JPS6157447B2 - - Google Patents
Info
- Publication number
- JPS6157447B2 JPS6157447B2 JP141982A JP141982A JPS6157447B2 JP S6157447 B2 JPS6157447 B2 JP S6157447B2 JP 141982 A JP141982 A JP 141982A JP 141982 A JP141982 A JP 141982A JP S6157447 B2 JPS6157447 B2 JP S6157447B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- crank
- section
- crankshaft
- journal
- 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
Links
- 239000003921 oil Substances 0.000 claims abstract description 26
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 4
- 208000032369 Primary transmission Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- 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
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
-
- 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
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- 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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- 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
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1808—Number of cylinders two
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/08—Endless member is a chain
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/18—DOHC [Double overhead camshaft]
-
- 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
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、自動二輪車・自動三輪車などの小型
車両に搭載されるＶ型多気筒・水平対向多気筒等
の内燃機関におけるクランク軸の潤滑装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crankshaft lubrication device for an internal combustion engine such as a V-type multi-cylinder or horizontally opposed multi-cylinder engine mounted on a small vehicle such as a motorcycle or a tricycle.
上記型式の内燃機関は、シリンダの配列の関係
で横置き（クランク軸を車体の左右方向に向け
る）の場合は機関の横幅をせまくすることがで
き、縦置き（クランク軸を車体の前後方向に向け
る）の場合は、機関を前後方向に小さくできて機
関の軽量化に効果がある。 Due to the arrangement of the cylinders, internal combustion engines of the above types can be installed horizontally (with the crankshaft pointing in the left-right direction of the vehicle body) to narrow the width of the engine; ), the engine can be made smaller in the longitudinal direction, which is effective in reducing the weight of the engine.
ところが上記型式の内燃機関は、各ピストンの
コンロツドの大端部を共通のクランクピン部に取
付けるため、クランク軸は両端による２点支持と
なる。即ちクランク軸の中央部は軸受けされない
から、クランク軸の剛性を高める必要がある。 However, in the above-mentioned type of internal combustion engine, the large end of the connecting rod of each piston is attached to a common crank pin, so the crankshaft is supported at two points by both ends. That is, since the central portion of the crankshaft is not supported by a bearing, it is necessary to increase the rigidity of the crankshaft.
更にシリンダの配列の関係上、クランク軸の一
端を軸受より外側に延長し、その延長部分に一対
のカムチエーン駆動用スプロケツトを取付け、そ
の軸端に発電機を取付ける。即ちクランク軸の一
端にスプロケツト及び発電機が片持ち的に取付け
られるので、クランク軸の上記発電機取付側のジ
ヤーナル部乃至端部は特に剛性を高める必要があ
る。 Furthermore, due to the arrangement of the cylinders, one end of the crankshaft is extended outside of the bearing, a pair of cam chain drive sprockets are attached to that extension, and a generator is attached to the shaft end. That is, since the sprocket and the generator are mounted on one end of the crankshaft in a cantilevered manner, it is necessary to particularly increase the rigidity of the journal portion or the end portion of the crankshaft on the side where the generator is attached.
しかしクランクピン部の潤滑は、クランクジヤ
ーナル部の軸受面に外部から供給された潤滑油
を、クランクジヤーナル部に穿つた油路を通じて
クランクピンの中心の油溜に導き、そこから外周
面に供給するのが一般的構成である。即ちクラン
クジヤーナル部の心に穴加工するので、Ｖ型多気
筒・水平対向多気筒等の内燃機関では、そのクラ
ンク軸の剛性向上に特に留意しなければならな
い。 However, in order to lubricate the crank pin, lubricating oil is supplied from the outside to the bearing surface of the crank journal, is guided through an oil passage drilled in the crank journal to an oil reservoir in the center of the crank pin, and from there is supplied to the outer circumferential surface. This is the general configuration. That is, since the hole is drilled in the center of the crank journal, special attention must be paid to improving the rigidity of the crankshaft in internal combustion engines such as V-type multi-cylinder and horizontally opposed multi-cylinder engines.
本発明は、クランク軸の剛性を損わないクラン
ク軸潤滑装置を提供するもので、クランクジヤー
ナル部の軸受面に供給された潤滑油をクランクピ
ン部潤滑用油溜に導く油路を、カムチエーン駆動
用スプロケツト及び発電機取付け側と反対側のジ
ヤーナル部に設けたことを要旨とする。 The present invention provides a crankshaft lubrication device that does not impair the rigidity of the crankshaft.The present invention provides a crankshaft lubrication device that does not impair the rigidity of the crankshaft. The gist is that it is installed on the journal part on the opposite side to the sprocket and generator installation side.
以下図示の実施例について構造を説明すると、
１は自動二輪車、２はその車体に搭載されたＶ型
２気筒横置き内燃機関、３は変速機ケース・カム
チエーンケースと一体を成すクランクケース、４
Ｒ・４Ｌはクランクケースサイドカバー、５はシ
リンダブロツク、６はシリンダヘツド、７はヘツ
ドカバーで、シリンダブロツク５の下部の対向す
る軸受壁５Ｒ・５Ｌ間にクランク軸８が支持さ
れ、クランク軸８の中央のクランクピン部８１
に、前後のピストン９Ａ，９Ｂの各コンロツド１
０の大端部が取付けられている。 The structure of the illustrated embodiment will be explained below.
