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Patent Searching and Data


Matches 901 - 950 out of 1,887

Document Document Title
JPH0633871A
PURPOSE: To obtain a pulsation pressure absorbing device for effectively absorbing the pulsation pressure within a wide frequency range by the simple control for a variable throttle, securing the compactness of a device. CONSTITUTION: In...  
JPH0626449A
PURPOSE: To easily obtain the displacement amount which is given to the pulsation pressure generating means with a simple and inexpensive structure, and absorb pulsation pressure efficiently by measuring directly the amount of non- stead...  
JPH0626464A
PURPOSE: To provide a high pressure fuel feeder which can prevent a diaphragm from being adversely affected by the degradation or the like of the fuel feed performance of a fuel feed pump. CONSTITUTION: A fuel feed pump 3 is disposed at ...  
JPH0626448A
PURPOSE: To effectively absorb the pulsation pressure of wide-ranged frequency with a small space and at a low cost by incorporating a Helmholtz resonator which is a passive pulsation pressure generating means, into an active pulsation p...  
JPH0617752A
PURPOSE: To provide a pulsation reducing device which saves the manpower and performs rapid and accurate regulation by a method wherein when a fluctuation in a liquid pressure exceeds a specified range during suppression of pulsation phe...  
JPH0610829A
PURPOSE: To provide a cylindrical cam driven pulsation-free pump allowing simple, inexpensive and compact constitution. CONSTITUTION: In a double plunger pump, a cylindrical cam mechanism 30 is constituted in such a way as equipped with ...  
JPH061780U
[Objects of the Invention] Even if the operation speed of a hydraulic pump changes, the oil pressure pulsating control device which can make oil pressure pulsation control certainly is provided. [Elements of the Invention] Pulsating stat...  
JPH05321815A
PURPOSE: To control discharge pressure pulsation to the minimum at all times even under various operation conditions of low noise and low oscillation. CONSTITUTION: Control ports 20a, 20b are opened above a valve plate 2 to face the posi...  
JPH0583373U
[Objects of the Invention] Moreover cost is made cheap and it enables it to reduce the peak pressure of a main pump circuit, without needing a special installing space. [Elements of the Invention] Discharge port 11 of hydraulic pump 10 a...  
JPH05296142A
PURPOSE: To improve the noise-vibration performance of a plunger piston pump. CONSTITUTION: A plunger piston 2 performing its stroke by a cam 4 opens a fluid inlet port 2a in the vicinity of the suction stroke end, and sucks fluid into a...  
JPH05507780A
(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。  
JPH0578977U
[Objects of the Invention] Heroux John is prevented without reducing capacity efficiency. [Elements of the Invention] It comprises:Valve board 6 in which suction port 11 and discharge port 10 were formed, Cylinder block 2 which rotates i...  
JPH05263756A
PURPOSE: To suppress an operating fluid discharged to a large diameter part so as to prevent the generation of discharge pulsation, fluctuating pressure, operating fluid contraflow and surge pressure, and the damage of a pump by forming ...  
JPH05240150A
PURPOSE: To provide a method and a pumping apparatus for pumping products suitable for using in a packing machine for bactericidal treatment of particularly viscous products, dispensing with a means for compensating the pressure impact i...  
JPH05240149A
PURPOSE: To damp flow pulsation by providing an auxiliary compression volume rapidly discharged to each cylinder and slowly refilled from the high pressure side on an auxiliary compression connecting portion. CONSTITUTION: A chamber 7 ha...  
JPH05240161A
PURPOSE: To obtain a double membrane pump having a smallest possible surface area contacting the product so as to cause least possible corrosion for the transfer of the highly purified product by sealing two product chambers from compres...  
JPH0566275U
[Objects of the Invention] The check valve mechanism of the plunger pump which can prevent the cavitation leading to [, such as an allophone, ] generating certainly is provided. [Elements of the Invention] Valve housing 2 provided with a...  
JPH0564475U
[Objects of the Invention] Pulsation of the oil pressure in a hydraulic circuit is reduced, and it aims at measuring reduction of noise. [Elements of the Invention] Double gear motor 10 is installed near pump 8 exit, double gear motor 10...  
JPH05195947A
PURPOSE: To prevent cavitation in an oil pump. CONSTITUTION: A flow control device 8 interposed between the discharge passage 7 of an oil pump 2 and an engine 1 is provided with a main passage 21 for communicating the discharge passage 7...  
JPH05180153A
PURPOSE: To improve efficiency of a radial piston pump by preventing fluctuations of the radial piston pump and noises generated by the fluctuations, and further improving power output of a piston stroke and pressure formation. CONSTITUT...  
JPH05180159A
PURPOSE: To reduce a sudden change in pressure when a pump is started and stopped. CONSTITUTION: When a pump driving motor is started, it is gradually accelerated by a voltage reduction starter. When the motor is stopped, it is gradually...  
JPH05180161A
PURPOSE: To provide a pulsation-free flow by actuating a fluid circulation in which before a pumping piston of a delivering chamber reaches a position at which material is completely discharged, the pumping piston of an inhaling chamber ...  
