DE102008007283A1 - Internal combustion engine for motor vehicle, has rotor axially and radially position-fixedly connected with cam shaft, and stator axially and radially limited shiftably connected with internal-combustion engine housings - Google Patents
Internal combustion engine for motor vehicle, has rotor axially and radially position-fixedly connected with cam shaft, and stator axially and radially limited shiftably connected with internal-combustion engine housings Download PDFInfo
- Publication number
- DE102008007283A1 DE102008007283A1 DE102008007283A DE102008007283A DE102008007283A1 DE 102008007283 A1 DE102008007283 A1 DE 102008007283A1 DE 102008007283 A DE102008007283 A DE 102008007283A DE 102008007283 A DE102008007283 A DE 102008007283A DE 102008007283 A1 DE102008007283 A1 DE 102008007283A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- combustion engine
- camshaft
- internal combustion
- stator
- 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- Withdrawn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
- 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
- F01L2001/0475—Hollow camshafts
-
- 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
- F01L2301/00—Using particular materials
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Die Erfindung betrifft eine Kraftfahrzeug-Brennkraftmaschine mit einem Brennkraftmaschinengehäuse, wenigstens einer Nockenwelle sowie einer nockenwellengetriebene Pumpe, wobei die Pumpe einen mit der Nockenwelle verbundenen Rotor und einen brennkraftmaschinengehäusefesten Stator umfasst.The The invention relates to a motor vehicle internal combustion engine with a Internal combustion engine housing, at least one camshaft and a camshaft driven pump, the pump has a Rotor connected to the camshaft and a stator fixed to the engine housing includes.
Eine
derartige Anordnung einer Pumpe an einer Brennkraftmaschine ist
beispielsweise aus der
Indem so sowohl an der Nockenwelle als auch an der Unterdruckpumpe Kupplungselemente erforderlich sind, muss die Nockenwelle kupplungsseitig bearbeitet werden, Kupplungsbauteile sowie eine Verliersicherung für die Kupplung sind notwendig, Bauteile der Unterdruckpumpe sind zu bearbeiten und gegebenenfalls zu härten, es wird in axialer Richtung Bauraum beansprucht, was sich unmittelbar auf die Baulänge der Brennkraftmaschine auswirkt und es besteht ein Verschleißrisiko der Kupplung. Die direkte Positionierung der Unterdruckpumpe am Zylinderkopf erfordert hinsichtlich der Abdichtung zwischen Unterdruckpumpe und Zylinderkopf eine besondere Steifigkeit der Unterdruckpumpe, was eine Gewichtserhöhung mit sich bringt. Aufgrund des Zentrierdurchmessers der konventionellen Unterdruckpumpe ist die Gestaltungsfreiheit bei den Austrittskanälen eingeschränkt, Form und Führung hinsichtlich Leistungsaufnahme sind nicht optimierbar. Nicht zuletzt ist die Zugänglichkeit nicht optimal, da eine Montage der Unterdruckpumpe üblicherweise durch Einstecken und Verschraubung von hinten erfolgt.By doing so required on both the camshaft and the vacuum pump coupling elements are, the camshaft must be machined on the clutch side, clutch components as well as a captive securing device for the coupling are necessary Components of the vacuum pump are to be processed and if necessary to harden, it is claimed in the axial direction of space, which directly affects the overall length of the internal combustion engine affects and there is a risk of wear of the clutch. The direct positioning of the vacuum pump on the cylinder head requires in terms of sealing between vacuum pump and cylinder head one special rigidity of the vacuum pump, which increases the weight brings with it. Due to the centering diameter of the conventional Vacuum pump is the design freedom in the outlet channels limited, shape and guidance in terms of power consumption are not optimizable. Last but not least is the accessibility not optimal, as a mounting of the vacuum pump usually by plugging and screwing done from the back.
