DE3332923C2 - Mixing device for preparing a fuel gas-air mixture for internal combustion engines - Google Patents
Mixing device for preparing a fuel gas-air mixture for internal combustion enginesInfo
- Publication number
- DE3332923C2 DE3332923C2 DE3332923A DE3332923A DE3332923C2 DE 3332923 C2 DE3332923 C2 DE 3332923C2 DE 3332923 A DE3332923 A DE 3332923A DE 3332923 A DE3332923 A DE 3332923A DE 3332923 C2 DE3332923 C2 DE 3332923C2
- Authority
- DE
- Germany
- Prior art keywords
- annular chamber
- gas
- engines
- internal combustion
- intake
- 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.)
- Expired
Links
Classifications
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/04—Gas-air mixing apparatus
- F02M21/042—Mixer comprising a plurality of bores or flow passages
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
-
- 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
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/029—Arrangement on engines or vehicle bodies; Conversion to gaseous fuel supply systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Diese Erfindung beschreibt ein Verfahren und eine Vorrichtung, die besonders dazu geeignet ist, Verbrennungsmotoren mit Flüssiggas (Propan/Butan) zu betreiben. Sie besteht aus einer ringförmigen Kammer um den Ansaugkanal, wobei die Form des Querschnittes für den Ansaugkanal keine Rolle spielt. Das wesentliche Merkmal dieser Erfindung besteht darin, daß das verdampfte Flüssiggas parallel zum Luftstrom der Verbrennungsluft geführt wird. Dies wird dadurch erreicht, daß die ringförmige Kammer Austrittsöffnungen hat, die das Gas in der gewünschten Richtung lenken. Der Vorteil dieser Erfindung besteht darin, daß nicht nur Vergasermotoren, sondern besonders auch Einspritzmotoren nach dem neuen Verfahren einwandfrei arbeiten. Es wurde festgestellt, daß beim Einbau dieser Vorrichtung in Motoren - die entweder nach dem Vergaserprinzip oder nach dem Einspritzprinzip arbeiten - keinerlei Umbau oder Änderung in der Einstellung des Motors erforderlich machen. Messungen haben ergeben, daß die volle Leistung des Motors ohne Mehrverbrauch an Kraftstoff erhalten bleibt. Dies wird durch Abgasmessungen belegt, die beweisen, daß eine besonders vollständige Verbrennung des zugeführten gasförmigen Kraftstoffes erfolgt. Besonders wertvoll ist diese Erfindung dadurch, daß schädliche Abgase auf ein Minimum reduziert werden. Darüber hinaus braucht dieser Kraftstoff keinen Zusatz von Bleitetraäthyl, was diese besonders giftige Umweltverschmutzung vollständig vermeidet.This invention describes a method and a device which is particularly suitable for operating internal combustion engines with liquid gas (propane / butane). It consists of an annular chamber around the intake channel, whereby the shape of the cross-section does not play a role for the intake channel. The essential feature of this invention is that the vaporized liquid gas is guided parallel to the air flow of the combustion air. This is achieved in that the annular chamber has outlet openings which direct the gas in the desired direction. The advantage of this invention is that not only carburetor engines, but also injection engines in particular, work properly according to the new method. It has been found that when this device is installed in engines - which operate either according to the carburetor principle or according to the injection principle - no modifications or changes in the setting of the engine are necessary. Measurements have shown that the engine can maintain its full performance without consuming more fuel. This is proven by exhaust gas measurements, which prove that particularly complete combustion of the supplied gaseous fuel takes place. This invention is particularly valuable in that harmful exhaust gases are reduced to a minimum. In addition, this fuel does not require the addition of tetraethyl lead, which completely avoids this particularly toxic environmental pollution.
Description
1515th
Die Erfindüüg betrifft einen Gasmischeinsatz im Ansaugrohr einer Brennkraftmaschine zur Aufbereitung eines Brenngas-Luft-Gemisches stromauf der Hauptdrossel mit einer im Ansaugkanal konzentrisch angeordneten, ringförmigen Kammer.The invention relates to a gas mixing insert in the intake pipe an internal combustion engine for processing a fuel gas-air mixture upstream of the main throttle with an annular chamber arranged concentrically in the intake duct.
Derartige Einrichtungen sind in zahlreichen Ausführungen bekannt Sie sind aber meist kompliziert und aufwendig; außerdem muß man gegenüber Brennkraftmaschinen die mit flüssigen Brennstoffen betrieben werden, im Betrieb mit Brenngas eine Minderleistung von 10 bis 15% in Kauf nehmen.Such facilities are known in numerous designs, but they are usually complicated and elaborate; In addition, you have to operate with liquid fuels compared to internal combustion engines accept a reduction in performance of 10 to 15% when operating with fuel gas.
Aus der DE-OS 26 27 723 ist eine Vorrichtung bekannt bei der u.a. übt-r eine ringförmige Kammer Brenngas über eine Anzawl von Bohrungen quer zum Ansaugluftstrom im engsten Quei.chnitt eines Venturirohres in den Ansaugkanal gesaugt wird.From DE-OS 26 27 723 a device is known in the case of, inter alia, an annular chamber Fuel gas through a number of bores across the intake air flow in the narrowest cross-section of a Venturi tube is sucked into the intake duct.
