ЖИДКОСТНО-КОЛЬЦЕВАЯ МАШИНА

Изобретение относится к компрессоростроению и вакуумной технике, конкретно к жидкостно-кольцевым насосам и компрессорам. Жидкостно-кольцевая машина с автоматическим регулированием проходного сечения нагнетательного окна содержит корпус, торцевые крышки со всасывающим и нагнетательным окнами для газовой среды и установленным с эксцентриситетом валом, на котором расположено рабочее колесо. Нагнетательное окно снабжено заслонкой и механизмом регулирования положения заслонки. Отвод жидкости осуществляется через дополнительное окно, расположенное в зоне сжатия, оснащенное механизмом регулирования проходного сечения, включающим заслонку, электромеханический привод и орган управления. Изобретение направлено на повышение производительности, глубины предельного вакуума и коэффициента полезного действия жидкостно-кольцевой машины. 2 ил.

OELPUMPE VARIABLER LEISTUNG.

ROTATIONSPUMPE

Volumenstromvariable Rotorpumpe

Improvements in rotary compressed air motors

... 587,262. Rotary engines. HOLMAN BROS., Ltd., and ARTHUR, J. Dec. 22, 1944, No. 25717. [Class 110 (ii)] An outwardly-sliding vane type of engine, actuated by compressed air,or other gas, is reversed, started, stopped and its speed regulated by means of one handle 11 which operates a rotary valve 16 and has silencing means for the exhaust. Fig. 6 shows the fullyopen position, air passing from an inlet 18, through aligned ports 13, 19, passages 15, 24 into a, cylinder 9 where the air moves a piston 4 which is coupled by a pin 6 to a partiallyrotatable sleeve 2. Air passes from the passage 15 to a further passage 15a leading to inlet chambers 14 and one or other of the latter is connected to the working chamber by a port in the sleeve 2 being in alignment with a port in a liner 1. A slide valve 35 controls the air supply to the working-chamber and is acted on by a centrifugal governor 34. In Fig. 7, air may pass through the left-hand port 13 to a passage 20, port 21 and passage 22 leading to ...

VANE-TYPE MOTOR

Improvements in or relating to rotary pumps or the like

Rotary hydraulic motor

... 1,075,976. Rotary motors. A. V. APIALA. Nov. 8, 1965 [Nov. 10, 1964], No. 47197/65. Heading F1F. A rotary hydraulic motor comprises a vaned rotor 8, Fig. 1, eccentrically mounted in end plates (2), (3), Fig. 2 (not shown) of a cylindrical housing 1 having annular parts 4, 5 of L-shaped cross-section secured between the end plates to form an annular groove 6 within which a ring member 14 is closely but slidably mounted. The ring member 14 is formed on its outer periphery with gear teeth 16 engageable by a rotatable gear 17 and has secured on its inner periphery a regulating piece 15 spanning the outer ends of at least two adjacent vanes 9 and shaped so that its inner surface lies flush with the inner peripheral surface of the parts 4, 5. A blocking piece 19 secured to one or both parts 4, 5 is fitted between inlets 12 and outlets 13. Hydraulic pressure fluid admitted through the inlets 12 acts on the vanes 9 to rotate the rotor and at the same time passes through the annular groove 6 until ...

ROTARY PUMP

INTERIOR GEAR PUMP WITH ADJUSTABLE DELIVERY VOLUME

OIL PUMP OF VARIABLE ACHIEVEMENT.

POWER TRANSMISSION

Mass balancing system with a lubricating oil pump for reciprocating engines

VARIABLE DISPLACEMENT GEROTOR PUMP

... 7.006 VARIABLE DISPLACEMENT GEROTOR PUMP A gerotor pump or rotary fluid power transmission having a displacement control device for changing the volume of fluid delivered. The displacement control device operates by changing the eccentric position between the inner and outer rotors. The inlet and outlet ports of the pump are kept separate to maintain a unidirectional flow from the inlet to the outlet port across open mesh crossover zone. The closed mesh crossover zone is moved relative to the open mesh crossover zone and maintains separation between the inlet and outlet ports. As the eccentric position of the outer rotor relative to the inner rotor is changed, the volume of fluid transferred from the inlet port to the outlet port over the open mesh crossover zone is varied between a minimum and maximum amount. In one embodiment, the displacement control device is manually shifted. In another embodiment the deplacement control device is hydraulically shifted to control the displacement of ...

POWER TRANSMISSION

Rotationsmaschine, die als Pumpe oder als Motor ausgebildet ist

Hydraulisches Getriebe.

ALS PUMPE ODER MOTOR VERWENDBARE ZELLENMASCHINE.

DEVICE FORMING PUMP

L'invention concerne un dispositif formant pompe. Dans ce dispositif applicable à un appareil de direction assistée, un élément de pompe (10) est logé dans un boîtier de pompe et est configuré pour drainer une huile de travail, un moteur électrique (11) est configuré pour entraîner l'élément de pompe, un réservoir (12) est installé sur le boîtier et est configuré pour tenir en réserve l'huile de travail fournie à l'élément de pompe, un passage (8,9) est formé dans le boîtier de pompe et est relié à l'élément de pompe, et une soupape de commande (15) est installée dans le boîtier de pompe, est configurée pour communiquer avec le passage, et est configurée pour régler l'écoulement de l'huile de travail amenée à s'écouler à travers le passage. L'invention est applicable notamment dans le domaine de l'automobile.

HYDRAULIC PUMP MOTOR

VARIABLE?CAPACITY SLIDING?VANE PUMP

DELIVERY UNIT

Delivery units are already known which have a drive rotor and an output rotor driven by the drive rotor, which are supported in a housing, interact in a meshing manner through a spur toothing in each case and draw fluid through at least one inlet and push said fluid out through an outlet, wherein the inlet and the outlet are separated from each other by two separating webs. In order to control the flow rate through the delivery unit, a rotational speed control, a bypass control, or, for gases, a suction throttling, for example, can be carried out. A rotational speed control is energy efficient, but very expensive, because an electric motor must be used, the rotational speed of which can be controlled. In the bypass control, the fluid is delivered from the outlet through a bypass back to the inlet, which however is energetically unfavorable and connected to hydraulic losses. The delivery unit according to the invention is improved in such a way that on the inlet side the flow rate can be ...

Positive displacement, variable delivery pumping apparatus

A primary vane pump has a rotor with vanes, and an intermediate casing, which is also rotatable, both mounted in a fixed housing. The rotor vanes are enclosed in the casing and provide a primary pumping stage. The rotatable intermediate casing has outer vanes enclosed within the fixed housing, which provide a governor stage vane pump when the casing rotates. An inlet annulus supplies fuel to passages in the rotatable casing leading to the primary pumping stage and other passages in the rotatable casing conduct pumped fluid out to a discharge annulus. A closed fluid loop is established from discharge annulus to the governor stage vane pump, out through a valve and back to the discharge annulus. The reaction on the casing caused by the primary pump rotor tends to rotate the intermediate casing, while pressure drop through the valve in the closed fluid loop resists rotation. Adjustment of the valve adjusts rotational speed of the intermediate casing and varies the delivery rate of fuel by ...

Bi-directional pump

LUBRICANT VANE PUMP

Ротационная пластинчатая машина

РОТАЦИОННАЯ ПЛАСТИНЧАТАЯ МАШИНА, имёкицая корпус с торцовыми крышкаьв, входньм и выходным патрубками , ротор с подвижными пластинами и радиапьнш4И сквозными отверстиями , эксцентрично размещен- ный в расточке корпуса и разделяющий ее на полости высокого и низкого давлений, и регулятор производительности , выполненный в виде золотника , установленного с возможностью осевого перемещения в роторе, о тличающаяся тем, что, с целью повьшения экономичности регулирования , золотник снабжен радиальным сквозным каналом и диаметрально расположенными на его боковой поверхности фигурньада пазами, сообщенными между собой при помощи упомянутого канала. (Л с ...

Устройство для регулирования произволительности винтовой машины

OIL PUMP

IMPROVEMENTS RELATING TO PUMPS

A variable output pump is of the gerotor type with a multi-lobed rotor meshed internally of an annulus with one extra lobe, the rotor comprising two parts axially arranged end-to-end and one of which is arranged to be phase shifted by relative rotation. After a 180 degree shift (Figure 5) the chambers formed between the rotors and annulus will comprise one axial part between rotor 10 and annulus 16 which is at maximum volume whilst the adjacent and communicating part between rotor 12 and the annulus will be at minimum volume and hence the pump will be in zero output condition. When both rotor parts are phase synchronised the pump is in maximum output condition; it can be turned to any intermediate position. <IMAGE>

Vane pumps

A sliding-vane pump comprises a rotor 21 carrying vanes 22 and which is rotatable clockwise (as shown) about an axis 31 in a housing 1 providing a portion of a vane running path along which the radially outer edges of the vanes slide, a body 32 providing the remainder of said path, this remainder being of non-constant radius relative to said axis, an inlet port 4, and an outlet port 5, the body 32 being movable circumferentially of the housing and the rotor so as to vary the output. ...

OELPUMPE.

VARIABLE VOLUME FLOW INTERNAL GEAR PUMP

PUMP WITH CONTROL SYSTEM INCLUDING A CONTROL SYSTEM FOR DIRECTING DELIVERY OF PRESSURIZED LUBRICANT

Provided is a variable displacement vane pump with a control slide and a first and second control chambers. Also, the pump has a control system for controlling delivery of pressurized lubricant to the chambers. The control system includes a control device configured for movement between at least a first control position and a second control position. The control device may include its own housing and/or include discs configured for relative movement. The pivot pin may include grooves for delivering a flow from the outlet to the control system. In the first control position, pressurized lubricant is delivered to the first control chamber and the second control chamber is vented, which increases the output flow of the pump. In the second control position, pressurized lubricant is delivered to the second control chamber and the first control chamber is vented, which decreases the output flow of the pump.

GAS RESTRICTOR FOR PUMP

An inlet apparatus for a well pump.

Improvements brought to the combined gears machines

ЖИДКОСТНО-КОЛЬЦЕВАЯ МАШИНА

Жидкостно-кольцевая машина с автоматическим регулированием проходного сечения нагнетательного окна, содержащая корпус, торцевые крышки со всасывающим и нагнетательным окнами для газовой среды и установленным с эксцентриситетом валом, на котором расположено рабочее колесо, при этом нагнетательное окно снабжено заслонкой, механизмом регулирования положения заслонки, состоящим из поршня с возвратной пружиной и штока, соединяющего заслонку с поршнем, и трубопроводом, соединяющим зону всасывания с механизмом регулирования с возможностью создания разряжения над поршнем, отличающаяся тем, что отвод жидкости осуществляется через дополнительное окно, расположенное в зоне сжатия, оснащенное механизмом регулирования проходного сечения, включающего заслонку, электромеханический привод и орган управления.

Zahnringpumpe mit Exzenterverstellung

Zahnringpumpe mit Fördervolumenverstellung, die Pumpe umfassend: DOLLAR A a) ein Gehäuse (1, 2), DOLLAR A b) einen von dem Gehäuse (1, 2) aufgenommenen, drehbar gelagerten äußeren Rotor (5), der eine Innenverzahnung (5i) aufweist, DOLLAR A c) einen drehbar gelagerten inneren Rotor (4), der eine Außenverzahnung (4a) aufweist, die mit der Innenverzahnung (5i) in einem kämmenden Zahneingriff steht, wobei die Innenverzahnung (5i) wenigstens einen Zahn mehr aufweist als die Außenverzahnung (4a) und die Innenverzahnung (5i) und die Außenverzahnung (4a) gegeneinander abgedichtete, expandierende und komprimierende Förderzellen (7) bilden, DOLLAR A d) im Gehäuse (1, 2) seitlich im Bereich der Förderzellen (7) angeordnete Niederdruck- und Hochdrucköffnungen, die durch Stege voneinander getrennt sind, DOLLAR A e) einen Exzenterring (11), der in dem Gehäuse (1, 2) um eine Exzenterringdrehachse (4') drehbar gelagert ist und einen der Rotoren (4, 5) um eine Rotordrehachse (5') drehbar lagert, wobei die ...

