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JP3569956B2 |
PURPOSE: To reduce the size of the whole of a system and improve recovery of energy by a method wherein pressure liquid delivered from two gear mechanisms for driving a pump is joined and fed to the actuator side and pressure liquid fed ...
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JP2004190491A |
To reduce the manufacturing cost by using a cheap material used for a motor for a fuel pump.A lid member 21 of the fuel tank 1 is provided with a motor storing partition wall 22 whose inside is isolated by sealing oil-tightly to fuel in ...
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JP2004169914A |
To provide a hydraulic drive cook system that can be endured for the usage even under the severe environment of pitching and rolling like a boat.A hydraulic actuator that operates at least one cook and a operation gear of the hydraulic a...
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JP3533576B2 |
PURPOSE: To arrange a suction passage and a discharge passage to both pumps in end members completely related to each other by supplying fluid to both cartridges in parallel and by connecting to the both pumping operating cavities in par...
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JP3526885B2 |
PURPOSE: To provide a power control device with a simple structure and being deliverable from a plant in the form of having a built-in power throttle. CONSTITUTION: A power control device 18 for controlling in a direction of reducing a d...
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JP2004513275A |
INDUSTRIAL APPLICABILITY The present invention provides a double-port constant-capacity hydraulic pump (20) with improved efficiency by dividing a part of the flow of discharged fluid to the low-pressure side of the hydraulic system by e...
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JP3516685B2 |
A metering cap in which a first component of a flowable material is squeezed out of a cartridge (C) which can be emptied by means of a press (P). The main component flows through a feed line (8) to an outlet line (11) and, in the process...
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JP2004073968A |
To provide a transfer equipment which produces a negative pressure even when a high viscosity or high concentration principal material is transferred with a single-shaft eccentric screw pump or a volumetric pump, mixes a material difficu...
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JP2004066759A |
To stabilize generation of a negative pressure, to reduce noise when a pressing force is released, and to reduce a maximum driving load through reduction of a maximum load of each tube pump at a suction means of a recovery mechanism part...
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JP2004503724A |
The invention relates to a portable hydraulic pump unit ( 1 ) comprising a housing ( 2 ), a pump ( 5 ), a drive motor ( 6 ) for the pump ( 5 ), in particular in the form of an electric drive motor, in addition to a reservoir ( 13 ) for h...
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JP2003314465A |
To provide an oil pump apparatus having multiple or multistage oil pumps integrally constituted in a compact manner.A first rotor 1 having an external gear 1a at the outer peripheral part is provided on the innermost side, and a second r...
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JP2003314469A |
To solve problems in a conventional refrigerant pump wherein an intermediate shell is provided to ease distortion in welding, but the number of parts is increased and the tolerance of each part is accumulated to make centering of a drive...
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JP2003307186A |
To provide a pump device consisting of two hydraulic pumps having different characteristics, capable of reducing the energy loss of the whole pump device and complementing a shortage in the discharge amount of a working oil when the oper...
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JP2003286973A |
To increase a sealing width between a communication passage for joining a suction port to an oil sump space through a check valve and a vane groove part.This vane pump comprises a cam ring 31R, a right valve plate 38R and a right side fi...
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JP2003278801A |
To facilitate working of an orifice for connecting a discharge port and a suction port of a vane pump in a power transmission gear of a four-wheel drive vehicle.A side plate 23 is installed between a left vane pump interlocking with diff...
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JP2003278669A |
To provide an assembly fixture capable of easily assembling two vane pumps in a state of being precisely aligned.Bolt holes h1, h5 of a pair of first side plates 21L, 21R of two vane pumps PL, PR, bolt holes h2, h4 of a pair of cam rings...
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JP2003269345A |
To simplify the structure of a motor-driven oil pump.The oil pump 10 comprises a pump housing 11 with an oil intake port 16, an outlet port 17 and a bearing port 13a, a bearing board 13, a motor housing 12 with an opening 12a connected t...
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JP2003527519A |
This invention offers advantages and alternatives over the prior art by providing a dual port hydraulic fixed displacement pump which exhibits improved efficiency by limiting the volume of discharged fluid which is subjected to the line ...
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JP2003252218A |
To provide a mounting structure of a reservoir allowing easy detachment and attachment causing no variation in pump performance by detachment and attachment.A first thread part is formed in a tightening bolt at one of two parts on both s...
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JP2003525395A |
A hydraulic pressure transformer for the conversion of an input hydraulic power to an output hydraulic power has a cam block. The cam block has a cam opening defining a pump section and a motor section. The pump section includes at least...
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JP2003222063A |
To provide a fuel high pressure pump equipped with an integrated shutoff vane type pre-feed pump possessed of simple structure and enabling low manufacturing cost through improving a fuel high pressure pump for a combustion engine fuel i...
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JP3426559B2 |
To reduce transmission of vibration between a stator and a base. In this motor A34, a plurality of members that can elastically bend are arranged between a base (tubular stem) 108 and a stator 100, in order to reduce the transmission of ...
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JP2003166483A |
To provide a multi-stage Roots pump which prevents interference between a Roots rotor and a housing caused by thermal expansion without dropping the pump efficiency.The multi-stage Roots type pump is structured so that the ratio of the l...
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JP3414797B2 |
PURPOSE: To improve efficiency of variable control and facilitate working by forming a valve guide hole orthogonal relating to an axial line in a radial direction of an intermediate partitioning plate passing through a passage of connect...
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JP3415061B2 |
To realize high-precision hydraulic drive control as well as reduction of energy loss and electric power consumption, by controlling a required flow rate of hydraulic oil through selecting plural hydraulic pumps for a required hydraulic ...
