DE3634536A1 - Crankshaft drive with doubled piston strokes - Google Patents

Crankshaft drive with doubled piston strokes

Info

Publication number
DE3634536A1
DE3634536A1 DE19863634536 DE3634536A DE3634536A1 DE 3634536 A1 DE3634536 A1 DE 3634536A1 DE 19863634536 DE19863634536 DE 19863634536 DE 3634536 A DE3634536 A DE 3634536A DE 3634536 A1 DE3634536 A1 DE 3634536A1
Authority
DE
Germany
Prior art keywords
crank
pin
crankshaft
piston strokes
wheel
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.)
Withdrawn
Application number
DE19863634536
Other languages
German (de)
Inventor
Toan Dat Tran
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.)
Tran Toan Dat 7012 Fellbach De
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 DE19863634536 priority Critical patent/DE3634536A1/en
Publication of DE3634536A1 publication Critical patent/DE3634536A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
    • F16H21/28—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with cams or additional guides
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/04—Engines with prolonged expansion in main cylinders
    • 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
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
    • F16H21/30—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with members having rolling contact
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transmission Devices (AREA)

Abstract

Crankshaft drive with doubled piston strokes with the eccentric crank pin (1), which is rotatably mounted on the base pin (4) and rotates in the opposite direction at half the angular velocity, promotes the scavenging and the intake in gas engines with the large stroke OT1. In contrast to the known solutions designed to counter the escape of dangerous fuel during the charge cycle, it is proposed to accomplish this without a special gas valve. The aim of the invention is also to positively influence the quality of the fresh gas without additional supercharging.

Description

Die Erfindung betrifft die Ausgestaltung eines Kurbeltriebes für Kolbenverbrennungskraftmaschine mit doppelten Kolbenhüben OT 1 und OT 2.The invention relates to the configuration of a crank mechanism for a piston internal combustion engine with double piston strokes OT 1 and OT 2 .

Die zu erfüllende Aufgabe der Erfindung besteht darin, das Spülen des verbrannten Abgases und infolgedessen auch das Nachfüllen mit Frischgas bei Verbrennungskraftmaschinen zu verbessern.The object of the invention to be achieved is rinsing of the burned exhaust gas and consequently also the refilling To improve fresh gas in internal combustion engines.

Die beiden Arbeitsvorgänge sind durch den großen Hub OT 1 des vorliegenden Kurbeltriebes sehr vorteilhaft durchgeführt.The two operations are carried out very advantageously by the large stroke OT 1 of the present crank mechanism.

Der Liefergrad eines 4-Taktmotors ist bisher bekanntweise durch großeren Ventilüberschneidungswinkel so weit wie möglich zu erhöhen.The delivery rate of a 4-stroke engine has been known to date to increase the valve overlap angle as much as possible.

Dies hat aber zur Folge bei Gasmotoren, daß die Gefahr von Austritt des Brennstoffes entsteht. Abhilfe mit Sondergasventil ist aufwandig.However, this has the consequence in gas engines that the risk of leakage of fuel arises. Remedy with a special gas valve is complex.

Das von DE-OS 31 15 417 beschribene Kurbeltrieb für Hubkolbenmotor sollte die Verweilzeiten des Kolbens in oberen Umkehrlagen vergrößern. Es ist nur für Langsamläufer geeignet und nicht jedoch für Schnell-läufer, bei den die Verweilzeiten kürzere sind.The crank mechanism for reciprocating engine described by DE-OS 31 15 417 should increase the dwell times of the piston in the upper reverse position. It is only suitable for slow runners and not for High-speed, where the dwell times are shorter.

Aufgabe der Erfindung ist es, ein Kolbentriebwerk mit doppelten Kolbenhüben OT 1 und OT 2 so auszurüsten, daß das Ausschieben und das Nachladen unter großeren Kolbenhub OT 1 verlaufen.The object of the invention is to equip a piston engine with double piston strokes OT 1 and OT 2 so that the pushing out and reloading take place under a larger piston stroke OT 1 .

