JPS5440907A - 2-cycle engine - Google Patents

2-cycle engine

Info

Publication number
JPS5440907A
JPS5440907A JP10738377A JP10738377A JPS5440907A JP S5440907 A JPS5440907 A JP S5440907A JP 10738377 A JP10738377 A JP 10738377A JP 10738377 A JP10738377 A JP 10738377A JP S5440907 A JPS5440907 A JP S5440907A
Authority
JP
Japan
Prior art keywords
scavenging
air mixture
fuel
air
cylinder
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
JP10738377A
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 JP10738377A priority Critical patent/JPS5440907A/en
Priority to US05/939,774 priority patent/US4216747A/en
Priority to GB7835694A priority patent/GB2003980B/en
Priority to DE19782839051 priority patent/DE2839051A1/en
Publication of JPS5440907A publication Critical patent/JPS5440907A/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
    • 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
    • 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
    • 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

Abstract

PURPOSE:To improve scavenging efficiency, by opening a scavenging port, into which dilute fuel-air mixture or air is introduced, earlier than a scavenging port into which dense fuel-air mixture is introduced, relating to an uniflow system opposed piston type 2-cycle engine. CONSTITUTION:Dilute fuel-air mixture or air is introduced into a cylinder 5 through scavenging pasages 24 and 25 first, and residual gas inside the cylinder 5 is scavenged through an exhaust port 13. Since, at that time, scavenging ports 28 and 29 open toward a center part of the cylinder 5, dilute fuel-air mixture or air flows to an ignition plug 12 and the exhaust port 13, thus, residual gas is scavenged of effectively. And scavenging ports 26 and 27 open later than scavenging ports 28 and 29, dense fuel-air mixture is introduced into the cylinder 5 through scavenging passages 22 and 23, a dense fuel-air mixture layer is formed at a head of a piston 9. Thus, scavenging effeciency can be improved and satisfactory burning can be achieved.
JP10738377A 1977-09-07 1977-09-07 2-cycle engine Pending JPS5440907A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10738377A JPS5440907A (en) 1977-09-07 1977-09-07 2-cycle engine
US05/939,774 US4216747A (en) 1977-09-07 1978-09-05 Uniflow, double-opposed piston type two-cycle internal combustion engine
GB7835694A GB2003980B (en) 1977-09-07 1978-09-05 Uniflow double-opposed piston type two-cycle internal combustion engines
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
JP10738377A JPS5440907A (en) 1977-09-07 1977-09-07 2-cycle engine

Publications (1)

Publication Number Publication Date
JPS5440907A true JPS5440907A (en) 1979-03-31

Family

ID=14457723

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10738377A Pending JPS5440907A (en) 1977-09-07 1977-09-07 2-cycle engine

Country Status (1)

Country Link
JP (1) JPS5440907A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115882A (en) * 1981-01-09 1982-07-19 Mitsubishi Electric Corp Two way light transmitting circuit
JPS6459972A (en) * 1987-08-31 1989-03-07 Nec Corp Optical semiconductor device
JP2017522490A (en) * 2014-07-28 2017-08-10 オックスフォード トゥー ストローク リミテッドＯｘｆｏｒｄ Ｔｗｏ Ｓｔｒｏｋｅ Ｌｉｍｉｔｅｄ Internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57115882A (en) * 1981-01-09 1982-07-19 Mitsubishi Electric Corp Two way light transmitting circuit
JPS6459972A (en) * 1987-08-31 1989-03-07 Nec Corp Optical semiconductor device
JP2017522490A (en) * 2014-07-28 2017-08-10 オックスフォード トゥー ストローク リミテッドＯｘｆｏｒｄ Ｔｗｏ Ｓｔｒｏｋｅ Ｌｉｍｉｔｅｄ Internal combustion engine

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