JPH08158967A - Intake device of vehicle - Google Patents

Intake device of vehicle

Info

Publication number
JPH08158967A
JPH08158967A JP30406494A JP30406494A JPH08158967A JP H08158967 A JPH08158967 A JP H08158967A JP 30406494 A JP30406494 A JP 30406494A JP 30406494 A JP30406494 A JP 30406494A JP H08158967 A JPH08158967 A JP H08158967A
Authority
JP
Japan
Prior art keywords
intake
intake duct
engine
air
vehicle
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
Application number
JP30406494A
Other languages
Japanese (ja)
Inventor
Hiroyuki Hiyousako
裕之 表迫
Kuni Yuki
久仁 結城
Satoshi Kawajiri
悟司 川尻
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.)
UD Trucks Corp
Mahle Filter Systems Japan Corp
Original Assignee
UD Trucks Corp
Mahle Filter Systems Japan Corp
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 UD Trucks Corp, Mahle Filter Systems Japan Corp filed Critical UD Trucks Corp
Priority to JP30406494A priority Critical patent/JPH08158967A/en
Publication of JPH08158967A publication Critical patent/JPH08158967A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the intake noise of engines different in its capacity by the parts of the same form by providing a resonating chamber integrally with the outside of an intake duct, connecting the resonating chamber to the intake duct by a communicating hole, boring the communicating holes of the number and position adapted to the displacement of an engine and the cylinder number. CONSTITUTION: An intake duct 1 and an air cleaner 2 are connected to each other by a bellows hose 4 and an inlet pipe 5, and the air cleaner 2 is connected to an intake manifold of an engine through an outlet pipe 6. In this case, resonating chambers 10a, 10b different in capacity are formed integrally with the intake duct 1 on the right and left outside of the intake duct 1. 1 to 10 communicating holes 12a-12n of the number and position adapted to the displacement of an engine and the cylinder number are bored in the binding parts 11a, 11b between the intake duct 1 and each resonating chamber 10a, 10b, whereby the intake duct 1 and the right and left resonating chambers 10a, 10b are connected and communicated with each other by the communicating holes 12a-12n.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、車両のエンジンに空気
を導入する車両の吸気装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle intake system for introducing air into a vehicle engine.

【0002】[0002]

【従来の技術】通常、車両には、キャブの後部に、図8
に示すようにエンジンに空気を導入する吸気装置が設け
られている(例えば、実開平3−82627号公報)。
その吸気装置は、キャブ20の後部にブラケット21に
より吸気ダクト22が固定され、その吸気ダクト22に
ジャバラホース24,インレットパイプ25を介して車
体側に固定したエアクリーナ23が連結され、エアクリ
ーナ23に、エンジン(図示せず)側に連結するアウト
レットパイプ26が設けられた構成になっている。
2. Description of the Related Art Normally, a vehicle has a rear portion of a cab shown in FIG.
As shown in FIG. 3, an intake device for introducing air into the engine is provided (for example, Japanese Utility Model Laid-Open No. 3-82627).
In the intake device, an intake duct 22 is fixed to a rear portion of a cab 20 by a bracket 21, and an air cleaner 23 fixed to a vehicle body side is connected to the intake duct 22 via a bellows hose 24 and an inlet pipe 25, and an air cleaner 23 is connected to the air cleaner 23. An outlet pipe 26 connected to the engine (not shown) side is provided.

【0003】また、前記吸気ダクト22の吸入口27が
開口する上端部には、ブラケット28を介してキャブ2
0に固定されたレインキャップ29が冠着されている。
そして、レインキャップ29の下方に向けた空気取入口
30からエア吸気装置内に空気を取り入れ、エアクリー
ナ23で浄化し、浄化した空気をエンジンに導入してい
る。
The upper end of the intake duct 22 where the intake port 27 is opened is provided with a cab 2 via a bracket 28.
A rain cap 29 fixed to 0 is worn.
Then, air is taken into the air intake device from the air intake port 30 directed downward of the rain cap 29, purified by the air cleaner 23, and the purified air is introduced into the engine.

【0004】ところで、前記吸気装置で空気を取り込む
際に、吸気騒音が発生するが、この対策として、従来例
えば、図9に示すように空気ダクト22の内外に管状の
共鳴室31,32を設けて吸気騒音を低減している。
By the way, intake noise is generated when air is taken in by the intake device. As a countermeasure against this, conventionally, for example, tubular resonance chambers 31 and 32 are provided inside and outside the air duct 22 as shown in FIG. Reduce intake noise.

