DE10017806A1 - Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber. - Google Patents

Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber.

Info

Publication number
DE10017806A1
DE10017806A1 DE2000117806 DE10017806A DE10017806A1 DE 10017806 A1 DE10017806 A1 DE 10017806A1 DE 2000117806 DE2000117806 DE 2000117806 DE 10017806 A DE10017806 A DE 10017806A DE 10017806 A1 DE10017806 A1 DE 10017806A1
Authority
DE
Germany
Prior art keywords
air
cylinders
crankcase
piston
connecting rod
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
DE2000117806
Other languages
German (de)
Inventor
Udo Wagener
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
Priority claimed from DE2000107346 external-priority patent/DE10007346A1/en
Application filed by Individual filed Critical Individual
Priority to DE2000117806 priority Critical patent/DE10017806A1/en
Publication of DE10017806A1 publication Critical patent/DE10017806A1/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
    • F02B33/26—Four-stroke engines characterised by having crankcase pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/02—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • F01B9/023—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft of Bourke-type or Scotch yoke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/02—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • F01B9/026—Rigid connections between piston and rod; Oscillating pistons
    • 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
    • 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
    • F02B33/12—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 the rear face of working piston acting as pumping member and co-operating with a pumping chamber isolated from crankcase, the connecting-rod passing through the chamber and co-operating with movable isolating member
    • 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
    • F02B75/246—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "pancake" type, e.g. pairs of connecting rods attached to common crankshaft bearing

Abstract

The flat-build engine has stacked cylinder pairs (3) and an externally ventilated crankcase (26) pressuretightly and coaxially sealed to superposed cylinders each end. The smoothwalled pistons (4) work via four commonly mounted (28) pushrods (5) and connecting rod (29) on the crankshaft (2). Four pushrod guides (6) pressuretightly fitted to the crankcase together with the inside sector of the cylinders and the hollow piston (4) form respective chambers for pre-compressing the combustion air assisted by respective intake channels and shuttle valve in the cylinder foot per chamber (21). The pre-compressed air is discharged via outlet (8) and with the air of the valve (10) fed into the charging line (9). Each piston has a lubricating groove and oil scraper ring (18) straddled by two piston-rings (19) above and one piston ring below.

Description

Die Kurbelscheife 1, wird wie in den Fig. 1-4 dargestellt durch die Schubstangenaufnahme 28, ersetzt die mit 4 Stück Schubstangen 5, und den dazugehörigen Motorkolben 4, fest verbunden ist. Die Kraftabnahme erfolgt über ein herkömmliches Pleuel 29, was über den Bolzen für Schubstangenaufnahme 31, in der Schubstangenaufnahme 28, gelagert ist. Die untere Kraftabnahme erfolgt wie üblich über die Kurbelkröpfung 27, auf die Kurbelwelle 2, Alle Arbeitsabläufe und Funktionen sind die gleichen wie in Beschreibung aus 100 07 346.8.The crank disc 1 , as shown in FIGS. 1-4, is replaced by the push rod receptacle 28 , which is firmly connected to 4 push rods 5 and the associated engine pistons 4 . The force is removed via a conventional connecting rod 29 , which is mounted on the pin for push rod holder 31 , in the push rod holder 28 . As usual, the lower power take-off takes place via crank crank 27 , on crankshaft 2. All work processes and functions are the same as in the description from 100 07 346.8.

Fig. 1: Stellt den Motor in der Seitenansicht im oberen Totpunkt links dar. Fig. 1: shows the engine in the side view at top dead center on the left.

Fig. 2: Stellt den Motor in der Seitenansicht im oberen Totpunkt rechts dar. Fig. 2: shows the engine in the side view at top dead center on the right.

Fig. 3: Stellt den Motor in der Draufsicht im oberen Totpunkt links dar. Fig. 3: shows the engine in top view at top dead center on the left.

Fig. 4: Stellt die Schubstangenaufnahme im Schnitt in Hubrichtung dar. Fig. 4: shows the push rod holder in section in the stroke direction.

BezugszeichenlisteReference list

11

Kurbelschleife
Crank loop

22

Kurbelwelle
crankshaft

33rd

Zylinder
cylinder

44

Motorkolben
Engine pistons

55

Schubstange
Push rod

66

Schubstangenführung
Push rod guide

77

Ansaugkanal
Intake duct

88th

Ladeluftauslaß
Charge air outlet

99

Ladeluftleitung
Charge air line

1010th

Flatterventil
Flap valve

1111

Ladeluftausgleichbehälter
Charge air expansion tank

1212th

Einlaßventil
Inlet valve

1313

Auslaßventil
Exhaust valve

1414

Abgaskanal
Exhaust duct

1515

Stößel
Pestle

1616

Nockenwelle
camshaft

1717th

umlaufende Schmiernut
all-round lubrication groove

1818th

Ölabstreifring
Oil control ring

1919th

Kolbenring
Piston ring

2020th

Überdruckventil
Pressure relief valve

2121

Ladeluftkammer
Charge air chamber

2222

Kurbelzapfen
Crank pin

2323

Ölzuleitung für Oil supply line for

1717th

2424th

Ölrücklaufleitung für Oil return line for

1717th

2525th

Brücke für Bridge for

1717th

2626

Kurbelgehäuse
Zylinderanordnung
A Zylinder links oben
B Zylinder rechts oben
C Zylinder links unten
D Zylinder rechts unten
Bezugszeichenlistenerweiterung (Zusatzanmeldung zu Az: 100 07 Crankcase
Cylinder arrangement
A top left cylinder
B cylinder top right
C cylinder bottom left
D cylinder bottom right
Extension of the reference symbol list (additional registration for Az: 100 07

