STOPPER STRUCTURE OF COMBINED OIL RING

• Main Author: NARUSE YOSHIO
• Format: Patent
• Language: English
• Published: 30.06.1997
• Edition: 6
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; CYLINDERS; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To employ a general coil expander and secure sufficient strength of a stopper. SOLUTION: This combined oil ring 10 is constituted of an oil ring 11 and a coil expander 12, and a curved rod 27 is passed through the coil expander 12, being laid across a pair of abutment end parts 24, 25. A stopper member 30 is constituted of a hole inserting part 31 and a part 32 to be clamped which protrudes from one end of the hole inserting part 31. Two surfaces 32a, 32b of the part 32 to be clamped which are parallel to each other is held between a pair of abutment end parts 12a, 12b of the coil expander 12 and the hole inserting part 31 is fixed in a stopper member fixing hole 34 which is formed at the oil ring groove bottom surface 5 of a piston 1. The curved rod 27 is passed through a curved rod inserting hole 33 formed in the part 32 to be clamped. The hole inserting pave 31 may be inserted in the oil relief hole of the piston 1. A notch may be formed at the part to be clamped in place of the curved rod inserting hole.