JPS6029395A - Intake box for outboard engine - Google Patents

Intake box for outboard engine

Info

Publication number
JPS6029395A
JPS6029395A JP58136828A JP13682883A JPS6029395A JP S6029395 A JPS6029395 A JP S6029395A JP 58136828 A JP58136828 A JP 58136828A JP 13682883 A JP13682883 A JP 13682883A JP S6029395 A JPS6029395 A JP S6029395A
Authority
JP
Japan
Prior art keywords
intake
intake box
box
intake port
caburator
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
JP58136828A
Other languages
Japanese (ja)
Inventor
Akinori Kojima
小島　明典
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.)
Yamaha Marine Co Ltd
Original Assignee
Sanshin Kogyo KK
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 Sanshin Kogyo KK filed Critical Sanshin Kogyo KK
Priority to JP58136828A priority Critical patent/JPS6029395A/en
Publication of JPS6029395A publication Critical patent/JPS6029395A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10026—Plenum chambers
    • F02M35/10052—Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • 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
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/165—Marine vessels; Ships; Boats
    • F02M35/167—Marine vessels; Ships; Boats having outboard engines; Jet-skis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

PURPOSE:To make cleaning, disassembing and assembling of an intake box easily, by forming the intake box to be secured to a caburator by coupling the rims of two half bodies of the intage box, together, providing an intake port on one of the half bodies and a net for preventing sucked-in foreign matters in the intake port in an integrated form. CONSTITUTION:An intake box is constructured by two half bodies 42, 44 made of synthetic resin. One half body 42 is provided with an intake port 46 projecting along the side surface of a caburator 32 and an opening opposed to the intake passage of a caburator 32, and a net 48 for preventing sucked-in foreign matters is provided integrally in the intake port 46. Further, the other half body 44 formed in approximately a cup-shape and is provided with a pluraity of supports 50. Both of the half bodies 42 and 44 are interconnected with each other by screwing clamp rings 58 into the supports 50. Thereby, invasion of the foreign matters such as dust, a bolt/nut or the like, into the intake box 40 and the caburator 32 can be avoided by the net 48. Accordingly, cleaning, disassembling and assembling of the intake box 40 can be easily carried out.

Description

【発明の詳細な説明】 本発明はエンジンカバー１引二収容された気化器に固定
される吸気箱装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intake box device fixed to a carburetor housed in an engine cover.

船外機は塵埃の少ない環境で使用されるため。This is because outboard motors are used in environments with little dust.

気化器に固定される吸気箱には通常フィルりを取付けな
い。吸気箱はエンシンカ）Ｚ−内に収容されるが、万一
このエンジンカッく一内にボルト・ナツトが落下してい
たり異物があったりしてこれら力Ｓエンジンに吸入され
ると、気化器やエンジンな傷める。そこでこれら異物の
吸入を防ぐため金網を気化器の吸入口に収付けたものが
ある。この場合金網は気化器に固定される吸気箱の内側
に位置するため、金網の掃除がしにくいという問題があ
った。また金網は気化器毎に取付けられるため複数の気
化器を有する場合には分解・組立が面倒でもあった。A filler is usually not attached to the intake box that is fixed to the carburetor. The intake box is housed in the engine cabinet, but in the unlikely event that a bolt or nut falls or there is a foreign object inside this engine compartment, and these are sucked into the engine, the carburetor or It will damage the engine. In order to prevent these foreign substances from being inhaled, some vaporizers have a wire mesh placed in the intake port of the vaporizer. In this case, since the wire mesh is located inside the intake box that is fixed to the carburetor, there is a problem in that it is difficult to clean the wire mesh. Furthermore, since the wire mesh is attached to each vaporizer, disassembly and assembly are troublesome when a plurality of vaporizers are used.

