EP1424470B1 - Schmierölkanalkonstruktion für verbrennungsmotor - Google Patents
Schmierölkanalkonstruktion für verbrennungsmotor Download PDFInfo
- Publication number
- EP1424470B1 EP1424470B1 EP02762893A EP02762893A EP1424470B1 EP 1424470 B1 EP1424470 B1 EP 1424470B1 EP 02762893 A EP02762893 A EP 02762893A EP 02762893 A EP02762893 A EP 02762893A EP 1424470 B1 EP1424470 B1 EP 1424470B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricating oil
- jet
- oil passage
- internal combustion
- combustion engine
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/083—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating cylinders
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
Definitions
- the present invention relates to a lubricating oil passage structure in an internal combustion engine for supplying a lubricating oil to portions to be lubricated in the internal combustion engine.
- a lubricating oil passage for supplying a pressurized lubricating oil to portions to be lubricated such as rotating and sliding portions of the internal combustion engine is provided, and a constriction passage, i.e., a jet is provided in place in the lubricating oil passage to communicate with the latter, so that the pressurized lubricating oil flowing in the lubricating oil passage is ejected through the jet, and for example, the ejected lubricating oil is supplied to a back side of a piston to lubricate and cool the piston (for example, see Japanese Patent Application Laid-open No.9-209733 ).
- the present invention has been accomplished with such circumstances in view, and it is an object of the present invention to provide a new lubricating oil passage structure in an internal combustion engine, wherein the inlet of the jet cannot be occluded by the foreign matter.
- a lubricating oil passage structure in an internal combustion engine comprising a jet provided in place in a lubricating oil passage leading to an oil pump, so that a pressurized lubricating oil flowing in the lubricating oil passage is ejected toward portions to be lubricated through the jet, characterized in that oil grooves are provided in an inlet of the jet to communicate with the jet, the oil grooves being opened into the lubricating oil passage and extending diametrically from the center of the jet.
- the inlet of the jet is prevented from being occluded by a foreign matter such as a dust and cuttings incorporated in the lubricating oil, and the lubricating oil can be ejected always in an appropriate amount and under an appropriate pressure from the jet.
- the oil grooves are cross-shaped grooves extending diametrically about the jet.
- an engine body E of a 4-cycle internal combustion engine includes a cylinder block 1 having a cylinder bore 2 provided therein, a cylinder head 3 which is fixed onto a deck surface of the cylinder block 1 and in which a combustion chamber 4 is defined to confront the cylinder bore 2, and a crankcase 5 fixed to a lower surface of the cylinder block 1.
- An oil pan 6 is fixed to a lower surface of the crankcase 5.
- crankshaft 7 is rotatably carried within the crankcase 5 with a ball bearing 8 interposed therebetween, and a connecting rod 10 is rotatably connected at its larger end to a crankpin 7a of the crankshaft 7 through a needle bearing 11 and at its smaller end to a piston pin 13 of a piston 12 slidably received in the cylinder bore 2.
- a lubricating system L is provided in the engine body E for lubricating various portions of the engine body E.
- the lubricating system L is of a conventionally known construction, and a suction passage 16 connected to a suction port of an oil pump 15 connected to the lubricating system L is connected at its lower end to an oil strainer 17 immersed in a lubricating oil stored in the oil pan 6.
- a discharge passage 18 connected to a discharge port of the oil pump 15 communicates with a main gallery 21 defined as a lubricating oil passage in the cylinder block 1.
- a piston-lubricating oil passage 24 defined in the crankcase 5 communicate with an intermediate portion of the main gallery 21, and a jet 25 is opened into a wall 24a of the passage 24, which confronts the cylinder bore 2 and the jet 25 has an inlet communicating with the piston-lubricating oil passage 24 and an ejecting outlet directed toward a back side of the piston 12 within the cylinder bore 2.
