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JP4967882B2 |
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JP2012112384A |
To provide a configuration of a gas blower which has at least one muffling device, properly reduces wideband noise and transports chemically safe gas.This configuration of a blower includes: a blower (1) having a blower housing (2); at l...
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JP4898076B2 |
A side channel pump, preferably a vacuum pump, includes a driven rotor ( 16 ) and a fixed stator ( 14 ). The rotor ( 16 ) and the stator ( 14 ) define a pump channel circulating in a peripheral direction. Blades are fixed onto the rotor,...
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JP4886207B2 |
A load-lock and dry vacuum pump assembly includes a load-lock having a load-lock housing, the load-lock housing includes a mating system having a flange-like cylinder and a cylinder concentrically located relative to said flange-like cyl...
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JP3173858U |
To provide a bladeless fan structure capable of significantly reducing a volume and reducing noise and vibration. A main wing pieceless fan structure 2 includes a drive member 20, a pipe body 22, and at least one pressure boosting region...
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JP4880032B2 |
A centrifugal fan mounted in an air conditioner has the following relationship: outer diameter of a side plate of the centrifugal fan>outer diameter of the blade rear-edge part on side-plate side>diameter of the blade rear-edge part on m...
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JP4843493B2 |
A differentially pumped mass spectrometer system comprises a mass spectrometer having a plurality of pressure chambers; a vacuum pump attached thereto and comprising at least three pump inlets, a first pumping section, a second pumping s...
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JP4819277B2 |
The disc-form component parts(6,7) supporting the rotor and stator blade rows extend radially and the longitudinal axes of the blades(2,3) extend axially. Medium flows through the pump from the outside inwards, and the blade width decrea...
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JP4801377B2 |
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JP4797776B2 |
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JP4773570B2 |
A fan assembly for creating an air current includes a nozzle mounted on a base. The base comprises an outer casing, an impeller housing located within the outer casing, the impeller housing having an air inlet and an air outlet, an impel...
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JP2011153549A |
To provide a pump device achieving a reduction in the thickness of a portion interposed between the salient poles of a stator core and a magnet in a cylindrical barrel without deteriorating the strength of the cylindrical barrel of a pum...
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JP2011140884A |
To provide a vortex blower facilitating outflow of air flows from the distal ends of blades.The vortex blower includes an impeller which has a casing provided with a pressure chamber on a lateral side of an annular flow passage centered ...
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JP2011106428A |
To provide a blower and a pump which can reduce noise and improve efficiency by preventing disturbance of a flow of delivered fluid.The blower 1 sends sucked air by rotating an impeller 30 fixed on a rotary shaft 20 extending in a casing...
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JP4675468B2 |
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JP4671844B2 |
A blower comprising: a vane wheel including a pair of grooves, and blades extending in a radial direction of the vane wheel in each groove, and a casing including stationary flow paths facing to the grooves respectively so that the gas u...
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JP4669323B2 |
To provide a foil bearing superior in sealing performance and easy to manufacture while stably holding a supporting shaft. The foil bearing comprises a housing, a shaft to be rotated in the housing, a vane part arranged on the shaft, and...
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JP4599061B2 |
A vacuum pump includes a housing having an inlet port and an exhaust port, a plurality of vacuum pumping stages located within the housing and disposed between the inlet port and the exhaust port, and a motor. The vacuum pumping stages i...
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JP4584628B2 |
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JP4565859B2 |
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JP2010190221A |
To achieve miniaturization and high efficiency by simply constituting a diffuser and an impeller in a centrifugal or mixed-flow blower or pump in three-dimensional shapes.The diffuser 80 has such a shape in the trailing edge thereof that...
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JP4529613B2 |
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JP4512352B2 |
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JP4489394B2 |
A casing of a regenerative pump forms a generally annular fluid passage, which conducts a fluid. An impeller is rotatably received in the casing and has a plurality of blades, which are arranged one after another in a circumferential dir...
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JP2010511826A |
A pump having a housing with a torus and a stripper region. The stripper region has a housing groove formed on the surface of the stripper region. The housing groove has a surface forming a length, width and depth of the groove. The pump...
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JP2010509527A |
The present invention relates to a pump arrangement (10) having a housing (12) and cover (14). The housing (12) and cover (14) form part of a pump mechanism (16). A first inlet or a housing inlet (26) is formed in the housing (12) and is...