Aufgabe der Erfindung ist es, eine eingangs genannte Kraftfahrzeug-Brennkraftmaschine bereitzustellen, mit der die erwähnten Nachteile vermeiden werden.task The invention is an initially mentioned motor vehicle internal combustion engine to provide, with which the mentioned disadvantages will be avoided.
Die Lösung der Aufgabe erfolgt mit einer Kraftfahrzeug-Brennkraftmaschine mit den Merkmalen des Anspruchs 1, wobei der Rotor der Pumpe mit der Nockenwelle axial und radial lagefest und der Stator der Pumpe mit dem Brennkraftmaschinengehäuse drehfest, jedoch axial und radial begrenzt verlagerbar verbunden ist. Auf diese Weise erfolgt ein Ausgleich axialer, radialer und Winkeltoleranzen nicht zwischen Nockenwelle und Unterdruckpumpe, sondern zwischen Unterdruckpumpe und Brennkraft maschinengehäuse. Damit können Bauteile, wie Kupplungsschlitz an der Nockenwelle und zusätzliche Kupplungsbauteile entfallen und die Baulänge der Brennkraftmaschine wird reduziert. Es besteht kein Verschleißrisiko einer Kupplung, sodass Abhilfemaßnahmen, wie Härten von Kupplungsteilen, entfallen können. Außerdem kann eine Bearbeitung und Abdichtung der Verbindung Unterdruckpumpe-Brennkraftmaschinengehäuse entfallen oder wird stark vereinfacht, eine potentielle Leckagestelle entfällt. Schließlich wird eine Gewichtsreduktion erreicht, indem vermehrt leichtere Werkstoffe, wie Kunststoff, verwendet werden können und Versteifungsmaßnahmen sowie Befestigungsbauteile entfallen können. Ferner werden Montage und Zugänglichkeit vereinfacht.The Solution of the problem is carried out with a motor vehicle internal combustion engine with the features of claim 1, wherein the rotor of the pump with the Camshaft axially and radially stable and the stator of the pump with the internal combustion engine housing rotatably, but axially and is connected radially displaced limited. This is done in this way a compensation of axial, radial and angular tolerances not between Camshaft and vacuum pump, but between vacuum pump and internal combustion engine housing. This allows components, like coupling slot on the camshaft and additional Clutch components omitted and the length of the internal combustion engine is reduced. There is no risk of wear Clutch so take remedial action, such as hardening Of coupling parts, can be omitted. Furthermore can be a machining and sealing the connection vacuum pump-engine housing eliminated or greatly simplified, a potential leak eliminated. Finally, a weight reduction achieved by increasingly lighter materials, such as plastic, used can be and stiffening measures as well Fixing components can be omitted. Furthermore, assembly and accessibility simplified.
Besonders bevorzugte Ausführungen und Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Especially preferred embodiments and developments of the invention are the subject of the dependent claims.
Vorzugsweise ist die Pumpe innerhalb des Brennkraftmaschinengehäuses angeordnet. Dadurch ergibt sich eine besonders reduzierte Baulänge der Brennkraftmaschine und die Pumpe ist in einem geschützten Bereich angeordnet, eventuelle Leckagemengen bleiben innerhalb des Brennkraftmaschinengehäuses.Preferably is the pump inside the engine housing arranged. This results in a particularly reduced length the internal combustion engine and the pump is in a protected Arranged area, possible leakage quantities remain within the Engine housing.
Bei einer Kraftfahrzeug-Brennkraftmaschine, bei der die Nockenwelle mehrere Lagerstellen aufweist, ist es bevorzugt, wenn die Pumpe in Nockenwellenachsrichtung außerhalb der letzten Lagerstelle angeordnet ist. Diese fliegende Lagerung vereinfacht in besonderer Weise Montage und Zugänglichkeit. Insbesondere bei einer gebauten Nockenwelle kann jedoch die Pumpe auch zwischen zwei Nockenwellenlagern angeordnet sein.at a motor vehicle internal combustion engine, wherein the camshaft has multiple bearings, it is preferred if the pump arranged in the camshaft axis outside the last bearing point is. This flying storage simplifies installation in a special way and accessibility. Especially with a built camshaft However, the pump can also be arranged between two camshaft bearings be.
