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Matches 851 - 900 out of 1,839

Document Document Title
JP2003202084
To provide a diaphragm type cut-off valve which prevents water hammer at the time of closing the valve and is applicable to a flushing valve device of a cistern.In the diaphragm type cut-off valve with a rubber diaphragm valve element 16...  
JP2003191852
To simplify a structure, reduce the number of parts and assembling man-hours, reduce manufacturing costs, and improve sharpness of the power steering, in a damper valve of a hydraulic power steering device of a vehicle.In this hydraulic ...  
JP2003194239
To provide a butterfly valve capable of suppressing noises and vibrations by dispersing the cavitation and suppressing its growth to lessen and achieving a prolonged lifetime by preventing the valve body base material and/or valve box ba...  
JP2003185034
To surely prevent cavitation and hunching by coping with and any operating conditions and to simply perform adjusting work in a large and small two-type automatic pressure regulating valve.A large diameter valve element 5 contacts and se...  
JP2003172463
To provide a control valve which has excellent control characteristic and cavitation characteristic and reliably removes foreign matters and eliminates any clogging by a simple operation without any complicated work even when clogging oc...  
JP2003166659
To provide a relief valve which generates less vibration when feeding liquid and provides smooth and stable opening/closing operation thereof by solving a problem with the conventional relief valve supported by a diaphragm in which press...  
JP3440074
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 ...  
JP2003161381
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...  
JP2003159347
To adjust an opening speed and a closing speed of an open valve separately not to cause a water-hammer action.The open valve 1C of a type which opens a valve body 9 by pressuring a cylinder room 12 has piping 14 connected to the cylinder...  
JP2003156269
To reduce the flow sounds of a cooling medium in a region where a solenoid valve has a small opening.The solenoid valve has a valve seat 61 and its rod valve element 4 is energized toward the valve seat by electromagnetic force. The valv...  
JP2003148263
To provide a fuel pressure control valve capable of effectively reducing the generation of noise with a simple structure.This fuel pressure control valve contains a housing 10, a fuel storage chamber 16 containing a valve seat member 18,...  
JP2003139428
To provide a Stirling engine that reduces energy loss and has a high refrigerating capacity from a low amplitude to a high amplitude without deteriorating a piston spring by varying a gas quantity returned to a compression chamber from o...  
JP2003120829
To provide a butterfly valve with a constant-flow flooding function capable of providing the water flow of a constant flow rate with a small opening.This butterfly valve is composed of a valve casing sealing ring 14 annularly mounted alo...  
JP2003120536
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 ...  
JP2003106474
To provide an open valve capable of adjusting either one of an opening speed and a closing speed of a valve element irrelevant to the other, for example, capable of adjusting the opening speed alone without lowering the closing speed of ...  
JP3414005
PURPOSE: To obtain a preventing device of water hammer phenomenon caused by on-off actions of a solenoid valve mounted on a bathtub hot-water automatic supply pipe of a hot-water supply apparatus where a general purpose hot-water supply ...  
JP2003097732
To provide a butterfly valve capable of easily controlling a flow rate and pressure by making flow with a quantity of fluid corresponding to an opening angle of a valve element of a butterfly valve as closely as possible fully preventing...  
JP2003097754
To provide a motor operated valve capable of effectively preventing ragged noises by reducing to the utmost fluid sounds generated upon a fluid passing through an orifice formed between a valve element and an outflow hole through an infl...  
JP2003090458
To control cavitation trouble such as erosion by a means excluding charging.A contour edge part of a valve element 14 or a contour edge part of a valve seat 18 is formed on a streamline shape same surface expanding over whole length in a...  
JP3410804
PURPOSE: To prevent the occurrence of a seating sound at the time of closing a valve by fitting a throttle mechanism for restricting an amount of fluid leaking from a cylinder after the closure of a fluid feed port therefor with a contro...  
JP3411599
PURPOSE: To dispense with a coil spring for energizing a moving member, eliminate a resonance phenomenon of a spring and abrasion of a sliding surface, and enhance reliability by providing a permanent magnet at the end of the moving memb...  
JP2003083641
To obtain a restricting device and a flow control device which enable setting of a different amount of restriction for a refrigerant flow in normal and reverse directions and to obtain air conditioning equipment which can conduct heating...  
JP3407565
To reduce the fluid force by making the flowing-out angle of a fluid which flows from a valve chest to a flowing-out passage in a large size. This spool valve is composed to communicate a flowing-in passage 3 and a flowing-out passage 4 ...  
JP2003074725
To suppress whistling sound caused by the vibration of a vane pump in a relief valve in a hydraulic system for a vehicle.This relief valve is provided with a valve housing with a valve hole 21a bored along an axis; a valve seat member fi...  
JP2003074719
To provide a valve element for a butterfly valve that can reduce unbalance torque at the medium opening of the valve without impairing the advantage of a swirling flow inducing means (a plate-like projecting part).This valve element for ...  
JP2003072670
To provide an improved electrical control unit of a motor-driven derailleur for a bicycle superior in ergonomics, simple in structure, and more functional in comparison with a device by prior art.The electrical control unit is composed o...  
