JPS54150509A - Preparation of multicylinder cylinder-block - Google Patents

Preparation of multicylinder cylinder-block

Info

Publication number
JPS54150509A
JPS54150509A JP5903878A JP5903878A JPS54150509A JP S54150509 A JPS54150509 A JP S54150509A JP 5903878 A JP5903878 A JP 5903878A JP 5903878 A JP5903878 A JP 5903878A JP S54150509 A JPS54150509 A JP S54150509A
Authority
JP
Japan
Prior art keywords
cylinder
hole
boring
holes
circle
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
JP5903878A
Other languages
Japanese (ja)
Inventor
Itsuo Ikeno
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 JP5903878A priority Critical patent/JPS54150509A/en
Publication of JPS54150509A publication Critical patent/JPS54150509A/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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0002—Cylinder arrangements
    • F02F7/0007—Crankcases of engines with cylinders in 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six

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 obtain products in high accuracy, by inhibiting the distortion of the press-in of the sleeves of cylinder holes by pressing in a sleeve after boring one cylinder hole and by successively repeating said work to the following cylinder holes. CONSTITUTION:In a multicylinder cylinder block in a light alloy provided with a number of cylinder holes 10a-10c, lower holes 10a'-10c', to which grinding allowance for boring is shaped, are beforehand drilled to each cylinder hole 10a- 10c in a line. A cylinder hole 10a'', which true degree of the circle is heightened, is formed by first boring the cylinder hole 10a, and a sleeve 20 is pressed in the hole. Even if the next cylinder hole 10b (the lower hole 10b') shrinks in the cylinder row direction as shown in 10b'' by the press-in of the sleeve 20 and the true degree of the circle of an inner diameter is distorted to some extent, a cylinder hole with the high true degree of the circle can be shaped by boring grinding allowance as shown in a chain line 10b'''. Products can be obtained by successively repeating the same work as mentioned above about the following cylinder holes.
JP5903878A 1978-05-17 1978-05-17 Preparation of multicylinder cylinder-block Pending JPS54150509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5903878A JPS54150509A (en) 1978-05-17 1978-05-17 Preparation of multicylinder cylinder-block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5903878A JPS54150509A (en) 1978-05-17 1978-05-17 Preparation of multicylinder cylinder-block

Publications (1)

Publication Number Publication Date
JPS54150509A true JPS54150509A (en) 1979-11-26

Family

ID=13101722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5903878A Pending JPS54150509A (en) 1978-05-17 1978-05-17 Preparation of multicylinder cylinder-block

Country Status (1)

Country Link
JP (1) JPS54150509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257757U (en) * 1985-09-30 1987-04-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257757U (en) * 1985-09-30 1987-04-10
JPH0415967Y2 (en) * 1985-09-30 1992-04-09

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