JPS5826683A - Automobile body - Google Patents
Automobile bodyInfo
- Publication number
- JPS5826683A JPS5826683A JP56123209A JP12320981A JPS5826683A JP S5826683 A JPS5826683 A JP S5826683A JP 56123209 A JP56123209 A JP 56123209A JP 12320981 A JP12320981 A JP 12320981A JP S5826683 A JPS5826683 A JP S5826683A
- Authority
- JP
- Japan
- Prior art keywords
- air
- rear part
- vehicle body
- side edges
- along
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D35/00—Vehicle bodies characterised by streamlining
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、車体の前面部内において取入れた空気を空気
案゛内路により車体内の後方まで導き、車体の後面部の
外表面に沿って後方に噴出させることにより、車体の後
面部の外表面上の空気の境界層の剥れを防止し、自動車
の空気抵抗を軽減するようにした自動車の車体に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention allows air taken into the front part of the vehicle body to be guided to the rear of the vehicle body through an air guide path, and then blown out rearward along the outer surface of the rear part of the vehicle body. The present invention relates to a vehicle body that prevents separation of the boundary layer of air on the outer surface of the rear surface of the vehicle and reduces air resistance of the vehicle.
自動車の空気抵抗の減少は燃料消費率の改善に好影響を
与えるため、従来より、空気抵抗を減少させるための種
々の外形輪郭を備えた自動車の車体が提案されてきた。Since a reduction in air resistance of an automobile has a positive effect on improving fuel consumption, automobile bodies having various external contours for reducing air resistance have been proposed.
空気抵抗が少ない車体形状ｐｉ、一般に流線型化された
外形輪郭を有する車体形状であって、このような車体形
状を有する自動車が前進すると、車体に対して相対的に
発生した空気流は、車体の前面部の外表面から屋根部の
外表面を経て、更に後面部の外表面へと流れる。しかし
、車体の外形輪郭上の多くの改善努力にもがかわらず、
一般に車体の後面部の外表面に沿う空気の境界層は剥離
し易く、車体の後面部の外表面上の空気の境界層が剥離
すると、車体の後面部の外表面上には渦が生起されて車
体に対する誘導抵抗が生じ、この誘′導抵抗によって車
体の空気抵抗は一段と増加する。When a car with a car body shape pi that has low air resistance, generally a streamlined external contour, moves forward, the air flow generated relative to the car body is It flows from the outer surface of the front section, through the outer surface of the roof section, and further to the outer surface of the rear section. However, despite many efforts to improve the contours of the car body,
In general, the boundary layer of air along the outer surface of the rear part of the car body tends to separate, and when the boundary layer of air on the outer surface of the rear part of the car body separates, vortices are generated on the outer surface of the rear part of the car body. This causes induced resistance to the vehicle body, and this induced resistance further increases the air resistance of the vehicle body.
そこで本発明の主な目的は、車体の後面部の外表面に沿
う空気の境界層に空気流を付加して境界層を積極的に維
持し、車体の後面部の外表面上における渦の発生を防止
して、自動車の速度上昇に伴なう空気抵抗の増加を抑制
し、燃料消費率の低減を図ることができるような自動車
の車体を提供することである。Therefore, the main object of the present invention is to actively maintain the boundary layer by adding air flow to the boundary layer of air along the outer surface of the rear surface of the vehicle body, and to generate vortices on the outer surface of the rear surface of the vehicle body. It is an object of the present invention to provide a vehicle body that can suppress an increase in air resistance due to an increase in the speed of the vehicle and reduce fuel consumption.
以下、図面により本発明の一実施例について説明する。An embodiment of the present invention will be described below with reference to the drawings.
先ず第１図ないし第５図において、車体１は前面部２と
、屋根部３と、後面部４とを有し、前面部２内には、フ
ロントグリル部５から前面部２内に流入した空気を取入
れるだめの空気取入０１６が配設されている。この空気
取入０１６は、前面部２側の左右一対の側柱部６．６′
および屋根部３の左右側縁部７，７′を経て車体１の後
方部まで延在する空気案内路１７に連通している。First, in FIGS. 1 to 5, a vehicle body 1 has a front section 2, a roof section 3, and a rear section 4. An air intake 016 for taking in air is provided. This air intake 016 is connected to a pair of left and right side pillars 6.6' on the front part 2 side.
It also communicates with an air guide path 17 extending through the left and right side edges 7, 7' of the roof portion 3 to the rear portion of the vehicle body 1.