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JP2010059875A |
To solve the problems that the life of a bearing is reduced by the axial force which is produced in an impeller where a fluid passage on the driving side of a casing is connected in series to that on the counter driving side thereof, and...
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JP4411644B2 |
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JP4353895B2 |
A regenerative fluid pump ( 10 ) comprises a rotor having rotor blades for compressing fluid on two fluid flow paths, the first of which extends between a first pump inlet ( 12 a) and a first pump outlet ( 14 a), and a second of which ex...
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JP4349327B2 |
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JP2009138636A |
To provide a regenerative pump capable of improving pump performance by inhibiting the deformation quantity of a casing, and facilitating the management of a clearance between an impeller and the casing.In the regenerative pump 10 pressu...
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JP4255912B2 |
The fan wheel (1) has a base plate (2) and a number of attached fan blades (3) extending perpendicular to the base plate, each having a radially outwards front edge (4), a radially inwards rear edge (5), an inner surface and an outer sur...
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JP4243105B2 |
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JP2009052476A |
To stabilize operation of a diagonal flow transonic compressor by expanding the operation range of the diagonal flow transonic compressor.The diagonal flow transonic compressor 1 is provided with a second groove 11 and a first groove 10 ...
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JP4233359B2 |
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JP4152722B2 |
To provide a hydrogen pump and a fuel cell system using the hydrogen pump capable of protecting the hydrogen pump from locking due to freezing without lowering pump performance. In the hydrogen pump, hydrogen gas is sucked and exhausted ...
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JP2008095638A |
To provide a mixed flow compressor having enhanced performance by widening its operating range.The mixed flow compressor is configured with a mixed flow impeller 11 which is rotated to give a dynamic pressure to a working fluid, a first ...
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JP4077356B2 |
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JP2008069681A |
To narrow a gap between an impeller and a case, and to improve a pump characteristic.In a side channel pump 10 provided with pump blades 19a, 19b on both front and reverse surfaces of the impeller 17, a first dynamic bearing part 38 is p...
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JP4068837B2 |
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JP2007309286A |
To reduce noise generated from a vortex blower used as a small air blower. This vortex blower is provided with an impeller 7 having a plurality of blade chambers on an annular guide groove 6 having an approximately semicircular cross sec...
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JP2007278231A |
To provide a pump capable of adjusting a clearance between a bucket forming surface forming a bucket part of an impeller and an opposite surface of a housing opposing to the bucket forming surface. A housing 11 of a pump 10 is provided w...
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JP3993666B2 |
A vacuum pump of the regenerative type comprising a rotor and a stator body in which the rotor is adapted for rotation and in which the rotor has a series of blades positioned in an annular array on a side of the rotor the stator has an ...
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JP2007247421A |
To provide a hydrogen pump wherein the clearance between a bucket forming surface forming a bucket part of an impeller thereon and an opposite surface of a housing opposite to the bucket forming surface can be varied. The hydrogen pump i...
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JP2007247494A |
To provide a diagonal flow blower impeller improving dynamic strength when blades are rotated without turning up noise and lowering fan efficiency. This impeller is provided a roughly circular truncated cone shape hub 4, two or more thin...
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JP2007231867A |
To provide a long-life vortex pump having a bearing structure in which chattering is hardly caused. The vortex pump 1 includes an impeller 20 comprising a plurality of blades 22 formed on the periphery of the impeller and a rotor magnet ...
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JP3964200B2 |
To improve pump efficiency of a fuel pump. An impeller rotating in a pump casing is approximately disk- shaped. In an area extending along the outer peripheries of two sides, groups of recess parts are formed repeatedly and mutually spac...
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JP3939814B2 |
To provide a metal layer having an abrasion performance which is abraded easily by being brought into contact with other metal, and thereby, contract a clearance between a blade top end and an enclosing plate by forming an abrasion porou...
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JP2007514096A |
A regenerative pumping mechanism comprises a rotor having a series of blades positioned in an annular array on one side of the rotor, and a stator having an annular channel within which the blades rotate. In order to control the axial cl...
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JP2007510544A |
A venturi (18) receives incoming material through an inlet tube (12) and subjects the material to pulverization. The material, as it undergoes pulverization, is further subject to moisture extraction and drying. An airflow generator (32)...
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