Diese Aufgabe wird erfindungsmäßig dadurch gelöst, daß die Kurbel (12) die Planetenradpaare (10, 10 a) enthält, die sich um das Lagerrad (8) abrollen und gleichzeitig das Zapfenrad (2) relativ zur Kurbelwelle eine gegenläufige halbe Winkelgeschwindigkeit bewirken, und daß der exzentrische Kurbelzapfen (1) fest am Zapfenrad (2) ist. Am Kurbelzapfen (1) ist wie üblicherweise die Pleuelstange eines Hubkolbens beweglich angeschlossen.This object is achieved according to the invention in that the crank ( 12 ) contains the planetary gear pairs ( 10, 10 a ) which roll around the bearing gear ( 8 ) and at the same time cause the pinion gear ( 2 ) to produce an opposing half angular velocity relative to the crankshaft, and in that the eccentric crank pin ( 1 ) is fixed to the pin wheel ( 2 ). As usual, the connecting rod of a reciprocating piston is movably connected to the crank pin ( 1 ).

Der mit der Erfindung erzielte Vorteil besteht darin, daß die Planetenradspaare (10, 10 a) als Ausgleichsmasse ausgenutzt werden können. Ein weiterer Vorteil liegt darin, daß der Liefergrad auch ohne Lader beim sehr kleinen Ventilüberschneidungswinkel gleichbleibend hoch ist. The advantage achieved by the invention is that the planetary gear pairs ( 10, 10 a ) can be used as a balancing mass. Another advantage is that the degree of delivery is consistently high, even without a loader, with a very small valve overlap angle.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden näher beschrieben:Embodiments of the invention are shown in the drawing and are described in more detail:

Es zeigenShow it

Fig. 1 die schematische Darstellung des Kurbeltriebes mit doppelten Kolbenhüben, der Klarheit halber ohne Pleuelanschluß am Kurbelzapfen (1). Fig. 1 is a schematic representation of the crank mechanism with double piston strokes, for the sake of clarity without connecting rod connection on the crank pin ( 1 ).

Fig. 2 und Fig. 3 die Schnitte Zeichnungen der Fig. 1. Fig. 2 and Fig. 3, the sections drawings FIG. 1.

Fig. 4 die Laufbahn des Kurbelzapfens (1). Fig. 4 shows the career of the crank pin ( 1 ).

Es folgt die Erläuterung der Erfindung anhand der Zeichnungen nach Aufbau und ggf. auch nach Wirkungsweise der dargestellten Erfindung. Fig. 1 zeigt das gebaute Triebwerk insbesondere für Gasmotoren, bei den der Auslaßventil wegen der Gefahr von Gasaustritt früh schließen muß. Ein zweites Kurbeltrieb kann ebenfalls in Reihe anschließen, indem der Zapfen (5) des Grundzapfens (4) am Auge (6 bzw. 6 a) der Zwischenwelle (15 a) fest eingepreßt ist. Das Lagerrad (8) ist vor der Befestigung im Gehäuse (16) so verdreht, bis der Kurbelzapfen (1) in der Laufbahn (Fig. 4) im Bezug auf eine Zylinderrichtung S liegt.There follows the explanation of the invention with reference to the drawings according to structure and possibly also according to the mode of operation of the illustrated invention. Fig. 1 shows the built engine especially for gas engines, in which the exhaust valve must close early due to the risk of gas leakage. A second crank drive can also be connected in series by firmly pressing the pin ( 5 ) of the base pin ( 4 ) onto the eye ( 6 or 6 a ) of the intermediate shaft ( 15 a ). Before mounting in the housing ( 16 ), the bearing wheel ( 8 ) is rotated until the crank pin ( 1 ) lies in the raceway ( FIG. 4) with respect to a cylinder direction S.

Zum Beispiel bei senkrechter Stellung der Kurbel (12) befindet sich der Kurbelzapfen (1) im Punkt 1 (OT 1) bzw 5 (OT 2) oder 3 bzw 7 (Fig. 4).For example, when the crank ( 12 ) is in a vertical position, the crank pin ( 1 ) is at point 1 ( OT 1 ) or 5 ( OT 2 ) or 3 or 7 ( FIG. 4).