- oil grooves 26 are provided at the inlet of the jet 25 to communicate with the inlet of the jet 25, and extend diametrically in a cross-shape about the jet 25, as shown in Fig.3 . Sides of the cross-shaped oil groove 26, which confront the piston-lubricating oil passage 24, are opened into the piston-lubricating oil passage 24 over the substantially entire region of the latter.
- reference character 28 is a lubricating oil passage defined in the crankshaft 7;
- reference character 29 is a timing transmitting device for operating a valve-operating mechanism (not shown) in operative association with the crankshaft 7;
- reference character 30 is a gear for driving the oil pump; and
- reference character 31 is a gear for driving a clutch leading to a transmission.
- a portion of the pressurized lubricating oil flowing in the main gallery 21 is supplied to the piston-lubricating oil passage 24.
- the lubricating oil reaching the passage 24 is ejected from the jet 25 directed to the back side of the piston 12 as shown by an arrow a in Figs.1 and 2 , and is supplied to the back side of the piston 12 to lubricate and cool the piston 12 and an inner wall surface of the cylinder bore 2.
- the lubricating oil flowing in the main gallery 21 is filtered by the oil strainer 17, but a portion of a foreign matter R such as a fine dust and fine cuttings may not be filtered off and may be fed through the main gallery 21 to the piston-lubricating oil passage 24.
- the foreign matter R may occlude a center portion of the inlet of the small-diameter jet 25, as shown by a phantom line in Fig. 2 .
- the pressurized lubricating oil within the piston-lubricating oil passage 24 can be fed under pressure via the oil grooves 26 of the cross shape to the jet 25, as shown by a phantom arrow h in Fig. 2 , and can be ejected from the jet 25 toward the back side of the piston 12.
- the present invention is not limited to the above-described embodiment, and various embodiments may be made within the scope of the invention.
- the four oil grooves 26 are defined in the cross shape diametrically from the center of the jet 25 in the oil passage provided at the inlet of the jet 25 in the above-described embodiment, one to three or five or more oil grooves may be defined diametrically from the center of the jet 25 in place of the four oil grooves.
- the lubricating oil passage structure according to the present invention has been described as being carried out in the jet directed to the back side of the piston in the above-described embodiment, but it is of course that the lubricating oil passage structure can be carried out in another jet provided in a lubricating oil passage.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Claims (2)
- Schmierölkanalstruktur in einem Verbrennungsmotor, umfassend eine Düse (25), welche an einer Stelle in einem Schmierölkanal (21) bereitgestellt ist, der zu einer Ölpumpe (15) führt, so dass unter Druck stehendes Schmieröl, welches in dem Schmierölkanal (21) strömt, zu zu schmierenden Abschnitten hin durch die Düse (25) ausgestoßen wird,
dadurch gekennzeichnet, dass Ölnuten (26) in einem Einlass der Düse (25) bereitgestellt sind, so dass sie mit der Düse (25) in Verbindung stehen, wobei die Ölnuten (26) in den Schmierölkanal (21) geöffnet sind und sich diametral vom Zentrum der Düse (25) erstrecken. - Schmierölkanalstruktur in einem Verbrennungsmotor nach Anspruch 1, wobei die Ölnuten (26) kreuzförmige Nuten sind, welche sich diametral um die Düse (25) herum erstrecken.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001267586 | 2001-09-04 | ||
