FR2616873A1 - Device for the flow of a fluid in a duct which can be closed off by a flap or butterfly - Google Patents
Device for the flow of a fluid in a duct which can be closed off by a flap or butterfly Download PDFInfo
- Publication number
- FR2616873A1 FR2616873A1 FR8708394A FR8708394A FR2616873A1 FR 2616873 A1 FR2616873 A1 FR 2616873A1 FR 8708394 A FR8708394 A FR 8708394A FR 8708394 A FR8708394 A FR 8708394A FR 2616873 A1 FR2616873 A1 FR 2616873A1
- Authority
- FR
- France
- Prior art keywords
- flap
- butterfly
- duct
- channel
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M3/00—Idling devices for carburettors
- F02M3/08—Other details of idling devices
- F02M3/14—Location of idling system outlet relative to throttle valve
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
Abstract
Description
La présente invention se rapporte d'une manière générale à un dispositif d'écoulement d'un fluide dans un conduit obturable par un volet, papillon ou analogue. The present invention relates generally to a device for flowing a fluid in a duct which can be closed off by a flap, butterfly or the like.
On sait que pour régler le débit d'air de ralenti d'un moteur à combustion interne, il est nécessaire de prévoir dans le conduit d'écoulement d'air contenant le papillon, un passage pour l'air suivant un débit réglable, et cela lorsque ledit papillon est fermé. It is known that in order to adjust the idle air flow rate of an internal combustion engine, it is necessary to provide in the air flow duct containing the butterfly valve, a passage for the air at an adjustable flow rate, and this when said butterfly is closed.
A cet effet, on prévoit généralement sur le conduit contenant le papillon un circuit d'air dérivé et contournant ce papillon, c'est-à-dire un circuit qui débouche dans le conduit en amont et en aval du papillon et qui comporte généralement une vis pointeau susceptible de régler le débit d'air. For this purpose, there is generally provided on the conduit containing the butterfly a bypass air circuit and bypassing this butterfly, that is to say a circuit which opens into the conduit upstream and downstream of the butterfly and which generally comprises a needle screw capable of regulating the air flow.
Un tel circuit extérieur ou dérivé présente des inconvénients en ce qu'il complique la structure et la fabricationm du conduit d'écoulement d'air, en ce qu'il est encombrant, et en ce qu'il est évidemment coûteux. Such an external or derived circuit has drawbacks in that it complicates the structure and manufacture of the air flow duct, in that it is bulky, and in that it is obviously expensive.
Aussi, la présente invention a pour but de remédier à ces inconvénients en proposant un dispositif d'écoulement d'air en position fermée du papillon, qui est en quelque sorte intégré au conduit contenant ce papillon, à l'intérieur dudit conduit. Also, the present invention aims to remedy these drawbacks by proposing an air flow device in the closed position of the butterfly, which is in a way integrated into the duct containing this butterfly, inside said duct.
A cet effet, et d'une manière générale, l'invention a pour objet un dispositif d'écoulement d'un fluide, tel que par exemple un gaz, dans un conduit obturable par un volet, papillon ou analogue comportant un axe monté à rotation sur la paroi dudit conduit, et du type comprenant un canal débouchant dans le conduit de part et d'autre du volet notamment lorsque ce volet est en position d'obturation, ledit canal étant traversé par un moyen, tel qu'une vis, permettant le réglage du débit de fluide dans ce canal, caractérisé en ce que ledit canal est aménagé au travers du volet, et le moyen formant vis est engagé dans un trou taraudé pratiqué au niveau de l'axe de ce volet. To this end, and in general, the invention relates to a device for the flow of a fluid, such as for example a gas, in a duct closable by a shutter, butterfly or the like comprising an axis mounted at rotation on the wall of said duct, and of the type comprising a channel opening into the duct on either side of the flap, in particular when this flap is in the closed position, said channel being traversed by means, such as a screw, allowing the adjustment of the fluid flow in this channel, characterized in that said channel is arranged through the flap, and the screw means is engaged in a tapped hole made at the axis of this flap.
On comprend donc qu'on tire avantage de la matière constituant le papillon des gaz pour y aménager un canal et un système de réglage du débit d'air passant dans ce canal, ce qui évite de conférer au conduit contenant le papillon une structure compliquée, et de constituer un encombrement supplémentaire lequel, comme on le comprend, doit être toujours évité dans le cas de l'implantation d'un moteur. It is therefore understandable that advantage is taken of the material constituting the throttle valve to arrange a channel and a system for adjusting the air flow rate passing through this channel, which avoids conferring on the duct containing the butterfly a complicated structure, and to constitute an additional bulk which, as it is understood, must always be avoided in the case of the installation of an engine.
