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Patent Searching and Data


Matches 501 - 550 out of 1,889

Document Document Title
JP2004137974A
To provide a pump for a liquid chromatograph in which a liquid is stably fed at an extremely low flow rate and which is excellent in bubble discharging property at a starting time.At the starting time, the liquid is fed by a first plunge...  
JP3522332B2
PURPOSE: To keep a delivery amount at a constant value without the occurrence of pulsation when the rotary shaft of a moving blade rotation compression type fluid machine is rotated in a constant state. CONSTITUTION: The foundation curve...  
JP2004108884A
To provide a minute flow rate pump realizing fine flow rate liquid feeding accurately operated.The minute flow rate pump 10 is a syringe type liquid feeding pump provided with a syringe 12 and a plunger 14 for delivering a liquid in the ...  
JP2004108188A
To ensure nonpulsation in a nonpulsating pump by performing compensation according to pulsation varying with a change in the operating condition of the nonpulsating pump.At the beginning of the discharge period Pd of a diaphragm pump con...  
JP3516966B2
PURPOSE: To easily and surely eliminate the pulsation of the discharge amount of a pump by dispensing with a sliding key groove of a connecting rod. and moving a small cam follower along the connecting rod through a guide rail on the cir...  
JP2004092647A
To electronically attenuate essential variation factors of pump torque for generating motor torque output to maintain output pressure from a pump constant.Disclosure is made of a precision hydraulic energy delivery system that directly c...  
JP3509117B2
PURPOSE: To reduce working sound by eliminating sources generating working sound within a pump. CONSTITUTION: In the fluid pump for fluid pressure system where the fluid pump is equipped with a housing 15, a motor 11 including an one sid...  
JP3507212B2
PURPOSE: To provide a nonpulsating pump having a pulsation regulating mechanism which is constituted to regulate pulsation fluctuated by a pump operation condition to a minimum as low as possible during operation and have simple structur...  
JP3505962B2
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...  
JP2004077484A
To provide a constant flow involving no pulsating flow with respect to an analyzing apparatus by a low-priced, small-sized system.The liquid feeding system comprises a pump 10 for pumping fluid from a storage container 12, a pulsation at...  
JP2004053018A
To provide a control method for generating pressure using a booster, especially a control method for inspecting compressive strength of a pipe and allowing a simple and inexpensive constitution and long service life.One operation system ...  
JP2004044471A
To compensate for a decrease in discharge flow rate that occurs in an early stage of a discharge stroke in a non-pulsating pump.The amount of discharge flow rate qA decreases in an early stage of a discharge stroke Pd of a diaphragm pump...  
JP2004027905A
To provide a fluid feeding system capable of taking out quantitative of suspension in a circulation condition based on a comparatively easy constitution.This fluid feeding system is constituted to transfer and supply fluid from a fluid s...  
JP3455419B2
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 ...  
JP2003286940A
To provide a fluid transport system capable of preventing deterioration of characteristics.In this fluid transport system, a plurality of passages 34 or fluid reservoirs 30 are respectively communicating with a chamber 20 in a micropump ...  
JP3447240B2
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...  
JP2003254191A
To provide a fuel supply system capable of supplying the fuel to a fuel injection valve with a stable fuel pressure.The fuel supply system for an internal combustion engine is equipped with a fuel tank and a low pressure pump to supply t...  
JP3432512B2  
JP2003193962A
To reduce pulsation in a discharged fluid.An electromagnetic pump 1 comprises an magnetic rod 8 excited by applying a pulse current to an electromagnetic coil, an electromagnetic plunger 25 reciprocating with excitation and demagnetizati...  
JP3418425B2
PURPOSE: To mix two kinds of fluids at a specific ratio without pulsation by making the composite waveform of the respective flow waveforms in two pumps constant, and determining the cam shape for one other pump in such a way that the fl...  
JP3419498B2
PURPOSE: To perform simply the control of a swash plate inclining angle and the lubrication of a tilting shaft while the construction remains small and reduce vibrations and noises by introducing one intermediate pressure from a pluralit...  
JP2003517534A
(57) Summary book invention about the piston engine which mainly consisted of a driving shaft (1) and a set of modules each module, Each module carries out vibrational excitation of the engine by predetermined fundamental frequency (Fa, ...  
JP3411071B2