本発明はこのような事情に鑑みなされたものであり、異
物の吸入を防ぎ、掃除がし易くまた分解・組立の作業性
が良好な船外機の吸気装置を提供１−ることを目的とす
る。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an intake system for an outboard motor that prevents inhalation of foreign substances, is easy to clean, and has good workability in disassembling and assembling. do.

本発明はこの目的達成のため、吸気箱の吸気口に網を吸
気箱と一体成形した。すなわちエンジンカバー内に収容
された気化器に吸気箱を固定した船外機において、前記
吸気箱を２つの半休の周縁部を重合して形成すると共に
、一方の前記半休には吸気口を設け、この吸気口に異物
吸入防止網を一体に成形したものである。以下図示の実
施例に基づき２本発明の詳細な説明する。In order to achieve this objective, the present invention integrally molds a mesh at the intake port of the intake box with the intake box. That is, in an outboard motor in which an intake box is fixed to a carburetor housed in an engine cover, the intake box is formed by overlapping the peripheral edges of two half-holes, and one half-hole is provided with an intake port, A foreign matter inhalation prevention net is integrally molded into this intake port. The present invention will now be described in detail based on the illustrated embodiments.

第１肉は本発明の一実施例の側面図、第２図はその吸気
箱付近を断面した側面図　第３図はその■−■線断面図
、第４図と第５図は第３図における■部分拡大図と■矢
視図である。The first figure is a side view of one embodiment of the present invention, the second figure is a cross-sectional side view of the vicinity of the intake box, the third figure is a cross-sectional view taken along the line ■-■, and the fourth and fifth figures are the third figure. They are a partial enlarged view and a view in the direction of the arrow.

第１図において船外機１０はアツノくケーシング１２と
、ロアケーシング１４と１　エンジン１６と。In FIG. 1, the outboard motor 10 has a hot casing 12, a lower casing 14, and an engine 16.

エンジンカバー１８とを有する。ロアケーシング１４（
二は略水平に出力軸２０が保持され、その後端には推進
プロペラ２２が取付けられている。この出力軸２０には
正逆転切換用歯車群２４が装着され、エンジン１６の出
力はケーシング１２．１４内を略垂直に通る駆動軸２６
および前記歯車群２４を介して出力軸２０に伝達される
。It has an engine cover 18. Lower casing 14 (
The second output shaft 20 is held substantially horizontally, and a propulsion propeller 22 is attached to the rear end. A gear group 24 for forward/reverse switching is attached to this output shaft 20, and the output of the engine 16 is transmitted through a drive shaft 26 passing approximately vertically within the casing 12.14.
and is transmitted to the output shaft 20 via the gear group 24.

エンジン１６は２サイクル３気筒で第２図に示すように
略垂直なりランク軸２８と、３つのピストン３０を備え
る。各気筒にはそれぞれ気化器３２が接続されている。The engine 16 is a 2-cycle, 3-cylinder engine, and includes a substantially vertical rank shaft 28 and three pistons 30, as shown in FIG. A carburetor 32 is connected to each cylinder.

３４はフロート室、３６はスロットル弁、３８はチョー
ク弁である。これら３つの気化器３２の上流側の端面に
は吸気箱４０が取付けられている。34 is a float chamber, 36 is a throttle valve, and 38 is a choke valve. An intake box 40 is attached to the upstream end faces of these three carburetors 32.

