve body.

  Figure 2 is a sectional view along the

plan II-II of Figure 4.

  Figure 3 is a plan view

III-III of Figure 4.

  Figure 4 is a longitudinal sectional view of the valve body without the distributor, the

elastic seal and needle.

  Figure 5 is an anterior elevation view

valve body.

  Figure 6 is a front elevation view

elastic seal.

  Figure 7 is a longitudinal sectional view

nale of said joint.

  Figure 8 is a sectional view along the

plan VIII-VIII of Figure 4.

  LIa Figure 9 is a sectional view along the

plan IX-IX of Figure 4.

  Figure 10 is a front elevation view

tale of the distributor.

  Figure 11 is a long sectional view

dinal of the distributor.

  Figure 12 is a long sectional view

  of the tap assembly with all its components

sants mounted.

  Figure 13 is a sectional view along a transverse plane XIII-XIII relative to that of the previous figure with the distributor in position

minimum flow.

  Figure 14 is a view similar to the previous view, but with the dispenser in the closed position. Figure 15 is a view similar to that

  in Figure 8, with the distribution valve mounted

  tee. Referring to these drawings, the valve body 1 has a gas inlet orifice 9 which is cut perpendicularly, very close to its

  blind end 7, through a through hole. This ori-

  passing fice presents several parts of different

  diameters, of which part 2 having the smallest diameter

  meter constitutes the gas outlet to the burner; the

  part 3 of average diameter serves to support the distribution

  tor 19 and in part 4 of larger diameter is

  housed an elastic seal 12, following which is

  tee a socket 24 on which the distributor 19 also rests and which, in turn, is blocked by the carcasa 25 fixed to the body 1 by screws. This carcasa 25 has an orifice (FIG. 12) which serves as a support for a control rod 28 with which one rotates

  the distributor 19 thanks to a notch 21 in which

  the and engage a pin 27 when you push the rod

  28 against the spring 26. By this rotation,

  holds the different positions of the distributor 19 corresponding to the closing and to the various flow rates of the burner.

  The seal 12 has two cy-

  diametrically opposite lindrics 13 and 14, one of which, 13, is blind, while the other, 14, is

  open, both perfectly adjusted to the o

  inlet port 9, but with the protrusion open 14 on the side of the gas inlet and with the protrusion closed 13 in the blind end 7, so that

  said seal 12, which is compressed between the dis-

  tributor 19 and body 1, is not driven by

the rotation of the distributor 19.

  Said seal 12 has, on the inner perimeter of its sides, semi-toric ribs 15 which are compressed and which act as O-rings to prevent gas leakage through the intices, while reducing the bearing surface on

  the distributor 19 and, thereby, the driving force

  that the latter could exercise.

  The seal 12 also has other ribs also semi-toric but longitudinal 16, which border the inlet 18 and the minimum flow passage 17 with the function of sealing between the two. For its part, the distributor 19-, which is cylindrical, has two chambers 20 and 23; in the first chamber 20, a rod 28 is housed, while the other chamber coincides with the gas outlet section 2. Chamber 23 has a lateral orifice 22 which during rotation (FIG. 14) may not be aligned either with the inlet 18 or with the minimum flow passage 17 of the seal 12, so that the gas passage will be then closed, since the ribs 16 prevent the passage of the gas which reaches the said accesses 17 and 18 through the orifice 9. Said orifice 22 can be aligned with the inlet 18 which receives all the gas flow and, from this way, there will be a maximum flow, the two ribs 16 which border said inlet 18 preventing the

  passage of the gas flow from the other access 17.

  On the other hand, when the mouth 22 of the distributor 19 aligns with the minimum flow passage 17, there is the minimum flow, the sealing being-ensured so

identical (Figure 13).

  Finally, when the orifice 22 is located between the inlet 18 and the minimum flow passage 17, a series of flows is obtained between the maximum and minimum limits already indicated, in relation to the degree of alignment on the inlet 18 or the passage

  17, getting closer to the maximum as the al-

  The entry 18 is more stringent.

  The minimum gas flow rate is obtained by passage 17 in the manner indicated below. He was

  drilled a hole 5 with parts of different diameters

  ferro decreasing inwards. This hole 5 was made in the foot of the body 1 next to the orifice

  9 with a certain inclination towards the orifice

  this gas outlet passage and outwards, so that it slightly overlaps with said orifice - 10 inlet 9, thus giving rise to access 10 of

communication between the two.

  Said hole 5 leads to another hole 6, the internal end of which intersects with the passing orifice

  of body 1, giving rise to the mini flow access

  wrong 8 located on the segment concerned by the rotation of 1.5 the orifice 22 of the distributor 19, so that there can

  have alignment, as explained above

  is lying. By its open end, this hole 6 is closed

  with a balance 29 force-fitted so as to prevent

dear gas to escape.

  -In hole 5, screw the pressure relief valve

  glage 30 provided with the O-ring 31 to prevent leaks through the interstices of the thread. This valve

  needle 30 has a frustoconical point which

  perfectly adapts to the extreme part of small dia-

  meter of hole 5 so that gas cannot

  pass by there. The needle valve 30 also has

  core, also on its tip, an axial perforation 33 which communicates with the radial orifice 22, which is always in the part of the hole 5 o represents the access 10 and whose diameter is larger than that of the corresponding part of the needle valve 30, so that the gas passes through the perforations 32 and 33 even if the perforation 32 is not

not aligned with access 10.

  According to this arrangement, when the needle valve 30 is fully screwed, the gas flow only passes through the perforations 32 and 33. But if it is not fully screwed, the gas also passes through the gap existing between needle 30 and its seat, allowing adjustment of the minimum flow rate which

  will depend on the type of gas to be used.

  The gas therefore flows from a pipe to the orifice 9 of the body 1, reaches the inlet 18 and

  access 10, arriving in quantity permitted by the punch

  sheet 30 to hole 6 and, therefore, & the minimum flow access 8 passing or not through the mouth 22 to the outlet 2 of the body 1 in desired quantity, which depends on the fact that the orifice 22 does not align with any access 17 and 18 or aligns with one or the other or both at the same time, as explained above.

Claims (3)

  1. Faucet for kitchen gas burners   res and the like of the type comprising a body (1) with   a foot provided with means of connection to a pipe-   tion of gas, body in which an ori-   gas inlet (9) which is cut perpendicularly by a passing outlet (2) and in which is mounted a cylindrical rotary distributor (19) having a front chamber (23) which coincides   with the outlet orifice and has a lateral orifice   ral (22), also comprising the   mande and corresponding blocking, characteristic tap   se by the fact that it has a hole (5) into which is screwed a needle valve (30) for adjusting the minimum flow, hole which, in the part where the end of the needle is found, overlaps with the inlet opening of the body, ending in the middle part of another hole (6), the inlet mouth of which is preferably closed by means of a ball (29) inserted by force and which, in turn, intersects at its end with the orifice passing from the tap in the part of it where there is the lateral orifice (22) of the distributor (19), giving rise to a minimal flow access , separate from the general entrance of   gas in the tap; said distributor (19) is   turned, at the level of the lateral orifice (22), by a   seal (12) made of elastic material, fixed to the body and pre-   feeling a gas inlet and a mini flow passage   evil that face the corresponding openings-from   tap, this seal (12) constituting the element which   re the tightness of the valve both with regard to gas leaks and with regard to the various closing positions and various flow rates, positions   which are obtained, respectively, when the lateral orifice   ral (22) of the distributor (19) is not aligned with any of the passages of the body or when it is aligned with the general inlet (9) or else with the access (8) with minimum flow or both at a time.   2. Tap for gas-cooking burners   res and the like according to claim 1, character-   laughed at by the fact that the seal (12), which adjusts to a part of the valve of an adequate diameter, has two   À10 cylindrical protuberances (2) -and diametrically opposite   entrances (13, 14), one (13) closed and the other open   (14), the open protrusion connecting to the orifice   this general gas inlet (9) into the tap, while the closed protrusion (13) is engaged in a blind end (7) of this orifice, which results from   overlap with the passing opening already mentioned.   3. Faucet for kitchen gas burners   res and the like, according to claims 1 and 2,   characterized by the fact that, on the one hand, the seal (12) has, inside, on the perimeter of its two ends, two semi-ribs (15) which are compressed between the distributor and the body   tap and serve to seal against   port in the interstices which could exist, and of-   On the other hand, this joint has at least three longitudinal ribs (16), compressed in an identical manner, which go from one end to the other and which border the entrance.   gas (18) and the minimum flow passage (i7),   thus sealing against the gas flow by   with regard to the speeds mentioned.