ENHANCED BI-HELICAL TOOTHED WHEEL WITH VARIABLE HELIX ANGLE AND NON-ENCAPSULATING TOOTH PROFILE FOR HYDRAULIC GEAR

Screw Fluid Machine

SUPERCHARGER ROTORS FOR INCREASED ENGINE POWER OUTPUT

Rotary Machines With Teardrop-Shaped Rotors

Parallel connected multiple shaft roots vacuum pump

GEROTOR PUMP

SCREW COMPRESSOR AND REFRIGERATION APPARATUS

Hypotrochoid positive-displacement machine

Screw assembly for a triple screw pump and screw pump comprising said assembly

DEVICES FOR DISPENSING FLUIDS

Sealing In Helical Trochoidal Rotary Machines

SUPERCHARGER ROTORS FOR INCREASED ENGINE POWER OUTPUT

VOLUME EXPANSION FOR CAVITATION REDUCTION IN A GEAR PUMP MESH

SCREW COMPRESSOR

Rotary engine rotor and method

Axial Load In Helical Trochoidal Rotary Machines

Mud motor rotor with core and shell

Rotary Machines With Teardrop-Shaped Rotors

Screw compressor and screw rotor

Scroll compressor

Roots pump containing rotors that capture and discharge a foreign substance

SCROLL COMPRESSOR

Sealing in helical trochoidal rotary machines

Liquid supply type screw compressor

Vane pump with a notch provided at a suction port

Hypotrochoid positive-displacement machine

Screw compressor having a screw rotor whose pitch changes in an axial direction from a suction end surface toward a discharge end surface

Hydrostatic pressure support for spherical pump rotor and spherical pump with same

ROTOR AND PUMP

Additively manufactured rotors for superchargers and expanders

Helical trochoidal rotary machines with improved solids handling

Axial load in helical trochoidal rotary machines

Scroll compressor and air conditioner having the same

Dry pump for gas and set of a plurality of dry pumps for gas

Method and screw spindle pump for delivering a gas/liquid mixture

Rotary pump with rotor bearing ring

Lobe pump

Screw rotor and screw-type fluid machine main body

Rotary piston compressor and system for temperature conditioning with rotary piston compressor

Fixed-eccentricity helical trochoidal rotary machines

Rotor structure of screw compressor and inverter screw compressor with same

Mud motor rotor with core and shell

Helical trochoidal rotary machines

Helical trochoidal rotary machines with offset

COMPRESSOR

Rotary machine

Sealing in helical trochoidal rotary machines

Screw rotor and fluid machine body

Screw rotor, fluid machine main body, and fluid machine

Screw Compressor and Air Conditioning Unit

VANE PUMP

Rotary compressor with wear avoiding portion

Scavenging centrifugal baffle pump

Dry-running gas vane pump having a first fluid outlet and a second fluid outlet associated with the pump chamber with the second fluid outlet permanently open to atmosphere without being impeded

Enhancing fluid flow in gerotor systems

Rotary engine rotor with lip and a recess on the flank

COMPRESSOR

Equal-walled gerotor pump for wellbore applications

Rotary internal combustion engine with unequal volumetric ratios

MOTOR-OPERATED COMPRESSOR

Scroll compressor

Equal-walled gerotor pump for wellbore applications

Optimized helix angle rotors for roots-style supercharger

Compressor

Co-rotating scroll compressor

Motor vehicle vacuum pump arrangement

COMPRESSOR

COMPRESSOR

Scroll fluid machine that maintains control accuracy of back pressure

Internally rotating gear pump

Scroll compressor with integral driving shaft and eccentric shaft

VACUUM-PUMP ROTOR

Anti-locking mechanism of spherical compressor rotor

Curved flexible impeller

Vane oil pump with a relief passage covered by an inner rotor to prevent flow to a discharge port and a rotor passage providing flow to said port

