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Patent Searching and Data


Matches 601 - 650 out of 1,521

Document Document Title
JPH09195999A
To improve noise eliminating effect of an air pump, and also regulate a noise eliminating mechanism easily by installing a noise eliminating plate in which an opening port which is smaller than a suction port or a discharge port is drill...  
JPH09184499A
To surely reduce noise at an arbitrary position by providing a control means for outputting a control sound signal to a speaker in order to radiating predetermined control sound against sound caused by rotation of a fan body. An air-cond...  
JPH09158899A
To diminish ventilation resistance so as to improve a noise eliminating effect in a mixed flow fan with a noise eliminator formed by arranging on the upstream side of a mixed flow fan, a noise eliminating part consisting of a peripheral ...  
JPH09133097A
To reduce the manufacturing cost by arranging a supporting disc, which contacts with a shaft step part formed in a shaft end of a standard motor in the axial direction and which is guided on the shaft end in the radial direction, between...  
JPH09112484A
To excellently damp a noise by arranging at least notches having an almost heart shape in a plan view over its whole radial directional height on both side boundary surfaces in the circumferential direction of an interrupting part to sep...  
JPH09112483A
To install a regenerative pump type compressor by a shaft vertical to an installing surface by arranging an installing place of a housing end surface on the opposite side of a driving motor in the compressor where the driving motor is ar...  
JPH09112485A
To assemble a housing without requiring additional work to housing half parts by forming the housing of a regenerative pump type compressor out of a synthetic resin, and forming a driving shaft so as to be surrounded with a radial direct...  
JPH0988897A
To greatly reduce the vibration and noise to be propagated from a fan casing to an external cylinder by fitting the noise absorbing material to an inner surface of the external cylinder, providing the fan casing on the inner circumferent...  
JP2587506B2  
JPH0960600A
To drastically decrease noise by adjusting characteristics of frequency in absorbing sound. A fan outer cylinder 7 is provided outside an outer peripheral sound absorbing material 9 through a protrusion as a spacer, and an air layer is f...  
JP2585420B2  
JPH0949498A
To provide a multistage compressor having high efficiency in each stage, of small size and light weight, and generating a large flow amount. A compressor is provided with a plurality of impellers 14, 16 coaxially mounted in a rotationall...  
JPH0914187A
PURPOSE: To provide a multistage compressor to have high efficiency at each stage, reduce size and weight, and have a high flow rate and a high pressure. CONSTITUTION: A multistage compressor comprises a plurality of impellers mounted on...  
JP2569854B2  
JP2569906B2  
JP2569143B2  
JP2521440Y2  
JPH08511499A
(57) It is equipment for transportation and measurement of the granular substance which has one movable side at least arranged between a summary entrance (14), an exit (16) and an entrance, and an exit, and is equipped with the transport...  
JPH08319986A
PURPOSE: To enable long term operation as a reaction product hardly adheres an adhesion area is small even when the product adheres and starting is possible even by low torque like that of an inverter drive. CONSTITUTION: In a circumfere...  
JP2557495B2  
JPH08303397A
PURPOSE: To reduce a ventilating resistance and noise in wider frequency ranges. CONSTITUTION: A core sound damping part 8 installed at the center of an outer tube 7 is formed in an oval shape by covering nonflammable sound absorbing mat...  
JP2547598B2  
JP2544454B2  
JP2536571B2  
JPH08232886A
To improve a compressor unit so as to unite regeneration pump compressors of the same housing diameters with regeneration pump compressors with different housing diameters to one unit. An axial extension 11 is extended to a parting plane...  
JPH08219098A
PURPOSE: To reduce the exhaust noise of a blower without needing a special muffler by making exhaust air, discharged from the discharge port of a blower, reach a muffling passage chamber through a flexible duct, eliminating noise in the ...  
JPH08210293A
To improve the hermetical sealing of a gap by fastening and holding a packing ring abutting on the inner peripheral surface of a portion protruded in the axial direction of a supporting ring and extended in a radial direction, to an abut...  
JPH08210292A
To connect necessary pipes in various directions by providing each pipe connecting unit with inlet and outlet openings in both sides facing each other at least in an axial direction. A reproducing pump type compressor 2 is connected to a...  
JPH08151999A
PURPOSE: To obtain a relatively large silencing effect by providing a cylindrical part opened toward the downstream of an air flow path in a core silencing part, to form a large sound absorbing surface against a noise emitted from a mixe...  
JPH08503051A
(57) Summary book invention consists of at least two sewer form compressors (2, 7) put in order and arranged in the direction of an axis, Each sewer form compressor (2, 7) has a housing which consists of at least two housings half a copy...  
JPH0826877B2  
JPH0874786A
PURPOSE: To obtain a new type blower which has a high wind pressure, a large flow rate, a high efficiency, and a quiet sound. CONSTITUTION: By returning the air flow discharged from a rotary vane 1a to an inner side stationary passage 4b...  
JPH0821398A
PURPOSE: To improve compressing efficiency by forming an inclined flow passage with its exit located more in a radial outside direction than its entrance between a casing and a rotationally-driven disk and disposing a reverse chamber par...  
JPH08500410A
(57) A summary whirlpool pump has an exit port (5) for discharging compressed fluid from the impeller (3) which has two or more shuttlecocks (14) for compressing the fluid flowing in, and a casing (11) at the casing (11) equipped with th...  
JPH07117070B2  
JPH07117069B2  
JPH07117058B2  
JPH07117071B2  
JPH07117068B2  
JPH07117057B2  
JPH07111195B2  
JPH07111189B2  
JPH07103873B2  
JPH07103874B2  
JPH0799158B2  
JPH0746796Y2  
JPH07247992A
PURPOSE: To reduce noise of a vortex flow blower sufficiently while the outside diameter of a blower part is made smaller than the outside diameter of a motor to reduce the size of the blower. CONSTITUTION: In a vortex flow blower so con...  
JPH07247991A
PURPOSE: To reduce disturbance of an air flow so as to reduce noise by inclining the front edge of a return guide vane to the antirotating direction side largely from the rear edge of a blade of a diagonal flow impeller in a diagonal flo...  
JPH0786357B2  
JPH07233798A
PURPOSE: To improve the air blasting performance by composing the tips at the suction side of the air and the like of main blades in a diagonal flow fan. CONSTITUTION: To a base 12 rotating around the axial center, numerous main blades 1...  

Matches 601 - 650 out of 1,521