Inlet for a positive displacement pump

Inner rotor of internal gear pump having convex small...

Interengaging rotors having internal axes and specific sidewall

Internal axis crankless rotary piston engine

Internal axis single-rotation machine

Internal axis single-rotation machine with intermeshing internal

Internal combustion engine with oil pump gear surrounding and dr

Internal gear machine for reversed operation in a closed...

Internal gear oil pump made of aluminum alloys

Internal gear pump

Internal gear pump

Internal gear pump

Internal gear pump

Internal gear pump and an inner rotor of such a pump

Internal gear pump for wide speed range

Internal gear pump having a feed groove aligned with the roots o

Internal gear pump including a crescent

Internal gear pump motor

Internal gear pump with branched intake plenum

Internal gear pump with recesses on the gear bearing surfaces