Details, component parts, or accessories

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04DNON-POSITIVE DISPLACEMENT PUMPS

F04D29/00Details, component parts, or accessories

F04D29/002especially adapted for elastic fluid pumps F04D29/005Decorative aspects F04D29/007especially adapted for liquid pumps F04D29/02Selection of particular materials F04D29/023especially adapted for elastic fluid pumps F04D29/026especially adapted for liquid pumps F04D29/04Shafts or bearings, or assemblies thereof F04D29/0405joining shafts F04D29/041Axial thrust balancing F04D29/0413hydrostatic; hydrodynamic thrust bearings F04D29/0416balancing pistons F04D29/042Axially shiftable rotors F04D29/043Shafts F04D29/044Arrangements for joining or assembling shafts F04D29/046Bearings F04D29/0462Bearing cartridges F04D29/0465Ceramic bearing designs F04D29/0467Spherical bearings F04D29/047hydrostatic hydrodynamic F04D29/0473for radial pumps F04D29/0476for axial pumps F04D29/048magnetic electromagnetic F04D29/049Roller bearings F04D29/05Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps F04D29/051Axial thrust balancing F04D29/0513hydrostatic; hydrodynamic thrust bearings F04D29/0516balancing pistons F04D29/052Axially shiftable rotors F04D29/053Shafts F04D29/054Arrangements for joining or assembling shafts F04D29/056Bearings F04D29/0563Bearings cartridges F04D29/0566Ceramic bearing designs F04D29/057hydrostatic hydrodynamic F04D29/058magnetic electromagnetic F04D29/059Roller bearings F04D29/06Lubrication F04D29/061especially adapted for liquid pumps F04D29/063especially adapted for elastic fluid pumps F04D29/08Sealings F04D29/083especially adapted for elastic fluid pumps F04D29/086especially adapted for liquid pumps F04D29/10Shaft sealings F04D29/102especially adapted for elastic fluid pumps F04D29/104the sealing fluid being other than the working fluid or being the working fluid treated F04D29/106especially adapted for liquid pumps F04D29/108the sealing fluid being other than the working liquid or being the working liquid treated F04D29/12using sealing-rings F04D29/122especially adapted for elastic fluid pumps F04D29/124with special means for adducting cooling or sealing fluid F04D29/126especially adapted for liquid pumps F04D29/128with special means for adducting cooling or sealing fluid F04D29/14operative only when pump is inoperative F04D29/143especially adapted for elastic fluid pumps F04D29/146especially adapted for liquid pumps F04D29/16between pressure and suction sides F04D29/161especially adapted for elastic fluid pumps F04D29/162of a centrifugal flow wheel F04D29/164of an axial flow wheel F04D29/165especially adapted for liquid pumps F04D29/167of a centrifugal flow wheel F04D29/168of an axial flow wheel F04D29/18Rotors F04D29/181Axial flow rotors F04D29/183Semi axial flow rotors F04D29/185Rotors consisting of a plurality of wheels F04D29/186Shaftless rotors F04D29/188specially for regenerative pumps F04D29/20Mounting rotors on shafts F04D29/22specially for centrifugal pumps F04D29/2205Conventional flow pattern F04D29/2211More than one set of flow passages F04D29/2216Shape, geometry F04D29/2222Construction and assembly F04D29/2227for special materials F04D29/2233entirely open or stamped from one sheet F04D29/2238Special flow patterns F04D29/2244Free vortex F04D29/225Channel wheels F04D29/2255flow-channels with a special cross-section contour F04D29/2261with special measures F04D29/2266for sealing or thrust balance F04D29/2272for influencing flow or boundary layer F04D29/2277for increasing NPSH or dealing with liquids near boiling-point F04D29/2283for reverse pumping action F04D29/2288for comminuting, mixing or separating F04D29/2294for protection F04D29/24Vanes F04D29/242Geometry, shape F04D29/245for special effects F04D29/247elastic or self-adjusting F04D29/26Rotors specially for elastic fluids F04D29/263mounting fan or blower rotors on shafts F04D29/266mounting compressor rotors on shafts F04D29/28for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps F04D29/281for fans or blowers F04D29/282the leading edge of each vane being substantially parallel to the rotation axis F04D29/283rotors of the squirrel-cage type F04D29/284for compressors F04D29/285the compressor wheel comprising a pair of rotatable bladed hub portions axially aligned and clamped together F04D29/286multi-stage rotors F04D29/287with adjusting means F04D29/288Part of the wheel having an ejecting effect F04D29/289having provision against erosion or for dust-separation F04D29/30Vanes F04D29/305Flexible vanes F04D29/32for axial flow pumps F04D29/321for axial flow compressors F04D29/322blade mountings F04D29/323adjustable F04D29/324blades F04D29/325for axial flow fans F04D29/326comprising a rotating shroud F04D29/327with non identical blades F04D29/328with unequal distribution of blades around the hub F04D29/329Details of the hub F04D29/34Blade mountings F04D29/36adjustable F04D29/362during rotation F04D29/364The blades having only a predetermined number of possible positions F04D29/366Adjustment