Volumenstromvariable Rotorpumpe

Volumenstromvariable Rotorpumpe, mit einem einen Sauganschluss (48) und einen Druckanschluss (50) aufweisenden Pumpengehäuse (20), einem im Gehäuseinneren drehbar gelagerten, innenverzahnten Außenrotor (30) und einem an diesem exzentrisch gelagerten, außenverzahnten Innenrotor (28), der von einer im Pumpengehäuse (20) gelagerten Antriebswelle (26) antreibbar ist, wobei zur Änderung des Volumenstromes im Gehäuseinneren ein relativ zu Außen- und Innenrotor (30, 28) um die Achse (24) auf der Antriebswelle (26) verdrehbares Einstellglied (54) vorgesehen ist, dadurch gekennzeichnet, dass das scheibenförmig ausgebildete Einstellglied (54) zwischen den Rotoren (28, 30) und den gehäuseseitigen Saug- und Druckanschlüssen (48, 50) angeordnet und axial von zwei einander gegenüberliegenden und mit jeweils einem der Anschlüsse (48, 50) in Verbindung stehenden Verbindungsöffnungen (56, 58) durchsetzt ist und dass durch Verdrehen des Einstellgliedes, (54) aus seiner Nulllage einer der gehäuseseitigen ...

ADJUSTABLE VANE PUMP.

TRANSMISSION PUMP AND PROCEDURE FOR THE EXPENDITURE FOR LIQUID OF MEANS OF SUCH A PUMP

POSITIVE-DISPLACEMENT PUMP WITH PROMOTION VOLUME ADJUSTMENT

HYDRAULIC PUMP MOTOR

Fuel delivery system of an internal combustion engine, comprising a rotary pump

The invention relates to a fuel delivery system (16) of an internal combustion engine, comprising a rotary pump (22) that pumps fuel from a low-pressure region (17) into a high-pressure region (25), said rotary pump (22) having at least one inlet section (42) on the low-pressure side and at least one outlet section (44, 46) on the high-pressure side. The system also comprises a controllable valve device (32) that lies between the inlet section (42) on the low-pressure side and the low-pressure region (17) for controlling the delivered fuel flow. The rotary pump (22) comprises at least two outlet sections (44, 46) which lie one behind the other when seen in the direction of rotation and which are separate from each other, and at least one front outlet section (44), when seen in the direction of rotation, can be hydraulically connected or disconnected.

Gear pump with adjustable capacity

Шиберный насос

OELPUMPE.

Gerotorpumpe mit veränderlicher Förderleistung

Eine Gerotorpumpe veränderlicher Förderleistung weist äußere und innere angetriebene und antreibende Rotoren sowie einen ringförmigen Förderleistungsregelring auf, der in einer in dem Pumpengehäuse angebrachten Bohrung drehbar ist, um so die Arbeitsmediummenge, die von der Einlassöffnung zur Auslassöffnung der Pumpe geleitet wird, zu ändern. Dies ist insbesondere für das Regeln der Fördermenge von Schmieröl brauchbar, das in einer Brennkraftmaschine verwendet wird.

Improvements in Rotary Pumps.

... 7464. Hammer, L. March 29. Fixed - abutment type; regulating pumps; packing drums &c.-Relates to rotary pumps of the type in which the rotor is mounted eccentrically within its casing and is provided with radially sliding vanes, and consists in applying to such pumps the principle of an inner casing functioning as a valve for the purpose of varying the delivery. On the driving-shaft 1, Figs. 1 and 3, of the system, three drums 2<1>, 2, 2<1> are mounted carrying sliding vanes 3, the volume of each of the side drums 2<1> being half the volume of the middle drum 2. The drums 2', 2, 2<1> are surrounded by guide cylinders 4<1>, 4, 4<1> arranged eccentrically to the drums, the eccentricity of the middle guide cylinder 4 being arranged exactly opposite to that of the side cylinders 4<1>, 4<1>. The guide cylinders are adjustably mounted in the outer casings 5<1>, 5, 5'. The outer casings have each two zones D, d, D', d<1>, located opposite each other, between which the ducts 6, 7 extend to the ...

Improved internal gear pump

... 1,137,908. Internally-meshing gear pumps. STOTHERT & PITT Ltd. March 21, 1967 [Dec. 21, 1965], No.54072/65. Heading F1F. An internally-meshing gear pump comprising a casing 21, Figs. 1, 2, having inlet and outlet ports 24, 25, an outer rotor 32 driven by a shaft 35 having inwardly directed teeth 33 in mesh with outwardly directed teeth 41 of an inner rotor 40 eccentric with respect to the outer rotor and freely mounted on a shaft 43 and a liner 27 having openings 29 coinciding with the ports 24, 25 and diametrically opposite tongues 30 separating the ports 24, 25 from each other, includes means whereby the position of eccentricity of the inner rotor relative to the outer rotor may be varied to vary pump output and reverse the direction of flow through the pump. The means comprise a handle 45 secured to a portion of the shaft 43 concentric with the driving shaft 35 and turnable either manually or by a servomotor through 180 degrees. In Fig. 3, the handle 45 is positioned in which the minimum ...

STEPLESSLY ADJUSTABLE ONE ANNULAR GEAR PUMP

GAS RESTRICTOR FOR PUMP

An inlet apparatus for a well pump.

POWER TRANSMISSION

POWER TRANSMISSION ABSTRACT A variable displacement vane pump is provided in which a pair of rings having oval-shaped inner contours are rotatably mounted in side-by-side relationship. The rings are adapted for relative rotation to each other from a first position wherein the inner contours are in register with each other and a moved position wherein the inner con-tours are out-of-register, and means are provided for effecting the relative rotation, which include a gear sys-tem operatively connected to the rings. A rotor member is mounted for rotation within the rings and is formed with a plurality of circumferentially spaced recesses which extend the entire axial length of the rotor. Each of the recesses carries a pair of vanes in abutting relationship. The vanes are mounted for radial movement in the recesses and are adapted for slidable contact with the inner contours of the rings. The vanes form two side-by-side rows of vanes with each row in tracking relationship with the inner contours or the rings. With the inner contours rotated to the first position, rotation of the vanes will pump a maximum volume of fluid through the pump and with the inner contours rotated to the moved position, the vanes will pump a reduced volume of fluid through the pump.

PUMP WITH CONTROL SYSTEM INCLUDING A CONTROL SYSTEM FOR DIRECTING DELIVERY OF PRESSURIZED LUBRICANT

Provided is a variable displacement vane pump with a control slide and a first and second control chambers. Also, the pump has a control system for controlling delivery of pressurized lubricant to the chambers. The control system includes a control device configured for movement between at least a first control position and a second control position. The control device may include its own housing and/or include discs configured for relative movement. The pivot pin may include grooves for delivering a flow from the outlet to the control system. In the first control position, pressurized lubricant is delivered to the first control chamber and the second control chamber is vented, which increases the output flow of the pump. In the second control position, pressurized lubricant is delivered to the second control chamber and the first control chamber is vented, which decreases the output flow of the pump.

INFINITELY VARIABLE RING GEAR PUMP

An infinitely variable ring gear pump comprising a stationary casing, an internal rotor (3) in said casing rotatably supported and driven by means of a shaft (2) and an external rotor (4) likewise rotatably supported, meshing with the internal rotor (3), the difference in the number of teeth of the gear ring running set comprising the internal rotor (3) and the external rotor (4) being equal to unity, having a tooth shape in which a plurality of expanding and contracting displacement cells (7) each sealed off from the other materializes due to tooth tip contact and kidney-shaped low and high-pressure ports (8,9) fixedly arranged laterally in the region of the displacement cells (7) being provided in the casing, the ports (8,9) being separated from each other by webs (10,11) and the angular position of the eccentric axis (eccentricity 17) of the ring gear running set (5) being variable relative to the casing. The support (12) of the external rotor (4) of the ring gear running set (5) occurs ...

Improvements with the machines with combined gears and their applications

Hydraulic mechanism working uninterrupted

PRE-COMPRESSION RELIEF PORTING FOR POSITIVE DISPLACEMENT PUMPS

A positive displacement pump having a pump element having at least one variable volume displacement chamber, and a relief passage for relieving pressure from the displacement chamber when the displacement chamber is decreasing in volume and is not in communication with an intake or discharge port. A valve member, such as a reed valve, is provided to regulate flow through the relief passage.

PUMP WITH CONTROL SYSTEM INCLUDING A CONTROL SYSTEM FOR DIRECTING DELIVERY OF PRESSURIZED LUBRICANT

Provided is a variable displacement vane pump with a control slide and a first and second control chambers. Also, the pump has a control system for controlling delivery of pressurized lubricant to the chambers. The control system includes a control device configured for movement between at least a first control position and a second control position. The control device may include its own housing and/or include discs configured for relative movement. The pivot pin may include grooves for delivering a flow from the outlet to the control system. In the first control position, pressurized lubricant is delivered to the first control chamber and the second control chamber is vented, which increases the output flow of the pump. In the second control position, pressurized lubricant is delivered to the second control chamber and the first control chamber is vented, which decreases the output flow of the pump.

Zahnradpumpe

Entspannungsventil

Entspannungsventil (1) mit: einem Ventilsitz (6), der eine Sitzbohrung (6B) aufweist; einer Kugel (5), die die Sitzbohrung (6B) an ihrer stromabwärts liegenden Seite öffnet oder verschließt; einem bewegbaren Teil (4), das die Kugel (5) an der stromabwärts liegenden Seite lagert; einem Gehäuseteil (7), das das bewegbare Teil (4) aufnimmt; und einer Öffnung, die stromabwärts der Sitzbohrung (6B) ausgebildet ist und welche die Vibration des bewegbaren Teiles (4) dämpft und Rattern durch Einschränkung einer Ölströmung unterdrückt, wobei die Außenumfangsfläche des bewegbaren Teil (4) vollständig an der Innenumfangsfläche des Gehäuseteiles (7) gleitet; und die Öffnung als Durchgangsbohrung (84) ausgebildet ist, welche sich durch das bewegbare Teil (4) erstreckt; und wobei das Entspannungsventil (1) eine Rückstellfeder (3) aufweist, die an dem bewegbaren Teil (4) angeordnet ist; und Absenkungen (83) in dem bewegbaren Teil (4) auf jener Seite ausgebildet sind auf welcher sich die Rückstellfeder ...

ROTARY POSITIVE-DISPLACEMENT PUMPS

VARIABLE CAPACITY VANE PUMP

VARIABLE DISPLACEMENT GEROTOR PUMP

Lubricating oil pump

本发明涉及用于向内燃机提供加压润滑油的润滑油叶片泵(10)。该润滑油叶片泵(10)具有泵外壳(12)和泵转子(30)，其中泵转子(30)具有在可移位控制环(28)中转动的可径向滑动的叶片(32)，所述可移位控制环包封具有从充填区域(22)转动至排放区域(24)的多个转动的泵隔室(19 1 ‑19 7 )的泵室(18)。预拉伸元件(74)将控制环(28)推向高泵送量方向。控制室(54)中的高润滑油压力导致控制环(28)抵着预拉伸元件(74)移动到低泵送量方向。泵出油腔(14)流体连接到控制室(54)。控制环(28)具有泄压阀(52、52’)，其被结合到控制环(28)中并且在限定的连接条件下使控制室(54)与在充填区域(22)和排放区域(24)之间的泵隔室(19 1 )连接或与其断开连接。

Rotary hydraulic machine with variable flow

Infinitely variable ring gear pump

An infinitely variable ring gear pump comprising a stationary casing, an internal rotor (3) in said casing rotatably supported and driven by means of a shaft (2) and an external rotor (4) likewise rotatably supported, meshing with the internal rotor (3), the difference in the number of teeth of the gear ring running set comprising the internal rotor (3) and the external rotor (4) being equal to unity, having a tooth shape in which a plurality of expanding and contracting displacement cells (7) each sealed off from the other materializes due to tooth tip contact and kidney-shaped low and high-pressure ports (8, 9) fixedly arranged laterally in the region of the displacement cells (7) being provided in the casing, the ports (8, 9) being separated from each other by webs (10, 11) and the angular position of the eccentric axis (eccentricity 17) of the ring gear running set (5) being variable relative to the casing. The support (12) of the external rotor (4) of the ring gear running set (5) ...

MASCHINE MIT VARIABLER VERDRAENGUNG

Oil pump for IC-engine lubrication feed - has internally and externally toothed rotors with switching valve to connect outlets

The oil pump for the lubrication of a combustion engine has a housing (1), an inlet (9) and first and second outlets (10 11), with internally and externally toothed rotors (3 4) arranged to form chambers (5) having variable volume. The first outlet (10) is arranged with respect to the direction of flow in the pump behind the second outlet and a switching valve (19) serves to join the two outlets if the pressure in the first outlet is lower than a preset value, and to join the second outlet with the inlet if pressure exceeds the preset value. ADVANTAGE - Oil pump of simple construction and compact size which is economical to manufacture.

Variable flow volume rotary pump has adjusting ring rotatable by at least one flat piston protruding from its periphery and pressurized with self-regulation by system pressure prevailing at pressure connection of pump

The variable flow volume rotary pump includes an adjusting ring (22) rotatably mounted on a drive shaft (26) and designed to change the flow volume in the pump casing (20). The adjusting ring is rotatable by at least one flat piston (66) protruding from its periphery. The flat piston is pressurized with self-regulation by the system pressure prevailing at the pressure connection of the pump. The adjusting ring may have two diametrally opposed flat pistons which have differently sized pressure faces.

OELFLUEGELZELLENPUMPE

VARIABLE OUTPUT OIL PUMP

Variable output oil pump

The invention provides a variable output pump of the gerotor type in which one rotor (16) meshes in two side by side annulii (14, 12) which can be aligned for maximum output and turned in opposite directions to be non-aligned for minimum output. The movement is effected by a gear train (20, 24, 29) displaced by a rack (40) which is hydraulically operated by pump pressure. Hence high pressure displaces the rack to result in lower output against lower pressure. A variation is described in which a control spool diverts fluid to either side of the piston according to need and this is displaced in one direction by the derived fluid pressure and in the other direction additionally by spring pressure transferred from the piston position by a lever system. This can give desired pump output/speed results at reduced power consumption.

VARIABLE DISPLACEMENT VANE PUMP

POWER TRANSMISSION

HYDRAULIC PUMP MOTOR

Pump variable-displacement and hydraulic fluid power of power, with progressive variation speed, by making application

Together with oil pump for engine

L'invention concerne un ensemble à pompe à huile. Elle se rapporte à un ensemble qui comprend une pompe à huile qui comporte un carter (1) ayant une lumière (9) d'entrée et deux lumières (10, 11) de sortie, et des rotors interne et externe dentés (3, 4) qui délimitent entre eux une série de chambres (5) de volume variable qui peuvent être raccordées aux lumières d'entrée et de sortie (9, 10, 11). Un dispositif de commande raccorde la première et la seconde lumière (10, 11) de sortie lorsque la pression à la première lumière de sortie est inférieure à une valeur prédéterminée, et raccorde la seconde lumière de sortie à la lumière d'entrée lorsque la pression à la première lumière de sortie est supérieure à la valeur prédéterminée. Application aux moteurs à combustion interne.

Internal gear pump

The internal gear pump includes: an inner rotor; an outer rotor that rotates by having predetermined eccentricity to a rotation center of the inner rotor; an outer ring that holds the outer rotor in a freely rotatable state, and is also formed with at least three cam protruded parts; a pump housing having a rotor chamber; protruded-wall surface parts that are formed on an inner periphery side surface of the rotor chamber and are also formed in the same number as that of the cam protruded parts; and operation means for oscillating the outer ring. A diameter center of the holding-inner peripheral part of the outer ring is moved by the operation means along a locus of a circle of which a radius is the eccentricity to the rotation center of the inner rotor.

Variable delivery vane pump

A primary vane pump suitable for an aircraft jet engine fuel pump has a rotor with vanes, and an intermediate casing, which is also rotatable, both mounted in a fixed housing. The rotor vanes are enclosed in the casing and provide a primary pumping stage. The intermediate casing has outer vanes enclosed with the fixed housing, which provide a governor stage vane pump when the casing rotates. An inlet annulus supplies fuel to passages in the rotatable casing leading to the primary pumping stage and other passages in the rotatable casing conduct pumped fluid out to a discharge annulus. A closed fluid loop is established from discharge annulus to the governor stage vane pump, out through a valve and back to the discharge annulus. The reaction on the casing caused by the primary pump rotor tends to rotate the intermediate casing, while pressure drop through the valve in the closed fluid loop resists rotation. Adjustment of the valve adjusts rotational speed of the intermediate casing and varies ...

VARIABLE OUTPUT ROTOR OIL PUMP

INTERNAL GEAR PUMP

PROBLEM TO BE SOLVED: To provide an internal gear pump with discharge pressure stabilized by equalizing pressure distribution in a clearance. SOLUTION: This internal gear pump is provided with: a first port and a second port which are formed on surfaces opposed to two or more pump houses formed between an outer rotor and an inner rotor; a first pressure introducing groove connecting a containment part side acting as the first port and having the maximum volume out of two or more pump chambers and a radial sliding surface between a housing inner peripheral surface and an outer rotor peripheral surface; and a second pressure introducing groove connecting the containment part side of the second port and the radial sliding surface. The first and second pressure introducing grooves extend in a direction far from the containment part with a connection part between the first and second ports as a base point, and are formed to be inclined to a tangent direction more than a radial outside. COPYRIGHT ...

Vane-type motor

A vane-type motor is disclosed including a rotor disposed in a housing having a plurality of cam rings surrounding the rotor, which cam rings are displaceable relative to one another in the circumferential direction. Vanes associated with the cam rings subdivide a work chamber provided between the rotor and the cam rings into work cells and side plates laterally confine the work chamber. An inlet channel supplies pressure fluid to the work chamber and a discharge channel provides for discharge of the pressure fluid from the work chamber. Control channels are provided to preclude pressure impacts and noises with the cam ring displaced. The control channels terminate in the work chamber and connect the work chamber to the inlet channel. The rotor forms a control element for the control channels.

INFINITELY VARIABLE RING GEAR PUMP

An infinitely variable ring gear pump comprising a stationary casing, an internal rotor (3) in said casing rotatably supported and driven by means of a shaft (2) and an external rotor (4) likewise rotatably supported, meshing with the internal rotor (3), the difference in the number of teeth of the gear ring running set comprising the internal rotor (3) and the external rotor (4) being equal to unity, having a tooth shape in which a plurality of expanding and contracting displacement cells (7) each sealed off from the other materializes due to tooth tip contact and kidney-shaped low and high-pressure ports (8,9) fixedly arranged laterally in the region of the displacement cells (7) being provided in the casing, the ports (8,9) being separated from each other by webs (10,11) and the angular position of the eccentric axis (eccentricity 17) of the ring gear running set (5) being variable relative to the casing. The support (12) of the external rotor (4) of the ring gear running set (5) occurs at the outer diameter (13) of the latter in an adjusting ring (14) preferably the same in width which is rollable with zero slip by its outer circumferential or pitch circle (15) on an inner circumferential or pitch circle (16). The difference in the diameters of the two circumferential or pitch circles (15,16) equals twice the eccentricity (17) of the ring gear running set (5).

An internal meshing cycloidal gear type hydraulic converter

FLUID ROTATING MACHINE GROUP WITH VARIABLE GEAR.

Rotating machine with variable fluid and variable flowrate with gearing

Automatic device of output control according to the pressure for rotary hydraulic machines with adjustable flow

Pumping fluid buffer of air pump

VOLUME FLOWRATE-VARIABLE ROTOR PUMP

Die Erfindung betrifft eine volumenstromvariable Rotorpumpe (1) mit einem einen Sauganschluss (3) und einen Druckanschluss (4) aufweisenden Pumpengehäuse (2), mit einem in einem Stellglied (7) aufgenommenen Aussenrotor (9) und mit einem exzentrisch im Aussenrotor (9) angeordneten, antreibbaren Innenrotor (10) mit Aussenverzahnung (l0a), wobei die Zähnezahl der Aussenverzahnung um eins grosser als die der Innenverzahnung ist, die Innen- und die Aussenverzahnung miteinander in Eingriff stehen und der Volumenstrom durch eine Lageveränderung des Stellgliedes (7) veränderbar ist. Es wird vorgeschlagen, dass der Aussenverzahnung (10a) eine Feinverzahnung (l0b) überlagert ist und die Innenverzahnung durch im Aussenrotor (9) aufgenommene, drehbar gelagerte, ebenfalls eine Feinverzahnung (11a) aufweisende Planentenrotoren (11) gebildet ist.

DISTRIBUTER PHASE SHIFTER FOR A HYDRAULIC PUMP MOTOR

The distributor phase shifter for a hydraulic pump motor () is provided for a hydraulic pump motor () which includes a pump motor housing () and a pump motor central rotor () to which an input-output distributor () presents an input-output angular collector of an internal conduit () and an input-output angular collector of an external conduit (), which phase shifter includes a phase shift acting element () which is supported on the housing of the pump motor () in order to make the input-output distributor () rotate around its longitudinal axis and over a determined angular range. 1300123141334344893214151657445889300. A distributor phase shifter for a hydraulic pump motor () provided for a hydraulic pump motor () which comprises a pump motor housing () on the one hand and a pump motor central rotor () on the other hand , which latter houses at least one hydraulic cylinder () in which a hydraulic piston () can move in translation , which central rotor () cooperates with an input-output distributor () which presents it with an input-output angular collector of an internal conduit () and an input-output annular collector of an external conduit () in such a manner that when this rotor () rotates relative to the pump motor housing () , the hydraulic cylinder () is alternately placed in relation—via an input-output internal canal of the central rotor () and then an input-output orifice of the central rotor () - with an input-output internal conduit () by the input-output annular collector of the internal conduit () , then with an input-output external conduit () by the input-output annular collector of the external conduit () , which phase shifter () is comprises:{'b': 301', '2', '43', '302', '43, 'At least one phase shift acting element () which is directly or indirectly supported on the pump motor housing () in order to be able to rotate the input-output distributor () around its longitudinal axis and over a determined angular range while acting directly or indirectly ...

Continuously variable annular gear pump

Flow rate controlled vane-cell pump has pressure regulating valve with additional control line connected to pressure side of pump, and to which is connected channel pressurizing internal chamber of rotor and vanes

The flow rate controlled vane-cell pump has a pressure regulating valve (16) which has an additional control line (ST) connected to the pressure side (4) of the pump, and to which is connected a channel (26) pressurizing the internal chamber of the rotor (9) and vanes (6) with supply pressure. This additional control line is opened before reaching the design supply pressure and closed after reaching it. The inflow to the additional control line is closed off dependent upon temperature by a two-way valve (36) controlled by an actuator (37).

Gear-wheel pump or motor of adjustable capacity or moving power

... 178,123. M÷hl, S. April 9, 1921, [Convention date]. Hydraulic transmission of power.-In rotary pumps of the type comprising intermeshing gearwheels 3, 4 immersed in the liquid to be pumped, the capacity is varied by adjusting the position of the delivery pipe 7 relative to the centre-line of the pump, the pipe 7 having its inlet orifice just above the engaging teeth, while a plate 6 seals the lower side of the teeth. The delivery pipe 7 may be pivoted and adjusted by worm-gear 14, 15, and a similar pipe may be substituted for the plate 6. For the same purpose, the distance between the gear-wheel shafts may be adjusted, this device being used in combination with the adjustable delivery pipe. Fig. 6 shows a modification wherein one of the gear-wheels 33 is internally toothed, the other 34 being mounted. on an eccentric 35 which can be moved round the shaft 2 to vary the relative position of the delivery orifice 37. Bevel gear-wheels 43, 44, Fig. 7, may be used with a delivery pipe 47, one ...

