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JPS63147599U |
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JPS63205498A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS63128226U |
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JPS63115592U |
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JPS63147989A |
PURPOSE: To increase compression ratio by providing an annular guide member which guides the flow of a gaseous body in the vicinity of the outer periphery of an impeller which is rotated in the main passage of a vortex type compression p...
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JPS63147991A |
PURPOSE: To make the captioned pump compact by providing thread grooves on either of the inside and outside cylinder parts of the rotor or the inside and outside stator parts of the stator of a thread groove type compression pump, in clo...
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JPS63147992A |
PURPOSE: To obtain a high pressure ratio by placing the ends of vanes of an impeller in close vicinity to the outer peripheral face of an annular guide member and forming the outer peripheral face of the end of a hub into a recessed curv...
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JPS63147993A |
PURPOSE: To obtain a high pressure ratio by providing plural inside guide pieces for reducing the flow rate component in the rotating direction of an impeller in a main flow passage which is formed with the outer peripheral face of an an...
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JPS6393495U |
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JPS6393493U |
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JPS6387294U |
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JPS63117200A |
PURPOSE: To obtain a large wind pressure by forming the rear half downstream part on the discharge port side of a wind passage on the outer peripheral part of a box-shaped casing into an annular section at the top edge part of an annular...
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JPS6375590U |
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JPS6323821B2 |
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JPS6385291A |
PURPOSE: To obtain a small-sized vacuum pump which operates from the atmospheric pressure to a high vacuum by installing at least a siegbahn pump stage on a suction port side and arranging a circumferential flow compression pump stage on...
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JPS6385288A |
PURPOSE: To effectively operate a vacuum pump in a wide pressure range by suppressing the deterioration of the function of a vacuum pump due to the increase of the pressure at a suction port by installing a screw compression pump stage o...
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JPS6385290A |
PURPOSE: To effectively operate a vacuum pump in a wide pressure range by installing a siegbahn pump stage as the pump stage in the molecular flow or intermediate flow range and arranging a centrifugal compression pump stage and a circum...
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JPS6385287A |
PURPOSE: To obtain a small-sized vacuum pump which can continuously operate from the atmospheric pressure to a vacuum state by installing an axial flow compression pump stage and a screw compression pump stage on a suction port side and ...
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JPS6385286A |
PURPOSE: To prevent the oil leak from a bearing box to a pump side in any operation state by installing a vane wheel for sealing between a driving chamber and a circumferential flow compression pump stage which communicates to an exhaust...
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JPS6352994U |
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JPS6365198A |
PURPOSE: To improve the extent of efficiency, by regulating a direction of flow in a rotor inlet so as to get a stator opposed to a rotor blade, and installing a guide vane so as to form a passage toward the rotor blade. CONSTITUTION: A ...
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JPS6361798A |
PURPOSE: To carry out manufacture of an impeller at low cost by casting a cylinder which is attached to the rotary shaft of a multiple stage molecular pump and disks which constitute the impeller in monoblock. CONSTITUTION: A cylinder 15...
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JPS6355396A |
PURPOSE: To permit exhaust in a wide vacuum range, by using an axial flow blade as a first exhaust element, a mixed flow blade as a second exhaust element of a suction stage and a swirl flow blade as a third exhaust element on an exhaust...
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JPS6341700A |
PURPOSE: To reduce the passage resistance of a flow by forming a centrifugal diffuser part, a return passage, and a discharge port in a point-symmetry structure centering around the shaft of mixed flow vanes. CONSTITUTION: A first air pa...
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JPS6336096A |
PURPOSE: To facilitate the monobloc construction of the stator part of a pump in the above caption so as to attain performance improvement and cost reduction, by forming a circular-arc groove-shaped passage around the outer periphery of ...
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JPS6310291U |
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JPS631479B2 |
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JPS62288394A |
PURPOSE: To obtain a U-turn flow with a compact structure by making the inside of the hub of a mixed flow impeller in a through state, and using a flow passage member whose bottom is constituted by a curved surface so as to introduce a d...
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JPS62288393A |
PURPOSE: To obtain a U-turn flow with a compact structure by making the inside of the hub of a diagonal flow impeller in a through state, and providing the first air passage member introducing a discharged flow to the central part of the...
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JPS62282199A |
PURPOSE: To stabilize a head-discharge curve by setting back the diffuser inlet end at a portion adjoining to the inner wall of a casing and enlarging the inlet angle. CONSTITUTION: When the radial length of a guide vane inlet end 2a is ...
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JPS62271992A |
PURPOSE: To enable a blower to correspond to various blower characteristics, by partitioning a blower blade in a partitioning part to be separated into two parts in the axial direction while embedding an annular permanent magnet in the i...
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JPS6250679B2 |
An air pump useful in pumping gases containing abrasive particles is disclosed. A housing is constructed with a primary flow channel centered around the pump axis and a secondary flow channel annularly surrounding the primary channel jus...
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JPS62243988A |
PURPOSE: To produce a U-turn flow in a compact manner, by a method wherein a mixed flow impeller is contained in a first flow passage member, surrounding the periphery and the under bottom surface of the impeller, and a cylindrical secon...
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JPS62223493A |
PURPOSE: To improve blast efficiency by forming vanes one end of each of which is projected downward beyond the bottom of a hub, on the side face of said hub which is formed into a trapezoid having air vent on its top plate while the bot...
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JPS6237998Y2 |
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JPS6237999Y2 |
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JPS62141699U |
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JPS62138888U |
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JPS6233999Y2 |
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JPS6234959B2 |
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JPS6234958B2 |
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JPS6233438B2 |
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JPS6224800Y2 |
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JPS6298796U |
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JPS6218717Y2 |
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JPS6158677B2 |
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JPS61194797U |
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JPS61186789U |
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JPS61261697A |
PURPOSE: To prevent a noise from being generated, by extending the periphery of a subplate in a mixed flow impeller to an outer direction so as to obtain a diameter larger than the maximum diameter of a blade and providing a subwall, cur...
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JPS61261698A |
PURPOSE: To obtain a blower of high performance formed in a thin shape and cooling a motor, by providing plural opening parts in the periphery of a boss part in a mixed flow impeller forming its inside almost in a truncated cone-shaped c...
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