DE1097209B - Covering a purge air ring space in two-stroke internal combustion engines - Google Patents

Covering a purge air ring space in two-stroke internal combustion engines

Info

Publication number
DE1097209B
DE1097209B DEP14806A DEP0014806A DE1097209B DE 1097209 B DE1097209 B DE 1097209B DE P14806 A DEP14806 A DE P14806A DE P0014806 A DEP0014806 A DE P0014806A DE 1097209 B DE1097209 B DE 1097209B
Authority
DE
Germany
Prior art keywords
cylinder
internal combustion
air ring
covering
stroke internal
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.)
Pending
Application number
DEP14806A
Other languages
German (de)
Inventor
Ferdinand Porsche
Robert Binder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DEP14806A priority Critical patent/DE1097209B/en
Publication of DE1097209B publication Critical patent/DE1097209B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Description

Abdeckung eines Spülluftringraumes bei Zweitakt-Brennkraftmaschinen Bei einer schiebergesteuerten Brennkraftmaschine ist ein die Einlaßschlitze umgebender Ringraum unter Verwendung eines Spannbandes mit unterlegtem Dichtungsstreifen abgedeckt. Der Zugang zu den Schlitzen ist jedoch insofern behindert, als das Spannband zugleich zur Befestigung des Lufteinlaßstutzens dient, der nahezu ein Viertel des Umfanges des Ringraumes abdeckt und daher - um alle Schlitze zugänglich zu machen -in zeitraubender Weise von seinen sonstigen Anschlüssen gelöst und ausgebaut werden muß.Covering a purge air ring space in two-stroke internal combustion engines In the case of a valve-controlled internal combustion engine, an annular space surrounding the inlet slots is covered using a tensioning band with a sealing strip underneath. Access to the slots is hindered, however, as the tensioning strap also serves to fasten the air inlet nozzle, which covers almost a quarter of the circumference of the annular space and therefore - to make all slots accessible - is detached from its other connections and removed in a time-consuming manner got to.

Ausgehend von dieser bekannten Art der Abdeckung bezieht sich die Erfindung auf eine Abdeckung eines in einem einzeln stehenden Zylinder einer kolbengesteuerten Zweitakt-Brennkraftmaschine angeordneten Spülluftringraumes mit über den ganzen Zylinderumfang verteilten Spülschlitzen unter Verwendung eines Spannbandes mit unterlegtem Dichtungsstreifen.Based on this known type of cover, the Invention to a cover of a piston-controlled in a single cylinder Two-stroke internal combustion engine arranged purge air space with over the whole Cylinder circumference distributed flushing slots using a tightening strap with an underlaid Sealing strips.

Aufgabe der Erfindung ist es, die rings um den Zylinder verteilt angeordneten Spülschlitze leicht zugänglich zu machen, um sie reinigen zu können. Dies wird erfindungsgemäß dadurch erreicht, daß in der den Spülluftringraum nach außen abschließenden `Tand des Zylinders Öffnungen vorgesehen sind, die in Anzahl und Größe den Spülschlitzen entsprechen und durch das rings um den Zylinder verlaufende Spannband abgedeckt sind.The object of the invention is to provide the distributed around the cylinder To make flushing slots easily accessible in order to be able to clean them. This is according to the invention achieved by the fact that in the `Tand of the cylinder openings are provided, the number and size of the flushing slots and covered by the tension band running around the cylinder are.

Daß man den Spülschlitz, um ihn leicht bearbeiten und reinigen zu können, in :gleicher Größe bis in die Zylinderaußenfläche ausmünden läßt, ist an sich bekannt.That you can use the flushing slot to make it easy to edit and clean can, in: the same size can open out into the cylinder outer surface is on known.

In den Zeichnungen, welche eine beispielsweise Ausführungsform der Erfindung veranschaulichen, ist Fig. 1 ein Mittellängsschnitt durch den Zylinder einer luftgekühlten Zweitakt-Brennkraftmaschine mit der erfindungsgemäßen Abdeckung und Fig. 2 ein Schnitt nach der Linie II-II der Fig. 1. Das Kurbelgehäuse 1 der Maschine trägt einen bundförmigen Ansatz 2, welcher eine Öffnung 3 enthält. Auf dem Ansatz 2 stützt sich ein luftgekühlter Zylinder 4 ab. Der Zylinder 4 besitzt eine ringförmige Tasche 5, welche zusammen mit der Öffnung 3 des Kurbelgehäuses 1 eine Spülluftkammer 6 bildet. Die Kammer 6 ist gegen das Kurbelgehäuse 1 durch einen zylindrischen Bund 7 des Zylinders 4, der mit einer Dichtung 8 versehen ist, abgedichtet. Für den Durchtritt der von einem Kolbenverdichter od. dgl. in die Spülluftkammer 6 und von dort in den Zylinderraum 9 geförderten Luft sind Schlitze 10 vorgesehen, die vom Kolben 11 gesteuert werden. Die Schlitze 10 durchsetzen sowohl die Zylinderwand 13 als auch die Spülluftkammerwand 12 und sind an der Spülluftkammerwand 12 unter Zwischenschaltung einer wärmebeständigen Dichtung 14 aus Asbest od. dgl. durch ein Spannband 15 bekannter Ausführung abgedeckt.In the drawings which illustrate an exemplary embodiment of the invention, FIG. 1 is a central longitudinal section through the cylinder of an air-cooled two-stroke internal combustion engine with the cover according to the invention, and FIG. 2 is a section along the line II-II in FIG the machine carries a collar-shaped extension 2 which contains an opening 3. An air-cooled cylinder 4 is supported on the extension 2. The cylinder 4 has an annular pocket 5 which, together with the opening 3 of the crankcase 1, forms a scavenging air chamber 6. The chamber 6 is sealed against the crankcase 1 by a cylindrical collar 7 of the cylinder 4, which is provided with a seal 8. For the passage of the air conveyed by a piston compressor or the like into the scavenging air chamber 6 and from there into the cylinder space 9, slots 10 are provided which are controlled by the piston 11. The slots 10 penetrate both the cylinder wall 13 and the scavenging air chamber wall 12 and are covered on the scavenging air chamber wall 12 with the interposition of a heat-resistant seal 14 made of asbestos or the like by a tensioning band 15 of known design.

