FIELD: engines and pumps.
SUBSTANCE: set of inventions relates to pump engineering. Rotary pump comprises impellers not fitted on central shaft. In particular, every impeller has separate hub to engage with adjacent hub of the other impeller. Said hubs run in synchronism to spin said impellers.
EFFECT: material savings, accelerated assembly.
20 cl, 7 dwg
Authors
Dates
2015-03-10—Published
2010-07-30—Filed