EP1055803A1 - Vorrichtung für Brennkraftmaschine - Google Patents

Vorrichtung für Brennkraftmaschine Download PDF

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Publication number
EP1055803A1
EP1055803A1 EP00111178A EP00111178A EP1055803A1 EP 1055803 A1 EP1055803 A1 EP 1055803A1 EP 00111178 A EP00111178 A EP 00111178A EP 00111178 A EP00111178 A EP 00111178A EP 1055803 A1 EP1055803 A1 EP 1055803A1
Authority
EP
European Patent Office
Prior art keywords
oil
engine
oil pan
baffle plate
engine device
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.)
Granted
Application number
EP00111178A
Other languages
English (en)
French (fr)
Other versions
EP1055803B1 (de
Inventor
Katsuhiro Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of EP1055803A1 publication Critical patent/EP1055803A1/de
Application granted granted Critical
Publication of EP1055803B1 publication Critical patent/EP1055803B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/005—Oilsumps with special anti-turbulence means, e.g. anti-foaming means or intermediate plates
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/007—Oil pickup tube to oil pump, e.g. strainer

Definitions

  • This invention relates to an engine device comprising an oil pan on the engine body.
  • engine devices equipped in vehicles for example, some of engine devices comprise the oil pan, the oil pan and strainer are separated, and the strainer is fixed on an oil pump and a cylinder block.
  • the object of the present invention maid in view of the situation with the prior art described above is to provide an engine device being capable of intending to improve the assembling ability by unitizing the oil pan, to reduce an affect of air flow caused by the vertical movement of the pistons to the oil surface, and to improve the engine output.
  • the present invention is provided as follows.
  • the invention claimed in Claim 1 as indicated above is characterized in that, a strainer and a baffle plate are integrally fixed to said oil pan, and a connection on an oil piping side disposed in said strainer is configured to be capable of inserting and connecting to a connection on the side of an oil pump disposed on said engine body through a sealing member.
  • fixing integrally to unitize the oil pan with the strainer and the baffle plate enables the strainer assembling recess onto the baffle plate to be unnecessary, affect of air flow caused by the vertical movement of the pistons to the oil surface to be reduced, and the engine performance to be improved at high engine speed region. Also, fixing integrally to utilize the oil pan with the strainer and the baffle plate enables number of assembling man-hour at production line to be reduced, and the assembling ability to be improved.
  • the invention claimed in Claim 2 is that an engine device claimed in Claim 1, characterized in that an assembling recess of said baffle plate is inserted into said oil piping to be fixed on said oil pan.
  • the strainer assembling recess onto the baffle plate can be unnecessary, and affect of air flow caused by the vertical movement of the pistons to the oil surface can be reduced.
  • the invention claimed in Claim 3 is that an engine device claimed in Claim 1 or 2, an inserting recess is formed in said connection on the oil pump side, an inserting protrusion is formed in said connection on the oil piping side, the inserting protrusion is provided with a sealing member and a guiding member, and said inserting protrusion is guided with the guiding member to be inserted into said inserting recess.
  • Fig. 1 is a side view of the front and side part of the vehicle equipped with the engine device;
  • Fig. 2 is a cross-sectional view of the engine device;
  • Fig. 3 is a side view of the engine device illustrated with the engine cover being removed;
  • Fig. 4 is a side view of the oil pan;
  • Fig. 5 is a top plan view of the oil pan;
  • Fig. 6 is a front view of the oil pan;
  • Fig. 7 is a cross-sectional view of the connecting portion.
  • an engine room 3 is disposed in front of the front wheels 2
  • an engine 4 is equipped within the engine room 3
  • a radiator 5 is located in the front side of the engine 4.
  • This engine 4 is 2-cylinder, 4-stroke engine and disposes an oil pan 700 at the bottom of an engine body 6.
  • a crankshaft 7 is disposed within the engine body 6 along the vehicle's width direction, and balancer shafts 8, 9 are disposed in the front and rear side of the crankshaft along the width direction.
  • branch exhaust passages 11, 12 and branch intake passages 13, 14 for each cylinder.
  • the branch exhaust passages 11, 12 are opened and closed by the corresponding exhaust valve 15 disposed in respectively
  • the branch intake passages 13, 14 are opened and closed by the corresponding intake valve 16 disposed in respectively.
