JPS57210125A - Stratified scavenging 2-cycle internal combustion engine - Google Patents

Stratified scavenging 2-cycle internal combustion engine

Info

Publication number
JPS57210125A
JPS57210125A JP9545881A JP9545881A JPS57210125A JP S57210125 A JPS57210125 A JP S57210125A JP 9545881 A JP9545881 A JP 9545881A JP 9545881 A JP9545881 A JP 9545881A JP S57210125 A JPS57210125 A JP S57210125A
Authority
JP
Japan
Prior art keywords
scavenging
exhaust gas
check valve
opening
port
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
JP9545881A
Other languages
Japanese (ja)
Inventor
Hando Jo
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.)
NIHON KURINENJIN KENKYUSHO KK
NIPPON CLEAN ENGINE RES
Nippon Clean Engine Laboratory Co
Original Assignee
NIHON KURINENJIN KENKYUSHO KK
NIPPON CLEAN ENGINE RES
Nippon Clean Engine Laboratory Co
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 NIHON KURINENJIN KENKYUSHO KK, NIPPON CLEAN ENGINE RES, Nippon Clean Engine Laboratory Co filed Critical NIHON KURINENJIN KENKYUSHO KK
Priority to JP9545881A priority Critical patent/JPS57210125A/en
Publication of JPS57210125A publication Critical patent/JPS57210125A/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
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To perform stratified scavenging and improve thermal efficiency and purifying performance of exhaust gas, by utilizing exhaust energy, supplying fresh air into a cylinder from a scavenging device and providing said scavenging device in addition to a normal scavenging device. CONSTITUTION:A 2-cycle engine is operated in such a manner that a mixture is generated in a carburetor 13, fed into a crank chamber 8 from an intake passage 12 and pressed out ot a combustion chamber 3 at a scavenging stroke from a scavenging port 17 through a scavenging passage 16 to discharge exhaust gas from an exhaust port 22. In this case, a check valve 19, opened by negative pressure in a cylinder immediately after the blow down of exhaust gas, is provided to a cylinder head 12. Then at opening of said check valve 19, fresh air is allowed to flow into the combustion chamber 3 through an air passage 18 from an air cleaner 15. Opening of said check valve 19 is performed prior to opening of the scavenging port 17, in this way, stratified scavenging can be performed to increase thermal efficiency of the engine and improve purifying performance of exhaust gas.
JP9545881A 1981-06-19 1981-06-19 Stratified scavenging 2-cycle internal combustion engine Pending JPS57210125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9545881A JPS57210125A (en) 1981-06-19 1981-06-19 Stratified scavenging 2-cycle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9545881A JPS57210125A (en) 1981-06-19 1981-06-19 Stratified scavenging 2-cycle internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57210125A true JPS57210125A (en) 1982-12-23

Family

ID=14138229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9545881A Pending JPS57210125A (en) 1981-06-19 1981-06-19 Stratified scavenging 2-cycle internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57210125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62223413A (en) * 1986-03-24 1987-10-01 Kawasaki Heavy Ind Ltd Two-cycle engine
FR2694339A1 (en) * 1992-07-31 1994-02-04 Bosch Gmbh Robert Company known as: ROBERT BOSCH GMBH.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62223413A (en) * 1986-03-24 1987-10-01 Kawasaki Heavy Ind Ltd Two-cycle engine
JPH0580567B2 (en) * 1986-03-24 1993-11-09 Kawasaki Heavy Ind Ltd
FR2694339A1 (en) * 1992-07-31 1994-02-04 Bosch Gmbh Robert Company known as: ROBERT BOSCH GMBH.

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