DE4216565A1 - Engine with loop type crankshaft drive - has medium compression chamber with valves at rear of piston engaging with sealing plate - Google Patents

Engine with loop type crankshaft drive - has medium compression chamber with valves at rear of piston engaging with sealing plate

Info

Publication number
DE4216565A1
DE4216565A1 DE19924216565 DE4216565A DE4216565A1 DE 4216565 A1 DE4216565 A1 DE 4216565A1 DE 19924216565 DE19924216565 DE 19924216565 DE 4216565 A DE4216565 A DE 4216565A DE 4216565 A1 DE4216565 A1 DE 4216565A1
Authority
DE
Germany
Prior art keywords
valves
combustion engine
internal combustion
piston
engine according
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Withdrawn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
DE19924216565
Other languages
German (de)
Inventor
Joerg Dipl Ing Faehland
Klaus-Dieter Dr Emmenthal
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19924216565 priority Critical patent/DE4216565A1/en
Publication of DE4216565A1 publication Critical patent/DE4216565A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • F02B25/145—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke with intake and exhaust valves exclusively in the cylinder head
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The piston-type internal-combuston engine has a loop-type crankshaft-drive with the piston rod travelling in a straight line and passing through a plate sealing a variable-volume chamber on the piston rear side. The chamber (10) forms a compression chamber for a medium and with inlet and outlet valves (21, 22). These are accommodated in inlet and outlet passages (17, 18) machined in the plate (9). The medium compressed can be charge air for the engine, and the valves can be non-return ones, opening only under pressure in the inlet and outlet directions. The passages can run between an outer edge of the plate and an inner one enclosing the compression chamber. ADVANTAGE - Makes practical use of volume alteriation of chamber at rear of piston.

Description

Die Erfindung betrifft eine gattungsgemäße Hubkolben-Brennkraft­ maschine sogenannte Kurbelschleifenmaschinen, wie sie beispiels­ weise die DE-OS 35 00 644, F01B 23/08, beschreibt, zeichnen sich dadurch aus, daß die starr, d. h. nicht schwenkbar, mit einem Hubkolben der Maschine verbundene Kolbenstange eine Kurbelschleife trägt, die einen Gleitstein an einem Kurbelzapfen der zugehörigen Kurbelwelle quer zur Richtung der Kolbenbewegung verschiebbar auf­ nimmt.The invention relates to a generic reciprocating piston internal combustion engine machine so-called crank grinding machines, such as those as described in DE-OS 35 00 644, F01B 23/08, stand out in that the rigid, d. H. not swiveling, with one Reciprocating piston of the machine connected piston rod to a crank loop who carries a sliding block on a crank pin of the associated Crankshaft slidable transversely to the direction of piston movement takes.

Der Erfindung liegt die Aufgabe zugrunde, mit einfachen Mitteln die Tatsache der durch die Bewegungen des Hubkolbens erfolgenden peri­ odischen Größenänderung des abgedichteten Raums auf der Kolbenrück­ seite nutzbar zu machen.The invention is based, with simple means the Fact of the peri resulting from the movements of the reciprocating piston Odical resizing of the sealed space on the piston rear make the site usable.

Die erfindungsgemäße Lösung dieser Aufgabe besteht in den kenn­ zeichnenden Merkmalen des Hauptanspruchs, vorteilhafte Ausbildungen der Erfindung beschreiben die Unteransprüche.The inventive solution to this problem consists in the drawing features of the main claim, advantageous training the invention describe the subclaims.

Die Erfindung sieht also in vorteilhafter Weise in einem ohnehin erforderlichen Bauteil der Maschine, nämlich der Platte zum dichten Durchführen der Kolbenstange, Zu- und Abfuhrkanäle und im Zuge der­ selben Zu- und Abfuhrventile vor, so daß der betrachtete auf der Kolbenrückseite liegende Raum als Verdichterraum beispielsweise zur Lieferung hochgespannter Ladeluft für die Brennkraftmaschine selbst herangezogen werden kann. The invention therefore advantageously sees in any case required part of the machine, namely the plate for sealing Carrying out the piston rod, supply and discharge channels and in the course of same supply and discharge valves before, so that the considered on the Piston back space as a compressor space for example Delivery of high-tension charge air for the internal combustion engine itself can be used.  

Zwei Ausführungsbeispiele der Erfindung werden im folgenden anhand der Zeichnung erläutert, deren Figuren Längsschnitte durch die ge­ samte Maschine bzw. durch den Bereich der mit den Zu- und Abfuhr­ kanälen versehenen Platte wiedergeben.Two embodiments of the invention are described below of the drawing, the figures of which are longitudinal sections through the ge entire machine or through the area with the supply and discharge play backed disc.