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JP3401012B2 |
A rotating liquid ring compressor/turbine (RLRC/T), including a rotor having a core and a plurality of radially extending vanes mounted thereon, a tubular jacket having outer and inner lateral portions, eccentrically, rotationally couple...
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JP2003106125A |
To provide a pump device excellent in function and simplicity of structure of a lubricating medium of an internal combustion engine, each as a pump device for a lubricating medium of a piston reciprocation type internal combustion engine...
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JP2003106258A |
To provide a discharge valve for a compressor, comprising a valve element for reducing tensile stress by reducing pressure difference before-and- after.A discharge valve assembly 12 mounted in discharge passages 86, 88 between a discharg...
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JP3386501B2 |
PURPOSE: To eliminate a bypass passage and simplify flushing operation with a simple and small-sized structure by providing a high pressure pump of the type of a sliding vane pump, and moving the vanes to allow a through flow exceeding i...
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JP2003065252A |
To provide a gear pump in which middle points of straight lines connecting rotation centers of gears are different from centers of quadrangles formed in insert holes for fastening bolts, body elements can be commonly used to respective r...
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JP3380548B2 |
PCT No. PCT/SE92/00131 Sec. 371 Date Oct. 30, 1992 Sec. 102(e) Date Oct. 30, 1992 PCT Filed Mar. 3, 1992 PCT Pub. No. WO92/15773 PCT Pub. Date Sep. 17, 1992.A hydraulic pump in the form of an oil pump for a vehicle engine has both its pi...
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JP2003042081A |
To provide a screw compressor with a small-sized simple structure capable of reducing quantity of oil flowing out of the compressor. The screw compressor is provided with a main casing 1 including a male and a female rotor 6, a dischargi...
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JP2003035278A |
To improve the assembling property of a rotary oil pump while reducing the manufacturing cost. This rotary oil pump 1 comprises an inner rotor 12, an outer rotor 13, and a housing 15 having a bearing 15a for a shaft 11a while housing the...
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JP3372373B2 |
A unified fuel pump assembly combines a vane-type pump and a booster stage for the inlet of the vane-type pump, in a unitary structure to substantially reduce "windage" losses caused by relatively moving parts. The unified structure also...
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JP2003027912A |
To provide an integrated combination pump capable of adjusting the basic oil discharge pressure by a vane type variable displacement pump while ensuring the basic oil discharge pressure by a power pump driven by the driving force of the ...
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JP3363472B2 |
PURPOSE: To provide a double vane pump preventing the generation of cavitation in a common passage so as to enable the high-speed rotation of the pump and also preventing the lowering of pump durability at the time of increasing the rota...
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JP2002371972A |
To provide a combination pump using a driving source for only rotations of a driving shaft and having a second discharge port capable of selectively discharging fluid in addition to a first discharge port discharging the fluid following ...
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JP2002340159A |
To provide a compact and efficient oil pump device.A rotary shaft of an oil pump motor 50 is extended in both sides thereof, and a power steering oil pump 52 and an oil pump 54 for ATF are fitted to both the ends. With this structure, on...
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JP2002539377A |
The present invention provides a two-stage centrifugal compressor. The compressor of this invention has a simplified refrigerant passage structure and effectively cools its electric motor in addition to bearing parts using an existing re...
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JP3345713B2 |
A two-stage rotary vane motor for use in cryogenic refrigeration systems where the mass flow rate of the drive fluid (which may be expanding cryogen gas) varies substantially. The motor includes a housing enclosure having first and secon...
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JP2002317774A |
To provide a hydraulic system, particularly, an oil pressure changer for the hydraulic system.The oil pressure changer for controlling a hydraulic oil pressure and a flow rate for a hydraulic device comprises first and second variable fl...
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JP2002535538A |
A hydraulic machine of the gerotor type. The machine uses two gerotors which are preferably coplanar, and positioned nearly concentric to each other. This dual arrangement approximately doubles the displacement of hydraulic fluid per rev...
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JP2002535813A |
The invention relates to a hydraulic unit, especially for a hydraulic, slip-controlled brake system of a motor vehicle. Said unit comprises an electric motor, a pump unit, an electronic control unit as well as an electric plug-and-socket...
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JP2002529645A |
The invention is relative to a series of gear motors for differing output volumes with at least two gear motors. Each gear motor has at least two intermeshing displacing elements, a first displacing element and a second displacing elemen...
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JP2002529644A |
The invention is related to a series gear pump for differing output volumes with at least two gear pumps, each gear pump comprises at least two intermeshing displacing elements, a first displacing element and a second displacing element ...
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JP2002527266A |
An extrusion method and an extruder, the material to be extruded being fed with a material feeding device (1) into a radial pump unit included in the equipment. The radial pump unit comprises conical gearwheels (2) which are adjacently p...
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JP3316538B2 |
A unitary housing for a hydraulic unit such as tandem pump, having a plurality of rotating groups driven in one direction about a common axis by a source of rotary power having a pair of opposite end walls generally transverse to the com...
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JP2002221101A |
To more idealistically emulsify a diesel fuel and avoid a bad influence of water separation at the time of stopping a diesel engine, as to the improvement of the diesel engine of a fuel supply type.In an emulsifying device 15 for fuel to...
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JP2002522696A |
A motor driven pump comprises a motor stator (30), a motor rotor (10) operable to rotate around the outside of the stator (30) and a pump mechanism (40, 50) driven by the motor rotor (10) and disposed at least partly inside the motor sta...
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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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