TRI-LOBE FLOWMETER ROTOR WITH PARTIALLY OPEN CORE STRUCTURE

摘要

There is a gear rotor for use in a positive displacement flowmeter of the type described. The rotor has an external wall profile 8 forming three equally spaced lobes 9 and a partially open core structure inside said profile with internal cavities 15, 15A defined between webs 13, 14 extending from a central hub 12 of said rotor to said wall profile 8.