Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 351 - 400 out of 1,339

Document Document Title
JP3971369B2
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 ge...  
JP3960517B2
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 di...  
JP2007125930A
To provide a vehicle brake device equipped with a pump body having structure capable of easily machining a suction port.The suction port 62 is formed by expanding a third central hole 72c formed on a third cylinder 71c to the diameter of...  
JP2007127071A
To effectively prevent wear of a bearing and a shaft end part of a drive shaft in a two stage pressure boosting type internal gear pump even when the same is used for pressurizing a liquid containing a lot of contamination in the liquid ...  
JP3922120B2
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 join...  
JP3915241B2
To satisfactorily drive pumps in a pump device which has the plural rotational pumps by suppressing flexure of a driving shaft even when high pressure at discharge ports is applied to the driving shaft. In this pump device 100, a rotatio...  
JP3911135B2
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 ...  
JP3872104B2  
JP3899785B2
To bleed pump devices in vehicular brake systems of air in appreciable fashion. A drive shaft 54 is arranged in a horizontal position, and a plurality of rotary pumps 10 and 13 are disposed with their discharge openings 61 and 63 and suc...  
JP3876128B2
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...  
JP3874154B2
To reduce slide sound generated by sliding of a partition member and a rotor pair, and reduce friction torque loss in a fluid pump. In a casing 21 of the fluid pump 20 parted into a first casing 22 and a second casing 23, plural rotor pa...  
JP3875734B2
To install a fuel pump for motorized vehicles in a motor compartment so that it is easily accessible for maintenance and repair and reduce its cost by constructing it from one pump unit of a multiple pump. A multiple pump 2 consists of a...  
JP2006283573A
To provide a multiple pump device capable of easily centering between connecting both pump members, while reducing processing manhours and processing cost of a connecting part of the pump members.In this multiple pump device, rotation tr...  
JP3861835B2
To provide a fuel injection pump provided with a feed pump for preventing deformation of a pump plate 26 without making thickness of the pump plate 26 thick. In the pump plate 26 of the feed pump, an inlet port 26b and an outlet port 26c...  
JP2006250153A
To prevent abnormal abrasion in wall faces of a pair of gears 52 and a gear chamber, in a driving part of the pair of gears of a crankshaft or in gear curve parts of the pair of gears caused by twisting and rotary motion of the pair of g...  
JP3851680B2
To provide a multiple gear pump in which the first body and the second body can be positioned to a plate without any increase in costs or any increase in the size of the device. The end part of the first drive shaft winding bush 6a posit...  
JP3848696B2
To reduce processing part by forming a through hole comprising a spline hole part and a hollow part of a larger diameter than that in an axial direction in a driven shaft of a first gear pump, and splinefitting a drive shaft of a second ...  
JP2006517634A  
JP3829824B2
To provide a fuel injection pump absorbing inclination of a camshaft 4 caused by pump force-feed load and inclination of the camshaft 4 in assembly without increasing the number of parts, and prevent increase in size of a feed pump 2. In...  
JP2006170149A
To provide a tandem type oil pump capable of improving vehicle installing performance by shortening the length in the shaft direction of a pump.This tandem type oil pump has a housing body 1, a pump cover 2 for sealing an opening part 1a...  
JP2006170148A
To provide a tandem type oil pump for merging after being straightened, without collision of lubricating oil delivered from both pumps.This tandem type oil pump has a spacer 3 between a first trochoidal pump 4 and a second trochoidal pum...  
JP2006161616A
To provide a tandem type trochoid pump capable of improving workability during assembling without increasing the size of a housing, and also to provide a method of manufacturing the tandem type trochoid pump.The tandem type trochoid pump...  
JP2006138294A
To provide a lubricating device comprising a firs pump for feeding oil from an oil tank and a second pump for feeding the oil stored in the oil tank to parts to be oiled, having a smaller size and a greater discharge amount per rotation ...  
JP2006125239A
To provide an small-sized oil pump ensuring reliability by preventing a non-lubrication condition in the oil pump having possibility of sucking air from a suction port.In this oil pump 100 having a housing 30 forming a first cylindrical ...  
JP2006115686A
To provide a fluid pressure device, in which cooling of a motor is improved, for offering auxiliary power to a vehicle.The fluid pressure device that offers the auxiliary power for a vehicle comprises a fluid circulating system, which ha...  
