WO2003023198A1 - Structure de passage d'huile de lubrification dans un moteur a combustion interne - Google Patents

Structure de passage d'huile de lubrification dans un moteur a combustion interne Download PDF

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Publication number
WO2003023198A1
WO2003023198A1 PCT/JP2002/008677 JP0208677W WO03023198A1 WO 2003023198 A1 WO2003023198 A1 WO 2003023198A1 JP 0208677 W JP0208677 W JP 0208677W WO 03023198 A1 WO03023198 A1 WO 03023198A1
Authority
WO
WIPO (PCT)
Prior art keywords
lubricating oil
jet
oil passage
internal combustion
combustion engine
Prior art date
Application number
PCT/JP2002/008677
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Takashi Ishizaka
Akira Shigihara
Takashi Kaneishi
Original Assignee
Honda Giken Kogyo Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Giken Kogyo Kabushiki Kaisha filed Critical Honda Giken Kogyo Kabushiki Kaisha
Priority to BRPI0205965-7A priority Critical patent/BR0205965B1/pt
Priority to KR10-2004-7002764A priority patent/KR100539602B1/ko
Priority to EP02762893A priority patent/EP1424470B1/en
Publication of WO2003023198A1 publication Critical patent/WO2003023198A1/ja

Links

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 for an internal combustion engine that supplies lubricating oil to a lubricated portion of the internal combustion engine.
  • an internal combustion engine is provided with a lubricating oil passage for supplying pressurized lubricating oil to lubricated parts such as its rotating and sliding parts in order to ensure smooth operation.
  • a throttling passage that is, a jet
  • pressurized lubricating oil flowing through a lubricating oil passage is injected through the jet.
  • the injected lubricating oil is supplied to the back side of the piston, and For lubrication and cooling (for example, see Japanese Patent Application Laid-Open No. 9-199773).
  • the throttle passage provided in the lubricating oil passage may reach and block the inlet of the jet, in which case there is a problem that the amount of the lubricating oil injected from the jet and the injection pressure are reduced. .
  • the present invention has been made in view of the above circumstances, and has as its object to provide a novel lubricating oil passage structure for an internal combustion engine, in which the foreign matter does not block the inlet side of the jet.
  • the present invention provides a jet in a proper position of a lubricating oil passage connected to an oil pump, and injects pressurized lubricating oil flowing through the lubricating oil passage toward a lubricated portion through a jet.
  • a jet in a proper position of a lubricating oil passage connected to an oil pump, and injects pressurized lubricating oil flowing through the lubricating oil passage toward a lubricated portion through a jet.
  • An oil groove that opens to the lubricating oil passage and extends radially from the center of the jet is provided on the inlet side of the jet so as to communicate with the jet.
  • the entrance side of the lubricating oil is prevented from being blocked by foreign matter such as dust and chips mixed in the lubricating oil. Can be injected.
  • the oil groove is characterized in that it is a cross groove extending radially around the jet, and according to such a feature, the inlet side of the jet is in the lubricating oil. It is more reliably prevented from being blocked by foreign matter such as dust and chips, and lubricating oil of a proper amount and a proper pressure can always be jetted from the jet.
  • FIG. 1 is a cross-sectional view of a main part of an internal combustion engine provided with the lubricating oil passage structure of the present invention
  • FIG. 2 is an enlarged view of a virtual circled portion taken along a line 2 in FIG. 1
  • FIG. 3 is a line 3 in FIG. FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • an engine body E of a four-stroke internal combustion engine is connected to a cylinder block 1 provided with cylinder pores 2 and a cylinder fixed on a deck surface of the cylinder block 1 and forming a combustion chamber 4 facing the cylinder pores 2.
  • a crankshaft 7 is rotatably supported in a crankcase 5 via a pole bearing 8.
  • a large end of a connecting rod 10 is attached to a crankpin 7 a of the crankshaft 7 by a needle bearing 1.
  • the small end of the connecting rod 10 is rotatably connected to a piston pin 13 of a piston 12 which is slidably fitted in a cylinder bore 2.
  • the engine body E is provided with a lubrication system L for lubricating each movable part.
  • the lubrication system L has a conventionally known configuration, and the lower end of a suction passage 16 connected to the suction port of an oil pump 15 connected to the lubrication system L has a lubrication system stored in an oil pan 6. Connected to oil strainer 17 immersed in oil. Further, a discharge passage 18 connected to the discharge port of the oil pump 15 is communicated with a main gallery 21 formed in the cylinder block 1 as a lubricating oil passage. In the middle of the main gallery 21, a piston lubricating oil passage 24 formed in the crankcase 5 is communicated.
  • a wall 24 a facing the cylinder pore 2 is provided with a jet 2. 5 is opened, the inlet of the jet 25 is communicated with the lubricant passage 24 for the piston, and the injection outlet is directed toward the back side of the piston 12 in the cylinder bore 2.
  • an oil groove 26 is provided at the inlet side of the jet 25 in communication with the inlet side of the jet 25.
  • 26 extends in a cross shape in the radial direction around the jet 25, and the side of the cross-shaped oil groove 26 facing the lubricating oil passage 24 for the piston is:
  • the piston lubricating oil passage 24 is open over substantially the entire area thereof.
  • reference numeral 28 denotes a lubricating oil passage formed in the crankshaft 7
  • 29 denotes a timing transmission that operates a valve mechanism (not shown) in conjunction with the crankshaft 7
  • 30 denotes an oil pump.
  • the driving gear, 31, is a clutch driving gear connected to the transmission.
  • a part of the pressurized lubricating oil flowing in the main gear 21 is supplied to the lubricating oil passage 24 for the piston.
  • the lubricating oil that has reached the passage 24 is jetted from the jet 25 directed to the back side of the piston 12 as shown by the arrow a in FIGS. 1 and 2 and supplied to the back side of the piston 12. This lubricates the inner wall surfaces of the piston 12 and the cylinder pore 2 and cools them.
  • the lubricating oil flowing through the main gallery 21 is filtered by the oil strainer 17, but a part of the foreign matter R such as fine dust and chips is not filtered, and the lubricating oil flows from the main gallery 21 to the piston.
  • the foreign matter R may block the central portion of the small-diameter jet 25 on the inlet side as shown by the phantom line in FIG. 2.
  • a cross-shaped oil groove 26 that communicates with the inlet side of the jet 25 and that opens to the piston lubricating oil passage 24 side has a diameter.
  • the pressurized lubricating oil in the piston lubricating oil passage 24 passes through the cross-shaped oil groove 26 to the jet 25 as shown by a virtual arrow b in FIG.
  • the oil passage provided on the inlet side of the jet 25 has four oil grooves 26 radially formed from the center of the jet 25 in a cross shape. One to three, or five or more oil grooves may be formed in the radial direction from the center of the jet 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
PCT/JP2002/008677 2001-09-04 2002-08-28 Structure de passage d'huile de lubrification dans un moteur a combustion interne WO2003023198A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BRPI0205965-7A BR0205965B1 (pt) 2001-09-04 2002-08-28 estrutura para passagem de óleo lubrificante em motor de combustão interna.
KR10-2004-7002764A KR100539602B1 (ko) 2001-09-04 2002-08-28 내연기관의 윤활유 통로구조
EP02762893A EP1424470B1 (en) 2001-09-04 2002-08-28 Lubrication oil passage structure of internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-267586 2001-09-04
JP2001267586A JP4537629B2 (ja) 2001-09-04 2001-09-04 内燃機関の潤滑油通路構造

