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WO/1987/004499 |
Method and arrangement for producing a slow rise in pressure in pneumatic or hydraulic systems, particularly compressed-air diaphragm pumps. The arrangement includes a delivery channel (24, 26) having a valve (9, 10), the spindle (7) of ...
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WO/1987/004224 |
An actuating device for pipe-chamber feeders of hydraulic transport equipment comprising valves or other closing appliances having a closing element that is movable reciprocally between an open and a closed position, the improvement bein...
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WO/1987/002752 |
A control stop (12) for a flushing system (10) including a metering flush valve (14) connected to supply liquid to a toilet fixture. The control stop (12) is in series flow relation between a source of pressurized liquid and the metering...
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WO/1986/007123 |
The mixing valve includes a fixed valve plate (7) of hard material provided with passage openings (7a) communicating with two supply pipes (3), a plastic slide (9) connected to a control mechanism (18), (19), (20) and sliding against a c...
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WO/1986/005753 |
A rotary sliding valve consisting of a valve liner (1) and a rotary sliding valve (2) is fitted with control channels (3 to 8 or 16 to 18) distributed around the periphery having control edges (e.g. 27, 28) for control and distribution o...
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WO/1986/000682 |
A metering apparatus and system for controlling the administration of IV fluids having a valve housing (14, 60, 102, 202, 302, 505, 602) with a valving chamber therein. A rotatable valve body member (40, 80, 125, 220, 322, 502, 618) is p...
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WO/1985/005429 |
A straightway cock has a ball-shaped or cylindrical plug (2), which is pivotally located in a house (1). In the plug (2) there are provided a number of flow channels (9, 10), at least one of which joining a chamber (8) under the bottom o...
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WO/1985/003557 |
A valve trim cage assembly (17) for anti-cavitation control valves compises a plurality of concentrically nested, cylindrical sleeves (23, 25-29 and 41-46) with fluid flow constricting annular channels (39, 47) defined between adjacent s...
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WO/1985/002241 |
A silencer for attachment to a toilet cistern float valve or the like comprising a housing having an inlet (4A) and an outlet (5) in communication through a chamber (4) defined therein, and a fluid flow restriction or damping means (6) d...
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WO/1985/001564 |
During the sectioning of pipe systems for liquids pressure transients occur, which often overload the pipe and which can give cause to serious damages to pipes and plants. In particular pipe systems with long pipelines are sensitive to p...
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WO/1984/003922 |
A multi-position choke-valve assembly comprises: a) a valve body (15) defining an interior chamber (20) and inlet (24) and outlet (26) fluid flow ports communicable with that chamber, b) a tubular carrier (19) received in the chamber to ...
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WO/1984/003924 |
A multiposition choke valve assembly comprises: a) a valve body (15) defining an interior chamber (20) and inlet (22) and outlet (24) flow ports communicable with that chamber, b) a valve stopper sub-assembly (26) movable axially longitu...
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WO/1984/001806 |
A valve comprises an inlet chamber (a), a fluid outlet chamber (c) and a bellows chamber (b) defined by a bellows (22) communicating with the inlet chamber (a) via a bleed hole (54). One or both of a restrictor (32) and an end portion (2...
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WO/1983/003655 |
Liquid flow through a passage (9) in a body member (7) is controlled by a relatively movable poppet valve member (8). A frusto-conical first guide surface (11) on the poppet valve (8) merges smoothly with a second guide surface (12 and 1...
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WO/1982/004470 |
A device for attenuating noise of fluid in non-axisymmetric turbulent flow which comprises a conduit (34) and a plurality (12) of parallel aligned nested tubes in said conduit. The nested tubes are of varying cross-sectional size and hav...
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WO/1982/001236 |
A direct-flow valve comprises a casing consisting of hard elements connected to each other, and closing elements executed as toothed plates (10) pinched between neighbouring hard elements. Each toothed plate (10) is executed as teeth (11...
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WO/1981/001734 |
A valve for use under severe throttling conditions, includes a housing (12) with fluid inlet (14) and outlet (16) passages communicating with a chamber inside the housing. An abrasive resistant throttling tube (36) in fluid communication...
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JP2012251596 |
To provide a constant flow rate valve capable of reducing noise generated when controlling a flow rate of wastewater substantially constant.The constant flow rate valve 33 controlling the flow rate of the wastewater W5 flowing through a ...
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JP2012247060 |
To provide a check valve for a spray nozzle, which includes a valve housing having a pipe shape, a shielding body and a valve seat where the shielding body is disposed movably in a lengthwise direction of the valve housing having a pipe ...
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JP2012237365 |
To provide a pressure regulator that stably opens and closes a valve body to thereby reduce vibration or abnormal noise.The pressure regulator 10 includes: a casing 12 including a valve chamber 20 having an entrance 21 and an exit 28, an...
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JP2012233512 |
To provide a supply and discharge adjusting apparatus and a supply and discharge adjusting system that can adjust an operation pressure (exhaust pressure) in accordance with a use state.The supply and discharge adjusting apparatus 3 incl...
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JP2012233501 |
To provide a valve device that can suppress pulsation by taking measures against a generation source of the pulsation, without enlarging the physical size.At least one of a valve body 13 and a valve port end face 12b where a valve port 1...
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JP2012225469 |
To effectively control the erosion of a contact region between a valve element and a valve seat.The butterfly valve 10 has the valve element 12 turnably disposed through a valve rod 15 and the valve seat 13 with which the valve element 1...
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JP2012211654 |
To provide a check valve that is easy to be manufactured and can suppress pulsation without deteriorating durability.An internal passage 51 moving according to differential pressure in an inlet-outlet port of a housing 2 is formed in a f...
