JPH0519547U - Bench lily mixer - Google Patents
Bench lily mixerInfo
- Publication number
- JPH0519547U JPH0519547U JP6908291U JP6908291U JPH0519547U JP H0519547 U JPH0519547 U JP H0519547U JP 6908291 U JP6908291 U JP 6908291U JP 6908291 U JP6908291 U JP 6908291U JP H0519547 U JPH0519547 U JP H0519547U
- Authority
- JP
- Japan
- Prior art keywords
- venturi
- air
- mixer
- flow rate
- fuel mixture
- 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
Abstract
(57)【要約】
【目的】 混合気流量が変化しても、空気比の変化を少
なくする。
【構成】 ガス入口部をベンチュリ中心軸に平行な複数
のスリットで構成する。
(57) [Summary] [Purpose] Even if the air-fuel mixture flow rate changes, the change in the air ratio is reduced. [Structure] The gas inlet is composed of a plurality of slits parallel to the central axis of the venturi.
Description
【０００１】[0001]
本考案は、ガスエンジン用のベンチュリミキサに関する。 The present invention relates to a venturi mixer for a gas engine.
【０００２】[0002]
従来のかかるベンチュリミキサにおいては、図４及び図５に示すように、空気 流Ａ内にガスＧを混合させるガス入口部は、例えばベンチュリ１０の中心軸Ｃに 直角な一対のスリット１１、１１で構成されていた。 In such a conventional venturi mixer, as shown in FIGS. 4 and 5, the gas inlet portion for mixing the gas G into the air flow A is, for example, a pair of slits 11 and 11 perpendicular to the central axis C of the venturi 10. Was configured.
【０００３】[0003]
従来のガス入口部がスリット１１、１１である構造では図３に示すように、混 合気流量が変化すると、空気比が特性ｂのように変化し、ベンチュリミキサだけ では不完全燃焼等の不具合が生じる。そのため、別の流量調整装置を必要として いた。 In the conventional structure in which the gas inlets are the slits 11 and 11, as shown in FIG. 3, when the air-fuel mixture flow rate changes, the air ratio changes like the characteristic b, and incomplete combustion etc. occurs with the venturi mixer alone. Occurs. Therefore, another flow control device was needed.
【０００４】 本考案は、混合気流量の変化による空気比の変化を少なくするベンチュリミキ サを提供することを目的としている。An object of the present invention is to provide a venturi mixer that reduces changes in air ratio due to changes in air-fuel mixture flow rate.
【０００５】[0005]
本考案によれば、空気流れ内にガスを混入させるガス入口部をベンチュリ中心 軸に平行な複数のスリットで構成している。 According to the present invention, the gas inlet for mixing the gas into the air flow is composed of a plurality of slits parallel to the central axis of the venturi.
【０００６】 上記ガス入口部は、ベンチュリののど部の直ぐ後流側に、ベンチュリの中心軸 に対し十字状に配置するのが好ましい。The gas inlet is preferably arranged in a cross shape with respect to the central axis of the venturi, just behind the throat of the venturi.
【０００７】[0007]
上記のように構成されたベンチュリミキサによれば、混合気流量が変化しても 、空気比の変化を小さく抑えることが出来る。その結果、別の流量調整装置を設 ける必要が無く、構造が簡単となり、製造コストが低く抑えられるのである。 According to the venturi mixer configured as described above, even if the flow rate of the air-fuel mixture changes, the change in the air ratio can be suppressed to be small. As a result, there is no need to install a separate flow rate adjusting device, the structure is simple, and the manufacturing cost is kept low.
【０００８】[0008]
以下図面を参照して本考案の実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
【０００９】 図１及び図２において、ベンチュリ１ののど部２の直ぐ後流側には、ベンチュ リ１の中心軸Ｃと平行な複数（図示の例では４個）のスリット３〜３が十字状に 配設されている。そして、これらのスリット３〜３は、図示しないガス供給管に 接続されている。1 and 2, a plurality of slits 3 to 3 (four in the illustrated example) parallel to the central axis C of the venturi 1 are formed on the throat portion 2 of the venturi 1 immediately downstream of the throat 2. Are arranged in a shape. The slits 3 to 3 are connected to a gas supply pipe (not shown).
