DE10227769A1 - Compression change arrangement for combustion engine, has control element that can be moved independently of gas charging valve position and that is coaxially arranged to gas charging valve forming valve seat - Google Patents
Compression change arrangement for combustion engine, has control element that can be moved independently of gas charging valve position and that is coaxially arranged to gas charging valve forming valve seat Download PDFInfo
- Publication number
- DE10227769A1 DE10227769A1 DE2002127769 DE10227769A DE10227769A1 DE 10227769 A1 DE10227769 A1 DE 10227769A1 DE 2002127769 DE2002127769 DE 2002127769 DE 10227769 A DE10227769 A DE 10227769A DE 10227769 A1 DE10227769 A1 DE 10227769A1
- Authority
- DE
- Germany
- Prior art keywords
- control
- gas charging
- gas exchange
- combustion engine
- valve
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/032—Electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur variablen Änderung der Verdichtung einer wenigstens einen Brennraum aufweisenden Brennkraftmaschine nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a device to the variable change the compression of an at least one combustion chamber having internal combustion engine after the type defined in the preamble of claim 1 in more detail.
Eine gattungsgemäße Vorrichtung ist aus der
Derartige Anordnungen erzeugen jedoch sehr große Schad- bzw. Toträume innerhalb der Brennräume der Brennkraftmaschine, die nicht für andere Elemente der Brennkraftmaschine, wie z.B. weitere Gaswechselventile, genutzt werden können und darüber hinaus den Ablauf der Verbrennung verschlechtern. Des weiteren ist die Ansteuerung und die Verstellung dieses Steuerelements sehr aufwendig, was dazu geführt hat, dass derartige Vorrichtungen üblicherweise nicht bei Brennkraftmaschinen eingesetzt werden.However, such arrangements generate a lot size Damage or dead spaces inside the combustion chambers the internal combustion engine, not for other elements of the internal combustion engine, such as. additional gas exchange valves, can be used and about that in addition to worsen the combustion process. Furthermore, it is the control and the adjustment of this control very expensive, which led to it has that such devices are not commonly used in internal combustion engines become.
Die
Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung zur Änderung der Verdichtung einer Brennkraftmaschine zu schaffen, mit welcher die Verdichtung variabel, also unabhängig von der Stellung der Gaswechselventile bzw. des Kolbens, geändert werden kann, wobei die Vorrichtung einen möglichst einfachen Aufbau aufweisen und keine nachteiligen Wirkungen für den Betrieb der Brennkraftmaschine mit sich bringen soll.It is an object of the present invention to provide a Device for change the compression of an internal combustion engine to create, with which the compression variable, that is independent of the position of the gas exchange valves or the piston to be changed can, wherein the device have the simplest possible structure and no adverse effects on the operation of the internal combustion engine with should bring.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention this object is achieved by the solved in claim 1 features.
Durch das koaxial zu dem Gaswechselventil angeordnete Steuerelement, dessen Verschiebungsrichtung im wesentlichen der Richtung der Oszillationsbewegung des Gaswechselventils entspricht, kann das Steuerelement unabhängig von der Bewegung des Gaswechselventils verstellt werden, so dass eine variable Änderung der Verdichtung problemlos möglich ist. Mit dem Begriff der gleichen Richtung ist in diesem Fall selbstverständlich auch die Gegenrichtung gemeint, da es sich ja um oszillierende Bewegungen handelt, die durchaus auch entgegengesetzt zueinander sein können.By arranged coaxially with the gas exchange valve Control whose displacement direction substantially the Direction of the oscillation movement of the gas exchange valve corresponds, can the control is independent be adjusted by the movement of the gas exchange valve, so that a variable change the compression problem-free is. With the concept of the same direction in this case is naturally also the Meant opposite direction, since it is indeed oscillating movements act, which can also be opposite to each other.
Der erfindungsgemäße Ventilsitz, den das Steuerelement für das Gaswechselventil bietet, ermöglicht vorteilhafterweise bei einer gemeinsamen Verschiebung des Gaswechselventils und des zugehörigen Steuerelements in jedem Zustand ein normaler Betrieb der Brennkraftmaschine.The valve seat according to the invention, the control for the Gas exchange valve provides, allows advantageously with a common displacement of the gas exchange valve and the associated Control in any state normal operation of the internal combustion engine.
Durch die koaxiale Anordnung des Steuerelements zu. dem Gaswechselventil benötigt das Steuerelement keinerlei Bauraum innerhalb des Brennraums, so dass derselbe im Prinzip nicht verändert wird und sich keine nachteiligen Wirkungen für die Brennkraftmaschine ergeben.Due to the coaxial arrangement of Control too. the gas exchange valve, the control requires no Space within the combustion chamber, so that the same in principle not changed and will not give any adverse effects for the internal combustion engine.
