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Patent Searching and Data


Matches 351 - 400 out of 663

Document Document Title
JP2004066759
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...  
JP3526885
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...  
JP2004044540
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...  
JP2003328958
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...  
JP2003314469
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...  
JP2003314440
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 ...  
JP2003314465
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...  
JP2003307186
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...  
JP2003286973
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...  
JP2003278669
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...  
JP2003278801
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...  
JP2003269345
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...  
JP2003252218
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...  
JP2003222063
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...  
JP2003184523
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...  
JP2003166483
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...  
JP2003145802
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...  
JP3426559
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 ...  
JP2003106125
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...  
JP2003106258
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...  
JP3415061
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 ...  
JP3414797
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...  
JP2003065252
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...  
JP2003042081
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...  
JP2003035278
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...  
JP2003027912
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 ...  
JP2003013846
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 ...  
JP3386501
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...  
JP2002371972
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 ...  
JP2002354764
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...  
JP2002349453
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 ...  
JP2002340159
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...  
JP2002317774
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...  
JP3363472
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...  
JP2002303160
To inhibit the rise of temperature of the fuel even when the consumption of fuel is small comparing to the rotating speed of an engine.Plural booster parts 28, 29 are selectively connected in parallel or in series.  
JP2002276658
To provide a pump device having a simple structure and a bearing structure dispensing with a lubricating material.A refrigerant (liquid ammonia) channel 2 communicating a suction port 33 and a delivery port 43 is formed in a housing 3 an...  
JP2002266613
To provide a device structure in a lubricating device provided with a triple oil pump and its manufacturing method miniaturizing and compactifying an oil pump, shortening an oil pump attaching part size, facilitating assembly work of the...  
JP2002239433
To provide a high viscous fluid applying apparatus capable of controlling coating quantity with high precision.A discharge nozzle 90, a nozzle rotating apparatus 92, a screw pump 94, a screw rotating apparatus 96, an adhesive supply appa...  
JP2002221101
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...  
JP2002221164
To provide a multifunction and high-reliability movable vane type rotating device capable of realizing output characteristics such as one or more kinds of discharge amounts and discharge pressure, and handling two or more kinds of fluids...  
JP2002202018
To reduce sliding resistance (friction loss) of an outer gear to a pump easing of a trochoidal gear type fuel pump and reduce the pulsation of delivery pressure.Two inner gears 25, 26 are disposed with a partition wall 28 sandwiched betw...  
JP2002202071
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...  
JP2002195165
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...  
JP2002195168
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 ...  
JP2002188580
To simplify piping, to save a space for the same, to facilitate maintenance and inspection, to simplify a pump structure and to reduce costs in a twin integrated gear pump.Two pump bodies wherein main driving shaft gears 3a, 3b and drive...  
JP2002161870
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...  
JP2002119839
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 ...  
JP2002120552
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...  
JP2002089217
To provide an oil pump structure capable of miniaturizing and lightening the whole device and improving the pumping efficiency by solving problems that when a relief valve is integrated with a cover of the oil pump, the cover is enlarged...  
JP2002087236
To improve pump efficiency when using rotary pumps for controlling brake fluid pressure.Slit parts 90a to 90d are formed on the outer periphery of first to third cylinders 71a to 71c opposedly to the delivery side of the respective rotar...  

Matches 351 - 400 out of 663