WO2015104499A1 - Moteur a explosion comportant des augets de graissage des cames - Google Patents
Moteur a explosion comportant des augets de graissage des cames Download PDFInfo
- Publication number
- WO2015104499A1 WO2015104499A1 PCT/FR2015/050030 FR2015050030W WO2015104499A1 WO 2015104499 A1 WO2015104499 A1 WO 2015104499A1 FR 2015050030 W FR2015050030 W FR 2015050030W WO 2015104499 A1 WO2015104499 A1 WO 2015104499A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cam
- bucket
- combustion engine
- cylinder head
- cylinder
- Prior art date
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
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/101—Lubrication of valve gear or auxiliaries of cam surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
-
- 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
- F02B75/005—Other engines having horizontal cylinders
Definitions
- the present invention relates to the field of explosion engines, and more particularly to engines whose cylinders are horizontal or inclined in the horizontal plane.
- the cylinder head is the upper part, most often removable, a reciprocating piston engine. She closes the top of the cylinders. On some engines, the intake and exhaust valves are housed. Its shape and characteristics are always closely linked to the evolution of the engines and are more particularly determined according to the type of distribution and the shape of the combustion chamber.
- the Japanese patent application JP 2002 021989 describes an explosion engine whose cylinder head has buckets for lubricating the cams. These buckets are delimited by the breech and the cylinder head cover.
- DE 102008014828 discloses a flat motor comprising a grease return system.
- the cam is greased by projection or bubbling.
- the problem of the prior art is that during the start and the first cam, the cam comes into contact with the pusher before being properly greased. This problem is particularly important for engines with a cylinder head that is horizontal or inclined below the horizontal plane (“head down").
- the present invention relates, according to its most general meaning, to an explosion engine comprising at least one yoke inclined with respect to a horizontal plane and a distribution system by a camshaft in the yoke greased by a system.
- greasing device characterized in that the lubrication of each cam is made by a bucket placed under the cam to form a local tank in which a portion of the cam is immersed, the volume of said bucket being determined by two lateral faces, and a bottom, and whose edge of at least one of the lateral faces determines a level ensuring that the top of the cam plunges.
- each bucket is bordered laterally by two complementary lateral edges respectively forming an angle of -X ° and + X ° corresponding to the inclination of a cylinder of the engine, X corresponding to the angle inclination of the cylinder head.
- the engine is a two-cylinder engine comprising two opposite identical yokes, the axis of the cylinders forming an angle of -X ° and + X ° respectively with respect to a horizontal plane and in that said buckets are formed of two parts extending respectively half a bearing and the cylinder head, each bucket being bordered laterally by two complementary lateral edges respectively forming an angle of -X ° and + X °.
- the engine comprises two opposite identical yokes and in that said buckets are formed of two parts respectively extending the half-bearing and the yoke.
- bucket in the sense of this patent means a shell whose volume is determined by two lateral faces whose spacing is between 1.1 and 3 times the thickness of the cam, and a bottom, and whose edge at least one of the lateral faces determines a level ensuring that the top of the cam is immersed in the volume thus determined.
- the position of the bucket relative to the cam is determined to ensure lubrication of the top of the cam without the base diameter of the cam enters the oil contained in the bucket.
- the rolls have an inclination of 25 °.
- each bucket is formed of two complementary parts.
- each bucket is bordered laterally by two segments forming respectively an angle of -X ° and + X ° corresponding to the inclination of the cylinder, X corresponding to the angle of inclination of the cylinder, between 0 and 45 °.
- FIG. 1 represents a three-quarter front view of a cylinder head without a cylinder head cover
- FIG. 2 and 3 show detailed views in profile of the buckets respectively of the front yoke and the rear cylinder head of a twin cylinder engine inclined in the longitudinal direction.
- the invention is described with reference to a flat two-cylinder engine having an inclination of 25 °, in the longitudinal direction of the vehicle, in this case a motorcycle.
