Oil pump
Oil pump
Oil pump and method of assembling the oil pump
Orbital device
Orbital engine with stabilizing plate
Orbital machine with cooperating lobe and recess guide means
Orbital motor
Orbital piston engine
Orbital pump with inlet and outlet through the rotor
Orbital rotor compressor having an inlet passage in the rotor
Oribital pump with fluid flow control
Outer envelope trochoidal rotary device having a rotor assembly
Outer envelope trochoidal rotary device having a two piece rotor