CHANNEL PUMP WITH PLANETARY GEARING Russian patent published in 2015 - IPC F04B43/12 

FIELD: engines and pumps.

SUBSTANCE: invention relates to channel pump (1) for feed of fluid fed via hose. It comprises housing (2), drive (7), carrier (8) spinning relative to carrier (8) and several puller rollers (3) articulated with carrier (8) to be driven by drive (7) via gearing (6). The latter comprises sun gear (30) and first pinion (16) rigidly engaged with appropriate puller roller (3). Spinning puller rollers (3) at working pump clamp hose fitted in said pump to press is against counter support (4), hence, force the fluid in hose in feed direction. Note here that every puller roller (3) engages, apart from first pinion (15), with at least second pinion (31) engaged with inner periphery (2c), as a hollow wheel, of housing (2) to make carrier (8) to be revolved by drive (7). Second pinion (31) of every puller roller (3) is provided with elastomer ring (32) arranged at outer periphery contact via said ring, with geometrical closure, with smooth inner periphery (2c) of housing (2).

EFFECT: simplified hose fitting in the pump.

14 cl, 6 dwg