Improvements in or relating to rotary constant pressure variable displacement pumps

... 651,689. Rotary pumps. HOUDAILLE-HERSHEY CORPORATION, and HUFFERD, G. H. Nov. 30, 1948, No. 31024. Convention date, June 4. [Class 110(ii)] A constant delivery pressure pump of the outwardly-sliding vane type has rotary, hydraulic, means to vary the displacement of the pumping chambers. A rotatable member 25, eccentric to the pumping chamber, is moved by admitting liquid under pressure to one side of an abutment 35, in a chamber 34 under control of a valve 53 and relieving the other side. The vanes 22 are held outwards by means of rings 23 contained in recesses 24 in the rotor 15. Liquid enters the pumping chamber 27 through a segmental port 30 and forced through a discharge port 31. When the delivery increases beyond the mean rated pressure, the valve 53 moves against a spring 57 until a bleed-off groove 63 registers with a port 70 which leads through a bushing 54 to a duct 71, in a boss 50, leading to a bleed-off groove 43. This places chambers in pockets 34, that are fed by shallow ducts ...

Vehicular power transmitting system

A vehicular power transmitting system including an oil pump constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount of first and second high-pressure passages of the oil pump is determined such that an amount of consumption of working oil of relatively high pressure can be afforded only by the high-pressure-port discharge amount, during steady-state running of a vehicle in which engine speed is not lower than a predetermined threshold value corresponding to a predetermined lowest target input shaft speed of a continuously variable transmission for its shifting control. The pressure of the working oil discharged from first and second low-pressure discharge passages is kept at a predetermined low level, and the required drive torque of the oil pump is sufficiently reduced.

APPARATUS FOR A COUNTERBALANCE FOR AN ECCENTRIC MOTOR

A pump, comprising a rotor axially located between a fluid inlet section and a fluid outlet section, wherein the rotor is configured to rotate about a center axis, a stator surrounding the rotor, wherein the stator includes an inner diameter surface and an outer diameter surface, wherein the inner diameter surface includes a groove surrounding the stator and concentric about the center axis, and a ring surrounding the stator, wherein the ring is adjacent to the groove and defines a gap between an outer diameter of the surface and an inner surface of the ring, wherein the ring includes a ring mass and the stator includes a stator mass, and the ring mass is substantially equal to the stator mass. 1. A pump , comprising:a rotor axially between a fluid inlet section of the pump and a fluid outlet section of the pump, wherein the rotor is configured to rotate about a center axis;a stator surrounding the rotor; anda ring surrounding about the stator, wherein the ring has a ring mass and the stator has a stator mass, and the ring mass is substantially equal to the stator mass, wherein the ring is configured to rotate about the stator in response to a magnetic flux introduced into the stator.2. The pump of claim 1 , where in the pump further includes an air gap located between an inner diameter of the ring and an outer diameter of the stator.3. The pump of claim 2 , wherein a diameter of the air gap decreases when the magnetic flux is introduced into the stator.4. The pump of claim 2 , wherein the stator further includes a groove located on an outer diameter of the stator claim 2 , wherein a first surface of the groove faces an inner diameter of the ring.5. The pump of claim 1 , wherein the ring is concentric about the center axis.6. The pump of claim 1 , wherein the ring has a first polarity and the stator has a second polarity claim 1 , and the first and second polarity are opposite polarities.7. The pump of claim 1 , wherein the stator includes a plurality of legs claim ...

AUTOMATIC TRANSMISSION PUMP APPARATUS OR PUMP APPARATUS

The present invention provides a pump apparatus capable of preventing or reducing deterioration of efficiency of a pump. The pump apparatus includes a venturi portion provided on the way along a discharge passage. The venturi portion includes a small diameter portion having a smaller inner diameter than an inner diameter of the discharge passage from a discharge port to the venturi portion and an inner diameter gradually-increasing portion formed in such a manner that an inner diameter thereof gradually increases from the small diameter portion toward a downstream side of the discharge passage. The pump apparatus further includes a control valve configured to receive introduction of hydraulic fluid on an upstream side of the venturi portion and hydraulic fluid in the venturi portion. The control valve is configured to control a flow amount of hydraulic fluid to be supplied into an automatic transmission by switching a flow passage of the hydraulic fluid based on a differential pressure between a pressure on the upstream side of the venturi portion and a pressure in the venturi portion (). 1. An automatic transmission pump apparatus for supplying hydraulic fluid to an automatic transmission of a vehicle , the automatic transmission pump apparatus comprising:a pump housing including a pump element containing portion;a driving shaft pivotally supported on the pump housing;a pump element provided in the pump element containing portion and configured to be rotationally driven by the driving shaft, the pump element forming a plurality of pump chambers around the driving shaft;an intake port formed at the pump housing and opened to an intake region where a volume of a pump chamber increases according to a rotation of the driving shaft among the plurality of pump chambers;a discharge port formed at the pump housing and opened to a discharge region where the volume of the pump chamber reduces according to the rotation of the driving shaft among the plurality of pump chambers ...

FUEL PUMP

A fuel pump includes: an outer gear; an inner gear that is meshed with the outer gear and includes a receiving hole; a rotatable shaft; a contact portion that is formed to be contactable with the receiving hole; and a pump housing that rotatably receives the outer gear and the inner gear and includes a first housing component and a second housing component, between which the inner gear is held in the axial direction. At least one of the receiving hole and the contact portion includes a tilt surface, which is tilted relative to the axis direction. When the rotatable shaft is rotated to a drive rotation side, the receiving hole contacts the contact portion through the tilt surface, so that the receiving hole is urged in a circumferential direction and is also urged toward the first housing component in the axial direction. 1. A fuel pump comprising:an outer gear that includes a plurality of internal teeth;an inner gear that includes a plurality of external teeth and is meshed with the outer gear while the inner gear is eccentric to the outer gear in an eccentric direction, wherein the inner gear includes a receiving hole that extends in an axial direction;a rotatable shaft that is rotationally driven;a contact portion that is formed to be contactable with the receiving hole, wherein the contact portion transmits a drive force from the rotatable shaft to the receiving hole to rotate the inner gear; anda pump housing that rotatably receives the outer gear and the inner gear and includes a first housing component and a second housing component, between which the inner gear is held in the axial direction, wherein:when the outer gear and the inner gear are rotated to a drive rotation side to increase and decrease volumes of a plurality of pump chambers, which are formed between the outer gear and the inner gear, fuel is sequentially drawn into and is sequentially discharged from the plurality of pump chambers;at least one of the receiving hole and the contact portion ...

SCROLL COMPRESSOR WITH VARIABLE VOLUME RATIO PORT IN ORBITING SCROLL

A compressor may include a first scroll member, a second scroll member and a drive shaft. The first scroll member may include a first end plate defining a first discharge port and a first spiral wrap extending from the first end plate. The second scroll member may include a second end plate defining a first variable volume ratio port and a second spiral wrap extending from the second end plate and meshingly engaged with the first spiral wrap and forming compression pockets. The variable volume ratio port may be located radially outward relative to the first discharge port and in communication with a first compression pocket. The drive shaft may be engaged with the second scroll member and driving orbital displacement of the second scroll member relative to the first scroll member. 1. A compressor comprising:a first scroll member including a first end plate defining a first discharge port and a first spiral wrap extending from said first end plate;a second scroll member including a second end plate defining a first variable volume ratio port and a second spiral wrap extending from said second end plate and meshingly engaged with said first spiral wrap and forming compression pockets, said variable volume ratio port located radially outward relative to said first discharge port and in communication with a first compression pocket; anda drive shaft engaged with said second scroll member and driving orbital displacement of said second scroll member relative to said first scroll member.2. The compressor of claim 1 , wherein said second end plate defines a second discharge port and said first and second spiral wraps define a central discharge pocket in communication with said first and second discharge ports.3. The compressor of claim 2 , further comprising a variable volume ratio valve displaceable between a closed position and an open position claim 2 , said variable volume ratio valve isolating said variable volume ratio port from said discharge pocket when in the ...

PORTABLE FUEL PUMP

An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity. 1. A pump comprising:a rotor attached to a motor that rotates the rotor in first and second directions;wherein the rotor being located in a cavity;a plurality of vanes each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port;wherein the plurality of vanes each having an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe; andwherein each of the plurality of vanes includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.2. The pump of claim 1 , further comprising an inlet port that is selectively positionable with respect to the pump housing via fasteners.3. The pump of claim 2 , further comprising an outlet port that is selectively positionable with respect to the pump housing via fasteners.4. The pump of claim 1 , wherein relative positioning between the outlet port and the inlet port is selected from the group consisting of the inlet port being positioned coaxial with the outlet port claim 1 , the inlet port being positioned perpendicular to the outlet port claim 1 , and the inlet port being ...

SCREW PUMP

A screw pump comprises a body which has a cylindrical duct formed therein. A screw shaft is located in the cylindrical duct and is arranged to transport liquid between an inlet and an outlet of the screw pump. The screw shaft has a screw thread which defines a helical liquid path within the cylindrical duct. The body of the screw pump includes a groove extending along an inside surface of the cylindrical duct, the groove defining, in part, a ball-passage which extends alongside the screw shaft and intersects with the helical liquid path. The ball-passage contains a plurality of balls which are guided along the ball-passage by the screw thread when the screw shaft rotates relative to the body. 1. A screw pump comprising a body having a cylindrical duct formed therein , and a screw shaft located in the cylindrical duct arranged to transport liquid between an inlet and an outlet of the screw pump , the screw shaft having a screw thread defining a helical liquid path within the cylindrical duct ,characterised in that the body of the screw pump includes a groove extending along an inside surface of the cylindrical duct, the groove defining in part a ball-passage extending alongside the screw shaft and intersecting with the helical liquid path, the ball-passage containing a plurality of balls which are guided along the ball-passage by the screw thread when the screw shaft rotates relative to the body.2. A screw pump as claimed in claim 1 , wherein the balls divide the helical liquid path into a plurality of helical volumes claim 1 , and preferably wherein the balls act as valves to retard flow of the liquid between adjacent helical volumes.3. A screw pump as claimed in claim 1 , wherein the groove extends substantially parallel to an axial direction of the screw shaft claim 1 ,and/or wherein a return ball-passage, which connects a first end of the ball-passage with a second end of the ball-passage, is provided within the body of the screw pump.4. A screw pump as claimed ...

PUMP UNIT WITH INTEGRATED PISTON PUMP AND ELECTRIC MOTOR

An automotive hydraulic actuating system for actuating a movable vehicle part, like a roof part or a wheel suspension. The actuating system comprises a pump unit. The pump unit comprises a piston pump which has a pump rotor and an electric motor which has a motor rotor. The pump rotor and motor rotor are incorporated into a single common rotor. The rotor is a one piece item. The rotor is positioned inside a pump chamber around a pump stator of the piston pump. The pump stator provides a full support to the common rotor. Advantageously, without a separate motor stator, the pump unit has a more compact configuration. Additionally, the pump unit has an improved dynamic performance which contributes to a silent and reliable operation at a high rotational speed. 117-. (canceled)18. A pump unit for pressurising a hydraulic actuating system in particular for pressurising an automotive actuating system , like a convertible roof system , boot lid , hood cover system or wheel suspension of a vehicle , wherein the pump unit comprises a pump housing including a pump chamber for housing a piston pump and wherein the pump unit further comprises an electric motor for driving the piston pump , a motor rotor wherein the motor rotor comprises a longitudinal motor rotor body including several magnets at an outer surface, wherein the motor rotor body defines an axial axis;', 'a field coil which is positioned opposite the magnets of the motor rotor body for rotationally driving the motor rotor body;, 'wherein the electric motor comprises a pump stator which is stationarily positioned inside the pump chamber, which pump stator has a longitudinal stator body, in which the pump stator body includes at least two channels serving respectively as an inlet or outlet channel;', 'a pump rotor positioned around the pump stator body, which pump rotor has a pump rotor body which is driveable in a rotational direction about the axial axis, wherein the pump rotor body includes several cylinder holes ...

