Internal gear or annular gear pump i.e. gerotor pump, has semi-cylindrical chambers whose bottom portions are arranged in suction and pressure regions and separation region, and connected with suction and pressure sides, respectively

摘要

The pump has internal toothed ring gears (5) whose teeth are formed as cylindrical rollers (25) and arranged in semi-cylindrical chambers (26) of the ring gears, which opens to a workspace (10) of the ring gears. Bottom portions (27) of the semi-cylindrical chambers located in suction and pressure regions (16, 17) are in connection with the suction and pressure sides of the pump, respectively. Another bottom portion of the chambers arranged in a separation region (18) is connected with the pressure side, where the separation region is formed between the suction and pressure regions.