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JPH06330888A |
PURPOSE: To reform a regenerative pump so as to make the flow rate of a liquid to be injected get off with smallness, in this pump that is able to fill up with the liquid in an operating passage and to use it as vacuum pump. CONSTITUTION...
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JPH06323215A |
PURPOSE: To improve flow performance at the time of room temperature without degrading the flow performance at the time of high temperature by providing a displaced route part in the middle of a fuel route corresponding to the outer peri...
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JPH06323216A |
PURPOSE: To improve pump efficiency by avoiding interference of the vortex generated on both surfaces of an impeller. CONSTITUTION: A fuel pump is provided with a disk-shape impeller 11 having a plurality of blade grooves 13 on the outer...
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JPH0692798B2 |
PURPOSE:To improve strength and dimensional accuracy, by constructing a pump impeller of thermoplastic polymer capable of forming aeolotropic melt phase. CONSTITUTION:A plastic pump impeller is constructed of thermoplastic polymer capabl...
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JPH06317284A |
PURPOSE: To form a structure causing no electric leakage to water in a pump casing while keeping performance of a pump itself. CONSTITUTION: Since the connecting parts of a motor 1 and a pump 2, that is, a motor cover 3 and a pump casing...
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JPH06317229A |
PURPOSE: To provide a fuel pump and constituting method therefor in which reworking and scrapping after a general assembly can be preliminarily avoided by preliminarily testing each of a pump action part and a motor part of a modular aut...
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JPH0689752B2 |
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JPH0640959Y2 |
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JPH06299983A |
PURPOSE: To prevent generation of vortex flow by arranging an inclined plane within an edge part area of an impeller blade directed toward at least an adjacent wall and arranging the inclined plane in a rotating direction of the impeller...
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JPH06288379A |
PURPOSE: To enhance pump efficiency by determining the bottom face form of the vane groove of an impeller. CONSTITUTION: In an electric pump for raising a fluid pressure by rotating a disc impeller 4 having a number of vane grooves 41 on...
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JPH06288380A |
PURPOSE: To successively moderate the impact sound by the water flow from the groove of an impeller which reaches a discharge passage by an inclined surface by forming the inclined surface inclined by a prescribed angle in the flowing di...
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JPH06280707A |
PURPOSE: To cool a controller case and also to prevent fuel from infiltrating into this case. CONSTITUTION: A pump part 2b driven by a motor part 2a is built in the motor part 2a consisting of an electric motor, and fuel sucked by actuat...
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JPH06280777A |
PURPOSE: To increase a sucking tolerance of a centrifugal fuel pump by turning incomming fuel away to a side direction, and to substantially prevent a backflow of fuel to an inlet passage. CONSTITUTION: A baffle plate 116 is disposed bet...
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JPH06272632A |
PURPOSE: To keep a residual pressure at a low value inside a fuel passage after an engine is stopped, and restrain leakage from a fuel injection valve. CONSTITUTION: A check valve 1 for restricting a reverse flow of fuel at the time of i...
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JPH06272685A |
PURPOSE: To restrain the occurrence of negative pressure and a turbulent flow via the attainment of a smooth vortex flow, and improve pump efficiency by forming the predetermined angle of inclination on the rotating rear wall of an impel...
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JPH0636317Y2 |
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JPH0663487B2 |
A mounting for an electric fuel pump in a fuel tank of a passenger vehicle which includes an oversize, open-ended enclosure to surround a pump within the fuel tank. The enclosure is mounted on a pipe depending into the fuel tank from a c...
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JPH06229389A |
PURPOSE: To automatically return an impeller to a favorable central position. CONSTITUTION: Respective axial gaps on both sides of an impeller 26 have inner ring-shaped throttle gaps 82, 182 and outer ring-shaped throttle gaps 84, 184. W...
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JPH0660637B2 |
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JPH0654116B2 |
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JPH0650116B2 |
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JPH06167292A |
PURPOSE: To suppress generation of cavitation by improving suction performance of a vortex pump. CONSTITUTION: A casing 2 has a circular vane fitting groove 6 and a circular boosting passage 7 on an outer peripheral side thereof. The boo...
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JPH06167291A |
PURPOSE: To prevent contraflow from a discharge port side to a suction port side and effectively improve pumping effect by securing areas of axial both end surfaces of vane pieces (seal surfaces). CONSTITUTION: In view of molding, an imp...
