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JPS6049241U - ダイカスト可能なル−プ掃気装置を有する内燃機関 - Google Patents

ダイカスト可能なル−プ掃気装置を有する内燃機関

Info

Publication number
JPS6049241U
JPS6049241U JP1984120866U JP12086684U JPS6049241U JP S6049241 U JPS6049241 U JP S6049241U JP 1984120866 U JP1984120866 U JP 1984120866U JP 12086684 U JP12086684 U JP 12086684U JP S6049241 U JPS6049241 U JP S6049241U
Authority
JP
Japan
Prior art keywords
scavenging
cavity
cylinder
lateral direction
die
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
Application number
JP1984120866U
Other languages
English (en)
Other versions
JPS6131161Y2 (ja
Inventor
デビツド　ジエリイ　ヘイル
Original Assignee
ブランズウイツク　コ−ポレ−シヨン
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 ブランズウイツク　コ−ポレ−シヨン filed Critical ブランズウイツク　コ−ポレ−シヨン
Publication of JPS6049241U publication Critical patent/JPS6049241U/ja
Application granted granted Critical
Publication of JPS6131161Y2 publication Critical patent/JPS6131161Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/26—Multi-cylinder engines other than those provided for in, or of interest apart from, groups F02B25/02 - F02B25/24
    • 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
    • F02B75/007—Other engines having vertical crankshafts
    • 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
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0021—Construction
    • F02F7/0036—Casings for two-stroke engines with scavenging conduits
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle 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
    • 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
    • F02B2075/1812—Number of cylinders three
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Supercharger (AREA)
  • Exhaust Silencers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【図面の簡単な説明】
第１図は本考案によるエンジンのヘッド端、掃５気側を
示す展開斜視図、第２図は第１図の２−２線に沿った断
面図、第３９．４図は第１図の掃気通路カバーを示す図
、第５図は第１図のエンジンのクランク室端、排気側を
示す展開斜視図、第６図は第５図に示す排気カバーの側
面図、第７，８図は第５図に示す排気側掃気通路カバー
を示す図、第９図はシリンダブロックのヘッド端および
それに対応した排気カバー、ウォータジャケットカバー
を示す展開斜視図、第１０図は排気通路を示す、第１図
のエンジンの部分断面図、第１１歯はエンジンの掃気側
を示す側面図、第１２図は第１０図の１２−１２線に沿
った断面図、第１３図は第１２図の１３−１３線に沿っ
た断面図、第１４図はシリンダ内の新気流パターンを示
す斜視図、第１５図はシリンダブロックのヘッド端の部
分断面図である。 １０・・・エンジン、１１・・・シリンダ、１２・・・
クランク軸、１４・・・シリンダブロック、１５・・・
吸気マニホルド、１６．１７．１８・・・掃気ポート、
１９・・・ピストン、２０・・・排気ポート、２１，２
２．２３・・・’４気通路、２４．２５・・・ポートカ
バー、２６．２７・・・キャビティ、３９・・・補助ポ
ートカバー、４２・・・排気通路、５３・・・入口開口
、５６．−５７．５８・・・分岐路、６１・・・排気出
口通路。

Claims (1)

  1. 【実用新案登録請求の範囲】 各シリンダ毎に設けてあって、クランク室から燃焼室に
    空気燃料混合気を移送する少なくとも２つの掃気通路を
    有し、各掃気路が入口開口とシリンダ壁を貫く入口ポー
    トとを有する形式の列形多気筒２サイクルル一プ給気式
    エンジンにおいて、ダイカストシリンダブロックを包含
    し、このシリンダブロックが、 ′囚　平行列のシリンダと、 （Ｂ）　　各シリンダ毎に前記入口開口から前記掃気通
    路のうち第１の掃気通路の前記入口ポートまで延びるよ
    うに設けてあって、第１の側方向への成形ダイの引抜き
    を妨げるような突起かまった（ない第１の掃気キャビテ
    ィと、　゛（Ｃ）　　各シリンダ毎に排気通路を構成し
    ており、前記第１の側方向への成形ダイの引抜きを妨げ
    るような突起がまったくない排気キャビティと、 ■）各シリンダ毎に前記入口開口から前記掃気道路のう
    ち第２の掃気通路の前記入口ポートまで延びるように設
    けである第２の掃気キャビティであって、前記第１の側
    方向に対してほぼ逆でありかつ前記第１掃気キヤビテイ
    に対してほぼ直径方向に対向した第２の側方向への成形
    ダイの引抜きを妨げるような突起をまったく持たない第
    ２掃気キヤビテイと を包含することを特徴とするエンジン。
JP1984120866U 1980-11-28 1984-08-06 ダイカスト可能なル−プ掃気装置を有する内燃機関 Granted JPS6049241U (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/211,436 US4328770A (en) 1980-11-28 1980-11-28 Internal combustion engine with die castable loop transfer system
US211436 1980-11-28