【0005】[0005]

【発明が解決しようとする課題】然し乍ら、上述の吸気
装置では、同一車両系であっても、排気量及び気筒数が
異なるエンジンを搭載すると、音の発生源であるエンジ
ンの爆発順序,気筒数等が異なるので、それぞれ異なる
周波数の吸気騒音が発生する。従って、吸気騒音を低減
するには、エンジンの排気量及び気筒数が異なる毎にそ
のエンジンに適応する共鳴室(レゾネータ)に変える必
要があった。
However, in the above-described intake system, if engines having different displacements and the same number of cylinders are mounted in the same vehicle system, the explosion order of the engine, which is the source of sound, and the number of cylinders. The intake noises of different frequencies are generated. Therefore, in order to reduce the intake noise, it is necessary to change to a resonance chamber (resonator) adapted to the engine each time the engine displacement and the number of cylinders differ.

【0006】そのために、エンジンの排気量及び気筒の
異なる毎に、形状の異なる数多くの部品を製造する必要
があり、また吸気装置の外観形状も変わって統一上好ま
しくない。また、コスト的にも、不利である。本発明
は、上記に鑑みて案出されたもので、排気量及び気筒数
の異なるエンジンに共用できるようにして部品数を低減
すると共に外観形状の統一を図り、また発生するそれぞ
れ異なる周波数の吸気騒音を有効に低減するキャブ車両
のエンジン吸気装置を提供することを目的とする。
Therefore, it is necessary to manufacture a large number of parts having different shapes for different engine displacements and cylinders, and the external shape of the intake device also changes, which is unfavorable in terms of uniformity. Also, it is disadvantageous in terms of cost. The present invention has been devised in view of the above, and can be shared by engines having different displacements and number of cylinders to reduce the number of parts and to unify the external shape, and to generate intake air of different frequencies. An object is to provide an engine intake system for a cab vehicle that effectively reduces noise.

【0007】[0007]

【課題を解決するための手段】前記目的を達成するため
の請求項1の発明は、キャブの後部にエンジンに空気を
導入する吸入口が設けられた吸気ダクトを固定し、その
吸気ダクトの上端部にレインキャップを冠着し、前記吸
気ダクトに吸気騒音を低減する共鳴室を設けた車両の吸
気装置において、上記吸気ダクトの外部に一体に共鳴室
を設け、その共鳴室と吸気ダクト間を連通孔で連結し、
その連通孔を搭載したエンジンの排気量及び気筒数に適
応する数及び位置に穿設してなることを特徴とする。
In order to achieve the above object, the invention according to claim 1 fixes an intake duct provided with an intake port for introducing air into an engine at a rear portion of a cab, and an upper end of the intake duct. In a vehicle air intake device in which a resonance cap for reducing intake noise is provided in the intake duct, a resonance chamber is integrally provided outside the intake duct, and a space between the resonance chamber and the intake duct is provided. Connect with communication holes,
It is characterized in that the communication holes are provided at a number and a position corresponding to the displacement and the number of cylinders of the engine having the communication holes.

【0008】請求項2の発明は、キャブの後部にエンジ
ンに空気を導入する吸入口が設けられた吸気ダクトを固
定し、その吸気ダクトの上端部にレインキャップを冠着
し、前記吸気ダクトに吸気騒音を低減する共鳴室を設け
た車両の吸気装置において、上記吸気ダクトの左右外部
に一体に容量の異なる共鳴室を設け、その左右の共鳴室
と吸気ダクト間をそれぞれ連通孔で連結し、その連通孔
を搭載したエンジンの排気量及び気筒数に適応する数及
び位置に穿設してなることを特徴とする。
According to a second aspect of the present invention, an intake duct having an intake port for introducing air into the engine is fixed to the rear portion of the cab, and a rain cap is attached to the upper end of the intake duct, and the intake duct is attached to the intake duct. In an intake device for a vehicle having a resonance chamber for reducing intake noise, resonance chambers having different capacities are integrally provided on the left and right outside of the intake duct, and the left and right resonance chambers and the intake duct are connected by communication holes, respectively. It is characterized in that the communication holes are provided at a number and a position corresponding to the displacement and the number of cylinders of the engine having the communication holes.

