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JPH0680873U |
[Purpose] Provided is a rod-fixed pump capable of reducing pulsation by always appropriately sucking and discharging regardless of the properties of the fluid. [Constitution] A rod-fixed pump 1 that sucks and discharges fluid, has a chec...
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JPH06307331A |
PURPOSE: To effectively reduce random pulsation in a wide range to be generated from a plunger pump. CONSTITUTION: A hydraulic pulsation reducing device is composed of a gear 6 in such a construction that sawteeth cogs are formed at the ...
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JPH06299955A |
PURPOSE: To provide a series-connection piston pump, which does no damage to food, has good conveying performance, no failure, and a long useful life, and costs low, in a piston pump, which conveys fragile food such as fish with liquid s...
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JPH06294375A |
PURPOSE: To equalize responsiveness of a piston regardless of the piston displacement direction in absorbing of pulse flow rate and also to secure linearity of the displacement of laminated piezo elements by making a piston into a double...
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JPH06280749A |
PURPOSE: To reduce an installation space and to reduce production of a fluctuation in a delivery amount owing to pulsation. CONSTITUTION: In a tube pump system wherein a plurality of tube pumps 1a-1d having expansion rollers 4a-4d arrang...
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JPH06280742A |
PURPOSE: To reduce a cost on structure, and to realize a buffering action against sudden pressure elevation with a slight cost increase, in a pump for a hydraulic system. CONSTITUTION: An inclined face 31 is extended from an end face, of...
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JPH06257571A |
PURPOSE: To improve the control responsive speed by connecting an input side of a damping means to a discharge side of a hydraulic pump, connecting a discharge side to an pressure sensor, and inputting the detection vibration of the pres...
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JPH06249136A |
PURPOSE: To enable feeding water without pulsation by providing a pulsation eliminating tank provided with a water reservoir and an air chamber adjacent to the water reservoir, opening a discharge passage of a pump in the air chamber, an...
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JPH06249137A |
PURPOSE: To provide an oil pressure supply source (pressure liquid supply source) which can reduce waste generation of oil pressure of a hydraulic pump, reduce manufacturing cost, be mounted in a vehicle easily, and be controlled easily....
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JPH06506999A |
In a process for the controlled metering of at least one pourable component, two force pumps (1, 2) driven by a smooth hydraulic current, each with an oscillating force component (9, 10), are used whereby the hydraulic current is divided...
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JPH06213141A |
PURPOSE: To reduce the pressure fluctuation of a ultrahigh-pressure water pump, miniaturize the whole structure of a cylinder, reduce the number of check valves, and reduce the capacity of an accumulator. CONSTITUTION: A plunger 6 is rec...
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JPH0627161Y2 |
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JPH06179015A |
PURPOSE: To prevent a water hammer phenomenon from being generated when a two stage booster type high pressure water supply system pump is started. CONSTITUTION: A pressure switch 7 and an automatic shielding valve 3 are provided on a ma...
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JPH06173860A |
PURPOSE: To supply fluid at high speed in a non-pulsating manner by enabling the speed of a piston during the pump-up from the filling stroke to the emptying stroke to be above the speed during the emptying stroke. CONSTITUTION: A fluid ...
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JPH06167273A |
PURPOSE: To reduce liquid-borne noise from a hydraulic pump by respectively providing a hydraulic pump for moving fluid from one location to another, and a gas barrier between the pump and one of the locations without direct communicatio...
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JPH0643275U |
[Purpose] It is an object of the present invention to provide a piston pump capable of mitigating a sudden pressure change at bottom dead center and top dead center and suppressing the generation of noise and pulsation caused by the sudd...
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JPH06158862A |
PURPOSE: To reduce pulsating stress by conveying, and to lighten applied load to a distributor mast by installing a tubular concrete storage section between a connecting deliver conduit and a concrete conveying conduit connected to a pum...
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JPH0640383U |
[Purpose] By lengthening the interval of air replenishment in the air chamber of the reciprocating pump, labor can be saved by reducing the labor of air replenishment, and stable operation and stable operation can be maintained for a lon...
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JPH06147102A |
PURPOSE: To remove pulsation by preventing the opening/closing of suction/ discharge valves from being delayed, in the case of a multi-connection type reciprocation pump (plunger, diaphragm, bellows or the like) in which plunger or the l...
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JPH0637577U |
[Purpose] Obtain a reciprocating pump using a non-circular gear mechanism that can stabilize the pulsation-free state, set the pump stroke length sufficiently long, and make the overall configuration simple and compact. [Constitution] Th...
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JPH0637873B2 |
A fluid pump mechanism for delivering a smooth output of fluids to a system utilizing at least one piston in a chamber reciprocative therewithin. The piston has strokes that fill and empty the chamber in conjunction with the action of va...
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JPH06117359A |
PURPOSE: To obtain a driving mechanism for a nonpulsative pump which can increase an operation stroke without enlarging a device. CONSTITUTION: A driving mechanism is composed of two inner peripheral surface cylindrical cams 30a, 30b, tw...
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JPH0615162Y2 |
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JPH06101794A |
PURPOSE: To provide a fluid pressure pulsation absorbing device which possesses the high reducing effect for the pressure pulsation and durability for a long period. CONSTITUTION: A fluid pressure pulsation absorbing device is equipped w...
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JPH0693973A |
PURPOSE: To simplify regulation of a delivery amount of a diaphragm pump by disposing a diaphragm for buffering, which is designed to buffer the pressure impact of a delivery medium, to a pump head and mounting a buffering device, formed...
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JPH0693961A |
PURPOSE: To improve the cooling of an electric motor using fluid cooling and reduce fluid pressure pulsation. CONSTITUTION: An electric motor comprises a housing 10, a stator 11 and a rotor 12. A hydraulic pump comprises a cylinder block...
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JPH0618673U |
[Purpose] The wavelength band for reducing pulsation of hydraulic pumps is wide, and the cost can be reduced. [Constitution] The accumulator 3 is directly attached to the block 2 provided on the discharge side of the hydraulic pump 1 so ...
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JPH0617669B2 |
A new mechanism for pulsation damping in a reciprocating diaphragm pump system is disclosed which is especially suitable for solvent delivery in modern high pressure liquid chromatography requiring a wide range of solvent flow rates and ...
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JPH0615028B2 |
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JPH068398Y2 |
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JPH0642454A |
PURPOSE: To uniformly deliver under pressure a viscous material without interruption and at a high speed with a simple and low-cost structure by providing means for setting suitable effects and shapes of a control slide portion and a plu...
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JPH0633871A |
PURPOSE: To obtain a pulsation pressure absorbing device for effectively absorbing the pulsation pressure within a wide frequency range by the simple control for a variable throttle, securing the compactness of a device. CONSTITUTION: In...
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JPH0626449A |
PURPOSE: To easily obtain the displacement amount which is given to the pulsation pressure generating means with a simple and inexpensive structure, and absorb pulsation pressure efficiently by measuring directly the amount of non- stead...
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JPH0626448A |
PURPOSE: To effectively absorb the pulsation pressure of wide-ranged frequency with a small space and at a low cost by incorporating a Helmholtz resonator which is a passive pulsation pressure generating means, into an active pulsation p...
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JPH0617752A |
PURPOSE: To provide a pulsation reducing device which saves the manpower and performs rapid and accurate regulation by a method wherein when a fluctuation in a liquid pressure exceeds a specified range during suppression of pulsation phe...
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JPH061780U |
[Purpose] Provided is a hydraulic pulsation suppressing device capable of reliably suppressing hydraulic pulsation even if the operating speed of the hydraulic pump changes. [Constitution] The hydraulic pulsation suppressing device 20 in...
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JPH05321815A |
PURPOSE: To control discharge pressure pulsation to the minimum at all times even under various operation conditions of low noise and low oscillation. CONSTITUTION: Control ports 20a, 20b are opened above a valve plate 2 to face the posi...
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JPH05296142A |
PURPOSE: To improve the noise-vibration performance of a plunger piston pump. CONSTITUTION: A plunger piston 2 performing its stroke by a cam 4 opens a fluid inlet port 2a in the vicinity of the suction stroke end, and sucks fluid into a...
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JPH05507780A |
An apparatus for delivering measured liquid volumes comprises a dosing piston pump (13) having an outlet (53/54) for the measured liquid volumes, and a liquid accumulating device (12) including an accumulator chamber (17) having an inlet...
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JPH0578977U |
[Purpose] Prevent erosion without reducing volumetric efficiency. [Constitution] A valve plate 6 forming a suction port 11 and a discharge port 10 and a cylinder block 2 that slides in contact with the valve plate 6 and rotates are provi...
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JPH05263756A |
PURPOSE: To suppress an operating fluid discharged to a large diameter part so as to prevent the generation of discharge pulsation, fluctuating pressure, operating fluid contraflow and surge pressure, and the damage of a pump by forming ...
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JPH05240161A |
PURPOSE: To obtain a double membrane pump having a smallest possible surface area contacting the product so as to cause least possible corrosion for the transfer of the highly purified product by sealing two product chambers from compres...
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JPH0566275U |
[Purpose] Provided is a check valve mechanism of a plunger pump that can surely prevent cavitation that causes abnormal noise and the like. [Constitution] A valve housing 2 having a storage hole 5 for the check valve 4 that communicates ...
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JPH0564475U |
[Purpose] The purpose is to reduce the pulsation of the flood control in the hydraulic circuit and reduce the noise. [Constitution] A double gear motor 10 is installed near the outlet of the pump 8 so that the oil discharged from the pum...
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JPH05195947A |
PURPOSE: To prevent cavitation in an oil pump. CONSTITUTION: A flow control device 8 interposed between the discharge passage 7 of an oil pump 2 and an engine 1 is provided with a main passage 21 for communicating the discharge passage 7...
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JPH05180153A |
PURPOSE: To improve efficiency of a radial piston pump by preventing fluctuations of the radial piston pump and noises generated by the fluctuations, and further improving power output of a piston stroke and pressure formation. CONSTITUT...
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JPH05180159A |
PURPOSE: To reduce a sudden change in pressure when a pump is started and stopped. CONSTITUTION: When a pump driving motor is started, it is gradually accelerated by a voltage reduction starter. When the motor is stopped, it is gradually...
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JPH0547461U |
[Purpose] Provided is a pulsation absorbing device capable of absorbing the pulsation of hydraulic oil discharged from a pump with good responsiveness and having a large pulsation absorbing effect. [Constitution] A first chamber 14 parti...
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JPH05141365A |
PURPOSE: To provide a minimized hydropneumatic arrangement for automatically controlling the actuating and deactivating of an electric motor with least air leakage and increased adjustment volume by integrating a flow detector having a s...
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JPH0532774U |
[Purpose] Shorten the length dimension along the 8 axis directions of the pulsation absorber 19 and the rotation axis of the pump. Simplify the structure by reducing the number of pump parts. [Constitution] A gap 25 is provided between t...
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