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JP2504001B2 |
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JPH08144941A |
PURPOSE: To provide a device having simple constitution capable of reducing pulsation, regardless of the delivery port pressure level of a cam plate type axial piston pump, and requiring small space for installation in the pump itself. C...
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JPH08144963A |
PURPOSE: To forcibly discharge bubbles formed due to cavitation. CONSTITUTION: Regarding the liquefied gas pump device where a pump chamber 40 with an inlet 34 and an outlet 52 is formed out of a piston 22 and a cylinder 21 to give a rel...
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JPH08504916A |
A solution pumping system is disclosed which is embodied as a disposable pump cassette including a self-contained positive displacement pump, and an associated pump driver including a reciprocable pump piston for driving the pump of the ...
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JPH08121394A |
PURPOSE: To reduce the occurrence of a pressure pulsation by a method wherein a plurality of holes are formed in the side wall surface of a flow passage between the vanes of a diffuser and intercommunicated through a bypass. CONSTITUTION...
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JPH08121276A |
To provide a pressure pulse damper for vehicle fuel pumps that damps output fuel pressure pulses and reduces audible noise emanating from the pumps. A pressure pulse damper 80 is a hollowed thin-wall tube pinched off and sealed at both e...
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JPH08121326A |
PURPOSE: To further shorten a time for manufacture and assembly by reducing the increased pulsation of sucking pressure, reducing size and weight, and increasing durability. CONSTITUTION: The axes of two cylinders 2 incorporating a pisto...
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JPH0861252A |
PURPOSE: To release a two-vane set of dual vanes in a V-shape during operation of a pump. CONSTITUTION: Vanes 1 and 1' contained in the slit 21 of a rotor 2 are formed in a two-vane set state. A width spreading-form recessed part 11 or r...
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JPH0861285A |
PURPOSE: To improve pump efficiency through reduction of rotation resistance, to improve durability, and to suppress the increase of size by a method wherein a thrust load is hardly exerted on a bearing to support an impeller. CONSTITUTI...
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JPH0823553B2 |
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JPH0842447A |
PURPOSE: To enable reduction of pulsation while suppressing a decrease of flow rate and thereby reduce noise caused by the pulsation. CONSTITUTION: A hydraulic piston pump has a rotor 7 which is supported on a center shaft 5 and a valve ...
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JPH0828485A |
PURPOSE: To obtain by means of a simple structure, a stable operating state wherein no cavitation is generated, by avoiding the complicate adjustment for changing the operating condition of a pump and the operation for increasing the min...
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JPH0828438A |
PURPOSE: To reduce surge pressure and oil pressure pulsation without reducing pump displacement by providing a damping chamber adjacent to a pump chamber, and communicating the damping chamber with the pump chamber through an orifice whi...
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JPH0828439A |
PURPOSE: To contrive phase interference without joining both fluids by composing a pulsation reducing device of an interference device for giving the phase interference to fluid introduced in two introducing paths through an elastic diap...
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JPH082470Y2 |
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JPH07122427B2 |
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JPH07332232A |
PURPOSE: To reduce the generation of vibration through suppression of the occurrence of pulsation during the forced feed of ready-mixed concrete. CONSTITUTION: Two concrete cylinders 2L and 2R are arranged on the front wall of a hopper 1...
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JPH07310646A |
PURPOSE: To reduce the generation of noise by a method wherein a period and vibration during resonance are made irregular. CONSTITUTION: Kidney ports 13 respectively communicated with a plurality of cylinders 12 bored in a cylinder block...
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JPH07280787A |
PURPOSE: To obtain a liquid chromatograph capable of making precise analysis by reducing the flow rate error due to the pressure rise during sample injection. CONSTITUTION: Eluate 4 is transferred to a column 9 via a switching valve 5 by...
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JPH07269460A |
PURPOSE: To reduce the generation of pressure pulsation by means of the counter action of pulsation due to a combination of two volute pumps and any interfer ence of the pulsation in a beam installed in a casing and a blade pitch of an i...
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JPH0740696Y2 |
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JPH0743772U |
[Purpose] You get an electromechanical pressure pump for fluids that is small, has a small number of parts, can be manufactured economically, and the starting friction is not higher than required for pump operation. [Constitution] Instea...