346.8346.8

)
)

22

Kurbelwelle mit Hauptlagerstelle
Crankshaft with main bearing point

2727

Kurbelkröpfung
Crank crank

2828

Schubstangenaufnahme
Push rod holder

2929

Pleuel
Connecting rod

3030th

Pleuelauge
Connecting rod eye

3131

Bolzen für Schubstangenaufnahme
Bolt for push rod holder

Claims (4)

1. Viertaktmotor, gekennzeichnet durch eine Ausbildung als Flachmotor, mit paarweise gestapelten Zylindern (3) und einem nach außen belüfteten Kurbelgehäuse (26), zwei an gegenüberliegenden Seiten des Kurbel­ gehäuses (26) angebrachten, druckfest abgedichteten und koaxial angeordneten übereinander liegenden Zylindern (3) mit glattwandigen Motorkolben (4) die über vier Schubstangen (5) auf nur einer Schubstangenaufnahme (28) über das Pleuel (29) auf die Kurbelwelle (2) wirken, vier am Kurbelgehäuse (26) druckfest angebrachte Schubstangenführungen (6) die zusammen mit dem inneren Abschnitt der Zylinder (3) und den als Hohlkolben ausgebildeten Motorkolben (4) jeweils eine Ladekammer (21) zum Vorverdichten der Verbrennungsluft bilden, jeweils einem Ansaugkanal (7) mit mindestens einem Flatterventil (10) im Zylinderfuß für die Ansaugluft, je einer Ladekammer (21), einem Ladeluftauslaß (8) mit mindestens einem Flatterventil (10) um die vorverdichtete Ladeluft in die Ladeluftleitung (9) zu drücken, einer Kolbenschmierung durch umlaufende Schmiernut (17) jeweils ein Ölabstreifring (18) oberhalb und unterhalb der Schmiernut (17) zwei Kolbenringe (19) oberhalb der Ölabstreifringe (18) und ein Kolbenring (19) unterhalb der Ölabstreifringe (18) in der Zylinderwand (3).1. four-stroke engine, characterized by a design as a flat engine, with pairs of stacked cylinders ( 3 ) and an outwardly ventilated crankcase ( 26 ), two on opposite sides of the crankcase ( 26 ) attached, pressure-tightly sealed and coaxially arranged cylinders ( 3 ) with smooth-walled engine pistons ( 4 ) which act on the crankshaft ( 2 ) via four connecting rods ( 5 ) on only one connecting rod receptacle ( 28 ) via the connecting rod ( 29 ), four push rod guides ( 6 ) attached to the crankcase ( 26 ) in a pressure-resistant manner, which together with The inner section of the cylinders ( 3 ) and the engine pistons ( 4 ) designed as hollow pistons each form a loading chamber ( 21 ) for pre-compressing the combustion air, each with an intake duct ( 7 ) with at least one flap valve ( 10 ) in the cylinder base for the intake air, one each Loading chamber ( 21 ), a charge air outlet ( 8 ) with at least one flap valve ( 10 ) around the vorver to press sealed charge air into the charge air line ( 9 ), a piston lubrication through circumferential lubrication groove ( 17 ) one oil scraper ring ( 18 ) above and below the lubrication groove ( 17 ) two piston rings ( 19 ) above the oil scraper rings ( 18 ) and one piston ring ( 19 ) below the oil control rings ( 18 ) in the cylinder wall ( 3 ). 2. Viertaktmotor nach Anspruch 1, dadurch gekennzeichnet, daß über die Schubstangenaufnahme (28) die Kraftabnahme für 4 Zylinder (3) gleichzeitig über nur ein Pleuel (29) auf die Kurbelwelle (2) übertragen wird.2. Four-stroke engine according to claim 1, characterized in that the power take-off for 4 cylinders ( 3 ) is transmitted simultaneously via only one connecting rod ( 29 ) to the crankshaft ( 2 ) via the connecting rod receptacle ( 28 ). 3. Viertaktmotor nach Anspruch 1-2, dadurch gekennzeichnet, daß das Pleuelauge (30) mit dem Bolzen für Schubstangenaufnahme (31) in der Schubstangenaufhahme (28) gelagert ist.3. Four-stroke engine according to claim 1-2, characterized in that the connecting rod eye ( 30 ) with the bolt for push rod holder ( 31 ) is mounted in the push rod holder ( 28 ). 4. Viertaktmotor nach Anspruch 1-3, dadurch gekennzeichnet, daß die Schubstangenaufnahme (28) mit 4 Stk. Schubstangen (5) fest verbunden ist.4. Four-stroke engine according to claims 1-3, characterized in that the push rod receptacle ( 28 ) with 4 pcs. Push rods ( 5 ) is fixedly connected.
DE2000117806 2000-02-18 2000-04-10 Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber. Ceased DE10017806A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000117806 DE10017806A1 (en) 2000-02-18 2000-04-10 Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000107346 DE10007346A1 (en) 2000-02-18 2000-02-18 Four-cycle engine designed as a flat engine for automatic pressure charging incorporates a ventilated crankcase, two compression-proof tightened cylinders with pistons acting on a crankshaft through four con-rods.
DE2000117806 DE10017806A1 (en) 2000-02-18 2000-04-10 Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber.

Publications (1)

Publication Number Publication Date
DE10017806A1 true DE10017806A1 (en) 2001-07-05

Family

ID=26004400

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000117806 Ceased DE10017806A1 (en) 2000-02-18 2000-04-10 Four-stroke internal combustion engine has pairs of coaxially superposed cylinders both ends of air-cooled crankcase and four pushrods and shuttle valve forming air-precompression chamber.

Country Status (1)

Country Link
DE (1) DE10017806A1 (en)

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