第４図および第５図におり・て一層詳細に示されている
ように、屋根部３の後端縁部には、空気案内路１７に連
通し、後面部４の後部外壁１１の外表面に向けて開口す
る細隙開口部１５を備えた細隙開口形成部材１４が装着
されていると共に、左右の側部外壁ｉ０．．１０’の上
方後縁部には、空気案内路１７に連通し、後面部４の後
部外壁１１の外表面に向けて開口する細隙開口部１３を
備えた細隙開口形成部材１２が装着されており、空気案
内路１７ＶＣより案内された空気が、後面部４の上縁部
８および左右側縁部９．ぎょっ、後面部４の外表面に沿
って後方に噴出されるようになっている。As shown in more detail in FIGS. 4 and 5, the rear edge of the roof section 3 has an air guide passage 17 connected to the outer surface of the rear outer wall 11 of the rear section 4. A slit opening forming member 14 having a slit opening 15 opening toward the left and right side outer walls i0. ．． A slit opening forming member 12 having a slit opening 13 that communicates with the air guide path 17 and opens toward the outer surface of the rear outer wall 11 of the rear surface section 4 is attached to the upper rear edge of the rear section 10'. The air guided from the air guide path 17VC is directed to the upper edge 8 and left and right side edges 9. of the rear surface portion 4. It is designed to be ejected backwards along the outer surface of the rear surface part 4.
図示された実施例は以上のように構成されているので、
自動車が前進すると、フロントグリル部５より前面部２
内に流入した空気は、空気取入口１６において空気案内
路１７内に取入れられ、側柱部６．６′および屋根部３
の左右側縁部７，７′を経て、後面部４の上縁部８およ
び左右側縁部９゜デより、後面部４の外表面に沿って後
方に噴出される。一方、車体１の前面部２の外表面から
屋根部３の外表面を経て、後面部４の外表面上に達した
空気の流れは、後面部４の上級部８および左右側縁部９
，９′より噴出する空気により加圧されて、後面部４の
外表面に沿って境界層を維持しつつ、渦を生成すること
なく滑らかに後方へと流れ出る。Since the illustrated embodiment is configured as described above,
When the car moves forward, the front grille 5
The air flowing into the interior is taken into the air guide path 17 at the air intake port 16, and is passed through the side columns 6.6' and the roof section 3.
It is ejected rearward along the outer surface of the rear surface section 4 from the upper edge section 8 and the left and right side edges 9 degrees of the rear surface section 4 through the left and right side edges 7 and 7'. On the other hand, air flows from the outer surface of the front section 2 of the vehicle body 1 through the outer surface of the roof section 3 and onto the outer surface of the rear section 4.
, 9', the air flows smoothly rearward without generating a vortex while maintaining a boundary layer along the outer surface of the rear surface portion 4.
細隙開口形成部材１２．１４は、いずれも例えば合成樹
脂のような軽量材料により成型されたものであって良い
。Each of the slit opening forming members 12, 14 may be molded from a lightweight material such as synthetic resin.
以上のように本発明によれば、例えばフロントグリル部
を経て車体の前面部内に流入した空気を前面部内に配設
された空気取入口により取入れるようにしたので、車体
の外形輪郭に何ら悪影響を及ぼすことなく、境界層剥離
防止用空気を効果的に取入れることができる。As described above, according to the present invention, since the air that has flowed into the front surface of the vehicle body through the front grille is taken in through the air intake port provided within the front surface, there is no adverse effect on the external contour of the vehicle body. Air for preventing boundary layer separation can be effectively taken in without causing any adverse effects.
また、空気取入口により取入れられた空気を、前面部側
の側柱部および屋根部の左右側縁部を経て車体内の後方
まで案内する空気案内路により案内するようにしたので
、車体の外形輪郭に悪影響を及ぼすことなく、車体構造
を有効に利用して、境界層剥離防止用空気を車体内の後
方まで案内することができる。In addition, the air taken in by the air intake port is guided by an air guide path that guides it to the rear of the vehicle body through the side pillars on the front side and the left and right edges of the roof. Air for preventing boundary layer separation can be guided to the rear of the vehicle body by effectively utilizing the vehicle body structure without adversely affecting the contour.
更に、空気案内路により案内された空気を、後面部の上
縁部および左右側縁部より、後面部の外表面に沿って後
方に噴出するようにしたので、車体の後面部の外表面に
沿う空気の境界層に空気流を付加して境界層を積極的に
維持し、車体の後面部の外表面上における渦の発生を防
止して、自動車の速度上昇に伴なう空気抵抗の増加を抑
制し、燃料消費率の低減を図ることができるものである
。Furthermore, the air guided by the air guide path is blown out rearward along the outer surface of the rear surface from the upper edge and left and right side edges of the rear surface, so that the air is blown out from the upper edge and left and right side edges of the rear surface along the outer surface of the rear surface of the vehicle. Actively maintains the boundary layer by adding airflow to the boundary layer of air along the vehicle, preventing the formation of vortices on the outer surface of the rear of the vehicle, which increases air resistance as the vehicle speed increases. It is possible to suppress this and reduce the fuel consumption rate.