JPH05180160A
PURPOSE: To finally restrain the influence of pulsatory flow to a small level, by shortening the cycle of the pulsatory flow. CONSTITUTION: A drive shaft 15 for rotating a main cam 12 and sub-cam 22 is rotated forward and backward within...  
JPH0547461U
[Objects of the Invention] Pulsation of the operation oil breathed out from the pump can be absorbed with a sufficient response, and a pulsating absorption effect provides a large pulsation absorber. [Elements of the Invention] 1st 室 1...  
JPH05141365A
PURPOSE: To provide a minimized hydropneumatic arrangement for automatically controlling the actuating and deactivating of an electric motor with least air leakage and increased adjustment volume by integrating a flow detector having a s...  
JPH05133323A
PURPOSE: To provide a reciprocating double-row displacement pump producing no pulsation or little pulsation in its discharge pressure. CONSTITUTION: When a driving second piston 31 which alternately drives a pair of pump piston cylinder ...  
JPH0532774U
[Objects of the Invention] The length size which meets in the direction of 8 axes of axes of rotation of pulsation absorber 19 and a pump is short-かく (ed). The part mark of a pump are lessened and structure is simplified. [Elements o...  
JPH05106550A
PURPOSE: To restrict a resonance pulsation to only a little amplitude by connecting a volume to a plenum part of a pump discharge part, and providing this volume with a nozzle having a proper length and sectional area. CONSTITUTION: For ...  
JPH0530474U
[Objects of the Invention] The pulse pressure of the discharge pressure leading to [, such as oscillating sound, ] generating is reduced. [Elements of the Invention] The 1st and 2nd pump room R which provides plunger 14 which synchronize...  
JPH0599118A
PURPOSE: To prevent a crankshaft from being long sized and to reduce a bending stress or twisting stress exerted on the crankshaft by shifting the central positions of respective suction ports and discharge ports arranged in a transverse...  
JPH0599119A
PURPOSE: To control the generation of cavitation in an expansion process by providing an internal pressure regulating mechanism for preventing a negative pressure in an inner chamber of a plunger from being lowered under the vapor pressu...  
JPH0522074B2  
JPH0571465A
PURPOSE: To obtain a large flow rate with a small-sized pump and substantially equalize two maximum discharge rates to each other even when the discharge rate is lowered by cavitation at a low temperature in a pump by which at least two ...  
JPH059514Y2  
JPH05501142A
(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。  
JPH05501138A
(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。  
JPH0544630A
PURPOSE: To provide a ports plate device which relieves the pressure change at the discharge port of an axial piston pump and prevents the noises by reducing the flow rate pulsation width at the discharge port. CONSTITUTION: A ports plat...  
JPH0512671U
[Objects of the Invention] forming no cavity part leading to remains air-bubbles generating -- decomposition -- an easy シリンジ piston pump is provided. [Elements of the Invention] If piston 11 is inserted in シリンジ 10, O ring...  
JPH0531181A
PURPOSE: To provide a highly reliable hemodialyzer to a patient by improving problems of a degrading in dialysis efficiency owing to an intermittent flow, a deterioration in mechanism components die to a frequent action of a partition, b...  
JPH0526152A
PURPOSE: To lower peak pressure in a cylinder so as to reduce vibration and noise and to improve durability and reliability. CONSTITUTION: A check valve 5 interposed in a discharge passage 4 connected to the cylinder chamber 3 in a pisto...  
JPH057976U
[Objects of the Invention] By providing an iris diaphragm while releasing a surplus style to the pump suction side, and making decompression multi stage, a rise of a speed head of water is pressed down and generating of air bubbles is pr...  
JPH056161U
[Objects of the Invention] Ease a rapid change of the pressure power inside a cylinder port at the time of the change of discharge and inhalation of operation, and provide a slanting board type piston pump with little pulsation or noise....  
JPH056159U
[Objects of the Invention] The cavitation which is set by puncturing of an introductory hole from the top dead center of the eccentric cam in a plunger, and occurs in the plunger interior of a room is prevented, and air bubbles were made...  
JPH0518352A
PURPOSE: To eliminate cavitation inside a pump when saturated fluid is pumped. CONSTITUTION: A piston 14 is a cylindrical block 18 having a hollow frustconical hole 20. The base bottom of the hollow frustconical hole 20 is oriented to th...  
JPH051002U
(57) [Abstract] [Objects of the Invention] With the elastic power of a spring, give elastic power to the hermetic container made from stainless steel, and lose problems, such as a life of the conventional bag body, and seal repair of a t...  
JPH04137273U  
JPH04137274U  
JPH04366090A
PURPOSE: To facilitate assembling of an inline type surge suppressor. CONSTITUTION: In a surge suppressor where a ladder member 72 made of resilient material is engaged with the circumference of a baffle member 78 which has fluid with pe...  
JPH04134612U  
JPH04134673U  

Matches 901 - 950 out of 1,887