PURPOSE: To effectively limit pulsation by forming the shape of a driving cam so as to satisfy a specific condition for additionally discharging the replenishing amount of the discharging flow rate in the case of a driving cam mechanism ...  
JP3396397B2
To provide a simple and inexpensive means which quickly and easily executes conformity to a different pressure level corresponding to fuel of different kind, in a fuel supply device for a Diesel engine or the like. A constitution is prov...  
JP3392879B2  
JP3391446B2  
JP2003083240A
To efficiently smooth a pulse of a fluid in a solenoid pump for forcedly opening/closing a check valve provided on the upstream side rather than a solenoid valve by an opening/closing action of the solenoid valve.In the solenoid pump inc...  
JP2003065217A
To provide a fluid suction-delivery device capable of continuously sucking and delivering fluid by a specific flow rate and pressure without substantially causing pulsation even in a single unit.This fluid suction-delivery device is prov...  
JP2003056501A
To suppress pressure variation with minor changes in an existing hydraulic circuit, operable over a wide pressure range and miniaturizable as compared to an accumulator. When pressure in an oil passage 11 rises, a piston 3 displaces with...  
JP3380874B2  
JP2003049769A
To provide a compressor capable of a reduction in a development cost and an improvement in productivity in order to realize vibration suppression over various rotational order components. An integrally constructed damper unit 50 is mount...  
JP3376004B2  
JP2003028077A
To reduce noise especially caused by operation of a delivery valve with a simple structure in a plunger type pump device.This plunger type pump device is provided with a plunger 2 slidably accommodated in a housing and arranged so that a...  
JP2003503630A
(57) Especially summary book invention relates to the piston pump (10) for the liquid pressure vehicle brake equipment by which slip control was carried out. Since pressure pulsation is buffered, in the present invention, preparing an ir...  
JP2003501585A
(57) Summary book invention relates to the pump designed to carry out pumping of the 1st liquid called a transfer liquid. A pump has the main unit (18) for carrying out pumping of the transfer liquid which operates with the helper unit (...  
JP2003003966A
To provide a pump or a compressor at a low cost which can generate a high pressure with no pulsation.A pressure chamber 3 (31, 32, 33) supplying a fluid pressurized by a reciprocating motion of a piston 1 is provided in the inside of the...  
JP2002346450A
To provide a liquid ejecting apparatus which can start and stop to eject, at a high speed and without compression and destruction of powder, various powdered materials such as adhesive, clean solder, fluorescence material, grease, paint,...  
JP2002540518A
(57) A summary, a subject, and solution means The pressure device and method for heightening the water pressure supplied from a water supply system are offered. A pressure device is connected between wafer equipment and a semiconductor b...  
JP2002538360A
(57) Summary book invention is a liquid pressure type pump unit (1), This liquid pressure type pump unit (1) is equipped with two or more pumping elements (2) arranged at one plane, and these pumping elements (2), respectively One pump c...  
JP3342935B2  
JP2002322986A
To solve the problems with a conventional pump that pressure loss is great and reliability of the pump is low because of several valves; that a cycle in which the capacity of a pump chamber is increased and decreased is long, and even if...  
JP3331489B2  
JP2002532656A
(57) A summary, a subject, and solution means The present invention relates to the pressurization system for sending a liquid without pulsation. The system of the present invention can be used in semiconductor industry for the liquefied ...  
JP3328591B2
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 ...  
JP2002531754A
(57) The fluid hydraulic pump in which summary justification is possible and which can operate so that direction reversal is possible is indicated for use of the elevator driven with liquid pressure. A pump has the cylinder and piston wh...  
JP3322733B2  
JP3319207B2
PURPOSE: To improve self-priming liquid suction pump head and prevent the pulsation of liquid in a liquid suction hose by providing a check valve allowing the unidirectional flow of liquid from the liquid suction hose to a liquid storage...  
JP3318354B2
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 ...  
JP3314186B1
[Summary] Without causing pulsation substantially, even if it is subject 1 set, it draws in continuously and the suction discharge equipment of the fluid which can be continuously breathed out by a fixed flow and pressure is offered. Sol...  
JP3310566B2
To suppress occurrence of pulsation so as to continuously and smoothly circulate and transport fluid, and besides, reduce to a large extent an arranging space by simplifying the structure of a piping and miniaturizing the whole of a pump...  

Matches 501 - 550 out of 1,889