Betrachtet man zunächst Fig. 1, so erkennt man bei 1 den in einem hier wassergekühlten Zylinder 2 laufenden Hubkolben. Oberhalb des­ selben befindet sich der Arbeits- oder Verbrennungsraum 3 der Ma­ schine, der über die mit nockenbestückten Hubventilen 4 und 5 ver­ sehenen Ladungswechselleitungen 6 und 7 mit Ladeluft bzw. Frischgas beliefert und von verbrannten Abgasen befreit wird. Dieser Ladungs­ wechsel ist absolut üblich und braucht im Einzelnen nicht erläutert zu werden.Looking first at FIG. 1, one can see at 1 the reciprocating piston running in a water-cooled cylinder 2 here. Above the same is the working or combustion chamber 3 of the machine, which is supplied with charge air or fresh gas and freed of burnt exhaust gases via the charge exchange lines 6 and 7 provided with cam valves 4 and 5 . This charge change is absolutely common and does not need to be explained in detail.

Starr mit dem Kolben 1 verbunden ist die Kolbenstange 8, da sie nur Längsbewegungen in Richtung der Bewegungen des Kolbens 1, nicht aber wie bei üblichen Hubkolbenmaschinen auch Schwenkbewegungen um einen Kolbenzapfen ausführt. Sie durchsetzt dicht die allgemein mit 9 bezeichnete Platte, die einen infolge der Bewegung des Kolbens 1 periodisch größenveränderbaren Raum 10 begrenzt und diesen vom Kur­ belraum 11 trennt. Innerhalb desselben ist starr mit der Kolben­ stange 8 die Kurbelschleife 12 verbunden, die den Gleitstein 13 auf der Kurbelwange 14 einer im übrigen nicht dargestellten, da üb­ lichen Kurbelwelle der Maschine querverschiebbar führt. Durch diese Anordnung werden also Längsbewegungen der Kolbenstange 8 in Rotationsbewegungen der Kurbelwelle umgesetzt.The piston rod 8 is rigidly connected to the piston 1 , since it only executes longitudinal movements in the direction of the movements of the piston 1 , but not, as in conventional reciprocating piston machines, also swiveling movements around a piston pin. It penetrates tightly the plate generally designated 9 , which limits a space 10 which can be changed in size periodically as a result of the movement of the piston 1 and separates it from the cure belraum 11 . Within the same is rigidly connected to the piston rod 8, the crank loop 12 , the sliding block 13 on the crank arm 14 of an otherwise not shown, since ü union crankshaft of the machine leads transversely. With this arrangement, longitudinal movements of the piston rod 8 are converted into rotational movements of the crankshaft.

Die Kurbelschlaufe 12 befindet sich innerhalb des Kurbelgehäuses 14, das auch eine weitere Führung 15 für das untere Ende der Kurbelstange 8 enthält. Unterhalb der beschriebenen Gesamtanordnung erkennt man die Ölwanne 16.The crank loop 12 is located within the crankcase 14 , which also contains a further guide 15 for the lower end of the crank rod 8 . The oil pan 16 can be seen below the overall arrangement described.

