SELF-ACTING VALVE Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention relates to compressors and pumps and it is designed for distribution of gases in air, gas, refrigerating and other compressors operating at pressure differential of working medium not less than 2.5 MPa. Proposed self-acting valve contains seat and lift limiter with through channels arranged in pairs along common vertical axis. Said lift limiter is provided with through holes displaced relative to through channels and is furnished with spring-loaded shutoff member. The later is arranged in cavity of lift limiter. Guide bevel is made on side wall of cavity. Bottom surface of lift limiter cavity is made inclined relative to support surface of seat. Slot is made from side of vertex of angle of tilting of cavity bottom surface to its side wall to install spring of shutoff member. Guide bevel and said slot are arranged opposite to each other. EFFECT: reduced power consumption of compressor, improved temperature conditions, decreased operating noises. 2 dwg