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JPH0736134Y2 |
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JPH07208329A |
PURPOSE: To provide in a simple structure a flow amount regulating valve provided with a liquid hammering preventing apparatus and capable of absorbing liquid hammering of supplied fluid and regulating the flow amount of the fluid. CONST...
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JPH0742383U |
[Purpose] It reduces the pulsation of the hydraulic pump during the delivery of pressure oil and suppresses the vibration noise of the pipeline. [Constitution] The pulse chamber 2 is directly attached to the discharge port 21 of the hydr...
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JPH0772533B2 |
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JPH07189887A |
PURPOSE: To prevent vibration, noise, etc., from occurring owing to pulsation without lowering pump efficiency. CONSTITUTION: Pressurized oil remaining in a cylinder 8 on an top dead center side is fed into a cylinder 8 on a bottom dead ...
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JPH0729256Y2 |
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JPH0729259Y2 |
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JPH0735768U |
[Purpose] It relates to a liquid pressure generator in a liquid pressurized eluent discharge device of a liquid chromatograph used in chemical analysis, and relates to a pulseless hydraulic pump that can precisely control the flow rate a...
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JPH07151735A |
PURPOSE: To provide a cavitation detector of a fluid machine wherein cavitation can be detected by separating a signal caused by the cavitation from impact noise detected with an acoustic sensor. CONSTITUTION: An acoustic sensor 2, a wav...
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JPH0756254B2 |
A vehicle hydraulic fluid system includes an engine driven pump which excites the fluid in the system downstream of the pump by imparting pressure pulses thereto at frequencies which vary as the speed of the engine, and hence, the pump v...
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JPH0726381Y2 |
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JPH0754114B2 |
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JPH0754115B2 |
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JPH0747949B2 |
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JPH07124504A |
PURPOSE: To provide a liquid supply apparatus which supplies paint to a sprayer stably at a low pressure. CONSTITUTION: An apparatus for supplying glaze F to a spray gun which sprays the glaze F is equipped with a diaphragm pump 2 which ...
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JPH0742934B2 |
Two plungers in the dual plunger pumps are selectively operated by either short-stroke cams or long-stroke cams which are disposed on a rotary drive shaft. When rotating the rotary drive shaft in one direction, the long-stroke cams are d...
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JPH0763191A |
PURPOSE: To previously detect air leakage of a pressure tank so as to reduce failures in an automatic water supply device. CONSTITUTION: When air leaks in an air chamber 7, a rubber film 6 is expanded and extended, a distortion gauge 10 ...
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JPH0718845B2 |
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JPH073027Y2 |
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JPH0727043A |
PURPOSE: To eliminate necessity for a particular means for absorbing a pulsation by extending/contracting a plurality of dampers, and the like to suppress the pulsation of delivered liquid while extending/contracting a plurality of diaph...
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JPH073279B2 |
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JPH0712056A |
PURPOSE: To charge a feed pump at the initial charging of a system, that is, at the 'exchaust charging'. CONSTITUTION: An annular grooved notch 13 is extended from a chamber 10, a hollow-body ring 14 is fit in the notch 13, the inner dia...
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JPH07715Y2 |
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JPH074360A |
PURPOSE: To eliminate the generation of pulsating flow at the time of transferring liquid by rolling a roller on an outer peripheral tube and an inner peripheral tube to obtain pumping action, and compensating for pressure reducing actio...
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JPH06511533A |
PCT No. PCT/EP93/01656 Sec. 371 Date Jul. 8, 1994 Sec. 102(e) Date Jul. 8, 1994 PCT Filed Jun. 29, 1993 PCT Pub. No. WO94/01676 PCT Pub. Date Jan. 20, 1994.A radial hydrostatic motor (radial piston machine) has a cylinder spider rotation...
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JPH06105246B2 |
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JPH06105077B2 |
An apparatus for improving the operating efficiency of a liquid-flow machine comprises a sensor for measuring the liquid throughput of the liquid-flow machine and a dosing device for controlling, in response to the measured throughput, t...
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JPH06336974A |
PURPOSE: To reduce the driving force both plungers so as to make a nonpulsating flow plunger pump compact and inexpensive by interlocking a pair of plungers in such a way as to move relatively in the intake direction utilizing the force ...
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