JPS59105919A - Air cooling device of motorcycle engine - Google Patents
Air cooling device of motorcycle engineInfo
- Publication number
- JPS59105919A JPS59105919A JP57214992A JP21499282A JPS59105919A JP S59105919 A JPS59105919 A JP S59105919A JP 57214992 A JP57214992 A JP 57214992A JP 21499282 A JP21499282 A JP 21499282A JP S59105919 A JPS59105919 A JP S59105919A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- air
- fender
- running
- cooling
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000005773 Enders reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は自動二輪車のエンジン空冷装置に関するもの
で、特に自動二輪車として操向ハンドル周りの慣性重量
を減じ、操縦性を向上させるため、前フェンダ−を前後
に分割し、前方の部材を前フオークに固定して、前車輪
と共に左右に転向するよう構成すると共に、後方の部材
を車体枠へ固定的に取付けるものに好適なエンジン空冷
装置に関する。DETAILED DESCRIPTION OF THE INVENTION This invention relates to an engine air cooling system for a motorcycle, and in particular for a motorcycle, in order to reduce the inertial weight around the steering handle and improve maneuverability, the front fender is divided into front and rear parts. The present invention relates to an engine air cooling system suitable for an engine air cooling system in which a front member is fixed to a front fork so as to turn left and right together with the front wheels, and a rear member is fixedly attached to a vehicle body frame.
一般に自動二輪車は、前車輪の直後にエンジンを搭載し
、車両の走行によって生じる走行風にょジエンジンを冷
却する構成となっている。Generally, a motorcycle has an engine mounted immediately behind the front wheel, and is configured to cool the engine due to the wind generated when the vehicle is running.
然しなから、前記前７エンダーを前後に分割し、エンジ
ンの前方に固定フェンダ−を配置した車両では、前車輪
が跳ねる泥土が、車輪の転向にょシ左右に広く跳ね上げ
られても、それがエンジンに付着しないように、エンジ
ンの前面に設置される前記固定フェンダ−の幅を大きく
しである。このためエンジンに作用する走行風の風量が
減じることになる。その結果、冷却フィンを大型化した
シ、エンジンを水冷化するなど冷却性能を向上させる必
要が生じる。これはエンジンの構造を複雑にしたシ、重
量を大きくする原因となる。However, in a vehicle where the front 7-ender is divided into front and rear parts and a fixed fender is placed in front of the engine, even if the mud thrown by the front wheels is thrown up widely to the left and right as the wheels turn, it will not be affected. The width of the fixed fender installed in front of the engine is increased to prevent it from adhering to the engine. Therefore, the amount of running air acting on the engine is reduced. As a result, it becomes necessary to improve cooling performance by increasing the size of the cooling fins and water-cooling the engine. This complicates the structure of the engine and increases its weight.
この発明は以上の不具合を解決することを目的とするも
ので、前車輪のフェンダ−の後部両側面に、エンジンへ
向かって走行風を案内する導風板を設けた点に特徴があ
る。This invention aims to solve the above-mentioned problems, and is characterized in that wind guide plates are provided on both sides of the rear of the front wheel fender to guide the running air toward the engine.
以下、これを図示の実施例によって説明する。This will be explained below with reference to illustrated embodiments.
図中１は自動二輪車であり、前車輪２の直後に空冷エン
ジン３を搭載している。３ａはエンジン３の外面に設け
た冷却フィンである。４は前車輪２を支持するテレスコ
ピック形の前フオークであシ、車体枠５の前端の操向軸
管に左右転向自在に枢支されている。前車輪２の上方に
は前フェンダ−６が設けられている。前フェンダ−６は
一般のものと相違しておシ、前フオーク４の前方にステ
ー４ａで取付けられて前車輪２と共に左右転向自在の可
動フェンダ−６ａと、車体枠５の前方下面に取付けられ
た合成樹脂製の固定フェンダ−６ｂとからなっている。In the figure, 1 is a motorcycle, and an air-cooled engine 3 is mounted immediately behind a front wheel 2. 3a is a cooling fin provided on the outer surface of the engine 3. A telescopic front fork 4 supports the front wheel 2, and is pivotally supported on a steering shaft tube at the front end of the vehicle body frame 5 so as to be able to turn left and right. A front fender 6 is provided above the front wheel 2. The front fender 6 differs from the general one in that it has a movable fender 6a that is attached to the front of the front fork 4 with a stay 4a and can be turned left and right together with the front wheel 2, and a movable fender 6a that is attached to the lower front surface of the vehicle body frame 5. and a fixed fender 6b made of synthetic resin.
６ｃは車両の競技番号表示板であり、合成樹脂製の可動
フェンダ−６ａの後方上部に一体的に形成されている。6c is a competition number display board of the vehicle, which is integrally formed at the rear upper part of the movable fender 6a made of synthetic resin.
７は固定フェンダ−６ｂの後部上方に設けられた吸気箱
で、内部にエアクリーナが収容されている。８はエアク
リーナと空冷エンジン３とを連結する吸気管、８１Ｌは
気化器である。Reference numeral 7 denotes an intake box provided above the rear part of the fixed fender 6b, and an air cleaner is housed inside. 8 is an intake pipe connecting the air cleaner and the air-cooled engine 3, and 81L is a carburetor.