吸気箱４０は合成樹脂製の２つの半休４２．４４を備え
る。一方の半体４２には気化器３２の側方に突出する吸
気口４６および各気化器３２の吸気通路に対向する開口
４７が形成され、この吸気口４６には第６図に示すよう
に網目状の小孔を有する異物吸入防止網４８が一体成形
されている。他方の半体４４は略碗状に形成され、４本
の筒状の支柱５０　（５０ａ、５０ｂ、５０Ｃ，図では
３木のみが表れている）を有する。これら支柱５０の先
端の外縁は截頭円錐面とすると共（−１前記一方の半体
４２にはこの円錐面が係入する凹部５２が形成されてい
る。両半体４２．４４は支柱５０の先端を凹部５２に嵌
合させるように重合され１両半休４２．４４の周縁部が
気密に結合される。すなわち一方の半体４２の結合面に
は第５図に示すように環状溝５４が形成される一方、他
方の半体４４には環状凸部５６が形成され、これら環状
溝５４と環状凸部５６とを嵌合させたうえで両半体４２
゜４４外周縁を断面口字状の締付環５８で締付けている
。The intake box 40 includes two half-rests 42 and 44 made of synthetic resin. One half 42 is formed with an intake port 46 projecting to the side of the carburetor 32 and an opening 47 facing the intake passage of each carburetor 32, and the intake port 46 has a mesh as shown in FIG. A foreign matter inhalation prevention net 48 having small holes of the shape is integrally molded. The other half 44 is formed into a substantially bowl shape and has four cylindrical supports 50 (50a, 50b, 50C, only three of which are shown in the figure). The outer edges of the tips of these struts 50 are truncated conical surfaces (-1) The one half 42 is formed with a recess 52 into which this conical surface engages. are overlapped so that their tips fit into the recesses 52, and the peripheral edges of the two halves 42 and 44 are airtightly joined.That is, the joining surface of one half 42 is provided with an annular groove 54 as shown in FIG. On the other hand, an annular protrusion 56 is formed on the other half 44, and after fitting these annular grooves 54 and annular protrusion 56, both halves 42 are formed.
The outer circumferential edge of ゜44 is tightened with a tightening ring 58 having an opening-shaped cross section.

このように作られた吸気箱４０は、開口４７を各気化器
３２の吸気通路に位置合わせし、前記他方の半体４４側
から支柱５０および前記一方の半体４２を貫通する４本
のボルト５８によって気化器３２に固定される。The intake box 40 made in this way has the opening 47 aligned with the intake passage of each carburetor 32, and four bolts passing through the support column 50 and the one half 42 from the other half 44 side. 58 to the carburetor 32.

本実施例によればエンジンカバー１８に設けた空気収入
口（図示せず）からカバー１８内（二人った空気は異物
吸入防止網４８を通って吸気箱４０内に入り、さらに各
気筒の気化器３２に吸入される。吸気口４６には網４８
が設けられているので。According to this embodiment, air entering the cover 18 from an air intake port (not shown) provided in the engine cover 18 enters the intake box 40 through the foreign matter inhalation prevention net 48, and then enters the intake box 40 of each cylinder. It is inhaled into the vaporizer 32. A screen 48 is provided at the intake port 46.
Because it is provided.

エンジンカバー１８内に外から吸入された虫や比較的大
きなごみはこの網４８に捕えられる。またカバー１８内
（二落ちたボルト・ナツトなどの異物もこの網４８に当
たり吸気箱４０内には入らない。Insects and relatively large debris sucked into the engine cover 18 from the outside are caught by the net 48. Further, foreign objects such as bolts and nuts that have fallen into the cover 18 also hit this net 48 and do not enter the intake box 40.

従って気化器３２やエンジン１６内に異物が吸入される
ことはない。Therefore, no foreign matter is sucked into the carburetor 32 or the engine 16.

本発明は以上のように吸気箱を２つの半休を重合させて
形成し、その一方の半休の吸気口に異物吸入防止網を一
体成形したから、気化器やエンジン内への異物の吸入を
防ぐことができる。またこの網は吸気口にあるから吸気
箱を分解することなく簡単に掃除できる。さらにこの網
は一方の半休に一体成形するから製造が簡単で１組立お
よび分　′解も容易になる。In the present invention, as described above, the intake box is formed by polymerizing two half-holes, and the foreign matter inhalation prevention net is integrally molded on the intake port of one of the half-holes, thereby preventing the inhalation of foreign matter into the carburetor and the engine. be able to. Also, since this screen is located at the intake port, it can be easily cleaned without disassembling the intake box. Furthermore, since this net is integrally molded on one half, it is easy to manufacture and easy to assemble and disassemble.