Zweckmäßigerweise weist zur Verbindung mit dem Brennkraftmaschinengehäuse der Stator der Pumpe einen radial vorstehenden stutzenartigen Fortsatz auf, der in einer korrespondierenden Ausnehmung im Brennkraftmaschinengehäuse einsitzt. Alternativ oder zusätzlich erfolgt zweckmäßigerweise bei einer Kraftfahrzeug-Brennkraftmaschine, bei der ein Anschlussstutzen durch das Brennkraftmaschinengehäuse hindurchgeführt ist, eine Verbindung des Stators der Pumpe mit dem Brennkraftmaschinengehäuse mittels dem durch das Brennkraftmaschinengehäuse hindurchgeführten Anschlussstutzen. Damit ist ohne weitere Verbindungselemente auf Platz sparende und einfache Weise eine Verdrehsicherung zwischen Pumpe und Brennkraftmaschinengehäuse erreicht.Conveniently, for connection to the engine housing, the stator of the pump has a radially projecting nozzle-like extension, which is seated in a corresponding recess in the engine housing. Alternatively or additionally, it is expediently carried out in a motor vehicle internal combustion engine, in which a connecting piece is passed through the engine housing, a connection of the stator of the pump with the engine housing by means of the guided through the engine housing connecting piece. This is without further fasteners space-saving and easy way a twist achieved fuse between the pump and the engine housing.
Einer bevorzugten Ausführung der erfindungsgemäßen Kraftfahrzeug-Brennkraftmaschine zufolge ist zwischen dem Stator der Pumpe und dem Brennkraftmaschinengehäuse ein Federelement angeordnet. Damit kann insbesondere das akustische Verhalten verbessert werden, indem die Übertragung und gegebenenfalls eine Verstärkung von betriebsbedingten Schwingungen von der Pumpe auf das Brennkraftmaschinengehäuse verhindert wird. Außerdem wird damit die mechanische Belastung der Pumpe verringert und so deren Lebensdauer erhöht.one preferred embodiment of the invention Motor vehicle internal combustion engine is between the stator the pump and the engine housing, a spring element arranged. This can in particular improve the acoustic behavior be done by the transmission and possibly a reinforcement of operational vibrations from the pump to the engine casing is prevented. In addition, so that the mechanical stress reduces the pump and thus increases their life.
Von besonderem Vorteil ist es, wenn der stutzenartige Fortsatz des Pumpenstators einen Auslasskanal der Pumpe bildet und/oder der Pumpenrotor in seinem Verbindungsbereich mit der Nockenwelle einen Einlasskanal der Pumpe bildet. Dadurch ergibt sich eine besonders kompakte und integrierte Bauweise.From It is particularly advantageous if the nozzle-like extension of the pump stator forms an outlet channel of the pump and / or the pump rotor in its connection area with the camshaft an inlet channel the pump forms. This results in a particularly compact and integrated construction.
