LU86670A1 - FLOW CONTROL VALVE - Google Patents

Description

è \ * '· ________ .. ___________ _ Λ, -> Λ, BL-3968 / vdw

Λ £ K J GRAND DUCHY OF LUXEMBOURG

. Patent N ° U V Mister Minister of 18-11-1986 ............ of Economy and Medium Breakage, _,, ψ / .ΪΨ Intellectual Property Service

TOredel, Vré - ......... 1 “gp LUXEMBOURG

Patent Application I. Application

Mister ... J e an J ._. · - .. Dub oi s., Ch aus s ê J e Rame t 2 38, B 4120— {2) ...... El emalle, represen ted p ar MM. Freylingex Ernest T .... & Meyers ... Ern e s ..... ing- cons. in .propr "incL .." ........ 46 ...... rue ..... du. Cemetery ”...... bp — 11537 --------------- ..... Luxembour g ................. .................................................. .................................................. .....-.........................................- .. ..........-_________________ (3) acting ....... in-quality ....... of ....... agents -------- ---------------------------------------------------------- ------------------------------- deposit) this —th November eighteen mid 1 nine hundred and eighty-six— (4) at ............ 3 p.m., at the Ministry of the Economy and the Middle Classes, in Luxembourg: 1. this request for obtaining a patent for an invention concerning : ..... Check valve 1 ati ο n -de- d eb it—— -——----- (5) 2. the description in French language f rançai se —...... .................— of the invention in triplicate; 3. ...................... 2 ......................... ....... drawing boards, in triplicate; 4. the receipt of taxes paid to the Luxembourg Registration Office on. .J 8- l l .nl9.8.6 ______....; 5. the delegation of power, dated -----. Liè ge ---------------------- le-31-10 -19-86 .. ......

6. the successor document (authorization); declare (s) assuming responsibility for this declaration, that the inventor (s) is (are): (6)

Monsj .eur Jean J. Dubois, ..... chausjsé_e ....... de. Ramet "................................................ ........... .............

.................................. B - 4120 Flemalle .....___...... .......................................

for the above patent application the priority of one (s) application (s) of (7) .......................... ....................... /. / ........................ .................................................. filed in (8) _____________________________________________________________________________________ on (9) ..................................... .................................................. .................................................. .................................................. .................................................. ............................................- under the N ° ( 10) ........................ DD. .................................................. ........................-...................-..... .........................................——— ------ --------------------------------------- on behalf of (11) ..... .................................................. .................................................. .................................................. .................................................. ...........

elect (elect) domicile for him / her and, if designated, for his / her representative, in Luxembourg___________________ -46 ..... rue-dir ...... Cemetery ------------ ---------------------------------------------------------- ------------------------------------- (12) soIIieiteQnt) the issuance of a invention for the subject described and represented in the abovementioned appendices, with postponement of this issue to - .dix -hu i t ------------------------ ---------------------------------------------------------- -month. (13)

The g (^ aslQi! Agent ”; - ~ Î *“ a ................................... .................................................. ...... (14) MEYERS Ernest A * „„, ty ”Π. Minutes of Depot

The above-mentioned patent application has been filed with the Ministry of the Economy and the Middle Classes, Service de la Propriété -ÎLu ^ nbourg, dated: 18-11-1986 ii / 'ÇsàÊL \ ^ \ Pr. the Minister of Economy and Average Qasses, at .......... 15 ^ 00 hours (*? / J-) id

\% i ÔjLjÿ ^ / The head of the Intellectual Property Department, / /, A 68007_V2 f ^ _ / / _ "1, / \ S EXPLANATIONS RELATING TO THE DEPOSIT FORM. AY / '7 / / d M (1) s 'where applicable "Request for certificate of addition to the prindpa patent], in the main patent application No ............ of / _________.” - (2) enter the surname, first name , profession, "t KJ W \ address of the applicant, when the latter is an individual or corporate name, legal form, address of the registered office £ law5gue the applicant is a legal person- (3) enter BL-3968 / vdw

DESCRIPTIVE MEMORY

filed in support of an INVENTION PATENT application in Luxembourg for "Flow control valve"

Jean J. Dubois chaussée de Ramet 238 B - 4120 Flemalle V *.

FLOW CONTROL VALVE

The present invention relates to a valve for regulating the flow rate of fluid passing through it.

In particular in the case of regulating valves 5 mounted on devices subjected to vibrations, such as the regulating valves of the carburetors, more particularly the carburettors of internal combustion engines of the two-stroke type, the conventional regulating valves, such as the needle valves are not sufficiently reliable, in particular at high speed. Furthermore, conventional valves have a complicated assembly of multiple parts, which can only be automated with great difficulty. These valves are therefore generally expensive.

