JPS5698531A - Crankshaft offset engine and power train for automobile - Google Patents

Crankshaft offset engine and power train for automobile

Info

Publication number
JPS5698531A
JPS5698531A JP17356679A JP17356679A JPS5698531A JP S5698531 A JPS5698531 A JP S5698531A JP 17356679 A JP17356679 A JP 17356679A JP 17356679 A JP17356679 A JP 17356679A JP S5698531 A JPS5698531 A JP S5698531A
Authority
JP
Japan
Prior art keywords
crankshaft
stroke
axis
engine
automobile
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
JP17356679A
Other languages
Japanese (ja)
Inventor
Yujiro Oshima
Masao Kataoka
Taku Noda
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.)
Toyota Central R&D Labs Inc
Original Assignee
Toyota Central R&D Labs Inc
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 Toyota Central R&D Labs Inc filed Critical Toyota Central R&D Labs Inc
Priority to JP17356679A priority Critical patent/JPS5698531A/en
Publication of JPS5698531A publication Critical patent/JPS5698531A/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
    • F02F7/0002—Cylinder arrangements
    • F02F7/0019—Cylinders and crankshaft not in one plane (deaxation)
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power

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 lower the sliding friction loss of an engine, by offsetting the axis of a crankshaft from the center of the cylinder at a particular rate of the stroke of a piston, and thereby reducing the side force produced during the expansion stroke. CONSTITUTION:An engine E1 is of the in-line, four-stroke cycle type having a plurality of cylinders 4 disposed in line along the axis of a crankshaft 1, and pistons 5 fitted in respective cylinders 4 in freely slidable manner are connected to respective crank pins 3 by connecting rods 6. Here, the axis of the crankshaft 1 is offset from the center lines of respective cylinders 4 in the direction of the side force R which is acted to urge the pistons 5 onto the inner surface of respective cylinders 4, and the rate of offset (a) is selected to be 10-40% of the piston stroke.
JP17356679A 1979-12-29 1979-12-29 Crankshaft offset engine and power train for automobile Pending JPS5698531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17356679A JPS5698531A (en) 1979-12-29 1979-12-29 Crankshaft offset engine and power train for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17356679A JPS5698531A (en) 1979-12-29 1979-12-29 Crankshaft offset engine and power train for automobile

Publications (1)

Publication Number Publication Date
JPS5698531A true JPS5698531A (en) 1981-08-08

Family

ID=15962922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17356679A Pending JPS5698531A (en) 1979-12-29 1979-12-29 Crankshaft offset engine and power train for automobile

Country Status (1)

Country Link
JP (1) JPS5698531A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664077A (en) * 1984-09-28 1987-05-12 Fuji Jukogyo Kabushiki Kaisha Reciprocating internal combustion engine
JP2008023668A (en) * 2006-07-21 2008-02-07 Sodick Co Ltd Wire positioning device
WO2009119712A1 (en) 2008-03-28 2009-10-01 株式会社 豊田自動織機 Balancer mechanism for straight engine
JP2014046438A (en) * 2012-09-03 2014-03-17 Makita Corp Impact tool
US10052747B2 (en) 2012-09-03 2018-08-21 Makita Corporation Hammer tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664077A (en) * 1984-09-28 1987-05-12 Fuji Jukogyo Kabushiki Kaisha Reciprocating internal combustion engine
JP2008023668A (en) * 2006-07-21 2008-02-07 Sodick Co Ltd Wire positioning device
WO2009119712A1 (en) 2008-03-28 2009-10-01 株式会社 豊田自動織機 Balancer mechanism for straight engine
EP2256315B1 (en) * 2008-03-28 2016-07-20 Kabushiki Kaisha Toyota Jidoshokki Balancer mechanism for straight engine
JP2014046438A (en) * 2012-09-03 2014-03-17 Makita Corp Impact tool
US10052747B2 (en) 2012-09-03 2018-08-21 Makita Corporation Hammer tool

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