【0009】請求項3の発明は、上記レインキャップ
は、車両の側面に向けて空気取入口が開口し、その空気
取入口にルーバが装着してなるものである。
According to a third aspect of the present invention, in the rain cap, the air intake is opened toward the side surface of the vehicle, and the louver is attached to the air intake.

【0010】[0010]

【作用】請求項1及び2の発明によれば、共鳴室と吸気
ダクト間を連通孔で連結し、その連通孔を搭載したエン
ジンの排気量及び気筒数に適応する数及び位置に穿設し
たので、排気量及び気筒数の異なるエンジンの吸気騒音
の低減を同一形状の部品で行える。
According to the first and second aspects of the present invention, the resonance chamber and the intake duct are connected by a communication hole, and the communication hole is formed in a number and a position corresponding to the displacement and the number of cylinders of the engine equipped with the communication hole. Therefore, intake noise of engines having different displacements and number of cylinders can be reduced with the same shaped parts.

【0011】請求項2の発明によれば、吸気ダクトの左
右外部に容量の異なる共鳴室を設けたので、容量の異な
る共鳴室がそれぞれ異なる周波数の吸気騒音を低減す
る。また、請求項3の発明によれば、レインキャップの
空気取入口にルーバを装着したので、ルーバにより空気
取入口からの雨水が吸気装置内に浸入し難くなる。
According to the second aspect of the present invention, since the resonance chambers having different capacities are provided outside the left and right sides of the intake duct, the resonance chambers having different capacities reduce intake noise of different frequencies. According to the third aspect of the present invention, since the louver is attached to the air intake port of the rain cap, rainwater from the air intake port does not easily enter the intake device by the louver.

【0012】[0012]

【実施例】以下、図面に基づき、本発明を説明する。図
1は、請求項2の発明の一実施例である。この実施例の
車両の吸気装置は、前述の図8に示したものと同様にキ
ャブの後方に設けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is an embodiment of the invention of claim 2. The intake device for the vehicle of this embodiment is provided at the rear of the cab similarly to that shown in FIG.

【0013】図において、1は空気を導入する吸気ダク
ト,2は空気を浄化するエアクリーナである。吸気ダク
ト1はブラケット3を介してキャブKに固定され、エア
クリーナ2はブラケット等で車体に固定されている。吸
気ダクト1とエアクリーナ2の間は、相互間の振動を吸
収するジャバラホース4とインレットパイプ5で連結さ
れている。
In the figure, 1 is an intake duct for introducing air, and 2 is an air cleaner for purifying the air. The intake duct 1 is fixed to the cab K via a bracket 3, and the air cleaner 2 is fixed to the vehicle body by a bracket or the like. The intake duct 1 and the air cleaner 2 are connected by a bellows hose 4 and an inlet pipe 5 that absorb mutual vibrations.

【0014】エアクリーナ2には、アウトレットパイプ
6が連結され、アウトレットパイプ6は、エンジンの吸
気マニホールドに連結している。一方、吸気ダクト1の
上端部には、吸入口7が開口し、その吸入口7が開口す
る上端部には、キャブKにブラケット(図示せず)を介
して固定されたレインキャップ9が冠着されている。
尚、8は、そのブラケットにねじ止めする取付孔であ
る。
An outlet pipe 6 is connected to the air cleaner 2, and the outlet pipe 6 is connected to an intake manifold of the engine. On the other hand, an intake port 7 is opened at the upper end of the intake duct 1, and a rain cap 9 fixed to the cab K via a bracket (not shown) is capped at the upper end where the intake port 7 is opened. It is worn.
In addition, 8 is a mounting hole screwed to the bracket.

【0015】前記吸気ダクト1の左右外部には、図2に
示すように容量の異なる共鳴室10a,10bが吸気ダ
クト1に一体に設けられている。吸気ダクト1と共鳴室
10a,10bは、例えば、樹脂のブロー成形により一
体に形成されている。即ち、図6に示すようにその中心
に設けられた矩形筒状の吸気ダクト1の左右に、括れ部
11a,11bを介して変形された矩形状の共鳴室10
a,10bが設けられている。
As shown in FIG. 2, resonance chambers 10a and 10b having different capacities are integrally provided in the intake duct 1 outside the intake duct 1 as shown in FIG. The intake duct 1 and the resonance chambers 10a and 10b are integrally formed by, for example, resin blow molding. That is, as shown in FIG. 6, the rectangular resonance chamber 10 which is deformed via the constricted portions 11a and 11b to the left and right of the rectangular cylindrical intake duct 1 provided at the center thereof.
a and 10b are provided.

