CN106030055A - Internal combustion engine comprising cam lubrication troughs - Google Patents
Internal combustion engine comprising cam lubrication troughs Download PDFInfo
- Publication number
- CN106030055A CN106030055A CN201580008799.1A CN201580008799A CN106030055A CN 106030055 A CN106030055 A CN 106030055A CN 201580008799 A CN201580008799 A CN 201580008799A CN 106030055 A CN106030055 A CN 106030055A
- Authority
- CN
- China
- Prior art keywords
- internal combustion
- combustion engine
- cam
- groove
- cylinder head
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 22
- 238000005461 lubrication Methods 0.000 title claims abstract description 10
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 235000015927 pasta Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
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
Abstract
The invention relates to an internal combustion engine comprising a cylinder head and, in the cylinder head, a camshaft distribution system lubricated by a lubrication system, said cylinder head being horizontal or inclined below the horizontal plane. Each cam (5 to 8) is lubricated by a trough (25 to 28) placed under the cam in order to form a local tank into which part of the cam descends. The volume of the trough is defined by two side faces, spaced apart from one another by between 1.1 and 3 times the thickness of the cam, and a base, the edge of at least one of the side faces defining a level that ensures that the top of the cam descends into the volume thus defined.
Description
Technical field
The present invention relates to field of internal combustion engine, more particularly, it relates to have level or at horizontal plane inclined downward
The electromotor of cylinder.
Background technology
Cylinder head is typically the removable upper of reciprocating-piston engine.The top of cylinder head closed cylinder.At some gas
In cylinder, inlet valve and exhaust valve are contained in cylinder head.The shape of cylinder head and characteristic thereof generally design with electromotor
Be in progress closely related, more specifically, according to the shape of timing type and combustor determine cylinder head shape and
Its characteristic.
No. 2002021989 publications of Japanese patent application JP known in the art.This document describe such a internal combustion
Machine, in this internal combustion engine, cylinder head has the groove for lubricating cam or dish.These grooves limited by cylinder head and
Limited by cylinder head lid.
This solution can not most preferably set pasta: oil spill goes out and drops in chain cabin.Additionally, this solution is not
Applicable cylinder has the electromotor of obvious gradient (more than 10 degree).The solution of described document teaching includes design
Two grooves with unique construction, a groove is for acclivitous cylinder, and another groove is for downward-sloping cylinder.
Japan Patent JP2009270495 publication describes one to be had and is formed between cylinder head and cylinder head bearing
The electromotor of single groove, set the pasta of the unique gradient being suitable to cylinder head.
German patent DE 102008014828 describes a kind of horizontal engine including that lubricating oil returns system.
Patent JP S59226217, EP0821144, FR2464364 or EP0377829 describe other lubrications
Scheme, these schemes have the groove of the unique angle of inclination structure for cylinder.
The defect of prior art
In the prior art, cam is lubricated by injection or sputtering.Problem of the prior art is, when starting
And during the first time of cam rotates, cam contacted with front tappet before it is by proper lubrication.This problem
For cylinder head level or at the electromotor of horizontal plane inclined downward (" upside down ") for the most notable.
Specifically, for bi-block engine, prior art solution can not solve to lubricate downward-sloping gas
The problem that the cam of cylinder and lubrication have the cam of the acclivitous cylinder of the groove of same type.
Summary of the invention
In order to remedy those defects, according to approve most, the present invention provides a kind of internal combustion engine, and this internal combustion engine has relatively
In at least one cylinder head of horizontal plane, and have by being positioned in described cylinder head and moistening by lubricating system
The timing system of sliding camshaft operation, described internal combustion engine is characterised by, each cam is all via being placed in described cam
Lower section with formed partial container groove lubrication, a part for described cam is immersed in described groove, the volume of described groove by
Two sides and bottom limit, and in the described side of described groove, the edge of at least one determines the described cam of guarantee
End be immersed in the degree in described volume, determine described volume in this way, and formed respectively corresponding described in
-X ° of the gradient of the cylinder of combustion engine is positioned on the both sides of each described groove with the reciprocal side edge at the angle of+X °, wherein
The inclination angle of the corresponding described cylinder head of X.
