JP7819289B2 - 空気吸気式２ストロークエンジン - Google Patents

空気吸気式２ストロークエンジン

Info

Publication number
JP7819289B2
JP7819289B2 JP2024502376A JP2024502376A JP7819289B2 JP 7819289 B2 JP7819289 B2 JP 7819289B2 JP 2024502376 A JP2024502376 A JP 2024502376A JP 2024502376 A JP2024502376 A JP 2024502376A JP 7819289 B2 JP7819289 B2 JP 7819289B2
Authority
JP
Japan
Prior art keywords
scavenging
air
port
fuel injection
passage
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.)
Active
Application number
JP2024502376A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023162144A1 (https=
Inventor
邦淑 衞藤
祐介 鈴木
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.)
Yamabiko Corp
Original Assignee
Yamabiko Corp
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 Yamabiko Corp filed Critical Yamabiko Corp
Publication of JPWO2023162144A1 publication Critical patent/JPWO2023162144A1/ja
Application granted granted Critical
Publication of JP7819289B2 publication Critical patent/JP7819289B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • F02B25/16—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke the charge flowing upward essentially along cylinder wall opposite the inlet ports
    • 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
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • 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
    • F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/10—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel peculiar to scavenged two-stroke engines, e.g. injecting into crankcase-pump chamber
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
JP2024502376A 2022-02-25 2022-02-25 空気吸気式２ストロークエンジン Active JP7819289B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/007912 WO2023162144A1 (ja) 2022-02-25 2022-02-25 空気吸気式２ストロークエンジン

Publications (2)

Publication Number Publication Date
JPWO2023162144A1 JPWO2023162144A1 (https=) 2023-08-31
JP7819289B2 true JP7819289B2 (ja) 2026-02-24

Family

ID=87765114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024502376A Active JP7819289B2 (ja) 2022-02-25 2022-02-25 空気吸気式２ストロークエンジン

Country Status (3)

Country Link
US (1) US20250207527A1 (https=)
JP (1) JP7819289B2 (https=)
WO (1) WO2023162144A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080083381A1 (en) 2004-07-21 2008-04-10 Roland Kirchberger Two-Stroke Internal Combustion Engine
JP2014163244A (ja) 2013-02-22 2014-09-08 Yamabiko Corp ２ストローク内燃エンジン
JP2015124704A (ja) 2013-12-26 2015-07-06 本田技研工業株式会社 ２ストロークエンジン
WO2021177010A1 (ja) 2020-03-02 2021-09-10 株式会社やまびこ ２サイクル内燃エンジン及びエンジン作業機

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2591958B2 (ja) * 1987-07-20 1997-03-19 三信工業株式会社 ２サイクル燃料噴射エンジン
US4779581A (en) * 1987-10-26 1988-10-25 Outboard Marine Corporation Dual fuel injection system for two stroke internal combustion engine
JPH01162036U (https=) * 1988-04-30 1989-11-10
JP2908527B2 (ja) * 1990-06-25 1999-06-21 本田技研工業株式会社 ２サイクルエンジンの燃料噴射装置
JPH0726963A (ja) * 1993-07-06 1995-01-27 Daihatsu Motor Co Ltd ２サイクルエンジン
DE102018003476A1 (de) * 2018-04-24 2019-10-24 Andreas Stihl Ag & Co. Kg Verbrennungsmotor und Verfahren zu dessen Betrieb
US11946408B2 (en) * 2020-03-02 2024-04-02 Yamabiko Corporation Two-stroke internal combustion engine and engine working machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080083381A1 (en) 2004-07-21 2008-04-10 Roland Kirchberger Two-Stroke Internal Combustion Engine
JP2014163244A (ja) 2013-02-22 2014-09-08 Yamabiko Corp ２ストローク内燃エンジン
JP2015124704A (ja) 2013-12-26 2015-07-06 本田技研工業株式会社 ２ストロークエンジン
WO2021177010A1 (ja) 2020-03-02 2021-09-10 株式会社やまびこ ２サイクル内燃エンジン及びエンジン作業機

Also Published As

Publication number Publication date
JPWO2023162144A1 (https=) 2023-08-31
WO2023162144A1 (ja) 2023-08-31
US20250207527A1 (en) 2025-06-26

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