【００１０】 上記ベンチュリ１の外径Ｄは、例えば４７ｍｍ、長さＬは、例えば５４ｍ、の ど部２の前端からの距離Ｌ１、例えば１８ｍｍ、のど部２の内径Ｄ１は、例えば ２４ｍｍであるのに対し、スリット３の長さＳは、例えば、１１ｍｍ、巾ｗは、 例えば４ｍｍに形成されている。The venturi 1 has an outer diameter D of, for example, 47 mm, a length L of, for example, 54 m, a distance L1 from the front end of the throat portion 2, for example, 18 mm, and an inner diameter D1 of the throat portion 2, for example, 24 mm. On the other hand, the length S of the slit 3 is, for example, 11 mm, and the width w is, for example, 4 mm.
【００１１】 上記の様に構成された図示の実施例では、図３に示すように混合気流量が変化 しても、空気比の変化は、特性ａのように小さく抑えられる。図示の実験結果で は、混合気流量の同一の変化に対し、空気比の変化は、従来に比べて１／４程度 に抑えられているのが判る。In the illustrated embodiment configured as described above, even if the flow rate of the air-fuel mixture changes as shown in FIG. 3, the change in the air ratio is suppressed to a small value as indicated by the characteristic a. From the experimental results shown in the figure, it can be seen that, for the same change in the air-fuel mixture flow rate, the change in the air ratio is suppressed to about 1/4 of the conventional value.
【００１２】[0012]
本考案は、以上説明したように構成されているので、混合気流量が変化しても 、空気比の変化を小さく抑えて別の流量調整装置を不要とし、構造を簡単にして 安価に提供することができる。 Since the present invention is configured as described above, even if the flow rate of the air-fuel mixture changes, the change of the air ratio is suppressed to be small, and another flow rate adjusting device is not required, and the structure is simplified and provided at a low cost. be able to.
【図１】本考案の一実施例を示すベンチュリの側断面
図。FIG. 1 is a side sectional view of a venturi showing an embodiment of the present invention.
【図２】図１のＸ−Ｘ線矢視断面図。FIG. 2 is a sectional view taken along line XX of FIG.
【図３】効果を従来と対比して示す混合気流量〜空気比
特性図。FIG. 3 is a characteristic diagram of an air-fuel mixture flow rate-air ratio showing effects in comparison with a conventional one.
【図４】従来ミキサのベンチュリを示す側断面図。FIG. 4 is a side sectional view showing a venturi of a conventional mixer.
【図５】図４のＸ−Ｘ線矢視断面図。5 is a sectional view taken along line XX of FIG.
Ａ・・・空気流 Ｃ・・・ベンチュリ中心軸 Ｇ・・・ガス １、１０・・・ベンチュリ ２・・・のど部 ３、１１・・・スリット ４・・・拡径部 A ... Air flow C ... Venturi central axis G ... Gas 1, 10 ... Venturi 2 ... Throat part 3, 11 ... Slit 4 ... Expanded part
Claims (1)
部をベンチュリ中心軸に平行な複数のスリットで構成し
たことを特徴とするベンチュリミキサ。1. A venturi mixer characterized in that a gas inlet for mixing gas into an air flow is constituted by a plurality of slits parallel to a central axis of the venturi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991069082U JP2550913Y2 (en) | 1991-08-29 | 1991-08-29 | Venturi mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991069082U JP2550913Y2 (en) | 1991-08-29 | 1991-08-29 | Venturi mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0519547U true JPH0519547U (en) | 1993-03-12 |
| JP2550913Y2 JP2550913Y2 (en) | 1997-10-15 |
Family
ID=13392313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991069082U Expired - Lifetime JP2550913Y2 (en) | 1991-08-29 | 1991-08-29 | Venturi mixer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2550913Y2 (en) |
-
1991
- 1991-08-29 JP JP1991069082U patent/JP2550913Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2550913Y2 (en) | 1997-10-15 |
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