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Patent Searching and Data


Matches 701 - 750 out of 1,521

Document Document Title
JPH05312182A
PURPOSE: To miniaturize the whole machine and improve mechanical efficiency by arranging no water jacket on the outer circumferential side of a compression mechanism part on the uppermost stream side, and constructing the compression mec...  
JPH05312183A
PURPOSE: To more effectively form the turning flow in an annular flow passage of a vortex flow blower so as to reduce turbulence, improve the performance of the vortex flow blower, and silence the noise. CONSTITUTION: An annular flow pas...  
JPH05306700A
PURPOSE: To provide a motor-driven air pump of low cost capable of acquiring high performance required for secondary air supply to an exhaust system immediately after col start certainly even if a general purpose motor is used. CONSTITUT...  
JPH05507983A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPH0540319Y2  
JPH0565720B2  
JPH05231382A
PURPOSE: To improve an yield of a product by suppressing a thrust (shaft) directional clearance between an impeller and a casing to a minimum limit so as to eliminate unevenness of a flow characteristic. CONSTITUTION: A hollow cylindrica...  
JPH0566296U
[Objects of the Invention] The clearance of the radial (path) direction between an impeller and a casing is suppressed at worst, the variation in a flow characteristic is abolished, and the yield of a product is raised. [Elements of the ...  
JPH05215094A
PURPOSE: To solve a reduction in performance so as to be suitable, particularly, for exhaust and compressing treatment of gas in which the deposition or sticking of a material is predicted by preventing the counter flow of air flow. CONS...  
JPH0553955B2  
JPH05202889A
PURPOSE: To minimize noise leakage to the outside of a motor by installing a suction duct which leads outside air to a suction port, and a discharge duct which passes compressed air from a discharge port so as to cover the easing of the ...  
JPH0551798B2  
JPH0551799B2  
JPH0558894U
[Objects of the Invention] Improvement in pump efficiency is aimed at, and reduction-ization of a fluid noise is attained, with the specification of a sound-absorbing material etc. is simplified and reduction of the small size of a fluid...  
JPH05187390A
PURPOSE: To provide each muffler which can desirably be cleaned quickly when it is clogged by making a floor area small for each filter. CONSTITUTION: In a circular blower 4, a suction side muffler 11 is combined with a discharge side mu...  
JPH05180191A
PURPOSE: To make an electric motor pump compact by using a rotor iron core with multiple gears commonly as an impeller of a viscous pump. CONSTITUTION: An electric motor comprises a stator 2 being composed of a stator iron core 6 with mu...  
JPH05179941A
PURPOSE:To provide a motor driven pump in which pressure-flow characteristic suitable for secondary air supply to a catalytic converter for a vehicle is provided together with a long service life and efficiency of a motor can be improved...  
JPH05180190A
PURPOSE: To provide a compact and lightweight pump with increased performance under stable rotation by providing recessed parts and partition blade on the outer periphery of a rotor and also providing a compression blade having a blade s...  
JPH05180189A
PURPOSE: To provide a scroll pump capable of increasing its performance remarkably without increasing its cost due to increase in part accuracy and assembly accuracy. CONSTITUTION: A ring type recessed or protruded part is provided on a ...  
JPH05172091A
PURPOSE: To increase pumping speed at vortex pump stages by utilizing the form of a rotor finished into a straight cylinder having blades engraved in the outer peripheral surface thereof and having no projection. CONSTITUTION: A number o...  
JPH05172090A
PURPOSE: To improve performance of a vacuum pump without increasing the weight and the size of the pump by providing in the bottom portion of an exhaust channel a blade surface facing a passage extending along the circumferential directi...  
JPH05172089A
PURPOSE: To reduce the time and the cost required for the maintenance of an exhaust passage by readily removing from the exhaust passage a congelation of reactive gas used in the process of manufacturing semiconductors. CONSTITUTION: A c...  
JPH05157091A
PURPOSE: To prevent heat from being transmitted to a bearing of a driving motor so as to carry out a continuous shutting-off operation in a vortex flow fan where a temperature of discharge air becomes high at the time of the shutting-off...  
JPH05503492A
(57)【要約】 本公報は電子出願前の出願データであるため 要約のデータは記録されません。  
JPH05141390A
PURPOSE: To improve performance of an impeller by forming a blade individually from a blade casing and fixing together the two members through plastic deformation by energization caulking by means of an electrode made of a material being...  
JPH05133386A
