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JP2002202071A |
To increase feeding liquid quantity in case of low pressure in a pressure side of a first gear feed pump and prevent feeding liquid quantity from increasing more in case of sufficiently high pressure in the same.A gear feed pump 60 is ar...
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JP2002195165A |
To provide a variable displacement pump capable of reducing both of driving horsepower and slide loss horsepower of the variable displacement pump by a simple structure.A main pump 11 rotates and drives a main pump rotor 22 to suck worki...
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JP2002195168A |
To provide a trochoid pump capable of preventing the reduction of pump efficiency while suppressing the occurrence of a vapor lock phenomenon based on the rise of fuel temperature.This trochoid pump is constituted such that a deaeration ...
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JP2002161870A |
To provide a multiple gear pump capable of performing running-in operation independent per pump and a shipment test.In this multiple gear pump, individual pumps A1, A2 and A3 are tightened by four pump tightening bolts separate from a th...
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JP2002119839A |
To provide a method of easily mixing reaction components and a metering and mixing device having a simple structure and made inexpensive in the continuous operation.At least one component is passed through a tube pump as a forcibly feed ...
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JP2002120552A |
To provide a power generating and moving system simplifying a control structure and reducing the power consumption.An engine Eg is operatively connected to a motor generator MG and a compressor CP via a power transmission mechanism PT. I...
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JP2002070757A |
To provide a gear pump wherein the discharge capacity is made variable according to a load.In a casing, a driving gear and two driven gears biting each other to the driving gear are accommodated, and a main body 10 (double gear pump) of ...
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JP2002039077A |
To provide a structure where wave-like blade pumps are multiplied by overlapping in tandem (as skewered).An overlapping width is decreased by forming more than one pumping chamber 5 with overlapping more than one common casing 23 having ...
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JP2002018853A |
To provide a new method for transporting a flowable reaction component of a reaction mixture.Gear pumps (3, 4, 5) connected in series from a storage container to a high pressure mixing head are used to transport the flowable reaction com...
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JP2001355579A |
To improve an oil pumping ability even when widths between rotor housings and rotors are wide.A trochoidal oil pump 47 is driven by an engine 6, feeds lubricating oil to the engine 6, and recovers excessive lubricating oil of the engine ...
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JP2001328450A |
To reduce the number of part items and assembling man-hours by disusing a pump casing and a shim in a hydraulic coupling device of a power transmission for a four-wheel drive vehicle.A pair of left and right first side covers 30L, 30R, a...
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JP2001521097A |
A roller vane motor for downhole drilling comprises a housing (1) and a rotor (2). The housing contains wing deflector cams (5) that divide the space between housing and rotor into chambers (8a, b). The rotor is equipped with cylindrical...
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JP2001295774A |
To provide a structure of pluralizing rotors of a wave blade pump. A plurality of wave blade rotors 5, 6 are disposed on one rotary shaft 1, a partition plate 7 is disposed between rotors so as to form a plurality of pump chambers 8, 9. ...
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JP3221672B2 |
A pumping apparatus for delivering liquid at a high pressure, in particular for use in liquid chromatography, comprises two pistons (10, 20) which reciprocate in pump chambers (7,18) , respectively. The output of the first pump chamber (...
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JP3218231B2 |
To loosen pulsation by respectively regulation stroke of pistons, and arranging control means for regulating a liquid rate respectively discharged by pistons at the time of a pump cycle. Two sapphire pistons 10, 20 of two pump units are ...
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JP3213465B2 |
PURPOSE: To seal a control circuit unit by arranging an inner cylinder which determins a fuel passage in a housing, enclosing its one end by a holder plate, and forming resin sealing parts around the inner cylinder and the holder plate t...
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JP2001516414A |
An apparatus for providing pressurized liquid for operating a hydraulically operated device of an airplane comprises a pump for pumping liquid, a high speed flood cooled permanent magnetic motor for driving the pump, a drive connecting t...
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JP2001234872A |
To prevent vibration caused by resonance at an oil feeder with a plurality of pumps and their driving motors of the same specifications installed on an oil tank.The main oil pump driving motor 5 and the auxiliary oil pump driving motor 6...
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JP2001173574A |
To provide a double-gear pump capable of further reducing pressure pulsation.This double-gear pump of a low pulsation type is provided with two sets of a pair of meshing gears 2-5, and the gear meshing phase in each set is shifted. In th...
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JP2001159393A |
To suppress the occurrence of a state resulting in an operating failure by the sticking of dried-solidified liquid even in the case of delivering liquid solidified by drying.Water soap in a tank is sucked from a suction port 60 of a gear...
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JP2001140769A |
To provide an eccentric screw pump with a single shaft suitable for long distance transfer and capable of preventing occurrence of a water hammer phenomenon by gradually reducing the speed of a rotor for stopping so as not to suddenly st...
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JP3120288B2 |
A dual capacity pump having at least two gear pump stages with a common fluid inlet passage (30), each pump stage having a discharge port (34,36), the discharge port for one stage communicating with a fluid pressure load through a flow d...
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JP3107646B2 |
PURPOSE: To reduce the power needed, reduce the loss due to friction and reduce the structural size. CONSTITUTION: A drive wheel 12 is arranged on a crankshaft 20 protruding from an internal combustion engine 8. The rotation of the drive...
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JP2000265975A |
To achieve miniaturization, reduction of cost and improvement of efficiency, in a gear pump having externally provided teeth to be meshed with each other to form a pump part and a driven part, a fuel supplying device, and a gear motor. I...
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JP2000220581A |
To reduce costs by reducing the number of part items for a hydraulic pump incorporating a relief valve and the number of assembling man-hour. A pump housing 2 housing a pair of gears for performing a suction/discharge operation is provid...
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JP2000205148A |
To form the wall surface of a pump chamber with high precision by combining a plurality of block pieces about the axial line of a rotating shaft with a plurality of bulkheads for partitioning adjacent pump chambers to constitute a rotor ...
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JP2000192890A |
To prevent shortage of a discharge amount of a pump of a smaller discharge amount, even if the discharge amount is different between a front pump and a rear pump. One pump is made to have a discharge amount than that of the other pump. O...
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JP2000186679A |
To supply oil stably to both pumps in a double pump. Gear mechanisms 1, 2 are prepared by meshing teeth of a pair of gears with each other. The gear mechanisms 1, 2 are respectively housed in front and rear pump chambers independently pr...
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JP2000179467A |
To make a driving shaft thinner, to prevent an uneven abrasion of a seal member of the driving shaft and to increase a discharge quantity by a simple constitution in a gear pump.A plurality of driven gears 30 engaged with a driving gear ...
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JP2000161243A |
To improve volume efficiency by integrally manufacturing a driving shaft and at least a high pressure side external teeth gear in a multistage internal gear pump communicating a delivery port of a low pressure side pressurizing space wit...
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JP2000506587A |
PCT No. PCT/KR97/00218 Sec. 371 Date Jul. 9, 1998 Sec. 102(e) Date Jul. 9, 1998 PCT Filed Nov. 7, 1997 PCT Pub. No. WO98/21478 PCT Pub. Date May 22, 1998A twin-cylinder impeller pump is disclosed. In the above pump, the twin-cylinder run...
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JP3068887U |
A pump housing has a plurality of chambers (34,52) formed therein, and a shaft (42) journaled within, the shaft having impellers keyed thereto. Each chamber has one of the impellers (32,60) disposed therein. One of the impellers (32) is ...
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JP2000130359A |
To provide a small, light-weight and highly reliable heat carrying device having a structure suited to an air conditioning system using refrigerant. This device is provided with a hermetically sealed case 11, an external gear pump mechan...
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JP2000035107A |
To reduce the number of parts items by arranging a support pipe for supporting a pinion at a central part, receiving a differential gear shaft with this support pipe so that the differential gear shaft is supported through a bearing betw...
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JP2000009058A |
To provide a pump and brake device in which no seizure occurs in a side face of an inner rotor and the like. Because end faces of both a first cylinder end 35 facing to a first inscribed gear pump mechanism and a cylinder separator 39 ar...
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JP2602166Y2 |
In a tandem type gear pump, the housing body has an inner middle partition wall portion integral with the body and having bearing means. The housing body is formed at the opposite axial end faces thereof with a pair of recesses each shap...
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JPH11351160A |
To provide a pump suitable to miniaturize the pump parts of a fuel injection device and capable of reducing the number of parts. A pump includes a fuel injection pump part 2 and a feed pump part 3 integrally formed with the pump part 2. ...
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JPH11343984A |
To provide a small-sized tandem pump consisting of a first and a second circulation control valve in which the distance between the two valves is shortened. A first flow control valve 15 circulates part of the discharged fluid to the suc...
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JPH11334616A |
To provide a power steering unit which permits efficient radiation of heat generated in the control unit, designing heat release irrespective of ambient conditions, and replacement with a member exhibiting lower heat resistance. This pow...
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JPH11280666A |
To decrease costs by making a plurality of pump portions with fewer parts. An inner gear 27, a circular intermediate gear 28, and a circular outer gear 29 are arranged together eccentrically forming two pump portions 12, 13. When a motor...
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JP2960779B2 |
PCT No. PCT/KR95/00046 Sec. 371 Date Jan. 3, 1996 Sec. 102(e) Date Jan. 3, 1996 PCT Filed May 3, 1995 PCT Pub. No. WO95/31644 PCT Pub. Date Nov. 23, 1995A pump which is easy to manufacture and which has a high efficiency and low vibratio...
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JPH11257250A |
To secure the sufficient amount of suction flow at all times regardless of the high revolution speed of a pump, and prevent the occurrence of cavitation cause by the lack of suction flow. An inlet passage 39 opening the drain port 51 of ...
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JP2929734B2 |
There is disclosed an improved tandem pump which operates satisfactorily even at low temperatures. The pump comprises a pump housing, a first rotor, plural first vanes held by the first rotor, a second rotor, and plural second vanes held...
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JPH11193771A |
To simplify manufacturing and inspection of a motor. In a hydraulic motor 1 having a front portion 4 capable of fixing at least one gear wheel set portion 2, a supply portion 3 and an output device 15 connected with one another in the ax...
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JPH11166494A |
To provide a two-cylinder rotary compressor of high performance in which abnormal wear resulting from the slide of the tip of a wane with the periphery of a piston is suppressed, a sufficient seal width between each cylinder and a partit...
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JPH11155472A |
To provide a compact apparatus for filling of a pasty product of a practical constitution capable of avoiding the occurrence of effects of rubbing even in the case of a hard kneaded meat. This apparatus for filling of a pasty product com...
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JP2595625Y2 |
An oil pump comprises a housing, a cover, an inner gear having external teeth and a recess, and an outer gear having internal teeth engaged with the external teeth of the inner gear. The housing or the cover includes an engagement protru...
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JPH11125192A |
To industrially easily produce a sealed compressor by setting a diameter of a communicating hole, a diameter of a shaft and a diameter of a crank part so as to satisfy the specific relationship in the sealed compressor where respective r...
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JP2876350B2 |
The spinning pump is connected to a spinning pump block by symmetrically positioned fastening screws. The screws penetrate through bores in the adaptor part provided for the drive shaft. The adaptor part features a groove, which is locat...
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JPH11503505A |
(57) [Summary] Rotary pumps can be classified as positive displacement pumps and are used to transfer various fluids and generate the required pressure. The rotary pump has the following main components: That is, a pump housing (1), a pl...
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