impeller
Fluid-moving blade wheel
An impeller is a rotating component with blades or vanes that moves fluid by spinning.
Found in pumps, turbines, and jet engines, impellers push water, air, or other fluids outward or forward: The boat's impeller needs replacing.
Distinguished from propellers, which pull fluid past stationary blades, impellers work within enclosed housings.
Sharp flat cutting parts
- vaneWind direction indicator
- rotorSpinning mechanical assembly
- shaftNarrow vertical passage
- hubCentral connection point
shroud · inducer · diffuser · volute · casing · seal · bearing · keyway
Unbroken forward movement
- velocityDirected rate of motion
- circulationMovement through a system
- vortexRotating fluid column
- turbulenceChaotic flow patterns
laminar · discharge · pressure · head · cavitation · hydrodynamics · viscosity · Reynolds
External boat engine
- inboardWithin a vessel's hull
- sternStrict or ship's aft
- hullOuter covering or frame
- vesselReceptacle for contents
boat · yacht · water jet · wake · thrust · pitch · corrosion · fouling
Directed away from axis
- submersibleUnderwater exploration vehicle
- slurrySemifluid mixture of solids
- headUppermost body part
- pressureForce upon contact
capacity · priming · cavitation · efficiency · volute · casing · seal · wear
Rapid rotation around axis
- rotationTurning on an axis
- RPMTurns in sixty seconds
- torqueRotational force measurement
- centrifugalDirected away from axis
radial · axial · thrust · whirl · gyration · revolution · speed · momentum
Not closed
- closedNot accessible now
- axialAlong a rotation line
- radialEmanating from center
- centrifugalDirected away from axis
Technical drawing technology
- optimizationMaximizing efficiency or performance
- prototypingMaking preliminary models
- simulationImitation of real processes
- stress analysisStudy of internal forces
casting · machining · balancing · tolerances · efficiency · blade angle · pitch · diameter
blades
Sharp flat cutting parts
hub · shroud · inducer · diffuser · volute · casing · seal · bearing · keyway · sleeve
flow
Unbroken forward movement
- velocityDirected rate of motion
- circulationMovement through a system
- vortexRotating fluid column
turbulence · laminar · discharge · pressure · head · cavitation · hydrodynamics · viscosity · Reynolds · Bernoulli
outboard
External boat engine
vessel · boat · yacht · water jet · wake · thrust · pitch · corrosion · fouling · cavitation
centrifugal
Directed away from axis
- submersibleUnderwater exploration vehicle
- slurrySemifluid mixture of solids
- headUppermost body part
pressure · capacity · priming · cavitation · efficiency · volute · casing · seal · wear · corrosion
spin
Rapid rotation around axis
centrifugal · radial · axial · thrust · whirl · gyration · revolution · speed · momentum · acceleration
open
Not closed
CAD
Technical drawing technology
- optimizationMaximizing efficiency or performance
- prototypingMaking preliminary models
- simulationImitation of real processes
stress analysis · casting · machining · balancing · tolerances · efficiency · blade angle · pitch · diameter
- fluid handlingpump, pipe, hose, valve, nozzle
- propulsionjet, rocket, thrusting, jets, rockets
- mixersblender, hand mixer, stand mixer, whisk, food processor
- boat propulsionoar, sail, paddle, outboard motor, inboard motor
- engine partspiston, valve, cylinder, crankshaft, camshaft
- jet boat partshull, throttle, intake, nozzle, steering