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Patent Searching and Data


Matches 751 - 800 out of 1,865

Document Document Title
JP2005308167
To provide the water hammer prevention device of a check valve capable of preventing the water hammer action effectively by simple structure.A retainer pipe 15 of both ends opening is arranged into a short pipe 7 forming the annular spac...  
JP2005288183
To provide a shower apparatus, reducing water hammer when an opening and closing valve closes a flow route, or buffering an increase in the internal pressure of the flow route when the opening and closing valve closes the flow route, the...  
JP2005291201
To provide a gas valve achieving sonic flow at lower pressure ratios than in conventional designs.A high recovery sonic gas valve with the inlet flow entering transverse and orthogonal to the outlet flow is presented. The configuration c...  
JP2005282683
To provide a normally opened solenoid valve having improved liquid pressure controllability by restricting the flow amount of operating liquid to a desired adequate amount.The normally opened solenoid valve 10 comprises a fixed core 20, ...  
JP2005282676
To improve the property (linear property) of part shown by an approximately primary straight line of the flow-out amount of fluid in flow-out amount variation (flow control) by utilizing the original rotating property of an impeller flow...  
JP2005257110
To completely solve problems on fracture of a welding part of a rotor case of an electric control valve caused by water hammer phenomenon in opening a liquid supply solenoid valve, and the deformation of a valve element and a valve seat ...  
JP3721256
To reduce erosion and noise emission by suppressing cabitation generated when a poppet has moved to cause generation of a flow from the high to the low pressure side. A poppet valve is configured with a body 1, an upstream port 3 and a d...  
JP2005248948
To provide a silencer for a pneumatic machine that can run for a long time without requiring maintenance or inspection.This silencer 1 for a pneumatic machine comprises an outer porous filter 2, and an inner porous filter 3 disposed on t...  
JP3718631
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 f...  
JP2005240777
To provide a poppet valve device including a poppet valve installed, in particular on an electronically controlled fuel injection device, for opening and closing a liquid passage in a minute time, capable of precluding such occurrences e...  
JP2005233298
To provide a pilot valve having a mechanism to reduce water hammering at the time of valve closing while the responsiveness to the fluid control signal is well maintained and provide a pneumatic cylinder having a mechanism to relieve the...  
JP3712678
To provide a valve device which conducts valve opening operation without abnormally increasing the pressure in a valve casing and requiring large operation force. A marking for indicating a rotating position of a handle 12 when a valve e...  
JP2005226690
To provide a water hammer arrestor structure having simple and lower-cost construction for suppressing damage to a pipe due to water hammer.At a required position in a first water supply pipe 42 connected to an external water system, an ...  
JP2005226737
To provide a concentric lever of a positioner capable of effectively preventing it from being loosened and fallen in the positioner for controlling a rotary valve.This concentric lever of the positioner connected to the camshaft of the p...  
JP3709196
To provide a triple eccentric butterfly valve to solve such problems in conventional triple eccentric butterfly valves that it is difficult to control flow of fluid when a valve element is slightly opened, and that because fluid passing ...  
JP2005213908
To provide a combination faucet which can minimize an unusual sound generated at a location on which a push button abuts at the time of pressing operation of the same, and positively eliminates an uneasy feeling caused by the unusual sou...  
JP3706340
To provide a valve device of a hermetic compressor with improved structure to freely adjust the valve height by the displacement and the refrigerant discharge pressure. This valve device of the hermetic compressor comprises a valve plate...  
JP2005208712
To rapidly open a fluid channel within a short period of time without causing any water hammer by an extremely simple device or operation.This water hammer-less opening device is configured of an actuator operation type valve formed in a...  
JP3703727
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...  
JP2005195145
To provide a gas control valve and a fuel cell power generation system advantageous to downsizing.The gas control valve 1 is equipped with a primary side passage 61; a secondary side passage 71; a pressure receiving member 3; a throttle ...  
JP2005188550
To provide a faucet device using a diaphragm valve for preventing the occurrence of water hammer.The faucet device comprises the diaphragm valve 4 for opening/closing a passage between a primary water supply path to which water having pr...  
JP3695564
To promote the simplification of structure, reducing the number of part items and assembling man-hour as well as manufacturing cost, and improve the sensitivity of a power steering system. A damper valve 10 of a hydraulic power steering ...  
JP2005180504
To provide an orifice member, keeping the bore diameter accuracy of an orifice.This orifice member is disposed in the midway of a passage, provided with an orifice 38 connecting the passage, and fitted by applying load to a sealing part ...  
JP2005180690
To provide a ball valve which prevents noise generated by a passage for a fluid which passes through a ball in an intermediate open position of the valve.The ball valve 10 for controlling a rate of flow has a ball 14 which is capable of ...  
JP3689329
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...  
JP2005155677
