143429 ⎘
Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member orbits or wobbles relative to the other member which rotates around a fixed axis
ROTOR STATOR PUMP
#2Rotary Machines With Teardrop-Shaped Rotors
#3PROGRESSIVE CAVITY PUMP WITH PUMP RADIALLY WITHIN ELECTRIC MOTOR
#4Axial Load In Helical Trochoidal Rotary Machines
#5Mud motor rotor with core and shell
#6Rotary Machines With Teardrop-Shaped Rotors
#7Helical trochoidal rotary machines with improved solids handling
#8Axial load in helical trochoidal rotary machines
#9Fixed-eccentricity helical trochoidal rotary machines
#10Mud motor rotor with core and shell
#11Cylindrical symmetric volumetric machine with an inlet ventilator
#12Cylindrical symmetric volumetric machine
#13Stator and uniaxial eccentric screw pump
#14Eccentric screw pump
#15Synchronized conical screw compressor or pump
#16Conical screw machine with rotating inner and outer elements that are longitudinally fixed
#17Eccentric screw pump with overpressure protection
#18Uniaxial eccentric screw pump
#19Progressing cavity pump with wobble stator and magnetic drive