GB2088478B - Charge transfer and exhaust passages in die-cast two-stroke engine blocks - Google Patents

Charge transfer and exhaust passages in die-cast two-stroke engine blocks

Info

Publication number
GB2088478B
GB2088478B GB8135649A GB8135649A GB2088478B GB 2088478 B GB2088478 B GB 2088478B GB 8135649 A GB8135649 A GB 8135649A GB 8135649 A GB8135649 A GB 8135649A GB 2088478 B GB2088478 B GB 2088478B
Authority
GB
United Kingdom
Prior art keywords
cast
die
charge transfer
stroke engine
exhaust passages
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.)
Expired
Application number
GB8135649A
Other languages
English (en)
Other versions
GB2088478A (en
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.)
Brunswick Corp
Original Assignee
Brunswick 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 Brunswick Corp filed Critical Brunswick Corp
Publication of GB2088478A publication Critical patent/GB2088478A/en
Application granted granted Critical
Publication of GB2088478B publication Critical patent/GB2088478B/en
Expired 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)
GB8135649A 1980-11-28 1981-11-26 Charge transfer and exhaust passages in die-cast two-stroke engine blocks Expired GB2088478B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2088478A GB2088478A (en) 1982-06-09
GB2088478B true GB2088478B (en) 1984-09-19

Family

ID=22786919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8135649A Expired GB2088478B (en) 1980-11-28 1981-11-26 Charge transfer and exhaust passages in die-cast two-stroke engine blocks

Country Status (5)

Country Link
US (1) US4328770A (US07922777-20110412-C00004.png)
JP (2) JPS57157040A (US07922777-20110412-C00004.png)
CA (1) CA1173372A (US07922777-20110412-C00004.png)
FR (1) FR2501289A1 (US07922777-20110412-C00004.png)
GB (1) GB2088478B (US07922777-20110412-C00004.png)

Families Citing this family (14)

* 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 (US07922777-20110412-C00004.png) * 1989-09-05 1991-04-24
DE4033623C1 (US07922777-20110412-C00004.png) * 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
JP5091399B2 (ja) * 2005-11-15 2012-12-05 ハスクバーナ・ゼノア株式会社 チェーンソウ
JP2007176128A (ja) * 2005-12-28 2007-07-12 Komatsu Zenoah Co チェーンソー
JP2007177774A (ja) * 2005-12-28 2007-07-12 Komatsu Zenoah Co ２サイクルエンジン
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

Also Published As

Publication number Publication date
JPS6131161Y2 (US07922777-20110412-C00004.png) 1986-09-10
JPS57157040A (en) 1982-09-28
US4328770A (en) 1982-05-11
JPS6049241U (ja) 1985-04-06
GB2088478A (en) 1982-06-09
FR2501289A1 (fr) 1982-09-10
CA1173372A (en) 1984-08-28
FR2501289B1 (US07922777-20110412-C00004.png) 1985-01-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971126