Dieser bekannte Gasmischeinsatz geht davon aus, daß das Brenngas quer in eine beschleunigte Luftströmung gesaugt wird, um sich dann mit der Ansaugluft zu vermischen. Hierbei wird nicht immer ein homogenes Brennstoffluftgemisch erzeugt, wie es im Hinblick auf ein schadstoffarmes Abgas wünschenswert wäre.This known gas mixing insert is based on the fact that the fuel gas transversely into an accelerated air flow is sucked in to then mix with the intake air. This is not always a homogeneous one Generated fuel-air mixture, as it would be desirable in terms of a low-pollutant exhaust gas.
Aufgabe der Erfindung ist es eine Vorrichtung zu schaffen, die bei einfacher konstruktiver Ausgestaltung eine homogene Gemischzusammensetzung aus Brenngas und Luft ermöglicht und darüber hinaus zur alternativen Gemischbildung einer an sich mit flüssigen Brennstoff betriebenen Brennkraftmaschine einsetzbar ist.The object of the invention is to create a device which, with a simple structural design enables a homogeneous mixture of fuel gas and air and, moreover, to the alternative Mixture formation of an internal combustion engine operated with liquid fuel can be used.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst.According to the invention, this object is achieved by the characterizing features of claim 1 solved.
Durch die besonders einfache Anordnung des Gasmischeinsatzes im Ansaugkanal der Brennkraftmaschine und die koaxiale Gaszuführung um den Hauptluftstrom herum, kann dieser Gasmischer ohne großen Aufwand bei der Umstellung von Motoren von flüssigem Brennstoff auf Gasbetrieb in den Ansaugkanal stromauf der Hauptdrossel eingesetzt werden. Außerdem haben Versuche an einem PKW-Motor gezeigt, daß im Leerlauf die Schadstoffemission auf bis zu V4 der normalen Werte einer mit flüssigem Brennstoff betriebenen Brennkraftmaschine zurückgehen, was auch auf einen hohen Ausbrenngrad des Brenngases schließen läßt.Due to the particularly simple arrangement of the gas mixer insert in the intake duct of the internal combustion engine and the coaxial gas supply around the main air flow, this gas mixer can be used in the intake duct upstream of the main throttle with little effort when converting engines from liquid fuel to gas operation. In addition, tests on a car engine have shown that when the engine is idling, the pollutant emissions are reduced to V 4 of the normal values of an internal combustion engine operated with liquid fuel, which also suggests a high degree of burnout of the fuel gas.
Im folgenden wird der Gegenstand des erfindungsgemäßen Gasmischeinsatzes kurz an Hand der Figur beschrieben. The subject of the gas mixing insert according to the invention is briefly described below with reference to the figure.
Die Figur zeigt zunächst einen Axialschnitt durch den Gasmischeinsatz. Ein zylindrisches Doppelrohrstück Hierzu 1 Blatt ZeichnungenThe figure initially shows an axial section through the gas mixing insert. A cylindrical piece of double pipe 1 sheet of drawings
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3332923A DE3332923C2 (en) | 1983-09-13 | 1983-09-13 | Mixing device for preparing a fuel gas-air mixture for internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3332923A DE3332923C2 (en) | 1983-09-13 | 1983-09-13 | Mixing device for preparing a fuel gas-air mixture for internal combustion engines |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3332923A1 DE3332923A1 (en) | 1985-03-28 |
DE3332923C2 true DE3332923C2 (en) | 1985-10-31 |
Family
ID=6208891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3332923A Expired DE3332923C2 (en) | 1983-09-13 | 1983-09-13 | Mixing device for preparing a fuel gas-air mixture for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3332923C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635248A1 (en) * | 1996-08-30 | 1998-03-05 | Ficht Gmbh & Co Kg | LPG engine |
CN102493899A (en) * | 2011-12-05 | 2012-06-13 | 北京理工大学 | Flow guide sleeve type spiral mixed gas inlet device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL181516C (en) * | 1976-05-26 | 1987-09-01 | Tno | Apparatus for supplying gaseous fuels, such as LPG or natural gas, to a combustion engine. |
-
1983
- 1983-09-13 DE DE3332923A patent/DE3332923C2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635248A1 (en) * | 1996-08-30 | 1998-03-05 | Ficht Gmbh & Co Kg | LPG engine |
WO1998009060A1 (en) | 1996-08-30 | 1998-03-05 | Ficht Gmbh & Co. Kg | Liquid gas engine |
DE19635248C2 (en) * | 1996-08-30 | 2001-05-23 | Ficht Gmbh & Co Kg | LPG engine |
CN102493899A (en) * | 2011-12-05 | 2012-06-13 | 北京理工大学 | Flow guide sleeve type spiral mixed gas inlet device |
Also Published As
Publication number | Publication date |
---|---|
DE3332923A1 (en) | 1985-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |