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JP2007297970A |
To effectively inhibit contact of an impeller and a casing in a pump having a depressed grooves generating lift formed on the impeller and/or the casing. This pump 10 is provided with a roughly disk shape impeller 36 and a casing 39 rota...
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JP2007270826A |
To provide a fuel pump preventing poor operation of a motor part by inhibiting electrical short of a brush and a rotary shaft member of an armature. The fuel pump is provided with a pump device, a motor device 4 that has a commutator 70 ...
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JP3991096B2 |
System for feeding a suspension, preferably a suspension of chips in a liquid carrier, to a pressurized vessel in a cellulose pulp mill, which system comprises at least one pump (25, 26) between a low-pressure part and the pressurized ve...
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JP2007255405A |
To provide a fuel pump with increased pump efficiency. In a disk-like impeller 30, vane grooves 36 are formed in the rotating direction, and an annular peripheral part surrounding the vane groove 36 is formed on the outside of the vane g...
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JP2007247634A |
To reduce swelling of an impeller to a direction narrowing a space between a casing and impeller upper and lower surfaces. A resin impeller 20 of the fuel pump comprises a disk shaped core member 21 connected to a shaft 78, and an outer ...
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JP3981628B2 |
A cooling fluid pump in which a cooling fluid is caused to flow to cool a heating element includes a casing brought into a direct contact or an indirect contact via a heat transfer member with the heating element, a pump chamber defined ...
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JP3982262B2 |
An electric fuel pump for supplying fuel by rotationally driving an impeller (30) within a pump flow path (13) with the aid of a motor section (3), wherein vane segments (31A, 31B) of the impeller (30) are staggered by a prescribed dista...
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JP3977040B2 |
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JP3978786B2 |
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JP2007231867A |
To provide a long-life vortex pump having a bearing structure in which chattering is hardly caused. The vortex pump 1 includes an impeller 20 comprising a plurality of blades 22 formed on the periphery of the impeller and a rotor magnet ...
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JP3973991B2 |
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JP2007218154A |
To provide a small size volute pump of a small leakage of fluid inside the volute pump and of high pump efficiency. This volute pump 10 has a disk shape blade part 24 including a plurality of blades 21 on an outer circumference, an impel...
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JP2007218163A |
To provide a pump and a pump system capable of improving mounting efficiency to satisfy miniaturization demand of information apparatus and high density mounting demand of various types of electronic components and of being controlled wi...
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JP2007211679A |
To provide a periphery pump preventing the locking of an impeller by suppressing its swelling amount to alcohol and toluene contained in fuel. This periphery pump which introduces fuel from a fuel tank and sends it to an internal combust...
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JP3964200B2 |
To improve pump efficiency of a fuel pump. An impeller rotating in a pump casing is approximately disk- shaped. In an area extending along the outer peripheries of two sides, groups of recess parts are formed repeatedly and mutually spac...
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JP3959012B2 |
To reduce power consumption by improving pump efficiency of a friction regenerative fuel pump of a side channel shape. Lead-in passages 3b, 4b for leading fuel into main flow passages 3a, 4a are respectively and independently provided in...
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JP2007192158A |
To prevent the infiltration of fluid into a motor part while preventing the flow out of transfer fluid transferred by an impeller to the outside. A hydrogen circulating pump 1 for circulating surplus hydrogen discharged from a fuel cell ...
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JP2007187145A |
To provide a fuel pump preventing accumulation of fuel and foreign matter in a bearing hole of a fuel delivery side provided with a bearing of a rotary shaft of a rotor.A motor part 13 is a brushless motor, and sucked-in fuel is pressuri...
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JP3949448B2 |
To provide a fuel pump capable of most efficiently using pump efficiency without shortening a working life. A large clearance anticipating abrasion loss is secured in the area where the pressure within a channel groove is low. A small cl...
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JP3949191B2 |
To provide a fuel force feed unit by which labor taken by manufacture and installation is reduced and deformation of a casing is reduced. An annular gap is arranged between an outer peripheral surface of a support shell and an inner wall...
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JP2007182851A |
To provide a Wesco pump capable of preventing sliding loss and wear and improving pump performance by preventing the inclination of an impeller in a pump casing.When the impeller 36 rotates, the impeller 36 is pressed by the fuel fed out...
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JP2007170199A |
To provide a pump rotatable at a high speed while minimizing wear between a bearing and a shaft.This pump comprises an impeller 1 having a large number of vanes 2 on the outer periphery of a cylindrical part 1A and having a rotor magnet ...
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JP2007162483A |
To provide a cascade pump reducing pressure loss and improving pump efficiency.A roughly arc shape pump passage 30 formed by a casing main body 21 and a casing cover 22 consists of an arc passage part 31, an outlet passage part 32 and a ...
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JP2007166693A |
To provide an axial motor that can suppress the size increase of a rotor (rotor magnet), even if the number of windings of a coil winding is increased for improving the torque performance of the motor, or even if the diameter of the coil...
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JP2007154736A |
To prevent sliding loss and wear and improve pump performance by preventing contact of an impeller and a pump casing when the impeller rotates.An outside end part of grooves 36c, 36d formed on an impeller 36 is shifted to an anti-rotatio...
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JP3933242B2 |
To provide an impeller for a pump to eliminate a need to a cutting work after injection-molding and ensure plane precision of a surface and the back and provide a molding method thereof. An impeller for a pump is formed such that the imp...
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JP2007146751A |
To effectively inhibit contact of an impeller and a casing in a pump having recessed groove formed on the impeller and the casing.A Wesco pump10 is provided with a roughly disk shape impeller 36 and a casing rotatably storing the impelle...