Publications (2)

Publication Number Publication Date
JPS6049241U true JPS6049241U (ja) 1985-04-06
JPS6131161Y2 JPS6131161Y2 (ja) 1986-09-10

Family

ID=22786919

Family Applications (2)

Application Number Title Priority Date Filing Date
JP56190448A Pending JPS57157040A (en) 1980-11-28 1981-11-27 Internal combustion engine with loop transporter which can be die-casted
JP1984120866U Granted JPS6049241U (ja) 1980-11-28 1984-08-06 ダイカスト可能なル−プ掃気装置を有する内燃機関

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP56190448A Pending JPS57157040A (en) 1980-11-28 1981-11-27 Internal combustion engine with loop transporter which can be die-casted

Country Status (5)

Country Link
US (1) US4328770A (ja)
JP (2) JPS57157040A (ja)
CA (1) CA1173372A (ja)
FR (1) FR2501289A1 (ja)
GB (1) GB2088478B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007077826A1 (ja) * 2005-12-28 2007-07-12 Zenoah Co., Ltd. ２サイクルエンジン
US7946040B2 (en) 2005-11-15 2011-05-24 Husqvarna Zenoah Co., Ltd. Chainsaw

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152159U (ja) * 1983-03-30 1984-10-12 川崎重工業株式会社 ２サイクルエンジン
US4549507A (en) * 1984-09-19 1985-10-29 Brunswick Corp. Two cycle loop scavenged engine with improved transfer passage flow
US4632169A (en) * 1985-05-01 1986-12-30 Outboard Marine Corporation Two cycle cylinder block foam pattern
US4802447A (en) * 1985-12-17 1989-02-07 Brunswick Corporation Foam pattern for engine cylinder block
JPH0343558U (ja) * 1989-09-05 1991-04-24
DE4033623C1 (ja) * 1990-10-23 1992-03-12 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
US5134976A (en) * 1991-06-04 1992-08-04 Outboard Marine Corporation Internal combustion engine
US5560331A (en) * 1994-05-10 1996-10-01 Yamaha Hatsudoki Kabushiki Kaisha Cylinder head for engine
JPH07305652A (ja) * 1994-05-10 1995-11-21 Yamaha Motor Co Ltd 内燃機関用シリンダヘッド
JP2007176128A (ja) * 2005-12-28 2007-07-12 Komatsu Zenoah Co チェーンソー
US20080092976A1 (en) * 2006-10-20 2008-04-24 Komatsu Zenoah Co. Blower duct
US20090038106A1 (en) * 2007-08-10 2009-02-12 Zenoah Co., Ltd. Engine blower

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731960A (en) * 1956-01-24 Internal combustion engine with die cast block
US3059624A (en) * 1962-10-23 Two-stroke internal combustion engines
US2190011A (en) * 1936-10-26 1940-02-13 Audi Ag Scavenging of high speed two-stroke internal combustion engines
US2227500A (en) * 1938-01-03 1941-01-07 Johnson Brothers Engineering C Die-cast motor block
US2643510A (en) * 1949-09-23 1953-06-30 Elmer C Kiekhaefer Internal-combustion engine
US2729204A (en) * 1955-03-04 1956-01-03 Kiekhaefer Corp Crankcase induction system for alternate-firing two-cycle engines
US3105474A (en) * 1961-02-23 1963-10-01 Kiekhaefer Corp Two-cycle internal-combustion engine
US3173407A (en) * 1961-08-17 1965-03-16 Kaiser Jeep Corp Aluminum engine
US3971297A (en) * 1974-05-24 1976-07-27 Fox Manufacturing Company Two cycle engine with peripheral bypass for piston head and method of manufacture
US4092958A (en) * 1975-09-04 1978-06-06 Brunswick Corporation Internal combustion engine
JPS54106722A (en) * 1978-02-09 1979-08-22 Toyota Motor Corp Active thermal atmosphere two-cycle internal combustion engine
US4306522A (en) * 1980-06-19 1981-12-22 Briggs & Stratton Corporation Transfer port duct for two-stroke engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7946040B2 (en) 2005-11-15 2011-05-24 Husqvarna Zenoah Co., Ltd. Chainsaw
WO2007077826A1 (ja) * 2005-12-28 2007-07-12 Zenoah Co., Ltd. ２サイクルエンジン

Also Published As

Publication number Publication date
JPS6131161Y2 (ja) 1986-09-10
GB2088478A (en) 1982-06-09
JPS57157040A (en) 1982-09-28
FR2501289B1 (ja) 1985-01-18
CA1173372A (en) 1984-08-28
US4328770A (en) 1982-05-11
FR2501289A1 (fr) 1982-09-10
GB2088478B (en) 1984-09-19

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