Nachfolgend sind besonders zu bevorzugende Ausführungsbeispiele der Erfindung unter Bezugnahme auf Figuren näher erläutert, dabei zeigen schematisch und beispielhaftfollowing are particularly preferable embodiments of Invention explained in more detail with reference to figures, thereby show schematically and by way of example
In
einem Zylinderkopf
Die
Pumpe
Der
Rotor der Pumpe
Die
Pumpe
Die
Verbindung zwischen Pumpe
Die
erfindungsgemäße Kraftfahrzeug-Brennkraftmaschine
ermöglicht eine optimale Umsetzung eine radialen Auslasskanals,
wobei die Form variabel ist, da der Fluidaustritt aufgrund der bevorzugten
Anordnung innerhalb der Zylinderkopfhaube erfolgt. Die Zuführung
einer Leitung
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19961317 C1 [0002] - DE 19961317 C1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007283A DE102008007283A1 (en) | 2008-02-02 | 2008-02-02 | Internal combustion engine for motor vehicle, has rotor axially and radially position-fixedly connected with cam shaft, and stator axially and radially limited shiftably connected with internal-combustion engine housings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007283A DE102008007283A1 (en) | 2008-02-02 | 2008-02-02 | Internal combustion engine for motor vehicle, has rotor axially and radially position-fixedly connected with cam shaft, and stator axially and radially limited shiftably connected with internal-combustion engine housings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008007283A1 true DE102008007283A1 (en) | 2009-08-06 |
Family
ID=40822142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008007283A Withdrawn DE102008007283A1 (en) | 2008-02-02 | 2008-02-02 | Internal combustion engine for motor vehicle, has rotor axially and radially position-fixedly connected with cam shaft, and stator axially and radially limited shiftably connected with internal-combustion engine housings |
Country Status (1)
Country | Link |
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DE (1) | DE102008007283A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011009730A1 (en) | 2011-01-29 | 2012-08-02 | Daimler Ag | Combustion engine for driving motor car, has displacement element arranged within pump housing and limiting pump volumes within housing, and pumping device comprising pump housing that is partial integrally formed with engine housing |
DE102010036232B4 (en) * | 2010-05-17 | 2015-05-13 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Motor assembly with a camshaft with integrated pump |
WO2019002322A1 (en) * | 2017-06-30 | 2019-01-03 | Thyssenkrupp Presta Teccenter Ag | Conveyor and compressor element, hollow shaft, combustion engine, and method for purifying blowby gases |
Citations (15)
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---|---|---|---|---|
GB447016A (en) * | 1934-11-03 | 1936-05-11 | Deckel Friedrich | A combined fuel injection pump and ignition distributor for internal combustion engines |
DE2437946A1 (en) * | 1974-08-07 | 1976-02-26 | Josef Dr Ing Reisacher | PISTON ENGINE WITH REDUCED DRIVING CONSUMPTION, IN PARTICULAR FOR DRIVING PASSENGER CARS |
GB2140083A (en) * | 1983-05-18 | 1984-11-21 | Honda Motor Co Ltd | Driving I.C. engine fuel pump and distributor |
US4562797A (en) * | 1983-08-25 | 1986-01-07 | Sanshin Kogyo Kabushiki Kaisha | Four-cycle engine for marine propulsion device |
US4911119A (en) * | 1987-11-13 | 1990-03-27 | Fuji Jukogyo Kabushiki Kaisha | Oil pump mounting system for internal combustion engines |
DE3921245A1 (en) * | 1989-06-29 | 1991-01-03 | Kloeckner Humboldt Deutz Ag | FUEL PUMP PUMP DESIGNED AS A ROTOR PUMP |
US5215164A (en) * | 1989-04-20 | 1993-06-01 | Sanshin Kogyo Kabushiki Kaisha | Lubricating device for four stroke outboard motor |
US5421298A (en) * | 1994-06-03 | 1995-06-06 | Outboard Marine Corporation | Outboard motor including easy withdrawal and insertion of camshaft and rocker arm support shaft |
