CASTING CONNECTING ROD

• Main Authors: OTSUKA KIMITERU, UENO TAISEI
• Format: Patent
• Language: English
• Published: 17.10.1995
• Edition: 6
• Subjects: 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

PURPOSE:To improve the strength more than the I-section structure since the generated stress is dispersed, by making a connecting part in a hollow structure, and opening further partially the connecting part by a casting connecting rod which forms the smaller end and the larger end integrally. CONSTITUTION:The connecting part 8 of a connecting rod is made in a hollow structure, and the connecting part 8, the smaller end 1, and the larger end 11 are formed integrally by a casting. The outer surface of the connting part 8 can be made in a smooth curved surface by making in a hollow structure, the tip of the flange where a local stress concentration is liable to generate can be eliminated in the form, and a stress concentration at the foot of the connecting part, and the increase of the stress by the bad influence of an eccentric load can be relaxed. And by manufacturing in a casting, the connecting part 8, the smaller end 1, and the larger end 11 can be formed smooth integrally, so as to eliminate an uneven surface or the unevenness of quality generated at a welding part and the like. Consequently, the stress distribution can be smoothed, the fatigue strength is improved, and it can be used to an engine with a severe condition more than an I-section structure in the same section area.