ISO 6623:1986Withdrawn

Internal combustion engines — Piston rings — Scraper rings

Moteurs à combustion interne — Segments de piston — Segments racleurs mixtes

Abstract / scope

Specifies the essential dimensional features of N-, NM-, E- and EM-scraper piston ring types. Dimension tables 7 and 8 offer the choice of two radial wall thicknesses: "regular" (table 7) and "D/22" (table 8). The requirements apply to scraper rings for reciprocating internal combustion piston engines, up to and including 200 mm diameter. May be used for piston rings for compressors working under similar conditions.

Life cycle

Replaced by

ISO/DIS 6621-2Deleted (project abandoned)Internal combustion engines — Piston rings — Part 2: Inspection measuring principlesInternational Standard · ISO/TC 22 ISO/DIS 6623Deleted (project abandoned)Internal combustion engines — Piston rings — Scraper rings made of cast ironInternational Standard · ISO/TC 22 ISO/DIS 8847Deleted (project abandoned)Small craft — Steering gear — Wire rope and pulley systemsInternational Standard · ISO/TC 188 ISO 6623:2004WithdrawnInternal combustion engines — Piston rings — Scraper rings made of cast ironInternational Standard · Published 22 Jan 2004 · ISO/TC 22