US5514015A (en) * | 1993-03-01 | 1996-05-07 | Sanshin Kogyo Kabushiki Kaisha | Breather structure for outboard motor |
US5870991A (en) * | 1997-01-31 | 1999-02-16 | Suzuki Kabushiki Kaisha | Lubricating device for outboard motor |
DE69507239T2 (en) * | 1994-10-03 | 1999-05-27 | Honda Giken Kogyo K.K., Tokio/Tokyo | Vertical machine |
US5964197A (en) * | 1993-11-19 | 1999-10-12 | Honda Giken Kogyo Kabushiki Kaisha | Outboard motor and engine thereof |
DE19961317C1 (en) | 1999-12-18 | 2001-06-28 | Bayerische Motoren Werke Ag | Vacuum pump, in particular vane vacuum pump |
USRE37348E1 (en) * | 1993-11-09 | 2001-09-04 | Yamaha Hatsudoki Kabushiki Kaisha | Vertical engine |
DE19624240C2 (en) * | 1996-06-18 | 2001-12-06 | Daimler Chrysler Ag | Internal combustion engine |
-
2008
- 2008-02-02 DE DE102008007283A patent/DE102008007283A1/en not_active Withdrawn
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB447016A (en) * | 1934-11-03 | 1936-05-11 | Deckel Friedrich | A combined fuel injection pump and ignition distributor for internal combustion engines |
DE2437946A1 (en) * | 1974-08-07 | 1976-02-26 | Josef Dr Ing Reisacher | PISTON ENGINE WITH REDUCED DRIVING CONSUMPTION, IN PARTICULAR FOR DRIVING PASSENGER CARS |
GB2140083A (en) * | 1983-05-18 | 1984-11-21 | Honda Motor Co Ltd | Driving I.C. engine fuel pump and distributor |
US4562797A (en) * | 1983-08-25 | 1986-01-07 | Sanshin Kogyo Kabushiki Kaisha | Four-cycle engine for marine propulsion device |
US4911119A (en) * | 1987-11-13 | 1990-03-27 | Fuji Jukogyo Kabushiki Kaisha | Oil pump mounting system for internal combustion engines |
US5215164A (en) * | 1989-04-20 | 1993-06-01 | Sanshin Kogyo Kabushiki Kaisha | Lubricating device for four stroke outboard motor |
DE3921245A1 (en) * | 1989-06-29 | 1991-01-03 | Kloeckner Humboldt Deutz Ag | FUEL PUMP PUMP DESIGNED AS A ROTOR PUMP |
US5514015A (en) * | 1993-03-01 | 1996-05-07 | Sanshin Kogyo Kabushiki Kaisha | Breather structure for outboard motor |
USRE37348E1 (en) * | 1993-11-09 | 2001-09-04 | Yamaha Hatsudoki Kabushiki Kaisha | Vertical engine |
US5964197A (en) * | 1993-11-19 | 1999-10-12 | Honda Giken Kogyo Kabushiki Kaisha | Outboard motor and engine thereof |
US6213826B1 (en) * | 1993-11-19 | 2001-04-10 | Honda Giken Kogyo Kabushiki Kaisha | Outboard motor, and engine thereof |
US5421298A (en) * | 1994-06-03 | 1995-06-06 | Outboard Marine Corporation | Outboard motor including easy withdrawal and insertion of camshaft and rocker arm support shaft |
DE69507239T2 (en) * | 1994-10-03 | 1999-05-27 | Honda Giken Kogyo K.K., Tokio/Tokyo | Vertical machine |
DE19624240C2 (en) * | 1996-06-18 | 2001-12-06 | Daimler Chrysler Ag | Internal combustion engine |
US5870991A (en) * | 1997-01-31 | 1999-02-16 | Suzuki Kabushiki Kaisha | Lubricating device for outboard motor |
DE19961317C1 (en) | 1999-12-18 | 2001-06-28 | Bayerische Motoren Werke Ag | Vacuum pump, in particular vane vacuum pump |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010036232B4 (en) * | 2010-05-17 | 2015-05-13 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Motor assembly with a camshaft with integrated pump |
DE102011009730A1 (en) | 2011-01-29 | 2012-08-02 | Daimler Ag | Combustion engine for driving motor car, has displacement element arranged within pump housing and limiting pump volumes within housing, and pumping device comprising pump housing that is partial integrally formed with engine housing |
WO2019002322A1 (en) * | 2017-06-30 | 2019-01-03 | Thyssenkrupp Presta Teccenter Ag | Conveyor and compressor element, hollow shaft, combustion engine, and method for purifying blowby gases |
DE102017114646B4 (en) | 2017-06-30 | 2023-08-03 | Thyssenkrupp Ag | Conveyor and compressor element, hollow shaft, internal combustion engine and method for cleaning blow-by gases |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130903 |