To provide a novel bellows valve having improved impact pressure resistance under the condition of water hammer and achieving higher reliability and longer life.The bellows valve comprises a bellows part for covering a portion of a valve...  
JP2005155804
To provide a notched spool type flow control valve capable of preventing the separation of fluid in a valve chest and superior in its quietness.This notched spool type flow control valve comprises a sleeve 4 having the valve chest 3 on w...  
JP2005147336
To provide an energy absorbing and silencing device, exhibiting uniform energy absorbing and silencing effect in a flow control valve and installed within the length of an existing pipeline.In this energy absorbing and silencing device f...  
JP3682315
PURPOSE: To facilitate such feed flow control as appreciably lowers the level of the feed flow characteristic curve even when system pressure is high. CONSTITUTION: A feed flow throttle comprises independently operable partial feed flow ...  
JP3675288
To reduce a cavitation generated in a valve contracted flow part, and to suppress noises and improve the controllability by suppressing the cavitation. This eccentric butterfly valve, in which a seal face between the circumferential face...  
JP3676727
To prevent a valve from biting at a valve seat of a seated part in an opening/closing valve, and to suppress a drastic increase of a flow rate of a fluid flowing in an opening at the primary stage of an increase in area of the opening fo...  
JP3673185
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...  
JP3672380
To prevent such fear that functional parts may not be destroyed even though a fluid shock is applied, by arranging a valve element holder which is fixed in a valve main body and in which a valve element is slid on its inner wall, and a s...  
JP3664631
To hold calmness by preventing abutment sound generated in operating a solenoid valve. This solenoid valve is provided with a disk member 46 connected to one end of a movable iron core 42 and integrally interlocked with the movable iron ...  
JP2005090544
To provide a vacuum breaker having a pressure gauge that is hardly affected by vacuum and pulsation pressure.In a valve casing 1 having an inflow port 2 to be connected to a fluid piping system (unillustrated) and an open air port 3 to b...  
JP2005090555
To provide a low-priced pressure reducing control valve capable of effectively restricting the generation of cavitation due to high-pressure fluid and having a long service life.In the pressure reducing control valve provided with a pres...  
JP2005083690
To solve the problems of being complicated in a structure, increasing part cost and assembling cost, and being inferior in reliability, which are possessed by a conventional dehumidifying orifice device capable of changing an orifice qua...  
JP2005069335
To provide a structure for supporting a valve body in a control valve and a pressure control valve using this supporting structure which can exert stable flow characteristics over a long period of time, having less particles generated, a...  
JP3655788
To provide a shockless valve working respectively in flows in both directions of one direction and the other direction. A plunger 33 is interfitted slidably in a valve body 32, and a spring 42 for holding the plunger 33 on a neutral posi...  
JP3652970
To reduce the valve driving force of a flow control valve used in a power generating plant. A valve element part 12 is vertically movably arranged in a body 40. When a valve stem 41 is pulled up, a valve stem bottom 48 is separated from ...  
JP3652940
To prevent the generation of a harmful impact wave in a nozzle situated downstream as a low pressure region is insured in the vicinity of the tip of a poppet valve and to provide a poppet valve device which is to be increased in a thrust...  
JP2005054918
To provide a compact cage valve capable of preventing occurrence of damages, vibration, noise or cavitation of the valve.In the cage valve provided with a cage 7 which is fixed in one chamber divided by a partition 2 to divide the inside...  
JP2005035482
To provide a flow control valve which suppresses occurrence of cavitation in a discharge passage.When the discharge passage 5 is communicated with a supply passage 4 via the inside of a spool hole 6 by movement of a spool S, the flow con...  
JP2005035481
To provide a flow control valve, preventing abrasion of the bottom of a discharge recessed part and its periphery even if cavitation occurs.In this flow control valve, when a discharge passage 5 and a discharge communicating passage 29 a...  
JP2005030115
To provide a flow rate restraining top, hardly blocked up, even if foreign matter such as rust flows and comes, by restraining a maximum water quantity so that a water quantity of a certain degree or more does not flow out, even if a fau...  
JP2005030561
To effectively damp vibration of a valve such as fluid vibration by simply constructing a device to be easily mounted on a valve.A mounting table 65 with a vibration damping mechanism 71 for damping vibration in one direction is mounted ...  
JP2005023741
To solve problems wherein natural water discharge feeling before installing a flow rate adjusting device is lost and discharge water scatters into the surroundings because flow becomes turbulent and discharge water becomes unruly and sca...  
JP3638475
To provide a valve applicable to a fluid containing slurry and foreign matter with a simple structure, usable at a high flow speed, and having the structure without partly applying unreasonable stress, while a noise is suppressed by decr...  
JP3636880
To check the occurrence of any noise and pressure fluctuations due to getting valve constituent parts vibrated by a flow of fluid passing through a valve part in time of operation of this relief valve. A relief valve 70, relieving fluid ...  
JP3637239
To prevent a rapid closing of a single axle pressure-reducing valve owing to a rapid pressure-rising on the secondary side by providing a cylindrical portion inserted into a secondary side passage on the rear end side of a cylindrical bo...  

Matches 751 - 800 out of 1,865