Publications (1)

Publication Number Publication Date
WO2003023198A1 true WO2003023198A1 (fr) 2003-03-20

Family

ID=19093697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/008677 WO2003023198A1 (fr) 2001-09-04 2002-08-28 Structure de passage d'huile de lubrification dans un moteur a combustion interne

Country Status (9)

Country Link
EP (1) EP1424470B1 (zh)
JP (1) JP4537629B2 (zh)
KR (1) KR100539602B1 (zh)
CN (1) CN1277044C (zh)
AR (1) AR036397A1 (zh)
BR (1) BR0205965B1 (zh)
ES (1) ES2302837T3 (zh)
MY (1) MY129090A (zh)
WO (1) WO2003023198A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52168136U (zh) * 1976-06-14 1977-12-20
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54164328U (zh) * 1978-05-11 1979-11-17
JPH01103727U (zh) * 1987-12-28 1989-07-13
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52168136U (zh) * 1976-06-14 1977-12-20
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1424470A4 *

Also Published As

Publication number Publication date
JP2003074322A (ja) 2003-03-12
BR0205965A (pt) 2003-10-07
EP1424470A4 (en) 2007-02-14
MY129090A (en) 2007-03-30
ES2302837T3 (es) 2008-08-01
KR20040029035A (ko) 2004-04-03
CN1549889A (zh) 2004-11-24
EP1424470A1 (en) 2004-06-02
JP4537629B2 (ja) 2010-09-01
AR036397A1 (es) 2004-09-08
BR0205965B1 (pt) 2011-03-09
CN1277044C (zh) 2006-09-27
EP1424470B1 (en) 2008-03-19
KR100539602B1 (ko) 2005-12-28

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