- the front cylinder is inclined at -25 °, its head down, and the rear cylinder is inclined + 25 °, its head up.
- the two yokes (1, 2) are strictly identical and simply returned, and not symmetrical with respect to the transverse median plane. This reduces the number of parts.
- the distribution is ensured by an intake camshaft (3) and an exhaust camshaft (4) controlling the cams (5, 6, 7, 8) actuating pushers (9, 10; 11, 12) in known manner.
- cam shafts are guided in rotation by bearings formed by semi-cylindrical recesses formed on the cylinder head and complementary semi-cylindrical recesses formed on the upper half-bearing (13).
- the half-bearing (13) is constituted by a foundry piece matched with the cylinder head (1) and machined simultaneously. Its positioning is ensured by cylindrical centering sleeves.
- the half-bearing (13) is fixed on the cylinder head by screws (14 to 22).
- the half-bearing (13) further comprises in its center a borehole (23) to allow access to the candle. It comprises a fixing zone (24) for fixing a chain shoe.
- Each bucket (25 to 28) is formed of two complementary parts. Each bucket (25 to 28) is laterally bordered by two segments respectively forming an angle of -25 ° and + 25 ° corresponding to the inclination of the cylinder.
- the angle of 25 ° is mentioned by way of example, but does not constitute a limitation.
- the inclination can go up to 45 ° and be at least 0 °, for horizontal cylinders.
- One of said portions of the bucket is constituted by an extension of the half-bearing (13), the other of said parts of 1 bucket is constituted by an extension of the yoke (1).
- the lateral edge of the part prolonging the half-bearing forms an angle of 25 °;
- the lateral edge of the part extending the bolt forms an angle of -25 °.
- This configuration makes the cylinder heads completely identical while ensuring that the lubrication adjustment is correct for both the cams in the cylinder head and for the cams in the cylinder head. low. In one case, it will be one of the side edges that will adjust the height of the oil level, and in the other case it will be the additional side edge that will adjust the height of the oil level. oil, as shown in Figures 2 and 3.
- the oil level (32, 33) of the front yoke (1) is adjusted by the edge (34, 35) corresponding to the portion of the bucket extending the half-bearing (13). In the complementary part, the oil is retained by the side of the bucket.
- the oil level (36, 37) of the rear yoke is adjusted by the edge (38, 39) corresponding to the portion of the trough extending the cylinder head (2).
- the oil is retained by the side of the bucket, on the part extending the half-bearing.
- the position of the bucket relative to the cam is determined to ensure lubrication of the top (30) of the cam without the base diameter (31) of the cam enters the oil contained in the bucket.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201580008799.1A CN106030055A (zh) | 2014-01-13 | 2015-01-08 | 包括凸轮润滑槽的内燃机 |
EP15702536.2A EP3094832B1 (fr) | 2014-01-13 | 2015-01-08 | Moteur à explosion comportant des augets de graissage des cames |
JP2016563267A JP6484837B2 (ja) | 2014-01-13 | 2015-01-08 | カム潤滑槽を備えた内燃機関 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1450242A FR3016409B1 (fr) | 2014-01-13 | 2014-01-13 | Moteur a explosion comprenant des augets de graissage des cames |