Preferably, described internal combustion engine is the bi-block engine with two opposed and identical cylinder head, described gas
The axis of cylinder forms the angle of-X ° and+X ° the most respectively；Further, described groove is by each extending over half-and-half bearing
And extend two of described cylinder head parts and formed, formed corresponding-X ° with the described reciprocal side margin location at+X ° of angle
On the both sides of each described groove.
Preferably, described electromotor has two opposed and identical cylinder head, and described groove is by each extending over
Half-and-half bearing and extend two of described cylinder head parts and formed.
For this patent, term " groove " is for referring to a shell, and the volume of this shell is limited by two sides and bottom,
Spacing between said two side is in the scope of 1.1 times of thickness of described cam with 3 times of the thickness of described cam
In, the edge of at least one in described side is defined such degree, the end leaching of cam described in this guarantee
Enter in the described volume limited in this way.
Preferably, relative to the position of described cam, described groove is defined as to ensure that the described end of described cam is moistened
Sliding, but the base diameter of described cam does not extend in the oil being contained in described groove.
Advantageously, described cylinder has the gradient of 25 degree.
Preferably, each groove is formed by two complementary parts.
According to favourable modified example, form two fragment bit at-X ° of angle with+X ° of the gradient of corresponding cylinder respectively
On the both sides of each groove, the inclination angle of the corresponding described cylinder of X, this angle is in the range of 0 ° to 45 °.
Detailed description of the invention
Read be given referring to the drawings non-limiting embodiments described below on the basis of will be better appreciated by this
Bright, in the accompanying drawings:
Fig. 1 is 3/4ths front views of the cylinder head without its cylinder head lid；And
Fig. 2 Yu Fig. 3 respectively illustrates front air cylinder lid and the exhaust hood lid of the twin cylinder engine tilted along the longitudinal direction
The detailed profiles figure of groove.
The present invention is described, in this embodiment with reference to the bi-block engine of placing side by side that longitudinal direction gradient is 25 degree along vehicle
In, described vehicle is motorcycle.Front air cylinder tilts-25 degree, and its cylinder head is downward, and exhaust hood tilts+25 degree,
Its cylinder head is upwards.The two cylinder head 1,2 is identical, only direction change and be not in relation to cross-section in faced by
Claim.This quantity making it possible to reduce part.
Just arranged in a known manner by the inlet camshaft 3 and exhaust camshaft 4 controlling cam 5,6,7,8
Time, cam 5,6,7,8 activates tappet 9,10,11,12.
Camshaft is by the semicolumn recess formed in cylinder head and the complementary semicircle formed in upper half-and-half bearing 13
The bearing that post recess is formed guides in a rotative pattern.
Half-and-half bearing 13 is from coordinating with cylinder head 1 and the most mach foundry goods is constituted.Half-and-half bearing 13 is by cylinder
Determine intermediate bushing location.Half-and-half bearing 13 is fixed to cylinder head by screw 14 to 22.Half-and-half bearing 13 is the most at its center
It is provided with for the hole 23 close to spark plug.Half-and-half bearing 13 has the fastening for fastener chain boots (chain shoe)
District 24.
Cam 5 to 8 is lubricated by sputtering in groove 25 to 28.
Each groove 25 to 28 is formed by two complementary portions.Form-25 degree of gradient of corresponding cylinder respectively with+25
The segmentation at the angle of degree is positioned on the both sides of each groove 25 to 28.25 degree of angles are only used as embodiment and point out and do not constitute limit
System.Gradient can be up to 45 degree, and for horizontal air cylinder, minimum can be 0 degree.
One of described part of groove is made up of the extension of half-and-half bearing 13, and another portion in the described part of groove
Divide and be made up of the extension of cylinder head 1.The lateral edges of the part extending half-and-half bearing forms the angle of 25 degree；Extend gas
The lateral edges of the part of cylinder cap forms the angle of-25 degree.Therefore, regardless of being provided with the cylinder of cylinder head, sidepiece
One of segmentation is often level.
