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WO/1989/011341A1 |
The invention concerns a method for continuous spraying of liquid- and paste-like polycomponent stuffs like paints and rubber- both plastic masses, preferably cellular plastics, like polyurethan and corresponding and most preferably poly...
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WO/1985/004463A1 |
In order to absorb disturbing pressure pulsations in a high pressure hydraulic system, the transport pipe (15) between source (10) and consumer is cut in at least one place and a damper (16) is mounted. The damper comprises at least one ...
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WO/1985/001993A1 |
A metering pump comprises a drive unit (1) and a pump head (11), into and from which fluid which is to be metered can be sucked from an input line via a first non-return valve (17) or can be expelled to an output line (20) via a second n...
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WO/1984/000797A1 |
Method and means of absorbing pressure shocks using a gas in which a series of pads (1) containing a gas are stacked one on another, the stack of pads being confined in a two part member (9-10) such as a cage adapted to be contained in a...
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WO/1983/001983A1 |
A pump system, particularly suitable for pumping wet mixes and slurries, achieves an output of pumped material substantially free from pulsations or fluctuations by control movement of power pistons (12A, 12B) within power cylinders (10A...
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WO/1982/001040A1 |
An apparatus for a method of pumping hot, erosive slurry of coal solids in a coal derived, water immiscible liquid to higher pressure involves the use of a motive fluid which is miscible with the liquid of the slurry. The apparatus inclu...
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WO/1981/002769A1 |
A pneumohydropumping installation comprises a two-way pneumohydraulic booster (2) the pneumatic chambers of which are connected with the outlets of a power pneumatic distributor. The hydraulic chambers of the booster (2) are connected wi...
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JP7403302B2 |
To provide a pump device which attenuates pulsation of a brake fluid generated when a pump is driven.A pump device includes a pulsation reduction part (80) that is provided in a base (51) and reduces pulsation of a brake fluid discharged...
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JP2023106061A |
To suppress impact pressure occurring when switching from suction to discharge of transfer fluid, in a bellows pump device that reduces pulsation on a discharge side.A bellows pump device 1 comprises a control unit 6 that controls the op...
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JP7312747B2 |
The present invention improves the durability of a diaphragm in a configuration where a suction valve provided with the diaphragm is provided. This vehicle brake hydraulic pressure control device is provided with a suction valve (6) disp...
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JP7154770B2 |
A water injection apparatus for a water jet loom, includes a weft insertion nozzle for weft insertion of a weft yarn by injection water, a weft insertion pump pumping water into the weft insertion nozzle, a water storage tank storing wat...
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JP7119715B2 |
To obtain a fluid pump which is compact in a size, and suppressed in the pulsation of fluid.A fluid pump comprises: three or more capacity chambers B for sucking and discharging fluids; a mover D relatively moving together with the capac...
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JP7015467B2 |
To provide a compact fluid pump having less vibrations and noises.A fluid pump S includes: a cylinder 2 having at least one opening 21 for supply/discharge of fluid W; a piston 1 reciprocating while forming a fluid chamber 22 inside the ...
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JP6952636B2 |
A non-pulsating pump comprises a plurality of reciprocating pumps, each of them having: a hydraulic chamber (22,42) into which a portion of a reciprocating plunger (26,46) is inserted, and a fluid chamber (25,45) separated from the hydra...
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JP6910959B2 |
A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber wit...
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JP2021017071A |
To provide a pump device in which pulsation of brake liquid generated when driving a pump is damped.A pump device is provided, comprising a pulsation reduction unit (80) provided in a base body (51) and reducing pulsation of brake liquid...
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JP6807931B2 |
An active surge chamber for use in a paint supply system comprising a paint channel, a fluid chamber connected to a pressurised fluid supply, a diaphragm, a spring, and means responsive to movement of the diaphragm for effecting connecti...
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JP2020203670A |
To provide a liquid pressure unit which is constituted to be compact and inexpensive, and which comprises a buffer mechanism for buffering pressure pulsation of a pressure generator that can be easily mounted.Well-known liquid pressure u...
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JP2020083171A |
To provide a hydraulic control unit equipped with a pump for increasing pressure of brake fluid.A hydraulic control unit includes: a discharge flow channel through which brake fluid whose pressure is increased by a pump is discharged; a ...
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JP2020505592A |
The present disclosure generally relates to methods and devices for providing a pressurized solvent stream in a chromatography system. In one embodiment, at least one conversion valve is in fluid communication with at least one solvent s...
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JP6616765B2 |
A reciprocating pump includes a first manifold which includes a pump chamber, a second manifold which is connected to the first manifold, and a seal which is disposed inside the second manifold and comes into slidable contact with a plun...
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JP2019173589A |
To provide a fluid pump for, even when an opening part to a pressurizing chamber of a suction flow path has an angle to the center axis of a plunger, hardly causing cavitation between the outer peripheral face of the plunger and the inne...
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JP6586681B2 |
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JP2019157753A |
To provide a pump pulsation suppression device that can suppress pulsation of a pump.A pump pulsation suppression device includes: main piping provided with a slit in a circumferential direction, through which liquid pumped up by a pump ...
