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Patent Searching and Data


Matches 901 - 950 out of 1,839

Document Document Title
JP2002327857
To prevent noise due to repeated overshooting and undershooting in blocking a pilot hole of a diaphragm valve with a valve element fixed to a plunger in a flow passage closing operation, wherein a phenomenon (overshoot) such that a seat ...  
JP2002323927
To disclose a method related to a flow rate control valve used for the fuel injection device of an internal combustion engine.A valve, i.e., a ball inverting orifice imposes 1st flow rate limitation on a substance which flows through the...  
JP2002323273
To provide an expansion valve and an air conditioner that have a small amount for pressure loss, and can prevent noise from being generated.In the expansion valve 100, noise is reduced by the functions of a porous body 22 at the upstream...  
JP2002310309
To provide a spool valve for maintaining the smooth flow of a fluid while properly and easily setting the positional relationship of a spool relative to a sleeve.The spool valve comprises a first communication port 4d opening to a cylind...  
JP3358428
To provide a pneumatic regulator which can be mounted on an end cap of a pneumatic tool and reduces exhaust sound and reaction which are generated when an air hose is removed. A piston 5 and a poppet valve holder 6 are arranged in opposi...  
JP2002295702
To effectively prevent the occurrence of abnormal sound caused by the vibration of a valve element in opening a valve.In a spring balance type valve, a helical compression spring 20 is stored in a spring storing chamber 34 of a spring st...  
JP2002285596
To provide a spout capable of suppressing an impulsive sound, caused by a water hammer, while eliminating occurrence of water leakage.This spout is provided with a valve seat (6a) which is formed in a main body (1) so as to partition a p...  
JP2002286161
To provide a hot and cold water mixing cock preventing pulsation of a control valve element, and capable of providing a stable discharging water temperature.A damper mechanism is arranged by fluid resistance by going in and out on the in...  
JP2002286158
To provide an electromagnetic stop cock capable of surely operating and preventing occurrence of a water hammer.A diaphragm 32 is provided on a pressure receiving part of a valve shaft 2 having a valve seat packing 6 opening and closing ...  
JP2002286153
To provide a solenoid valve capable of easily changing frequency of propagating pressure pulsation without separately providing a tank to prevent propagation of pressure pulsation caused by turning on and off a solenoid valve.A cylindric...  
JP2002276850
To provide a single lever type combination faucet capable of positively preventing a water hammer and suppressing flow rate fluctuation by a simple composition.In the single lever combination faucet, a valve unit 3 is provided built in w...  
JP2002276851
To provide a refrigerant control valve with a charge port preventing an eddy current of refrigerant inside the valve and noise generated by the eddy current.In the refrigerant control valve with the charge port, the charge port is screwe...  
JP2002267043
To provide an underwater water release valve which is provided on a downstream end of a water conduit pipe and reduces the vibration and noise generated during the underwater water release.In this underwater water release valve in which ...  
JP2002267032
To provide a ball check valve which is very simple in structure of a valve body, easy in manufacture, small in parts number, easy in disassembly/ assembly, and excellent in fluid back-flow preventing performance.An inflow port 6 opened d...  
JP2002256601
To further improve a top for controlling a flow rate capable of controlling the maximum quantity of water so that the quantity of water larger than a certain extent does not flow out even when a faucet is fully opened unconsciously.In th...  
JP2002250452
To provide a diaphragm valve which suppresses clogging of due to impurities such as dust, in a breed hole and surely carries out the operation of an opening and a closing action.This diaphragm valve 10 is equipped with a casing 20 with a...  
JP3344283
To prevent the occurrence of cavitation when a construction machine is stopped. A counterbalance valve 20 comprises a body 21; a spool 22 inserted in a spool hole 25; feed and discharge passages 29 and 30 connected to a pump 26 or tank 2...  
JP3343301
PURPOSE: To provide a flow regulating valve facilitating assembly further to decrease generating a noise, by integrally forming a valve element guide and a shaft guide. CONSTITUTION: In front of a shaft guide 5, a valve element guide 9 a...  
JP2002235969
To provide an air conditioner, in which a dehumidification operation can be performed in a reduced noise for a long period of time.A use-side heat exchanger constituting a refrigerating cycle is divided thermally in a 1st heat exchanger ...  
JP2002235970
To provide a high quality air conditioner, in which a dry valve for dehumidification operation improved in productivity is used.A use-side heat exchanger constituting a refrigerating cycle is divided thermally in a 1st heat exchanger and...  
JP2002235719
To adjustably move a substance between spaces divided through a partition wall without allowing the substance inside a partition chamber to flow at a time toward the outside, without completely releasing a connection mechanism between a ...  
JP2002228041
To prevent generation of a water hammering by a rapid stop of water flow resulting from rapid rotation of a cylinder valve element of a valve which includes an opening for passing water provided on the cylinder valve element of a cylindr...  
JP2002228026
To provide a check valve for liquid capable of slowly opening and closing valve for not generating vibration (noises) even if a shock flow such as a water hammering phenomenon happens.An oil accumulation chamber 15 increasing and decreas...  
JP2002213623
To provide a butterfly valve with built-in auxiliary valve which can easily control flow in a small opening region of both the valve elements, while avoiding generation of cavitation apprehended in the small opening region of the main/au...  
JP2002215243
To obtain a stable small flow rate even when disturbance is generated in a flow and to execute stable valve opening/closing action without generating a water hammer.When the water pressure P4 of an outflow room 24 is a prescribed value a...  
