JPS56118523A - Multicylinder engine for motor-cycle - Google Patents

Multicylinder engine for motor-cycle

Info

Publication number
JPS56118523A
JPS56118523A JP2248380A JP2248380A JPS56118523A JP S56118523 A JPS56118523 A JP S56118523A JP 2248380 A JP2248380 A JP 2248380A JP 2248380 A JP2248380 A JP 2248380A JP S56118523 A JPS56118523 A JP S56118523A
Authority
JP
Japan
Prior art keywords
cycle
crank arm
motor
crank
crankshaft
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
JP2248380A
Other languages
Japanese (ja)
Other versions
JPH0118249B2 (en
Inventor
Masashi Mizutani
Takeo Aoyama
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 JP2248380A priority Critical patent/JPS56118523A/en
Publication of JPS56118523A publication Critical patent/JPS56118523A/en
Publication of JPH0118249B2 publication Critical patent/JPH0118249B2/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
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • 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)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To eliminate the necessity of provision of a specific power transmitting gear to a journal portion of a crankshaft of a multicylinder engine for a motor-cycle to reduce the length of the crankshaft by forming on the periphery of a crank arm driving teeth for power transmittion. CONSTITUTION:When the invention is applied to a four-cycle four-cylinder engine placed horizontally on a body of a motor-cycle, crank pins 13 which are connected to con'rods 12 for pistons 5 of cylinders 4a-4d, four sets of crank arms 14a, 14b;- 17a, 17b which are located on both sides of the respective crank pins 13, and journal portions 18, are integrally formed on a crankshaft 9 by forging. The crank arm 15a corresponding to the second cylinder 4b is formed in a regular circle and is provided in a coaxial relationship with the journal portion 18. The crank arm 15a has in- tegrally formed on the outer periphery thereof driving teeth 19 for power transmission which are adapted to mesh with a drive gear 24. The crank arm 15 is induction hardened at the teeth 19 thereof.
JP2248380A 1980-02-25 1980-02-25 Multicylinder engine for motor-cycle Granted JPS56118523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2248380A JPS56118523A (en) 1980-02-25 1980-02-25 Multicylinder engine for motor-cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2248380A JPS56118523A (en) 1980-02-25 1980-02-25 Multicylinder engine for motor-cycle

Related Child Applications (4)

Application Number Title Priority Date Filing Date
JP9952488A Division JPS63289223A (en) 1988-04-22 1988-04-22 Parallel four-cylinder engine for motorcycle
JP9952588A Division JPS63289221A (en) 1988-04-22 1988-04-22 Parallel four-cylinder engine for motorcycle
JP9952788A Division JPS63289353A (en) 1988-04-22 1988-04-22 Crankshaft in multicylinder engine for vehicle
JP9952688A Division JPS63289222A (en) 1988-04-22 1988-04-22 Crankshaft of multiple cylinder engine for vehicle

Publications (2)

Publication Number Publication Date
JPS56118523A true JPS56118523A (en) 1981-09-17
JPH0118249B2 JPH0118249B2 (en) 1989-04-05

Family

ID=12083960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2248380A Granted JPS56118523A (en) 1980-02-25 1980-02-25 Multicylinder engine for motor-cycle

Country Status (1)

Country Link
JP (1) JPS56118523A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853637A (en) * 1981-09-25 1983-03-30 Honda Motor Co Ltd Power take-off device of straight-type 4-cylinder engine for light vehicle
JPS5970856A (en) * 1982-10-15 1984-04-21 Yamaha Motor Co Ltd Multi-cylinder engine
US4623490A (en) * 1984-08-29 1986-11-18 Ruhrchemie Aktiengesellschaft Process for the purification of sulfonated aryl phosphines
JPS629020A (en) * 1985-07-02 1987-01-17 Yamaha Motor Co Ltd Crankshaft for multiple cylinder engine
JPS63289222A (en) * 1988-04-22 1988-11-25 Yamaha Motor Co Ltd Crankshaft of multiple cylinder engine for vehicle
GB2346670A (en) * 1999-02-11 2000-08-16 United Eng Forgings Ltd Crankshaft construction
JP2006170286A (en) * 2004-12-14 2006-06-29 Mazda Motor Corp Method of manufacturing crankshaft with balancer drive gear

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815682A (en) * 1954-09-29 1957-12-10 Gen Motors Corp Crankshaft
JPS4988111U (en) * 1972-10-23 1974-07-31
JPS5250109U (en) * 1975-10-07 1977-04-09
JPS52148717A (en) * 1976-06-04 1977-12-10 Toyota Motor Corp Preparation of hollow crank shaft
JPS53117811U (en) * 1977-02-28 1978-09-19
JPS5429275U (en) * 1977-07-29 1979-02-26
JPS5564128A (en) * 1978-11-10 1980-05-14 Nissan Motor Co Ltd Crank of internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2306830C3 (en) * 1973-02-12 1975-10-09 Siemens Ag, 1000 Berlin Und 8000 Muenchen Setup for differential pressure transducers based on the force comparison principle
JPS5250109B2 (en) * 1974-06-28 1977-12-22

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815682A (en) * 1954-09-29 1957-12-10 Gen Motors Corp Crankshaft
JPS4988111U (en) * 1972-10-23 1974-07-31
JPS5250109U (en) * 1975-10-07 1977-04-09
JPS52148717A (en) * 1976-06-04 1977-12-10 Toyota Motor Corp Preparation of hollow crank shaft
JPS53117811U (en) * 1977-02-28 1978-09-19
JPS5429275U (en) * 1977-07-29 1979-02-26
JPS5564128A (en) * 1978-11-10 1980-05-14 Nissan Motor Co Ltd Crank of internal combustion engine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853637A (en) * 1981-09-25 1983-03-30 Honda Motor Co Ltd Power take-off device of straight-type 4-cylinder engine for light vehicle
JPS5970856A (en) * 1982-10-15 1984-04-21 Yamaha Motor Co Ltd Multi-cylinder engine
JPH0555686B2 (en) * 1982-10-15 1993-08-17 Yamaha Motor Co Ltd
US4623490A (en) * 1984-08-29 1986-11-18 Ruhrchemie Aktiengesellschaft Process for the purification of sulfonated aryl phosphines
JPS629020A (en) * 1985-07-02 1987-01-17 Yamaha Motor Co Ltd Crankshaft for multiple cylinder engine
JPS63289222A (en) * 1988-04-22 1988-11-25 Yamaha Motor Co Ltd Crankshaft of multiple cylinder engine for vehicle
JPH0355652B2 (en) * 1988-04-22 1991-08-26
GB2346670A (en) * 1999-02-11 2000-08-16 United Eng Forgings Ltd Crankshaft construction
GB2346670B (en) * 1999-02-11 2003-07-16 United Eng Forgings Ltd Crankshaft construction
JP2006170286A (en) * 2004-12-14 2006-06-29 Mazda Motor Corp Method of manufacturing crankshaft with balancer drive gear
JP4683187B2 (en) * 2004-12-14 2011-05-11 マツダ株式会社 Manufacturing method of crankshaft with balancer drive gear

Also Published As

Publication number Publication date
JPH0118249B2 (en) 1989-04-05

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