JPS5445408A - 2-cycle engine - Google Patents

2-cycle engine

Info

Publication number
JPS5445408A
JPS5445408A JP11197877A JP11197877A JPS5445408A JP S5445408 A JPS5445408 A JP S5445408A JP 11197877 A JP11197877 A JP 11197877A JP 11197877 A JP11197877 A JP 11197877A JP S5445408 A JPS5445408 A JP S5445408A
Authority
JP
Japan
Prior art keywords
air
fuel
scavenging air
scavenging
ports
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
JP11197877A
Other languages
Japanese (ja)
Inventor
Masaaki Noguchi
Yukiyasu Tanaka
Taro Tanaka
Nobukatsu Ueshima
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.)
Soken Inc
Original Assignee
Nippon Soken Inc
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 Nippon Soken Inc filed Critical Nippon Soken Inc
Priority to JP11197877A priority Critical patent/JPS5445408A/en
Priority to GB7835694A priority patent/GB2003980B/en
Priority to US05/939,774 priority patent/US4216747A/en
Priority to DE19782839051 priority patent/DE2839051A1/en
Publication of JPS5445408A publication Critical patent/JPS5445408A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/14—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on different main shafts
    • 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
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/08—Engines with oppositely-moving reciprocating working pistons
    • 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
    • F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To prevent fuel blow-by as well as to improve scavenging air efficiency in such a way that residual gas is scavenged by fresh aeration composed of air, then fuel is put to be injected. CONSTITUTION:Provision of air intake pipes 16, 17 to lead air into crank chambers 6, 7, scavenging air passages 22, 23, 24, 25 to lead air from both crank chambers 6, 7 into plural scavenging air ports 26, 27, 28, 29, and a fuel injecting valve 30 installed on part of said scavenging air ports facilitates to hasten the opening timing of other scavenging air ports 27, 28, 29 than that of the scavenging air port 26 which is installed said fuel injecting valve 30. Said constitution makes it possible to first scavenge residual gas by fresh aeration composed of air, then to inject fuel, to improve the scavenging air efficiency and to prevent fuel blowby.
JP11197877A 1977-09-07 1977-09-16 2-cycle engine Pending JPS5445408A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11197877A JPS5445408A (en) 1977-09-16 1977-09-16 2-cycle engine
GB7835694A GB2003980B (en) 1977-09-07 1978-09-05 Uniflow double-opposed piston type two-cycle internal combustion engines
US05/939,774 US4216747A (en) 1977-09-07 1978-09-05 Uniflow, double-opposed piston type two-cycle internal combustion engine
DE19782839051 DE2839051A1 (en) 1977-09-07 1978-09-07 COUNTERPISTON, TWO-STROKE COMBUSTION MACHINE WITH DC FLUSHING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11197877A JPS5445408A (en) 1977-09-16 1977-09-16 2-cycle engine

Publications (1)

Publication Number Publication Date
JPS5445408A true JPS5445408A (en) 1979-04-10

Family

ID=14574881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11197877A Pending JPS5445408A (en) 1977-09-07 1977-09-16 2-cycle engine

Country Status (1)

Country Link
JP (1) JPS5445408A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967704A (en) * 1988-06-03 1990-11-06 Sanshin Kogyo Kabushiki Kaisha Air intake device for engine of marine propulsion boat
JP2014227878A (en) * 2013-05-21 2014-12-08 株式会社デンソー Internal combustion engine
WO2021153223A1 (en) * 2020-01-30 2021-08-05 公祐 前中 Opposed free-piston engine generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967704A (en) * 1988-06-03 1990-11-06 Sanshin Kogyo Kabushiki Kaisha Air intake device for engine of marine propulsion boat
JP2014227878A (en) * 2013-05-21 2014-12-08 株式会社デンソー Internal combustion engine
WO2021153223A1 (en) * 2020-01-30 2021-08-05 公祐 前中 Opposed free-piston engine generator
JPWO2021153223A1 (en) * 2020-01-30 2021-08-05

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