JPS5786521A - Laminar charging and scavenging method of 2-cycle engine - Google Patents

Laminar charging and scavenging method of 2-cycle engine

Info

Publication number
JPS5786521A
JPS5786521A JP16123480A JP16123480A JPS5786521A JP S5786521 A JPS5786521 A JP S5786521A JP 16123480 A JP16123480 A JP 16123480A JP 16123480 A JP16123480 A JP 16123480A JP S5786521 A JPS5786521 A JP S5786521A
Authority
JP
Japan
Prior art keywords
piston
scavenging air
scavenging
cylinder
gas flow
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
JP16123480A
Other languages
Japanese (ja)
Inventor
Shigeru Onishi
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 JP16123480A priority Critical patent/JPS5786521A/en
Publication of JPS5786521A publication Critical patent/JPS5786521A/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
    • 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

  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE: To improve drivability of an engine used with kerosene fuel or the like of low volatility, by the charging method of downward inversion scavenging, in which imperfectly vaporized liquid drop fuel is promoted its evaporation and vaporization by heat exchange on the top surface of a piston.
CONSTITUTION: Residual gas in the preceding cycle in a cylinder is rapidly moved to the side of an exhaust port 2' at the beginning of opening of an exhaust valve 2, and cancelled by a downward gas flow component following up to a piston because the piston 1 is on the way of lowering motion at the final period of blow down, then a gas flow is moderated. Scavenging air is mostly inverted its motion in a lower down stroke of the piston 1 further on top surfaces of the piston and fed into the cylinder, then the top surface of the piston is fully cooled by the scavenging air, further the scavenging air is decelerated in a process when colliding against the piston surface and inverted, thus an excessive amount of swirl is not caused.
COPYRIGHT: (C)1982,JPO&Japio
JP16123480A 1980-11-14 1980-11-14 Laminar charging and scavenging method of 2-cycle engine Pending JPS5786521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16123480A JPS5786521A (en) 1980-11-14 1980-11-14 Laminar charging and scavenging method of 2-cycle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16123480A JPS5786521A (en) 1980-11-14 1980-11-14 Laminar charging and scavenging method of 2-cycle engine

Publications (1)

Publication Number Publication Date
JPS5786521A true JPS5786521A (en) 1982-05-29

Family

ID=15731180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16123480A Pending JPS5786521A (en) 1980-11-14 1980-11-14 Laminar charging and scavenging method of 2-cycle engine

Country Status (1)

Country Link
JP (1) JPS5786521A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280529U (en) * 1985-11-07 1987-05-22
US5063881A (en) * 1989-07-17 1991-11-12 Isuzu Motors Limited Ceramic engine
JPH0566226U (en) * 1992-02-12 1993-09-03 ダイハツ工業株式会社 2-cycle engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280529U (en) * 1985-11-07 1987-05-22
US5063881A (en) * 1989-07-17 1991-11-12 Isuzu Motors Limited Ceramic engine
JPH0566226U (en) * 1992-02-12 1993-09-03 ダイハツ工業株式会社 2-cycle engine

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