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Patent Searching and Data


Matches 601 - 650 out of 1,878

Document Document Title
JP3046374B2  
JP2000505524A
(57) Summary book invention is a thing about the pumping installation which supplies and maintains the stable flow, This pumping installation is equipped with the pump unit (1a, 1b) of 2 and 3, and each pump unit is equipped with at leas...  
JP2000087846A
To provide a pump having a fixed suction amount and a feed amount. This method, performing suction/delivery of a fluid in a pipeline, includes using of a pump having a fluid pump conveying unit performing at least two alternate operation...  
JP3027181B2  
JP2000080980A
To miniaturize an entire pump and to reduce an area occupied by installing while ensuring the increase in the internal capacity of an air chamber used for reducing pulsation so as to increase a pulsation reducing effect. A reciprocating ...  
JP2000064955A
To provide a pump device capable of maintaining a pulsation- preventing function for a long time period. In a pump device, a diaphragm 200 made of a rubber and closing a communication passage 110 connecting a gas separation device 60 and...  
JP2000034975A
To maintain fluctuation of cylinder internal pressure to minimum, regardless of motion of a piston, by providing a partition wall partitioning into space communicable with the outside and closed space within an air tank connected with a ...  
JP2000500205A
(57) The 1st piston summary book invention in each driving cylinder, respectively, It is arranged movable with the front grade piston rod, and, moreover, action combination of each 1st piston of each other is carried out, It is related w...  
JP2994060B2  
JPH11336639A
To improve pumping efficiency and durability by preventing fuel leakage from a pump body attaching portion to a casing without being influenced by fastening at the time of attachment of a high pressure damper to the casing, and improving...  
JP2601640Y2  
JPH11324904A
To reduce the pulsation of a plunger pump by adding the raising force higher than the ordinary raising force to a piston for a short time when the ordinary falling force is added and the piston is directed from a bottom dead center to a ...  
JP2976663B2  
JP2998083B2
To properly perform the air supply and exhaust operation in interlocking with the expanding and contracting deformation of a diaphragm by forming an air flowing hole for flowing the air between an internal space and an air chamber, on a ...  
JPH11303802A
To provide the subject accumulator preventing a diaphragm from deforming and damaging caused by holding foreign matter in a slight gap between the diaphragm and a plate even when the foreign matter is mixed with the fuel. A diaphragm 86 ...  
JPH11512678A
(57) It is made to decrease the structure product of summary equipment. The hydraulic system (10) has the buffer room (17) in which formation was carried out by the hole with the stage (25). The diameter versus length ratio is between 1:...  
JPH11287180A
To loosen pulsation by respectively regulation stroke of pistons, and arranging control means for regulating a liquid rate respectively discharged by pistons at the time of a pump cycle. Two sapphire pistons 10, 20 of two pump units are ...  
JP2988299B2
PURPOSE: To reduce pulsation without bringing about cost-up or dropping the efficiency. CONSTITUTION: A hopper 1 is equipped with a pair of concrete cylinders 2L, 2R which are furnished with suction/discharge ports 3L, 3R, and a swing va...  
JPH11270458A
To properly perform the air supply and exhaust operation in interlocking with the expanding and contracting deformation of a diaphragm by forming an air flowing hole for flowing the air between an internal space and an air chamber, on a ...  
JPH11270459A
To secure the specified pulsation suppressing function and avoid occurrence of a serious situation such as leak of a transport liquid to the outside even in the course of long period of service in the condition that the elongation amount...  
JPH11270460A
To provide a pump in which pulsation width is suppressed through effective absorption of pulsation even in fluctuation of discharge pressure to allow the liquid to be continuously discharged smoothly and the space for installation can be...  
JP2954645B2  
JPH11247742A
To reduce the noise and vibration of a pump and improve the reliability of the pump and miniaturize the pump. A plunger pump 2 discharges fuel by the reciprocating movement of a plunger 21 and is provided with metal diaphragm type damper...  
JP2944715B2  
JP2942643B2  
JPH11229983A
To absorb the pulsation of a low frequency band by providing an orifice in the upstream more than an accumulator connected to a feeding side fuel passage between a single cylinder high-pressure fuel pump and a low- pressure fuel pump. Wh...  
JPH11218075A
To prevent the occurrence of pulsation by a piston pump and to prevent the occurrence of a break of a fire resisting material. In a force feed device to effect a force feed of a fire resisting material for the execution of a spray work b...  