【0016】そして、吸気ダクト1と左右の共鳴室10
a,10bとの間の括れ部11a,11bには、車両に
搭載するエンジンの異なる排気量及び気筒数に適応した
数及び位置に、図2〜図4に示すように1乃至10数個
の連通孔12a〜12nが穿設されて、吸気ダクト1と
左右の共鳴室10a,10b間が連結されている。この
連通孔12a〜12nは、搭載されたエンジンの排気量
及び気筒数に適応させて括れ部11a,11bに設けら
れている。
The intake duct 1 and the left and right resonance chambers 10
In the constricted portions 11a and 11b between the a and 10b, the numbers and positions corresponding to different displacements and the number of cylinders of the engine mounted on the vehicle are set to 1 to 10 or more as shown in FIGS. Communication holes 12a to 12n are formed to connect the intake duct 1 and the left and right resonance chambers 10a and 10b. The communication holes 12a to 12n are provided in the constricted portions 11a and 11b in accordance with the displacement of the mounted engine and the number of cylinders.

【0017】図2は、括れ部11aと括れ部11bの最
下にそれぞれ連通孔12g,12nが穿設された場合で
ある。この場合は、共鳴室10aが95Hz,共鳴室1
0bが87Hzの共鳴周波数特性となり、排気量が約7
リットル,6気筒のエンジンに用いられる。図3は、括
れ部11aと括れ部11bにそれぞれ連通孔12e,1
2f,12gと12nが穿設された場合である。
FIG. 2 shows a case where communication holes 12g and 12n are provided at the bottom of the constricted portion 11a and the constricted portion 11b, respectively. In this case, the resonance chamber 10a is 95 Hz, the resonance chamber 1
0b has a resonance frequency characteristic of 87 Hz, and the displacement is about 7
Used in liter, 6-cylinder engines. FIG. 3 shows that the constricted portion 11a and the constricted portion 11b have communication holes 12e and 1e, respectively.
This is the case where 2f, 12g and 12n are drilled.

【0018】この場合は、共鳴室10aが124Hz,
共鳴室10bが87Hzの共鳴周波数特性となり、排気
量が約16リットル,8気筒のエンジンに用いられる。
図4は、括れ部11aに12a,12b,12c,12
d,12e,12f,12gが、括れ部11bに12
h,12i,12j,12k,12l,12m,12n
がそれぞれ穿設された場合である。
In this case, the resonance chamber 10a has a frequency of 124 Hz,
The resonance chamber 10b has a resonance frequency characteristic of 87 Hz, and is used for an engine having a displacement of about 16 liters and 8 cylinders.
FIG. 4 shows that the constricted portion 11a includes 12a, 12b, 12c, 12
d, 12e, 12f, 12g are 12 in the constricted portion 11b.
h, 12i, 12j, 12k, 12l, 12m, 12n
Are drilled respectively.

【0019】この場合は、共鳴室10aが192Hz,
共鳴室10bが195Hzの共鳴周波数特性となり、排
気量が約20リットル,10気筒のエンジンに用いられ
る。前記エンジンの排気量及び気筒数に適応させて括れ
部11aと括れ部11bに穿設する連通孔は、部分的に
成形型を差し換えることによる樹脂のブロー成形によ
り、吸気ダクト1と左右の共鳴室10a,10bを一体
に成形する際に同時に穿設することができる。
In this case, the resonance chamber 10a has 192 Hz,
The resonance chamber 10b has a resonance frequency characteristic of 195 Hz and is used for an engine having a displacement of about 20 liters and 10 cylinders. The communication holes formed in the constricted portions 11a and 11b according to the engine displacement and the number of cylinders are blow-molded with a resin by partially replacing the molding die, thereby causing resonance between the intake duct 1 and the left and right. The chambers 10a and 10b can be formed at the same time when they are integrally molded.

【0020】左右の共鳴室10a,10bが設けられた
吸気ダクト1上端部には、前記レインキャップ9が冠着
されているが、このレインキャップ9も、樹脂のブロー
成形により形成されている。そして、レインキャップ9
は、吸気ダクト1の上端部に冠着してリベット13で吸
気ダクト1側とレインキャップ9が結合され、更にレイ
ンキャップ9がキャブKにブラケットを介して固定され
ている。
The rain cap 9 is capped on the upper end of the intake duct 1 where the left and right resonance chambers 10a and 10b are provided, and the rain cap 9 is also formed by blow molding of resin. And rain cap 9
Is attached to the upper end of the intake duct 1 by a rivet 13 to connect the intake duct 1 side and the rain cap 9, and the rain cap 9 is fixed to the cab K via a bracket.

