LandOfFree - US Patents - Listing for Rotary expansible chamber devices

Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion

Gear pump having an isolator to protect its bearings

Rotary expansible chamber devices – Shaft or trunnion lubrication or sealing by diverted working...

Gear pump having bearings with cooling ducts

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 – Methods

Gear pump having improved low temperature operation

Rotary expansible chamber devices – With mechanical sealing

Gear pump having members with different hardnesses

Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers

Gear pump having multiple outputs

Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers

Gear pump having multiple outputs

Rotary expansible chamber devices – Specific material

Gear pump having optimal axial play

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 – Interengaging rotating members – Like rotary members

Gear pump or motor

Rotary expansible chamber devices – Working chamber surface expressed mathematically

Gear pump or motor having compensation for volume flow fluctuati

Rotary expansible chamber devices – Interengaging rotating members – Multiple units

Gear pump or motor units with sleeve coupling for shafts

Rotary expansible chamber devices – Interengaging rotating members

Gear pump or motor with a shaftless gear

Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion

Gear pump or motor with axially movable bearing blocks

Rotary expansible chamber devices – Shaft or trunnion lubrication or sealing by diverted working...

Gear pump or motor with bearing passage for shaft lubrication

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 – With mechanical sealing – Seal on cylinder engaging rotary member separates inlet and...

Gear pump or motor with hard layer in interior casing surface

Rotary expansible chamber devices – Shaft or trunnion lubrication or sealing by diverted working...

Gear pump or motor with low pressure bearing lubrication