136657 ⎘
Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable the resiliently-deformable wall being part of the inner member, e.g. of a rotary piston
Pump device
#2Curved flexible impeller
#3Pump device with deformable pump ring
#4Pump device
#5Rotary pump with deformable pump ring
#6Pump device with pump ring having curved contact portion
#7Pump device with deformable pump ring
#8Progressive cavity pump/motor stator including framework elements and grooves defining chambers
#9Self-aligning rotary pistone machine
#10Rotary motion machine