Rotary piston and cylinder device with flared curved rotor surface

Rotary piston and cylinder device with single stator side

Vacuum pump screw rotors with symmetrical profiles on low pitch sections

Rotary piston and cylinder with the rotor including a formation and bearing arrangement

Method for modifying performance of rotor profile by adjusting meshing line segments

Stator and rotor profile for improved power section performance and reliability

Fluid machine

Vane pump

Oscillating piston-type compressor

Positive displacement rotary devices

Scroll compressor with improved scroll curves

Rotor for a positive displacement compressor

Internal combustion engine with rotor having offset peripheral surface

Rotor with sliding vane has a different width of vane slot extended from the longitudinal axis to the outer surface of the rotor body

Method for impregnating the stator of a progressive cavity assembly with nanoparticles

Variable volume chamber for interaction with a fluid

Epitrochoidal vacuum pump

Rotary machine with pressure relief mechanism

Pump for dispensing liquid or semi-liquid or semi-solid food products and machine comprising said pump

Hybrid profile supercharger rotors

Compressor having a lubrication surface formed on a roller thereof

BLADE CONTOUR OF A ROTOR FOR A LIQUID RING PUMP

Gear pump with gear having interspersed vanes

GEAR PUMP

Vane spacing for a variable displacement oil pump

Pneumatic motor for a pneumatic tool

GEAR PUMP AND MANUFACTURING METHOD OF THE SAME

System and Method for Improved Performance of Gerotor Compressors and Expanders

Compressor

Scroll compressor having wrap with reinforcing portion

Internal gear pump

SEGMENTED ROTOR FORM FOR SUPERCHARGERS AND EXPANDERS

Pair of co-operating screw rotors

Positive displacement rotary devices with uniform tolerances

Volume pulsed deformation plasticating and conveying method and device by eccentric rotor

Optimized helix angle rotors for roots-style supercharger

Cylinder-rotation compressor with a discharge valve

Oil delivery system for the lubrication of a chainsaw

Actuator of a rotary positive displacement machine

Anti-locking mechanism of spherical compressor rotor, anti-locking power mechanism of spherical compressor, and spherical compressor

Compressor and method for producing compressor

Equal-walled gerotor pump for wellbore applications

Equal-walled gerotor pump for wellbore applications

Gear pump with improved pump inlet

Rotary volumetric machine with three pistons

Variable diameter stator and rotor for progressing cavity motor

Vane rotary compressor

Scroll compressor

Ignition engine of the rotary type with a double rotation center

Gerotor with reduced leakage

Positive displacement rotary devices with uniquely configured voids

Positive displacement rotary devices with uniform tolerances

Oscillating piston engine having a polygonal piston

Rotary machine

Injection port and orbiting-side wrap for a scroll compressor

Scroll compressor with an arcuate and a logarithmic spiral sections

Pump having a housing and a rotor capable of rotating in the housing

Planetary rotor machine manifold

Internal orbital engine

Elliptical gear pump fluid driving apparatus

Fixed-vane positive displacement rotary devices

Rotary internal combustion diesel engine

Pendulum-slide pump having variable groove radii greater in transition than therebetween

Vane pump

Internal gear pump

Rotary internal combustion engine

Positive displacement flow meter

Scroll compressor

Rotary internal combustion engine

Rotor type pump

TURBINE HAVING COOPERATING AND COUNTER-ROTATING ROTORS IN A SAME PLANE

Six-blade biaxial rotary positive-displacement pump

Sliding vane pump with improved rotor profile

Vane air motor

Gerotor hydraulic pump with fluid actuated vanes

Rotary internal combustion engine

Optimized helix angle rotors for roots-style supercharger

Optimized helix angle rotors for Roots-style supercharger

Optimized helix angle rotors for Roots-style supercharger

Surgical pneumatic motor

Coupling of driver/driven shafts of a motor and thrust isolation

Compressor formed by identical rotors with circular arcs