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JP2012202463 |
To provide a motor-operated valve capable of preventing the generation of noise even when a refrigerant is filled inside an inflow pipe and an outflow pipe connected to a valve chamber and a differential pressure between inflow piping an...
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JP2012197880 |
To provide a damping valve capable of producing a stable damping force in a shock absorber by suppressing the oscillation of a valve body.A damping valve 1 includes a valve hole 3 equipped with an annular valve seat 4, a valve body 5 ins...
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JP2012197739 |
To provide a fuel injection valve for applying a proper damper action to a needle part that is switchably operated for fuel injection, in the fuel injection valve of an internal combustion engine.The fuel injection valve includes: an inj...
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JP2012179165 |
To suppress a water hummer at the time of a start of a large-capacity pump by a simple, low-cost and high-reliability structure.This fluid conduit opening speed restriction valve 25 includes: a valve housing 27 connected to a fluid condu...
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JP2012180935 |
To provide a check valve of small type including a pressure relieving function, easily manufacturable at a low cost.The check valve 100 having a pressure relieving function includes a valve element 30, which is installed slidably on a va...
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JP2012177470 |
To provide a throttle valve device having a simple structure, can be manufactured at low cost, and having high silentness.The throttle valve device (1) includes a valve seat member (10) formed with a valve sheet part (10a) and a valve bo...
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JP2012172684 |
To provide a sleeve valve device which is operable even at a place where any electric power is unavailable, or any person for performing the moving operation of a valve element is no present.The sleeve valve device 1 includes a porous sl...
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JP2012172717 |
To prevent radial vibrations of a valve device, which opens and closes a valve part and adjusts opening by bringing the valve body driven by a plunger into contact with and away from a valve seat, with a simple structure, and to reduce o...
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JP2012167800 |
To provide a check valve capable of preventing the damage of a spring and generating noise by preventing the collision of the spring against a valve body or a plug.An inlet 4, a valve chamber 3, an outlet 5, and the second outlet 6 are c...
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JP2012145123 |
To increase the life of a valve box seal ring while reducing operation torque and holding a water shutoff property when the valve box seal ring is pressed against disk tail parts.A butterfly valve having a water filling function includes...
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JP2012127505 |
To provide a movable throttle valve capable of preventing an annular gap from being clogged with dusts in operation fluid while being simple construction.The movable throttle valve 5 used in a fluid pressure circuit 10 has a holding cond...
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JP2012107698 |
To provide a structure for restraining noise and vibration of an inside component caused by external impact, in a gas governor valve having a primary pressure chamber and a secondary pressure chamber.This gas governor includes a casing 1...
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JP2012102779 |
To provide a check valve configured to allow an orifice for controlling flow rate (pressure) of fluid to be easily added or replaced.In the check valve, a valve element 50 having a rubber-made valve seat 80 is slidably arranged in a valv...
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JP2012092964 |
To provide a screen nozzle that can change flow property.A variable flow control nozzle 50 has a head 52, a tube 54, and a valve 56. The head is disposed adjacent an opening 22 and has a screen 60 for passage of fluid flow into and out o...
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JP2012087906 |
To provide a shut-off valve capable of preventing a water hammer, and capable of shortening time required for closing the valve.This shut-off valve includes a valve element 11 normally opening for opening-closing a communicating port 9 o...
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JP2012087916 |
To provide a cylinder valve usable in common for any of a faucet of a form of discharging water by rotating a handle leftward and a faucet of a form of discharging the water by rotating the handle rightward, and capable of excellently pr...
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JP2012082896 |
To reduce the noise by stabilizing a flow of a refrigerant with a valve port in a motor-operated valve for controlling a flow rate of the refrigerant by opening/closing the valve port with a needle valve.A valve seat part 1 is formed wit...
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JP2012082932 |
To provide a butterfly valve that reduces unbalance of pressure in both flow passages on an orifice side and a nozzle side even immediately after the start of opening a valve, while preventing large resistance in an orifice when valve op...
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JP2012082936 |
To provide a butterfly valve with water filling function for supplying fluid during water filling to a pipe.The butterfly valve with water filling function includes a valve seal part 20 formed on the inner periphery of a valve box 1 and ...
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JP2012067964 |
To reduce noise to be generated when a refrigerant passes through a refrigerant inlet in a liquid single phase and the refrigerant passes through a refrigerant outlet in the liquid single phase, in an expansion valve disposed in a refrig...
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JP2012067791 |
To relieve a water hammer phenomenon by stably controlling a flow rate.An expansion unit EU having an operation chamber 33 communicating with a back pressure chamber 27 of a main valve 20, is interposed between a valve casing 16 having t...
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JP2012052617 |
To provide a check valve for mitigating an ill effect of water hammer.In the check valve 100, when the inflow of fluid is stopped, a valve energizing mechanism 140 energizes an inflow shutoff valve 120 to immediately shut off an inflow p...
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JP2012052636 |
To prevent the occurrence of noises while securing high opening/closing responsiveness of a check valve.A valve seat 63 and a stopper 65 of the check valve 48 are formed of resin, and a check ball 64 is formed of carbon or resin and so t...
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JP2012047213 |
To reduce noise by restraining vibration or the like of a secondary joint pipe, by stabilizing a flow of a refrigerant in a valve port, in a motor-operated valve for controlling a flow rate of the refrigerant by opening-closing the valve...
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JP2012041980 |
To provide a direct mounting type solenoid valve that suppresses noise due to vibration and resonance of an output port.The direct mounting type solenoid valve has a solenoid vale body, including a housing 11 for forming a passage 11a an...
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JP2012042056 |
To provide an intermediate valve for operation air capable of reliably preventing the occurrence of a water hammer phenomenon by controlling the operation air of a single-acting air-operated valve.The intermediate valve for operation air...
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