Claims (1)

PATENTANSPRUCH: Abdeckung eines in einem einzeln stehenden Zylinder einer kolbengesteuerten Zweitakt-Brennkraftmaschine angeordneten Spülluftringraumes mit über den ganzen Zylinderumfang verteilten Spülschlitzen unter Verwendung eines Spannbandes mit untergelegtem Dichtungsstreifen, dadurch gekennzeichnet, daß in der den Spülluftringraum (5) nach außen abschließenden Wand (12) des Zylinders (4) Öffnungen vorgesehen sind, die in Anzahl und Größe den Spülschlitzen (10) entsprechen und durch das rings um den Zylinder (4) verlaufende Spannband (15) abgedeckt sind. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 701040, 764 417; französische Patentschriften Nr. 472 718, 477 003, 559 711, 855 570; USA.-Patentschriften Nr. 2 244 749, 2 703 663. PATENT CLAIM: Covering of a scavenging air ring chamber arranged in an individual cylinder of a piston-controlled two-stroke internal combustion engine with scavenging slots distributed over the entire circumference of the cylinder using a tightening strap with a sealing strip underneath, characterized in that in the wall (12) of the scavenging air ring chamber (5) to the outside Cylinder (4) openings are provided which correspond in number and size to the flushing slots (10) and are covered by the tensioning band (15) running around the cylinder (4). Considered publications: German Patent Specifications Nos. 701 040, 764 417; French Patent Nos. 472 718, 477 003, 559 711, 855 570; U.S. Patent Nos. 2,244,749, 2,703,663.
DEP14806A 1955-09-10 1955-09-10 Covering a purge air ring space in two-stroke internal combustion engines Pending DE1097209B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP14806A DE1097209B (en) 1955-09-10 1955-09-10 Covering a purge air ring space in two-stroke internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP14806A DE1097209B (en) 1955-09-10 1955-09-10 Covering a purge air ring space in two-stroke internal combustion engines

Publications (1)

Publication Number Publication Date
DE1097209B true DE1097209B (en) 1961-01-12

Family

ID=7365332

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP14806A Pending DE1097209B (en) 1955-09-10 1955-09-10 Covering a purge air ring space in two-stroke internal combustion engines

Country Status (1)

Country Link
DE (1) DE1097209B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR472718A (en) * 1913-08-14 1914-12-16 Jean Albert Hardy Two-stroke explosion engine
FR477003A (en) * 1914-12-14 1915-09-17 Donald Ashmore Pearson Improvements to lubrication devices for internal combustion engines
FR559711A (en) * 1922-12-12 1923-09-20 Two-stroke engine
FR855570A (en) * 1938-06-02 1940-05-15 Audi Ag Two-stroke polycylindrical internal combustion engine with light distribution
DE701040C (en) * 1936-12-17 1941-01-08 Auto Union A G Two-stroke internal combustion engine
US2244749A (en) * 1940-01-04 1941-06-10 Packard Motor Car Co Internal combustion engine
DE764417C (en) * 1936-10-27 1952-03-10 Auto Union A G High-speed two-stroke internal combustion engine
US2703663A (en) * 1950-11-24 1955-03-08 Connett Soloman Leonard Closure plate holding means

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR472718A (en) * 1913-08-14 1914-12-16 Jean Albert Hardy Two-stroke explosion engine
FR477003A (en) * 1914-12-14 1915-09-17 Donald Ashmore Pearson Improvements to lubrication devices for internal combustion engines
FR559711A (en) * 1922-12-12 1923-09-20 Two-stroke engine
DE764417C (en) * 1936-10-27 1952-03-10 Auto Union A G High-speed two-stroke internal combustion engine
DE701040C (en) * 1936-12-17 1941-01-08 Auto Union A G Two-stroke internal combustion engine
FR855570A (en) * 1938-06-02 1940-05-15 Audi Ag Two-stroke polycylindrical internal combustion engine with light distribution
US2244749A (en) * 1940-01-04 1941-06-10 Packard Motor Car Co Internal combustion engine
US2703663A (en) * 1950-11-24 1955-03-08 Connett Soloman Leonard Closure plate holding means

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