【0021】そのレインキャップ9は、キャブ車両の側
面に向かって空気取入口14が開口し、その空気取入口
14には、図5に示すように板片を等しい間隔で斜め下
方向に向けて配置したルーバ15が設けられて雨水が吸
気ダクト1内へ浸入しないようになっている。次に、上
記実施例の作用を説明する。
The rain cap 9 has an air intake port 14 opening toward the side surface of the cab vehicle, and plate pieces are directed to the air intake port 14 obliquely downward at equal intervals as shown in FIG. Arranged louvers 15 are provided to prevent rainwater from entering the intake duct 1. Next, the operation of the above embodiment will be described.

【0022】前記レインキャップ9のルーバ15が設け
られた空気取入口14から取り入れた空気は、吸気ダク
ト1の上端の吸入口7から吸気ダクト1内に導入され
る。吸気ダクト1内に導入された空気は、吸気ダクト1
からジャバラホース4,インレットパイプ5を通ってエ
アクリーナ2に導かれて、空気はエアクリーナ2内で浄
化され、浄化された空気は、エアクリーナ2からアウト
レットパイプ6,吸気マニホールドを通ってエンジンに
導かれる。
The air taken in from the air intake 14 provided with the louver 15 of the rain cap 9 is introduced into the intake duct 1 from the intake port 7 at the upper end of the intake duct 1. The air introduced into the intake duct 1 is
The air is purified from the air cleaner 2 through the bellows hose 4 and the inlet pipe 5 to the air cleaner 2, and the purified air is guided from the air cleaner 2 to the engine through the outlet pipe 6 and the intake manifold.

【0023】そして、空気をエンジン吸気装置を通して
エンジンに導入する際、発生する吸気騒音を、吸気ダク
ト1の左右に設けられた共鳴室10a,10bによる共
鳴消音作用により低減する。吸気ダクト1と共鳴室10
a,10bとの間には、図2〜図4に示すように搭載さ
れたエンジンの排気量及び気筒数に適応した数及び位置
に連通孔12a〜12nが穿設されているので、吸気ダ
クト1と共鳴室10a,10bとの全体外観形状を同一
形状にした状態で異なる排気量及び気筒数のエンジンの
吸気騒音を低減できる。
The intake noise generated when air is introduced into the engine through the engine intake device is reduced by the resonance silencing effect of the resonance chambers 10a and 10b provided on the left and right of the intake duct 1. Intake duct 1 and resonance chamber 10
As shown in FIGS. 2 to 4, communication holes 12a to 12n are formed between a and 10b at a number and position corresponding to the displacement and the number of cylinders of the mounted engine. It is possible to reduce intake noise of an engine having different displacements and different numbers of cylinders in the state where the external appearance shapes of the first and the resonance chambers 10a and 10b are the same.

【0024】つまり、外観形状を統一(同一形状の部品
に)して排気量及び気筒数の異なるエンジンに共用でき
ると共に、発生するそれぞれ異なる周波数の吸気騒音を
有効に低減することができる。本実施例の場合において
は、吸気ダクト1の左右外部に容量の異なる共鳴室10
a,10bを設けたので、それぞれ異なる共鳴消音作用
よって異なる周波数の吸気騒音をより正確に低減でき
る。
That is, it is possible to unify the external shape (to make the parts of the same shape) common to the engines having different displacements and the number of cylinders, and it is possible to effectively reduce the generated intake noise of different frequencies. In the case of the present embodiment, the resonance chambers 10 having different capacities are provided on the left and right outside of the intake duct 1.
Since a and 10b are provided, it is possible to more accurately reduce intake noise of different frequencies due to different resonance silencing effects.

【0025】また、吸気ダクト1と共鳴室10a,10
bは、樹脂のブロー成形により一体に設けるようにした
ので、吸気装置の製造が容易になる。更にまた、排気量
及び気筒数の異なるエンジン毎に形状の異なる数多くの
部品を製造する必要がなくなり、製造容易とが相俟って
製造コストが大幅に低減できる。
Further, the intake duct 1 and the resonance chambers 10a, 10
Since b is integrally formed by resin blow molding, the manufacture of the intake device is facilitated. Furthermore, it is not necessary to manufacture a large number of parts having different shapes for each engine having a different displacement and number of cylinders, and in combination with the ease of manufacturing, the manufacturing cost can be greatly reduced.