前記固定フェンダ−７の下方両側面には、エンジン３の
直前に位置して導風板９が一体的に成形されている。導
風板９は第２図、第３図で示すように、両側面に前面に
向けて大きく開き、後部が狭くなった通気路１０を有す
る。各通気路１０の出口はや＼内側に向けてあシ、前記
空冷エンジン３を指向している。９ａは導風板９を固定
フェンダ−１に連結している支柱である。A baffle plate 9 is integrally formed on both lower side surfaces of the fixed fender 7 and located immediately in front of the engine 3. As shown in FIGS. 2 and 3, the baffle plate 9 has ventilation passages 10 on both sides that are wide open toward the front and narrow at the rear. The outlet of each air passage 10 is directed inward toward the air-cooled engine 3. Reference numeral 9a denotes a support that connects the baffle plate 9 to the fixed fender 1.
実施例の自動二輪車は上記のような導風板９が設置され
ているので、車両が走行すると比較的広い入口で走行風
を受け、比較的狭い出口から高速で空冷エンジン３へ向
けて噴出させる。走行風は空冷エンジン３の表面に形成
された冷却フィン３ａからエンジンの熱を奪い後方へ流
れる。Since the motorcycle of the embodiment is equipped with the air guide plate 9 as described above, when the vehicle runs, the wind is received by the relatively wide entrance, and the wind is blown out at high speed from the relatively narrow exit toward the air-cooled engine 3. . The running wind absorbs engine heat from the cooling fins 3a formed on the surface of the air-cooled engine 3 and flows rearward.
この発明は以上のように、前車輪のフェンダ−の後部両
側にエンジンへ向かって走行風を転流させる導風板を設
けたものである力、為ら、導風板によって方向を転じた
走行風が、エンジンへ向かって高速で吹き付けられ、そ
の表面の冷却フィンからエンジンの熱を奪う。よって、
空冷エンジンの前面に跳ね上げられた泥土がエンジンへ
向かうのを防止する比較的幅の広い固定フェンダ−が設
けら扛ていても、それによって走行風が妨げられること
がなく、良好な冷却が可能であり、エンジン重量を増し
たり、構造を複雑にすることもない等の効果がある。As described above, this invention is a system in which wind guide plates are provided on both sides of the rear of the front wheel fender to divert the running air toward the engine. Wind is blown toward the engine at high speed, drawing heat from the engine through the cooling fins on its surface. Therefore,
A relatively wide fixed fender is installed on the front of the air-cooled engine to prevent dirt thrown up from flying into the engine. Even if the fender is fendered, it does not obstruct the running wind and allows for good cooling. This has the advantage of not increasing the weight of the engine or complicating the structure.
図面はこの発明の一実施例を示すものであり、第１図は
自動二輪車の要部を示す側面図、第２図はそのｎ−■矢
視図、第３図はト１断面図である。
３・・・４冷エンジン、４・・・・前フオーク、６・・
・・前フェンダ−１６ａ・・・・可動フェンダ−１６ｂ
・・・・固定フェンダ−１９・・・・導風板。
特許出願人 ヤマハ発動機株式会社
代理人 山川数例（ｅ肋・１名）The drawings show one embodiment of the present invention, and FIG. 1 is a side view showing the main parts of the motorcycle, FIG. 2 is a view taken along arrow n-■, and FIG. 3 is a sectional view of . 3...4 cold engine, 4...front fork, 6...
...Front fender 16a...Movable fender 16b
... Fixed fender-19 ... Wind guide plate. Patent Applicant: Yamaha Motor Co., Ltd. Agent: Several Yamakawas (e-ri, 1 person)
Claims (1)
自動二輪車において、前記前車輪のフェンダ−の後部両
側にエンジンへ向って走行風を転流させる導風板を設け
てなるエンジン空冷装置。 （２）フェンダ−は前後に分割された二部材からなり、
前方の部材は前フオークに固定され、前車輪と共に転向
するよう構成され、後方の部材は車体枠に固定的に取付
けられている特許請求の範囲第１項記載のエンジン空冷
装置。[Scope of Claims] (11) In a motorcycle equipped with an air-cooled engine between a front wheel and a rear wheel, a wind guide plate is provided on both rear sides of the fender of the front wheel to divert running wind toward the engine. (2) The fender consists of two parts, front and rear,
2. The engine air cooling system according to claim 1, wherein the front member is fixed to the front fork and configured to turn together with the front wheels, and the rear member is fixedly attached to the vehicle body frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214992A JPS59105919A (en) | 1982-12-08 | 1982-12-08 | Air cooling device of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214992A JPS59105919A (en) | 1982-12-08 | 1982-12-08 | Air cooling device of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59105919A true JPS59105919A (en) | 1984-06-19 |
Family
ID=16664902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57214992A Pending JPS59105919A (en) | 1982-12-08 | 1982-12-08 | Air cooling device of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59105919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102149A (en) * | 1996-12-20 | 2000-08-15 | Honda Giken Kogyo Kabushiki Kaisha | Wind deflecting device in a vehicle including a motorcycle |
-
1982
- 1982-12-08 JP JP57214992A patent/JPS59105919A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102149A (en) * | 1996-12-20 | 2000-08-15 | Honda Giken Kogyo Kabushiki Kaisha | Wind deflecting device in a vehicle including a motorcycle |
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