1 is a motorcycle, 2 is a V-type 2-cylinder horizontal internal combustion engine mounted on the vehicle body, 3 is a crankcase that is integrated with the transmission case and cam chain case, 4
R and 4L are crankcase side covers, 5 is a cylinder block, 6 is a cylinder head, and 7 is a head cover. The crankshaft 8 is supported between the opposing bearing walls 5R and 5L at the bottom of the cylinder block 5. Central crank pin part 81
, each connecting rod 1 of the front and rear pistons 9A, 9B
0 big end is attached.
軸受壁５Ｌから突出したクランク軸８の延長端
部８２に２個のスプロケツト１１，１１が並列に
固着されていて、前部カム軸１２Ａ及び後部カム
軸１２Ｂの各スプロケツト１３，１３との間にカ
ムチエーン１４Ａ，１４Ｂが巻掛けられている。
更にカム軸の延長端部８２の先に発電機１５が取
付けられている。この発電機１５の重量とチエー
ン１４Ａ，１４Ｂを左側のクランクジヤーナル部
８３Ｌで支えている。右側のクランクジヤーナル
部８３Ｒより外に延びている端部には一次伝動歯
車１６及びスタータモータ連動用歯車１７が取付
けられているが、発電機１５に比べて軽量であ
り、クランクジヤーナル部８３Ｒに負担は掛から
ない。 Two sprockets 11, 11 are fixed in parallel to the extended end 82 of the crankshaft 8 protruding from the bearing wall 5L, and there are two sprockets 11, 11 fixed in parallel to each of the sprockets 13, 13 of the front camshaft 12A and rear camshaft 12B. Cam chains 14A and 14B are wrapped around it.
Furthermore, a generator 15 is attached to the end of the extended end 82 of the camshaft. The weight of the generator 15 and the chains 14A, 14B are supported by the left crank journal portion 83L. A primary transmission gear 16 and a starter motor interlocking gear 17 are attached to the end extending outward from the right crank journal part 83R, but they are lighter than the generator 15 and do not put any burden on the crank journal part 83R. It doesn't apply.
上記重量負担が掛からない側のクランクジヤー
ナル部８３Ｒの心部に、そのジヤーナル部軸受面
とクランクピン部８１の中心の油溜１８とをつな
ぐ油路１９が開いている。そして油溜１８とクラ
ンクピン部８１の外周面、即ちコンロツド大端部
との軸受面とを半径方向に開けた複数の小油路２
０で連通している。 An oil passage 19 connecting the journal bearing surface and the oil sump 18 at the center of the crank pin part 81 is open in the center of the crank journal part 83R on the side where the weight is not applied. A plurality of small oil passages 2 are opened in the radial direction between the oil sump 18 and the outer peripheral surface of the crank pin portion 81, that is, the bearing surface of the connecting rod large end.
It communicates with 0.
左右のクランクジヤーナル部８３Ｌ，８３Ｒの
軸受面には機関の他の部分から油路２１を通じて
ポンプで潤滑油が供給される。 Lubricating oil is supplied from other parts of the engine to the bearing surfaces of the left and right crank journal parts 83L and 83R by a pump through an oil passage 21.
発電機１５、カムチエーン駆動用スプロケツト
１１，１１を取付けた側と反対側のクランクジヤ
ーナル部８３Ｒの軸受面を潤滑する油の一部は、
油路１９を経て油溜１８に導かれ、油溜１８内の
油は遠心力の作用で小油路２０を通じてコンロツ
ド大端部に対する軸受面に至るものである。 A portion of the oil that lubricates the bearing surface of the crank journal portion 83R on the opposite side to the side where the generator 15 and cam chain drive sprockets 11, 11 are attached is
The oil in the oil sump 18 is guided through the oil passage 19, and the oil in the oil sump 18 is brought to the bearing surface for the large end of the connecting rod through the small oil passage 20 due to the action of centrifugal force.
本発明クランク軸の潤滑装置は上記のように、
クランクピン部８１に対するクランクジヤーナル
部からの潤滑油給送用油路１９を、発電機１５、
カムチエーン駆動用スプロケツト１１，１１等の
重量を負担しない側のクランクジヤーナル部８３
Ｒの心部に設けたので、上記発電機１５及びスプ
ロケツト１１，１１を片持ち支持する側のクラン
クジヤーナル部８３Ｌの穴加工による強度低下が
ない。 As described above, the crankshaft lubrication device of the present invention has the following features:
The oil passage 19 for supplying lubricating oil from the crank journal part to the crank pin part 81 is connected to the generator 15,
Crank journal part 83 on the side that does not bear the weight of the cam chain drive sprockets 11, 11, etc.
Since it is provided at the center of the R, there is no decrease in strength due to hole machining in the crank journal portion 83L on the side that supports the generator 15 and sprockets 11, 11 in a cantilevered manner.