Dual Drive Vane Pump

A fluid pumping system for a vehicle having an internal combustion engine comprises a housing, an electric motor, a rotatable first input adapted to be driven by the internal combustion engine, a rotatable second input driven by the electric motor, and a pump. The pump includes a drum selectively rotated about a drum axis of rotation by one of the first input and the second input, and a pump rotor selectively rotated by the other of the first input and the second input. The drum includes a cam ring having a cavity in receipt of the pump rotor. The drum includes a first fluid inlet port and a second fluid inlet port on opposite sides of the drum such that fluid entering the cavity through the first and second fluid ports flows axially in a direction parallel to the drum axis of rotation. The drum includes a radially extending outlet port such that pumped fluid flows radially out of the cavity. The housing contains the electric motor and the pump.

LUBRICANT VANE PUMP

A lubricant vane pump for providing a pressurized lubricant for an internal combustion engine includes a pump housing enclosing a pumping cavity comprising a charge zone and a discharge zone. A shiftable control ring envelops the pumping cavity. A pump rotor comprising vanes divides the pumping cavity into pumping chambers. The pump rotor is radially slidable and rotates in the control ring from the charge zone to the discharge zone. A spring chamber comprises a pretensioning element which pushes the control ring to a high pumping volume direction. A control chamber is configured so that a lubricant pressure in the control chamber moves the control ring to a low pumping volume direction against a force of the pretensioning element. A pumping cavity outlet port is connected to the control chamber. A pressure equilibration channel drains the lubricant from the pumping chamber in the discharge zone into the spring chamber.

VARIABLE DISPLACEMENT LUBRICANT PUMP

A variable displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine includes a control ring configured to be shiftable, a pump rotor comprising a plurality of slidable vanes which are configured to rotate in the control ring, a hydraulic control chamber configured to directly actuate the control ring, a valve bore, and a temperature control valve configured to connect or disconnect the temperature control opening to an atmospheric pressure. The hydraulic control chamber comprises a side wall comprising a temperature control opening arranged therein. The temperature control valve comprises a switching strip which comprises a switching temperature. The switching strip is configured to be in an open position if a temperature is below the switching temperature, and to be in a closed position if the temperature is above the switching temperature so as to close the valve bore. 110-. (canceled)11. A variable displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine , the variable displacement lubricant pump comprising:a control ring configured to be shiftable;a pump rotor comprising a plurality of slidable vanes which are configured to rotate in the control ring;a hydraulic control chamber configured to directly actuate the control ring, the hydraulic control chamber comprising a side wall comprising a temperature control opening arranged therein;a valve bore; anda temperature control valve configured to connect or disconnect the temperature control opening to an atmospheric pressure, the temperature control valve comprising a switching strip which comprises a switching temperature, the switching strip being configured to be in an open position if a temperature is below the switching temperature, and to be in a closing position if the temperature is above the switching temperature so as to close the valve bore.12. The variable displacement lubricant pump as recited in claim 11 , wherein ...

Positive displacement pump with delivery volume adjustment

Verdrängerpumpe mit verstellbarem spezifischen Fördervolumen, umfassend: a) ein Gehäuse (3), das eine Förderkammer (4) enthält, in die an einer Niederdruckseite der Pumpe wenigstens ein Einlass (5) für Fluid und an einer Hochdruckseite der Pumpe wenigstens ein Auslass (6) für Fluid münden, b) wenigstens zwei in der Förderkammer (4) aufgenommene, drehantreibbare Förderräder (1, 2), die miteinander in einem Fördereingriff sind, um das Fluid von dem Einlass (5) zu dem Auslass (6) zu fördern, wobei die Förderräder (1, 2) so verstellbar sind, dass durch eine Verstellung der Förderräder (1, 2) relativ zueinander oder relativ zu dem Einlass (5) und/oder dem Auslass (6) das spezifische Fördervolumen der Pumpe verstellt wird, c) einen Kolben (7/8; 25), der für die Verstellung der Förderräder (1, 2) mit wenigstens einem der Förderräder (1, 2) gekoppelt ist, d) einen ersten Druckraum (9) und einen zweiten Druckraum (10) für eine Beaufschlagung des Kolbens (7/8;... Displacer pump with adjustable specific delivery volume, comprising: a) a housing (3) containing a delivery chamber (4) into which at least one inlet (5) for fluid at a low pressure side of the pump and at least one outlet (6) for fluid at a high pressure side of the pump, b) at least two rotatably drivable conveying wheels (1, 2) accommodated in the conveying chamber (4), which are in a conveying engagement with one another to convey the fluid from the inlet (5) to the outlet (6), the conveying wheels (1 , 2) are adjustable so that by an adjustment of the conveyor wheels (1, 2) relative to each other or relative to the inlet (5) and / or the outlet (6), the specific delivery volume of the pump is adjusted, c) a piston (7/8; 25), which is coupled for the adjustment of the conveyor wheels (1, 2) with at least one of the conveyor wheels (1, 2), d) a first pressure chamber (9) and a second pressure chamber (10) for acting on the piston (7/8;

体积流量可变的转子泵

本发明涉及一种体积流量可变的转子泵，它具有一个设有吸入接口及一个压力接口的泵壳体，一个可转动地支承在壳体内部的、带内齿的外转子及一个偏心地支承在该外转子中的、带外齿的内转子，该内转子可由一个在泵壳体中与外转子轴平行地支承的驱动轴驱动，其中为了改变体积流量，在泵壳体中设有一个与驱动轴同轴心地支承的、可转动的调节环，外转子偏心地且可转动地支承在该调节环中，其中在压力接口与吸入接口之间的转动方向上看设有一个可改变这些接口中至少一个的大小的滑移件。

Infinitely variable ring gear pump

본 발명의 무한 가변 링 기어 펌프는, 고정 케이싱과, 상기 고정 케이싱 내에 회전 가능하게 지지되어 구동축에 의해 피동되는 내부 로우터와, 같은 방식으로 회전 가능하게 지지되어 상기 내부 로우터와 맞물리는 외부 로우터를 포함하며, 단일체에 가깝게 구성된 상기 내부 및 외부 로우터를 포함하는 기어 링 구동 세트의 톱니 수의 차이는, 서로 차단되어 연장되거나 수축되는 변위 셀이 톱니 팁의 접촉에 의해 형성되는, 톱니 형상부를 구성하도록 되며, 상기 변위 셀의 영역에서 측방으로 고정 배열되는 콩팥 형상의 저압 및 고압 포트가 상기 케이싱 내에 제공되고, 상기 포트는 웨브에 의해 서로 분리되며, 상기 링 기어 구동 세트의 편심축의 각 위치 (편심거리)는 상기 케이싱에 대해 가변적이다. 여기서, 상기 링 기어 구동 세트의 외부 로우터의 지지부는, 내주원, 즉 피치 원에 접하는 외주원, 즉 피치 원에 의해 제로(zero)의 슬립률로 회전 가능한 조절 링 내에서 바람직하게는 동일한 폭으로 링 기어 구동 세트의 외경부에 형성되어 있으며, 상기 2개의 내외주원, 즉 피치 원들의 직경 차이는 상기 링 기어 구동 세트의 편심거리의 2배에 해당된다. The infinitely variable ring gear pump of the present invention includes a fixed casing, an inner rotor rotatably supported in the fixed casing and driven by a drive shaft, and an outer rotor rotatably supported in such a manner as to engage the inner rotor. And the difference in the number of teeth of the gear ring drive set including the inner and outer rotors configured close to the monolith is such that the displaced cells which are blocked and extended or contracted with each other are formed by the contact of the tooth tips. Low-pressure and high-pressure ports of the kidney shape, which are laterally fixedly arranged in the region of the displacement cell, are provided in the casing, the ports being separated from each other by a web, each position of the eccentric shaft of the ring gear drive set (eccentric distance) Is variable for the casing. Here, the support of the outer rotor of the ring gear drive set is preferably of the same width in the adjustment ring rotatable at zero slip rate by the inner circumferential circle, ie the outer circumferential circle contacting the pitch circle, ie the pitch circle. It is formed in the outer diameter portion of the ring gear drive set, the diameter difference between the two inner and outer circumference, that is, the pitch circles corresponds to twice the eccentric distance of the ring gear drive set.

Balanced pressure, variable displacement, dual lobe, single ring, vane pump

A pump including a pressure plate having two inlets and outlets, wherein each inlet has an auxiliary intake port in fluid communication with the inlet, and each outlet has an auxiliary discharge port in fluid communication with the outlet, and a cam/rotor assembly attached to the pressure plate. The cam/rotor assembly includes a rotatable cam having an opening, a rotor within the cam opening, the rotor having multiple radial slots, and multiple vanes that move within the slots, wherein a pumping chamber is defined by a space between rotor and cam. Rotor rotation within the cam causes the vanes to extend and retract within the pumping chamber. The movement of the vanes discharges into the outlets and auxiliary discharge ports a fluid drawn into the pumping chamber via inlets and auxiliary intake ports. The auxiliary inlet and auxiliary discharge ports reduce pressure pulsations in a variable displacement dual-lobe vane pump.

Screw pumps arrangement

Offenbart ist eine Schraubenspindelpumpenanordnung mit einem Niederdruckanschluss, einem Hochdruckanschluss, einer Antriebsspindel und zumindest einer Laufspindel. Eine Förderstrecke der Laufspindeln ist in zwei Förderabschnitte teilbar, die entweder parallel oder in Reihe betrieben werden können. Dadurch ist mit geringem Aufwand eine Schraubenspindelpumpenanordnung geschaffen, bei der ohne Regelungstechnik zwei Betriebszustände wählbar sind. In einem mittleren Bereich der Förderstrecke sind zwei durch eine Verbindungsleitung verbindbare Abgriff-Anschlüsse vorgesehen. Die Verbindungsleitung kann abgesperrt werden, und dabei können der niederdruckseitige Abgriff-Anschluss mit dem Hochdruckanschluss und der hochdruckseitige Abgriff-Anschluss mit dem Niederdruckanschluss verbunden werden. Durch die offene Verbindungsleitung ist eine Reihenschaltung (höherer Druck geringerer Volumenstrom) gegeben, die einer Schraubenspindelpumpe gemäß dem Stand der Technik entspricht. Bei der abgesperrten Verbindungsleitung und den gleichzeitigen oben genannten Druckmittelströmungspfaden kann die Schraubenspindelpumpenanordnung einfach in der Parallelschaltung (niedrigerer Druck höherer Volumenstrom) betrieben werden. Disclosed is a screw pump arrangement with a low-pressure connection, a high-pressure connection, a drive spindle and at least one running spindle. A conveyor line of the spindles is divisible into two conveyor sections, which can be operated either in parallel or in series. As a result, a screw pump arrangement is created with little effort, in which two operating states can be selected without control technology. In a central region of the conveyor line two connectable by a connecting line tap connections are provided. The connection line can be shut off, and the low-pressure-side tap connection to the high-pressure connection and the high-pressure-side tap connection can be connected to the low-pressure connection. Through the open connection line a series connection ( ...

Screw spindle pump arrangement

The invention relates to a screw spindle pump arrangement having a low-pressure connection, a high-pressure connection, a drive spindle, and at least one idling spindle. A feed section of the idling spindles can be divided into two feeding segments that can be driven either in series or in parallel. A screw spindle pump arrangement is thereby created with little effort, wherein two operating modes can be selected without controls technology. Two tap connections that can be connected by a connecting line are provided in a center area of the feed section. The connecting line can be blocked and the low-pressure side tap connection can thereby be connected to the high-pressure connection, and the high-pressure side tap connection can be connected to the low-pressure connection. A series circuit (high pressure, low volume flow rate) is created by the open connecting line, corresponding to a screw spindle pump according to the prior art. With the connecting line blocked, and the simultaneous pressure medium flow paths indicated above, the screw spindle pump arrangement can be simply operated as a parallel circuit (low pressure, high volume flow).

