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Patent Searching and Data


Matches 651 - 700 out of 1,521

Document Document Title
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...  
JPH07217588A
PURPOSE: To prevent the occurrence of an adverse influence exercised on a swirl flow of gas and to improve aerodymanic characteristics by a method wherein a small part in the vicinity of the inner peripheral edge of a blade formed at an ...  
JPH0732933Y2  
JPH07174262A
PURPOSE: To always maintain static pressure of a piping line below allowable static pressure by releasing part of discharge fluid to the atmosphere just before a pressure load exceeds allowable static pressure. CONSTITUTION: A pressure l...  
JPH0729279Y2  
JPH07167089A
PURPOSE: To produce a silent effect by the edge of a high stage surface in the vicinity of an air delivery hole and a blade and to reliably suppress the generation of noise by a method wherein the edge of a partition part of a case membe...  
JPH07167077A
PURPOSE: To provide a regenerative pump capable of decreasing or avoiding excess pressure or flow rate at high speed. CONSTITUTION: This regenerative pump includes a housing 1, an impeller 5 having a plurality of vanes 13 spaced apart fr...  
JPH07167083A
PURPOSE: To reduce excess pressure and/or excess flow at high speed by providing within a housing a second fluid inlet which opens to a flow channel between a fluid inlet and a fluid outlet, and controlling the supply of fluid to both of...  
JPH07127595A
PURPOSE: To provide a vortex blower which can be widely used as the air supply source such as combustion heater by varying the output characteristics. CONSTITUTION: An impeller 2 where a number of blades 21A, 21B are formed at equal spac...  
JPH07119686A
PURPOSE: To decrease manufacturing by comparatively simplifying the form of a blade, and to improve aerodynamic characteristics so as to obtain high efficiency. CONSTITUTION: A rotating impeller 2 is stored in a circular casing 1 having ...  
JPH07119685A
PURPOSE: To reduce noise by decreasing the fluid pressure applied to blades of a blower. CONSTITUTION: Plural blades 24 are installed along the inclination of an inner plate 22 at a fixed angle α to the radial direction toward the upstr...  
JPH0726635B2  
JPH0712713Y2  
JPH0783192A
PURPOSE: To provide a pressure controller for a blower capable of dissipating a residual pressure at a load end simultaneously with stoppage of operation of the blower. CONSTITUTION: A pressure controller for a blower comprises a blower ...  
JPH0724316B2  
JPH0754793A
PURPOSE: To provide a vortex flow blower in which an external diameter of a blower part can be formed in an external diameter or less of an electric motor so that the vortex flow blower can be sufficiently miniaturized. CONSTITUTION: An ...  
JPH0754797A
PURPOSE: To improve accuracy of dynamic balance by simplifying work for securing a balance weight. CONSTITUTION: A boss 3 is mounted on a small diametric part of a circular truncated cone-shaped hub 2 formed of a thin plate by securing a...  
JPH073038Y2  
JPH073238B2  
JPH0649845Y2  
JPH06330888A
PURPOSE: To reform a regenerative pump so as to make the flow rate of a liquid to be injected get off with smallness, in this pump that is able to fill up with the liquid in an operating passage and to use it as vacuum pump. CONSTITUTION...  
JPH0645672Y2  
JPH0689758B2  
JPH06299998A
PURPOSE: To provide a mixed flow fan capable of reducing the noise level in the working condition by specifying the shapes of rotor blades, a hub and stator blades. CONSTITUTION: A plurality rotor blades 1 are provided on the outer circu...  
JPH06299989A
PURPOSE: To provide an exhauster which can be easily installed in a narrow space, is lightweight and inexpensive. CONSTITUTION: A casing 2 is formed of an approximately circular cylindrical body 3 and a lower wall 4 and an upper wall 5 w...  
JPH06288380A
PURPOSE: To successively moderate the impact sound by the water flow from the groove of an impeller which reaches a discharge passage by an inclined surface by forming the inclined surface inclined by a prescribed angle in the flowing di...  
