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Patent Searching and Data


Matches 701 - 750 out of 1,506

Document Document Title
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...  
JPH04159495A
PURPOSE: To facilitate carrying by forming a handle in a silencer casing while increasing its volume to obtain an excellent silencing effect by forming the silencer casing into constitution having a riseup part and a swollen part. CONSTI...  
JPH04153597A
PURPOSE: To obtain an vortex flow blower in which the air blowing resistance is small and noise is reduced, by installing an insertion pipe which is shorter than the length of an air blowing passage, in the air blowing passage in a muffl...  
JPH04128598A
PURPOSE: To directly cool an impeller with the outside air efficiently by providing a cooling opening communicated to a car room, and providing a radiator on a hub section arranged on the cooling opening. CONSTITUTION: A cooling means pr...  
JPH04124495A
PURPOSE: To obtain a compact vortex flow blower excellent in productivity by providing a cooling passage between a suction port and a discharge port in a vortex flow blower. CONSTITUTION: In line with a cooling ventilation flue 1g betwee...  
JPH0417839Y2  
JPH0481595A
PURPOSE: To prevent foreign substances such as dust, dirt, moisture content or water content, etc., from penetrating into the inner part of a fan by installing each groove, going along a direction of rotation, on the inner circumferentia...  
JPH0441992A
PURPOSE: To minimize increase in noise even when a motor is attached on a suction side by specifying a ration of an outside of the motor to the inside diameter of a suction port of a casing and also a ratio of an outside diameter of an i...  
JPH0414795U  
JPH0436095A
PURPOSE: To utilize a mixed flow type blower even in medium and low pressure ranges by providing an impeller composed of a conical body, a disc, a cylinder and a boss, and by holding a balance piston concentric with the cylinder, in a ca...  
JPH0431693A
PURPOSE: To improve noise characteristics to a great extent by forming a suction side circular muffler between the suction port of a casing and a suction side linear muffler, and also forming a discharge side muffler between the discharg...  
JPH0380700B2  
JPH03119592U  

Matches 701 - 750 out of 1,506