Scroll-type fluid displacement device having high built-in volum
Seal for high pressure pump or the like
Self compensating adjustable fit progressing cavity pump for...
Series for compressed air motors with torque which can be...
Spherical fluid machine with control mechanism
Split gear pump mechanism with gear offset
Thrust balancing device for a progressing cavity pump
Vane pump with brittle vanes and rough finished housing surface
Variable capacity scroll type fluid displacement apparatus
Water jet type air compressor system, its starting method,...