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

第１図は本発明を適用した船外機の側面図、第２図はそ
の一部の拡大断面図、第３図はそのｍ−ｍ線断面図、ま
た第４図と第５図は第３図における■部分の拡大図と■
矢視図である。 １０　・船外機、１Ｂ・・・エンジンカバー。 ３２・・・気化器、４０・・・吸気箱、４２．４４・・
・半休。 ４６・吸気口、４８・・異物吸入防止網。 特許出願人　三信工業株式会社 代理人　弁理士　山　１）　文　雄Fig. 1 is a side view of an outboard motor to which the present invention is applied, Fig. 2 is an enlarged cross-sectional view of a portion thereof, Fig. 3 is a cross-sectional view taken along line mm, and Figs. Enlarged view of the ■ part in Figure 3 and ■
It is an arrow view. 10 ・Outboard motor, 1B...engine cover. 32... Carburetor, 40... Intake box, 42.44...
・Half holiday. 46. Intake port, 48. Foreign matter inhalation prevention net. Patent applicant Sanshin Kogyo Co., Ltd. Agent Patent attorney Yama 1) Yu Moon

Claims (1)

【特許請求の範囲】[Claims] エンジンカバー内に収容された気化器に吸気箱を固定し
た船外機において、前記吸気箱を２つの半休の周縁部を
重合して形成すると共に、一方の前記半休には吸気口を
設け、この吸気口（′″−は異物吸入防止網を一体に成
形したことを特徴とする船外機の吸気箱装置。In an outboard motor in which an intake box is fixed to a carburetor housed in an engine cover, the intake box is formed by overlapping the peripheral edges of two half-boards, and one of the half-boards is provided with an intake port. An intake box device for an outboard motor, characterized by an intake port ('''-) integrally molded with a foreign matter inhalation prevention net.
JP58136828A 1983-07-28 1983-07-28 Intake box for outboard engine Pending JPS6029395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58136828A JPS6029395A (en) 1983-07-28 1983-07-28 Intake box for outboard engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58136828A JPS6029395A (en) 1983-07-28 1983-07-28 Intake box for outboard engine

Publications (1)

Publication Number Publication Date
JPS6029395A true JPS6029395A (en) 1985-02-14

Family

ID=15184448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58136828A Pending JPS6029395A (en) 1983-07-28 1983-07-28 Intake box for outboard engine

Country Status (1)

Country Link
JP (1) JPS6029395A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809771A1 (en) * 2000-05-31 2001-12-07 Suzuki Co Ltd OUTBOARD INTAKE MANIFOLD
FR2809772A1 (en) * 2000-05-31 2001-12-07 Suzuki Co Ltd Internal combustion engine outboard motor has improved synthetic resin air admission collector with air over-pressure reservoir fitted with diverters feeding air to engine cylinders
BE1015285A3 (en) * 2000-05-31 2005-01-11 Suzuki Co Ltd Perfect for manifold outboard.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57353A (en) * 1980-05-30 1982-01-05 Sanshin Ind Co Ltd Intake air heater for outboard engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57353A (en) * 1980-05-30 1982-01-05 Sanshin Ind Co Ltd Intake air heater for outboard engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809771A1 (en) * 2000-05-31 2001-12-07 Suzuki Co Ltd OUTBOARD INTAKE MANIFOLD
FR2809772A1 (en) * 2000-05-31 2001-12-07 Suzuki Co Ltd Internal combustion engine outboard motor has improved synthetic resin air admission collector with air over-pressure reservoir fitted with diverters feeding air to engine cylinders
BE1015285A3 (en) * 2000-05-31 2005-01-11 Suzuki Co Ltd Perfect for manifold outboard.
BE1015284A3 (en) * 2000-05-31 2005-01-11 Suzuki Co Ltd Admission collector motor outboard.

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