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Patent Searching and Data


Matches 501 - 550 out of 1,401

Document Document Title
JP2004509269A  
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...  
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...  
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...  
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...  
JP2004044540A
To provide a method for manufacturing a tightening joint member, capable of generating a prescribed load by adjusting a position, and realizing time reduction for the position adjustment.This method is to manufacture the tightening joint...  
JP2004503724A  
JP2003328958A
To provide a serial parallel switching double gear pump and a switching circuit as a fluid supplying system wherein a temperature rise of fluid is restrained, even when the consumption of fluid such as fuel is decreased in contrast to th...  
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...  
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...  
JP2003314440A
To assure necessary delivery amount by preventing delivery oil from the delivery ports of the other hydraulic pumps from flowing into a relief valve with a low relief pressure and connecting the delivery ports of hydraulic pumps, when a ...  
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...  
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...  
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...  
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...  
JP2003529019A  
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...  
JP2003527519A  
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...  
JP2003525395A  
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...  
JP2003184523A
To provide an oil pump structure in which the influence of the pulsation of oil upon a relief valve is reduced and, thus, the operation of the relief valve is stabilized.In the oil pump structure, a bent part 11 for changing the flow dir...  
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...  
JP2003145802A
To make devices compact and reduce costs by eliminating the need of separately setting an actuator such as a solenoid in an ink jet printer which selectively drives three or more pumps by a single driving source.The ink jet printer is pr...  
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 ...  
JP3401012B2  
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...  
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...  
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...  
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 ...  
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...  
JP2003508688A  
JP3380548B2  
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...  
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...  
JP3372373B2  
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 ...  
JP2003502551A  
JP2003013846A
To provide a pump system capable of stably sending out small quantity of fluid by using a plurality of pumps.This system is composed of a sending out gear pump 20 connected to a first pipe 42 led out of a storage tank 12 and sending out ...  
JP2003501589A  
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...  
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 ...  
JP2002354764A
To provide a drive unit having an enlarged utilization region. In an electro-hydraulic drive unit that is of a type provided with an electric motor and a hydraulic pump driven thereby, at least another one electric motor 2 is installed i...  
JP2002349453A
To prevent a hydraulic fluid leaking from one hydraulic pump from penetrating into a pump function part of the other hydraulic pump. The pump device comprises one motor 2 disposed in the center, two hydraulic pumps 1 and 3 that sandwich ...  
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...  
JP2002539377A  
JP3345713B2  
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...  
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...  
JP2002535538A  

Matches 501 - 550 out of 1,401