【0026】上記実施例は、吸気ダクト1の左右外部に
それぞれ共鳴室10a,10bが設られているが、図7
に示すように吸気ダクト1の外部に一つの共鳴室10c
を設け、吸気ダクト1と共鳴室10c間の括れ部11c
に連通孔12a〜12gを穿設してもよい(請求項
1)。この場合、上記実施例よりも吸気騒音の低減が少
ないが、前記実施例と同様有効である。
In the above embodiment, the resonance chambers 10a and 10b are provided on the left and right outside of the intake duct 1, respectively.
One resonance chamber 10c is provided outside the intake duct 1 as shown in FIG.
And a constricted portion 11c between the intake duct 1 and the resonance chamber 10c.
The communication holes 12a to 12g may be bored in the above (claim 1). In this case, the reduction of intake noise is smaller than that in the above-mentioned embodiment, but it is effective as in the above-mentioned embodiment.

【0027】[0027]

【発明の効果】以上説明した如く請求項1,2の発明に
よれば、排気量及び気筒数の異なるエンジンの吸気騒音
を同一形状の部品で低減することができる。そして、全
体外観形状を統一して異なった排気量及び気筒数のエン
ジンを搭載した車両に共用できると共に、発生するそれ
ぞれ異なる周波数の吸気騒音を有効に低減することがで
きる。
As described above, according to the inventions of claims 1 and 2, it is possible to reduce intake noise of engines having different displacements and the number of cylinders with the same shaped parts. In addition, it is possible to unify the overall appearance shape and share it with a vehicle equipped with an engine having a different displacement and a different number of cylinders, and it is possible to effectively reduce the generated intake noise of different frequencies.

【0028】また、請求項2の発明によれば、搭載した
異なる排気量及び気筒数のエンジンから発生するそれぞ
れ異なる周波数の吸気騒音をより正確に低減できる。更
に、請求項3の発明によれば、雨水の浸入が防止でき、
耐久性を増大させる効果を奏する。
According to the second aspect of the present invention, it is possible to more accurately reduce the intake noise of different frequencies generated from the mounted engines having different displacements and cylinder numbers. Further, according to the invention of claim 3, infiltration of rainwater can be prevented,
It has the effect of increasing durability.

【図面の簡単な説明】[Brief description of drawings]

【図1】請求項2の発明の車両の吸気装置の一実施例の
背面図である。
FIG. 1 is a rear view of an embodiment of an intake device for a vehicle according to a second aspect of the invention.

【図2】図1の要部縦断面図である。FIG. 2 is a longitudinal sectional view of a main part of FIG.

【図3】連通孔の数及び位置を変えた他の例の図1の要
部縦断面図である。
FIG. 3 is a longitudinal sectional view of a main part of FIG. 1 showing another example in which the number and positions of communication holes are changed.

【図4】連通孔の数及び位置を変えた更に他の例の図1
の要部縦断面図である。
FIG. 4 is a view of still another example in which the number and position of communication holes are changed.
It is a longitudinal cross-sectional view of a main part of

【図5】図1の要部の斜視図である。5 is a perspective view of a main part of FIG. 1. FIG.

【図6】図1のX−X線拡大横断面図である。6 is an enlarged cross-sectional view taken along line XX of FIG.

【図7】共鳴室を1つ設けた他の例の図1のX−X線に
対応する拡大横断面図である。
FIG. 7 is an enlarged cross-sectional view corresponding to line XX in FIG. 1 of another example in which one resonance chamber is provided.

【図8】従来の例の車両の吸気装置の要部背面図であ
る。
FIG. 8 is a rear view of a main part of a conventional air intake system for a vehicle.

【図9】キャブに吸気装置が設けられた従来例の背面図
である。
FIG. 9 is a rear view of a conventional example in which a cab is provided with an intake device.

