DE4115537A1 - Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression - Google Patents

Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression

Info

Publication number
DE4115537A1
DE4115537A1 DE19914115537 DE4115537A DE4115537A1 DE 4115537 A1 DE4115537 A1 DE 4115537A1 DE 19914115537 DE19914115537 DE 19914115537 DE 4115537 A DE4115537 A DE 4115537A DE 4115537 A1 DE4115537 A1 DE 4115537A1
Authority
DE
Germany
Prior art keywords
combustion chamber
piston
pistons
larger piston
compression
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.)
Ceased
Application number
DE19914115537
Other languages
German (de)
Inventor
Gustav Dr Wuerth
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19914115537 priority Critical patent/DE4115537A1/en
Publication of DE4115537A1 publication Critical patent/DE4115537A1/en
Ceased 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/22—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/26—Multi-cylinder engines other than those provided for in, or of interest apart from, groups F02B25/02 - F02B25/24
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
    • F02B33/14—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder working and pumping pistons forming stepped piston
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Each cylinder has two pistons, of different sizes and located behind each other. The smaller piston operates the combustion chamber, the larger piston operates the compression chamber. The pistons are fastened to each other. The larger piston has the bearing for the gudgeon pin. Two cylinders with pistons offset by 180 degs. work together. The larger piston takes-in fresh air, compresses it, and passes it via a conduit into the combustion chamber of the twin cylinder. The high compression takes place in the combustion chamber. There is fuel injection, and combustion is acc. to the Otto- or Diesel principle. ADVANTAGE - Low construction; increased air intake; high compression; longer service life.

Description

Der Motor arbeitet nach dem üblichen Zweitaktprinzip, mit dem Unterschied, daß der Kolben als Doppelkolben in der Weise aus­ gebildet ist, daß der obere, kleinere Kolben den Verbrennungs­ raum bedient, während zur Luftkompression der untere, größere Kolben dient. Beide Kolben sind fest miteinander verbunden. In dem größeren Kolben ist die Kolbenstange gelagert. Dabei erfolgt die Verdichtung der Luft beim Aufwärtslaufen des größeren Kolbens. Das hat zur Folge, daß dieser Zweitaktmotor immer paarweise mit 2 Zylindern arbeitet, da die komprimierte Luft des einen Zylin­ ders über eine kurze Verbindung jeweils in den Verbrennungsraum des anderen Zylinders geführt wird. Dort wird dann die Luft nach Einspritzung gezündet. Verdichtet wird die Luft jeweils beim Hoch­ fahren des größeren Zylinderkolbens.The engine works on the usual two-stroke principle, with which Difference that the piston out as a double piston in the way is formed that the upper, smaller piston combustion room served, while for air compression the lower, larger Piston is used. Both pistons are firmly connected. In the larger piston is supported by the piston rod. This is done the compression of the air when the larger piston runs upwards. As a result, this two-stroke engine always comes in pairs 2 cylinders works because the compressed air of one cylinder via a short connection to the combustion chamber of the other cylinder. There is then the air Injection ignited. The air is compressed at high drive the larger cylinder piston.

Das hat viele Vorteile. Es kann beliebig mehr Luft, als der Raum­ inhalt des Verbrennungsraumes ausmacht, angesaugt und in den Brenn­ raum eingeführt werden. Zudem kann dadurch eine gewünschte Ver­ dichtung gewählt werden. Ein Kippmoment des kleineren Kolbens entfällt. Dadurch wird die Lauffläche geschont und die Lebens­ dauer erhöht und eine hohe Kompression ermöglicht. Der größere Kolben kann das Kippmoment leichter verkraften, zumal er mit geringen Kompressionsdrücken arbeitet. Die Schmierung kann wie beim Viertakter über eine Ölpumpe erfolgen. Die Bauhöhe kann trotz des Doppelkolbens, die auch etwas ineinander gearbeitet sein können, etwas geringer als ein entsprechender Viertakter ausfallen. Die Kurbelwelle kann im Ölbad laufen und ist vor zu starker Hitze geschützt. Ebenso der Kolbenbolzen. Alles ist auf lange Lebensdauer angelegt. Kat ist natürlich auch möglich, ebenso kann das Dieselsystem mit Vor-, Wirbel-Kammer oder direkte Einspritzung angewendet werden.It has many advantages. There can be more air than the room content of the combustion chamber, sucked in and into the burner space are introduced. In addition, a desired Ver seal can be selected. A tipping moment of the smaller piston not applicable. This protects the tread and the life duration increased and high compression enabled. The bigger one Pistons can cope with the tipping moment more easily, especially since it can low compression pressures works. The lubrication can be like for the four-stroke engine, use an oil pump. The overall height can despite the double piston, which also worked somewhat into each other can be slightly less than a corresponding four-stroke fail. The crankshaft can run in an oil bath and is too closed protected from intense heat. Likewise the piston pin. All is designed for a long service life. Kat is of course also possible Likewise, the diesel system with ante, vortex chamber or direct Injection can be applied.