  • the exhaust valve 15 and the intake valve 16 are driven by cams 19, 20 disposed on camshafts 17, 18.
  • the branch exhaust passages 11, 12 are collected, and to this collected exhaust passage 21 is connected an exhaust pipe 22.
  • the exhaust pipe 22 connected to each cylinder is collected, and the collected exhaust pipe 23 passes from the front-side of the engine body 6 through the underneath and extends rearward.
  • a catalyst 24 is provided to the exhaust pipe 23.
  • the branch intake passages 13, 14 are collected, and in this collected intake passage 25 is provided a throttle body 26 to the cylinder head 10.
  • the throttle body 26 has an intake passage 28 connecting to the intake passage 25 of each cylinder, and furthermore, an intake manifold 30 is connected to the throttle body 26.
  • an injector 35 is disposed on the cylinder head 10.
  • a throttle valve 40 controlling the flow rate of the respective intake passage 28. This throttle valve 40 is controlled in accordance with information of the engine speed and the throttle openings.
  • the crankshaft 7 is rotatably supported on bearings 50a.
  • a balancer shaft 8 is arranged that one end portion 8a is rotatably supported through a needle bearing 51 and another end portion 8b is rotatably supported through a ball bearing 52.
  • a balancer shaft 9 is also arranged in the same manner that one end portion 9a is rotatably supported through a needle bearing 53 and another end portion 9b is rotatably supported through a ball bearing 52.
  • Each of the balancers 8, 9 is inserted from the end portion 8a, 9a of the opening 50b, 50c of the cylinder block 50 and assembled the ball bearing 52, 54 to the opening 50b, 50c.
  • a gear 55 is provided to the crankshaft 7, and gears 56, 57 are respectively engaged with the gear 55.
  • the balancer shafts 8, 9 are interlocked to rotate by rotating of the crankshaft 7 through the gear mechanisms such as the gear 55 and the gears 56, 57.
  • the ball bearings 52, 54 of the balancer shafts 8, 9 and the gear mechanisms such as the gear 55 and the gears 56, 57 can be assembled from the same side, so that assembly may be made easily.
  • One side of the cylinder block is covered with the engine cover 58, 50 that the engine cover 58 forms a cam chain chamber 59.
  • a cam gear 60 is disposed on the crankshaft 7, and a cam chain 61 is filled over between the cam gear 60 and a gear disposed on the camshafts 17, 18 (not shown).
  • the camshafts 17, 18 are interlocked to rotate by rotating of the crankshaft 7 through the cam chain 61, and the exhaust valve 15 and the intake valve 16 are opened and closed with the predetermined timing.
  • An end portion 7a of the crankshaft 7 is protruded from an opening 58a of the engine cover 58, and a driving pulley 62 is mounted on the protruding end portion 7a with a locking bolt 63. Between a shaft 62a of the driving pulley 62 and the opening 58a is sealed with sealing member 64.
  • a driving belt 66 is fitted over between the driving pulley 62 and a steering pump 65 disposed on the front side of the engine, and a driving belt 68 is fitted over between the driving pulley 62 and an alternator 67 disposed on the rear side of the engine.
  • An oil pump 70 and a water pump 80 are integrally incorporated in the engine cover 58. That is to say, the oil pump 70 is integrally formed so that the pump housing 71 is one part of the engine cover 58, and to assemble the pump housing 71 with a cover housing 72 forms a pump chamber 73.
  • a pump shaft 75 with blades 74 is rotatably supported between the pump housing 71 and the cover housing 72.
  • An engaging protrusion 75a is formed on a tip of the pump shaft 75.
  • An engaging recess 8c is formed on a tip of the balancer shaft 8 positioned opposite to the pump shaft 75.
  • the engaging protrusion 75a of the pump shaft 75 is engaged with the engaging recess 8c of the balancer shaft 8, and the balancer shaft 8 and the pump shaft 75 are coupled integrally and rotatably. Oil is supplied to each part of the engine 4 by rotating of the pump shaft 75.
  • a water pump 80 is also formed integrally so that the pump housing 81 is one part of the engine cover 58, and to assemble the pump housing 81 with a cover housing 82 forms a pump chamber 83.
  • a pump shaft 85 with blades 84 is rotatably supported through the ball bearing 86.
  • An engaging protrusion 85a is formed on a tip of the pump shaft 85.
  • An engaging recess 9c is formed on a tip of the balancer shaft 9 positioned opposite to the pump shaft 85.
  • the engaging protrusion 85a of the pump shaft 85 is engaged with the engaging recess 9c of the balancer shaft 9, and the balancer shaft 9 and the pump shaft 85 are coupled integrally and rotatably.