This structure makes the cylinder head can be identical, but also guarantee suitably to regulate the cam that is positioned in high cylinder head with
The lubrication of the cam being positioned in low cylinder head.As shown in Figure 2 and Figure 3, wherein under a kind of situation, lateral edges just
One of the setting of fuel head is provided, and on the other case, lateral edges complementary just provides setting of fuel head
Fixed.
In fig. 2, the pasta 32,33 of front air cylinder lid 1 is by the edge of the part extending half-and-half bearing 13 of corresponding groove
34,35 set.In complementary part, oil is kept by the side of groove.
In figure 3, the pasta 36,37 of exhaust hood lid by the edge 38 of the part of the extension cylinder head 2 of corresponding groove,
39 set.In complementary part, oil is maintained at by the side of groove in the part extending half-and-half bearing.
Groove is defined as ensureing that the end 30 of cam is lubricated relative to the position of cam, but the base diameter 31 of cam
Not interior through the oil being contained in groove.
Claims (6)
1. an internal combustion engine, this internal combustion engine has at least one cylinder head being inclined relative to horizontal, and has and borrow
Help the timing system of the camshaft operation being positioned in described cylinder head and by lubricating system lubrication, the spy of described internal combustion engine
Levy and be: each cam (5 to 8) is all via being placed in below described cam to form the groove (25 to 28) of partial container
Lubrication, a part for described cam is immersed in described groove, and the volume of described groove is limited by two sides and bottom,
And the edge of at least one determines that the end ensureing described cam is immersed in described volume in the described side of described groove
In degree, determine described volume in this way；Further, the gradient of the cylinder of corresponding described internal combustion engine is formed respectively
-X ° with the reciprocal side edge (34,35 at the angle of+X °；38,39) it is positioned at the two of each described groove (25 to 28)
On side, the wherein inclination angle of the corresponding described cylinder head (1,2) of X.
Internal combustion engine the most according to claim 1, it is characterised in that described internal combustion engine be have two opposed and
The bi-block engine of identical cylinder head, the axis of described cylinder formed the most respectively-X ° with+X °
Angle；Further, described groove (25 to 28) by each extending over half-and-half bearing and extending two of described cylinder head parts and formed,
Formed corresponding-X ° with the described reciprocal side edge (34,35 at+X ° of angle；38,39) it is positioned at each described groove (25
To 28) both sides on.
Internal combustion engine the most according to claim 1 and 2, it is characterised in that described groove is relative to the position of described cam
Put to be determined to be and ensure that the described end (30) of described cam is lubricated, but the base diameter of described cam (31) is no
It extend in the oil being contained in described groove.
Internal combustion engine the most according to claim 2, it is characterised in that described internal combustion engine has opposed cylinder, institute
State cylinder and be inclined relative to horizontal 25 degree.
Internal combustion engine the most according to claim 1, it is characterised in that each groove (25 to 28) is by two mutually
The part mended is formed.
