LandOfFree - US Patents - Listing for Rotary expansible chamber devices,Grooved abutting cylinder-rotating member end surfaces

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...

Apparatus for noise suppression in a gear pump

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Annular groove or recess completely encircles rotation axis

Automotive vacuum pump

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Annular groove or recess completely encircles rotation axis

Axially centering means for fluid machines

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...

Bearing lubrication system for gear pump having clearance betwee

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces

Compressor with extended area between suction port and suction g

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Annular groove or recess completely encircles rotation axis

Device for sealing the penetration of drive shaft/housing in rot

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces

External gear pump with drive gear seal

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Non-working fluid directed to groove

Fluid compressor having lubrication for two spiral blade compres

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Groove communicates with vane slot

Fuel pump assembly

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Non-working fluid directed to groove

Gas compressor

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Grooved working member surface

Gear pump

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces

Gear pump having fluid deaeration capability

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Non-working fluid directed to groove

Gear pump having fluid deaeration capability

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Radial groove

Gear pump including introduction paths and return paths

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...

Gear pump or motor with bypass throttle passage to prevent cavit

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...

Gear pump with groove in end wall beginning at outer periphery o

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Grooved working member surface

Gear pump with leakage fluid intermittently communicated to expa

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces

Gear ring pump having a housing wall with a hollow cone recess

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Grooved working member surface

Gear wheel pump with reduced power requirement