|7185625||Rotary piston power system|
The rotary piston power system includes a housing having a drum and a cover rotatably mounted on the drum. The drum has high pressure and low pressure ports defined in its peripheral wall and a central separator wall having arcuate end faces and a pair of semicylind...
|7111606||Rotary positive displacement device|
A device to convert energy having exterior and interior rotors where the number of legs (Λ) of an interior rotor divided by the number of chambers (X) defined by the fins of the outer rotor is equal to the effective radius of the inner reference circle ri
|4392797||Device for lubricating a rotary piston air pump|
A device for lubricating a rotary piston air pump driven by an engine penetrated by lubricating oil return conduits. The device includes a rotary housing including a casing and two side walls and rotatably mounted on a stationary axle having an eccentric ...
|4316439||Rotary engine with internal or external pressure cycle|
Disclosed herein is a rotary engine operable as an internal combustion engine or powered from an external source, the engine comprising essentially three parts: (1) an outer housing or body, (2) a valve shaft extending axially through the body and having ...
|4235217||Rotary expansion and compression device|
A rotary gas expansion and compression device having a pair of rotors provided respectively with external and internal flutes differing in number by one, the form of which provides a continuous vertical contact. The rotors are meshed so that they form clo...