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Matches 551 - 600 out of 1,875

Document Document Title
JP2002048055A
To lower the pressure pulse generated from a hydraulic pump with the simple structure without having a complicated mechanism so as to reduce the vibration and the noise.In a pressure pulse lowering device for lowering the pressure pulse ...  
JP3273570B2
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 ...  
JP3263779B2
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...  
JP2001526360A
(-- 57) summary -- especially the electric cooling compressor for refrigeration for home use and frozen equipment, Have the pressure room formed in an outside casing, internal body, and this internal body, and a lid which can close the o...  
JP3235100B2  
JP3233409B2  
JP2001317449A
To provide a pulsation damping device for improving responsiveness of opening and closing operation of air supply exhaust valves and securing pulsation reducing performance by separately and independently juxtaposing the air supply valve...  
JP3221672B2  
JP2001289156A
To provide a hydraulic pump integral-type hydraulic pulsation reducer capable of solving a problem in a conventional device by forming a path with a diameter smaller than an inner diameter of a side branch on the hydraulic pump. A branch...  
JP2001263223A
To provide twin plunger pumps for enhancing operational reliability by almost completely eliminating pulsation of a delivery flow rate and delivery pressure, and eliminating an opening-closing operation type valve.In these twin plunger p...  
JP2001248563A
To provide a pulsation type diaphragm pump capable of reducing assembling man-hours with reduced number of parts without impairing the reliability for a pump function.Valve seat bodies 22, 27 of a suction valve 21 and discharge valve 26 ...  
JP2001248561A
To provide a reliable pulsation type diaphragm pump capable of reducing assembling man-hours with redeemed number of parts and having a stable pump action.This pump consists of valve seat bodies 22, 27 protruding a suction valve 21 and a...  
JP2001248562A
To provide a pulsation type diaphragm pump capable of reducing assembling man-hours with reduced number of parts and usable in carious kinds of engines without impairing the reliability for a pump function.This pump consists of valve sea...  
JP2001214853A
To improve a pulsation absorbing effect by preventing dissolution of air in liquid by forming respective spheres positioned on the liquid out of an inelastic material, and coaxially forming an inlet and an outlet of a reciprocating pump....  
JP3218231B2
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 ...  
JP2001207927A
To reduce pulsation of fuel pressure and to restrain generation of noise by restarining generation of resonance at a connecting part on a head end of low pressure fuel intake piping.This fuel supply device is furnished with a fuel tank 1...  
JP3205909B2
To provide a pump having a pulse motion reduction device which can further improve pulse motion reduction effect. A reciprocating pump part 4 is formed on one side part of a pump head composing wall 1 provided with an inflow passage 2 an...  
JP2001182648A
To reduce noise by hydraulic pressure fluctuation with a excellent follow-up in a small size, and to preclude the possibility of mixing of gas in oil in a hydraulic pump. In this gear pump, a pair of driving gear 5 and driven gear 6 are ...  
JP2001165038A
To reduce vibration of a hydraulic pipe due to pulsation, when an oil hydraulic pump is operated, and suppress transmission of vibration of a pulsation reducing hose to a structure in the periphery of the oil hydraulic pump.A tip end sid...  
JP2001153051A
To prevent a depositing material from staying and accumulating in the liquid compartment of a pump even if transfer liquid containing a depositing material such as slurry is used.A barrier 7 such as an axially reciprocating bellows, diap...  
JP2001153055A
To prevent a depositing material from staying and accumulating in a check valve for suction and a check valve for discharge, even if transfer liquid containing a depositing material such as slurry and the like is used.An axially retracta...  
JP2001124282A
To provide a surge suppressing device of an improved and simple form. This invented surge suppressing device is provided with a chamber divided into a first sub-chamber and a second sub-chamber by a diaphragm, and a diaphragm driven part...  
JP2001123959A
To provide a pump having a pulse motion reduction device which can further improve pulse motion reduction effect. A reciprocating pump part 4 is formed on one side part of a pump head composing wall 1 provided with an inflow passage 2 an...  