Fig. 2 und Fig. 3 zeigen die einander kämmenden Zahnräder. Die Planetenradpaare (10, 10 a), deren Drehachsen R 1 und R 2 sind, greifen einerseits das Lagerrad (8) mit den Räder (9, 9 a) und anderseits das Zapfenrad (2) mit den Räder (3, 3 a). Die Übersetzung des Zapfenrades (2) zu dem Lagerrad (8) beträgt 2: Fig. 2 and Fig. 3 show the meshing gears. The planetary gear pairs ( 10, 10 a ), whose axes of rotation are R 1 and R 2 , on the one hand engage the bearing wheel ( 8 ) with the wheels ( 9, 9 a ) and on the other hand the pinion gear ( 2 ) with the wheels ( 3, 3 a ) . The translation of the pinion wheel ( 2 ) to the bearing wheel ( 8 ) is 2:

Das Zapfenrad (2) enthält eine Bohrung (2 a) für den Ausgleich der Unwucht vom exzentrischen Kurbelzapfen (1).The pinion ( 2 ) contains a hole ( 2 a ) for compensating for the unbalance of the eccentric crank pin ( 1 ).

Fig. 4 Die Laufbahn des Kurbelzapfens (1) ist eine verschlungene Epitrochoide neben dem P-Kreis des Grundzapfens (4). Die Pfeile verdeutlichen die Umlaufrichtung mit Anhaltpunkten (1-8) nach alle 90 Grad Kurbelwinkel. Die Schubrichtung S des Kolbens ist mittig in der Epitrochoide angeordnet. Die Hubdifferenz OT 1-OT 2 beträgt 2e2. Bei einem 4-Taktgasmotor entsprechen die Strecken 1-2-3 dem Ansaugtakt, 3-4-5 dem Verdichtungstakt, 5-6-7 dem Expansionstakt, 7-8-9 dem Spültakt. Fig. 4 The career of the crank pin ( 1 ) is a tortuous epitrochoid next to the P-circle of the base pin ( 4 ). The arrows show the direction of rotation with stopping points ( 1-8 ) after every 90 degree crank angle. The direction of thrust S of the piston is arranged centrally in the epitrochoid. The stroke difference OT 1 - OT 2 is 2 e 2. With a 4-stroke gas engine, the distances 1-2-3 correspond to the intake stroke, 3-4-5 to the compression stroke, 5-6-7 to the expansion stroke, 7-8-9 to Flushing cycle.

Claims (3)

Patentanspruch 1Claim 1 Kurbeltrieb mit doppelten Kolbenhüben mit dem sekundären Exzenter, der sich aus einem zentrischen Zapfenrad (2) und einem exzentrischen Kurbelzapfen (1) zusammensetzt, dadurch gekennzeichnet, daß die Kurbel (12) in Augen (13, 13 a) die Planetenradpaare (10, 10 a) enthält, die das Zapfenrad (2) übergreifen und gleichzeitig sich um das gehäusefeste Lagerrad (8) abwälzen, und der Grundzapfen (4) gegenüber, dessen Achse P im Abstand von OP=e1 von Hauptdrehachse O der Kurbelwelle (15) ist, auf dem der sekundäre Exzenter drehbar gelagert ist, sich in der Kurbelkröpfung (12 a) ausbildet und im Auge (6) der Zwischenwelle (15 a) fest eingeschoben ist, und die Kurbelwelle (15) im Innenlager (11) des Lagerrades (8) gelagert ist (Fig. 1). Patentanspruch 2 nach 1 Crank drive with double piston strokes with the secondary eccentric, which is composed of a central pin wheel ( 2 ) and an eccentric crank pin ( 1 ), characterized in that the crank ( 12 ) in eyes ( 13, 13 a ) the planetary gear pairs ( 10, 10 a ), which overlap the pin wheel ( 2 ) and at the same time roll around the bearing wheel ( 8 ) fixed to the housing, and the base pin ( 4 ) opposite, whose axis P is at a distance of OP = e 1 from the main axis of rotation O of the crankshaft ( 15 ) on which the secondary eccentric is rotatably mounted, to (a 12) is formed in the crankpin and the intermediate shaft (15 a) is inserted firmly in the eye (6) and the crankshaft (15) in the inner bearing (11) of the bearing wheel (8 ) is stored ( Fig. 1). Claim 2 according to 1 Kurbeltrieb mit doppelten Kolbenhüben dadurch gekennzeichnet, daß die Achse Q des exzentrischen Kurbelzapfens (1) im Abstand PQ=e2 von P ist, und das Zapfenrad (2) sich relativ zur Kurbelwelle (15) mit einer gegenläufigen halben Winkelgeschwindigkeit dreht. Patentanspruch 3 nach 1 und 2 Crank drive with double piston strokes, characterized in that the axis Q of the eccentric crank pin ( 1 ) is at a distance PQ = e 2 from P , and the pin wheel ( 2 ) rotates relative to the crankshaft ( 15 ) at an opposite half angular velocity. Claim 3 according to 1 and 2 Kurbeltrieb mit doppelten Kolbenhüben dadurch gekennzeichnet, daß die Zwischenwelle (15 a) konzentrisch zur Hauptwelle (15) im Gehäuselager (11 a) gelagert ist und die Ausgleichmassen (7 und 7 a) sowie ein weiteres Auge (6 a) enthält, an dem ein zweites Kurbeltrieb in Reihe angebaut werden kann, und die paarweise angeordneten Kurbeltriebe über eine drehfeste Vorrrichtung (14) zusammen verbunden sind.Crankshaft with double piston strokes characterized in that the intermediate shaft (15 a) is (a 11) mounted concentrically to the main shaft (15) in the housing bearing and the compensating masses containing (7 and 7a) and another eye (6 a) on which a second crank mechanism can be mounted in series, and the crank mechanisms arranged in pairs are connected together via a non-rotatable device ( 14 ).
DE19863634536 1986-10-10 1986-10-10 Crankshaft drive with doubled piston strokes Withdrawn DE3634536A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863634536 DE3634536A1 (en) 1986-10-10 1986-10-10 Crankshaft drive with doubled piston strokes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863634536 DE3634536A1 (en) 1986-10-10 1986-10-10 Crankshaft drive with doubled piston strokes

