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Patent Searching and Data


Matches 751 - 800 out of 1,520

Document Document Title
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  
JPH03119593U  
JPH03264796A
PURPOSE: To improve compression performance by providing a guide vane of predetermined height in a circular cascade shape on a curved part in flow path surfaces of a side plate side diffuser plate, in the case of a compressor provided wi...  
JPH03253796A
PURPOSE: To lighten the impeller in the title by forming a blade casing with a circular groove around a rotary shaft in the center and a plural number of blades arranged in the circular groove as separate bodies and by assembling each of...  
JPH03246397A
PURPOSE: To improve pressure characteristics and efficiency by providing a fluid blowing means for blowing off high pressure fluid in the direction so as to promote scroll formation of the fluid flowing into a main passage from an inlet ...  
JPH03229996A
PURPOSE: To reduce noise by making the inside of a hub part of a truncate come shape, which receives power from the outside and has a plural number of blades around it, a cavity structure, and forming a plural number of small holes which...  
JPH03210097A
PURPOSE: To obtain a vortex pump with the vacuum pump function, air-liquid mixing function, bubbling function and liquid mixing function by providing an injection port of an liquid on the center side of the blade coupling groove of a cas...  
JPH0389995U  
JPH0389996U  
JPH03206391A
PURPOSE: To simply lower noise such as peak sound or the like by forming a wall thick part in the peripheral part of a partition plate partitioning between a suction port and a discharge port in a cover of a casing, and by setting the th...  
JPH0383367U  
JPH03182697A
PURPOSE: To improve the efficiency of an intermediate stage without reducing a discharge speed in a range of 10-0.1Torr and to reduce size through reduction of the number of stages by forming a vortex friction pump, in which the delivery...  
JPH03175196A
PURPOSE: To remarkably improve aerodynamic performance and reduce noise by forming a blade form from the inner circumferential end of the blade to the center part into a curved face so that the entrance angle in the axial direction of th...  
JPH03164529A
PURPOSE: To compact a structure by arranging a mixed-flow diffuser within an annular space formed of one annular combustion chamber or a plurality of individual combustion chambers arranged in the form of a ring, the mixed- flow diffuser...  
JPH03160191A
PURPOSE: To enhance pump efficiency by providing the impeller of a side channel pump with blades which constitute a radially outer portion interacting with pump side channels in a pump casing and blades constituting an inner portion work...  
JPH0368598U  
JPH0363796U  
JPH03145595A
PURPOSE: To enhance the controllability of a vortex regenerative pump by providing a channel plate structural body which is freely displaced relative to both the blade cell passage of a rotor and a housing, and enabling the effective len...  
JPH03130597A
PURPOSE: To perform a rotating action smoothly and reduce noise for a blower formed by planting a plurality of thin blades around a hub of a conical trapezoid form by forming the sectional surface of a tip part of the blade in the form o...  
JPH03124997A
PURPOSE: To utilize a self-suction pump as a vacuum pump and facilitate maintenance and management at a low cost without requiring airtightness by intermittently or continuously automating the priming to the self-suction pump. CONSTITUTI...  
JPH03121295A
PURPOSE: To enable the length of a noise reduction material to be changed easily in response to various required noise values by interposing a cylindrical intermediate body filled with an auxiliary noise reduction material between the pi...  
JPH03105095A
PURPOSE: To reduce fan noise by providing one casing containing a runner and another casing having an air inlet hole and an air blowout hole in a groove along the shape of the runner, and by arranging a buffle member in a part of the gro...  
JPH0378595A
PURPOSE: To improve airodynamic performance to reduce noises by forming the inner circumference of an impeller in a dimensional shape suitable for a three dimensional air flows, and providing a suction side guide which seems to cut the t...  
JPH0370899A
PURPOSE: To lower rotating speed of a runner with a large expansion ratio by rotating a runner through spiral flow energy of high pressure refrigerant gas introduced into a vortex chamber from an inlet nozzle, and constituting the device...  
JPH0323697U  
JPH0321594U  
JPH0321595U  
JPH0319493U  
JPH0319494U  
JPH0319492U  
JPH0343696A
PURPOSE: To lower partial load which is due to the pressure gradient of each division passage, by dividing exhaust passages circumferentially, and providing suction ports and discharge ports which are respectively plural and which are re...  
JPH03500560A  
JPH0311199A
PURPOSE: To enhance the performance of compressors by forming a guide channel which introduces liquid in a chamber formed by depressing the surface of a channel on the side of a side plate at the bend of a diffuser inlet, into a suction ...  
JPH0262717B2  
JPH02291499A
PURPOSE: To generate coldness of ultra low temperature level with high efficiency by expanding high pressure refrigerant gas by a vortex turbine constructed by an impeller that moves in an actuation chamber along a ringed guiding member,...  
JPH02503815A  
JPH02264196A
PURPOSE: To get a turbine vacuum pump which keeps high performance of a regenerative pump by arranging a regenerative pump which consists of blades arranged on axially projecting parts of a rotor and ventilation flues arranged o a periph...  
JPH02127796U  
JPH0246797B2  
JPH0245769B2  

Matches 751 - 800 out of 1,520