Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 501 - 550 out of 1,416

Document Document Title
JP2004278518A
To provide a motor-driven pump unit provided with an electric motor including a stator and a rotor, a pump concentrically enclosed by the rotor of the motor which is U-shaped in an axial sectional view, a web of the U-shape provided in t...  
JP2004278381A
To provide a gear pump which materializes reduction of liquid leakage between a pump chamber and an inside space.In a pump part 11 of a two stage gear pump 1, the inside space is formed in a position around a cylindrical surface 29a of a...  
JP2004530553A
Dark 集 of sediments, such as sludge, a water area, etc. Equipped with the following requirements, especially the waste sludge of a sewage disposal plant, or equipment for drying: At the end, a principal axis, Nijo which has a suction d...  
JP2004251283A
To provide a double-pump and double-motor unit of simplified structure and optimized cooling.This electrohydraulic type double-pump and double-motor unit for a self-propelled work machine, especially platform truck is provided with a fir...  
JP2004232627A
To further improve a motor pump unit of a conventional structure with relation to manufacturing cost and necessary space especially.This motor pump unit is provided with at least two internal gear pumps respectively including a small gea...  
JP3575180B2
To ensure a good assembly workability to the housing of an inner rotor without giving an effect to a seal width for the housing of the inner rotor, in an oil pump. An oil pump is provided with an inner rotor to which a rotation is transm...  
JP2004197573A
To provide a fluid feeding system capable of improving the reliability by minimizing the increase in weight, miniaturizing and weight-saving thereof.A fuel pump 2 is made a triple gear pump having a first pressurizing part 9 and a second...  
JP3573242B2
To provide a vane pump that reduces an extent of horsepower consumption, and also to heighten the occurrence limitation of cavitation through an improvement in suction efficiency, and further to have pumping efficiency so improved enough...  
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 ...  
JP2004190682A
To provide a new and improved gear pump assembly, and a new and improved hot melt adhesive dispensing assembly having a plurality of the new and improved gear pump assemblies incorporated therein.Each gear pump assembly 310 is mounted up...  
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 ...  
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...  
JP2004513275A
The present invention shows substitution and so-called predominance to the conventional technology by offering the double type port constant capacity form liquid pressure pump (20) whose efficiency improved by carrying out the part style...  
JP3516685B2  
JP2004509269A
The present invention is equipped with a main pump (12) and 予圧縮ポンプ (5), and the exit (8) of 予圧縮ポンプ (5) is related with the liquid pressure equipment (1) connected with the entrance (11) of the main pump (12) by th...  
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
In addition to an operation oil tank (13), the present invention relates to the 可搬 type hydraulic pump unit (1) equipped with the housing (2), the pump (5), and the drive motor for pump (5) (6) that is especially the forms of an elec...  
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
(57) Summary book invention relates to the motor pump unit with which the electric motor 1 and the pump 2 of each other were unified structurally. In the motor pump unit of the present invention, the pump 2 is surrounded by the rotor / s...  
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
(57) By controlling a valve mechanically, summary book invention restricts the capacity of the discharge fluid added to the line pressure of a liquid pressure system, and offers the dual port liquid pressure fixed displacement pump (20) ...  
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
(57) The liquid pressure converter (10) for changing summary input liquid pressure power into output liquid pressure power possesses the cam block (26) containing the cam opening (30) which 画成 a pump section (32) and a motor section ...  
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
(57) Summary book invention is a device which pressure-feeds fluid by the hydraulic pump (10) and a drive mechanism part (12), and the above-mentioned hydraulic pump (10) as an independent structure element, While being connected in the ...  
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  

Matches 501 - 550 out of 1,416