Suivant une autre caractéristique de l'invention, le trou taraudé portant le moyen formant vis est coaxial à l'axe du volet ou papillon, et débouche à l'extrémité libre de cet axe. According to another characteristic of the invention, the tapped hole carrying the screw-forming means is coaxial with the axis of the flap or butterfly, and opens at the free end of this axis.
Suivant encore une autre caractéristique, le volet et son axe sont réalisés en une seule pièce moulée, l'axe étant constitué de deux portées cylindriques opposées et le canal précité étant situé près de l'une de ces portées qui reçoit le moyen formant vis. According to yet another characteristic, the shutter and its axis are produced in a single molded part, the axis being made up of two opposite cylindrical bearing surfaces and the aforementioned channel being located near one of these bearing surfaces which receives the screw-forming means.
Mais d'autres caractéristiques et avantages de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels
- la figure 1 est une vue en perspective d'une portion de conduit portant un volet ou papillon conforme à l'invention
- la figure 2 est un vue en coupe suivant sensiblement la ligne II-II de la figure 1, et
- la figure 3 est une vue en coupe suivant la ligne III-III de la figure 2.However, other characteristics and advantages of the invention will appear more clearly in the detailed description which follows and refers to the appended drawings, given solely by way of example, and in which
- Figure 1 is a perspective view of a portion of conduit carrying a flap or butterfly according to the invention
FIG. 2 is a sectional view along substantially the line II-II of FIG. 1, and
- Figure 3 is a sectional view along line III-III of Figure 2.
Comme on le voit sur les dessins, un dispositif conforme à cette invention comprnd un passage constitué par un canal 1 aménagé directement au travers d'un volet ou papillon 2 monté à rotation sur la paroi d'un conduit 3 permettant l'écoulement suivant par exemple le sens de la flèche F, d'un fluide tel que l'air ou un mélange gazeux pour l'alimentation d'un moteur à combustion interne. As can be seen in the drawings, a device according to this invention comprises a passage constituted by a channel 1 arranged directly through a shutter or butterfly 2 rotatably mounted on the wall of a conduit 3 allowing the following flow by example the direction of arrow F, of a fluid such as air or a gaseous mixture for the supply of an internal combustion engine.
Une vis-pointeau 4 est engagée dans un trou 5 pratiqué au niveau de l'axe 6 solidaire du volet 2 et permettant de monter celui-ci à rotation dans le.conduit 3. A needle screw 4 is engaged in a hole 5 made at the axis 6 secured to the shutter 2 and making it possible to mount the latter in rotation in the duct 3.
Suivant un mode de réalisation préféré, l'axe 6 est constitué par deux portées cylindriques oposées 7 dont l'une comporte le trou taraudé 5, comme on le voit bien sur la figure 2, ce trou étant coaxial à l'axe 6 et débouchant à l'extrémité libre de cet axe, c'est-à-dire de l'une des portées cylindriques 7, comme on l'a montré en 8 sur les figures 1 et 2. According to a preferred embodiment, the axis 6 is constituted by two opposed cylindrical bearings 7, one of which includes the tapped hole 5, as can be seen in FIG. 2, this hole being coaxial with the axis 6 and opening out at the free end of this axis, that is to say of one of the cylindrical bearings 7, as shown at 8 in FIGS. 1 and 2.
Selon l'exemple représenté, le canal 1 est situé au voisinage de l'une des portées cylindriques 7, de manière que ledit canal puisse être plus ou moins obturé par action sur la vis-pointeau 4 afin de régler le débit de l'air passant dans le canal 1, lorsque le volet ou papillon 2 se trouve en position d'obturation. According to the example shown, the channel 1 is located in the vicinity of one of the cylindrical surfaces 7, so that said channel can be more or less closed by action on the needle screw 4 in order to adjust the air flow. passing through channel 1, when the flap or butterfly 2 is in the closed position.
Dans le cas de l'alimentation d'un moteur à combustion interne, le canal 1 constitue, avec la vis 4, un gicleur réglable de ralenti. In the case of supplying an internal combustion engine, the channel 1 constitutes, with the screw 4, an adjustable idle jet.
Le volet 2 et l'axe 6 sont réalisés en une seule pièce moulée maintenue dans le conduit 3 au droit d'un plan transversal P de jonction entre deux tronçons de ce conduit. The shutter 2 and the axis 6 are produced in a single molded part held in the duct 3 in line with a transverse plane P of junction between two sections of this duct.
La rotation du papillon 2 peut être commandée comme connu en soi, par un organe approprié représenté partiellement en 9 sur la figure 2. The rotation of the butterfly 2 can be controlled as known per se, by an appropriate member shown partially at 9 in FIG. 2.
