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JP3191489U |
To provide a group of pumps having a simple structure and arrangement and appropriately cooling an electronic control device of a motor provided with electric speed control. A group of pumps for a vehicle cooling circuit, a main casing h...
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JP5473902B2 |
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JP5426183B2 |
A lubricating pump (1) having a first stage (5) and a second stage (10); the first stage (5) in turn has an intake (6) connectable hydraulically to a tank (4) of lubricating fluid, and a delivery outlet (7) connectable hydraulically to a...
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JP5397117B2 |
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JP5395631B2 |
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JP2014009690A |
To improve a conventional double-internal gear pump.The present invention relates to a double-internal gear pump (1) having two internal gear pumps (2) as reverse-feeding pumps of a hydraulic 2-circuit type vehicle brake device slip-cont...
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JP2013238210A |
To provide a multistage oil pump capable of being used even when a pressure and temperature are high by housing a rotor case in a housing, since conventional oil pumps cannot be used when the pressure and the temperature are high.In an o...
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JP5334829B2 |
To provide a pump device inhibiting enlargement of a pump by increasing flexibility in layout of liquid passages. Working fluid from a first external gear pump part is discharged from a first discharge port formed on a support plate prov...
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JP5323080B2 |
The invention relates to a pump assembly for the synchronous pressurization of two fluid circuits. Two internal gear pumps are disposed together in a pump housing and rotationally driven by drive shafts thereof. Pinions of the pumps are ...
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JP2013177817A |
To provide a fluid charging method for performing, for example, a fixed amount charging or a surface level restricted charging of fluid into an open container or a sealed container, preventing dripping of the fluid, and enabling charging...
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JP5232842B2 |
An oil pump unit with a variable flow rate includes lubrication pumps and a control pump that are driven by rotation of a crankshaft of an engine, and changes an oil supply amount from the control pump to each part of the engine, in whic...
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JP5232843B2 |
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JP5210380B2 |
The invention relates to a pump arrangement for a hydraulic unit, particularly a vehicle brake system, having a first internal gear pump (2) with a first ring gear (20), a first pinion gear (23), and a first sickle-shaped segment piece (...
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JP2013072370A |
To provide an oil pump device capable of smoothly and rotatably supporting a mechanical pump and an electric pump, by reducing the number of part items, while securing an installation space of the electric pump.A pump incorporating space...
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JP5184617B2 |
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JP2013044321A |
To increase the discharge pressure and discharge amount of a fluid by restraining the fluid sucked from a suction port, from leaking to the driving gear side.The gear pump 1 includes the driving gear 2, and a first driven gear 3 and a se...
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JP5104656B2 |
A variable displacement rotary pump includes a main pump unit, an auxiliary pump unit, a discharge passage, a bypass passage, a suction passage, a check valve and a control valve. The suction passage is in communication with the discharg...
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JP5103570B1 |
To provide a rotary fluid machine having a simple structure, a small number of parts, high performance and low cost production, and high reliability without using a complicated crank mechanism. A drive shaft 132 having clutch engaging po...
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JP5104655B2 |
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JP5073710B2 |
To provide a fine-bubble generating apparatus in a hull to reduce fluid friction resistance by forming thick water layers including fine bubbles on an immersed surfaces of the hull, using a root pump which can mix a large amount of air i...
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JP2012207637A |
To provide an electric oil pump that can suppress heat generated by an electric motor under a low-temperature environment.The electric oil pump includes: a first pump element 1 and a second pump element 2 that are driven by the electric ...
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JP5053848B2 |
A pump is formed by a housing (10) having an inlet (11) for connection to a source of fluid and an outlet (12) for pumped fluid. A rotor (15) is rotatable within the housing and the inlet (11) and the outlet (12) are spaced apart around ...
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JP5047439B2 |
A motor-pump unit including an electric motor and a pump. The pump is concentrically surrounded by the rotor/stator of the motor. The rotor of the electric motor is U-shaped, viewed in an axial section. The cross-piece of the "U", in the...
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JP5040214B2 |
In a double gear pump 2 that is provided with a drive gear 20; two driven gears 21 and 22 that are oppositely arranged with the drive gear 20 therebetween, a first bearing 36 that supports a drive shaft of the drive gear 20; and a second...