Internal combustion engine the most according to claim 1, it is characterised in that the described volume of described groove is limited by two sides
Fixed, the spacing between said two side is at 3 times of 1.1 times of thickness to described cam of the thickness of described cam
In the range of.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1450242 | 2014-01-13 | ||
| FR1450242A FR3016409B1 (en) | 2014-01-13 | 2014-01-13 | EXPLOSION ENGINE COMPRISING CAM LUBRICATION AUGETS |
| PCT/FR2015/050030 WO2015104499A1 (en) | 2014-01-13 | 2015-01-08 | Internal combustion engine comprising cam lubrication troughs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106030055A true CN106030055A (en) | 2016-10-12 |
Family
ID=50780638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580008799.1A Pending CN106030055A (en) | 2014-01-13 | 2015-01-08 | Internal combustion engine comprising cam lubrication troughs |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3094832B1 (en) |
| JP (1) | JP6484837B2 (en) |
| CN (1) | CN106030055A (en) |
| FR (1) | FR3016409B1 (en) |
| WO (1) | WO2015104499A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0377829A2 (en) * | 1988-12-09 | 1990-07-18 | Yamaha Motor Co., Ltd. | Camshaft lubrication system for an internal-combustion engine |
| JPH05209506A (en) * | 1992-01-31 | 1993-08-20 | Isuzu Motors Ltd | Lubricating device for v-shaped ohv engine |
| EP0821144A1 (en) * | 1996-07-26 | 1998-01-28 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Cylinder head arrangement of an internal combustion engine |
| EP1170480A2 (en) * | 2000-07-05 | 2002-01-09 | Yamaha Hatsudoki Kabushiki Kaisha | Motorcycle, especially scooter type motorcycle |
| CN202970848U (en) * | 2012-12-10 | 2013-06-05 | 李斯特技术中心（上海）有限公司 | Oil baffle plate for preventing lubricating oil of camshaft and valve mechanism from splashing to oil-gas separator |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE443021B (en) * | 1979-09-03 | 1986-02-10 | Yanmar Diesel Engine Co | FORBRENNINGSMOTOR |
| JPS59226217A (en) * | 1983-06-07 | 1984-12-19 | Honda Motor Co Ltd | Lubricating device of valve mechanism in internal- combustion engine |
| JPH04107427U (en) * | 1991-02-28 | 1992-09-17 | 富士重工業株式会社 | Cam lubrication system for horizontal DOHC engine |
| JPH04116613U (en) * | 1991-03-28 | 1992-10-19 | ダイハツ工業株式会社 | engine lubrication system |
| JPH074806U (en) * | 1993-06-24 | 1995-01-24 | 富士重工業株式会社 | Direct acting valve mechanism |
| JP2002021989A (en) * | 2000-07-05 | 2002-01-23 | Yamaha Motor Co Ltd | Cooling apparatus of engine for motorcycle |
| DE102008014828A1 (en) * | 2008-03-18 | 2009-09-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Internal combustion engine |
| JP5135052B2 (en) * | 2008-05-08 | 2013-01-30 | ヤマハ発動機株式会社 | Engine and scooter type motorcycles |
-
2014
- 2014-01-13 FR FR1450242A patent/FR3016409B1/en not_active Expired - Fee Related
-
2015
- 2015-01-08 WO PCT/FR2015/050030 patent/WO2015104499A1/en active Application Filing
- 2015-01-08 JP JP2016563267A patent/JP6484837B2/en active Active
- 2015-01-08 CN CN201580008799.1A patent/CN106030055A/en active Pending
- 2015-01-08 EP EP15702536.2A patent/EP3094832B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0377829A2 (en) * | 1988-12-09 | 1990-07-18 | Yamaha Motor Co., Ltd. | Camshaft lubrication system for an internal-combustion engine |
| JPH05209506A (en) * | 1992-01-31 | 1993-08-20 | Isuzu Motors Ltd | Lubricating device for v-shaped ohv engine |
| EP0821144A1 (en) * | 1996-07-26 | 1998-01-28 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Cylinder head arrangement of an internal combustion engine |
| EP1170480A2 (en) * | 2000-07-05 | 2002-01-09 | Yamaha Hatsudoki Kabushiki Kaisha | Motorcycle, especially scooter type motorcycle |
| CN202970848U (en) * | 2012-12-10 | 2013-06-05 | 李斯特技术中心（上海）有限公司 | Oil baffle plate for preventing lubricating oil of camshaft and valve mechanism from splashing to oil-gas separator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3016409A1 (en) | 2015-07-17 |
| WO2015104499A1 (en) | 2015-07-16 |
| EP3094832A1 (en) | 2016-11-23 |
| JP6484837B2 (en) | 2019-03-20 |
| FR3016409B1 (en) | 2018-11-16 |
| JP2017502212A (en) | 2017-01-19 |
| EP3094832B1 (en) | 2017-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |
|
| WD01 | Invention patent application deemed withdrawn after publication |