JPS57148050A - Intake device of multi-cylinder engine - Google Patents

Intake device of multi-cylinder engine

Info

Publication number
JPS57148050A
JPS57148050A JP56032446A JP3244681A JPS57148050A JP S57148050 A JPS57148050 A JP S57148050A JP 56032446 A JP56032446 A JP 56032446A JP 3244681 A JP3244681 A JP 3244681A JP S57148050 A JPS57148050 A JP S57148050A
Authority
JP
Japan
Prior art keywords
intake
communicated
port
combustion chamber
cylinder head
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.)
Granted
Application number
JP56032446A
Other languages
Japanese (ja)
Other versions
JPH023027B2 (en
Inventor
Keiichi Sugiyama
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP56032446A priority Critical patent/JPS57148050A/en
Publication of JPS57148050A publication Critical patent/JPS57148050A/en
Publication of JPH023027B2 publication Critical patent/JPH023027B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10183—Engines having intake ducts fed from a separate carburettor or injector, the idling system being considered as a separate carburettor
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/112—Intake manifolds for engines with cylinders all in one line
    • 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

PURPOSE:To improve responsive acceleration and specific output of an engine, by holding flow speed of intake air to a combustion chamber as high as possible. CONSTITUTION:The first intake passage 8a, having an intake valve 6a, and the second intake passage 8b, having the other intake valve 6b, are formed in a cylinder head 5. Further both ports 9a, 9b are communicated by a communication hole 10. The port 9a in the downstream end of the first branch line 22a of an intake manifold 12 is opened to a position in the vicinity of a joint surface with a cylinder 2 in the side of the cylinder head 5, rapidly curved with large curvature and communicated to the inside of a combustion chamber through the intake valve 6a. The other port 9b is opened to the upper part slightly separated from the before described side of the cylinder head, gently curved from there with small curvature and communicated to the combustion chamber. At high output operation, a mixture in the second intake passage 8b, flowing in the port 9b with small curvature, causes a less amount of loss.
JP56032446A 1981-03-09 1981-03-09 Intake device of multi-cylinder engine Granted JPS57148050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56032446A JPS57148050A (en) 1981-03-09 1981-03-09 Intake device of multi-cylinder engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56032446A JPS57148050A (en) 1981-03-09 1981-03-09 Intake device of multi-cylinder engine

Publications (2)

Publication Number Publication Date
JPS57148050A true JPS57148050A (en) 1982-09-13
JPH023027B2 JPH023027B2 (en) 1990-01-22

Family

ID=12359182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56032446A Granted JPS57148050A (en) 1981-03-09 1981-03-09 Intake device of multi-cylinder engine

Country Status (1)

Country Link
JP (1) JPS57148050A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125914A (en) * 1984-07-13 1986-02-05 Yamaha Motor Co Ltd Intake-air device in four-cycle internal-combustion engine
JPS61113972U (en) * 1984-12-26 1986-07-18

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042256U (en) * 1973-08-15 1975-04-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042256U (en) * 1973-08-15 1975-04-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6125914A (en) * 1984-07-13 1986-02-05 Yamaha Motor Co Ltd Intake-air device in four-cycle internal-combustion engine
JPS61113972U (en) * 1984-12-26 1986-07-18
JPH0139898Y2 (en) * 1984-12-26 1989-11-30

Also Published As

Publication number Publication date
JPH023027B2 (en) 1990-01-22

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