JP2002213644
To provide a faucet, equipped with a check valve having a water hammer relaxing mechanism capable of reducing water hammer noises generated, when preventing the feed of a back-flowing water onto the upstream side.A valve seat member 11, ...  
JP2002210394
To adjust an amount of water of a nozzle capable of changing an angle of water-discharge angle.The water-saving valve for variable nozzle has an annular flange capable of being clamped between an inner end surface of a connection cylinde...  
JP2002206821
To provide a solenoid valve having a throttling mechanism showing a superior silent characteristic and a superior anti-stain characteristic in a throttling passage.A helical groove 17 is formed at an inner circumferential surface of a va...  
JP2002202060
To provide a compressor capable of absorbing noise and vibration generated by a pulsation phenomenon of fluid delivered under high pressure.This compressor is composed of a valve seat 6 for respectively forming an inflow port 2 in which ...  
JP2002195452
To reduce a pressure loss of a float valve.In a change-over valve for alternately making the certain amount of service water flow to two output ports provided to a valve body using a water pressure supplied from a water pipe, the float v...  
JP2002195421
To provide an eccentric butterfly valve causing little cavitation at a valve contraction flow section, suppressing noise, reducing the change quantity of the Cv value per shift quantity of valve opening, improving controllability, having...  
JP2002188735
To prevent a valve equipped with an air-entraining function capable of preventing the generation of a cavitation at the lower end of a door body and inhibiting the generation of vibration and noise.In the valve, the door body 16 disposed...  
JP2002188793
To arrange an air vent valve for discharging air flowing into a trap at a position free from the influence of an abnormal pressure generated in a primary side of piping and without receiving the influence of the installation of a protect...  
JP2002181230
To compactly attach various kinds of valves and a water hammer preventer in a narrow space by combining both.A buffer chamber 4 is formed of a main body 1 and a lid member 2. A valve unit 7 is slidably arranged via coil springs 8, 9 in t...  
JP2002181231
To provide a force feed device for liquid capable of absorbing and preventing water hammering.A check valve 30 is attached to a force feed liquid flow-in port 19, and a check valve 31 is attached to a liquid discharge port 20. The check ...  
JP2002174353
To solve the problem in a conventional pilot valve type solenoid feed valve, causing its high cost and bad workability due to the adaptation of an energy absorbing cylindrical member or the like as a diaphragm valve.In this solenoid feed...  
JP2002168408
To provide a steam transformation value which exhibits such an epoch-making action and effect that are not seen in the past.This steam transformation valve reduces the temperature and pressure of high-temperature high-pressure steam S fl...  
JP2002168409
To provide a steam transformation valve which exhibits such an epoch-making action and effect that are not seen in the past.This steam transformation valve has a first port 1 through which high-temperature high-pressure steam S is made t...  
JP2002168370
To provide a water flow control device of a simple structure in which an operation can be easily conducted, and in which a water stopping effect is secured.A water flow path parted by a partition plate is provided in a seat body 1, and a...  
JP2002156061
To provide an instantaneous operation preventing-type gas discharge preventing device suitably used for a bulk, having a blocking operation delaying mechanism of a simple structure not immediately blocking a gas flow hole even when a gas...  
JP3308470
To provide a flow noise control system that is able to check any noise to be produced at a time when a throttle valve installed in an intake passage or the like of an internal combustion engine is opened. Two circular low barrier members...  
JP3306803
To provide a refilling ring for damping the vibration of a valve assembly during the end portion of operation cycle of a flushing valve and a flushing valve equipped with the refilling ring. This flushing valve is equipped with a main bo...  
JP3308142
To prevent generation of water hammer effectively by providing with a buffer whose number of parts are reduced, and which is simple, and which is manufactured easily. A groove 7 in which at least one of a partition part 7a is formed is a...  
JP3305163
PURPOSE: To perform stable operation without generating vibration even when a low rate of an injection medium passing through a supply valve is temporarily increased by a method wherein a valve element support tool is mounted on the inje...  
JP3296194
To provide a check valve device having a simple structure, which can surely relieve increased pressure from a primary side into a secondary side. A guide member 50 is coaxially arranged in a sleeve 42, and is held by a ring 52. A valve r...  
JP2002106741
To provide a relief valve capable of surely preventing blow-by from the relief valve in demagnetizing a solenoid and of automatically exerting its intrinsic relief function in magnetizing the solenoid.A main valve element 16 facing to a ...  
JP2002106724
To provide a hydraulic torque reducing type butterfly valve capable of reducing operation torque of a valve element in intermediate opening.The valve element 4 rotating around an axis of a valve rod 3 is arranged at the inside of a valve...  
JP2002106748
To provide a pilot type diaphragm valve capable of effectively reducing water hammer in closing the valve and of restraining the occurrence of operation failure due to dust jamming, in a pilot type diaphragm valve suitably used for a flu...  
JP2002098445
To provide a valve element in which generation of the flowing sound of refrigerant can be prevented.In a needle valve (valve element) 156 having one closed end part being fixed removably to the valve seat part and the other tubular open ...  
JP2002098444
To obtain an expansion valve for refrigeration cycle in which generation of high frequency sound is prevented at the time of starting at a low cost.In an expansion valve arranged such that the flow of refrigerant being jetted from a refr...  

Matches 901 - 950 out of 1,839