DE102017122941A1 - Reciprocating internal combustion engine with a hydraulic adjusting mechanism - Google Patents
Reciprocating internal combustion engine with a hydraulic adjusting mechanism Download PDFInfo
- Publication number
- DE102017122941A1 DE102017122941A1 DE102017122941.8A DE102017122941A DE102017122941A1 DE 102017122941 A1 DE102017122941 A1 DE 102017122941A1 DE 102017122941 A DE102017122941 A DE 102017122941A DE 102017122941 A1 DE102017122941 A1 DE 102017122941A1
- Authority
- DE
- Germany
- Prior art keywords
- fluid
- adjusting mechanism
- connecting rod
- combustion engine
- internal combustion
- 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.)
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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
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/06—Adjustable connecting-rods
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other
Abstract
Die Erfindung betrifft eine Hubkolbenbrennkraftmaschine mit einem hydraulischen Verstellmechanismus. Die Hubkolbenbrennkraftmaschine (201) umfasst einen hydraulischen Verstellmechanismus (202), der einem Pleuel (203) zugeordnet ist und der zumindest einen in einem Pleuellagerauge (204) oder in einem Hublagerauge (205) eines Pleuels angeordneten Exzenter (206) zum Einstellen von mindestens einem variablen Verdichtungsverhältnis in mindestens einem Zylinder der Hubkolbenbrennkraftmaschine (201) über eine Änderung einer effektiven Länge leff des Pleuels (203) mittels des Verstellmechanismus (202) umfasst, wobei der Verstellmechanismus (202) einen ersten Hydraulikzylinder (208) mit einem ersten Kolben (209) in einer ersten Fluidkammer (210) und einen zweiten Hydraulikzylinder (211) mit einem zweiten Kolben (212) in einer zweiten Fluidkammer (213) umfasst, und die Hydraulikzylinder mit einem Fluid (214) betrieben werden und eine Einstellung von mindestens dem einen variablen Verdichtungsverhältnis mittels einer Bewegung von mindestens dem ersten Kolben (209) in dem ersten Hydraulikzylinder (208) erfolgt, wobei die erste und die zweite Fluidkammer mit einer Fluidleitung (215) des Verstellmechanismus für ein Hin- oder Herströmen des Fluids (214) zwischen der ersten und der zweiten Fluidkammer während der Bewegung des ersten Kolbens (209) im ersten Hydraulikzylinder (208) verbunden sind, und der Pleuel eine Ölsteigleitung (226) aufweist, wobei die Ölsteigleitung mit der erstem Fluidleitung verbunden ist, um Fluid aus der Ölsteigleitung dem Verstellmechanismus zuzuführen und/oder dem Verstellmechanismus zu entnehmen.The invention relates to a reciprocating internal combustion engine with a hydraulic adjusting mechanism. The reciprocating internal combustion engine (201) comprises a hydraulic adjusting mechanism (202) which is associated with a connecting rod (203) and which has at least one eccentric (206) arranged in a connecting-rod bearing eye (204) or in a crank bearing eye (205) of a connecting rod for adjusting at least one variable compression ratio in at least one cylinder of the reciprocating internal combustion engine (201) via a change in an effective length leff of the connecting rod (203) by means of the adjusting mechanism (202), wherein the adjusting mechanism (202) comprises a first hydraulic cylinder (208) with a first piston (209) in a first fluid chamber (210) and a second hydraulic cylinder (211) with a second piston (212) in a second fluid chamber (213), and the hydraulic cylinders are operated with a fluid (214) and an adjustment of at least the one variable compression ratio by means of a movement of at least the first piston (209) in the first Hydraulikzyl The first and second fluid chambers are provided with a fluid line (215) of the fluid flow adjustment mechanism (214) between the first and second fluid chambers during movement of the first piston (209) in the first Hydraulic cylinder (208) are connected, and the connecting rod an oil riser (226), wherein the oil riser is connected to the first fluid line to supply fluid from the oil riser to the adjusting mechanism and / or remove the adjustment mechanism.
Description
Die Erfindung betrifft eine Hubkolbenbrennkraftmaschine mit einem hydraulischen Verstellmechanismus. The invention relates to a reciprocating internal combustion engine with a hydraulic adjusting mechanism.