  • the pump housing 81 is protruded into the cam chain chamber 59, and it is configured to be in a small size by that the pump shaft 85 is sealed in this pump housing 81 with a mechanical sealing member 98 and an oil-sealing member 99.
  • the mechanical sealing member 98 and the oil-sealing member 99 shut out the cooling water and oil, and a weep hole 8 la is formed between the mechanical sealing member 98 and the oil-sealing member 99.
  • a cooling water intake passage 90 is provided, and the cooling water from the radiator 5 is supplied to the pump chamber 83 through the cooling water intake passage 90.
  • the cooling water is supplied from a cooling water discharging passage 91 formed in the cover housing 82 and the engine cover 58 to each part of the engine.
  • a strainer 701 and a baffle plate 702 are fixed integrally. That is to say, the strainer 701 is fixed with fixtures 703 in the deep portion 700a of the bottom of the oil pan 700.
  • the bottom surface of the deep portion 700a of the bottom of the oil pan700 is flat, and the baffle plate 702 is placed in parallel with the bottom surface of the deep portion 700a of the bottom.
  • the strainer 701 is connected with the oil piping 704, and the oil piping 704 is fixed on the inner wall of the oil pan 700 with the fixture 705.
  • An assembly groove 702a is formed in the baffle plate 702.
  • the assembly groove 702a is inserted into the oil piping 704.
  • the front part 702b, rear part 702c and right side part 702d of the baffle plate 702 is fixed on the inner wall of the oil pan 700 by welding, and the left side part 702e is fixed in the shallow portion 700b of the bottom of the oil pan 700 by welding.
  • the baffle plate 702 is arranged to be that the opening 721 is provided between the front part 702b, rear part 702c and right side part 702d connected with the baffle plate and the inner wall of the oil pan 700, and that the opening 722 is provided between the left side part 702e and the shallow portion 700b of the bottom of the oil pan 700, so that dropping oil on the baffle plate 702 would run down from the opening 721,722.
  • a connection 740 on the oil piping side disposed in the oil piping 704 is, as shown in Fig. 7, configured to be capable of inserting and connecting to the connection 750 on the side of the oil pump disposed on the cylinder block 50 of the engine body 6. More specifically, an inserting recess 751 is formed in the connection 750 on the oil pump side, and an inserting protrusion 741 is formed in the connection 740 on the oil piping side.
  • the inserting recess 751 is formed by expanding the diameter of tapped hole of the mounting screw to the cylinder block 50.
  • a sealing member 742 and a guiding member 743 are provided to the inserting protrusion 741, and the sealing member 742 is comprised of an 0-ring fitted into an annular recess 744.
  • the inserting protrusion 741 disposed in the connection 740 on the oil pump side is guided with the guiding member 743 to be inserted into the inserting recess 751 disposed in the connection 750 on the oil pump side and to be positioned between the oil pan 700 and the cylinder block 50 with the guiding member 743, the reduction of the load onto the sealing member 742 and simple and reliable connection can be achieved without any loss of sealing ability.
  • Fixing integrally to unitize the oil pan 700 with the strainer 701 and the baffle plate 702 enables the strainer assembling recess onto the baffle plate 702 to be unnecessary, affect of air flow caused by the vertical movement of the pistons to the oil surface to be reduced, and the engine performance to be improved at high engine speed region. Also, fixing integrally to utilize the oil pan 700 with the strainer 701 and the baffle plate 702 enables number of assembling man-hour at production line to be reduced, and the assembling ability to be improved.
  • the strainer assembling recess onto the baffle plate 702 can be unnecessary, and affect of air flow caused by the vertical movement of the pistons to the oil surface can be reduced.
  • fixing integrally to unitize the oil pan with the strainer and the baffle plate enables the strainer assembling recess onto the baffle plate to be unnecessary, affect of air flow caused by the vertical movement of the pistons to the oil surface to be reduced, and the engine performance to be improved at high engine speed region. Also, fixing integrally to utilize the oil pan with the strainer and the baffle plate enables number of assembling man-hour at production line to be reduced, and the assembling ability to be improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Gasket Seals (AREA)
EP20000111178 1999-05-24 2000-05-24 Vorrichtung für Brennkraftmaschine Expired - Lifetime EP1055803B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14351799 1999-05-24
JP11143517A JP2000337123A (ja) 1999-05-24 1999-05-24 エンジン装置