JP3773370B2
To compactly constitute an electric pump integrally furnished with a pump body, an electric motor for driving and a damper chamber to reduce pulsation of discharge oil. A ring recessed part 20 having an opening on the side facing against...  
JP3770023B2
To provide a multiple gear pump/motor shortened in the axial direction. The gear pump/motor A2 on the rear cover side 10c of a casing is structured so that a projection 11c extending from a drive gear shaft 11a is at least fitted in a dr...  
JP3760297B2
To provide a combined gear pump with a first gear pump and a second gear pump, in which hydraulic oils of different properties can be treated without mixing. A first internal gear pump 1 is constituted by accommodating a ring-shaped firs...  
JP3760298B2
To provide a combined gear pump with a first gear pump and a second gear pump, in which hydraulic oils of different properties can be treated, and can prevent free fall of the hydraulic oil of the first gear pump that results in mixing w...  
JP2006502314A  
JP3750719B2
To provide a hydraulic circuit of low fuel consumption reduced in rise of an oil temperature. Hydraulic pumps for a working vehicle and for steering, which are used in common in the prior art, are provided individually inside an integrat...  
JP2005344588A
To provide a pump device capable of preventing leakage of working fluid into outside at the time of assembling in a shipping destination, and preventing various failure accompanied by the leakage.In this pump device, a reduction chamber ...  
JP2005330969A
To provide a pump-to-pump coupling that is tough and simple.Related to a device and a method for pumping fluid, this device comprises a first pump formed of a first housing, and the first pump is provided with a first primary shaft insta...  
JP3738376B2
To provide a composite vane pump to suppress lowering of durability and assembly workability of a sealant and reduce size and weight. A composite vane pump is formed such that the main part 12a side of the first drive shaft 12 of a first...  
JP3739644B2
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...  
JP2005533215A  
JP2005533216A  
JP3734622B2
To provide a multiple pump having three or more systems of oil pressure sources respectively having different discharge amounts in one small and compact cylinder block without impairing of sucking performance in its piston pump. This mul...  
JP3734383B2
To easily assemble a motor-driven pump and to exchange a tank cylinder by a part unit by fitting an opening side end part of the tank cylinder into a recessed groove formed on the supporting surface of a pump main body on one surface of ...  
JP3731927B2
To enable an delivery of a gear pump to be switched arbitrarily by providing a rod member allowed to rotate in one body with the second drive gear shaft out of the first and the second drive gear shafts and to make movement in axial dire...  
JP2005282485A
To provide a tandem vane pump not requiring to use a high cost ball bearing.A body B is provided with a front pump mechanism P1 and a rear pump mechanism P2. Drive shafts 4, 5 of the both pump mechanisms P1, P2 are separated and the driv...  
JP3728377B2
To drive each pump interposed in a paint supply system of each color paint by a small motor of comparatively small torque and easily increase pumps according to the number of color of paint. Revolution of a motor 2 for driving pump is tr...  
JP2005273461A
To reduce pulsations in a tandem vane pump equipped with a pair of pump mechanisms P1, P2.In a composition of a tandem vane pump, a pair of pump mechanisms P1, P2 formed by assembling cam rings 4, 5 in bodies 1, 2 and incorporating in ea...  
JP2005273648A
To provide an electric pump equipped with inscribed-type pump, and capable of increasing a life span.The electric oil pump 10 comprises a stator 13 in which a core 14 being enwound by a coil 15 is embedded; a cylindrical permanent magnet...  
JP2005529279A  
JP2005528559A  
JP3723408B2
To increase the rigidity strength of the coupling of upper and lower eccentric parts, to prevent the occurrence of elastic deformation of a rotary shaft, and to improve reliability of a rotary compressor. A two-cylinder type two-stage co...  
JP2005233421A
To provide a charge pump which meets pressure requirements of a charge circuit and a auxiliary circuit with minimum power loss.A charge pump having two independent outlets being capable of meeting pressure requirements of both a charge c...  
JP3712817B2
To provide a composite type gear pump that is easy to set up the optimum specifications of an external gear pump, and beside, there is no fear of abrasion and seizure happening. This composite type gear pump is so constituted hat an exte...  
JP2005220910A
To provide an oil pump for an automobile transmission which has improved efficiency over all operation ranges and in which a discharge flow rate preferably has no relation with speed of an internal combustion engine.In the oil pump for t...  

Matches 351 - 400 out of 1,339