On a donc réalisé suivant l'invention une solution particulièrement économique et avantageuse sur le plan de l'encombrement, pour permettre l'écoulement d'un fluide dans un conduit comportant un papillon, et cela lorsque ledit papillon se trouve en position d'obturation. A particularly economical and advantageous solution has therefore been produced according to the invention, in terms of overall dimensions, to allow the flow of a fluid in a duct comprising a butterfly, and this when said butterfly is in the closed position. .
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.
Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit. On the contrary, the invention includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8708394A FR2616873B1 (en) | 1987-06-16 | 1987-06-16 | DEVICE FOR FLOWING A FLUID INTO A CONDUIT CLOSABLE BY A SHUTTER OR BUTTERFLY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8708394A FR2616873B1 (en) | 1987-06-16 | 1987-06-16 | DEVICE FOR FLOWING A FLUID INTO A CONDUIT CLOSABLE BY A SHUTTER OR BUTTERFLY |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2616873A1 true FR2616873A1 (en) | 1988-12-23 |
FR2616873B1 FR2616873B1 (en) | 1989-11-17 |
Family
ID=9352113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8708394A Expired FR2616873B1 (en) | 1987-06-16 | 1987-06-16 | DEVICE FOR FLOWING A FLUID INTO A CONDUIT CLOSABLE BY A SHUTTER OR BUTTERFLY |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2616873B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0494344A1 (en) * | 1991-01-09 | 1992-07-15 | Firma Carl Freudenberg | Sealing device for a throttle valve construction with a solid shaft |
EP0705967A1 (en) * | 1994-10-05 | 1996-04-10 | Karlheinz Hahn | Throttle valve |
WO1996035866A2 (en) * | 1995-05-09 | 1996-11-14 | Filterwerk Mann & Hummel Gmbh | Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same |
GB2430993A (en) * | 2005-10-10 | 2007-04-11 | Gt Group Ltd | Butterfly valve with bypass system |
EP2440765A1 (en) * | 2009-06-12 | 2012-04-18 | Jacobs Vehicle Systems, Inc. | Exhaust brake |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR510747A (en) * | 1920-02-26 | 1920-12-09 | Jose Pifarre | Carburetor with advanced device ensuring engine running at slow speeds |
FR515880A (en) * | 1917-03-09 | 1921-04-08 | Dore Pordes | Carburetor for combustion engines |
GB222610A (en) * | 1923-07-30 | 1924-10-09 | Edward Dodson | Improvements in carburettors for internal combustion engines |
GB434292A (en) * | 1934-05-26 | 1935-08-29 | Marvel Carbureter Co | Improvements in or relating to carbureters |
-
1987
- 1987-06-16 FR FR8708394A patent/FR2616873B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR515880A (en) * | 1917-03-09 | 1921-04-08 | Dore Pordes | Carburetor for combustion engines |
FR510747A (en) * | 1920-02-26 | 1920-12-09 | Jose Pifarre | Carburetor with advanced device ensuring engine running at slow speeds |
GB222610A (en) * | 1923-07-30 | 1924-10-09 | Edward Dodson | Improvements in carburettors for internal combustion engines |
GB434292A (en) * | 1934-05-26 | 1935-08-29 | Marvel Carbureter Co | Improvements in or relating to carbureters |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0494344A1 (en) * | 1991-01-09 | 1992-07-15 | Firma Carl Freudenberg | Sealing device for a throttle valve construction with a solid shaft |
EP0705967A1 (en) * | 1994-10-05 | 1996-04-10 | Karlheinz Hahn | Throttle valve |
WO1996035866A2 (en) * | 1995-05-09 | 1996-11-14 | Filterwerk Mann & Hummel Gmbh | Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same |
WO1996035866A3 (en) * | 1995-05-09 | 1997-01-23 | Mann & Hummel Filter | Throttle valve for regulating the amount of intake air in an internal combustion engine and process for producing the same |
GB2430993A (en) * | 2005-10-10 | 2007-04-11 | Gt Group Ltd | Butterfly valve with bypass system |
EP2440765A1 (en) * | 2009-06-12 | 2012-04-18 | Jacobs Vehicle Systems, Inc. | Exhaust brake |
CN102803683A (en) * | 2009-06-12 | 2012-11-28 | 雅各布斯车辆系统公司 | Exhaust brake |
EP2440765A4 (en) * | 2009-06-12 | 2013-11-06 | Jacobs Vehicle Systems Inc | Exhaust brake |
Also Published As
Publication number | Publication date |
---|---|
FR2616873B1 (en) | 1989-11-17 |
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