JPS57140518A - Four-cycle internal combustion engine with twin pseudocombustion chambers - Google Patents

Four-cycle internal combustion engine with twin pseudocombustion chambers

Info

Publication number
JPS57140518A
JPS57140518A JP56024486A JP2448681A JPS57140518A JP S57140518 A JPS57140518 A JP S57140518A JP 56024486 A JP56024486 A JP 56024486A JP 2448681 A JP2448681 A JP 2448681A JP S57140518 A JPS57140518 A JP S57140518A
Authority
JP
Japan
Prior art keywords
engine
chambers
valve
pseudocombustion
twin
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
JP56024486A
Other languages
Japanese (ja)
Inventor
Akira Sato
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56024486A priority Critical patent/JPS57140518A/en
Publication of JPS57140518A publication Critical patent/JPS57140518A/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B2023/085—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition using several spark plugs per cylinder
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To simplify the valve-operating mechanisms and to improve the thermal efficiency of a four-cycle internal combustion engine by forming two not completely partitioned pseudocombustion chambers to the left and right of the center of the engine with a cylinder head and a piston of conical cross section when a compression stroke is completed. CONSTITUTION:an intake valve 2 and exhaust valve 3 are arranged on the center line of an engine, intake and exhaust are accomplished in the form of an S- shaped stream from an intake manifold 5 to exhaust manifold 6, and the piston 4 with a conical cross section and the cylinder head 7 where two spark plugs can be disposed to the right and left of the center of the engine form the combu stion chamber into not completely partitioned twin pseudocombustion chambers A to the right and left of the center of the engine when a compression stroke is completed. This enables a construction in which an intake valve 2 and exhaust valve 3 can be directly operated by a single cam shaft 10, thus so much simplifying the valve-operating mechanism. since the twin combustion chambers A are of the same geometry, this provides a better combustion efficiency than any presently used combustion chambers.
JP56024486A 1981-02-20 1981-02-20 Four-cycle internal combustion engine with twin pseudocombustion chambers Pending JPS57140518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56024486A JPS57140518A (en) 1981-02-20 1981-02-20 Four-cycle internal combustion engine with twin pseudocombustion chambers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56024486A JPS57140518A (en) 1981-02-20 1981-02-20 Four-cycle internal combustion engine with twin pseudocombustion chambers

Publications (1)

Publication Number Publication Date
JPS57140518A true JPS57140518A (en) 1982-08-31

Family

ID=12139510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56024486A Pending JPS57140518A (en) 1981-02-20 1981-02-20 Four-cycle internal combustion engine with twin pseudocombustion chambers

Country Status (1)

Country Link
JP (1) JPS57140518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042443A (en) * 1990-07-27 1991-08-27 Francesco Romanelli Multiple-valve internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042443A (en) * 1990-07-27 1991-08-27 Francesco Romanelli Multiple-valve internal combustion engine

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