JPS57173540A - Piston of reciprocating engine - Google Patents

Piston of reciprocating engine

Info

Publication number
JPS57173540A
JPS57173540A JP5820981A JP5820981A JPS57173540A JP S57173540 A JPS57173540 A JP S57173540A JP 5820981 A JP5820981 A JP 5820981A JP 5820981 A JP5820981 A JP 5820981A JP S57173540 A JPS57173540 A JP S57173540A
Authority
JP
Japan
Prior art keywords
wall member
piston
side wall
top wall
groove
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
JP5820981A
Other languages
Japanese (ja)
Inventor
Tsuyoshi Watanabe
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.)
Showa Corp
Yamaha Motor Co Ltd
Original Assignee
Showa Seisakusho Co Ltd
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 Showa Seisakusho Co Ltd, Yamaha Motor Co Ltd filed Critical Showa Seisakusho Co Ltd
Priority to JP5820981A priority Critical patent/JPS57173540A/en
Publication of JPS57173540A publication Critical patent/JPS57173540A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00Pistons 
    • F02F3/0015Multi-part pistons
    • F02F3/003Multi-part pistons the parts being connected by casting, brazing, welding or clamping

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE:To eliminate the necessity for casting work of a piston and facilitate its manufacture, by combining a disc shaped top wall member with a side wall member, successively provided to the lower part of said top wall member, simultaneously applying expansion work to the side wall member, providing boss parts and piston pin holes and forming the piston. CONSTITUTION:A piston 1 is constituted by a top wall member 2, forming a combustion chamber, and a cylindrical side wall member 3, successively provided to the lower surface of said top wall member. Then the side wall member 3 is applied expansion work to form boss parts 4, protruding to the inside of the cylinder, further a piston pin hole 5 is formed to the boss part 4. While a groove 6 for a clip, stopping a piston pin, and a relief groove 7, for removing and mounting the clip, are further provided. Further said both members 2, 3 are combined by welding and cementing or the like, and piston ring grooves 8 are formed to the periphery in the vicinity of this combination part, further oil holes 9 are drilled to the bottom of an oil ring groove in the lowermost stage. In this way, the necessity for casting work can be eliminated to facilitate manufacture.
JP5820981A 1981-04-17 1981-04-17 Piston of reciprocating engine Pending JPS57173540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5820981A JPS57173540A (en) 1981-04-17 1981-04-17 Piston of reciprocating engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5820981A JPS57173540A (en) 1981-04-17 1981-04-17 Piston of reciprocating engine

Publications (1)

Publication Number Publication Date
JPS57173540A true JPS57173540A (en) 1982-10-25

Family

ID=13077649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5820981A Pending JPS57173540A (en) 1981-04-17 1981-04-17 Piston of reciprocating engine

Country Status (1)

Country Link
JP (1) JPS57173540A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172771A (en) * 1983-10-29 1985-09-06 エ−イ−・ピ−エルシ− Piston
DE10255892A1 (en) * 2002-11-29 2004-06-09 Mahle Gmbh Piston for combustion engine has oil trap on outer surfaces of boss close to zenith of gudgeon pin borings
DE102007045465A1 (en) * 2007-09-24 2009-04-02 Federal-Mogul Nürnberg GmbH Piston with oil supply channel for hub bores

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172771A (en) * 1983-10-29 1985-09-06 エ−イ−・ピ−エルシ− Piston
JPH0331956B2 (en) * 1983-10-29 1991-05-09 Ae Plc
DE10255892A1 (en) * 2002-11-29 2004-06-09 Mahle Gmbh Piston for combustion engine has oil trap on outer surfaces of boss close to zenith of gudgeon pin borings
DE102007045465A1 (en) * 2007-09-24 2009-04-02 Federal-Mogul Nürnberg GmbH Piston with oil supply channel for hub bores
US8695559B2 (en) 2007-09-24 2014-04-15 Federal-Mogul Nurnberg Gmbh Piston having oil supply channel for hub bore holes

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