FR1450242 | 2014-01-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015104499A1 true WO2015104499A1 (fr) | 2015-07-16 |
Family
ID=50780638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2015/050030 WO2015104499A1 (fr) | 2014-01-13 | 2015-01-08 | Moteur a explosion comportant des augets de graissage des cames |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3094832B1 (fr) |
JP (1) | JP6484837B2 (fr) |
CN (1) | CN106030055A (fr) |
FR (1) | FR3016409B1 (fr) |
WO (1) | WO2015104499A1 (fr) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2464364A1 (fr) | 1979-09-03 | 1981-03-06 | Yanmar Diesel Engine Co | Moteur a combustion interne |
JPS59226217A (ja) | 1983-06-07 | 1984-12-19 | Honda Motor Co Ltd | 内燃機関における動弁機構の潤滑装置 |
EP0377829A2 (fr) | 1988-12-09 | 1990-07-18 | Yamaha Motor Co., Ltd. | Système de lubrification d'arbre à cames pour moteur à combustion interne |
EP0821144A1 (fr) | 1996-07-26 | 1998-01-28 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Agencement d'une culasse d'un moteur à combustion interne |
JP2002021989A (ja) | 2000-07-05 | 2002-01-23 | Yamaha Motor Co Ltd | 自動二輪車用エンジンの冷却装置 |
DE102008014828A1 (de) | 2008-03-18 | 2009-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brennkraftmaschine |
JP2009270495A (ja) | 2008-05-08 | 2009-11-19 | Yamaha Motor Co Ltd | エンジン及びスクータ型自動二輪車 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04107427U (ja) * | 1991-02-28 | 1992-09-17 | 富士重工業株式会社 | 水平型dohcエンジンのカム潤滑装置 |
JPH04116613U (ja) * | 1991-03-28 | 1992-10-19 | ダイハツ工業株式会社 | エンジンの潤滑装置 |
JP3235159B2 (ja) * | 1992-01-31 | 2001-12-04 | いすゞ自動車株式会社 | V型ohvエンジンの潤滑装置 |
JPH074806U (ja) * | 1993-06-24 | 1995-01-24 | 富士重工業株式会社 | 直動式動弁機構 |
ES2278660T3 (es) * | 2000-07-05 | 2007-08-16 | Yamaha Hatsudoki Kabushiki Kaisha | Una motocicleta, especialmente una motocicleta tipo scooter. |
CN202970848U (zh) * | 2012-12-10 | 2013-06-05 | 李斯特技术中心(上海)有限公司 | 防止凸轮轴及配气机构润滑油飞溅到油气分离器的挡油板 |
-
2014
- 2014-01-13 FR FR1450242A patent/FR3016409B1/fr not_active Expired - Fee Related
-
2015
- 2015-01-08 WO PCT/FR2015/050030 patent/WO2015104499A1/fr active Application Filing
- 2015-01-08 CN CN201580008799.1A patent/CN106030055A/zh active Pending
- 2015-01-08 EP EP15702536.2A patent/EP3094832B1/fr active Active
- 2015-01-08 JP JP2016563267A patent/JP6484837B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2464364A1 (fr) | 1979-09-03 | 1981-03-06 | Yanmar Diesel Engine Co | Moteur a combustion interne |
JPS59226217A (ja) | 1983-06-07 | 1984-12-19 | Honda Motor Co Ltd | 内燃機関における動弁機構の潤滑装置 |
EP0377829A2 (fr) | 1988-12-09 | 1990-07-18 | Yamaha Motor Co., Ltd. | Système de lubrification d'arbre à cames pour moteur à combustion interne |
EP0821144A1 (fr) | 1996-07-26 | 1998-01-28 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Agencement d'une culasse d'un moteur à combustion interne |
JP2002021989A (ja) | 2000-07-05 | 2002-01-23 | Yamaha Motor Co Ltd | 自動二輪車用エンジンの冷却装置 |
DE102008014828A1 (de) | 2008-03-18 | 2009-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Brennkraftmaschine |
JP2009270495A (ja) | 2008-05-08 | 2009-11-19 | Yamaha Motor Co Ltd | エンジン及びスクータ型自動二輪車 |
Also Published As
Publication number | Publication date |
---|---|
FR3016409A1 (fr) | 2015-07-17 |
EP3094832A1 (fr) | 2016-11-23 |
EP3094832B1 (fr) | 2017-11-29 |
JP6484837B2 (ja) | 2019-03-20 |
FR3016409B1 (fr) | 2018-11-16 |
CN106030055A (zh) | 2016-10-12 |
JP2017502212A (ja) | 2017-01-19 |
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