JPH06272692A
PURPOSE: To provide an impeller for a vortex flow blower, and a method for the manufacture thereof, allowing the easy removal of a casting die after a casting process as well as ensuring mechanical strength and the easy fabrication of th...  
JPH06272691A
PURPOSE: To allow the easy manufacture of an impeller having a complicated three-dimensional form of blades by arranging pre-molded blades in a casting die for molding a blade casing and, then, casting the blades into the casing as integ...  
JPH06272693A
PURPOSE: To provide a method for the manufacture of an impeller for a vortex flow blower, having the capability of easily coping even with the complicated form of a vortex flow blower impeller, allowing the application of the advanced th...  
JPH06249193A
PURPOSE: To enable improvement of high performance and three-dimensional formation by forming a hub blade construction body through a process of integrating blades with a hub separately from a blade casing and attaching it to the blade c...  
JPH06241192A
PURPOSE: To provide a vortex blower which can reduce turbulance of blowing, improves fluid performance and reduce noises. CONSTITUTION: An expansion flow passage 11 is arranged on an outer peripheral side of a partition part 13, while a ...  
JPH0663515B2  
JPH0660638B2  
JPH0660639B2  
JPH06221453A
PURPOSE: To provide a thermal safety valve and a gas pump with the above valve which has no energy loss resulting from constantly leaking gas quantity, and surely corresponds to the temperature limits of a shaft seal device and of lubric...  
JPH0658116B2  
JPH06506279A
(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。  
JPH06193587A
PURPOSE: To prevent entrance of a moisture content in handling gas to a bearing through an oil seal by means of the boss of an impeller. CONSTITUTION: A shaft 4 is caused to extend through the oil seal 3 of a casing 2 supported to a bear...  
JPH06173880A
PURPOSE: To increase pumping speed and discharge pressure and decrease operating power of a vacuum pump by arranging axial flow vacuum pumping molecular drag stages in a housing having an intake port and an exhaust port. CONSTITUTION: A ...  
JPH06505315A
(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。  
JPH06159298A
PURPOSE: To reduce the noise generated by the rotation of a fan by disposing interference structures for inducing a flow resistance in the opening cross sections of a gas intake channel and a gas discharge channel in a side channel for s...  
JPH06147186A
PURPOSE: To provide expected ultimate pressure at small number of steps so as to miniaturize a vacuum pump by providing bias grooves inclined to the shaft center of a rotary shaft on the inner peripheral surface of a fixed member, provid...  
JPH0633794B2  
JPH0688595A
PURPOSE: To reduce a direct emission noise out of both inlet and discharge ports of a vortex flow blower so sharply and a dominant sound pressure level too by interconnecting an expansion silencer and a vessel approximated to this silenc...  
JPH0610477B2  
JPH0610880A
PURPOSE: To provide a high efficient turbo-machine that can be used for laser gas circulation. CONSTITUTION: A turbo-machine is constituted as a gas compressor. Curved parts are arranged respectively in chamber blades 5 and radial blades...  
JPH05340390A
PURPOSE: To provide a fan structure in which noise by rotation is reduced. CONSTITUTION: Plural inclined surface plates 6 are provided on a circumferential surface of a cylindrical boss hub 2 to be inclined to it, and a root part of a bl...  
JPH0592495U
[Objects of the Invention] Improvement in the endurance of a drive motor, reduction-izing of a fluid noise, the small size of a fluid pump, and a weight saving are attained. [Elements of the Invention] Pressure room 13 is formed of casin...  
JPH05332289A
PURPOSE: To fix protrusions of blades tightly to a casing by passing the protrusions of the blades through holes in the casing and bending them in guides, and also bending their top ends to the blade side on the return guides. CONSTITUTI...  
JPH0545832Y2  

Matches 651 - 700 out of 1,521