JP2001267586A JP4537629B2 (ja) | 2001-09-04 | 2001-09-04 | 内燃機関の潤滑油通路構造 |
PCT/JP2002/008677 WO2003023198A1 (fr) | 2001-09-04 | 2002-08-28 | Structure de passage d'huile de lubrification dans un moteur a combustion interne |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1424470A1 EP1424470A1 (de) | 2004-06-02 |
EP1424470A4 EP1424470A4 (de) | 2007-02-14 |
EP1424470B1 true EP1424470B1 (de) | 2008-03-19 |
Family
ID=19093697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02762893A Expired - Fee Related EP1424470B1 (de) | 2001-09-04 | 2002-08-28 | Schmierölkanalkonstruktion für verbrennungsmotor |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1424470B1 (de) |
JP (1) | JP4537629B2 (de) |
KR (1) | KR100539602B1 (de) |
CN (1) | CN1277044C (de) |
AR (1) | AR036397A1 (de) |
BR (1) | BR0205965B1 (de) |
ES (1) | ES2302837T3 (de) |
MY (1) | MY129090A (de) |
WO (1) | WO2003023198A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007058796A1 (de) * | 2007-12-06 | 2009-06-10 | GM Global Technology Operations, Inc., Detroit | Ölkanalanordnung |
CN103104376B (zh) * | 2013-02-06 | 2015-06-10 | 苏州科瓴精密机械科技有限公司 | 发动机的化油器座 |
CN103114943B (zh) * | 2013-02-26 | 2015-08-12 | 苏州科瓴精密机械科技有限公司 | 发动机的化油器座 |
JP6056090B2 (ja) * | 2013-02-28 | 2017-01-11 | 本田技研工業株式会社 | 車両用内燃機関における潤滑油供給構造 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52168136U (de) * | 1976-06-14 | 1977-12-20 | ||
JPS54164328U (de) * | 1978-05-11 | 1979-11-17 | ||
JPH01103727U (de) * | 1987-12-28 | 1989-07-13 | ||
JPH041408A (ja) * | 1990-04-13 | 1992-01-06 | Yanmar Diesel Engine Co Ltd | ガソリン機関の強制注油機構 |
DE4323262A1 (de) * | 1993-07-12 | 1995-01-26 | Fev Motorentech Gmbh & Co Kg | Verfahren und Anordnung für die Schmiermittelversorgung einer Hubkolbenmaschine |
JPH0968042A (ja) * | 1995-08-31 | 1997-03-11 | Suzuki Motor Corp | 4サイクルエンジンのオイル噴射装置 |
JP2000087717A (ja) * | 1998-09-12 | 2000-03-28 | Honda Motor Co Ltd | 4サイクルエンジンのクランク軸廻り構造 |
JP3975064B2 (ja) * | 2001-08-31 | 2007-09-12 | 本田技研工業株式会社 | 多気筒エンジンのピストン冷却装置 |
-
2001
- 2001-09-04 JP JP2001267586A patent/JP4537629B2/ja not_active Expired - Fee Related
-
2002
- 2002-08-28 EP EP02762893A patent/EP1424470B1/de not_active Expired - Fee Related
- 2002-08-28 CN CNB028170547A patent/CN1277044C/zh not_active Expired - Fee Related
- 2002-08-28 KR KR10-2004-7002764A patent/KR100539602B1/ko not_active IP Right Cessation
- 2002-08-28 WO PCT/JP2002/008677 patent/WO2003023198A1/ja active IP Right Grant
- 2002-08-28 BR BRPI0205965-7A patent/BR0205965B1/pt not_active IP Right Cessation
- 2002-08-28 ES ES02762893T patent/ES2302837T3/es not_active Expired - Lifetime
- 2002-08-30 AR ARP020103293A patent/AR036397A1/es active IP Right Grant
- 2002-09-04 MY MYPI20023308A patent/MY129090A/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2302837T3 (es) | 2008-08-01 |
BR0205965A (pt) | 2003-10-07 |
CN1277044C (zh) | 2006-09-27 |
KR100539602B1 (ko) | 2005-12-28 |
AR036397A1 (es) | 2004-09-08 |
KR20040029035A (ko) | 2004-04-03 |
EP1424470A1 (de) | 2004-06-02 |
JP2003074322A (ja) | 2003-03-12 |
CN1549889A (zh) | 2004-11-24 |
BR0205965B1 (pt) | 2011-03-09 |
JP4537629B2 (ja) | 2010-09-01 |
MY129090A (en) | 2007-03-30 |
EP1424470A4 (de) | 2007-02-14 |
WO2003023198A1 (fr) | 2003-03-20 |
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