JPS6477722A - V-type multiple cylinder engine for motorcycle - Google Patents

V-type multiple cylinder engine for motorcycle

Info

Publication number
JPS6477722A
JPS6477722A JP20088988A JP20088988A JPS6477722A JP S6477722 A JPS6477722 A JP S6477722A JP 20088988 A JP20088988 A JP 20088988A JP 20088988 A JP20088988 A JP 20088988A JP S6477722 A JPS6477722 A JP S6477722A
Authority
JP
Japan
Prior art keywords
clutch
center line
left cylinders
cylinders
crank
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
JP20088988A
Other languages
Japanese (ja)
Other versions
JPH0526012B2 (en
Inventor
Yoshiharu Isaka
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 JP20088988A priority Critical patent/JPS6477722A/en
Publication of JPS6477722A publication Critical patent/JPS6477722A/en
Publication of JPH0526012B2 publication Critical patent/JPH0526012B2/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1816—Number of cylinders four

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)

Abstract

PURPOSE:To attempt the prevention of interference between rear cylinders and a clutch housing and the miniaturization of an engine as well by letting each center line of rear right and left cylinders against each center line of front right and left cylinders be displaced to the axial direction of a crank shaft at the opposite side of a clutch. CONSTITUTION:An engine 12 is equipped with an upper crank case 22a and the like including both front right and left cylinders 21a and rear right and left cylinders 21a both of which are slanted in a V-shape configuration. And each journal section 32 through 34 of a crank shaft 31 is supported by each main bearing 35 through 37 respectively in a joint surface of the upper crank case 22a with the lower crank case. And the rotation of the crank shaft 31 is designed to be transmitted to rear wheels via a crank gear 54, a clutch gear 55, a clutch 56 and the like. In this constitution, each center line 12 and 12' of the rear right and left cylinders 21b against each center line 11 and 11' of the front right and left cylinders 21a is displaced to the axial direction of the crank shaft 31 at the opposite side of the clutch 56.
JP20088988A 1988-08-10 1988-08-10 V-type multiple cylinder engine for motorcycle Granted JPS6477722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20088988A JPS6477722A (en) 1988-08-10 1988-08-10 V-type multiple cylinder engine for motorcycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20088988A JPS6477722A (en) 1988-08-10 1988-08-10 V-type multiple cylinder engine for motorcycle

Publications (2)

Publication Number Publication Date
JPS6477722A true JPS6477722A (en) 1989-03-23
JPH0526012B2 JPH0526012B2 (en) 1993-04-14

Family

ID=16431935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20088988A Granted JPS6477722A (en) 1988-08-10 1988-08-10 V-type multiple cylinder engine for motorcycle

Country Status (1)

Country Link
JP (1) JPS6477722A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758299B2 (en) * 2001-01-11 2004-07-06 Honda Giken Kogyo Kabushiki Kaisha V-type internal combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456008U (en) * 1977-09-28 1979-04-18
JPS5572630A (en) * 1978-11-24 1980-05-31 Yamaha Motor Co Ltd Vehicle engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5456008U (en) * 1977-09-28 1979-04-18
JPS5572630A (en) * 1978-11-24 1980-05-31 Yamaha Motor Co Ltd Vehicle engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758299B2 (en) * 2001-01-11 2004-07-06 Honda Giken Kogyo Kabushiki Kaisha V-type internal combustion engine

Also Published As

Publication number Publication date
JPH0526012B2 (en) 1993-04-14

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