Wie bereits angegeben, ändert sich die Größe des Raums 10 in Ab­ hängigkeit von der Bewegung des Kolbens 1 periodisch. Diese Tat­ sache wird bei der Erfindung dadurch ausgenutzt, daß der Raum 10 als Verdichterraum mit in diesem Ausführungsbeispiel einem Zufuhr­ kanal 17 und einem Abfuhrkanal 18 für ein zu verdichtendes Medium, hier Ladeluft für die Maschine, versehen ist. Diese Kanäle 17 und 18 sind in die allgemein mit 9 bezeichnete Führungsplatte einge­ arbeitet, und zwar genauer gesagt in den rahmenähnlichen äußeren Bereich 19 derselben, der sich in Fig. 1 in Richtung nach unten in dem Kurbelgehäuse 14 fortsetzt und von dem flacheren inneren Be­ reich 20, der zur dichten Durchführung der Kolbenstange 8 ausge­ bildet ist, ergänzt wird. Beide Kanäle 17 und 18 sind mit hier als Zungenventilen ausgebildeten Rückschlagventilen 21 und 22 als Zu- bzw. Abfuhrventil versehen, von denen das Ventil 21 eingangsseitig mit der Lufteinlaßleitung 23 in Verbindung steht, während das andere Ventil 22 in die Ladeluftleitung 6 mündet, in deren Verlauf der Ladeluftkühler 24 und die als Leistungsstellglied der Maschine dienende Drosselklappe 25 vorgesehen sind. Das bedeutet, daß bei Aufwärtsbewegung des Kolbens 1 infolge der sich einstellenden Druckverhältnisse nur das Zufuhrventil 21, nicht aber das Abfuhr­ ventil 22 sich öffnet; bei Abwärtsbewegung des Kolbens 1 kehren sich die Verhältnisse um.As already stated, the size of the space 10 changes periodically depending on the movement of the piston 1 . This fact is exploited in the invention in that the space 10 as a compressor space with a feed channel 17 and a discharge channel 18 for a medium to be compressed, here charge air for the machine, is provided in this embodiment. These channels 17 and 18 are in the generally designated 9 guide plate works, more specifically in the frame-like outer portion 19 of the same, which continues in Fig. 1 in the downward direction in the crankcase 14 and rich from the flatter inner loading 20 , which is formed for the tight implementation of the piston rod 8 , is added. Both channels 17 and 18 are provided with check valves 21 and 22 designed as tongue valves as supply and discharge valves, of which the valve 21 is connected on the inlet side to the air inlet line 23 , while the other valve 22 opens into the charge air line 6 , in the latter Course of the charge air cooler 24 and the throttle valve 25 serving as the power actuator of the machine are provided. This means that when the piston 1 moves upward, only the supply valve 21 , but not the discharge valve 22 , opens as a result of the pressure conditions which arise; when piston 1 moves down, the situation is reversed.

Während in der Ausführungsform nach Fig. 1 Zungenventile 21 und 22 Einsatz finden, zeigt Fig. 2 ein Beispiel mit einer einteiligen Führungsplatte 30; die von der Kolbenstange durchsetzte Öffnung 31 ist mit einer Dichtung 32 versehen. Der dem Teil 2 in Fig. 1 ent­ sprechende Zylinder trägt das Bezugszeichen 33. In diesem Ausfüh­ rungsbeispiel sind die dem Zu- und Abfuhrkanal 34 bzw. 35 zugeord­ neten Ventile 36 und 37 als Hubventile ausgebildet; sie stellen je­ doch wiederum druckabhängig betätigte Rückschlagventile dar.While tongue valves 21 and 22 are used in the embodiment according to FIG. 1, FIG. 2 shows an example with a one-piece guide plate 30 ; the opening 31 penetrated by the piston rod is provided with a seal 32 . The part 2 in FIG. 1 speaking cylinder has the reference numeral 33 . In this exemplary embodiment, the supply and discharge channels 34 and 35 assigned valves 36 and 37 are designed as lift valves; however, they in turn represent pressure-operated check valves.

Mit der Erfindung ist demgemäß eine gattungsgemäße Maschine ge­ schaffen, die mit einfachen Mitteln zu einem Verdichter ergänzt ist.With the invention is accordingly a generic machine ge create that complements to a compressor with simple means is.

Claims (7)