JP2922488B1
[Summary] Subject It can miniaturize and the feed pressure pulsating reduction equipment of the high-pressure fuel pump which can absorb pulsation of a low frequency wave region is obtained. Solution means The accumulator 8 connected to ...  
JPH11193777A
To concurrently reduce a plurality of frequency components of pulsation contained in pressure fluid discharged from the hydraulic pump. A device for reducing pulsation of a hydraulic pump is provided with a plurality of branch pipes 5, 5...  
JP2948762B2
To prevent an outer size of a dash pot form being increased due to an arrangement of a chattering preventive valve within a cylinder of the dash pot and prevent a possibility of external leakage of oil caused by arranging the chattering ...  
JP2909783B2  
JPH11153085A
To allow mixture of some liquid components in a distribution ratio and at flow rate, being excellently controlled, so that the mixture is usable at, for example, liquid chromatography. A pump conveying system containing a liquid mixing d...  
JPH11117857A
To dampen pulsation at several frequencies, and to make first and second pulsation damping systems compact. In this device in which a first container 13 is arranged on the front end side of a branch pipe connected to a pipe line 3, and a...  
JPH1193789A
To shorten the distance between high-pressure fuel pump and a fuel injector to reduce the pulsation of the fuel, and stabilize the injection quantity of the fuel by providing a high-pressure regulator for regulating the pressure of the f...  
JP11082298A
To provide a vibration damping device which can surely damp axial and torsional vibrations and is easily assembled at a low cost. This vibration damping device is constituted of first and second vibration damping parts assemblies 3, 4. T...  
JP11082289A
To restrain delivering pulsation by reducing weight of a piston and decreasing a dead volume in a cylinder. The weight of respective pistons 11 is reduced as a hollow piston having a hollow part 11A, and in the respective cylinders 9 of ...  
JP11082294A
To reduce vibration or noise occurring from an electromagnetic pump by reducing the weight of a piston jointed to the plunger of the electromagnetic pump. A guide pipe 7 is fixed in an electromagnetic coil 2, and an electromagnetic plung...  
JPH1172080A
To provide a hydraulic drive system with simplified structure. In a hydraulic drive system having a pump and multiple hydraulic energy consuming equipment wherein a directional control valve is connected to the front of the consuming equ...  
JP11062849A
To provide an axial piston pump motor capable of effectively decreasing noise to be generated with pulsation of discharge liquid and capable of being manufactured into its compact size at low cost. In an axial piston pump motor, pistons ...  
JP2591498Y2  
JPH11502581A
(57) A summary reciprocation piston pump (10) sends out a liquid without pulsation. This pump fits the use within compact environment, or sending out of a little liquids. This pump contains two pistons (18, 48) with the pumping chamber w...  
JPH11501571A
(57) The non-mind paint spray pump (10) by summary book invention makes the fluid flow which passes along a valve increase, without reducing the response time of this valve (66), or priming operation of a system according to this structu...  
JP11030166A
To restrain abrasion of a seal material by preventing the shakes of a cap in a simple structure. This resonator device for a high-pressure fuel pump is mounted among a casing 18 forming a fuel passage 22, a cover 29 mounted on the casing...  
JP2852032B2
A diaphragm pump is described having a housing defining pumping and buffer chambers separated by a common wall. An outlet discharges fluid from the pumping chamber to the buffer chamber and a reciprocating diaphragm varies the volume of ...  
JPH112187A
To minimize the pressure fluctuation in the switching of a pump, by calculating the compensating motion form by sampling the pump pressure characteristic every pumping cycle, and applying the form to a motor which drives the pump. In a s...  
JPH10513525A
(57) The 静液 pressure pump (10) in which summary regulation is possible, and the thing of the form that are especially a piston pump and a thrust ring (22) has equipment for active silence through the modulating device (35) of a liqui...  
JPH10331735A
To prevent abnormal pressure fluctuation of fuel to prevent generation of noise in a device provided with a high pressure fuel pump having a bellows chamber by providing a means for restraining the abnormal pressure fluctuation caused by...  
JP2835519B2  
JP2834520B2  
JPH10311261A
To enhance pump efficiency by applying positive pressure directional force without caring about damage and resonance of a diaphragm by superposing a plate member having a cantilever tongue piece-shaped flap piece on a pulse pressure cham...  

Matches 601 - 650 out of 1,878