JPS571846A - Flat type counterweight used for internal combustion engine - Google Patents

Flat type counterweight used for internal combustion engine

Info

Publication number
JPS571846A
JPS571846A JP7640580A JP7640580A JPS571846A JP S571846 A JPS571846 A JP S571846A JP 7640580 A JP7640580 A JP 7640580A JP 7640580 A JP7640580 A JP 7640580A JP S571846 A JPS571846 A JP S571846A
Authority
JP
Japan
Prior art keywords
piston
circumferential surface
outer circumferential
center
combustion engine
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
JP7640580A
Other languages
Japanese (ja)
Other versions
JPS6257851B2 (en
Inventor
Mikimasa Saigou
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.)
Hino Motors Ltd
Original Assignee
Hino Motors 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 Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP7640580A priority Critical patent/JPS571846A/en
Publication of JPS571846A publication Critical patent/JPS571846A/en
Publication of JPS6257851B2 publication Critical patent/JPS6257851B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
    • F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PURPOSE:To compact the engine by mounting a projecting section on an outer circumferential surface of a counter body so that a piston is reciprocated vertically keeping a predetermined clearance between the piston and a lower end of a skirt section of the piston when the piston is positioned near a bottom dead center. CONSTITUTION:In positional relationship between the lower end 28 of the skirt section of the piston 23 and an outer circumferential surface 16 in an upper section of the flat counterweight 10, the center P of the outer circumferential surface 16 is located on a straight line connecting the center of a piston-pin 26 and an axial core of a crankshaft 24, the clearance e is formed between the lower end 28 of the skirt section of the piston 23 and the outer circumferential surface 16, the piston 23 is positioned where upper than the bottom dead center before and after the center P of the outer circumferential surface 16 reaches the straight line connecting the center of the piston-pin 26 and the axial core of the crankshaft 24 and the clearance e is kept when the piston 23 is located at the bottom dead center.
JP7640580A 1980-06-06 1980-06-06 Flat type counterweight used for internal combustion engine Granted JPS571846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7640580A JPS571846A (en) 1980-06-06 1980-06-06 Flat type counterweight used for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7640580A JPS571846A (en) 1980-06-06 1980-06-06 Flat type counterweight used for internal combustion engine

Publications (2)

Publication Number Publication Date
JPS571846A true JPS571846A (en) 1982-01-07
JPS6257851B2 JPS6257851B2 (en) 1987-12-03

Family

ID=13604344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7640580A Granted JPS571846A (en) 1980-06-06 1980-06-06 Flat type counterweight used for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS571846A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6380316U (en) * 1986-11-15 1988-05-27
JPS63147919U (en) * 1986-11-15 1988-09-29
JP2005069123A (en) * 2003-08-26 2005-03-17 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2006307827A (en) * 2005-03-30 2006-11-09 Honda Motor Co Ltd Internal combustion engine
JP2012247044A (en) * 2011-05-31 2012-12-13 Nissan Motor Co Ltd Balance weight arrangement structure of crank shaft of internal combustion engine
DE202021100494U1 (en) * 2021-02-02 2021-02-16 Liebherr-Components Colmar Sas Crankshaft with at least one counterweight

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6380316U (en) * 1986-11-15 1988-05-27
JPS63147919U (en) * 1986-11-15 1988-09-29
JP2005069123A (en) * 2003-08-26 2005-03-17 Matsushita Electric Ind Co Ltd Hermetic compressor
JP2006307827A (en) * 2005-03-30 2006-11-09 Honda Motor Co Ltd Internal combustion engine
US7343893B2 (en) * 2005-03-30 2008-03-18 Honda Motor Co., Ltd. Internal combustion engine
JP4587938B2 (en) * 2005-03-30 2010-11-24 本田技研工業株式会社 Internal combustion engine
JP2012247044A (en) * 2011-05-31 2012-12-13 Nissan Motor Co Ltd Balance weight arrangement structure of crank shaft of internal combustion engine
DE202021100494U1 (en) * 2021-02-02 2021-02-16 Liebherr-Components Colmar Sas Crankshaft with at least one counterweight
EP4036438A1 (en) 2021-02-02 2022-08-03 Liebherr-Components Colmar SAS Crankshaft with at least one counterweight
US11732775B2 (en) 2021-02-02 2023-08-22 Liebherr-Components Colmar Sas Crankshaft having at least one counterweight

Also Published As

Publication number Publication date
JPS6257851B2 (en) 1987-12-03

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