Aus der
Die erfindungsgemäße Hubkolbenbrennkraftmaschine umfasst einen hydraulischen Verstellmechanismus, der einem Pleuel zugeordnet ist und der zumindest einen in einem Pleuellagerauge oder in einem Hublagerauge eines Pleuels angeordneten Exzenter zum Einstellen von mindestens einem variablen Verdichtungsverhältnis in mindestens einem Zylinder der Hubkolbenbrennkraftmaschine über eine Änderung einer effektiven Länge leff des Pleuels mittels des Verstellmechanismus umfasst, wobei der Verstellmechanismus einen ersten Hydraulikzylinder mit einem ersten Kolben in einer ersten Fluidkammer und einen zweiten Hydraulikzylinder mit einem zweiten Kolben in einer zweiten Fluidkammer umfasst, und die Hydraulikzylinder mit einem Fluid betrieben werden und eine Einstellung von mindestens dem einen variablen Verdichtungsverhältnis mittels einer Bewegung von mindestens dem ersten Kolben in dem ersten Hydraulikzylinder erfolgt, wobei die erste und die zweite Fluidkammer mit einer Fluidleitung des Verstellmechanismus für ein Hin- oder Herströmen des Fluids zwischen der ersten und der zweiten Fluidkammer während der Bewegung des ersten Kolbens im ersten Hydraulikzylinder verbunden sind, und der Pleuel eine Ölsteigleitung aufweist, wobei die Ölsteigleitung mit der erstem Fluidleitung verbunden ist, um Fluid aus der Ölsteigleitung dem Verstellmechanismus zuzuführen und/oder dem Verstellmechanismus zu entnehmen. The reciprocating internal combustion engine according to the invention comprises a hydraulic adjusting mechanism which is associated with a connecting rod and arranged at least one arranged in a connecting rod eye or in a crank eye of a connecting rod eccentric for adjusting at least one variable compression ratio in at least one cylinder of the reciprocating internal combustion engine via a change in an effective length leff of the connecting rod by means of the adjusting mechanism, wherein the adjusting mechanism comprises a first hydraulic cylinder with a first piston in a first fluid chamber and a second hydraulic cylinder with a second piston in a second fluid chamber, and the hydraulic cylinders are operated with a fluid and an adjustment of at least the one variable compression ratio by means of a movement of at least the first piston in the first hydraulic cylinder, wherein the first and the second fluid chamber with a fluid line of the verse and the connecting rod having an oil riser, wherein the oil riser is connected to the first fluid line to remove fluid from the oil riser supply to the adjusting mechanism and / or remove the adjusting mechanism.
Bei dem Fluid handelt es sich vorzugsweise um Öl. The fluid is preferably oil.
Dadurch, dass erfindungsgemäß eine Ölsteigleitung verwendet wird, muss kein zusätzliches Reservoir vorgesehen werden. Der Aufbau des Systems vereinfacht sich. By using an oil riser according to the invention, no additional reservoir needs to be provided. The structure of the system is simplified.
Besonders vorteilhaft ist die Erfindung für sogenannte „Large Bore Engines“, also Motoren, die einen relativ großen Zylinderdurchmesser haben, da bei solchen typtischerweise eine Ölsteigleitung vorgesehen ist, um das Pleuelauge mit Öl zu versorgen. Particularly advantageous is the invention for so-called "Large Bore Engines", ie engines that have a relatively large cylinder diameter, as in such typically an oil riser is provided to supply the connecting rod with oil.
Ein bevorzugtes Ausführungsbeispiel wird anhand der folgenden Figuren näher erläutert. Dabei zeigt A preferred embodiment will be explained in more detail with reference to the following figures. It shows
Der Verstellmechanismus
Der Verstellmechanismus
Das Hydraulikschema
Alternativ kann der Exzenter auch in einem Hublagerauge
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102012020990 A1 [0002, 0011] DE 102012020990 A1 [0002, 0011]
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017122941.8A DE102017122941A1 (en) | 2017-10-04 | 2017-10-04 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
DE102018124158.5A DE102018124158A1 (en) | 2017-10-04 | 2018-10-01 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017122941.8A DE102017122941A1 (en) | 2017-10-04 | 2017-10-04 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017122941A1 true DE102017122941A1 (en) | 2017-11-23 |
Family
ID=60255241
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017122941.8A Withdrawn DE102017122941A1 (en) | 2017-10-04 | 2017-10-04 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
DE102018124158.5A Pending DE102018124158A1 (en) | 2017-10-04 | 2018-10-01 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018124158.5A Pending DE102018124158A1 (en) | 2017-10-04 | 2018-10-01 | Reciprocating internal combustion engine with a hydraulic adjusting mechanism |
Country Status (1)
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DE (2) | DE102017122941A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012020990A1 (en) | 2011-10-27 | 2013-05-02 | Add-On Technology Co:, Ltd | Wireless device for receiving and transmitting an audio signal |
-
2017
- 2017-10-04 DE DE102017122941.8A patent/DE102017122941A1/en not_active Withdrawn
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2018
- 2018-10-01 DE DE102018124158.5A patent/DE102018124158A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012020990A1 (en) | 2011-10-27 | 2013-05-02 | Add-On Technology Co:, Ltd | Wireless device for receiving and transmitting an audio signal |
Also Published As
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DE102018124158A1 (en) | 2019-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R084 | Declaration of willingness to licence | ||
R230 | Request for early publication | ||
R118 | Application deemed withdrawn due to claim for domestic priority |