1. Hubkolben-Brennkraftmaschine nach Art einer Kurbelschleifenma­ schine, in der eine Linearbewegungen ausführende Kolbenstange eine einen größenveränderlichen Raum auf der Kolbenrückseite dichtend begrenzende Platte durchsetzt, dadurch gekennzeichnet, daß der Raum (10) als Verdichterraum für ein zu verdichtendes Medium mit Zu- und Abfuhrventilen (21, 22) versehen ist, die im Zuge von in die Platte (9) eingearbeiteten Zu- und Abfuhrkanälen (17, 18) angeordnet sind.1. Reciprocating internal combustion engine in the manner of a crank machine, in which a linear movement piston rod passes through a size-changing space on the piston rear side sealing plate, characterized in that the space ( 10 ) as a compressor chamber for a medium to be compressed with supply and discharge valves ( 21 , 22 ) is provided, which are arranged in the course of supply and discharge channels ( 17 , 18 ) incorporated into the plate ( 9 ). 2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, daß, das Medium Ladeluft für die Maschine ist.2. Internal combustion engine according to claim 1, characterized in that, the medium is charge air for the machine. 3. Brennkraftmaschine nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß die Ventile (21, 22) druckabhängig nur in Zu- bzw. Ab­ fuhrrichtung öffnende Rückschlagventile sind.3. Internal combustion engine according to claim 1 or 2, characterized in that the valves ( 21 , 22 ) are pressure-dependent only in the feed or Ab opening direction check valves are opening. 4. Brennkraftmaschine nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß die Kanäle (17, 18) zwischen einem Außen- und einem den Verdichtungsraum (10) begrenzenden Innenrand der Plat­ te (9) verlaufen.4. Internal combustion engine according to one of claims 1 to 3, characterized in that the channels ( 17 , 18 ) between an outer and a compression space ( 10 ) delimiting inner edge of the plat te ( 9 ). 5. Brennkraftmaschine nach Anspruch 4, dadurch gekennzeichnet, daß die Platte (9) einen die Kanäle (17, 18) aufnehmenden rahmen­ artigen äußeren Bereich (19) und einen flacheren inneren Bereich (20) besitzt, der von der Kolbenstange (8) durchsetzt ist. 5. Internal combustion engine according to claim 4, characterized in that the plate ( 9 ) has a channels ( 17 , 18 ) receiving frame-like outer region ( 19 ) and a flatter inner region ( 20 ) which passes through by the piston rod ( 8 ) is. 6. Brennkraftmaschine nach Anspruch 5, dadurch gekennzeichnet, daß die beiden Bereiche (19, 20) dicht zusammengefügte separate Bau­ teile sind.6. Internal combustion engine according to claim 5, characterized in that the two areas ( 19 , 20 ) are closely assembled separate construction parts. 7. Brennkraftmaschine nach Anspruch 5 oder 6, dadurch gekennzeich­ net, daß sich der äußere Bereich (19) topfartig in einem Kurbel­ gehäuse (14) fortsetzt.7. Internal combustion engine according to claim 5 or 6, characterized in that the outer region ( 19 ) continues in a pot-like manner in a crankcase ( 14 ).
DE19924216565 1991-06-03 1992-05-20 Engine with loop type crankshaft drive - has medium compression chamber with valves at rear of piston engaging with sealing plate Withdrawn DE4216565A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924216565 DE4216565A1 (en) 1991-06-03 1992-05-20 Engine with loop type crankshaft drive - has medium compression chamber with valves at rear of piston engaging with sealing plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4118207 1991-06-03
DE19924216565 DE4216565A1 (en) 1991-06-03 1992-05-20 Engine with loop type crankshaft drive - has medium compression chamber with valves at rear of piston engaging with sealing plate

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DE4216565A1 true DE4216565A1 (en) 1992-12-10

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785347A1 (en) * 1994-07-13 1997-07-23 Jury Nikolaevich Skripov Two-stroke internal combustion engine
WO2008019826A1 (en) * 2006-08-16 2008-02-21 Peter Pelz Internal combustion engine having integrated supercharging
GB2526336A (en) * 2014-05-21 2015-11-25 Jon Otegui Van Leeuw Efficient two-stroke engine
EP3054122A1 (en) * 2015-02-06 2016-08-10 Winterthur Gas & Diesel Ltd. Internal combustion engine, method for operating an internal combustion engine, cylinder, cylinder liner and closing plate for an internal combustion engine
WO2017122036A1 (en) * 2016-01-13 2017-07-20 OLáH ANTAL Common air supercharged four-stroke internal combustion engine with overheated fuel injection and screened combustion chamber
DE102021207144A1 (en) 2021-07-07 2023-01-12 Bernd Rodemüller Two-stroke reciprocating engine with exactly one working cylinder and mass balance

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785347A1 (en) * 1994-07-13 1997-07-23 Jury Nikolaevich Skripov Two-stroke internal combustion engine
EP0785347A4 (en) * 1994-07-13 1999-09-01 Jury Nikolaevich Skripov Two-stroke internal combustion engine
WO2008019826A1 (en) * 2006-08-16 2008-02-21 Peter Pelz Internal combustion engine having integrated supercharging
GB2526336A (en) * 2014-05-21 2015-11-25 Jon Otegui Van Leeuw Efficient two-stroke engine
EP3054122A1 (en) * 2015-02-06 2016-08-10 Winterthur Gas & Diesel Ltd. Internal combustion engine, method for operating an internal combustion engine, cylinder, cylinder liner and closing plate for an internal combustion engine
CN105863821A (en) * 2015-02-06 2016-08-17 温特图尔汽柴油公司 Internal combustion engine, method for operating the internal combustion engine, and cylinder, cylinder liner and closing plate for the internal combustion engine
WO2017122036A1 (en) * 2016-01-13 2017-07-20 OLáH ANTAL Common air supercharged four-stroke internal combustion engine with overheated fuel injection and screened combustion chamber
DE102021207144A1 (en) 2021-07-07 2023-01-12 Bernd Rodemüller Two-stroke reciprocating engine with exactly one working cylinder and mass balance
DE102021207144B4 (en) 2021-07-07 2023-03-02 Bernd Rodemüller Two-stroke reciprocating engine with exactly one working cylinder and mass balance

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