従つてクランク軸径を太くする必要がなくて、
クランク軸が軽くなり、内燃機関全体の軽量コン
パクト化に有効である。 Therefore, there is no need to increase the diameter of the crankshaft,
The crankshaft becomes lighter, which is effective in making the entire internal combustion engine lighter and more compact.
第１図は自動二輪車の側面図、第２図は本発明
潤滑装置を備えたＶ型２気筒横置き機関の横断平
面図。
２は内燃機関、３はクランクケース、５はシリ
ンダブロツク、６はシリンダヘツド、７はヘツド
カバー、８はクランク軸、８１はクランクピン
部、８２は延長端部、８３Ｒ，８３Ｌはクランク
ジヤーナル部、９Ａ，９Ｂはピストン、１０はコ
ンロツド、１１はカムチエーン駆動用スプロケツ
ト、１２Ａ，１２Ｂはカム軸、１３は従動側スプ
ロケツト、１４Ａ，１４Ｂはカムチエーン、１５
は発電機、１８は油溜、１９，２０，２１は油
路。
FIG. 1 is a side view of a motorcycle, and FIG. 2 is a cross-sectional plan view of a V-type two-cylinder horizontal engine equipped with the lubricating device of the present invention. 2 is an internal combustion engine, 3 is a crankcase, 5 is a cylinder block, 6 is a cylinder head, 7 is a head cover, 8 is a crankshaft, 81 is a crank pin portion, 82 is an extension end portion, 83R, 83L are a crank journal portion, 9A , 9B are pistons, 10 are connecting rods, 11 are cam chain drive sprockets, 12A, 12B are cam shafts, 13 are driven side sprockets, 14A, 14B are cam chains, 15
is a generator, 18 is an oil reservoir, and 19, 20, and 21 are oil passages.
Claims (1)
その延長部分にカムチエーン駆動用スプロケツト
を取付け、更に軸端に発電機を取付けたクランク
軸においてクランクジヤーナル部の軸受面に供給
された潤滑油をクランクピン部潤滑用油溜に導く
油路を、上記スプロケツト及び発電機取付け側と
反対側のジヤーナル部に設けたことを特徴とする
内燃機関におけるクランク軸の潤滑装置。1 Extend one end of the crankshaft outward from the bearing,
A cam chain drive sprocket is attached to the extended part of the crankshaft, and a generator is attached to the shaft end of the crankshaft.The oil passage that guides the lubricating oil supplied to the bearing surface of the crank journal part to the oil sump for lubricating the crank pin part is installed as described above. A lubricating device for a crankshaft in an internal combustion engine, characterized in that it is provided in a journal portion on the opposite side to the sprocket and generator mounting side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP141982A JPS58119910A (en) | 1982-01-08 | 1982-01-08 | Crank shaft lubricator for internal-combustion engine |
| US06/456,692 US4589382A (en) | 1982-01-08 | 1983-01-10 | V-type multicylinder internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP141982A JPS58119910A (en) | 1982-01-08 | 1982-01-08 | Crank shaft lubricator for internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58119910A JPS58119910A (en) | 1983-07-16 |
| JPS6157447B2 true JPS6157447B2 (en) | 1986-12-06 |
Family
ID=11500939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP141982A Granted JPS58119910A (en) | 1982-01-08 | 1982-01-08 | Crank shaft lubricator for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119910A (en) |
-
1982
- 1982-01-08 JP JP141982A patent/JPS58119910A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58119910A (en) | 1983-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5172786A (en) | V belt type automatic transmission system | |
| US4753199A (en) | Internal combustion engine | |
| US5860402A (en) | Oil pump drive for engine | |
| US6672982B2 (en) | Motorcycle transmission | |
| JPH0389047A (en) | Balancer for engine | |
| JP2000257538A (en) | Overhead camshaft engine with starter motor | |
| EP0754879B1 (en) | Internal combustion engine with balancers | |
| CN1327113C (en) | Engine secondary balancer system | |
| JPS63243415A (en) | Breather device for four-cycle engine | |
| JP4321100B2 (en) | Secondary balancer for outboard motor vertical engine | |
| JPS6157447B2 (en) | ||
| JP3185625B2 (en) | Lubrication system for 4-cycle engine | |
| US8528515B2 (en) | Crankcase of internal combustion engine | |
| JP4544835B2 (en) | Balancer device for internal combustion engine | |
| JP2833680B2 (en) | Cooling structure of engine gear made of synthetic resin | |
| JP3657303B2 (en) | Engine lubrication equipment | |
| JPH1037942A (en) | Lubrication system for 4-cycle engine | |
| JPH09209731A (en) | Internal combustion engine lubrication system | |
| JP3156789B2 (en) | Valve train for V-type 5-valve engine | |
| JP3549605B2 (en) | Engine generator layout | |
| JP3989716B2 (en) | Lubricating oil supply structure for engine | |
| JP4395117B2 (en) | Engine secondary balancer | |
| JPH0212251Y2 (en) | ||
| JP3261902B2 (en) | Oil passage structure in cylinder head of 4-cycle engine | |
| JP2516488Y2 (en) | DOHC engine silida head |