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JP6502859B2 |
An improved heat engine that includes an organic refrigerant exhibiting a boiling point below −35° C.; a heat source having a temperature of less than 82° C.; a heat sink; a sealed, closed-loop path for the organic refrigerant, the s...
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JP6453471B2 |
A reciprocating pump, in particular a hydraulic pump of a slip-controlled vehicle braking system, includes a step piston, a differential pressure valve, and a pump outlet. The step piston includes a piston step that delimits a stepped sp...
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JP6443564B2 |
A liquid feeding apparatus includes: a plurality of plunger pumps fluidly connected in series or in parallel between a suction flow path and a discharge flow path; and a control unit configured to control an operation of the plunger pump...
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JP6396274B2 |
This liquid supply device 10a has a first liquid flow path 21 and a second liquid flow path 22 that connect a suction port 13 and a discharge port 14. The first liquid flow path 21 is provided with a first pump 25 and the second liquid f...
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JP6374247B2 |
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JP6356230B2 |
The invention relates to a high-pressure pump (1) which serves in particular for fuel injection systems of internal combustion engines, comprising a low pressure chamber (4) configured as a power unit chamber (4) and a drive (5) which is...
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JP6313827B2 |
This non-pulsating pump (100) has a rotary cam (15) which converts a rotary motion of a servomotor (11) into a reciprocating motion and through which first and second pumps (20, 40) are driven with a phase difference of 180°, and includ...
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JP6305480B2 |
A non-pulsation pump (100) is provided with: a cam mechanism (16) that converts the rotational motion of a shared motor (11) into reciprocal motion having a prescribed phase difference; a plurality of cross heads (28, 48) that make recip...
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JP6236091B2 |
A high-pressure homogenizer, comprising: a plurality of pumping pistons (2a, 2b), for feeding a liquid to be homogenized toward a manifold (6), each piston being associated with a respective oil hydraulic cylinder; a homogenizing valve p...
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JP2017120043A |
To provide a plunger pump where the size in the axial direction of a plunger is smaller than conventional one.The plunge pump includes a body formed with a fuel suction flow path, a compression chamber, and a fuel discharge flow path, a ...
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JP6150477B2 |
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JP6119197B2 |
A fluid supply apparatus which supplies a fluid to a medical apparatus includes: a pump mechanism including a first pump capable of carrying out a intake operation of a fluid and a feeding operation of the fluid, and a second pump capabl...
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JP2016200140A |
To provide a fuel supply device capable of reducing pulsation of pressure of fuel caused by a reciprocating pump.A fuel supply device for supplying fuel into a combustion chamber of an internal combustion engine comprises: a low-pressure...
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JP2016200139A |
To provide a fuel supply device capable of inhibiting cavitation generated in a reciprocating pump.A fuel supply device for supplying fuel into a combustion chamber of an internal combustion engine comprises: a linear actuator; a recipro...
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JP6028888B2 |
To damp pulsation of a fluid discharged from a pump.The pump includes: a pump part which has a first housing provided with an inlet and an outlet, which sucks the fluid into the first housing from the inlet, and which discharges the flui...
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JP6014135B2 |
A piston pump for delivering fluids includes a cylinder, a piston that is movably mounted in the cylinder, and a pressure chamber that is arranged between an inlet valve and an outlet valve and that is closed off by a cover. The piston p...
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JP6012785B2 |
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JP5999739B2 |
A system and method are disclosed for monitoring and controlling a positive displacement pump using readings obtained from a plurality of pressure sensors. The pressure sensors may be mounted at the suction, discharge and interstage regi...
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JP2015200221A |
To provide a pump device capable of preventing generation of cavitation regardless of presence or absence of supercharge effect.A pump device includes a pump mechanism 10 discharging an oil, bypass flow channels 405, 407 connected to a r...
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JP5753859B2 |
A pump (800) for a beverage preparation machine (1) has: a pump inlet (810); a pump outlet (820); a liquid driver (815, 816) for pressurising and circulating a liquid from the pump inlet to the pump outlet; and a downstream pump conduit ...
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JP2015113970A |
To facilitate maintenance work by miniaturizing pump facilities and reducing manufacturing costs by consolidation of header pipe components in the pump facilities, and to facilitate drainage work for a downstream-side conveying pipe.Chec...
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JP5699148B2 |
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JP5688083B2 |
The present invention provides a fluid system (99) comprising a source of hydraulic fluid under pressure supplying a hydraulic fluid consumer (103) together with a valve passing fluid between said source and said fluid consumer (102). A ...
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JP2015055170A |
To provide a pump device with improved durability.A pump device 1 includes a pulsation reduction device 3 (a pulsation reduction part) which is provided in a passage at the downstream side of a discharge chamber of a pump 2 provided in a...
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JP5634119B2 |
To provide an axial piston pump that prevents pulsation regardless of whether a delivery pressure is high or low.The axial piston pump 1 includes: an inlet port; a discharge port 10; a cylinder connection hole 12 of which one is connecte...
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JP5524269B2 |
Systems and methods for compensating for pressure increase which may occur in various enclosed spaces of a pumping apparatus are disclosed. Embodiments of the present invention may compensate for pressure increases in chambers of a pumpi...
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