JP3406357
PURPOSE: To provide a cage type low noise valve where an orifice at each stage uniformly bears a reduced pressure load so as to realize effective attenuation and enhance a noise reducing function. CONSTITUTION: In a cage type low noise v...  
JP2003067056
To prevent trouble such as noise due to a fine opening state.A sheet structure is characterized by that the valve seat surface angle of a pressure reducing valve 2 is set to about 75° and a seating part 9 of a valve body 6 in contact wi...  
JP2003065634
To reduce a vibratory foreign sound of a valve element without additionally providing parts anew.First and second hole sections 40a, 40b are formed such that the direction A of a central line of the second hole section 40a is inclined wi...  
JP3401875
PURPOSE: To provide a check valve which is incorporated in a two way valve, does not cause fine vibration within a specified flow range, and prevent noise due to vibration by simple structure. CONSTITUTION: In a check valve 80, when a fl...  
JP2003049967
To provide a biting preventing slide bearing for a slow closing check valve wherein a shaft of the slow closing valve and the bearing is not fixed even when foreign matters come in, and the work for removing the foreign matters is not re...  
JP2003042337
To securely restrict a collision of a spool valve with a valve body in a fluid pressure control device provided with the spool valve. The spool valve 4 is arranged in a cylinder of the valve body of the fluid pressure control device. A c...  
JP3395731
To eliminate the generation of noise when opening a valve. This check valve is provided with a valve body 1 having a valve seat part 1a, a valve element 2 arranged inside of the valve body 1 freely to be slid and having a valve part 2a f...  
JP3393291
To make a valve smooth operation, and prevent generation of chattering. In a safety valve providing a valve seat 5 in an outlet of a pressure introducing hole 4 of a main unit 1, connecting a spring case 3 to the main unit 1, insert moun...  
JP3394661
To sufficiently reduce a fluid noise even when a large circulating flow is generated in a valve element bottom part by arranging an annular projection projecting in the moving direction of a valve element in a circumferential outer edge ...  
JP3394928
To provide a check valve causing no noise due to the vibration. Generation of vibration when opening a valve can be prevented by giving the moving resistance by the work of an air damper to a valve element. Considering this point of a ch...  
JP2003028312
To provided a valve element for a butterfly valve capable of minimizing the damage of piping in a downstream side, even when bubbles by cavitationis generated at the time of passing of fluid.A platy swirl flow inducing means 15 (15a to 1...  
JP2003014148
To provide a relief valve which allows even a hydraulic device obtaining the rotation power from a hydraulic motor to continuously operate over several nights and days by improving a valve structure so as not to generate frictional heati...  
JP3388248
PURPOSE: To make the resistance mechanism of a water-hammer preventing valve closing portion inoperative when an excessive operating force is applied so as to prevent a valve mechanism from being broken by reducing the breaking stress of...  
JP2003004153
To prevent the failure, degradation, and the like of a check valve, a flowing water detector, piping, and the like based on water hammering at the start and stop of a pump.A valve element 15a for opening/closing a center opening part 16a...  
JP2003003528
To provide a compact and inexpensive composite flow regulating valve that is suitable to mount to a water pipe, in which an amount of water passing through extremely fluctuates, as a flow regulating valve which is provided to a water tra...  
JP2003004160
To suppress the generation of noise in the passing of a fluid such as a refrigerant in a motor-operated valve.This motor-operated valve is provided with a valve body 80 for adjusting the passing flow by a valve element 50 contacting and ...  
JP2003003911
To restrict columnar resonance generated in negative pressure air current passing piping 15a due to resonance of a solenoid 24 of a negative pressure generating valve device with the piping 15a when an exhaust recirculation valve part 8 ...  
JP2002357283
To solve the problem that the structure of conventional water hammer preventing devices is complicated since it is composed of bellows made of rubber members, thereby affecting the increase in the size and cost of the device. When an inc...  
JP3378335
PURPOSE: To restrain a valve from generating noise during its operation by deflectively-opening a tongue part in a condition where twisting is applied by the flowing action of the air, and lowering it to return to the closing position of...  
JP2002349737
To provide an air valve that can prevent a malfunction of a valve element by suppressing an adverse effect on a float of an inflow of bubbles in a valve casing and suppressing generation of splash and dust scatter. The air valve comprise...  
JP2002349721
To provide a structurally simple butterfly valve that permits determination of a flow rate when a small quantity of water (fluid) is caused to flow, for example, in a watering operation for a downstream side of piping. An outer circumfer...  
JP2002349735
To provide an air valve that can prevent external leakage of sanitary sewage and the like by reducing the frequency of opening and closing of a valve element and suppressing splash and dust scatter while maintaining an appreciable exhaus...  
JP2002349439
To reduce vibration and noise generated by bump contact between a valve and a valve plate of a compressor. A suction valve allowing a refrigerant of low pressure to flow in; a valve plate having a suction port connected to the suction va...  
JP2002333080
To provide a flowing water detecting device capable of preventing the failure, malfunction and the like on the basis of water hammer in driving a pump and the like.An opening/closing valve 18 for opening and closing a flowing water passa...  

Matches 851 - 900 out of 1,839