Eine Brennkraftmaschine mit einer erfindungsgemäßen Vorrichtung ist in Anspruch 9 angegeben.An internal combustion engine with a Device according to the invention is specified in claim 9.
Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen sowie aus den nachfolgend an Hand der Zeichnung prinzipmäßig dargestellten Ausführungsbeispielen.Advantageous embodiments and Further developments of the invention will become apparent from the dependent claims and from the below in principle with reference to the drawing Embodiments.
Dabei zeigen:
-
1 eine erste Ausführungsform der erfindungsgemäßen Vorrichtung; -
2 eine zweite Ausführungsform der erfindungsgemäßen Vorrichtung; -
3 die erfindungsgemäße Vorrichtung mit einer Antriebseinrichtung für das Steuerelement in einer ersten Ausführungsform; -
4 die erfindungsgemäße Vorrichtung mit einer Antriebseinrichtung für das Steuerelement in einer zweiten Ausführungsform; und -
5 die erfindungsgemäße Vorrichtung mit einer Antriebseinrichtung für das Steuerelement in einer dritten Ausführungsform.
-
1 a first embodiment of the device according to the invention; -
2 a second embodiment of the device according to the invention; -
3 the device according to the invention with a drive device for the control in a first embodiment; -
4 the device according to the invention with a drive device for the control in a second embodiment; and -
5 the device according to the invention with a drive device for the control in a third embodiment.
Wenn sich der Kolben
Innerhalb des Zylinderkopfes
Hierzu weist die Vorrichtung
In an sich bekannter Weise führt das
Einlaßventil
Um die Verdichtung ε ändern zu
können, kann
das Steuerelement
Eine Verringerung der Verdichtung ε kann beispielsweise
erwünscht
sein, um den Startvorgang der Brennkraftmaschine
Wird zum Erhöhen oder Verringern der Verdichtung ε das Steuerelement
Bei der Ausführungsform der Vorrichtung
Gleiches gilt auch für die Ausführungsform der
Vorrichtung
Eine mechanische Ausführungsform
der Antriebseinrichtung
Um die axiale Verschiebung des Steuerelements
Um die Strömung innerhalb des Einlaßkanals
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002127769 DE10227769A1 (en) | 2002-06-21 | 2002-06-21 | Compression change arrangement for combustion engine, has control element that can be moved independently of gas charging valve position and that is coaxially arranged to gas charging valve forming valve seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002127769 DE10227769A1 (en) | 2002-06-21 | 2002-06-21 | Compression change arrangement for combustion engine, has control element that can be moved independently of gas charging valve position and that is coaxially arranged to gas charging valve forming valve seat |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10227769A1 true DE10227769A1 (en) | 2004-01-08 |
Family
ID=29719334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002127769 Withdrawn DE10227769A1 (en) | 2002-06-21 | 2002-06-21 | Compression change arrangement for combustion engine, has control element that can be moved independently of gas charging valve position and that is coaxially arranged to gas charging valve forming valve seat |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10227769A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2336521A1 (en) * | 2009-12-15 | 2011-06-22 | Wärtsilä Schweiz AG | A cylinder arrangement for an internal combustion engine |
DE102011008128B4 (en) * | 2011-01-07 | 2017-10-26 | Suheyla Lemouré | Reciprocating internal combustion engine with variable compression ratio |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890585A (en) * | 1988-11-28 | 1990-01-02 | General Electric Company | Internal combustion engine with valve |
US4905635A (en) * | 1988-02-23 | 1990-03-06 | Jorma Pohjola | Valve gear for internal combustion engine |
DE19642469C1 (en) * | 1996-10-15 | 1998-05-07 | Bayerische Motoren Werke Ag | Valve-controlled internal combustion engine with an adjustment device for changing the compression |
-
2002
- 2002-06-21 DE DE2002127769 patent/DE10227769A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4905635A (en) * | 1988-02-23 | 1990-03-06 | Jorma Pohjola | Valve gear for internal combustion engine |
US4890585A (en) * | 1988-11-28 | 1990-01-02 | General Electric Company | Internal combustion engine with valve |
DE19642469C1 (en) * | 1996-10-15 | 1998-05-07 | Bayerische Motoren Werke Ag | Valve-controlled internal combustion engine with an adjustment device for changing the compression |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2336521A1 (en) * | 2009-12-15 | 2011-06-22 | Wärtsilä Schweiz AG | A cylinder arrangement for an internal combustion engine |
DE102011008128B4 (en) * | 2011-01-07 | 2017-10-26 | Suheyla Lemouré | Reciprocating internal combustion engine with variable compression ratio |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licenses paragraph 23 | ||
8141 | Disposal/no request for examination |