Method of increasing the fatigue strength of crankshafts

Details Method of increasing the fatigue strength of crankshafts Method of increasing the fatigue strength of crankshafts

1990-05-18

1991-04-23

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29557, F16C 310

Patent

active

050090011

ABSTRACT:
A method of increasing the fatigue strength of crankshafts for reciprocating engines, especially internal combustion engines, is provided. When converting naturally aspirating production engines to supercharging to increase the power, the fatigue strength of the crankshaft quickly reaches a limit. Since for reasons of economy it is desirable not to alter the geometry of the crackshaft and to avoid expensive fine burnishing to increase the quality of the surface, and hence the fatigue strength associated therewith, the transition radius from the crankshaft pin to the crank web is inductively surface hardened, and at the same time the finish quality of the surface is reduced. The increased costs for the hardening are balanced by the reduced surface machining that is required.

REFERENCES:
patent: 2285772 (1942-06-01), Groene et al.
patent: 3704636 (1972-12-01), Piech
patent: 4269551 (1981-05-01), Kralowetz
patent: 4641546 (1987-02-01), Mettler

Affiliated with

Also associated with

Rating

Method of increasing the fatigue strength of crankshafts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of increasing the fatigue strength of crankshafts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of increasing the fatigue strength of crankshafts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1613359