Oil pump

내용 없음. No content.

Variable displacement lubricant pump for an internal combustion engine with a temperature control valve

A variable displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine includes a control ring configured to be shiftable, a pump rotor comprising a plurality of slidable vanes which are configured to rotate in the control ring, a hydraulic control chamber configured to directly actuate the control ring, a valve bore, and a temperature control valve configured to connect or disconnect the temperature control opening to an atmospheric pressure. The hydraulic control chamber comprises a side wall comprising a temperature control opening arranged therein. The temperature control valve comprises a switching strip which comprises a switching temperature. The switching strip is configured to be in an open position if a temperature is below the switching temperature, and to be in a closed position if the temperature is above the switching temperature so as to close the valve bore.

Variable displacement lubricant pump

Variable displacement lubricant pump

Variable displacement lubricant pump (10) for providing pressurized lubricant for an internal combustion engine (70), comprising • a pump rotor with several slidable vanes (14) rotating in a shiftable control ring (12) actuated by a hydraulic control chamber (25) directly actuating the control ring (12), • a temperature control opening (26) located in a control chamber wall (27), • a temperature control valve (30) to connect or disconnect the temperature control opening (26), which control opening (26) is fluidly connected to a valve bore (40) of the temperature control valve (30), to atmospheric pressure, the temperature control valve (30) being provided with a switching strip (31) with a switching temperature, the switching strip (31) being in the open position if the temperature T is below the switching temperature T s , and in the closing position and thereby closing the valve bore (40), if the temperature T is above the switching temperature T s .

Lubricant vane pump

A lubricant vane pump for providing a pressurized lubricant for an internal combustion engine includes a pump housing enclosing a pumping cavity comprising a charge zone and a discharge zone. A shiftable control ring envelops the pumping cavity. A pump rotor comprising vanes divides the pumping cavity into pumping chambers. The pump rotor is radially slidable and rotates in the control ring from the charge zone to the discharge zone. A spring chamber comprises a pretensioning element which pushes the control ring to a high pumping volume direction. A control chamber is configured so that a lubricant pressure in the control chamber moves the control ring to a low pumping volume direction against a force of the pretensioning element. A pumping cavity outlet port is connected to the control chamber. A pressure equilibration channel drains the lubricant from the pumping chamber in the discharge zone into the spring chamber.

GEAR PUMP AND METHOD OF DISPENSING FLUID USING SUCH PUMP

La présente invention concerne une pompe à engrenage capable de distribuer un fluide alternativement dans deux circuits d'utilisation distincts sans commutateur.La pompe à engrenage (1) est caractérisée en ce qu'elle comporte deux orifices de sortie de fluide (5, 6) raccordés à deux circuits d'utilisation du fluide et communiquant avec la chambre de refoulement (C) de la pompe par l'intermédiaire de moyens de commutation (7) intégrés. Ces moyens de commutation (7) comportent deux circuits de répartition (50, 60) prévus dans une platine (70) fixe et deux canaux tampon (30, 40) prévus dans les roues dentées (3) rotatives, agencés pour ouvrir et fermer lesdits circuits de répartition alternativement, selon un cycle de commutation correspondant sensiblement à la rotation des roues dentées sur un demi tour.

Rotary pump with geared rotors

Patent DE3408333C2

Variable displacement pump

Eine variable Verdrängungspumpe umfasst: einen Pumpenkörper; einen Rotor; einen Nockenring; Einlass- und Auslassknäle; erste und zweite Flüssigkeitsdruckkammern; eine Messöffnung, die in einem Ausstoßdurchgang vorgesehen ist, der mit dem Auslasskanal verbunden ist; einen Druckregulierungsabschnitt zum Regulieren des in die erste oder zweite Flüssigkeitsdruckkammer eingeleiteten Drucks und der eine Hochdruckkammer, eine Mitteldruckkammer und eine niedrige Druckkammer umfasst; ein Sicherheitsventil; eine Steueröffnung, die in einem Durchgang vorgesehen ist, der die Messöffnung und die Mitteldruckkammer verbindet und einen kreisförmigen Abschnitt mit einem Durchmesser von a mm aufweist; und eine Dämpfungsöffnung, die in einem Durchgang vorgesehen ist, der den Auslasskanal mit der Hochdruckkammer verbindet und einen kreisförmigen Abschnitt mit einem Durchmesser von b mm aufweist. Die Steueröffnung und die Dämpfungsöffnung erfüllen die folgenden Beziehungen: a + 2b - 2,1 >= 0, -4a + b - 16,3 <= 0 und a <= 1,8. A variable displacement pump comprises: a pump body; a rotor; a cam ring; Inlet and outlet bumps; first and second fluid pressure chambers; a measurement port provided in an exhaust passage connected to the exhaust passage; a pressure regulating section for regulating the pressure introduced into the first or second fluid pressure chamber and a high pressure chamber, a medium pressure chamber and a low pressure chamber; a safety valve; a control port provided in a passage connecting the metering port and the intermediate pressure chamber and having a circular portion with a diameter of a mm; and a damper opening provided in a passage connecting the outlet passage to the high-pressure chamber and having a circular portion with a diameter of b mm. The control port and the damping hole satisfy the following relationships: a + 2b - 2.1> = 0, -4a + b - 16.3 <= 0 and a <= 1.8.

Internal gearing variable gear pump

本发明属于泵设备技术领域。为了实现内啮合变量齿轮泵的排量可变，本发明公开了一种内啮合变量齿轮泵包括泵体、主动齿轮、从动齿轮、内齿圈和变量轴；泵体上设有进油口和出油口；主动齿轮、从动齿轮和内齿圈位于泵体内，主动齿轮和从动齿轮同时与内齿圈形成啮合连接，在主动齿轮与内齿圈的啮合位置以及从动齿轮与内齿圈的啮合位置分别形成吸油腔和排油腔；吸油腔与进油口保持连通，排油腔与出油口和进油口形成选择连通；变量轴与泵体转动连接，并且位于排油腔、出油口和进油口之间，以控制排油腔、出油口和进油口之间的通断。本发明的内啮合变量齿轮泵可以实现对排量的调整，满足更多工况的使用，具有更高使用效率。

Balanced pressure, variable displacement, dual lobe, single ring, vane pump

A pump including a pressure plate having two inlets and outlets, wherein each inlet has an auxiliary intake port in fluid communication with the inlet, and each outlet has an auxiliary discharge port in fluid communication with the outlet, and a cam/rotor assembly attached to the pressure plate. The cam/rotor assembly includes a rotatable cam having an opening, a rotor within the cam opening, the rotor having multiple radial slots, and multiple vanes that move within the slots, wherein a pumping chamber is defined by a space between rotor and cam. Rotor rotation within the cam causes the vanes to extend and retract within the pumping chamber. The movement of the vanes discharges into the outlets and auxiliary discharge ports a fluid drawn into the pumping chamber via inlets and auxiliary intake ports. The auxiliary inlet and auxiliary discharge ports reduce pressure pulsations in a variable displacement dual-lobe vane pump.

Variable displacement pump

Infinitely variable ring gear pump

一种可无限变化的环形齿轮泵,包括内和外转子的环形齿轮旋转组件的齿数差等于整数,所具的齿形使其中每个排量单元能由于齿顶接触而密封隔离,低压和高压口设置在壳体中,环形齿轮旋转组件的偏心轴线的角向位置可相对壳体进行变化。外转子的支承形成于组件的外直径上,且位于一个宽度最好与之相同的调节环之内,它通过其外周边圆或节圆以零滑移在一个内周边或节圆上滚动。其直径差等于环形齿轮旋转组件的偏心度的两倍。

Dual drive gerotor pump

A fluid pumping system comprises a housing, an electric motor, a rotatable first input, a rotatable second input driven by the electric motor, a gerotor including an inner rotor, an outer rotor; and a cam ring in sliding receipt of the outer rotor. The cam ring is selectively rotatable by one of the first input and the second input. The inner rotor is rotatable by the other of the first input and the second input. The housing includes a first fluid inlet passage on a first side of the cam ring and a second fluid inlet passage on an opposite side of the cam ring. Fluid entering a cavity between the inner rotor and the outer rotor flows parallel to the axis of rotation of the first input. The cam ring includes a radially extending outlet port and pumped fluid flows radially out of the cavity.

HYDRAULIC GEAR ENGINE WITH VARIABLE PUSHING

Variable discharge type vane pump

Automatic transmission pump installation or pump installation

本发明提供能够抑制泵的效率的下降的泵装置。泵装置具备：文氏管部，其设于排出通路的中途，并具有，具有比从排出口到文氏管部的排出通路的内径小的内径的小径部、形成为内径从小径部朝向排出通路的下游侧逐渐增大的内径渐增部；控制阀，其导入文氏管部的上游侧以及文氏管部中的压力，并通过基于文氏管部的上游侧和文氏管部(50)中的压差切换工作液的流路，控制向自动变速器供应的工作液的流量。

Variable delivery, reversible flow vane pump for fluid transmissions

Rotary fluid device with multi-level phase shift control

A method for controlling a rotary fluid device includes providing a rotary fluid device having a fluid displacement assembly and a plurality of control valves. The fluid displacement assembly includes a first member and a second member. The first and second members have relative movement and define a plurality of volume chambers. The plurality of control valves is in fluid communication with the plurality of volume chambers. A desired displacement is received. A relative position of the first and second members is determined. An optimal displacement family is selected from a plurality of displacement families that is based on peak displacements of a plurality of displacement curves. A phase shift angle for the optimal displacement family is selected so that an actual displacement of the fluid displacement assembly approaches the desired displacement. The control valves of the rotary fluid device are actuated in accordance with the phase shift angle.

Variable displacement pump including a control valve

A pump including a pump chamber 18, formed in a pump body 11, between a cam ring 17 and a rotor 15. The cam ring is formed so as to move in a direction whereby the pump capacity of the pump chamber increases and decreases. First and second fluid pressure chambers 33 and 34 are formed at opposite sides of the cam ring 17. The pump has a spool that is axially moved by a difference in fluid pressure between upper and lower stream sides of a metering throttle 50 connected to a discharge side passage 27 of the pump chamber. The spool is part of a control valve 30 that controls fluid pressure in at least the first fluid pressure chamber. An electronic driving unit, for example, a solenoid 60, applies axial thrust to the spool of the control valve.

Rotary pump

A rotary pump consists of a cam ring, a rotor disposed within the cam ring, and a pump body enclosing the cam ring and the rotor. The cam ring includes a cam surface having a centre of symmetry. The rotor has a centre of rotation which coincides with the centre of symmetry of the cam surface, and includes a plurality of fluid chambers. Each fluid chamber comprises an aperture opening into a circumference of the rotor, and a pump element sealingly disposed within the aperture. As the rotor revolves, each element remains in contact with the cam surface and moves over a stroke length between a first position adjacent the radial innermost portion of the respective aperture and a second position adjacent the radial outermost portion of the respective aperture. The pump body includes a fluid inlet and a fluid outlet respectively for transferring fluid to and fluid from the fluid chambers as the rotor rotates. Preferably, the pump also includes an actuator for rotating the cam ring about its centre of symmetry between a first angular position and a second angular position for varying the stroke length of the pump elements.

Improved switching in hydraulic machines

Variable volume vane pump

Gear pump with infinitely variable toothed ring crown

Pump unit with integrated piston pump and electric motor.