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JPH06159282A |
PURPOSE: To enhance the efficiency of a regenerative pump by enabling a swirl stream generated in a pump passage by rotation of an impeller to flow into grooves between blades. CONSTITUTION: Several blades 39 are formed on the outer peri...
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JPH0637587U |
[Purpose] It prevents the engaging portion of the rotating shaft from rotating relative to each other in the engaging hole of the turbine vane, and solves problems such as abnormal wear of the turbine vane. [Constitution] A spring accomm...
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JPH0617031Y2 |
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JPH0633790B2 |
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JPH0631634B2 |
The present invention relates to a regenerative pump having a casing with a casing inlet and casing outlet, an impeller disposed on a shaft and containing at least one bucket ring with axially and radially open bucket compartments on the...
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JPH0631633B2 |
A rotary turbine fluid pump employs unique configurations of turbine vane receptacle opening and turbine vanes. The turbine vane receptacle is connected to a circumferentially extending fluid path, in which free ends of turbine vanes are...
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JPH0614073Y2 |
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JPH0614070Y2 |
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JPH0625553U |
[Purpose] At the start of driving after assembly, the contact between the brush and the commutator is set to a stable surface contact state at an early stage, and the accuracy of the flow rate inspection is improved. [Constitution] The c...
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JPH0693992A |
PURPOSE: To greatly improve the pumping performance by suppressing the generation of vapor in a pump and ensurance of a stable fuel delivery amount. CONSTITUTION: An impeller 30 for feeding fuel with a pressure is rotatably contained in ...
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JPH0658285A |
PURPOSE: To prevent the lowering of efficiency of a pump by rendering the sucked fuel not to obstruct the characteristic spiral rotary stream in a Wesco pump. CONSTITUTION: A ring region of a pump chamber 40, in which an inlet opening 54...
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JPH0650280A |
PURPOSE: To provide a fuel pump capable of operating excellently particularly under high temperature fuel treating conditions. CONSTITUTION: An electric-motor turbine-vane fuel pump 10 includes a housing 12 having a fuel inlet 45 and a f...
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JPH066235Y2 |
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JPH0642489A |
PURPOSE: To reduce the noises, especially a high frequency noise, of a Westco pump which is used as the water supply pump for a small-sized boiler and for a shallow well for domestic use. CONSTITUTION: As for a Westco pump, an impeller 3...
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JPH062690A |
PURPOSE: To improve pump performance reliably by means of a resinous impeller in a Westco type fuel pump. CONSTITUTION: A plurality of blade grooves 322 and blade plates 323 are formed alternately on the outer periphery of an impeller 32...
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JPH0596485U |
[Purpose] The purpose is to improve pump efficiency and obtain an in-tank fuel pump with excellent durability. [Constitution] A hardened and precision-finished steel ball 18 was inserted into the bearing 11 by a clearance fit and made ro...
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JPH0587680B2 |
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JPH05321865A |
PURPOSE: To provide an electric fuel pump accumulated with no deposit at a coupling section between an impeller and the rotary shaft of the pump and causing no defective rotation of the impeller even if an alcohol fuel is used or an infe...
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JPH05317851A |
PURPOSE: To activate the contact of the catalysts and adsorbents deposited and impregnated on and in disks and liquid flow by forming liquid thin-layers between the disks to impart the ability to separate the foreign matter in liquid on ...
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JPH0584838B2 |
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JPH0584400B2 |
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JPH05302585A |
PURPOSE: To simplify and miniaturize a structure so that suction and delivery of fluid can be provided in an impeller rotary surface and obtain a large delivery pressure and delivery amount as compared with device measurement. CONSTITUTI...
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JPH0579833B2 |
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JPH0579835B2 |
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JPH0578989U |
[Purpose] In the cascade pump 10, interference between the narrow portion 41 of the casing 18 and the impeller 40 can be avoided without requiring high accuracy in assembling and processing the casing 18 and the impeller 40 and the like....
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JPH05280438A |
PURPOSE: To reduce the manufacturing cost of a feed unit and enable the unit to be assembled quickly and checked easily by inserting an electric drive motor for driving the feed member of a pump portion as a structural unit enclosed by a...
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JPH05272481A |
PURPOSE: To reduce assembling manhours so as to attain cost reduction in addition to obtaining effective action upon the movement of a fluid from a suction port to a discharge port by providing a rotor with a return passage. CONSTITUTION...
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