JPS55146231A - Two-cycle engine - Google Patents

Two-cycle engine

Info

Publication number
JPS55146231A
JPS55146231A JP5487279A JP5487279A JPS55146231A JP S55146231 A JPS55146231 A JP S55146231A JP 5487279 A JP5487279 A JP 5487279A JP 5487279 A JP5487279 A JP 5487279A JP S55146231 A JPS55146231 A JP S55146231A
Authority
JP
Japan
Prior art keywords
timing
scavenging
engine
comes
dead point
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
JP5487279A
Other languages
Japanese (ja)
Inventor
Masayuki Abe
Toshihiko Ito
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 JP5487279A priority Critical patent/JPS55146231A/en
Publication of JPS55146231A publication Critical patent/JPS55146231A/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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/22—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/04—Mechanical drives; Variable-gear-ratio drives
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

PURPOSE: To improve performance of a two-cycle engine, by controlling the timing when a scavenging pump comes to the top dead point by a phase controlling means such that it is almost simultaneous with the timing for closing the scavenging port in a low-speed operating range of engine, whereas it is earlier than the valve closing timing in a high-speed operational range of engine.
CONSTITUTION: The timing when scavenging piston 28 comes to the top dead point is selected to have a lag of phase difference θ2 to the timing when piston 9 for opening and closing the scavenging port 3 comes to the bottom dead point and to be almost simultaneous with the timing when the scavenging port 3 is closed. Therefore, scavenging pressure becomes high when exhaust port 4 and scavenging port 3 are both closed. When the engine speed becomes maximum, phase of scavenging- pump driving sprocket 31 is advanced to that of sprocket 34 fixed to crank shaft 12, so that the timing when scavenging pump 28 comes to the top dead point is advanced through a phase angle θ2-θ1 and becomes earlier than the timing when exhaust port 4 is closed. Thus, engine performance can be improved considerably by varying the phase difference continuously within the range of θ2Wθ1 depending on the engine speed.
COPYRIGHT: (C)1980,JPO&Japio
JP5487279A 1979-05-04 1979-05-04 Two-cycle engine Pending JPS55146231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5487279A JPS55146231A (en) 1979-05-04 1979-05-04 Two-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5487279A JPS55146231A (en) 1979-05-04 1979-05-04 Two-cycle engine

Publications (1)

Publication Number Publication Date
JPS55146231A true JPS55146231A (en) 1980-11-14

Family

ID=12982673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5487279A Pending JPS55146231A (en) 1979-05-04 1979-05-04 Two-cycle engine

Country Status (1)

Country Link
JP (1) JPS55146231A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035119A (en) * 1983-05-18 1985-02-22 オスカル　シヤツク Internal combustion engine eauipped with displacement feederdriven by engine crank shaft
JPS6035108A (en) * 1983-05-18 1985-02-22 オスカル　シヤツツ Method and engine for introducing over-fed air into cylinderof internal combustion engine
JPS60190621A (en) * 1984-03-10 1985-09-28 Mazda Motor Corp Supercharging device for engine
JPS60190622A (en) * 1984-03-10 1985-09-28 Mazda Motor Corp Supercharging device for engine
JPS60209626A (en) * 1984-04-03 1985-10-22 Mazda Motor Corp Supercharging apparatus for engine
EP2132411A1 (en) * 2007-04-09 2009-12-16 SETH, Chandan Kumar Split cycle variable capacity rotary spark ignition engine
WO2012143940A1 (en) * 2011-04-19 2012-10-26 Seth, Chandan, Kumar Split cycle phase variable reciprocating piston spark ignition engine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6035119A (en) * 1983-05-18 1985-02-22 オスカル　シヤツク Internal combustion engine eauipped with displacement feederdriven by engine crank shaft
JPS6035108A (en) * 1983-05-18 1985-02-22 オスカル　シヤツツ Method and engine for introducing over-fed air into cylinderof internal combustion engine
JPS6035124A (en) * 1983-05-18 1985-02-22 オスカル　シヤツツ Internal combustion engine equipped with supercharger drivenby exhaust energy
JPH0526010B2 (en) * 1984-03-10 1993-04-14 Mazda Motor
JPS60190622A (en) * 1984-03-10 1985-09-28 Mazda Motor Corp Supercharging device for engine
JPS60190621A (en) * 1984-03-10 1985-09-28 Mazda Motor Corp Supercharging device for engine
JPH0526926B2 (en) * 1984-03-10 1993-04-19 Mazda Motor
JPS60209626A (en) * 1984-04-03 1985-10-22 Mazda Motor Corp Supercharging apparatus for engine
JPH0526927B2 (en) * 1984-04-03 1993-04-19 Mazda Motor
EP2132411A1 (en) * 2007-04-09 2009-12-16 SETH, Chandan Kumar Split cycle variable capacity rotary spark ignition engine
EP2132411A4 (en) * 2007-04-09 2014-11-05 Seth Chandan Kumar Split cycle variable capacity rotary spark ignition engine
WO2012143940A1 (en) * 2011-04-19 2012-10-26 Seth, Chandan, Kumar Split cycle phase variable reciprocating piston spark ignition engine
CN103620181A (en) * 2011-04-19 2014-03-05 吉班·乔蒂·米斯特里 Split cycle phase variable reciprocating piston spark ignition engine
US9458741B2 (en) 2011-04-19 2016-10-04 Chandan Kumar Seth Split cycle phase variable reciprocating piston spark ignition engine

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