【符号の説明】[Explanation of symbols]

1 吸気ダクト 7 吸入口 9 レインキャップ 10a,10b,10c 共鳴室 12a〜12n 連通孔 14 空気取入口 15 ルーバ DESCRIPTION OF SYMBOLS 1 Intake duct 7 Suction port 9 Rain cap 10a, 10b, 10c Resonance chamber 12a-12n Communication hole 14 Air intake port 15 Louver

───────────────────────────────────────────────────── フロントページの続き (72)発明者 川尻 悟司 埼玉県入間郡大井町亀久保1237番地13 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Kawajiri 1237 13 Kamakubo, Oi-cho, Iruma-gun, Saitama 13

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 キャブの後部にエンジンに空気を導入す
る吸入口が設けられた吸気ダクトを固定し、その吸気ダ
クトの上端部にレインキャップを冠着し、前記吸気ダク
トに吸気騒音を低減する共鳴室を設けた車両の吸気装置
において、上記吸気ダクトの外部に一体に共鳴室を設
け、その共鳴室と吸気ダクト間を連通孔で連結し、その
連通孔を搭載したエンジンの排気量及び気筒数に適応す
る数及び位置に穿設してなることを特徴とする車両の吸
気装置。
1. An intake duct provided with an intake port for introducing air into an engine is fixed to a rear portion of a cab, and a rain cap is attached to an upper end of the intake duct to reduce intake noise in the intake duct. In an intake device for a vehicle having a resonance chamber, a resonance chamber is integrally provided outside the intake duct, the resonance chamber and the intake duct are connected by a communication hole, and the engine displacement and cylinder equipped with the communication hole are mounted. An air intake device for a vehicle, characterized in that the air intake device is provided at a number and a position corresponding to the number.
【請求項2】 キャブの後部にエンジンに空気を導入す
る吸入口が設けられた吸気ダクトを固定し、その吸気ダ
クトの上端部にレインキャップを冠着し、前記吸気ダク
トに吸気騒音を低減する共鳴室を設けた車両の吸気装置
において、上記吸気ダクトの左右外部に一体に容量の異
なる共鳴室を設け、その左右の共鳴室と吸気ダクト間を
それぞれ連通孔で連結し、その連通孔を搭載したエンジ
ンの排気量及び気筒数に適応する数及び位置に穿設して
なることを特徴とする車両の吸気装置。
2. An intake duct having an intake port for introducing air into the engine is fixed to the rear part of the cab, and a rain cap is attached to the upper end of the intake duct to reduce intake noise. In a vehicle intake device having a resonance chamber, resonance chambers having different capacities are integrally provided on the left and right outside of the intake duct, and the left and right resonance chambers and the intake duct are connected by communication holes, respectively, and the communication holes are mounted. An intake device for a vehicle, wherein the intake device is provided at a number and a position corresponding to the engine displacement and the number of cylinders.
【請求項3】 上記レインキャップは、車両の側面に向
けて空気取入口が開口し、その空気取入口にルーバが装
着してなる請求項1又は請求項2記載の車両の吸気装
置。
3. The intake device for a vehicle according to claim 1, wherein the rain cap has an air intake opening toward a side surface of the vehicle, and a louver is attached to the air intake.
JP30406494A 1994-12-07 1994-12-07 Intake device of vehicle Pending JPH08158967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30406494A JPH08158967A (en) 1994-12-07 1994-12-07 Intake device of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30406494A JPH08158967A (en) 1994-12-07 1994-12-07 Intake device of vehicle

Publications (1)

Publication Number Publication Date
JPH08158967A true JPH08158967A (en) 1996-06-18

Family

ID=17928604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30406494A Pending JPH08158967A (en) 1994-12-07 1994-12-07 Intake device of vehicle

Country Status (1)

Country Link
JP (1) JPH08158967A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520066A (en) * 2013-11-08 2015-05-13 Leyland Trucks Ltd Air intake assembly and duct therefor
CN105673277A (en) * 2014-10-10 2016-06-15 曼·胡默尔有限公司 Air cleaner assembly with integrated acoustic resonator
CN111206985A (en) * 2018-11-21 2020-05-29 通用汽车环球科技运作有限责任公司 Vehicle charge air cooler with integrated resonator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520066A (en) * 2013-11-08 2015-05-13 Leyland Trucks Ltd Air intake assembly and duct therefor
GB2520066B (en) * 2013-11-08 2019-12-04 Leyland Trucks Ltd Air intake assembly and duct therefor
CN105673277A (en) * 2014-10-10 2016-06-15 曼·胡默尔有限公司 Air cleaner assembly with integrated acoustic resonator
CN111206985A (en) * 2018-11-21 2020-05-29 通用汽车环球科技运作有限责任公司 Vehicle charge air cooler with integrated resonator

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