DE394343C - Injection air compressor for internal combustion engines - Google Patents
Injection air compressor for internal combustion enginesInfo
- Publication number
- DE394343C DE394343C DED41623D DED0041623D DE394343C DE 394343 C DE394343 C DE 394343C DE D41623 D DED41623 D DE D41623D DE D0041623 D DED0041623 D DE D0041623D DE 394343 C DE394343 C DE 394343C
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- compressor
- internal combustion
- combustion engines
- air compressor
- 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
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
-
- 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
- F02B2720/00—Engines with liquid fuel
- F02B2720/25—Supply of fuel in the cylinder
- F02B2720/251—Fuel supply by high pressure gas
- F02B2720/252—Fuel supply by high pressure gas with air pump fixed to engine cylinder; high pressure air being taken from the atmosphere or from an engine cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Description
Einblaseluftkompressor für Verbrennungskraftmaschinen. Die Erfindung bezieht sich auf Verbrennungskraftmaschinen, bei denen der Einblaseluftkompressor in unmittelbarer Nähe der Einspritzstelle angeordnet und der Druckhub des Kompressors durch das Einblaseventil gesteuert ist. Bei diesen bekannten Maschinen können Betriebsstörungen auch dann nicht eintreten, wenn das Einblaseventil aus irgendeinem Grunde undicht wird, denn die vom Kompressor erzeugte Einblaseluft tritt, wenn auch zu einem früheren Zeitpunkt, stets ohne 'Volumenverluste und mit nahezu unvermindertem Druck in den Arbeitszylinder über. Gemäß der Erfindung wird nun von dieser Feststellung zwecks Erhöhung der Betriebssicherheit der Maschine für einen ventillosen Einblaseluftkompressor Gebrauch gemacht, bei welchem das Kompressorsaugventil durch in der Zylinderwand vorgesehene Saugschlitze ersetzt ist. Durch die Anordnung von Saugschlitzen wird erreicht, daß der Kompressorzylirider kein Absperrorgan besitzt, das während des Betriebes Veranlassung zu Undichtheiten geben kann.Injection air compressor for internal combustion engines. The invention refers to internal combustion engines in which the injection air compressor arranged in the immediate vicinity of the injection point and the pressure stroke of the compressor is controlled by the injection valve. These known machines can malfunction even if the injection valve leaks for any reason because the blown air generated by the compressor occurs, albeit at an earlier stage Time, always without 'loss of volume and with almost undiminished pressure in the Working cylinder over. According to the invention, this determination is now made for the purpose of Increasing the operational safety of the machine for a valveless air injection compressor Made use of in which the compressor suction valve through in the cylinder wall provided suction slots is replaced. Due to the arrangement of suction slots achieved that the Kompressorzylirider has no shut-off device during the Operation can give rise to leaks.
Die Luftzuführung durch Schlitze ist zwar an sich bekannt, jedoch nur für Maschinen, bei welchen der Arbeitszylinder dem Kompressorzylinder vorgeschaltet ist und letzterer mit im Arbeitszylinder vorverdichteter Arbeits- oder Spülluft gespeist wird. Solche Anordnungen besitzen aber den Nachteil, daß beim Undichtwerden der Zuführungsorgane der Arbeitsluft auch der Kompressor in Mitleidenschaft gezogen wird.The air supply through slots is known per se, but only for machines in which the working cylinder is connected upstream of the compressor cylinder and the latter with working or scavenging air pre-compressed in the working cylinder is fed. However, such arrangements have the disadvantage that if there is a leak the supply organs of the working air also affected the compressor will.
Die :Ausführung des Kompressorzylinders in einem Stück mit dem Arbeitszylinder oder dem Zylinderkopf der Maschine bereitet nun insofern Schwierigkeiten. als es häufig nicht -elingt, den in das Innere eines schwer zu forinenden Gußstückes eingegossenen Zylinder in dichter und porenfreier Beschaffeilheit herzustellen. Gemäß der Erfindung wird daher der Kompressorzylinder als Stück für sich hergestellt und in (las Gußstück des Arbeitszylinderkopfes eingesetzt. Zweckmäßig ist die Herstellung eines Zylinders, der außer den Saug-.schlitzen für die Zuführung atmosphärischer Luft eine als Sitzfläche ausgebildete Dichtungsfläche besitzt, die den Arbeitszylinder abschließt, wobei gegebenenfalls auch das Einblaseventit in den eingesetzten Zylinder eingebaut werden kann.The: Execution of the compressor cylinder in one piece with the working cylinder or the cylinder head of the machine now causes difficulties in this respect. when it often does not succeed, that into the interior of a casting that is difficult to form to produce cast-in cylinders in a tight and pore-free nature. According to the invention, the compressor cylinder is therefore manufactured as a piece by itself and inserted into (the casting of the working cylinder head. Production is expedient of a cylinder, which apart from the suction slits for the supply of atmospheric Air has a sealing surface designed as a seat surface, which the working cylinder completes, where appropriate also the Einblaseventit in the inserted cylinder can be installed.
Die Zeichnung veranschaulicht den Erfin-(lungsgegenstand in einer beispielsweisen Ausführungsform.The drawing illustrates the subject matter of the invention in a exemplary embodiment.
Es bezeichnet a den Arbeitszylinder, b den 1Lompressorzylinder und c die Saugschlitze des Kompressors. Der Kompressorzylinder ist in den Zylinderkopf der Maschine eingesetzt. und die Einblaseluft wird am Ende des Kompressordruckhubes, das mit dem Verdichtungsende ries Arbeitskolbens zusämmenfällt, durch den von der Nadel d gesteuerten und in das Einhlaseventilgehäuse c mündenden Kanal f unrl sodann durch die Einspritzdüse g in den Verbrennungsraum der Maschine gepreBt. Das Einblaseventilgehäuse e ist in den Kompressorzylinder eingesetzt. Die Abdichtung des Kompressorzylinders gegen den Arbeitszylinder kann durch eine geschliffene konische Fläche bewirkt werden. Das in den Kompressorzylinder, eingelassene Einblaseventilgehäuse kann in gleicher Weise gegen beide Zylinder abgedichtet werden. Der Kompressor kann aus besonders dichtem Spezialmaterial hergestellt werden.It denotes a the working cylinder, b the compressor cylinder and c the suction slots of the compressor. The compressor cylinder is in the cylinder head used on the machine. and the injection air is at the end of the compressor pressure stroke, that coincides with the compression end of the working piston, through which the Needle d controlled and then into the Einhlaseventilgehäuse c opening channel f unrl pressed through the injection nozzle g into the combustion chamber of the engine. The injection valve housing e is inserted into the compressor cylinder. The sealing of the compressor cylinder against the working cylinder can be effected by a ground conical surface. The injection valve housing, which is embedded in the compressor cylinder, can be used in the same Way to be sealed against both cylinders. The compressor can be special dense special material.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT394343X | 1922-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE394343C true DE394343C (en) | 1924-04-26 |
Family
ID=3673406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED41623D Expired DE394343C (en) | 1922-04-04 | 1922-04-25 | Injection air compressor for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE394343C (en) |
-
1922
- 1922-04-25 DE DED41623D patent/DE394343C/en not_active Expired
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