An object of the present invention is to provide a valve for regulating the flow of fluid passing through it of a new type.

Another object of the present invention is to provide a valve of the aforementioned type having a simplified assembly and comprising a reduced number of parts.

According to the present invention, the valve of the aforementioned type comprising a body provided with an inlet port and an outlet port is characterized in that it comprises an at least partially spherical element, preferably a ball, retained by means of a retaining force, substantially centered on the outlet orifice by closing it and displaceable laterally by means of a lateral control force. According to a first advantageous embodiment of the present invention, which is particularly suitable for regulating the flow rate by means of a membrane, for example in the case of gas pressure regulators or carburetor supply valves, said valve comprises, at 35 as a control member transmitting the lateral force of movement, a lever arm controlled by the position of a membrane acting against a restoring force.

According to another advantageous embodiment of ¥ 2 the present invention, which can find an application in the control of the admission of petrol and / or air into the carburetors as well as in the sanitary field for example, said valve comprises, as a control member providing the lateral force of movement of the at least partially spherical element, a magnet, preferably a permanent magnet, exerting a force of attraction on said at least partially spherical element. Advantageously, said magnet is arranged so as to be movable around the axis of the outlet orifice in a plane parallel to the plane of movement of said element and the seat thereof has a shape which is offset from the longitudinal axis of the outlet. Alternatively, the magnet is fixedly housed in the valve body and the at least partially spherical element is housed inside a conical guide controlled from the outside in a relative movement relative to said element. at least partially spherical, parallel to the longitudinal axis of the outlet.

The valve according to the present invention can find numerous applications in a good number of technical fields where it is necessary to regulate the flow of a fluid. Although the present specification only refers to carburetors and to the sanitary field, the scope of the invention should not be limited to these particular fields given solely by way of example.

An important advantage of the magnet valve according to the present invention is that the control of the at least partially spherical element takes place without contact with the fluid. This results in a number of advantages for the design of the control members which can be made of different materials, which are less expensive, since they are no longer subjected to aggressive attacks by the fluids concerned. Furthermore, applications can be envisaged in the medical, pharmaceutical and chemical fields.

Another advantage is that the number of parts to be assembled is reduced. Indeed, it is not I '3 necessary to provide seals which are also generally difficult to place.

In addition, the valve according to the present invention can be made on a reduced scale and be presented in the form of a removable and easily replaceable unit.

Other details will appear more clearly on reading the following description of particular embodiments of the invention, set out in support of the appended figures in which: FIG. 1 is a schematic view of a valve according to the present invention controlled by a membrane; - Figure 2 schematically shows a valve according to another embodiment of the invention, .5 in the closed position; - Figure 3 is a cross-sectional view of Figure 2, - Figure 4 is a view of the valve according to Figure 2 in the open position; Figure 5 is a cross-sectional view of Figure 4; - Figure 6 shows another variant of valve according to the invention, in a schematic view; and FIG. 7 represents a particular application of a valve according to the invention.

In the figures, identical reference marks relate to identical or analogous elements.

With reference to FIG. 1, the valve 1 according to the present invention comprises a valve body 3 and an outlet orifice 7. The opening thereof is controlled by a ball 9 retained centrally on said orifice. outlet 7 by a lever arm 11. The lever 12 35 is articulated at 13 and controlled at one end 15 by a membrane 17 against the effect of a spring 19. The opposite end 2 1 of said lever 12 which, in this case, has a bend in 2 3 and extends in the body 3 of the valve 4

"I

activates the lateral displacement of the ball 9. The lateral displacement of the latter partially releases the orifice 7 and allows the passage of fluid at a flow rate which depends on the opening made.

5 FIG. 2 represents a valve according to the invention comprising a body 3, an inlet orifice 5 and an outlet orifice 7. As shown in FIG. 3, the body 3 of the valve has a section of eccentric shape by with respect to the axis 7 ′ of the orifice 7 while being hand-held by a return spring 11. According to the invention, said valve comprises, as a member supplying the lateral displacement force, a magnet 21, for example a permanent magnet, which can move along a transverse plane around the axis 7 '. During its movement, said magnet 21 attracts the ball 9 along the inner wall of the body 3 which has an off-center shape and thus releases, depending on its position, the outlet orifice 7 so as to allow the passage of fluid ( Figures 4 and 5).

Relatively strong and small magnets, particularly based on rare earths, are particularly suitable.

FIG. 6 shows another variant in which the magnet 21 is fixedly housed in the body 3. There is however provided a conical guide 30 controlled 25 by a pusher 31 against the effect of a return spring -32 , guide which can perform a movement parallel to the axis 7 ′, leaving a greater or lesser clearance allowing lateral movement of the ball 9 attracted by the magnet 2 1.

30 It is obvious that the pusher can be integrated into the guide 30 and that the return spring 32 can be mounted outside the body 3, that is to say by acting on the pusher 31.

Alternatively, the guide 30 may consist of a magnetic material and be controlled by a magnet moving parallel to the longitudinal axis 7 '.

In Figure 7 there is shown an application of the valve according to the invention to the valve. The body of 9.

5 valve 3 can then be provided with threads (41, 42) or other means of connection to a pipe (43, 45). The ball 9 retained on the orifice 7 by a spring 11 is moved in the body 3 having a section similar to 5 that of FIG. 3 by means of the magnet 21 mounted in a control lever 22 which can pivot around the body 3 to Using means known per se.

It can be seen that the valve according to the present invention is in the form of a small unit that is easily removable and replaceable.

It is also possible to provide there a filter shown diagrammatically at 47 to prevent the entry of coarse dirt into the valve body. The latter can advantageously also exert the retaining force on the ball 9.

The ball is advantageously made of a magnetic material, possibly coated with a suitable synthetic material.

It is also possible to provide an application of the valve according to the invention in the field of carburetion, in particular carburetors and injection systems at low or high pressure. Such a valve can regulate the admission of air and / or petrol, by being controlled by the throttle valve of the carburetor for example. Such an injector or carburetor would be of very simple construction, since this type of valve can be integrated therein.

Applications can also be envisaged in the medical, pharmaceutical, food or chemical field, see petrochemical.

The arrangement of the valves according to the present invention using control magnets also allows easy automation of said valves. This makes it possible to envisage their use in pneumatics, aeronautics and in automated industrial processes.

It should also be noted that another advantage of the valve according to the invention resides in its operational safety, since there is a normally closed controllable valve. In the event of failure of the control or in the absence of control, the ball returns to "* 6 always in the closed position of the outlet orifice.

It is obvious that the choice of the diameter of the ball, of the diameter of the outlet orifice and of the shape of the valve body as well as of the relationships between them makes it possible to determine the variations in fluid flow in function of the movement of the ball.

10 15 2 0 2 5 30 35

Claims (12)

7 1. Valve allowing the regulation of the flow of fluid passing through it, comprising a body (3) provided with an inlet orifice (5) and an outlet orifice (7) charac-5 terized in that it comprises an at least partially spherical element (9), preferably a ball, retained by means of a retaining force (11), substantially centered on the outlet orifice (7) by closing the latter and laterally movable using a lateral force 1 q control (21). 2. Valve according to claim 1 characterized in that it comprises, as a control member transmitting the lateral force of displacement (21), a lever arm controlled by the position of a membrane (17), acting health against a restoring force (19). 3. Valve according to claim 1 characterized in that it comprises, as a control member providing the lateral force of displacement of the at least partially spherical element (9), a magnet (21), preferably a permanent magnet, exerting a force of attraction on said at least partially spherical element (9). 4. Valve according to claim 1 or 3 "characterized in that said magnet (21) is movably arranged around the axis of the outlet orifice (7) in a plane parallel to the plane of movement of said element ( 9) and the seat thereof has an off-center shape relative to the longitudinal axis (7 ') of the outlet orifice (7). 5. Valve according to claims 1, 3 and 4 characterized in that said magnet (21) is housed in a control lever (22) which is pivotally mounted around the body (3). 6. Valve according to claim 1 or 3 charac-35 risée in that said magnet (21) is housed fixedly in the valve body (3) and the at least partially spherical element (9) is housed l 'interior of a conical guide (30) controlled from the outside in a displacement 4 * ·' 8 'relative to said at least partially spherical element, (9), parallel to the longitudinal axis of the outlet orifice (7). 7. Valve according to claim 6 characterized in 5 that the conical guide (30) is controlled by a pusher (31). 8. Valve according to claim 6 characterized in that the conical guide consists of a magnetic material and in that it is controlled by an external magnet, parallel to the longitudinal axis (7 '). 9. Valve according to any one of the preceding claims, characterized in that it comprises a suitable filter on the intake orifice (5). 10. Valve according to claim 9 characterized in that said filter exerts a retaining force on the element at least partially spherical. 11. Valve according to any one of the preceding claims, characterized in that the element having at least one spherical part (9) is made of a magnetic material. 12. Valve according to any one of the preceding claims, characterized in that the element having at least one spherical part (9) consists of a magnetic core coated with a synthetic material. 2 5 30 35