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Patent Searching and Data


Matches 751 - 800 out of 1,504

Document Document Title
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  
JPH02118191U  
JPH02238199A
PURPOSE: To improve the productivity by injection moulding an open impeller of blades and a hub having a diagonal surface of thermoplastic synthetic resin, and heating ranges from the root of the blades to their tip for softening and ben...  
JPH02502773A  
JPH02215997A
PURPOSE: To facilitate mold manufacture and mold removal after casting in opening the front and rear of a blade by joining those of wheel and blade, solidly formed around a rotational axis, together with a hub structure separately formed...  
JPH02207194A
PURPOSE: To prevent the problem of the conventional noise generation when a blast element is rotated across the generated flow of a fluid by rotating stream generating plates with surfaces moving the fluid only by the sticking phenomenon...  
JPH02207193A
PURPOSE: To improve blast efficiency by arranging a circular blade at the air intake port of a bypass passage so that the reverse air stream at the time of a low flow is guided to the bypass passage and the air stream at the time of a hi...  
JPH02191900A
PURPOSE: To prevent a sound absorbing material from wearing a deformation by connecting a pipe-shaped case to a ventilation port, mounting the pipe-shaped sound absorbing material of heat resisting fiber into this case and providing in t...  
JPH02188692A
PURPOSE: To maintain a sound absorbing action on gas holding water, etc., containing dissolved foreign matters for long periods of time by respectively loading a muffling material made up of closed cell bodies on the leeward of a mufflin...  
JPH02163496A
PURPOSE: To make a compression ratio larger and enhance a pumping speed as well as to reduce manufacturing cost by specifying a Knudsen number of inlet ports shown in a specified equation, and interconnecting these inlet ports to a venti...  
JPH0278796U  
JPH0276124U  
JPH02146292A
PURPOSE: To make a space as small as possible and improve cooling performance so as to obtain a ring air blower of high reliability by providing a discharge joint directed outward at the side wall of a discharge passage as well as an int...  
JPH0225039B2  
JPH02136597A
PURPOSE: To prevent the generation of turbulent flow of air by setting the thickness dimension on the suction side of a blade piece over the max. thickness dimension on the discharge side, having a prtiting line in molding which is gener...  

Matches 751 - 800 out of 1,504