第１図は本発明の一実施例に基づく自動車の車体の要部
断面平面図、第２図は第１図の車体の要部断面側面図、
第３図は第１図の車体の後面図、第４図は第３図のＴＶ
−ＴＶ線に？ｉ＝？５要部拡大断面図、第５図は第３図
のＶ−Ｖａに沿う要部拡大断面図である。
１・・・車体、２・・・前面部、３・・・屋根部、４・
・・後面部、６，６′・・・側柱部、７．γ・・・屋根
部の側縁部、８・・・後面部の上縁部、９．９′・・・
後面部の側縁部、１３．１５・・・細隙開口部、１６・
・・空気取入口、１７・・・空気案内路FIG. 1 is a cross-sectional plan view of a main part of an automobile body according to an embodiment of the present invention, FIG. 2 is a cross-sectional side view of a main part of the car body of FIG.
Figure 3 is a rear view of the vehicle body in Figure 1, Figure 4 is the TV in Figure 3.
-To the TV line? i=? 5 is an enlarged cross-sectional view of the main parts taken along the line V-Va in FIG. 3. 1... Vehicle body, 2... Front part, 3... Roof part, 4...
... Rear part, 6, 6'... Side pillar part, 7. γ...Side edge of roof, 8...Upper edge of rear surface, 9.9'...
Side edge of rear part, 13.15... Slit opening, 16.
...Air intake port, 17...Air guide path
Claims (1)
面部（２）の外表面から屋根部（３）の外表面を経て、
更に後面部（４）の外表面に向けて、前記車体（１）に
対して相対的に生じるような外形輪郭を有する車体にお
いて、前記車体（１）の前面部（２）内に流入した空気
を前記前面部（２）内において取入れるための空気取入
口（１６）と、この空気取入口（１６）により取入れら
れた空気を、前記前面部（２）側の側柱部（６，６’）
および前記屋根部（３）の左右側縁部（７，７’）を経
て、前記車体（１）内の後方まで案内する空気案内路（
１７）と、この空気案内路（１７）により案内された空
気を、前記後面部（４）の上縁部（８）および左右側縁
部（９、９’）より、前記後面部（４）の外表面上の空
気の境界層の剥れを防止するようにして、前記後面部（
４）の外表面に沿って後方に噴出させるための細隙開口
部（１３゜。 １５）とを備えた自動車の車体。[Claims] As the vehicle moves forward, a continuous air flow passes from the outer surface of the front part (2) of the vehicle body (1) to the outer surface of the roof part (3),
Furthermore, in a vehicle body having an external contour that occurs relative to the vehicle body (1) toward the outer surface of the rear surface portion (4), air flowing into the front surface (2) of the vehicle body (1) an air intake port (16) for taking in air into the front section (2); ')
and an air guide path (guiding to the rear inside the vehicle body (1) through the left and right side edges (7, 7') of the roof (3)).
17), and the air guided by this air guide path (17) is transferred from the upper edge (8) and left and right side edges (9, 9') of the rear surface part (4) to the rear surface part (4). said rear section (
4) A car body having a slit opening (13°. 15) for discharging the liquid to the rear along the outer surface of the car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56123209A JPS5826683A (en) | 1981-08-06 | 1981-08-06 | Automobile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56123209A JPS5826683A (en) | 1981-08-06 | 1981-08-06 | Automobile body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5826683A true JPS5826683A (en) | 1983-02-17 |
| JPH0156947B2 JPH0156947B2 (en) | 1989-12-01 |
Family
ID=14854891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56123209A Granted JPS5826683A (en) | 1981-08-06 | 1981-08-06 | Automobile body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826683A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560271A (en) * | 1982-04-08 | 1985-12-24 | Tokyo Kogaku Kikai Kabushiki Kaisha | Optical distance-measuring method and apparatus therefor |
| JPH01106354U (en) * | 1988-01-11 | 1989-07-18 | ||
| GR910100368A (en) * | 1991-09-04 | 1993-06-21 | Georgios Vlachos | Air-duct on the rear end of the car for the improvement of its aerodynamics |
| FR2744689A1 (en) * | 1996-02-08 | 1997-08-14 | Onera (Off Nat Aerospatiale) | Device for reducing aerodynamic noise of motor vehicle bodywork |
-
1981
- 1981-08-06 JP JP56123209A patent/JPS5826683A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560271A (en) * | 1982-04-08 | 1985-12-24 | Tokyo Kogaku Kikai Kabushiki Kaisha | Optical distance-measuring method and apparatus therefor |
| JPH01106354U (en) * | 1988-01-11 | 1989-07-18 | ||
| GR910100368A (en) * | 1991-09-04 | 1993-06-21 | Georgios Vlachos | Air-duct on the rear end of the car for the improvement of its aerodynamics |
| FR2744689A1 (en) * | 1996-02-08 | 1997-08-14 | Onera (Off Nat Aerospatiale) | Device for reducing aerodynamic noise of motor vehicle bodywork |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0156947B2 (en) | 1989-12-01 |
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