PURPOSE: To get desired performance with a small number of stages by forming a circumferential flow impeller being a rotor in the shape of cylindrical stages thereby improving the manufacture property and assembling property, and setting...  
JPH05133387A
PURPOSE: To prevent the leakage of gas from an exhaust passage and a motor room, respectively, and preventing corrosion and exhaust loss, and lightening the thrust force thereby miniaturizing a magnetic bearing, by arranging a two stages...  
JPH05133388A
PURPOSE: To prevent the penetration of exhaust gas to the side of a motor room and the corrosion of a magnetic bearing, respectively, by forming a circular chamber in the middle between the eddy current type pump element on the lowermost...  
JPH05133389A
PURPOSE: To simplify the constitution more, conjointly with the structure of providing the rotor with a vane in the shape of curving, abolishing the circular core inside an exhaust passage, and reduce the quantity of adhering congelation...  
JPH05118296A
PURPOSE: To prevent stick and deposit of reaction product to a pump passage without solidification of gas even if the gas of high sublimation temperature is sucked into the pump passage. CONSTITUTION: A dry vacuum pump is constructed so ...  
JPH0587088A
PURPOSE: To provide a pump with a simple structure which can be easily assembled and to allow clearances between pump rotors to be easily managed by forming on the outer periphery of the pump rotor a spiral channel which continuously ext...  
JPH0565891A
PURPOSE: To improve the characteristic of vortex flow pump by forming a swirl flow more effectively in a circular annular flow path. CONSTITUTION: An auxiliary supply path 14 for supplying an assist flow of guiding fluid in a direction o...  
JPH0560094A
PURPOSE: To provide a mixed flow fan suitable for a high pressure loss field. CONSTITUTION: A first region 18 defined in a position near a rear edge side beyond the center of a joining front end between a blade 14 on a suction side 5 and...  
JPH0510290A
PURPOSE: To make a first and a second vortex type compression pump compact for lightening by improving the structure of a first or a fifth main flow passage so as to improve the compression efficiency effectively. CONSTITUTION: Multiple ...  
JPH051741Y2  
JPH0477160B2  
JPH0450476Y2  
JPH04314996A
PURPOSE: To provide a centrifugal pump which prevents the contact between a disc part and a housing and secures the superior sealing efficiency and permits the high speed revolution. CONSTITUTION: An annular scroll chamber 10 in which an...  
JPH04111596U  
JPH04265491A
PURPOSE: To provide high static pressure of characteristics in a mixed flow impeller sufficiently. CONSTITUTION: An inclined hub 11 joined with the low pressure surface side 12a of an impeller 12, and a vertical hub 13 joined with the hi...  
JPH04262093A
PURPOSE: To provide a regenerative centrifugal compressor wherein high efficiency, a high compression characteristic, a low leakage characteristic and a high suction characteristic are provided, and a load capacity is increased. CONSTITU...  
JPH04228899A
PURPOSE: To effectively restrain peak noise generated when a blade passes in a partitioning portion by stretching plate-like vibrationproof members having viscous elasticity over the inner surface opposite to the blade of the partitionin...  
JPH04224295A
PURPOSE: To obtain a turbomolecular pump having a high compression ratio and not having an auxiliary pump which can exhaust into the atmosphere. CONSTITUTION: A tangential flow pump stage 10 is arranged in an exhaust side in addition to ...  
JPH04224296A
PURPOSE: To provide an electrically operated air pump suitable for supplying air to the exhaust system of an internal combustion engine. CONSTITUTION: A electrically operated air pump 10 for supplying air to the exhaust system of an inte...  
JPH0448960B2  
JPH04203290A
PURPOSE: To prevent a speed energy from being biased and restrict an occurrence of noise by a method wherein a discharging side partition starting point and a partition completion point are connected by an arc having a smaller radius tha...  
JPH04203291A
PURPOSE: To provide a complete elimination of sound of siren by a method wherein a partition part of a side wall at a discharging side is gradually partitioned from a root part of a vane part with a smaller radius than that of a groove o...  
JPH0436279B2  
JPH04159494A
PURPOSE: To obtain reduction of a number of part items and work man-hours and improvement of reliability by parallelly providing a motor housing and a silencer casing further integrally formed with an impeller casing. CONSTITUTION: In a ...  
JPH04159493A
PURPOSE: To contrive increase of an flow amount and a pressure and reduction of a noise level by providing a means for reducing a sectional area of an annular groove in a part connected to a suction port or a delivery port in the annular...  

Matches 701 - 750 out of 1,521