by interaction of inertion and lift F04D29/368Adjustment by differences of temperature F04D29/38Blades F04D29/382Flexible blades F04D29/384characterised by form F04D29/386Skewed blades F04D29/388characterised by construction F04D29/40Casings Connections of working fluid F04D29/403especially adapted for elastic fluid pumps F04D29/406especially adapted for liquid pumps F04D29/42for radial or helico-centrifugal pumps F04D29/4206especially adapted for elastic fluid pumps F04D29/4213suction ports F04D29/422Discharge tongues F04D29/4226Fan casings F04D29/4233with volutes extending mainly in axial or radially inward direction F04D29/424Double entry casings F04D29/4246comprising more than one outlet F04D29/4253with axial entry and discharge F04D29/426especially adapted for liquid pumps F04D29/4266made of sheet metal F04D29/4273suction eyes F04D29/428Discharge tongues F04D29/4286inside lining F04D29/4293Details of fluid inlet or outlet F04D29/44Fluid-guiding means F04D29/441especially adapted for elastic fluid pumps F04D29/442rotating diffusers F04D29/444Bladed diffusers F04D29/445especially adapted for liquid pumps F04D29/447rotating diffusers F04D29/448bladed diffusers F04D29/46adjustable F04D29/462especially adapted for elastic fluid pumps F04D29/464adjusting flow cross-section, otherwise than by using adjustable stator blades F04D29/466especially adapted for liquid fluid pumps F04D29/468adjusting flow cross-section, otherwise than by using adjustable stator blades F04D29/48for unidirectional fluid flow in reversible pumps F04D29/483especially adapted for elastic fluid pumps F04D29/486especially adapted for liquid pumps F04D29/50for reversing fluid flow F04D29/503especially adapted for elastic fluid pumps F04D29/506especially adapted for liquid pumps F04D29/52for axial pumps F04D29/522especially adapted for elastic fluid pumps F04D29/524shiftable members for obturating part of the flow path F04D29/526Details of the casing section radially opposing blade tips F04D29/528especially adapted for liquid pumps F04D29/54Fluid-guiding means F04D29/541Specially adapted for elastic fluid pumps F04D29/542Bladed diffusers F04D29/544Blade shapes F04D29/545Ducts F04D29/547having a special shape in order to influence fluid flow F04D29/548Specially adapted for liquid pumps F04D29/56adjustable F04D29/563specially adapted for elastic fluid pumps F04D29/566specially adapted for liquid pumps F04D29/58Cooling Heating Diminishing heat transfer F04D29/5806Cooling the drive system F04D29/5813Cooling the control unit F04D29/582specially adapted for elastic fluid pumps F04D29/5826Cooling at least part of the working fluid in a heat exchanger F04D29/5833flow schemes and regulation thereto F04D29/584cooling or heating the machine F04D29/5846cooling by injection F04D29/5853heat insulation or conduction F04D29/586specially adapted for liquid pumps F04D29/5866Cooling at last part of the working fluid in a heat exchanger F04D29/5873flow schemes and regulation thereto F04D29/588cooling or heating the machine F04D29/5886cooling by injection F04D29/5893heat insulation or conduction F04D29/60Mounting Assembling Disassembling F04D29/601specially adapted for elastic fluid pumps F04D29/602Mounting in cavities F04D29/603means for positioning from outside F04D29/604means for removing without depressurising the cavity F04D29/605specially adapted for liquid pumps F04D29/606Mounting in cavities F04D29/607means for positioning from outside F04D29/608means for removing without depressurizing the cavity F04D29/62of radial or helico-centrifugal pumps F04D29/622Adjusting the clearances between rotary and stationary parts F04D29/624especially adapted for elastic fluid pumps F04D29/626Mounting or removal of fans F04D29/628especially adapted for liquid pumps F04D29/64of axial pumps F04D29/642by adjusting the clearances between rotary and stationary parts F04D29/644especially adapted for elastic fluid pumps F04D29/646Mounting or removal of fans F04D29/648especially adapted for liquid pumps F04D29/66Combating cavitation, whirls, noise, vibration or the like Balancing F04D29/661especially adapted for elastic fluid pumps F04D29/662Balancing of rotors F04D29/663Sound attenuation F04D29/664by means of sound absorbing material F04D29/665by means of resonance chambers or interference F04D29/666by means of rotor construction or layout F04D29/667by influencing the flow pattern F04D29/668damping or preventing mechanical vibrations F04D29/669especially adapted for liquid pumps F04D29/68by influencing boundary layers F04D29/681especially adapted for elastic fluid pumps F04D29/682by fluid extraction F04D29/684by fluid injection F04D29/685Inducing localised fluid recirculation in the stator-rotor interface F04D29/687Plasma actuators therefore F04D29/688especially adapted for liquid pumps F04D29/70Suction grids Strainers Dust separation Cleaning F04D29/701especially adapted for elastic fluid pumps F04D29/703specially for fans F04D29/705Adding liquids F04D29/706Humidity separation F04D29/708specially for liquid pumps