Publications (1)

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DE3634536A1 true DE3634536A1 (en) 1987-02-19

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Family Applications (1)

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DE19863634536 Withdrawn DE3634536A1 (en) 1986-10-10 1986-10-10 Crankshaft drive with doubled piston strokes

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008095A1 (en) * 1987-04-13 1988-10-20 Heinz Frey Crank mechanism
WO1996035864A1 (en) * 1995-05-09 1996-11-14 Antoni Wierzbicki Crank mechanism of variable crank throw
JP2012533021A (en) * 2009-07-15 2012-12-20 ヨハネス・ヤーコブス・ヨセフス・スレパー Reciprocating piston mechanism
US20140360292A1 (en) 2012-01-24 2014-12-11 Joannes Jacobus Josephus SLEPER Reciprocating piston mechanism
US10145299B2 (en) 2014-04-08 2018-12-04 Gomecsys B.V. Internal combustion engine including variable compression ratio
US10233966B2 (en) 2013-11-13 2019-03-19 Gomecsys B.V. Method of assembling and an assembly of a crankshaft and a crank member
US10557409B2 (en) 2015-10-22 2020-02-11 Gomecsys B.V. Heat engine comprising a system for varying the compression ratio

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008095A1 (en) * 1987-04-13 1988-10-20 Heinz Frey Crank mechanism
US4966043A (en) * 1987-04-13 1990-10-30 Heinz Frey Crank drive
WO1996035864A1 (en) * 1995-05-09 1996-11-14 Antoni Wierzbicki Crank mechanism of variable crank throw
JP2012533021A (en) * 2009-07-15 2012-12-20 ヨハネス・ヤーコブス・ヨセフス・スレパー Reciprocating piston mechanism
US9279363B2 (en) 2009-07-15 2016-03-08 Gomecsys B.V. Reciprocating piston mechanism
US20140360292A1 (en) 2012-01-24 2014-12-11 Joannes Jacobus Josephus SLEPER Reciprocating piston mechanism
US10234006B2 (en) 2012-01-24 2019-03-19 Gomecsys B.V. Reciprocating piston mechanism
US10233966B2 (en) 2013-11-13 2019-03-19 Gomecsys B.V. Method of assembling and an assembly of a crankshaft and a crank member
US10145299B2 (en) 2014-04-08 2018-12-04 Gomecsys B.V. Internal combustion engine including variable compression ratio
US10557409B2 (en) 2015-10-22 2020-02-11 Gomecsys B.V. Heat engine comprising a system for varying the compression ratio

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8127 New person/name/address of the applicant

Owner name: TRAN, TOAN DAT, 7012 FELLBACH, DE

8139 Disposal/non-payment of the annual fee