JP2001115950A
To solve such a problem that an already known surge suppressing device is enlarged while holding an advantage of the surge suppressing device. In the surge suppressing device including a housing and a soft diaphragm, and wherein the hous...  
JP3180948B2
To provide a diaphragm damper which is capable of preventing leakage and damage. Because a diaphragm damper has a constitution that a bonding member 61 bonding the peripheral edge part of a diaphragm 49 to a half body 97 in which a reces...  
JP2001104157A
To prevent hot water from scattering from an injection port by using a diaphragm pump for a feeding pump in order to prevent the hot water-feeding from becoming impossible due to foams, and at the same time, reducing a pulsated current d...  
JP2001082290A
To save a material cost, to improve a processing property, and to reduce a manufacturing cost by making a first member from a stainless steel and making a second member from a plated low-carbon steel in a low pressure damper welding port...  
JP2001073907A
To provided a single cylinder type high pressure pump which has a longer life, is simply formed, and can manufactured at low cost. A pump element stored inside a pump housing 1 is provided with a pump plunger 5, the pump plunger 5 is sto...  
JP2001065780A
To provide a pulsation damping device with high pulsation damping efficiency. In a pulsation damping device connected between a fluid generating source 3 for generating a fluid having pulsation and a work 5 for intermittently consuming t...  
JP3170142B2
PURPOSE: To provide a fluid machine having high reliability, wherein the problem that piping vibration is generated and noise is increased due to large pulsation of discharged fluid is solved, and double tooth type turning scroll formed ...  
JP3165876B2
PURPOSE: To provide a liquid hammering preventing apparatus with a simple structure so as to be applied in various positions by duely operating liquid hammering absorber even if pressure of liquid which is supplied is changed. CONSTITUTI...  
JP2001059466A
To improve volume efficiency and prevent generation of fretting of a valve by forming a back pressure chamber communicated with a high pressure fuel discharge passage so as to face a center part of a plate having a fuel discharge port on...  
JP2001055961A
To obtain a high pressure fuel supplying device which can reduce pulsative pressure of the fuel without increasing the size, and attain improvement of durability. This high pressure supplying device 200 has followings. A high pressure fu...  
JP2001029849A
To equalize the pump performance of both left and right reciprocal plunger type pumps to each other. This sprayer is constituted so that the outer periphery of the plunger 7 reciprocally moving left and right through an eccentric working...  
JP3131698B2  
JP2000325848A
To unnecessitate a relief valve for preventing water hammer or a flow control valve for controlling the height of spouted water by providing a pressure storage device for absorbing the pressure change in a water passage pipe in a fountai...  
JP2000329059A
To provide a pump equipped with a pulsation buffering device which cannot be a hindrance to layout, in mounting and provide a chemical spraying machine optimumly laid out including the pump. A frame 106 of a chemical spraying machine is ...  
JP3111790B2  
JP2000291570A
To dissolve noise problems by attenuating vibration of a cam ring, and the pulsation of fluid at the discharge side of this variable displacement pump, and to simplify the structure as a whole so as to for it into a compact one. A first ...  
JP3099289B2  
JP2000265944A
To damp oil pressure pulsation at low cost without providing any additional parts, without increasing the number of parts and the size, and to effectively damp oil pressure pulsation having high frequencies. Pulsation damping oil storage...  
JP2000234695A
To attenuate the pulsation of a plural frequencies, and to downsize the whole of a device. An inner cylindrical body 11 is connected to the middle of a pipe path 3. An outer cylindrical body 14 having both ends closed by a closing plate ...  
JP3081923B2  
JP3072555B2  
JP2000205120A
To enhance the advantages of a reciprocating pump by improving the dimension of a slider/clank drive system, newly developing an extremely low temperature type/sealed type structure, and converting it a linear motor power type structure....  
JP3064014B2  
JP3064686B2  
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...  

Matches 551 - 600 out of 1,875