CRANKSHAFT AND INTERNAL-COMBUSTION ENGINE

A crankshaft which has relatively high rigidity and in which induction hardening can be easily performed on a crank pin at low cost and an internal-combustion engine including the crankshaft are provided. A crankshaft 25 includes a first part 51 formed by integrally forming a first crank web 31 and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OTA, Toshiya, FUKUSHIGE, Takahiro, OGA, Hirotsugu, TAKAMI, Koichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A crankshaft which has relatively high rigidity and in which induction hardening can be easily performed on a crank pin at low cost and an internal-combustion engine including the crankshaft are provided. A crankshaft 25 includes a first part 51 formed by integrally forming a first crank web 31 and a crank pin 33 and a second part 52 including a second crank web 32 in which a hole 37 in which the crank pin 33 is inserted is formed. The crank pin 33 includes a first pin portion 33a located inside the pin hole 37 of the second crank web 32 and a second pin portion 33b located outside the pin hole 37 of the second crank web 32. At least a portion of the first pin portion 33a and the second pin portion 33b include an induction hardening layer 61.