Automotive hydraulic actuating system 21 for actuating a movable vehicle part, like a roof part or a wheel suspension. The actuating system comprises a pump unit 26. The pump unit comprises a piston pump 4 which has a pump rotor 46 and an electric motor 3 which has a motor rotor 31. The pump rotor 46 and motor rotor 31 are incorporated into a single common rotor 6. The rotor 6 is a one piece item. The rotor 6 is positioned inside a pump chamber 264 around a pump stator 42 of the piston pump. The pump stator provides a full support to the common rotor 6. Advantageously, without a separate motor stator, the pump unit has a more compact configuration. Additionally, the pump unit has an improved dynamic performance which contributes to a silent and reliable operation at a high rotational speed.

Balanced pressure, variable displacement, dual lobe, single ring, vane pump

A pump including a pressure plate having two inlets and outlets, wherein each inlet has an auxiliary intake port in fluid communication with the inlet, and each outlet has an auxiliary discharge port in fluid communication with the outlet, and a cam/rotor assembly attached to the pressure plate. The cam/rotor assembly includes a rotatable cam having an opening, a rotor within the cam opening, the rotor having multiple radial slots, and multiple vanes that move within the slots, wherein a pumping chamber is defined by a space between rotor and cam. Rotor rotation within the cam causes the vanes to extend and retract within the pumping chamber. The movement of the vanes discharges into the outlets and auxiliary discharge ports a fluid drawn into the pumping chamber via inlets and auxiliary intake ports. The auxiliary inlet and auxiliary discharge ports reduce pressure pulsations in a variable displacement dual-lobe vane pump.

Variable displacement pump

Vane type variable delivery pump for power steering of motor vehicle

The pump has a cam ring (17) around the rotor (15) with vanes (15a). The ring is moved from one position to another to vary the displacement volume of fluid pressure chamber (18). Notches (70) are cut at suction and discharge ends of casing to correspondingly alter the area of cross section at the time of effecting change in delivery.

Rotary pump with positive liquid transfer

Split-Pressure Dual Pump Hydraulic Fluid Supply System for a Multi-Speed Transmission and Method

A split-pressure, dual-pump system for supplying hydraulic fluid to a multi-speed transmission is provided. The system includes a low-pressure work circuit operatively connected to a fixed displacement pump, and a high-pressure work circuit operatively connected to a variable displacement pump. The system also includes a regulator valve fluidly coupled to the variable displacement pump via a decrease circuit and an overage circuit for regulating the flow of fluid to the high-pressure work circuit. The invention consists of separating the high-pressure needs of the system into a separate work circuit from the low-pressure needs of the system, and optimizing pump design separately for each work circuit to maximize transmission efficiency and reduce parasitic losses. A method of supplying hydraulic fluid to a multi-speed transmission at variable flow and pressure is also provided.

Infinitely adjustable gerotor pump

Arrangement for setting the outlet pressure of a pump driven by a rotating motor

Fuel pump

Variable displacement vane pump

Mass balancing system with a lubricating oil pump for reciprocating engines

The invention relates to a mass balancing system with a lubricating oil pump for reciprocating engines, wherein a housing (21) of the lubricating oil pump (20) is rigidly connected to the housing of the crankshaft and a delivery wheel (22) of the pump (20) is rotationally connected to a mass balancing shaft (1, 2) or a drive shaft (3) for a mass balancing shaft (1, 2).

GEAR PUMP AND METHOD OF DISPENSING FLUID USING SUCH PUMP

Variable volume flow internal gear pump

A variable volume flow rotor pump comprising a pump housing (20) provided with a suction connection (44) and a pressure connection (46), an internally geared outer rotor (30) rotationally mounted inside the housing, and an externally geared inner rotor (28) which is eccentrically mounted therein and which can be driven by a drive shaft which is mounted parallel to the axis of the outer rotor (30) inside the pump housing. A rotatable adjusting ring (22), which is mounted coaxially in relation to the drive shaft, is also provided, the outer rotor being eccentrically and rotationally mounted therein. When seen in the direction of rotation, a slider (58) which can modify the size of at least one of the connections is provided between the pressure connection and the suction connection.

Eccentric movable vane pump

An eccentric movable vane pump, comprising a cylinder (1), a first rotor (2), a second rotor (4) and movable vanes (21); the first rotor (2) and the second rotor (4) are eccentrically disposed; the number of the movable vanes (21) is greater than or equal to 2; one end of a movable vane (21) is rotatably connected to the first rotor (2), and the other end is rotatably connected to the second rotor (4); the first rotor (2) is disposed on a main shaft (11); and an expansion area and a compression area on the cylinder (1) corresponding to a space between neighboring movable vanes (21) are respectively provided with a fluid inlet (61) and a fluid outlet (62). The pump has a simple structure, high efficiency, low cost, multiple working conditions, good stability and a long service life, can work at a high speed and in a superspeed range without being sealed by a resilient device, and has little radial impact during operation.

Pump or engine

Rotary piston machine

Variable output gerotor oil pump

A variable output gerotor oil pump of the kind having a common rotor (16) with n teeth meshed with two axially juxtaposed internally lobed annuli (14) with n + 1 teeth has the annuli individually located in eccentrics (12) formed with gear teeth to be turned in opposite directions by a gear drive. The teeth are straight cut, not bevel, and the drive includes an intermediate pinion (29) so that a single shaft turns (27) the eccentrics (12) in opposite directions.

Vane-type motor or pump

Rotary piston machines

1412981 Rotary positive-displacement fluidmachines TRADE & INDUSTRY SECRETARY OF STATE FOR 19 Jan 1973 [21 Jan 1972] 2949/72 Heading F1F In a rotating-piston machine, which may be a pump or blower, the piston 3 has a part-spherical rim 8 and flat surfaces 5, 6 with a part-cylindrical surface 7 therebetween, the casing having a flat wall 14 that causes the piston to pivot on trunnions 2 fixed to a shaft 1 when the latter is rotated by e.g. an electric motor or I.C. engine. Diametrally disposed inlet and exhaust ports, of which one is indicated at P, are formed in part-spherical portions of the casing co-operating with the rim 8, which controls these ports. The wall 14 may be replaced with a disc whose inclination can be adjusted to vary the output, Fig.4 (not shown). In another embodiment, Fig.2 (not shown), the surfaces 5, 6 are part conic and the surface 7 is part spherical and engages with a part spherical portion of a wall (16) replacing the wall 14, which portion serves as a thrust bearing. The piston may have a central cap (17), Fig.3 (not shown), made of metal-filled P.T.F.E. and serving as a journal, which engages with the wall 14. The thrust bearing or rotor portion engaging therewith may be composed of, or mounted on, a flexible and resilient material e.g. metal-filled P.T.F.E. The bearing may be composed of steel and adhesively mounted on a flexible and resilient rubber pad.

Delivery unit

输送装置是已知的，具有驱动转子和被该驱动转子驱动的从动转子，这些转子支承在一壳体中、各通过一端面齿结构啮合地配合作用并且通过至少一个入口吸入流体以及通过一出口压出流体，入口和出口通过两个隔板相互分隔开。为了调节通过输送装置的流量，例如可以进行转速调节或者旁路调节或者在气体的情况下进行吸气节流。转速调节在能量上是有效的、但是非常昂贵，因为必须使用转速可调节的电动机。在旁路调节的情况下，流体从出口经由旁路回送到入口，但是这在能量上是不利的且伴有液压损失。根据本发明的输送装置被改进，使得在入口侧可非常简单地且以小液压损失控制流量以及在出口侧在输送气体的情况下可控制内部压缩。根据本发明规定，这些隔板(9，10)中的至少一个具有至少一个控制孔(12)，所述控制孔的孔口横截面可通过控制滑阀(13)控制。

Dual drive gerotor pump

Ein Fluidpumpsystem weist auf ein Gehäuse, einen Elektromotor, einen drehbaren ersten Eingang, einen drehbaren zweiten Eingang, welcher durch den Elektromotor angetrieben wird, einen Gerotor, welcher einen Innenläufer aufweist, einen Außenläufer; und einen Nockenring, welcher den Außenläufer verschiebbar aufnimmt. Der Nockenring ist durch einen von dem ersten Eingang und dem zweiten Eingang selektiv drehbar. Der Innenläufer ist durch den anderen von dem ersten Eingang und dem zweiten Eingang drehbar. Das Gehäuse weist einen ersten Fluideinlassdurchgang auf einer ersten Seite des Nockenrings und einen zweiten Fluideinlassdurchgang auf einer gegenüberliegenden Seite des Nockenrings auf. Fluid, welches in einen Hohlraum zwischen dem Innenläufer und dem Außenläufer eintritt, strömt parallel zu der Drehachse des ersten Eingangs. Der Nockenring weist einen sich radial erstreckenden Auslassanschluss auf und gepumptes Fluid strömt radial aus dem Hohlraum. A fluid pumping system includes a housing, an electric motor, a rotatable first input, a rotatable second input driven by the electric motor, a gerotor having an inner rotor, an outer rotor; and a cam ring slidably receiving the outer rotor. The cam ring is selectively rotatable through one of the first input and the second input. The inner rotor is rotatable through the other of the first input and the second input. The housing has a first fluid inlet passage on a first side of the cam ring and a second fluid inlet passage on an opposite side of the cam ring. Fluid entering a cavity between the inner runner and the outer runner flows parallel to the axis of rotation of the first port. The cam ring has a radially extending outlet port and pumped fluid flows radially from the cavity.

VARIABLE PUSHING ENGINE

Variable displacement pump

一种可变容量泵包括：泵体；转子；凸轮环；入口和出口；第一和第二流体压力室；测流孔，所述测流孔设置在与出口连接的排出通道内；压力调节部，用于调节被引入到第一或第二流体压力室的压力，并包括高压室、中压室和低压室；溢流阀；导流孔，所述导流孔设置在连接测流孔和中压室的通道内，并具有直径为a mm的圆形截面；以及阻尼孔，所述阻尼孔设置在连接出口和高压室的通道内，并具有直径为b mm的圆形截面。所述导流孔和所述阻尼孔满足下述关系：a+2b－2.1≥0，－4a+b－16.3≤0，以及a≤1.8。

Branched duct construct, and uniaxial eccentric screw pump system

The present invention is characterized in that it is possible to branch the fluid to a desired number of branches, to arrange the discharge portion of each branch flow path at a desired position, and to have the branch flow path constitution body and the branch path constitution body capable of equalizing the discharge pressure and the discharge amount in each branch flow path And to provide a single shaft eccentric screw pump system. The branch flow path Bn of the branch flow path structure has n relay units Rn corresponding to each of the n discharge units Fn and has n systems for connecting the introduction unit S and the relay unit Rn. An inter-relay flow path SRn and an n-system relay / discharge portion flow path RFn for connecting the n relay portions Rn and the discharge portion Fn. Further, in the branch passage structure, the relay section Rn is disposed at a position corresponding to the point where the circumference of the imaginary circle centering on one point on the vertical line passing through the axis center of the introduction section S is divided by n, The branch flow path Bn is formed such that the lengths of the relay-to-discharge-portion flow paths RFn are equal to each other.

Eccentric movable vane pump

편심 활동 베인 펌프의 일종이고 실린더 블록, 제1 회전자, 제2 회전자 및 활동 베인을 포함한다. 제1 회전자와 제2 회전자가 편심으로 설치된다. 제1 회전자가 활동 베인의 일단에 회전적으로 연결될 수 있다. 제2 회전자와 활동 베인은 일대일로 대응하고 수량이 두 개 이상이다. 활동 베인의 타단에는 제2 회전자가 회전적으로 연결될 수 있다. 제1 회전자는 주축 위에 설치된다. 실린더 블록에는, 서로 인접한 활동 베인 간의 공간의 팽창 구역 및 압축 구역에 각각 대응하는 유체 입구와 유체 출구가 구비된다. 본 발명은 구조가 간단하고 효율이 높고 원가가 낮고 작동 상태가 다양하고 안전성이 높고 수명이 긴 장점이 있고 밀봉하는 탄성 장치가 없어도 고속 및 초고속 범위에 작업할 수 있다. 게다가 작업할 시 반지름 충격이 낮다. 진공 펌프, 압축기 펌프, 펌프, 자동차 원심 과급기, 내연기, 송풍기, 수력 발동기, 수증기 터빈 펌프, 추진기 및 무단 수력 커플러 등 분야에 사용될 수 있다.