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JP3928356B2 |
Vane pieces (31) which are in an outer peripheral edge portion of an impeller (30) are divided into front and rear groups by a partition wall (32), and arranged in a staggered pattern, and outer peripheral faces of the vane pieces (31) a...
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JP3924730B2 |
PCT No. PCT/JP97/00857 Sec. 371 Date Jan. 22, 1999 Sec. 102(e) Date Jan. 22, 1999 PCT Filed Mar. 17, 1997 PCT Pub. No. WO98/04833 PCT Pub. Date Feb. 5, 1998The invention provides a self-priming centrifugal pump capable of sucking up and ...
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JP3924673B2 |
To provide a Westco type fuel pump which supplies fuel having an increased pressure toward a fuel injection valve without time delay, and has excellent restart property when restarting an engine. An impeller 8 rotated and driven by an el...
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JP3919508B2 |
To provide a liquid treatment apparatus that recovers the precipitative particles from a liquid without settling and depositing them. A liquid tank 15 is provided on the lower part of a venturi spray booth 13 for coating, and a coating p...
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JP3916888B2 |
To provide a regeneration pump capable of being embodied in a small construction by shortening the overall length. The regeneration pump is furnished with an armature 5 rotated by a motor 2 and an impeller 20 rotated interlocking with th...
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JP3918603B2 |
To provide a bearing for a fuel pump capable of securing corrosion resistance of its sliding surface higher than conventional while restricting deterioration of strength or cost increase. This bearing for a fuel pump comprises a sliding ...
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JP3907888B2 |
To simplify a structure of a mold for injection molding without generating a weld phenomenon. This impeller 2 for a circumferential flow pump 1 is provided with a plurality of vane grooves 12 on the outer periphery of a synthetic resin- ...
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JP3907887B2 |
To use an injection-molded impeller as it is without grinding it. This impeller 7 is provided with a plurality of vane grooves 12 on the outer periphery of a synthetic resin-made disc-shaped member 8 to be rotated by a motor, and it is r...
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JP2007085314A |
To attain high speed rotation while minimizing abrasion between a bearing and a shaft.A pump comprises: an impeller 1 in which a lot of blades 2 are disposed to an outer circumference of a cylinder part 1a and a rotor magnet 3 is dispose...
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JP3899473B2 |
To increase the efficiency of a Wesco fuel pump in all regions of rotation and to secure a delivery flow in the low rotation region f an electric motor. The Wesco fuel pump comprises an impeller 7 rotationally driven by the electric moto...
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JP3896278B2 |
To miniaturize a thickness dimension of a casing of a fluid pump. A partition wall part 15 is disposed in a casing 14 and a coolant flow passage 24 is formed at an upper part in the casing 14. A stator 32 having a coil 31 is disposed at ...
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JP2007064044A |
To prevent foreign substances such as slid powder of a brush deposited in a motor M, fine dust passed through a filter, etc., from stirring up in re-starting the motor M and flowing downstream side of the fuel passage and causing the abn...
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JP2007505253A |
The fuel pump (6) has two concentric chambers (20, 21, 22, 23) on two running wheels (9, 10). Those of one wheel (9) are connected to an inlet channel (25) while those of the other are connected to an outlet channel (26). There is a divi...
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JP2007056705A |
To suppress the inclination of an impeller while increasing pump capacity.This fuel pump 10 comprises an impeller of generally disk shape and a casing for rotatably storing the impeller. A plurality of groove groups concentrically dispos...
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JP2007505252A |
A fuel pump unit comprising a housing part (4) arranged between an electric motor (2) and a fuel pump (3). The housing part is provided with expansion joints for compensating thermal expansions or swelling of the material of the housing ...
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JP2006336643A |
To provide a small fuel pump; to realize a fuel tank assembled with the small fuel pump; to increase a freedom degree of design of the fuel tank; and to improve the tolerance range of components in the fuel pump.The fuel pump is provided...
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JP3857563B2 |
To supply cleaning fluid at sufficient delivery pressure and delivery rate using a small pump device to first and second jet nozzles disposed on the right and left sides of a vehicle corresponding to head lamps disposed on the right and ...
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JP3849491B2 |
To provide an ultrathin pump realizing high performance, the long service life, and noise reduction while attaining an ultrathin type. This ultrathin pump is provided with: a ring-shaped impeller 1 formed of a large number of blades on t...
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JP3849526B2 |
To provide an ultra thin pump with high performance, a long service life, and low noise. This ultra thin pump is characterized in that a central position 9 of the thickness of a magnet rotor 3 is displaced to a gravity direction from the...
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JP3843961B2 |
To provide a fuel pump for improving flow of fuel between an impeller and a casing main body and a casing cover, increasing floating force of the impeller, and preventing increase of output loss. The casing main body 50 has a first plane...
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JP2006300035A |
To provide a fuel supply system by which efficiency of exhaust-gas purification is improved by reliably reforming the fuel, and complication and upsizing of the structure can be restrained.The fuel supply system comprises a Wesco pump 16...
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JP3826508B2 |
To reduce the peak of sound pressure to be generated with the rotation of a rotational member. Adjacent angles of blade grooves 24b to be used for a fuel pump are all different from one another. When the total number of blade grooves is ...
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JPWO2005008073A1 |
It has an electron emitting member (2) that emits electrons (e) by applying heat, and an electron collecting member (3) that collects electrons emitted from the electron emitting member, and the electron collecting member is used as a ne...
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