Publications (2)

Publication Number Publication Date
EP1055803A1 true EP1055803A1 (de) 2000-11-29
EP1055803B1 EP1055803B1 (de) 2007-09-12

Family

ID=15340590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000111178 Expired - Lifetime EP1055803B1 (de) 1999-05-24 2000-05-24 Vorrichtung für Brennkraftmaschine

Country Status (3)

Country Link
EP (1) EP1055803B1 (de)
JP (1) JP2000337123A (de)
DE (1) DE60036324D1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300552A1 (de) * 2001-10-02 2003-04-09 Perkins Engines Company Limited Drainagevorrichtung zum Flüssigkeitsbehälter
EP1304451A3 (de) * 2001-10-19 2003-08-20 OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. Ölbehälter einer Brennkraftmaschine mit einem integrierten Füllrohr
EP1903191A3 (de) * 2006-08-28 2009-07-08 HONDA MOTOR CO., Ltd. Ölfilterstruktur für eine Brennkraftmaschine und Ölrückführungsstruktur für eine Brennkraftmaschine
EP1731725A3 (de) * 2005-06-06 2010-06-23 Giampaolo Benussi Ölwanne für Brennkraftmaschine und Verfahren zu deren Herstellung
EP2264289A1 (de) * 2009-05-27 2010-12-22 Honda Motor Co., Ltd. Ölsieb für Außenbordmotoreinheit
US10344640B2 (en) 2017-03-30 2019-07-09 Honda Motor Co., Ltd. Oil strainer support structure for internal combustion engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653464A (en) * 1970-04-13 1972-04-04 Gen Motors Corp Engine oil pan
FR2427472A1 (fr) * 1978-06-03 1979-12-28 Volkswagenwerk Ag Moteur a combustion interne destine a un vehicule automobile et comprenant un carter d'huile subdivise
US4615314A (en) * 1979-11-01 1986-10-07 Cummins Engine Company, Inc. Reversible oil pan assembly
US4909203A (en) * 1988-04-26 1990-03-20 Honda Giken Kabushiki Kaisha Oil reservoir structure for engine
US4938184A (en) * 1989-09-21 1990-07-03 General Motors Corporation Engine oil return system
US6041752A (en) * 1998-11-04 2000-03-28 Technology Holdings, Inc. Moldable integrated oil pan and suction tube for an internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653464A (en) * 1970-04-13 1972-04-04 Gen Motors Corp Engine oil pan
FR2427472A1 (fr) * 1978-06-03 1979-12-28 Volkswagenwerk Ag Moteur a combustion interne destine a un vehicule automobile et comprenant un carter d'huile subdivise
US4615314A (en) * 1979-11-01 1986-10-07 Cummins Engine Company, Inc. Reversible oil pan assembly
US4909203A (en) * 1988-04-26 1990-03-20 Honda Giken Kabushiki Kaisha Oil reservoir structure for engine
US4938184A (en) * 1989-09-21 1990-07-03 General Motors Corporation Engine oil return system
US6041752A (en) * 1998-11-04 2000-03-28 Technology Holdings, Inc. Moldable integrated oil pan and suction tube for an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300552A1 (de) * 2001-10-02 2003-04-09 Perkins Engines Company Limited Drainagevorrichtung zum Flüssigkeitsbehälter
EP1304451A3 (de) * 2001-10-19 2003-08-20 OFFICINE METALLURGICHE G. CORNAGLIA S.p.A. Ölbehälter einer Brennkraftmaschine mit einem integrierten Füllrohr
EP1731725A3 (de) * 2005-06-06 2010-06-23 Giampaolo Benussi Ölwanne für Brennkraftmaschine und Verfahren zu deren Herstellung
EP1903191A3 (de) * 2006-08-28 2009-07-08 HONDA MOTOR CO., Ltd. Ölfilterstruktur für eine Brennkraftmaschine und Ölrückführungsstruktur für eine Brennkraftmaschine
EP2264289A1 (de) * 2009-05-27 2010-12-22 Honda Motor Co., Ltd. Ölsieb für Außenbordmotoreinheit
US10344640B2 (en) 2017-03-30 2019-07-09 Honda Motor Co., Ltd. Oil strainer support structure for internal combustion engine

Also Published As

Publication number Publication date
EP1055803B1 (de) 2007-09-12
JP2000337123A (ja) 2000-12-05
DE60036324D1 (de) 2007-10-25

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