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JP5016776B2 |
The invention relates to a hydraulic system ( 1 ) comprising a main pump ( 12 ) and a precompression pump ( 5 ), whereby the outlet ( 8 ) of the precompression pump ( 5 ) is connected by a connecting line ( 9 ) to the inlet ( 11 ) of the...
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JP5007085B2 |
When the pressure in a main fluid supply channel is lower than a no-load operation start pressure, the spool moves against the biasing force of a biasing member, and the area of opening of a auxiliary fluid supply channel is reduced with...
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JP4964930B2 |
A pump assembly including a housing, a pump unit having a low pressure portion and a high pressure portion and accommodated in a pump unit receiving portion which is formed in the housing, a suction passage, a low pressure chamber commun...
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JP2012122473A |
To provide an oil pump device wherein easy installation of an electric pump is possible.A mechanical pump 20 having an inner gear 21 driven by an engine and an outer gear 23 meshing with the inner gear 21 and an electric pump 30 having a...
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JP2012107526A |
To provide a triple gear pump in which a volumetric efficiency is increased by improving the sealability between the tooth crests of a gear disposed at the center and the internal wall surface of a casing.The gear 2 at the center of this...
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JP2012107598A |
To provide an oil pump device allowing easy installation of an electric pump.In this oil pump device, a mechanical pump 20 including an inner gear 21 to be driven by an engine and an outer gear 23 engaged with the inner gear 21 and the e...
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JP4920971B2 |
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JP4880817B2 |
The invention relates to a pump assembly comprising a vane-cell pump and a second hydraulic pump which is driven together with the same. The vane-cell pump has a suction area in which first pressure chambers between the vanes and second,...
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JP4872845B2 |
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JP4833277B2 |
A motor vehicle hydraulic pump (1) is provided comprising a gerotor rotor set or planetary rotor set and at least two output stages. A first output stage (10) of the hydraulic plump (1) is connected to a lubricant, in particular, a clutc...
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JP4796026B2 |
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JP4776203B2 |
A variable displacement vane-type fluid pump is provided which permits improved regulation of the pump discharge such that the pump can meet the various requirements of lubrication for internal combustion engines at all speeds with minim...
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JP4764567B2 |
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JP4732579B2 |
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JP4681126B2 |
A highly-viscous-fluid applying apparatus including a fluid supply device operable to supply a highly viscous fluid, a delivery nozzle from which the highly viscous fluid is delivered, a pump disposed between the fluid supply device and ...
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JP4682807B2 |
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JP3166911U |
To provide a pump capable of smoothly sucking and discharging a fluid with less wear of a partition wall. A cylindrical rotating body 2 or 4 and a cylindrical eccentric rotating body 3 rotating at the same time inside or outside the rota...
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JP4521005B2 |
An oil pump pressure control device is configured from a first discharge passage (11) to an engine (E), a first return passage (12) that returns to an intake side of an outer circumferential side rotor, a second discharge passage (13) to...
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JP2010159765A |
To provide a volume rotary screw machine which has a wide range of technical and functional potential capacity in reduction of a range of an angle of thermodynamic cycle while improving its efficiency and can reduce heat loss as a whole....
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JP2010144570A |
To finely control a workload in a gear pump. This gear pump includes: a gear group 1 composed of not less than four even-numbered gears 1a to 1d annularly arranged with adjacent gears engaged with each other; a first casing 2 surrounding...
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JP4492590B2 |
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JP4488491B2 |
The assembly has two pumps (P1, P2) driven by a rotor (R1, R2) of respective electric motors (E1, E2). The rotors are installed in series one behind another. One of the pumps is axially installed between a frontal face of one electric mo...
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JP2010519447A |
A flexible impeller pump includes first and second component housings. The first component housing includes a first flexible impeller and the second component housing includes a second flexible impeller. As these impellers rotate within ...
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JP4472224B2 |
A turbomachine is operated in a manner to improve the degree of efficiency of a machine of this type. To this end, fresh air that has been drawn in by suction is isochorically heated in individual, closed off conveying and heating chambe...
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JP4462938B2 |
An extruder system includes an extruder for axially extruding a rubber or plastic material in a barrel by rotation of an extrusion screw arranged in the barrel, and a gear pump driven by a rotational force for rotating the extrusion scre...
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JP2010090807A |
To provide a double vane pump allowing easy switching.The double vane pump includes a first and a second change-over valve 26A, 26B connected to a first and a second vane pump 101, 102 respectively, and changing-over between supplying of...
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