Coupling device

A device for coupling an input shaft and an output shaft is provided. The device includes a carrier coupled to the input shaft, a pressure chamber, and a rotary pump coupled to the carrier in the output shaft. The rotary pump is adapted to increase pressure in the pressure chamber upon relative rotational movement of the carrier and the output shaft and to resist relative rotational movement of the carrier in the output shaft upon the presence of sufficient pressure in the pressure chamber.

Getriebepumpe und verfahren zur flüssigkeitsausgabe mittels einer solchen pumpe

Rotationspumpe

一种可调式输油设备

本发明公开了一种可调式输油设备，包括输油器，所述输油器内设置有吸油装置，其中，所述吸油装置包括吸油腔以及设置于所述吸油腔内的吸油叶轮，所述吸油装置与动力装置之间设置有吸油传动装置，用于驱动所述吸油叶轮高速转动，其中，所述动力装置包括综合动力腔；该设备机械设计合理和巧妙，安装、维护以及检修均十分方便，操作者可设置输出油液体积，提高了该设备输出油液的准确性，并且在吸入油液后自动将油液加压排出，保证油液排出时的压力，便于抽取液位较低的油液，提高该设备的使用范围，该设备在使用过程中具有高效的自动化程度，具有较高的使用和推广价值。

Dual drive vane pump

A fluid pumping system for a vehicle having an internal combustion engine comprises a housing, an electric motor, a rotatable first input adapted to be driven by the internal combustion engine, a rotatable second input driven by the electric motor, and a pump. The pump includes a drum selectively rotated about a drum axis of rotation by one of the first input and the second input, and a pump rotor selectively rotated by the other of the first input and the second input. The drum includes a cam ring having a cavity in receipt of the pump rotor. The drum includes a first fluid inlet port and a second fluid inlet port on opposite sides of the drum such that fluid entering the cavity through the first and second fluid ports flows axially in a direction parallel to the drum axis of rotation. The drum includes a radially extending outlet port such that pumped fluid flows radially out of the cavity. The housing contains the electric motor and the pump.

이중 구동 베인 펌프

내연 기관을 갖는 차량용 유체 펌핑 시스템은 하우징, 전기 모터, 상기 내연 기관에 의해 구동되도록 구성된 회전 가능한 제1 입력, 상기 전기 모터에 의해 구동되는 회전 가능한 제2 입력, 및 펌프를 포함한다. 상기 펌프는 상기 제1 입력 및 상기 제2 입력 중 하나에 의해 드럼의 회전 축을 중심으로 선택적으로 회전되는 드럼, 및 상기 제1 입력 및 상기 제2 입력 중 다른 하나에 의해 선택적으로 회전되는 펌프 로터를 포함한다. 상기 드럼은 상기 펌프 로터를 수용하는 캐비티를 갖는 캠 링을 포함한다. 상기 드럼은 상기 드럼의 양 측면 상에 제1 유체 유입 포트 및 제2 유체 유입 포트를 포함하여 상기 제1 및 제2 유체 포트를 통해 상기 캐비티로 진입하는 유체가 상기 드럼의 회전 축에 평행한 방향으로 축방향으로 흐른다. 상기 드럼은 방사상으로 연장되는 출구 포트를 포함하여 펌핑된 유체는 상기 캐비티 밖으로 방사상으로 흐른다. 상기 하우징은 상기 전기 모터와 상기 펌프를 포함한다.

듀얼 구동 지로터 펌프

본 발명은 유체 펌핑 시스템에 관한 것이다. 상기 유체 펌핑 시스템은 하우징; 전기 모터; 회전 가능한 제1 입력부; 상기 전기 모터에 의하여 구동되는 회전 가능한 제2 입력부; 내부 회전자와 외부 회전자를 포함하는 지로터 모터; 및 상기 외부 회전자를 슬라이딩 수용하는 캠링을 포함한다. 상기 캠링은 상기 제1 입력부 및 상기 제2 입력부 중 하나에 의하여 선택적으로 회전 가능하다. 상기 하우징은 상기 캠링의 제1 측에 있는 제1 유체 입구 통로 및 상기 캠링의 맞은 편에 있는 제2 유체 입구 통로를 포함한다. 상기 내부 회전자 및 상기 외부 회전자 사이의 캐비티에 진입하는 유체는 상기 제1 입력부의 회전축에 평행하게 유동하고, 상기 캠링은 방사상으로 연장되는 출구 포트를 포함하고, 펌핑된 유체는 캐비티 밖으로 방사상으로 유동한다.

Fahrzeugkraftübertragungssystem

Es wird ein Fahrzeugkraftübertragungssystem vorgesehen, wobei eine Ölpumpe aufgebaut ist, um ein erforderliches Antriebsdrehmoment ausreichend zu verringern. Eine Hochdruckanschlussabgabemenge Q1 eines ersten und eines zweiten Hochdruckdurchgangs 110, 114 der Ölpumpe 28 wird derart bestimmt, dass eine Menge Q' eines Verbrauchs von Arbeitsöl eines relativ hohen Drucks durch lediglich die Hochdruckanschlussabgabemenge Q1 während eines stetigen Fahrens eines Fahrzeugs geliefert werden kann, wobei eine Maschinendrehzahl NE nicht niedriger als ein vorbestimmter Schwellenwert NE2 ist, der einer vorbestimmten niedrigsten Soll-Eingangswellendrehzahl MINT L eines stetig variablen Getriebes 18 für seine Schaltsteuerung entspricht. Deshalb kann der Druck des Arbeitsöls, der von dem ersten und dem zweiten Niederdruckabgabedurchgang 112, 116 abgegeben wird, bei einem vorbestimmten niedrigen Niveau beibehalten werden und das erforderliche Antriebsdrehmoment der Ölpumpe 28 kann ausreichend verringert werden.

一种变量齿轮泵

本发明公开了一种变量齿轮泵，包括泵体，所述泵体的左侧设有左端开口的圆形泵腔，所述泵体的左侧固定设有左端盖，所述左端盖和泵体之间转动连接有主齿轮，所述主齿轮的左端设有伸出左端盖的转轴，所述圆形泵腔内设有小月牙板和大月牙板，所述小月牙板的外侧转动连接有第一齿圈，所述大月牙板外侧转动连接有第二齿圈；所述泵体的外侧设有P口和T口，所述泵体内形成第一吸油区、第一排油区、第二吸油区、第二排油区；所述第一吸油区和第二吸油区均与T口连通；所述第一排油区通过第一单向阀与P口连通，所述第二排油区通过第二单向阀与P口连通；所述泵体内设有变量阀杆；该变量齿轮泵不仅结构简单，而且能够根据需要改变排量。

一种内啮合齿轮泵

本发明公开了一种内啮合齿轮泵，包括泵体，所述泵体的左侧设有左端开口的圆形泵腔，所述泵体的左侧固定设有左端盖，所述圆形泵腔内转动连接有内齿圈，所述圆形泵腔内设有弧形导板，所述左端盖和泵体之间在相邻的两个弧形导板之间均转动连接有与内齿圈啮合的齿轮，其中一个齿轮的左端设有伸出左端盖的转轴；所述泵体的侧面设有P口和T口，所述圆形泵腔内在每个齿轮与内齿圈啮合的两侧均形成吸油区和排油区，每个吸油区均与T口连通，每个排油区均通过单向阀与P口连通；每个弧形导板的端部均铰接有月牙板；所述泵体的右侧设有多个与月牙板一一对应的变量控制组件；该内啮合齿轮泵不仅结构简单，而且能够根据需要改变排量。

[UNK]

Vehicular power transmitting system

Providing a vehicular power transmitting system wherein an oil pump is constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount Q1 of first and second high-pressure passages 110, 114 of the oil pump 28 is determined such that an amount Q' of consumption of working oil of relatively high pressure can be afforded by only the high-pressure-port discharge amount Q1, during steady-state running of a vehicle wherein engine speed N E is not lower than predetermined threshold value N E2 corresponding to predetermined lowest target input shaft speed N INTL of continuously variable transmission 18 for its shifting control. Therefore, the pressure of the working oil discharged from first and second low-pressure discharge passages 112, 116 can be kept at a predetermined low level, and the required drive torque of the oil pump 28 can be sufficiently reduced.

Motore a palette a regolazione continua.

Internal gear pump

The internal gear pump according to the present invention includes: an inner rotor; an outer rotor that rotates with predetermined eccentricity to a rotation center of the inner rotor; an outer ring that rotatably holds the outer rotor, and has at least three cam protruded parts formed; a pump housing that has a rotor chamber; pins in the same number as that of the cam protruded parts; and operation means for oscillating the outer ring. Positions of the pins are set so that a diameter center of the holding-inner peripheral part of the outer ring is moved by the operation means along a locus of a circle, the radius of which is the eccentricity to the rotation center of the inner rotor.

Flügelpumpe mit variabler Kapazität

Flügelpumpe mit variabler Kapazität, die umfasst: einen Pumpenkörper, eine Antriebswelle, die drehbar durch den Pumpenkörper gehalten wird, einen Rotor, der in dem Pumpenkörper vorgesehen ist und drehend durch die Antriebswelle angetrieben wird, eine Vielzahl von Flügeln, die radial ausfahrbar in entsprechenden Schlitzen installiert sind, die in einer Umfangsrichtung in dem Rotor angeordnet sind, einen Nockenring, der schwenkbar auf einer Haltefläche in dem Pumpenkörper vorgesehen ist und an einer Innenumfangsseite zusammen mit dem Rotor und den Flügeln eine Vielzahl von Pumpenkammern bildet, ein erstes und ein zweites Glied, die auf beiden Seiten in einer Axialrichtung des Nockenrings vorgesehen sind, eine Einlassöffnung, die an dem ersten und/oder dem zweiten Glied vorgesehen ist und sich zu einem Abschnitt der Pumpenkammer öffnet, in dem das Volumen der Pumpenkammer größer wird, eine Auslassöffnung, die an dem ersten und/oder dem zweiten Glied vorgesehen ist und sich zu einem...

Forbedring ved pumper

Verdrängerpumpe mit fördervolumenverstellung

액체 펌프, 특히 차량의 구동 트레인에서 변속기 또는 클러치에 공급을 제공하기 위한 액체 펌프

본 발명은, 구동 모터(2), 반대되는 두 회전 방향들로 작동될 수 있는 펌프 모듈(3), 및 적어도 하나의 체크 밸브(36, 38, 39)가 각각 할당된 적어도 하나의 입구(26) 및 다수의 출구(28, 30, 32)를 가지는 액체 펌프로서, 특히 차량의 구동 트레인에서 클러치 또는 변속기에 공급을 제공하기 위한 액체 펌프로서, 각각의 체크 밸브(38, 39)에 대해, 밸브 시트(34), 및 상기 밸브 시트(34)와 상호 작용하는 밸브 요소(36, 38, 39)에 대한 리셉터클(40)이 제공된 밸브 플레이트(5)가 상기 펌프 모듈(3)에 할당되는 것을 특징으로 하는 액체 펌프에 관한 것이다.

Net-displacement control of fluid motors and pumps

Methods for controlling the net-displacement of a rotary fluid pressure device are disclosed. One of the net-displacement control methods (47) includes obtaining a desired input parameter (23) and a relative position (21 ) of a first member (43) and a second member (35) of a fluid displacement mechanism. A determination of a first and second output value is then made for each of a plurality of volume chambers (45) when the volume chambers (45) are supplied with fluid at fluid inlet and fluid outlet conditions, respectively. A total output value is then computed for each of a plurality of control valve configurations (63) and compared to the desired input parameter (23). The control valve configuration (63) with the total output value most similar to the desired input parameter (23) is then selected. A plurality of control valves (15) are then actuated in accordance with the selected control valve configuration (63).