Die Skizze dürfte das Prinzip ausreichend darstellen. Sie zeigt den einfachen, unverwüstlichen Aufbau. Die Nachteile des Zweitakters, wie Geruchsbelästigung, geringe Geräuschdäm­ pfung etc. scheinen weitgehend behoben. Die Ansaugöffnung kann bei reinem Zweitaktprinzip bis etwa zur Höhe des unteren Totpunktes des größeren Kolbens gelegt werden. Die Proportionen der Skizze sind unverbindlich, so kann die Bauhöhe des Motors noch wesentlich verkleinert werden.The sketch should represent the principle sufficiently. It shows the simple, indestructible structure. The disadvantages of the two-stroke engine, such as odor nuisance, low noise insulation testing etc. seem to be largely resolved. The suction opening can with a pure two-stroke principle up to about the height of the lower Dead center of the larger piston. The proportions the sketch are non-binding, so the overall height of the engine can still be significantly reduced.

Claims (1)

Zweitaktmotor mit Doppelkolben, dadurch gekennzeichnet, daß jeder Zylinder zwei hintereinanderliegende Kolben verschiedener Größen aufweist und wobei der kleinere Kolben den Verbrennungsraum, der größere Kolben den Kompressions­ raum bedient und wobei beide Kolben fest miteinander ver­ bunden sind und wobei der größere Kolben das Lager für den Kolbenbolzen aufnimmt und wobei jeweils zwei Zylinder mit um 180 Grad versetzten Kolben in der Weise zusammenarbeiten, daß der größere Kolben die Frischluft ansaugt und nieder- verdichtet und die nieder-verdichtete Luft über eine Lei­ tung in den Brennraum des Zwillingszylinders drückt und wobei die Hochverdichtung im Brennraum erfolgt und die Ver­ brennung über Einspritzen von Brennstoff nach dem Otto- oder Diesel-Prinzip abläuft.Two-stroke engine with a double piston, characterized in that each cylinder has two pistons of different sizes, one behind the other, and the smaller piston serves the combustion chamber, the larger piston the compression chamber, and both pistons are firmly connected to one another and the larger piston is the bearing for the piston pin takes up and where two cylinders with pistons offset by 180 degrees work together in such a way that the larger piston sucks in and compresses the fresh air and presses the low-compressed air via a line into the combustion chamber of the twin cylinder and the high compression in the combustion chamber takes place and the combustion takes place by injecting fuel according to the Otto or Diesel principle.
DE19914115537 1991-05-13 1991-05-13 Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression Ceased DE4115537A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914115537 DE4115537A1 (en) 1991-05-13 1991-05-13 Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914115537 DE4115537A1 (en) 1991-05-13 1991-05-13 Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression

Publications (1)

Publication Number Publication Date
DE4115537A1 true DE4115537A1 (en) 1992-11-19

Family

ID=6431539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914115537 Ceased DE4115537A1 (en) 1991-05-13 1991-05-13 Two-stroke engine with double pistons - has smaller piston for combustion chamber operation, air intake low compression larger piston for combustion chamber with high compression

Country Status (1)

Country Link
DE (1) DE4115537A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617781A1 (en) * 1996-05-04 1997-11-13 Fischinger Martin Gas kinetic injection method for charge feed of IC-engine
FR2810077A1 (en) * 2000-06-08 2001-12-14 Michel Bretegnier Two stroke internal combustion engine includes gas transfer from beneath one cylinder to above second cylinder, recovering excess pressure
DE102007056527A1 (en) 2007-11-19 2009-05-20 Golle Motor Ag Low-emission internal combustion engine, has low-emission counter piston-two-stroke engine or emission-free formed single-piston engine of two or four-stroke design equipped with machines and/or pumps arranged directly to drive piston

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE372807C (en) * 1921-03-09 1923-04-03 T Weickel Dr Method for operating two-stroke internal combustion engines
DE398900C (en) * 1921-08-23 1924-07-18 Wege Motor Ltd Multi-cylinder two-stroke internal combustion engine with controlling stepped pistons
US1601448A (en) * 1923-01-20 1926-09-28 Hutsell Motor Company Internal-combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE372807C (en) * 1921-03-09 1923-04-03 T Weickel Dr Method for operating two-stroke internal combustion engines
DE398900C (en) * 1921-08-23 1924-07-18 Wege Motor Ltd Multi-cylinder two-stroke internal combustion engine with controlling stepped pistons
US1601448A (en) * 1923-01-20 1926-09-28 Hutsell Motor Company Internal-combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617781A1 (en) * 1996-05-04 1997-11-13 Fischinger Martin Gas kinetic injection method for charge feed of IC-engine
DE19617781C2 (en) * 1996-05-04 2000-09-21 Fischinger Martin Device for charging and flushing two-stroke diesel engines
FR2810077A1 (en) * 2000-06-08 2001-12-14 Michel Bretegnier Two stroke internal combustion engine includes gas transfer from beneath one cylinder to above second cylinder, recovering excess pressure
DE102007056527A1 (en) 2007-11-19 2009-05-20 Golle Motor Ag Low-emission internal combustion engine, has low-emission counter piston-two-stroke engine or emission-free formed single-piston engine of two or four-stroke design equipped with machines and/or pumps arranged directly to drive piston

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection