ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателям. Вращательный двигатель внутреннего сгорания содержит поршень расширения, поршень сжатия, камеру (1) сгорания и расширения, камеру (2α, 2β) сжатия и напорную камеру (3α, 3β). Камера (1) сгорания и расширения выполнена с возможностью приема поршня расширения. Камера (2α, 2β) сжатия выполнена с возможностью приема поршня сжатия. Радиус круговой траектории поршня расширения больше, чем радиус круговой траектории поршня сжатия. Радиус круговой траектории поршня расширения выбран максимально возможным исходя из размеров двигателя. Радиус круговой траектории поршня сжатия выбран минимально возможным, исходя из радиуса вала двигателя. Напорная камера (3α, 3β) размещена с возможностью прохода текучей среды между камерой (2α, 2β) сжатия и камерой (1) сгорания и расширения. Напорная камера (3α, 3β) выполнена с возможностью соединения расположенных на расстоянии камеры (2α, 2β) сжатия и камеры (1) сгорания и расширения путем вмещения воздуха или топливовоздушной ...

ДВИГАТЕЛЬ ОБЪЕМНОГО ТИПА С РАДИАЛЬНО ОГРАНИЧЕННЫМ ЗАЦЕПЛЕНИЕМ РОТОРА

Группа изобретений относится к области бурения скважин. Сборка бурового снаряда, который содержит сборку забойного двигателя, содержащую верхний переводник, содержащий бурт, имеющий первый внутренний диаметр вблизи дистального конца верхнего переводника, и рабочую пару, содержащую винтовой двигатель, имеющий статор и ротор, выполненные с возможностью эксцентрического вращения при прохождении бурового раствора через двигатель и имеющие ближний конец и дистальный конец, ближний конец статора прикреплен к дистальному концу верхнего переводника; зацепление ротора, содержащее вал, имеющий ближний конец и дистальный конец и эксцентрически вращающийся посредством трансмиссии эксцентриковой передачи ротора; дистальный конец вала напрямую или опосредованно прикреплен к ближнему концу ротора; а вал проходит от дистального конца зацепления ротора в верхний переводник на расстоянии мимо бурта, при том что по меньшей мере часть вала, проходящая мимо бурта, имеет внешний диаметр меньше, чем первый внутренний ...

ЭЛЕМЕНТЫ СКОЛЬЖЕНИЯ И ПОРШНЕВОЙ НАСОС/ДВИГАТЕЛЬ

Изобретение относится к элементам скольжения, которые скользят относительно друг друга и могут быть использованы в поршневых насосах и двигателях, выполненных с использованием этих элементов. Скользящая часть одного элемента скольжения выполнена из аморфного гидрогенизированного углерода, легированного хромом, а скользящая часть другого элемента скольжения выполнена из медного сплава или алюминиевого сплава. В поршневом насосе или двигателе один из элементов скольжения применен в качестве пластины клапана, закрепленной внутри корпуса, а другой элемент скольжения применен в качестве цилиндрового блока, помещенного в корпусе таким образом, чтобы обеспечивать скольжение относительно пластины клапана. Предотвращается отслаивание аморфной углеродной пленки с улучшением скольжения между ними.2 н. и 2 з.п. ф-лы, 2 табл. 5 ил.

ГИДРОМОТОР, ИНТЕГРИРОВАННЫЙ С КОЛЕСОМ ТРАНСПОРТНОГО СРЕДСТВА

Изобретение относится к гидромотору, интегрированному с колесом транспортного средства. Гидромотор содержит ступицу, корпус гидромотора, кольцевую гайку, распределитель гидравлического масла. Ступица установлена на поворотную цапфу, определяющую ось (Х) ступицы и гидромотора. Корпус гидромотора установлен без возможности вращения на поворотной цапфе, имеет кольцевую форму и оснащен радиальными поршнями. Кольцевая гайка выполнена за одно целое со ступицей, на которую воздействуют радиальные поршни. Распределитель гидравлического масла расположен в ступице. Достигается повышение надежности устройства. 2 н. и 10 з.п. ф-лы, 2 ил.

ОСЕВОЙ ОБЪЕМНЫЙ КОМПРЕССОР И ГАЗОТУРБИННЫЙ ДВИГАТЕЛЬ

Изобретение относится к осевым компрессорам непрерывного действия. Осевой объемный компрессор 8 имеет вход 20, отстоящий по оси от выхода 22 и расположенный выше по потоку от него. Компрессор 8 имеет непрерывный осевой поток от входа 20 через выход 22. Внутренний и внешний корпуса 12, 14 имеют смещенные относительно друг друга внутреннюю и внешнюю оси 16, 18, последовательно проходящие от входа 20 к выходу 22 через первый и второй участки 24, 26 узла 15 компрессора в направлении вниз по потоку. По меньшей мере, один из корпусов выполнен с возможностью вращения вокруг своей оси. Внутренний и внешний корпуса имеют перемежающиеся внутренние и внешние винтовые лопасти 17, 27, вращающиеся вокруг внутренней и внешней осей 16, 18, соответственно. Внутренние и внешние винтовые лопасти 17, 27 проходят по радиусу наружу и внутрь, соответственно. Винтовые лопасти имеют первый и второй углы скручивания на первом и втором участках 24, 26, соответственно. Первые углы скручивания меньше вторых углов скручивания ...

Роторная объёмная машина

Изобретение относится к конструкции роторных объемных машин - компрессоров, гидронасосов, пневмодвигателей, гидродвигателей, в которых происходит движение рабочей среды через камеры переменного объема, образуемые полостью и поршнем. Роторная объемная машина выполнена на основе шестеренного насоса с внутренним зацеплением при соотношении чисел зубьев 1:2. Зубья, в находящиеся в зацеплении, образуют камеры переменного объема с нулевым паразитным объемом при вытеснении рабочей среды. Контуры перепускных окон 11 по одному из каналов входа или выхода рабочей среды выполнены с перекрытием только тех контуров межзубных полостей внешнего ротора 2 на его торцевых плоскостях для любого его положения, которые закрыты зубьями внутреннего ротора 3 с образованием камер переменного объема. Внутреннее пространство внешнего ротора 2 выполнено с возможностью заполнения рабочей средой. Изобретение направлено на обеспечение применимости роторной объемной машины для сжимаемой рабочей среды, снижение трения, ...

ГИДРОМАШИНА

Гидромашина может быть использована в качестве двигателя, насоса или блока, рулевого управления. Гидромашина содержит вытесняющий элемент, движущийся по орбите и соединенный с предотвращением вращения с выходным валом посредством промежуточного вала /5/, который по меньшей мере на одном конце имеет наружный зубчатый венец /6/, находящийся в зацеплении с внутренним зубчатым венцом, и который благодаря этому зацеплению установлен с возможностью перемещения на шарнире. Для этого зубья /10/ внешнего зубчатого венца /6,7/ выполнены с вогнутыми сторонами /11,12/ , которые в осевом направлении на концах /15,16/ имеют меньшую кривизну, чем в середине. Увеличивается допустимая нагрузка такой машины. 7 з.п.ф-лы, 2 ил.

СИСТЕМА ГИДРАВЛИЧЕСКОГО ПРИВОДА

Система гидравлического привода предназначена главным образом для привода тяжелого промышленного оборудования. Система привода включает в себя множество приводимых гидравлически поршневых устройств (14) с кулачковыми роликами (30), которые расположены так, чтобы действовать против волнообразного профиля (38) кулачка криволинейного элемента (40) кулачка, таким образом линейное движение кулачковых роликов (30) по профилю (38) кулачка создает относительное приводное движение между криволинейным элементом (40) кулачка и поршневыми устройствами (14). Отличительным признаком изобретения является то, что система привода состоит из отдельных собранных модулей (41) криволинейных элементов кулачка и отдельных собранных поршневых устройств (14), причем модули (41) криволинейных элементов кулачка установлены на приводимом рабочем устройстве, а поршневые устройства (14) установлены на неподвижной раме (12) или наоборот. Система повышает надежность привода оборудования. 9 з.п. ф-лы, 4 ил.

Роторная машина объёмного действия с винтовыми коническими роторами

Изобретение относится к машиностроению, а именно к роторной машине. Роторная машина содержит два конических винтовых ротора с пересекающимися осями. Роторы расположены в конических расточках (3, 4) корпуса. Оси расточек (3, 4) совпадают с осями роторов. Один ротор по длине разделён на секции (1.1, 1.2 и 1.3), другой - на секции (2.1, 2.2 и 2.3). Секции (1.1, 1.2 и 1.3) связаны между собой общим валом (7), секции (2.1, 2.2 и 2.3) - общим валом (8). Секции разделены неподвижными перегородками (9, 10), герметично посаженными в корпусе. Перегородки (9, 10) с торцами секций образуют минимальный зазор, гарантирующий свободное вращение секций. Перегородка (9) выполнена с замкнутой канавкой (22) на боковой поверхности, а перегородка (10) - с канавкой (23). Корпус выполнен из двух половин (5, 6), которые соединены друг с другом в плоскости осей расточек (3, 4), а следовательно, и роторов. Внутри половины (5) выполнены выемки (24, 25), внутри половины (6) - выемки (27, 28). Выемки (24, 25) смещены ...

ШЕСТЕРЕННЫЙ ГИДРОМОТОР, ШЕСТЕРЕННЫЙ НАСОС И ПЕРЕДАЧА, ИМЕЮЩАЯ БЕССТУПЕНЧАТО-РЕГУЛИРУЕМЫЕ ПАРАМЕТРЫ

ВОДНО-ВЗРЫВНОЙ ДВИГАТЕЛЬ, СПОСОБ И УСТРОЙСТВО

... 1. Способ приведения в действие двигателя распылением воды для производства пара, при котором распыляемую воду подвергают воздействию высокого давления и впрыскивают в виде импульса через сопло в нагретую рабочую среду, находящуюся при нормальном давлении, приблизительно 1·105 Па, в двигателе так, что вода распыляется в виде очень мелких частиц, в результате ее высокого внутреннего давления, в результате чего происходит взрывное испарение воды. ! 2. Способ по п.1, в котором распыляемую воду подвергают воздействию давления приблизительно 1500·105 Па. ! 3. Способ по п.1, в котором рабочую среду подогревают до нескольких сотен градусов по Цельсию. ! 4. Способ по п.1, в котором производимые частицы воды имеют размер около ! 1 мкм3. ! 5. Способ по п.1, в котором после выхода из двигателя пар снова конденсируется в воду в охлаждающем устройстве, и конденсированную воду снова подают в емкость для воды. ! 6. Способ по п.1, в котором двигатель теплоизолируют для избежания тепловых потерь. ! 7. Система ...

ШПИНДЕЛЬНАЯ/ПРИВОДНАЯ СЕКЦИЯ ДЛЯ РОТОРА/СТАТОРА ДВИГАТЕЛЯ ОБЪЕМНОГО ТИПА(PDM)

... 1. Забойный двигатель, содержащий ротор и статор, при этом статор имеет одну или большее количество вставок или приводные секции для ограничения бокового движения ротора относительно статора.2. Перемещающий или винтовой двигатель или насос, содержащий:ротор;статор, содержащий:первую, геликоидальную секцию, состоящую из податливого материала первой степени сжимаемости;вторую секцию, геликоидальную, негеликоидальную или их комбинацию, имеющую вторую степень сжимаемости, при этом вторая степень сжимаемости меньше первой степени сжимаемости.3. Двигатель или насос по п.2, в котором первая секция содержит резину, а вторая секция содержит по меньшей мере один из следующих материалов: резина второго типа, металл, композит и керамика.4. Двигатель или насос по п.3, в котором вторая секция в процессе работы двигателя или насоса не препятствует работе ротора или помехи в работе являются минимальными.5. Двигатель или насос по п.2, в котором первая секция и вторая секция образуют непрерывный спиральный ...

РОТОРНАЯ ГИДРОМАШИНА

ПЕРИФЕРИЙНЫЙ ТУРБОНАСОС

... 1. Периферийный турбонасос (1), образованный механизмом, относящимся к типу, который подает текучую среду, отличающийся тем, что он содержит два колеса (2), зацепленных друг с другом так, что одно перемещает другое синхронизированным образом, причем колеса сбоку содержат две или более лопастей (3), расположенных в согласующихся углублениях (4), размещенных на их сторонах между указанными лопастями (3) при указанном зацепленном вращении, причем указанные колеса (2) размещены внутри корпусов (5), между которыми образованы соответствующие отверстия (6) для впуска и выпуска текучей среды.2. Периферийный турбонасос (1) по предыдущему пункту, отличающийся тем, что размер отверстий (6) определен длиной, вычисленной как сумма:горизонтальной проекции расстояния между центрами колес (2),произведения радиуса на косинус полуугла, образованного двумя последовательными лопастями (3) одного из колес (2),произведения радиуса на косинус полуугла, образованного двумя последовательными лопастями (3) другого ...

ГИДРОМОТОР, ИНТЕГРИРОВАННЫЙ С КОЛЕСОМ ТРАНСПОРТНОГО СРЕДСТВА

ЗАБОЙНЫЕ ДВИГАТЕЛИ И НАСОСЫ С АСИММЕТРИЧНЫМИ ВИНТОВЫМИ ЗУБЬЯМИ

... 1. Устройство для использования в скважине, содержащее:статор, включающий винтовой зуб, имеющий профиль, сформированный вдоль внутренней поверхности статора; иротор, размещенный в статоре и включающий винтовой зуб, имеющий профиль, сформированный на наружной поверхности ротора, причемпо меньшей мере один из профилей винтового зуба ротора или винтового зуба статора выполнен асимметричным.2. Устройство по п. 1, в котором винтовой зуб статора включает первую сторону и вторую сторону, причем геометрия первой стороны отличается от геометрии второй стороны.3. Устройство по п. 1, в котором винтовой зуб ротора включает первую сторону и вторую сторону, причем геометрия первой стороны отличается от геометрии второй стороны.4. Устройство по п. 1, в котором статор включает асимметричный предварительно сформированный профиль.5. Устройство по п. 1, в котором винтовой зуб статора включает первую сторону и вторую сторону, причем угол наклона первой стороны относительно центральной линии, проходящей через ...

ОСЕВАЯ ОБЪЕМНАЯ МАШИНА, ГАЗОТУРБИННЫЙ ДВИГАТЕЛЬ, А ТАКЖЕ АВИАЦИОННЫЙ ГАЗОТУРБИННЫЙ ДВИГАТЕЛЬ (ВАРИАНТЫ)

... 1. Осевая объемная машина (8), содержащая вход (20), расположенный на одной оси с выходом (22) и на расстоянии от него выше по потоку; узел (15) сердцевины, включающий в себя внутреннюю основную часть (12), расположенную внутри внешней основной части (14), причем внутренняя и внешняя основные части (12, 14) проходят от входа (20) к выходу (22), при этом внутренняя и внешняя основные части (12, 14) имеют смещенные внутреннюю и внешнюю оси (16, 18) соответственно, по меньшей мере, одна из внутренней и внешней частей (12, 14) выполнена с возможностью вращения вокруг соответствующей одной из внутренней и внешней осей (16, 18), внутренняя и внешняя основные части (12, 14) имеют взаимопересекающиеся внутреннюю и внешнюю винтовые лопатки (17, 27), осями винтовых поверхностей которых являются внутренняя и внешняя оси (16, 18) соответственно, внутренняя и внешняя винтовые лопатки (17, 27) проходят по радиусу снаружи и внутри соответственно, узел (15) сердцевины имеет первую, вторую и третью секции ...

Гидравлическое ударное устройство

Гидравлическое устройство ударного действия

RADIALKOLBENMASCHINE

Hydrostatisches Triebwerk als hydraulischer Starter eines Verbrennungsmotors

Die Erfindung betrifft ein hydrostatisches Triebwerk (7), das als Verstellmaschine mit einem stufenlos verstellbaren Verdrängervolumen ausgebildet ist und als Pumpe und Motor betreibbar und mit einem Verbrennungsmotor (2) trieblich verbunden ist, wobei das Triebwerk (7) im Pumpenbetrieb mit einer Saugseite Druckmittel aus einem Behälter (9) ansaugt und in eine zu mindestens einem Verbraucher (V) geführte Förderleitung (10) fördert und wobei das Triebwerk (7) im Motorbetrieb als hydraulischer Starter zum Starten des Verbrennungsmotors (2) ausgebildet ist, wobei dem Triebwerk (7) im Motorbetrieb an der Saugseite Druckmittel aus einem Druckmittelspeicher (25) zuführbar ist, wobei das Verdrängervolumen des Triebwerks mittels einer Verdrängervolumenstelleinrichtung (50) einstellbar ist, die mit einer Stelleinrichtung (52) betätigbar ist. Die Erfindung, ein derartiges Triebwerk zur Verfügung zu stellen, das bei geringem Bauaufwand einen Start des Verbrennungsmotors im Motorbetrieb des Triebwerks ...

Druckluftmotor fuer Hebezeuge od. dgl.

Hydrostatic displacement machine e.g. multi-stroke swash plate machine, for use as e.g. pump, has path of stroke disk provided with resilient front sections, which include increased deformability relative to middle section of disk

The machine has a cylinder drum arranged around a rotational axis. The drum is provided with piston openings. A piston (4) i.e. stepped piston, is length-adjustable arranged in the openings. The piston is supported at a multi-stroke path (6) by a roller body (W) i.e. solid roller. The path is formed at an annular stroke disk (7). The path of the stroke disk is provided with resilient front sections (23a, 23b) in a region of front-side contact regions (8b, 8c) of the roller body. The front sections include an increased deformability relative to a middle section of the stroke disk.

FLUIDMOTOR UND/ODER PUMPE

Hydrotransformator

Die Erfindung betrifft einen Hydrotransformator mit einer Vielzahl von Verdrängerräumen und mit einer Steuerscheibe, die um eine Drehachse verdrehbar ist, um eine Pumpwirkung/Motorwirkung des Hydrotransformators zu verstellen, und die Steuerausnehmungen aufweist, denen jeweils mehrere Verdrängerräume zugeordnet sind. Die Erfindung zeichnet sich dadurch aus, dass sich die Größe der Verdrängerräume im Betrieb des Hydrotransformators, bezogen auf die Drehachse der Steuerscheibe, radial, tangential und/oder in Umfangsrichtung, verändert, um die Pumpwirkung/Motorwirkung des Hydrotransformators zu erzielen.

Hydrostatischer Antrieb

Kolbeneinheit und hydrostatische Radialkolbenmaschine

Offenbart sind eine Kolbeneinheit, mit einem Kolben, der eine Wälzkörperaufnahme zur drehbaren Lagerung eines Wälzkörpers aufweist, und eine mit zumindest einer derartigen Kolbeneinheit ausgeführte hydrostatische Radialkolbenmaschine. Erfindungsgemäß weist die Wälzkörperaufnahme eine Lagerfläche mit einer Oberflächenbeschichtung bestehend aus einer polymeren Verbindung oder mit einer keramischen Oberflächenbeschichtung auf.

Axialkolbenmaschine, insbesondere für ein Kraftfahrzeug

Die Erfindung betrifft eine Axialkolbenmaschine (1), – mit einem Gehäuse (2), in welchem wenigstens zwei Arbeitsräume (6a, 6b) zum Durchströmen mit einem Fluid (F) angeordnet sind, wobei in jedem Arbeitsraum (6a, 6b) jeweils ein relativ zum Gehäuse (2) bewegbarer Kolben (5a, 5b) angeordnet sind, – mit einer im Gehäuse (2) angeordneten, relativ zum Gehäuse (2) drehverstellbaren Hohlwelle (7), über welche die wenigstens zwei Arbeitsräume (6a, 6b) jeweils wahlweise mit einem Fluideinlass (13) zum Einleiten des Fluids (F) in den jeweiligen Arbeitsraum (6b) oder mit wenigstens einem Fluidauslass (39) zum Ausleiten des Fluids (F) aus dem jeweiligen Arbeitsraum (6a) verbindbar sind, – wobei in der Hohlwelle (7) ein Hohlwelleninnenraum (12) ausgebildet ist, welcher mittels eines Trennelements (9) in einen Fluid-Zuführungsbereich (10) und in einen Fluid-Abführungsbereich (11) unterteilt ist, – wobei die Hohlwelle einen Hauptdurchlass (14) aufweist, mittels welchem der Fluid-Zuführungsbereich (10 ...

HYDRAULISCHER AXIALKOLBENMOTOR.

Radialkolbenmaschine

Konstruktion zum Einstellen eines Taumelscheibenwinkels eines hydraulischen Verstellmotors

Control valve

The control valve for controlling the speed of a hydraulic motor (20) has a main control valve (A) and a pilot control valve (B). In addition, a fluid pressure acts on the armature (47) of the solenoid, which is determined by two throttles (59, 62), which lie parallel to one another and have a control oil flow passing through them which occurs at the outlet of the pilot control valve. Due to the two throttles, a feedback pressure is produced, by means of which the stability of the valve is improved. By varying the energisation of the solenoid, the response pressure of the control valve is varied, which produces different speeds of the hydraulic motor according to the resistance characteristic of the fan drive. ...

Hydraulisches Getriebe

Hydromotor mit veraenderbarem Hubvolumen

RADIALKOLBENMASCHINE

Hydraulic bypass motor, has input connectors and output connectors connected with each other, and inner and outer groups of cylinder-piston combinations extending over sliding hole of control valve

The motor has inner and outer groups of cylinder-piston combinations (50, 52) comprising input connectors (46a, 48a) and output connectors (46b, 48b), which are connected with each other. Pressurizing medium flow runs between a high pressure supply connector (A) and a low pressure supply connector (B), and the groups extend over the sliding hole of a control valve (101) e.g. 5/2 control valve. Input connector is separated from high pressure supply connector by the control valve and the groups are attached to pair of pressure elements that are arranged with different diameters.

Hydraulic drive for a punch of forming machine has an active surface acting in the driving direction and delimiting an annular chamber which is connected to a switching valve

Hydraulic drive has an active surface (30) acting in the driving direction and delimiting an annular chamber (32) which is connected to a switching valve (10). The annular chamber is impinged with a supply pressure in the original position of the switching valve and with a lower supply pressure when a predetermined loading pressure is exceeded. An independent claim is also included for a switching valve for the hydraulic drive. Preferred Features: The switching valve prevents the connection of the annular chamber with a tank line (16) and permits a pressure flow in the counter direction. A tank line damper is provided in the tank line.

Vorrichtung zum gleichmaessigen Verteilen eines Druckmittels

NOCKENBETRIEBENER MOTOR

Hydraulic drive for reciprocating machinery - can operate at frequencies up to 500 hz at very high pressures

The hydraulic drive for the cyclic operation of machinery at frequencies up to 500 Hz consists of a body (1) with a central double ended piston (2) working in cylinders (9, 9a). Each cylinder is connected to a double beat slide valve (3, 4). The slide valves are continuously oscillated by rotating cams (5, 6) and compression springs. The operation of the slide valves is so phased that when the piston (10) is exposed to one of the pressure sources, which is up to 10,000 psi the piston is exposed to low pressure so that the double piston oscillates simultaneously with the slide valves.

VORRICHTUNG ZUM REGELN DES BETRIEBS VON HYDROMOTOREN

Wassersaeulenmaschine

Steuerung fuer doppeltwirkende, schwungradlose Kolbenkraftmaschinen

ELEKTROHYDRAULISCH ANGETRIEBENE HANDWERKZEUGMASCHINE

Axial pump or motor

Two rotation-synchronised groups of concentric cylindrical holes (4a,4b) and axially spaced cylindrical drums (2,3) are provided and between these a circular swashplate (6) is placed non-twistably at an angle to the rotation axis (F) of the machine. A piston (5) thrusts against the swashplate from within the holes lengthways to displace the pressure medium from one piston face and load the other face with medium. The piston consists of two coaxially spaced parts (5a,5b) of similar diameter so as to ride into opposing holes. These two piston parts are joined by a bridge piece (5c) as fitted with two support elements (7a,7b) on each bridge part so as to move directly or indirectly onto the swashplate along a travel path. The bridge parts radiate inwards towards the machine rotation axis (D).

Gerotormotor mit Schmiernuten

WASSERSTRAHLBELUEFTER FUER SANITAER-ARMATUREN UND DERGLEICHEN

Umlaufkolbenmotor fuer Fluessigkeitsgbetriebe

HYDRAULISCHE MASCHINE

Eine Art von Radialrollhydraulikmotor mit mehrreihigen Radialkugeln vom Kugelkolben-Typ

Eine Art von Radialrollhydraulikmotor mit mehrreihigen Radialkugeln vom Kugelkolben-Typ, beinhaltend beinhaltend ein Öldistributionselement, einen zylindrischer Rotor und einen Stator. Die vorliegende Erfindung generiert unter Einwirkung von Hochdruck-Hydrauliköl in Bezug auf einen Rotor ein Rotationsmoment, und kann gemäß des Eingabe-Hydraulikölflusses sowie des Druckausgangs eine entsprechende Rotationskraft erzeugen, wobei das Design kunstfertig, die Schmierwirkung zwischen den beweglichen Teilen gut, die Reibung klein, der Wirkungsgrad der Energieumwandlung hoch, der Energieverbrauch gering und der Betrieb stabil und sicher ist.

Hydraulischer Fahrzeug-Schwingungsdämpfer mit einer Rotationskolbenmaschine

Die Erfindung betrifft einen hdraulischen Schwingungsdämpfer im Fahrwerk eines Fahrzeugs, dessen zwischen Arbeitskammern überströmendes Hydraulikmedium durch eine als Zahnringpumpe ausgebildete Rotationskolbenmaschine geführt ist, an welche ein als Motor oder Generator betreibbare Elektromaschine angekoppelt ist, wobei die Zähne des Innenzahnrades der Rotationskolbenmaschine und/oder des dieses umgebenden Zahnringes der Rotationskolbenmaschine in einer die Drehachse der Rotationskolbenmaschine enthaltenden Schnittebene betrachtet im Übergang von zumindest einer ihrer Seitenflanken zur dem jeweiligen Gegenstück, d. h. dem Zahnring oder dem Innenzahnrad zugewandten Oberfläche hin, zumindest bereichsweise fasenartig oder abgerundet gestaltet sind. Damit wird die Geräuschentwicklung erheblich reduziert.

Radialkolbenmotor mit einer einzigen Koppelauswahlvorrichtung

Mehrwegehahn zur Steuerung doppelt wirkender Wassersaeulenmaschinen, bei dem die Druckwasserzufuhr durch das hohle Hahnkueken erfolgt

Wassersaeulenmaschine, deren Steuerung durch zwei auf der Kolbenstange befindliche Mitnehmer erfolgt

Axialkolbenmaschine mit in die Anschlussplatte integrierten Ventilschiebern

Die Erfindung betrifft eine Axialkolbenmaschine in Schrägachsenbauweise, deren Schwenkwinkel mittels eines Stellkolbens (50) und einem Stellventil (60) verstellbar ist.Erfindungsgemäß ist ein erster Ventilschieber (70) vorgesehen, welcher bezüglich einer ersten Ventilachse (71) linearbeweglich ist, wobei der erste Ventilschieber (70) an seinen beiden gegenüberliegenden Enden an den ersten bzw. den zweiten Fluidanschluss (23; 24) angeschlossen ist, wobei ein mittlerer Bereich (73) des ersten Ventilschiebers (70) eine Steuerstelle (77) definiert, wobei der erste Ventilschieber (70) so ausgebildet ist, dass an der Steuerstelle (77) der niedrigere der Drücke aus dem Druck am ersten Fluidanschluss (23) und dem Druck am zweiten Fluidanschluss (24) anliegt, wobei die Steuerstelle (77) über eine feste erste Drossel (81) und weiter über eine zweite Drossel (82) mit einem Innenraum (26) des Gehäuses (20) verbunden ist, wobei ein zweiter Ventilschieber (80) vorgesehen ist, der bezüglich einer zweiten ...

BREMSVORRICHTUNG MIT ZWEI RELATIV ZUEINANDER DREHBAREN TEILEN

Hydrostatic axial piston machine has cylinder drum that is arranged around axis of rotation in rotating manner and is provided with piston bores, where piston is longitudinally arranged in piston bores

The hydrostatic axial piston machine (1) has a cylinder drum (2) that is arranged around an axis of rotation in a rotating manner and is provided with piston bores (3). A piston (4) is longitudinally arranged in the piston bores, which is supported at an eccentric disk by a rolling body formed as roller (5). A safety equipment is provided, which allows an axial guidance of the roller in longitudinal direction of the rotational axis (R) of the roller and an anti-twist protection of the roller relative to the piston longitudinal axis (K).

Axial piston engine for use in hydraulic branch of drive train of motor vehicle, has load relieving surfaces, which are formed in slide bearing surface for hydrostatic relief and are independently subjected to high pressure

The axial piston engine (2) has a drive device with a pivoting swash plate (8), which is mounted on a slide bearing surface of a swash plate bearing (24) over another slide bearing surface. The pivoting angle (10) of the pivoting swash plate is adjusted for adjusting the displacement by a signal box (32). Two load relieving surfaces (64,66) are formed in the latter slide bearing surface for hydrostatic relief. The load relieving surfaces are independently subjected to high pressure and are relieved. The axial piston engine is constructed in swash plate design. An independent claim is included for a drive train of a motor vehicle with a hybrid gear.

HYDRAULISCH BETAETIGTES SCHLAGGERAET

Steuervorrichtung fuer einen Druckmittelmotor sowie Zufuehrungs- und Steuerventile dafuer

Hydraulic drive for use in mining region, has pressure controlled axial clearance compensation mechanisms such as guide plate, pressure plate, housing cover, screw and ball, compensating clearance of drive shaft

The drive (20) has a drive shaft (4) rotatably supported on a housing (1), and a rotor is provided on the drive shaft. A planetary gear (22) comprises a planetary wheel (2) that rotates a fixed toothed ring for driving the rotor. A pressure controlled axial clearance compensation mechanisms such as guide plate (3), pressure plate (5), housing cover (6), screw (7) and ball (8), compensates clearance of the drive shaft. An inlet pipe (12) and outlet pipe (34) guides a hydraulic fluid by pressure through the housing in a working space (11) for driving the planetary gear.

Antriebseinrichtung für eine Maschine, insbesondere Pumpe

Der Erfindung liegt die Aufgabe zugrunde, eine Antriebseinrichtung mit einer Hubverstelleinrichtung für eine Maschine mit mehreren Kolben-/Zylindereinheiten zu schaffen, die eine stufenlose Einstellung des Hubes der Kolben von Null bis zum maximalen Hub ermöglicht. DOLLAR A Die Antriebseinrichtung für eine mehrere Kolben-/Zylindereinheiten 2, 3 aufweisende Maschine besitzt zwischen einem Antrieb mit einer Antriebswelle 1 und den Kolben-/Zylindereinheiten 2, 3 eine Hubverstelleinrichtung 4. Die Hubverstelleinrichtung 4 besteht z. B. aus einer gabelförmigen Schwinge 6, die zwischen den beiden Gabelarmen eine Gabelarmachse 8 besitzt. Die Gabelarmachse 8 wird wiederum von einer Achse 10 gehalten. Der Fuß 7 der Schwinge 6 ist radial verschiebbar im Kurbelelement 5 angeordnet. Auf der Gabelarmachse 8 sind Pleuel 11 der Kolben 2 der Zylindereinheiten 3 gelagert. Die Gabelarmachse 8 führt beim Lauf der Antriebswelle 1 eine hin- und hergehende Bewegung aus. Die Hubhöhe der Kolben 2 richtet sich ...

DICHTLEISTE INSBESONDERE FUER DREHKOLBENMOTOR

Rotary vane motor

Rotary hydraulic motors

... 729,070. Rotary motors. CLIFFORD AERO & AUTO, Ltd., and STRETTON, H. J. Feb. 5, 1954 [Nov. 17, 1952], No. 28931/52. Class 110 (2). A hydraulic, reversible, motor comprises a rotor c, provided with axially-sliding vanes h, the ends of which move through wave-like working chambers j inside fixed rings f. The supply of liquid is controlled automatically in response to variations of pressure of the liquid. As shown there are twelve working chambers g in each ring, and twenty-one vanes. For driving the rotor in one direction, motive liquid enters a port k leading to a chamber i and ports 7, 9 and is exhausted through ports 6, 8, chamber and a port m. A transverse bore n contains a freely slidable shuttle valve o for controlling a passage p through which liquid can pass (see line 22) and actuates a servomotor piston 18. Movement of the latter displaces a rod y to rotate, through rack and pinion mechanism s, w, curved members q, r. These contain ports 13 of different lengths, Fig. 1, so that, ...

Improvements in or relating to hydraulic pumps or motors

... 661,652. Hydraulic motors; fluid pressure servomotor control systems. OILGEAR CO. July 16, 1947 [Jan. 14, 1942] No. 18957/47. Classes 69 (ii) and 135. Also in Group XXVIII. In a revolving cylinder hydraulic motor having a valve seat arranged upon the cylinder barrel and provided with a number of cylinder parts which communicate with the cylinders, a valve engaging the seat being provided with high and low pressure valve ports with which each cylinder port communicates alternately as the barrel rotates, a number of hold-up motors are arranged behind the valve to urge it against the seat, at least one balancing motor being provided for assisting the hold-up motors in urging the valve against the seat and the balancing motor being intermittently energized and de-energized in accordance with the number and angular positions of cylinder ports communicating with the high pressure port. Figs. 1 and 2 show a revolving cylinder type hydraulic pump. Fig. 2 being a section on the line 2-2 of Fig.

POWER UNITS

... 1406221 Reciprocating pumps; directacting I C engines; hydraulic accumulators W M B FITZGERALD 14 Nov 1972 [18 Nov 1971] 53721/71 Headings F1A, F1B and F1D A power unit, e.g. for supplying hydraulic pressure to vehicle wheel motors, comprises opposed compression-ignition engine pistons 104, Fig.1, abutting respective pump plungers 113 each reciprocable in a chamber 112 having a fixed displacement accumulator piston 123 which absorbs some of the pump discharge during the outward stroke and releases it to effect the return stroke. Movement of accumulator piston 123 is limited by a stop 129 and a sleeve 121 within which a piston 122 is slidable, space 124 containing pressurized gas, e.g. nitrogen, and space 125 containing oil, the quantity of which is adjustable via port 126. Liquid under pressure enters each pump chamber 112 via a chamber 132E, having a gas-loaded diaphragm 132D, and a quick-acting inlet check valve 133, comprising a spring-loaded grid member, Figs. 9 and 10 (not shown), ...

High torque rotary motor

HYDRAULIC MOTOR

... 1428155 Power steering mechanism A E VOGEL 21 Sept 1973 44444/73 Heading B7H [Also in Divisions F1 and F2] In a power steering system wherein an engine driven pump 82 circulates hydraulic fluid through a control unit 85-C and a cooler 88, an hydraulic reciprocating motor 1-A receives liquid leaving the unit 85-C and drives an air compressor 7-B for operation, e.g. the vehicle's automatic levelling system. The compressor charges a reservoir R-1 to a pressure between predetermined limits as determined by an unloading valve C1, (see Division F2) which controls operation of the motor. Air from the reservoir is directed by air springs 93, 95 in response to the position of an automatic levelling valve C-3. A further reservoir R-2 receives air from the reservoir R-1 through a reducing valve C-2, the air in the reservoir R-1 being used to operate diaphragm or bellows actuators connectable to outlets L-1 ... L-4.

Improvements in or relating to fluid pressure engines for producing oscillatory motion

... 716,776. Fluid pressure motors. ARNDT, F. Dec. 18, 1952 [Dec. 18, 1951], No. 32128/52. Class 110(2) A fluid pressure motor with an oscillating piston, comprises a cylinder 4 in which is mounted the piston consisting of a shaft 1, vane 2, and circular end plates 3, the cylinder being fitted with a partition 6 extending radially to the shaft 1, and with means for introducing fluid into and exhausting it from the two chambers formed by the partition and the vane. The vane extends from one plate 3 to the other and from the shaft to the cylinder wall, while the plates extend to the cylinder walls. By this construction, especially when the parts are accurately ground, pressure losses normally due to large clearances are reduced to a minimum. In a modification Fig. 3 (not shown) the vane is mounted in radial slots in the end discs and in a longitudinal groove in the shaft; helical springs in this case urge the vane outwardly against the cylinder wall. Leakage is further prevented in this case ...

RADIAL PISTON PUMP OR MOTOR

... 1460255 Reciprocating pumps and motors ROBERT BOSCH GmbH 7 March 1975 [16 March 1974] 9659/75 Heading F1A In a radial piston pump or motor comprising a rotary cylinder block 6 supported on a stationary valve pintle 5 and having pistons 8 engaging an eccentric track ring 10 via slippers 9, the bearing capacity of hydrostatic bearing fields, produced between the cylinder block and pintle by grooves 22 to 25 on each side of inlet and outlet ports 18, 19, is increased by the provision of further grooves 40 to 43 and 46 to 49 in the lands 36, 37 between the ports 18, 19. Grooves 22 and 24 are connected by a bore 35, and grooves 23 and 25 by a bore 34. Grooves 41, 43 and 46, 48 are connected to port 19 by ducts 54 to 57 respectively, and grooves 40, 42 and 47, 49 to port 18 by ducts 52, 53, 58, 59, respectively. Each duct may have a throttle 60. Slippers 9 are held on track ring 10 by rings 11, 12. Drive-shaft 13 is coupled to cylinder block 6 by a coupling disc 17 with interengaging dogs and ...

Improvements in or relating to fluid actuated reciprocating pumps

... 1,090,392. Reciprocating pumps and motors. P. HAMMELMANN. Feb. 25, 1965 (Feb. 27, 1964; May 21, 1964], No. 8087/65. Heading F1A. In a fluid-pressure actuated pump which comprises a hollow plunger 8 reciprocating in pump chambers 5 and 6, the plunger reciprocates over a stationary motor piston 9 containing an actuating fluid change-over valve 19. The valve 19 is oscillated by fluid-pressure fed to chamber (34) Fig. 3 (not shown), on either side a segment (35) secured to the valve. The feeding of fluid-pressure to the valve chamber (34) is controlled by spool valves (22 and 23) actuated by the inner faces of the plunger heads. In a further embodiment, Figs. 5 to 7 (not shown) an actuating fluid changeover valve (54) is movable axially within a cylinder formed in the motor piston (9) under the control of a plunger actuated spool valve (69). The pressure fluid may be oil.

Fluid Pressure Reciprocating Motor

... 1,160,270. Hydraulic and pneumatic reciprocating motors; valve gear. DOWTY TECHNICAL DEVELOPMENTS Ltd. Nov. 22, 1966 [Nov. 25, 1965], No. 50088/65. Headings F1A, F1M and F1S. A hydraulic or pneumatic motor for actuating a portable tool, e.g. a drill, has differential working chambers 7 and 8, chamber 8 being continuously supplied with pressure fluid from connection 9, and chamber 7 being alternately connected to supply and exhaust by a slide valve 19 actuated by fluid-pressure controlled by valve means 14, 15 on the motor piston section 3. To prevent pulsations in the low-pressure hose connection 12, it is connected by pipe 36 to a chamber 31, which increases in volume as working chamber 7 decreases in volume, so that during the upward stroke of piston 1 part of the exhaust fluid from chamber 7 passes to chamber 31 and the rest through connection 12. On the following downward stroke, the fluid in chamber 31 passes to connection 12. The effective surface areas of the piston 1 in chambers ...

Improvements relating to Hydraulic Reciprocating Motors

... 1,189,373. Hydraulic reciprocating motors. PLESSEY CO. Ltd. Feb. 15, 1968 [Feb. 15, 1967], No. 7341/67. Heading F1A. A hydraulic motor for rotating a radar aerial, comprises a rotor 1 with an aerial, mounting flange 2 and radial cylinders 10 with ball pistons 6 engaging a multi-lobed cam track 9. Cylinder ports 13,14 sequentially communicate with supply and exhaust ports in a sleeve 16. A drip tray 37 collects leakage passing seals 34, 35. The rotor is supported by bearings 4 and 5, and has a through passage 30 for waveguides and cables for the aerial. In Fig. 1 (not shown), two banks of pistons are employed.

Improvements in or connected with Hydraulic Pumps, Motors and like Apparatus.

... 9374. Carey, R. F. April 21. [Addition to 19,519/11.] Revolving-cylinder pumps.-The hydraulic pump or motor described in the parent Specification is provided with improved means for relieving pressure in the cylinders. The dividing-rib 17 of the central valve 16, Fig. 3, is provided with a diametral passage i, the dividing-rib being preferably tapered as at j, and provided with wings k. When the cylinder of the incoming piston is closed by the valve, communication is established with the opposite outgoing cylinder and thus prevents undue rise of pressure. In order to admit liquid gradually, the edges of the side wings of the dividing-rib may be notched.

HYDRAULIC MOTORS AND TO DRIVING SYSTEMS EMPLOYING SAME

... 1413109 Hydrostatic transmission control RENOLD Ltd 7 Dec 1972 [9 Dec 1971 7 March 1972] 57161/72 and 10463/72 Heading F2W [Also in Division F1] An hydraulic system comprises a variable delivery pump P connected in a closed loop 153, 154 with a radial cylinder rotary cylinder block motor M, the motor, Fig. 1, having at least two rows of cylinders and a valve 102 movable to cut off the pump supply to at least one cylinder row. A manually or solenoid operated valve S is operated when it is required to re-position the valve 102. In Fig. 1 the valve 102 is shown urged to the left by supply pressure in a tube 103, a space 150 being connected to a booster pump B through a tube 101, 101a, 101d, the valve S and a conduit 155. Changeover of the valve S directs pump pressure through a non- return valve 162 to the space 150, whereby the valve 102 moves rightwards and connects the lefthand row of cylinders to exhaust 13a. In a modification, Fig. 3 and 6 (not shown), the pistons in an unpressurised ...

HYDRAULIC MOTOR

Piston and cylinder arrangement with reversing valve disposed in the piston.

Fluid under pressure supplied to a hollow chamber (5) in a piston head (4) is fed successively to opposite cylinder spaces (13, 14) having bleed holes (11, 12). The piston head (4) is provided with a first bore providing communication between the chamber (5) and the first space (13) and a second bore providing communication between the chamber (5) and the second space (14), the first and second bores having valve seats (15, 16) on their end regions facing the chamber and being larger than the bleed holes (11, 12). A resiliently flexible valve member (18) co-operates with the first and second valve seats (15, 16) so as successively to block off the first and second bores respectively. An elongate element (21) carries the valve member (18) and has first and second end regions (22, 23) projecting through the opposing faces of the piston head (4) into the first and second spaces (13, 14). In use, fluid supplied to the chamber (5) is switched from one space to the other when the elongate member ...

Inclined shaft-type variable displacement pump/motor

FLUID-PRESSURE DOWN-HOLE DRILLING MOTOR

Hydraulic motor system

A hydraulic motor system especially but not exclusively for use to drive a rotary exerciser for animals comprises a hydraulic motor, inlet means thereto for hydraulic fluid, outlet means therefrom for hydraulic fluid and valve means (10) adapted to sense a relative increase in fluid pressure between said outlet means and said inlet means and in response thereto to close said inlet or outlet means. ...

Inner and outer motor with eccentric stabilizser

Improvements relating to semi-rotary motors

... 623,229. Semi-rotary engines. TRICOFOLBERTH, Ltd., ANGUS & CO., Ltd., G., COX, H. A., and BROWN, W. H. March 4, 1947, Nos. 6192/47 and 5141/48. [Class 110(ii)] The piston 2 of a fluid-pressure motor is provided with sealing means comprising a single ring 9 of flexible material which extends around its periphery. The piston may be formed in two parts 4, 5 screwed together and attached to stub axles 10, 11 or formed in one piece. The groove in the piston may be wider than the ring 9 so that the latter may roll to a slight degree when the piston changes its direction of motion. Additional sealing rings 14 may be provided. Alternatively the ring 9 may be moulded integrally with two eyes 17, Fig. 6 (not shown) either, in planes at right angles to the plane of the ring, or lying in the same plane and being twisted to fit over the spindle ends. The material of the ring may be synthetic rubber or a polyvinyl chloride plastic.

Piston machine

... 1,090,382. Reciprocating motors pumps and compressors. M. GLAS. Jan. 29, 1965 [Jan. 30, 1964], No.4048/65. Headings F1A, F1N and F1P. An hydraulic or pneumatic apparatus having a piston slidable in an open ended cylinder, axially movable into engagement with one or other of two spaced apart cover members to form a closed cylinder may be constructed to function as a single stroke motor, pump or compressor. The construction of Fig. 1 is a hydraulic single stroke motor. The motor comprises a piston 8 in a cylinder 4 axially movable by thrust pistons 35 into engagement with covers 2, 3 which form the end closure members of a cylinder jacket 1 radially spaced from the cylinder 4 to define an annular flow channel 1'. A pistod rod 7 secured to piston 8 is provided with two shoulders 21, 22 forming quick-traverse pistons disposed in respective cylinders 17, 18 provided in the covers 2, 3. Each cover 2, 3 is provided with two closed bores, in one of which is slidable a control piston 42 and in the ...

RADIAL PISTON MOTOR HAVING A MECHANICAL BRAKE ASSEMBLY

A radial piston motor for operation together with a mechanical brake assembly. For the release of the brake assembly pressure medium is derived from the radial piston motor itself and is supplied to the brake assembly. The pressure medium is supplied to a brake chamber 35 via a ring gap 41. Pressure medium reaches the gap 41 either through internal leakage (Fig. 6 not shown) or via a valve 40 from whichever of the two ports A, B is at the lowest pressure. In use a booster pump (65, Fig. 4) may supply the lower pressure port A or B from which the pressure medium is directed to release the brake. ...

IMPACTING APPARATUS

HYDRAULIC MOTORS

Improvements in or relating to arrangements for maintaining uniform leakage gaps between the rotor and valve plate of high pressure piston pumps and motors

... 946,017. Reciprocating pumps and motors. HONDAILLE INDUSTRIES Inc. April 24, 1962, No. 15592/62. Heading F1A. A ported valve plate 24 is slidably mounted in a guide ring 65 and a valve housing 64 provided with inlet and outlet passages connected to the valve ports 91, 90. The ring 65 and valve plate 24 are urged into contact with the end face of a cylinder rotar by. separate springs and the valve plate 24 has balance pistons 80, 81 communicating through passages 84, 85 with the end face. In addition a balance chamber 68 is formed behind the valve plate 24 and communicates through a small annular gap 551 between the valve plate and ring 65, with the end face; the end face also has a groove 92 which is connected by a passage 93 to the chamber 68. A small leakage groove (89 not shown) connects the chamber 68 to the low pressure port.

Down hole drilling motor with lobed stator of nitrile rubber

The down hole drilling motor, eg of the progressing cavity or Moineau type, comprising a tubular housing 12, eg of steel, enclosing a lobed stator 20 of nitrile rubber which defines a cavity 34 within which a lobed rotor 22 is caused to rotate by applying fluid pressure to the cavity 34. The stator 20 may be formed from a compound comprising nitrile rubber having about 35% by weight acyrlonitrile, a Mooney viscosity of about 50 (35-5 NBR) and a hardness of less than 90 Shore A. Various other structural properties of the compound including tensile strength, elongation at break, tear strength, tensile modulus, compression modulus, E', E'' and tan s are specified. The stator compound has improved manufacturing and performance characteristics.

Hydraulic displacement unit

HYDRAULIC MACHINES

Vibration Jacks

An improved vibration jack is presented wherein the excess energy which might develop from overpressurizations and cause loss of control, is absorbed. This excess energy is transmitted to fluid within a chamber by means of an extension of the jack piston rod. Maintaining the fluid in the chamber at a constant pressure, and allowing discharge of fluid when this pressure is exceeded allows the fluid to absorb any excess energy.

Improvements in hydraulic piston and cylinder machines

A hydraulic piston and cylinder machine includes a plurality of pistons and cylinders, a ring of ports for alternatively supplying fluid into, and for allowing the fluid to be discharged from each cylinder, and a cam having a plurality of lobes to control the displacement of the pistons in a cylinder block with respect to the progression of the cylinder block along the direction of the cam or vice versa. Each of the pistons traverses each of the cam lobes during a full rotation of the machine to undergo a number of piston strokes equal to the number of lobes. A control valve is adjustable to route working fluid discharged through at least one of the fluid discharge ports of the machine to the exhaust fluid outlet of the machine during each full rotation of the machine via an isolated pressure zone of the machine. In this zone the pressure of fluid is maintained at a level intermediate the supply and exhaust pressures of working fluid to and from the machine, so as to reduce the capacity ...

Радиально-поршневой гидромотор

Радиально-поршневой гидромотор, содержащий корпус, в котором с возможностью качания установлены взаимодействующие с эксцентриковым валом поршневые группы, каждая из которых имеет цилиндр с распределительным каналом для попеременного сообщения рабочей камеры поршневой группы с распределительными окнами высокого и низкого давлений, отличающийся тем, что опорные поверхности цилиндров выполнены сферическими, а цилиндры установлены в закрепленных на корпусе опорах, имеющих опорные поверхности, ответные опорным поверхностям цилиндров, распределительные каналы в цилиндрах выполнены на оси поршневой группы, а поршни и цилиндры подпружинены относительно друг друга элементом, работающим на сжатие. (19) RU (11) (13) 1 342 U1 (51) МПК F03C 01/04 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 93000721/29, 06.01.1993 (46) Опубликовано: 16.12.1995 (71) Заявитель(и): Научно-производственное предприятие Санина "Солитон" (73) Патентообладатель(и): Научно-производственное предприятие Санина "Солитон" U 1 1 3 4 2 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Радиально-поршневой гидромотор, содержащий корпус, в котором с возможностью качания установлены взаимодействующие с эксцентриковым валом поршневые группы, каждая из которых имеет цилиндр с распределительным каналом для попеременного сообщения рабочей камеры поршневой группы с распределительными окнами высокого и низкого давлений, отличающийся тем, что опорные поверхности цилиндров выполнены сферическими, а цилиндры установлены в закрепленных на корпусе опорах, имеющих опорные поверхности, ответные опорным поверхностям цилиндров, распределительные каналы в цилиндрах выполнены на оси поршневой группы, а поршни и цилиндры подпружинены относительно друг друга элементом, работающим на сжатие. 1 3 4 2 (54) Радиально-поршневой гидромотор R U (72) Автор(ы): Закомолдин В.В., Санин Б.Н. RU 1 342 U1 RU 1 342 U1 RU 1 342 U1 RU 1 342 U1 RU 1 342 U1 RU 1 342 U1 RU ...

КРИВОШИПНЫЙ МЕХАНИЗМ ОБРАТИМОЙ МАШИНЫ

1. Кривошипный механизм обратимой машины, содержащий корпус с установочными участками, размещенный на них блок цилиндров, включающий две рабочие камеры и поршень, вал, связанный с поршнем, и систему каналов для подачи и отвода рабочего тела в рабочие камеры, отличающийся тем, что корпус образован двумя крышками и прямоугольной рамкой, выполненной на одной из крышек, установочные участки выполнены на обращенных друг к другу параллельных поверхностях крышек, рабочие камеры образованы указанными установочными участками, прямоугольной рамкой и внутренней прямоугольной рамкой, установленной в первой с возможностью возвратно-поступательного перемещения по двум параллельным направляющим, с образованием надпоршневой и подпоршневой полостей, поршень установлен во внутренней рамке с возможностью возвратно-поступательного перемещения по двум параллельным направляющим с образованием надпоршневой и подпоршневой полостей, пары направляющих рамок взаимно перпендикулярны и сформированы сторонами последних, вал выполнен с кривошипом, в поршне и в одной из крышек корпуса соответственно выполнены отверстия с параллельными осями, совпадающими с осями вала и кривошипа, в отверстии корпуса размещен вал, в отверстии поршня размещен кривошип, а система каналов выполнена в виде отверстий в вале, золотника, выполненного в теле кривошипа и имеющего полости, сообщенные с соответствующими отверстиями вала, четырех отверстий в поршне, попарно сообщенных соответственно с надпоршневой и подпоршневой полостями рабочей камеры во внутренней рамке и с надпоршневой и подпоршневой полостями - с рабочей камерой в рамке корпуса через соответствующие окна, выполненные на противоположных сторонах внутренней рамки, на которых сформированы направляющие для поршня. 2. Механизм по п.1, отличающийся тем, что золотник образован двумя сегментными проточками, расположенными с противоположных сторон кривошипа, разделенных перегородкой, толщина которой меньше ширины отверстий в поршне, а длина окон в стенках ...

АКСИАЛЬНО-ПОРШНЕВОЙ МНОГОХОДОВОЙ РЕВЕРСИВНЫЙ ГИДРОМОТОР БОЛЬШОГО МОМЕНТА

Аксиально-поршневой многоходовой реверсивный гидромотор большого момента, содержащий корпус, силовую крышку с каналами нагнетания и слива, приводной вал с установленным на нем блоком цилиндров с поршнями и шариками, опирающимися на волнообразную поверхность неподвижной опоры, отличающийся тем, что вал гидромотора установлен в подшипниках качения, а уплотнение вала установлено в съемной втулке. (19) RU (11) 10 790 (13) U1 (51) МПК F03C 1/12 (1995.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 99101627/20, 26.01.1999 (24) Дата начала отсчета срока действия патента: 26.01.1999 (46) Опубликовано: 16.08.1999 (72) Автор(ы): Тароянц А.П. (73) Патентообладатель(и): Открытое акционерное общество "Специальное конструкторское бюро приборостроения и автоматики" U 1 1 0 7 9 0 R U Ñòðàíèöà: 1 ru CL U 1 (57) Формула полезной модели Аксиально-поршневой многоходовой реверсивный гидромотор большого момента, содержащий корпус, силовую крышку с каналами нагнетания и слива, приводной вал с установленным на нем блоком цилиндров с поршнями и шариками, опирающимися на волнообразную поверхность неподвижной опоры, отличающийся тем, что вал гидромотора установлен в подшипниках качения, а уплотнение вала установлено в съемной втулке. 1 0 7 9 0 (54) АКСИАЛЬНО-ПОРШНЕВОЙ МНОГОХОДОВОЙ РЕВЕРСИВНЫЙ ГИДРОМОТОР БОЛЬШОГО МОМЕНТА R U Адрес для переписки: 601903, Ковров, Владимирской обл., ул.Крупской 55, ОАО "СКБ ПА" (71) Заявитель(и): Открытое акционерное общество "Специальное конструкторское бюро приборостроения и автоматики" U 1 U 1 1 0 7 9 0 1 0 7 9 0 R U R U Ñòðàíèöà: 2 RU FD 10 790 U1 RU 10 790 U1 RU 10 790 U1 RU 10 790 U1 RU 10 790 U1 RU FA 10 790 U1 RU DR 10 790 U1 RU 10 790 U1 RU 10 790 U1

ГИДРОМЕХАНИЧЕСКИЙ ДВИГАТЕЛЬ

Гидромеханический двигатель, содержащий коленчатый вал, соединенный через шатуны с поршнями, расположенными в рабочих цилиндрах с жидкостью, которые подсоединены водопроводами к вспомогательным цилиндрам с поршнями, связанными с коленчатым валом, отличающийся тем, что на дне рабочих цилиндров герметично закреплены внутренние цилиндры, заполненные воздухом и накрытые свободно расположенными в рабочих цилиндрах перевернутыми стаканами, погруженными в жидкость, поршни в рабочих цилиндрах при этом выполнены в виде поплавков, а внутренние цилиндры соединены между собой воздуховодом, поршни вспомогательных цилиндров связаны с коленчатым валом через штоки (толкатели) и эксцентрики. (19) RU (11) 13 674 (13) U1 (51) МПК F03C 1/02 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 99125630/20, 06.12.1999 (24) Дата начала отсчета срока действия патента: 06.12.1999 (71) Заявитель(и): Общество с ограниченной ответственностью "Веттос" (72) Автор(ы): Кудрин И.В. Адрес для переписки: 113162, Москва, ул. Городская 6-1, ООО "Веттос" (73) Патентообладатель(и): Общество с ограниченной ответственностью "Веттос" U 1 1 3 6 7 4 R U Ñòðàíèöà: 1 ru CL U 1 (57) Формула полезной модели Гидромеханический двигатель, содержащий коленчатый вал, соединенный через шатуны с поршнями, расположенными в рабочих цилиндрах с жидкостью, которые подсоединены водопроводами к вспомогательным цилиндрам с поршнями, связанными с коленчатым валом, отличающийся тем, что на дне рабочих цилиндров герметично закреплены внутренние цилиндры, заполненные воздухом и накрытые свободно расположенными в рабочих цилиндрах перевернутыми стаканами, погруженными в жидкость, поршни в рабочих цилиндрах при этом выполнены в виде поплавков, а внутренние цилиндры соединены между собой воздуховодом, поршни вспомогательных цилиндров связаны с коленчатым валом через штоки (толкатели) и эксцентрики. 1 3 6 7 4 (54) ГИДРОМЕХАНИЧЕСКИЙ ДВИГАТЕЛЬ R U (46) Опубликовано ...

ВОЛНОВОЙ ГИДРО(ПНЕВМО)ДВИГАТЕЛЬ

Волновой пневмо(гидро)двигатель, содержащий корпус, выходной вал с опорно-поворотным устройством, штуцеры подвода и слива рабочего тела, каналы связи, плунжерный волнообразователь, гибкое и жесткое колеса волновой передачи и распределительное устройство с распределительным валиком, отличающийся тем, что корпус волнового гидро(пневмо)двигателя выполнен из трех частей, первая содержит распределительное устройство со штуцерами подвода и слива рабочего тела и каналами связи, вторая содержит гибкое и жесткое колеса волновой передачи и выходной вал с опорно-поворотным устройством, а третья содержит плунжерный волнообразователь и переходную плату, жестко соединенную с первой частью корпуса, переходная плата и распределительное устройство имеют согласованные стыковочные поверхности, гибкое колесо выполнено в виде гладкого гибкого кольца, а жесткое колесо выполнено в виде отслеживающего диска, который связан с выходным валом, например, через шлицевую муфту, и с распределительным валиком с помощью оси, проходящей через центральные отверстия в плунжерном волнообразователе, переходной плате и распределительном устройстве. (19) RU (11) 14 061 (13) U1 (51) МПК F16H 1/00 (2000.01) F03C 5/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 99127832/20, 29.12.1999 (24) Дата начала отсчета срока действия патента: 29.12.1999 (71) Заявитель(и): Московский государственный авиационный институт (технический университет) Адрес для переписки: 125871, Москва, ГСП, Волоколамское шоссе,д. 4, МАИ 1 4 0 6 1 R U (57) Формула полезной модели Волновой пневмо(гидро)двигатель, содержащий корпус, выходной вал с опорно-поворотным устройством, штуцеры подвода и слива рабочего тела, каналы связи, плунжерный волнообразователь, гибкое и жесткое колеса волновой передачи и распределительное устройство с распределительным валиком, отличающийся тем, что корпус волнового гидро(пневмо)двигателя выполнен из трех частей, первая содержит ...

ВОДЯНОЙ ДВИГАТЕЛЬ

Водяной двигатель состоит из корпуса, заполненного уплотненной водой статического состояния, внутри которого смонтирован вертикально с возможностью свободного вращения сборный ротор; вал ротора зафиксирован у дна корпуса втулкой к полу, а вверху также втулкой к корпусу перемычками, вал ротора через верх корпуса выходит наружу; внизу на валу ротора закреплен герметичный полый диск; к поверхности диска закреплена меньших размеров полая герметичная емкость; на свободной поверхности по всей окружности диска закреплены полые герметичные трубчатые стойки, верх которых закреплен к валу ротора; на стойках внизу и вверху с возможностью свободного вращения смонтированы на валу по две шестерни, которые попарно по вертикали соединены между собой элеваторно-грузовыми цепями; цепи соединены между собой с небольшим наклоном относительно горизонтали справа налево дырчатыми дугообразной формы лотками; внизу шестеренчатые валы соединены с редукторами; редукторные шестерни входят в зацепление с шестерней, содержащей внутреннее зацепление и закрепленной к корпусу; в лотки снизу вверх по всей окружности ротора витками уложен гибкий шланг, название условное, который может быть заменен на другие изделия, который вверху корпуса выходит наружу через уплотненное отверстие в корпусе, огибая блок, снова заходит внутрь корпуса, между дном корпуса и диском имеется полость, в которой с возможностью свободного вращения смонтированы ролики, на которые через диск опирается ротор. (19) RU (11) 17 949 (13) U1 (51) МПК F03C 2/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2000123027/20 , 04.09.2000 (24) Дата начала отсчета срока действия патента: 04.09.2000 (46) Опубликовано: 10.05.2001 (72) Автор(ы): Гильчук В.А. (73) Патентообладатель(и): Гильчук Владимир Андреевич R U Адрес для переписки: 153031, г.Иваново, 2-й пер.Бабушкина, 10, В.А.Гильчуку (71) Заявитель(и): Гильчук Владимир Андреевич Ñòðàíèöà: 1 1 7 9 4 9 R U U 1 ( ...

ВОДЯНОЙ ДВИГАТЕЛЬ

1. Водяной двигатель, включающий питательную емкость, коленчатый вал с маховиком и опорами коренных подшипников, шатуны, поршень-понтон, рабочие камеры, например гильзы цилиндров, расположенные ниже коленчатого вала, при этом между поршнем-понтоном и гильзой цилиндра имеется зазор без уплотнения, подводящие и отводящие трубы, впускной и выпускной клапаны, распределительное устройство, например распределительный вал с впускным и выпускным кулачками, направляющий стержень с направляющей втулкой, а поршень снабжен кронштейном, отличающийся тем, что поршень-понтон выполнен полым и снабжен клапанами перетока, срабатывающими в его нижнем и верхнем положениях. 2. Двигатель по п.1, отличающийся тем, что детали, расположенные ниже коленчатого вала, установлены в горной выработке, например буровой скважине, пересекающей проницаемый, поглощающий интервал, с установленными в ней двумя соосными колоннами обсадных труб большего и меньшего диаметра, при этом питательная емкость образована кольцевым объемом между обсадными колоннами и имеющим сообщение с возобновляемым источником воды, например с подземным водоносным горизонтом, а рабочая камера образована объемом обсадной колонны меньшего диаметра, которая имеет дно с установленным в ней выпускным клапаном и частично перфорированные стенки, а впускной клапан выполнен в виде перфорированного кольца, установленного в колонне меньшего диаметра с возможностью возвратно-поступательного перемещения и снабженного толкателями, выходящими до устья скважины с упором, взаимодействующим с выпускным клапаном, при этом отверстия в стенках обсадной колонны меньшего диаметра и в перфорированном кольце выполнены совпадающими при одном его крайнем положении и несовпадающими при другом крайнем положении, а толкатели имеют кинематическую связь с распределительным валом, причем ниже обсадных колонн расположен пересекаемый скважиной проницаемый, поглощающий интервал. (19) RU (11) 22 510 (13) U1 (51) МПК F03C 1/02 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ...

ПНЕВМОГИДРОСТАТИЧЕСКИЙ ДВИГАТЕЛЬ

1. Пневмогидростатический двигатель, включающий первую емкость, коленчатый вал с маховиком и опорами коренных подшипников, шатуны, поршни-понтоны, вторую емкость, заполненную водой, расположенные ниже коленчатого вала, подводящие и отводящие трубы, впускной и выпускной клапаны, распределительное устройство, например распределительный вал с впускным кулачком, направляющий стержень, а поршень-понтон снабжен направляющей втулкой и кронштейном, отличающийся тем, что первая емкость заполнена сжатым газом, например сжатым воздухом, а поршень-понтон выполнен в виде газонаполняемой камеры с возможностью изменять свой "погружной" объем под действием гидростатического давления, например, в виде "колокола". 2. Пневмогидростатический двигатель по п.1, отличающийся тем, что второй емкостью является горная выработка, например, буровая скважина. 3. Пневмогидростатический двигатель по п.1, отличающийся тем, что второй емкостью является природный водоем, а двигатель установлен на плавучей платформе. (19) RU (11) 22 804 (13) U1 (51) МПК F03C 1/02 (2000.01) F02B 29/08 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 2001125578/20 , 20.09.2001 (24) Дата начала отсчета срока действия патента: 20.09.2001 (46) Опубликовано: 27.04.2002 (72) Автор(ы): Елисеев А.Д., Елисеев Д.А. 2 2 8 0 4 R U (57) Формула полезной модели 1. Пневмогидростатический двигатель, включающий первую емкость, коленчатый вал с маховиком и опорами коренных подшипников, шатуны, поршни-понтоны, вторую емкость, заполненную водой, расположенные ниже коленчатого вала, подводящие и отводящие трубы, впускной и выпускной клапаны, распределительное устройство, например распределительный вал с впускным кулачком, направляющий стержень, а поршень-понтон снабжен направляющей втулкой и кронштейном, отличающийся тем, что первая емкость заполнена сжатым газом, например сжатым воздухом, а поршень-понтон выполнен в виде газонаполняемой камеры с возможностью ...

Гидродвигатель

Гидродвигатель, включающий корпус (статор) с криволинейными поверхностями, ротор с валом, поршни, направляющие каретки с осями и роликами, отличающийся тем, что в каждый цилиндр ротора устанавливается дополнительный поршень, при этом один из поршней - наружный, а другой - внутренний, причем наружный поршень устанавливается с возможностью, когда необходимо, фиксироваться в неподвижном положении посредством специального захвата, входящего в кольцевую канавку наружного поршня и приводимого в действие штоком с пружинами и поршеньком, управляемым гидравликой. (19) RU (11) 32 205 (13) U1 (51) МПК F03C 1/03 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2003112838/20 , 05.05.2003 (24) Дата начала отсчета срока действия патента: 05.05.2003 (46) Опубликовано: 10.09.2003 (72) Автор(ы): Баринов В.А. (73) Патентообладатель(и): Баринов Василий Александрович R U Адрес для переписки: 454080, г.Челябинск, а/я 12546 (71) Заявитель(и): Баринов Василий Александрович 3 2 2 0 5 R U Ñòðàíèöà: 1 U 1 (57) Формула полезной модели Гидродвигатель, включающий корпус (статор) с криволинейными поверхностями, ротор с валом, поршни, направляющие каретки с осями и роликами, отличающийся тем, что в каждый цилиндр ротора устанавливается дополнительный поршень, при этом один из поршней - наружный, а другой - внутренний, причем наружный поршень устанавливается с возможностью, когда необходимо, фиксироваться в неподвижном положении посредством специального захвата, входящего в кольцевую канавку наружного поршня и приводимого в действие штоком с пружинами и поршеньком, управляемым гидравликой. 3 2 2 0 5 U 1 (54) Гидродвигатель U 1 U 1 3 2 2 0 5 3 2 2 0 5 R U R U Ñòðàíèöà: 2 RU 32 205 U1 RU 32 205 U1 RU 32 205 U1 RU 32 205 U1 RU 32 205 U1

ОБЪЕМНЫЙ ГИДРОДВИГАТЕЛЬ-ГИДРОЭЛИПС. ВЕЗДЕХОД. РОБОТ

1. Объемный гидродвигатель-гидроэлипс, отличающийся тем, что представляет собой герметичную емкость из гибкого материала продолговатой элипсной формы, с обеих наиболее заостренных сторон которой установлены тяги-канаты и также емкость имеет одно или более отверстий. 2. Вездеход представляет собой корпус-звено, отличающийся тем, что к корпусу крепится четыре или более ног и корпус с каждой ногой входят в шаровую трехподвижную кинематическую пару, а нога представляет собой простую открытую кинематическую цепь из двух или более звеньев, причем звенья ноги, которые соединены между собой, представляют собой шаровую трехподвижную или вращательную кинематическую пару и при этом к звену ноги (которое соединяется с корпусом) присоединены два или более объемных гидродвигателя-гидроэлипса с помощью одной из своих тяг-канатов, а другая тяга-канат каждого объемного гидродвигателя-гидроэлипса крепится к корпусу и также к звеньям ноги, соединенным между собой, с помощью тяг-канатов прикреплены по одному или более объемных гидродвигателя-гидроэлипса, а на конце звена ноги, наиболее удаленного от корпуса находится конечный выключатель, и в корпусе установлен жидкостный насос, приводимый во вращение электродвигателем, аккумулятор и микропроцессорная система, причем к насосу с помощью трубопровода, через гидрораспределители с электроуправлением, подсоединяется каждая емкость каждого объемного гидродвигателя-гидроэлипса. 3. Робот представляет собой сложную открытую кинематическую цепь из шести и более звеньев, отличающийся тем, что каждая пара звеньев кинематической цепи - вращательная или шаровая трехподвижная, а форма и пропорции звеньев выполнены аналогично костям и суставам животного организма (или человека), по типу которого изготовляется робот, и к каждой паре звеньев с помощью тяг-канатов присоединен один или более объемных гидродвигателя-гидроэлипса, аналогично как связки мышц у животного организма, а размеры каждого объемного гидродвигателя-гидроэлипса соответствуют размеру ...

ГИДРОМОТОР

Гидромотор, содержащий неподвижный корпус, ротор, рабочую камеру, отличающийся тем, что он снабжен крестовиной, вынесенной на поверхность ротора и закрепленной в гнезде так, что одна из ее лопаток выступает над ротором и соприкасается с внутренней поверхностью корпуса ротора, при этом крестовина осями прикреплена с возможностью вращения к двум планшайбам, жестко закрепленным с боков на роторе. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 56 495 (13) U1 (51) МПК F03C 2/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2005106486/06 , 09.03.2005 (24) Дата начала отсчета срока действия патента: 09.03.2005 (45) Опубликовано: 10.09.2006 (72) Автор(ы): Сухов Валерий Никифорович (RU) (73) Патентообладатель(и): Сухов Валерий Никифорович (RU) U 1 5 6 4 9 5 R U Ñòðàíèöà: 1 U 1 Формула полезной модели Гидромотор, содержащий неподвижный корпус, ротор, рабочую камеру, отличающийся тем, что он снабжен крестовиной, вынесенной на поверхность ротора и закрепленной в гнезде так, что одна из ее лопаток выступает над ротором и соприкасается с внутренней поверхностью корпуса ротора, при этом крестовина осями прикреплена с возможностью вращения к двум планшайбам, жестко закрепленным с боков на роторе. 5 6 4 9 5 (54) ГИДРОМОТОР R U Адрес для переписки: 302001, г.Орел, ул. Р. Люксембург, 54, кв.125, В.Н.Сухову U 1 U 1 5 6 4 9 5 5 6 4 9 5 R U R U Ñòðàíèöà: 2 RU 5 10 15 20 25 30 35 40 45 50 56 495 U1 Изобретение относится к гидромашиностроению и может быть применено для передачи энергии вращения от основного двигателя к агрегатам. Известен гидромотор, содержащий неподвижный корпус, ротор, рабочую камеру (см. авт. свид. СССР №1333820, кл. Р О3 С 2/00, 1985г.) Недостатком известного гидромотора является недостаточная эффективность работы, низкий КПД и недолговечность; механическая трансмиссия не всегда надежна, громоздка, с большими энергозатратами, сложная в управлении. Целью настоящего изобретения ...

РАДИАЛЬНО-ПОРШНЕВОЙ ГИДРОМОТОР

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ВЫСОКОМОМЕНТНЫЙ БИРОТАЦИОННЫЙ ГИДРО (ПНЕВМО) МОТОР ДУДИНА

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ЭЛЕКТРОГИДРАВЛИЧЕСКИЙ ДВИГАТЕЛЬ

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ГИДРОМОТОР ВНУТРЕННЕГО ЗАЦЕПЛЕНИЯ

Полезная модель относится к машиностроению, в частности к гидромоторам внутреннего зацепления, предназначенным для гидропривода рабочих органов различных машин. Технический результат предлагаемой полезной модели заключается в обеспечении работоспособности соединения гильзы с крышкой гидромотора при работе гидромотора под повышенным давлением рабочей жидкости. Решение технической задачи в гидромоторе внутреннего зацепления, содержащем корпус с внутренними зубьями, эксцентрично установленный в корпусе ротор с двумя зубчатыми венцами, внешний из которых введен в зацепление с внутренними зубьями корпуса, а внутренний введён в зацепление с зубьями вал-шестерни, образующими в зоне зацепления с внутренними зубьями ротора рабочие камеры переменного объёма, распределители, жестко связанные с валом-шестерней, в которой выполнены полости подвода и отвода рабочей жидкости, сообщенные магистралями с реверсивным распределительным узлом, при этом распределители выполнены с каналами сообщения рабочих камер переменного объёма с полостями подвода и отвода рабочей жидкости, имеется полая трубчатая гильза, вал-шестерня выполнена полой, в полости вал-шестерни выполнены концентрические расточки, в которых неподвижно относительно вал-шестерни установлена указанная полая гильза с образованием внешней, образованной внешней поверхностью гильзы, и внутренней, образованной полостью гильзы, концентрических полостей подвода и отвода рабочей жидкости, внешняя полость состоит из двух разделенных перегородкой, выполненной в полости вал-шестерни, и сообщенных между собой через отверстие в этой перегородке кольцевых камер, распределители расположены с двух сторон ротора, внутренняя полость подвода и отвода рабочей жидкости сообщена с каналами распределителей через отверстия, выполненные в боковой стенке полой гильзы, при этом один конец полой гильзы вставлен в отверстие крышки гидромотора с герметизацией этого соединения кольцевым уплотнением для сообщения внутренней полости гильзы с одним из каналов ...

Axial piston hydraulic rotating machine

PROBLEM TO BE SOLVED: To provide an axial piston hydraulic rotating machine having high stability of a piston shoe. SOLUTION: A circular internal static pressure pocket 23 communicated with a filler opening 9 A, an inner peripheral land portion 22 formed on the outer periphery of the internal static pressure pocket 23, an external static pressure pocket 24 formed on the outer periphery of the inner peripheral land portion 22, and an outer peripheral land portion 25 formed on the outer periphery of the external static pressure pocket 24 are formed on the sliding surface in contact a piston shoe 9 with the swash palate 10. The inner peripheral land portion 22 is annularly formed around the filler opening 9 A. Oil passing grooves 27 through which the internal static pressure pocket 23 communicates with the external static pressure pocket 24 are formed in parts of the inner peripheral land portion 22 on straight lines, passing through the center of the filler opening 9 A. The oil passing grooves 27 are inclined with respect to the straight line A-B passing through the center of the filler opening 9 A. An inner wall surface and an outer wall surface of the inner peripheral land portion 22 are disposed on the straight lines that connect the center of the filler opening 9 A to the center of the oil passing groove 27.

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.

PISTON-CHAMBER HYDRO-GRAVITY ENGINE

A piston-chamber hydro-gravity engine capable of converting the stagnant volume of the liquid matter of sea, lake, pond or artificially made hydro container, to a moving volume of liquid matter that flows back upon itself and in meanwhile exploits this motion as a working agent to produce mechanical kinetic power, capable of being used for mechanical production of kinetic work for hydro-electricity generation, or to be used multi-purposely for other energy needs that demand mechanical kinetic force sufficient to solve energy production problems worldwide forever beneficial to the economy and, friendly to the environment, consisting of particular accessories of mechanisms embodied in a single system of mutual successive co-operation by exploiting gravity, that is the hydro-container (), capable of creating the means of exploiting the gravity-hydro-static tension of squashing compression exist within the volume of liquid matter of the sea, lake, pond or artificially made containers, the cylinder-chamber () and piston-chamber () these convert the stagnant gravity-hydro-static tension of force into a fluctuating homo-acting and counter-acting to gravity hydro-gravity-moving-force of action, that compels the piston-chamber () to reciprocate, the hermetically sealed vessel crank-cam-shaft chamber () operating as a participator in creating the means of the system piston-chamber hydro-gravity engine's function and meanwhile participating in the embodiment system that converts the reciprocating motion of piston-chamber (), to a rotating motion capable of being used multi-purposely, where for the piston-chamber hydro-gravity engine to function it is necessary for the hydro-gravity force of action of conduits () to be less than the hydro-gravity force of action of piston-chamber (), the area where conduits () adjusted hermetically fixed at the trunk of the cylinder-chamber () to be under the B.D.C. of piston-chamber ( Reciprocating motion, the diameter of crank () to be ...

Power generating apparatus of renewable energy type and control method thereof

A power generating apparatus of renewable energy type includes a rotation shaft, a hydraulic pump, a hydraulic motor, a generator and a pitch drive unit. When a fault even occurs, a deviation of a state indicating an operation state from a normal state value is calculated. When the deviation is not less than a first threshold value, the stop control unit performs by means of a hard-wired circuit at least one of switching the hydraulic pump to an idle state, the hydraulic motor to an idle state, and the pitch angle toward a feathering position. When the deviation is less than the first threshold and not less than a second threshold, the stop control unit performs by software control all of switching the hydraulic pump to the idle state, the hydraulic motor to the idle state, and the pitch angle toward the feathering position.

Hydrostatic radial piston machine

A hydrostatic radial piston machine includes a radial cylinder block with cylinder bores which extend from an outer circumferential surface of the radial cylinder block into an interior of the radial cylinder block a number of pistons which corresponds to the number of cylinder bores; a cam ring and ends of the pistons which face away from the radial cylinder piston block are supported movably on an inner circumferential surface of the radial cylinder block during a rotation of the radial cylinder block; two control plate elements which extend respectively with a face oriented towards the radial cylinder block towards a central plane of the radial cylinder block, which central plane is perpendicular to the rotation axis. Each control plate element includes a bearing portion in which radially acting forces are transferable to a respective mating surface in the housing or housing cover mounted in the housing.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Electro-hydraulic drive system for a work machine

An electro-hydraulic drive system for a work machine which drives an upper rotary body by controlling a flow rate of a hydraulic fluid by a control valve, includes an electro-hydraulic pump including a hydraulic pump driven by an engine, and a first electric motor, and an electro-hydraulic motor including a hydraulic motor rotated by the hydraulic oil supplied from the electro-hydraulic pump, and a second electric motor, and a controller which determines an operating state of the first electric motor and an operating state of the second electric motor based on a load of the electro-hydraulic pump and a load of the electro-hydraulic motor, and is able to perform an efficient operation by using a hydraulic pressure (fluid pressure) and electric power.

HEAT TRANSFER COMPOSITIONS

The invention provides a heat transfer composition comprising: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270)propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof. 1. A heat transfer composition comprising:(i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E));(ii) a second component selected from difluoromethane (R-32), propene (R-1270), propane (R290) and mixtures thereof;(iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally(iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.2. A composition according to claim 1 , comprising from about 5 to about 50% by weight of R-1234ze(E).3. A composition according to or claim 1 , comprising from about 10 to about 40% by weight of the second component.4. A composition according to claim 1 , comprising from about 10 to about 80% by weight of the third component.5. A composition according to claim 1 , wherein the second component comprises R-32.6. A composition according to claim 1 , wherein the third component is R-125 and R-134a.7. A composition according to claim 1 , comprising R-1234ze(E) claim 1 , R-32 claim 1 , R-125 and R-134a.8. A composition according to claim 7 , comprising from about 5 to about 40% by weight of R-1234ze(E) claim 7 , from about 20 to about 35% by weight R-32 claim 7 , from about 15 to about % by weight R-125 claim 7 , and from about 12 to about 50% by weight R-134a.9. A composition according to claim 7 , comprising from about 10 to about 50% by weight of R-1234ze(E) claim 7 , from about 22 to about 40% by weight R-32 claim 7 , from about 10 to about 30% by ...

Variable displacement hydraulic machine, in particular for a motor vehicle

The invention relates to a variable displacement hydraulic machine, in particular for a motor vehicle, said hydraulic machine comprising a rotating cylinder ( 10 ) including a series of axial pistons ( 12 ) connected to a first plate ( 14 ) axially located on one side of said cylinder within a substantially transverse plane, the slope of which can be controlled, so as to form a first controllable displacement for said machine, wherein said machine is characterized in that the cylinder ( 10 ) further comprises a second series of axial pistons ( 22 ) connected to a second plate ( 24 ), the slope of which is also controllable, said plate being axially located, relative to the first plate ( 14 ), on the other side of said cylinder so as to form a second controllable displacement for said machine.

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a control system, one or more heat exchangers, and, in certain embodiments of the invention, a motor-generator. The reversible air compressor-expander uses mechanical power to compress air (when it is acting as a compressor) and converts the energy stored in compressed air to mechanical power (when it is acting as an expander). In certain embodiments, the compressor-expander comprises one or more stages, each stage consisting of pressure vessel (the “pressure cell”) partially filled with water or other liquid. In some embodiments, the pressure vessel communicates with one or more cylinder devices to exchange air and liquid with the cylinder chamber(s) thereof. Suitable valving allows air to enter and leave the pressure cell and cylinder device, if present, under electronic control.

Hydraulic circuit for progressive engagement of a hydraulic device

The present invention relates to a hydraulic circuit comprising: an accumulator ( 11 ) a hydraulic device ( 1 ) a primary line ( 12 ) and a secondary line ( 13 ) connecting each said accumulator ( 11 ) to the hydraulic device ( 1 ), the primary line ( 12 ) comprising a restriction ( 14 ) and a primary distributor ( 15 ) adapted to selectively connect the hydraulic device ( 1 ) to the accumulator ( 11 ) or to a tank (R), the secondary line ( 13 ) comprising a secondary distributor ( 16 ) alternating between a first configuration in which it blocks the secondary line ( 13 ), and a second configuration in which it is passing, said secondary distributor ( 16 ) being controlled via the pressure within the primary line ( 12 ) downstream of the primary distributor ( 15 ) relative to the hydraulic accumulator ( 11 ), such that switching from the first to the second configuration of the secondary distributor ( 16 ) takes place only when the pressure in the primary line ( 12 ) reaches a threshold value.

Axial Piston Machine Having an Inclined-Axis Construction

An axial piston unit ( 1 ) having bent-axis construction with several guided piston elements ( 3 ) longitudinally movable in one rotatable cylinder device ( 2 ) and with an area ( 4 ) operatively connected with the piston elements ( 3 ) and guided with torque. The torque-guided area ( 4 ) is constructed to be rotatable around a swivel axis ( 10 ), and a displacement of the axial piston unit ( 1 ) varies depending on the rotary movement of the torque-guided area ( 4 ).

Hydraulic motor capable of many different applications able to use low-pressure or high-pressure fluids to operate

A hydraulic motor able to use low-pressure or high-pressure fluids such as water for a large number of applications. The motor uses a flow of water that is controlled and directed through a system of supply tubes to a chamber that fills with the fluid, moving a piston that produces an action such as rotating a shaft to turn a brush. Fluid fills the chamber through a system of opening and closing valves that direct and control the flow of the fluid so that the piston exerts pressure against a spring until it reaches a maximum position. A system of valves then reverses the flow of fluid until the piston is pushed in the opposite direction, producing an action such as turning a brush through the alternating application of water flows. A one-way gear box may be used to control the action of a shaft, which may be directed to turn in the same direction or in alternating directions to accomplish a wide variety of applications such as an hydraulic brush, gearbox speed increaser, generator or washing machine.

Axial piston motor

On an inner surface of a housing, a nozzle for jetting operation oil is provided at a position opposite to an outer circumferential surface of a cylinder block. With this configuration, by spraying the operation oil from the nozzle to the outer circumferential surface of the cylinder block during rotation of the cylinder block, this operation oil can remove frictional heat generated by sliding between a piston and a cylinder, and seizure of the piston and seizure of the cylinder can be prevented.

Hydrostatic Travel Drive and Method for Controlling the Hydrostatic Travel Drive

A hydrostatic travel drive includes a hydraulic pump for the purpose of supplying pressure medium to a hydraulic motor of the travel drive that can be coupled to an output, which pump can be coupled to a drive machine. The hydraulic pump has an actuating cylinder with at least one cylinder chamber and a swept volume which can be adjusted via the actuating cylinder, and at least one electrically activatable pressure valve via which the cylinder chamber can be charged with an adjustingly active actuating pressure. The travel drive further includes device via which a pressure of the hydraulic pump can be limited by means of influencing the actuating pressure.

Hydrostatic Traction Drive with a Pressure Cutoff and Method for Calibrating the Pressure Cutoff

A hydrostatic traction drive includes a hydraulic pump for supplying pressure medium to a hydraulic motor of the traction drive. The hydraulic pump has an actuation cylinder with at least one cylinder space and a swept volume which can be adjusted thereby. At least one electrically actuable pressure valve is provided, by means of which an actuation pressure which has an adjusting effect can be applied to the cylinder space. In addition, the traction drive has a device by means of which a pressure of the hydraulic pump can be limited by influencing the actuation pressure.

Hydrostatic Positive-Displacement Machine Piston for the Hydrostatic Positive-Displacement Machine, and Cylinder Drum for the Hydrostatic Positive-Displacement Machine

A hydrostatic positive-displacement machine, in particular a hydrostatic axial piston machine, having a cylinder drum with at least one cylinder, in which a longitudinally displaceable piston is received, which is supported directly or indirectly by a support portion on an inclined plane of the positive-displacement machine. An outer circumferential surface portion of the piston is in bearing contact with an inner circumferential surface portion of the cylinder. 1. A hydrostatic positive-displacement machine comprising:a longitudinally displaceable piston;a support portion; anda cylinder drum having at least one cylinder configured to receive the piston,wherein the piston is supported directly or indirectly by the support portion on an inclined plane of the positive-displacement machine,wherein an outer circumferential surface portion of the piston is in bearing contact with an inner circumferential surface portion of the at least one cylinder, andwherein, in at least one end area of the bearing contact, a weakening configured to reduce a rigidity or a resistance to deformation of a circumferential surface connected to the weakening when subjected to a lateral or radial force, is provided on the piston, the cylinder drum, or both.2. The positive-displacement machine according to claim 1 , wherein the at least one cylinder is a working cylinder and the piston is a working piston.3. The positive-displacement machine according to claim 1 , wherein a wall is located between the weakening and the connected circumferential surface.4. The positive-displacement machine according to claim 3 , wherein the wall extends taperingly in a stroke direction of the piston.5. The positive-displacement machine according to claim 1 , wherein the connected circumferential surface is predominantly cylindrical.6. The positive-displacement machine according to claim 1 , wherein the weakening extends from a plane or surface claim 1 , angled in relation to the connected circumferential ...

HYDRAULIC MOTOR

A hydraulic motor includes a motor mechanism that rotates by hydraulic liquid pressure led from a hydraulic liquid pressure source. The hydraulic motor includes a casing that defines a casing chamber which accommodates the motor mechanism, a brake mechanism that brakes the rotation of the motor mechanism, a brake release actuator that releases the braking of the brake mechanism by a brake release pressure led from the hydraulic liquid pressure source, and a throttle passage that is in communication with the casing chamber and extracts a portion of hydraulic liquid that is led into the brake release actuator and leads it to the casing chamber. 1. A hydraulic motor equipped with a motor mechanism that is configured to rotate by hydraulic liquid pressure led from a hydraulic liquid pressure source , comprising:a casing that defines a casing chamber which accommodates the motor mechanism,a brake mechanism that is configured to brake the rotation of the motor mechanism,a brake release actuator that is configured to release the braking of the brake mechanism by a brake release pressure led from the hydraulic liquid pressure source,and a throttle passage that is in communication with the casing chamber and extracts a portion of hydraulic liquid that is led into the brake release actuator and leads it to the casing chamber.2. The hydraulic motor according to claim 1 , wherein the motor mechanism includes:a swash plate provided in the casing chamber,a plurality of pistons that are configured to move back and forth following the swash plate by hydraulic liquid pressure,a cylinder block that is configured to rotate relative to the swash plate by the back-and-forth motion of the pistons, andan output shaft that is configured to output the rotation of the cylinder block,wherein the brake mechanism includes:a brake disc that is configured to rotate together with the cylinder block,a friction plate that is attached to the casing, anda brake spring that is configured to compress ...

HYDRAULIC MOTOR FOR VEHICLE WHEEL

A hydraulic motor for vehicle wheel includes a hydrodynamic element, a reaction element, an oil distributor rotating as one with the reaction element, and a brake mounted between the two elements to oppose the rotational movement. The hydrodynamic element has a flange that surrounds the oil distributor. On its radially exterior face, it has means for rotationally coupling with the rotary discs of the brake. The brake is thus positioned around the distributor. 134.-. (canceled)35. An apparatus comprising a hydraulic motor for a vehicle wheel , said hydraulic motor comprising a hydrodynamic element , a reaction element , a front bearing , a rear bearing , a support , an oil distributor , and a brake , wherein said hydrodynamic element comprises cells , pistons mounted so as each to slide in a respective cell , thereby defining a variable-volume chamber therein , and ducts that lead into said cells in order to communicate with said chambers , wherein said reaction element comprises an annular cam on which an active face of each piston acts , wherein said front and rear bearings at least indirectly enable said reaction element and said hydrodynamic element to rotate with respect to each other about an axis of rotation , wherein said support is rotationally linked to one of said elements , said vehicle wheel being rotationally linked to the other of said elements when in use , wherein said oil distributor rotates as one with said reaction element and brings said ducts selectively into communication with an oil supply line and a return line depending on an angular position thereof relative to said hydrodynamic element , and wherein said brake is mounted functionally between said two elements in order to selectively prevent rotational movement , said brake having at least one first braking surface rotationally coupled to said hydrodynamic element , and a second braking surface rotationally coupled to said reaction element , wherein each piston is mounted radially with ...

Rescue system from high rise apartments with automatic hydro mechanic control and without electricity

There is a pressing problem in the design of high-rise apartments and towers during the occurrence of the events like explosion, fire, earthquake since the inhabitants are not able to get out of the building and they get trapped in the dangerous situations. Currently all around the world, there are some systems but they have not met the urgent requirements and we annually witness lots of death tolls caused by fire and explosion. In order to remove the above-mentioned deficiencies, a new system has been designed which creates the possibility of transferring people from heights to the downside of the apartment in emergency conditions without requiring any energy. The device works by converting the potential gravitational power of weight into kinetic and heat energy. This operation is done by controlling and converting the function of a variable and invariable hydraulic pump or hydro motor which is connected to two grooves spool and the pump outlet is controlled by a control valve and centrifugal governor. The control operation causes the spool steel wire to be slowly opened. Consequently the person descends. This system works like a hydrodynamic damper.

STATOR ASSEMBLY FOR A PROGRESSIVE CAVITY PUMP OR A PROGRESSIVE CAVITY MOTOR AS WELL AS METHOD FOR MANUFACTURING AND REPAIRING THE SAME

A stator assembly for a progressive cavity pump or a progressive cavity motor includes connectors for connecting functional elements and at least one stator, the stator including an outer pipe as well as a lining subject to wear which is disposed inside the outer pipe, the at least one stator being disposed between the connectors such that a cavity extending across the entire stator assembly for housing a rotor is created. Between at least one of the connectors and at least one stator adjacent thereto and/or between adjacent stators an adhesion region is provided, whereby in the adhesion region an adhesive is disposed in such a way that between the at least one connector and the at least one stator adjacent thereto and/or between said respectively adjacent stators a substance-to-substance connection is created. 1. A stator assembly for a progressive cavity pump or a progressive cavity motor , with connectors for connecting functional elements and at least one stator , said stator comprising an outer pipe as well as a lining disposed inside said outer pipe and being subject to wear , said least one stator being disposed between said connectors so that a cavity extending through the entire stator assembly is formed for housing a rotor ,whereinbetween at least one of said connectors and at least one Stator adjacent thereto and/or between adjacent stators an adhesion region is provided whereby an adhesive is disposed inside said adhesion region in such a way that between said at least one connector and said at least one stator adjacent thereto and/or between said respective adjacent stators a substance-to-substance connection is created.2. The stator assembly according to claim 1 , wherein claim 1 , in addition to the adhesive region claim 1 , a screw thread region is disposed between at least one of said connectors and at least one stator adjacent thereto and/or between the respective adjacent stators for forming a positive locking and force-fit connection.3. The ...

Electro hydrostatic actuator

An electro hydrostatic actuator comprising a hydraulic pump driven by an electric motor to supply hydraulic fluid to a hydraulic actuator, the pump comprising an inlet and an outlet for the hydraulic fluid and an active flow path configured therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet. The pump further comprises a bypass flow path configured to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. The hydraulic pump is a rotary piston pump comprising a pump barrel driven to rotate by a motor shaft.

Pneumatic powered mobility devices

A personal mobility device includes a frame, a plurality of wheels attached to the frame and one or more pneumatic motors. Each of the one or more pneumatic motors has a drive shaft in operative connection with at least one of the plurality of wheels. The personal mobility device further includes at least one tank (that is, a storage container) for storage of a pressurized gas in operative connection with the one or more pneumatic motors to supply pressurized gas to the one or more pneumatic motors and a control system in operative connection with the at least one tank and with the one or more pneumatic motors.

HYDRAULIC APPARATUS HAVING AN ADDITIONAL THRUST SECTION

The invention relates to a valve assembly () of a radial piston hydraulic apparatus (). Said apparatus includes a cylinder block () insertable onto a shaft () by translation. Said assembly () includes: a valve () in contact with said cylinder block (); a valve train cover (); and a first () and second () chamber that are defined, respectively, by a first () and second () space that are located at the interface between said valve () and said valve train cover (), and are intended for the pressurized fluids that enable the conversion of pressure and/or mechanical stress. Said assembly () includes an additional section () defined by a third space () located at the interface between said valve () and said valve train cover (). Said section () is intended for receiving a pressurized fluid such as to enable the cylinder block (4) to be inserted onto the shaft (2). 2. The distribution assembly according to claim 1 , wherein the additional section is entirely or partly located radially outside the first and second chambers claim 1 , so that the surface of said additional section is greater.3. The distribution assembly according to claim 1 , wherein the supplying of the additional section is accomplished by selection of the lowest pressure between the two pressure relating to the first and second chambers.4. The distribution assembly according to claim 3 , wherein the distribution assembly comprises a low-pressure selector with an open center adapted to carry out the selection of the lowest pressure between the two pressures relating to the first and second chambers.5. The distribution assembly according to claim 1 , wherein the additional section is not radially rectilinear claim 1 , but is typically S or Z-shaped claim 1 , so as to optimize the volume and the sealing.6. A hydraulic device including a casing claim 1 , a cylinder block and a shaft to which the cylinder block is adapted to engage by longitudinal translation claim 1 , characterized in that it further comprises ...

Fluid working machine and method of operating a fluid working machine

A fluid working machine of the type comprising working chambers of cyclically varying volume and low and high pressure valves to regulate the flow of working fluid into and out of the working chamber, from low and high pressure manifolds, in which the valves are electronically controlled on each cycle of working chamber volume, by way of valve actuation signals, to determine the net displacement of working chambers. Additional valve actuator signals are generated in response to determination that a valve or working chamber has been inactive to adapt the valve to operate more reliably when subsequently actuated, but without significantly altering the net displacement of working chambers. 1. A method of operating a fluid working machine , the machine comprising a rotatable shaft and a plurality of working chambers having working volumes which vary cyclically with rotation of the rotatable shaft ,each working chamber having a low pressure valve which regulates the flow of working fluid between the working chamber and a low pressure manifold and a high pressure valve which regulates the flow of working fluid between the working chamber and a high pressure manifold, each low pressure valve being an electronically controlled valve having a valve actuator,the method comprising transmitting primary actuation signals to the actuators, in phased relationship to cycles of working chamber volume, to thereby actively control the said electronically controlled valves and so determine the net displacement of each working chamber on each cycle of working chamber volume, and selecting the net displacement of a group of one or more of the working chambers to follow a target,and further determining whether a valve inactivity test is met in respect of a said low pressure valve of a said working chamber and, responsive to said determination, transmitting one or more additional actuator signals to the actuator of the said low pressure valve, which additional actuator signals do not ...

Applications of ocean wave energy convertors

A system for production of desalinated water includes a wave energy convertor for conversion of mechanical energy from ocean waves into electricity and mechanical energy in the form of a salt-water stream. The system further includes a desalination unit coupled to the wave energy convertor. The system further includes an electrical connection from the wave energy convertor to the desalination unit, configured to supply the electricity to the desalination unit. The system further includes a conduit to supply the salt-water stream produced by the wave energy convertor to the desalination unit, wherein the desalination unit is configured to produce desalinated water.

HYDROSTATIC RADIAL PISTON MACHINE AND PISTON FOR A HYDROSTATIC RADIAL PISTON MACHINE

A radial piston machine and a piston for a radial piston machine include pistons that are movable in the radial direction and are guided along a lifting surface of a cam ring by a roller. The roller is hydrostatically supported by a pressure groove in a sliding bearing surface of a roller cage. The geometry of the pressure groove is configured such that both the leakage is reduced and the lateral support is improved by enlarging hydrostatic and hydrodynamic surface sections. 1. A hydrostatic radial piston machine , comprising:a cylinder block defining a plurality of cylinder bores; anda plurality of pistons guided radially displaceably in the respective cylinder bores and configured to delimit a working space in each case with the cylinder bore, the pistons being supported on a cam ring in each case via a roller such that they carry out a stroke in the case of a relative movement between the cam ring and the cylinder block,wherein the roller is mounted hydrostatically such that it is configured to be rotated on a roller cage configured approximately as a cylinder segment, and a hydrostatic pressure groove formed in a plain bearing face, the hydrostatic pressure groove being in pressure medium connection with the respective working space, andwherein the pressure groove is positioned in such a way that a gap which opens during operation of the radial piston machine between the outer circumference of the roller and the plain bearing face does not pass, or passes only insubstantially, in pressure medium connection with the pressure groove.2. The hydrostatic radial piston machine as claimed in claim 1 , wherein the pressure groove is arranged within an angular range of the plain bearing face which extends at most between ±60° in relation to a plane which is defined by a piston axis and a roller axis.3. The hydrostatic radial piston machine as claimed in claim 2 , wherein the pressure groove runs in the circumferential direction of the plain bearing face within an angular ...

Dynaco Stepper Pump Hydraulic System

A hydraulic linear actuator system known as the “Dynaco Stepper Pump Hydraulics System” is which is an electrically driven hydraulic pump system made of durable materials for use in an electronically controllable hydraulic system comprised of: (a) an electrically driven stepper motor; (b) a hydraulic pump to pressurize a hydraulic fluid; (c) a means to connect the stepper motor to the hydraulic pump; (d) a pressurized reservoir for a quantity of hydraulic fluid; (e) a means to supply pressurized fluid to a hydraulic actuator; (f) the hydraulic actuator with a means to provide linear motion to an object; (g) the means to provide linear motion to an object; (h) a means to return lowered pressurized fluid to the reservoir. An alternative embodiment is further comprised of a controller with a series of feedback signals.

FIBER-REINFORCED ACTUATOR

A fiber reinforced actuator includes first and second sets of fibers coupled with and arranged along a control volume to controllably constrain mobility of an actuator body. Fibers of the first set can be arranged with respect to fibers of the second set and with respect to a central axis to impart the actuator with various combinations of torsional and axial force responses. A third fiber may be included to form a helical actuator. A plurality of actuators can be coupled together for coordinated movement, thereby providing additional mobility directions, such as trans-actuator bending. The fiber-reinforced actuators and actuator assemblies are potential low cost, low energy consumption, lightweight, and simple replacements for existing motion devices such as servo-motor driven robots. 1. A fiber-reinforced actuator , comprising:a body and an associated control volume, the body extending for a length along a central axis of the control volume;a first set of fibers coupled with the body, the fibers of the first set extending about the control volume and/or along the length of the body at an angle α relative to the central axis; anda second set of fibers coupled with the body, the fibers of the second set extending about the control volume and/or along the length of the body at an angle β relative to the central axis;wherein a≠±β, and the orientation of the fibers of the first and second sets of fibers meets one of the following criteria:−90°>α>90° and −90°>β>90°; orα=90° and β≠0.2. A fiber-reinforced actuator as defined in claim 1 , wherein α≠0 and β≠0.3. A fiber-reinforced actuator as defined in claim 1 , wherein α≠90° and β≠90°.8. A fiber-reinforced actuator as defined in claim 1 , wherein the body comprises an elastomeric tube.9. A fiber-reinforced actuator as defined in claim 1 , wherein the central axis is non-linear when the actuator is in a free state.10. A fiber-reinforced actuator as defined in claim 1 , wherein the fibers of the first and second sets of ...

Swash plate type liquid-pressure rotating device and method of manufacturing same

A swash plate type liquid-pressure rotating device includes a movement restricting mechanism configured to restrict a movement of a spherical bushing relative to a rotating shaft toward a first side in an axial direction. The movement restricting mechanism is a restricting member such that a portion of the spherical bushing which portion is located at the first side in the axial direction contacts the restricting member. The swash plate type liquid-pressure rotating device further includes: a stopper attached to the rotating shaft; and a gap adjusting member. The gap adjusting member is inserted into a gap G 3 formed between the stopper and the bearing when the spherical bushing, the retainer plate, the shoe, and the swash plate tightly contact one another in the axial direction. The gap adjusting member restricts a movement of the rotating shaft relative to the casing toward the first side in the axial direction.

SERVOLESS MOTOR

A hydraulic piston unit including a rotational group for driving or being driven by a driving shaft, and having a tiltable displacement element for adjusting the displacement volume of the rotational group between a minimum or a maximum displacement, wherein, on t valve segment between a kidney-shaped inlet port and a kidney-shaped outlet port at respective dead end positions of reciprocally moveable working pistons first and second control ports are located in fluid connection with cylinder bores in the cylinder block, for controlling the position of the displacement element. The hydraulic piston unit further includes a control valve with a shiftable control valve spool fluidly connected via a high pressure port to a high pressure side of the hydraulic piston unit. The control valve spool is configured to conduct hydraulic fluid from the high pressure side to one of the first or the second control port. 1. A Hydraulic piston unit comprising:a rotational group for driving or being driven by a driving shaft, the rotational group comprising a cylinder block with cylinder bores and pistons mounted to be reciprocally moveable in the cylinder bores for conveying hydraulic fluid from a kidney-shaped inlet port to a kidney-shaped outlet port of a valve segment,a displacement element being tiltable with respect to a rotational axis of the driving shaft between a first end position and a second end position for adjusting a displacement volume of the rotational group between a minimum or a maximum displacement,wherein, on the valve segment between the inlet port and the outlet port at respective dead end positions of the reciprocally moveable working pistons, a first control port and a second control port are located in fluid connection with the cylinder bores for controlling the position of the displacement element, andwherein the hydraulic piston unit further comprises a control valve with a shiftable control valve spool, fluidly connected via a high pressure port to the ...

A hydraulic pump assembly

A hydraulic pump assembly comprises a rotatable piston drum ( 20 ) with at least one centrifugal lever ( 23 ) pivotally attached thereto for radial movements between radial flanges ( 20′ ) under the action of centrifugal force at rotation of the piston drum. The centrifugal lever ( 23 ) is arranged to control the position of a valve member, preferably a ball ( 22 ), at the opening end of a bore ( 21 ) in the piston drum ( 20 ). There is a defined friction surface ( 28; 32 ) between the lever ( 23 ) and one of the radial flanges ( 20′ ), and there are spring means ( 29 - 31; 25, 33 ) for resiliently biasing the lever against said one of the flanges.

HYDRAULIC PUMP-MOTOR

An axial hydraulic pump-motor, in which a cylinder block having a plurality of cylinder bores on a valve plate having a high-pressure side port and a low-pressure side port for controlling an amount of reciprocation of a piston in each of the cylinder bores, the hydraulic pump-motor includes: a residual pressure release port provided on the valve plate and communicating until the cylinder bore on a top dead center side communicates with the low-pressure side port; a residual pressure acquisition portion obtaining a value of a residual pressure in the cylinder bore on the top dead center side; and a directional switching valve switching a flow path between the residual pressure release port and an hydraulic oil tank and a flow path between the residual pressure release port and the low-pressure side port. 1. An axial hydraulic pump-motor , in which a cylinder block having a plurality of cylinder bores formed around a rotational shaft slides on a valve plate having a high-pressure side port and a low-pressure side port for controlling an amount of reciprocation of a piston in each of the cylinder bores based on a tilt of a swash plate , the hydraulic pump-motor comprising:a residual pressure release port provided on the valve plate and configured to communicate until the cylinder bore on a top dead center side communicates with the low-pressure side port;a residual pressure acquisition portion configured to obtain, by actual measurement or estimation, a value of a residual pressure in the cylinder bore on the top dead center side while the cylinder bore on the top dead center side communicates with the low-pressure side port; anda directional switching valve configured to switch and block a flow path between the residual pressure release port and a hydraulic oil tank and a flow path between the residual pressure release port and the low-pressure side port based on the value of the residual pressure obtained by the residual pressure acquisition portion.2. The hydraulic ...

AXIAL PISTON MACHINE

An axial piston machine may include a rotor having a shaft rotatably mounted in a housing. A plurality of cylinders may be arranged annularly around the rotor. A plurality of pistons may each be disposed within each of the plurality of cylinders and may be constructed and arranged to selectively translate within each of the plurality of cylinders. Each of the plurality of cylinders may be disposed within a cylinder head and may be in operative communication with an inlet opening defined in the cylinder head and at least one outlet opening defined in the housing. An auxiliary outlet rotary slide valve may be operatively connected to the shaft in a rotationally fixed manner. The auxiliary outlet rotary slide valve may comprises an auxiliary outlet rotary opening constructed and arranged to connect to a vent duct of one of the plurality of cylinders based on an angle of rotation, and may vent the one of the plurality of cylinders. At least a portion of the auxiliary outlet rotary slide valve may comprise a material constructed and arranged to reduce a sliding friction resistance, and wherein the material comprises one of a carbon containing material or a polymer containing material. 1. An axial piston machine comprising:a rotor having a shaft rotatably mounted in a housing;a plurality of cylinders arranged annularly around the rotor;a plurality of pistons each disposed within each of the plurality of cylinders and constructed and arranged to selectively translate within each of the plurality of cylinders;wherein each of the plurality of cylinders are disposed within a cylinder head and are in operative communication with an inlet opening defined in the cylinder head and at least one outlet opening defined in the housing;an auxiliary outlet rotary slide valve operatively connected to the shaft in a rotationally fixed manner, wherein the auxiliary outlet rotary slide valve comprises an auxiliary outlet rotary opening constructed and arranged to connect to a vent duct of ...

AXIAL PISTON MACHINE

An axial piston machine may include a rotor with a shaft. A plurality of cylinders may be arranged in an annular manner about the shaft. A plurality of pistons may each be positioned within each of the plurality of cylinders and may be constructed and arranged to move translationally within the plurality of cylinders. A cylinder head may include a plurality of inlet openings and may be in operative communication with the plurality of cylinders. A sealing washer having a plurality of passage openings may be disposed on the cylinder head so that the plurality of passage openings and the plurality of inlet openings may be flush with one another. A number of the plurality of inlet openings may correspond to a number of the plurality of passage openings. A valve plate may be connected to the shaft in a rotationally fixed manner and may be constructed and arranged to be brought into congruence with the plurality of passage openings of the sealing washer based on a rotary angle. The sealing washer may be disposed between the plurality of inlet openings and the valve plate and may be prestressed against the cylinder head and onto the inlet openings. 1. An axial piston machine comprising:a rotor with a shaft;a plurality of cylinders arranged in an annular manner about the shaft;a plurality of pistons constructed and arranged to move translationally within the plurality of cylinders;a cylinder head having a plurality of inlet openings, wherein the plurality of cylinders are in operative communication with the plurality of inlet openings;a sealing washer having a plurality of passage openings disposed on the cylinder head so that the plurality of passage openings and the plurality of inlet openings are flush with one another, and wherein a number of the plurality of inlet openings corresponds to a number of the plurality of passage openings;a valve plate connected to the shaft in a rotationally fixed manner, the valve plate constructed and arranged to be brought into ...

AXIAL PISTON MACHINE

An axial piston machine may include a rotor rotatably mounted in a housing. A plurality of cylinders may be arranged in a ring around the rotor. A plurality of pistons may each be arranged within each of the plurality of cylinders and may be constructed and arranged to selectively translate within the plurality of cylinders. A plurality of inlet openings may be defined in a cylinder head and at least one outlet opening may be defined in the housing. The plurality of cylinders may be in operative communication with the plurality of inlet openings and the at least one outlet opening. An inlet channel may be defined in the cylinder head and may extend to each of the plurality of inlet openings. An outlet channel may be defined in the housing and may be in operative communication with the at least one outlet opening. A bypass channel may be defined in the housing and may extend from the cylinder head into one of the outlet channel or a swashplate space. A bypass valve may be connected to the cylinder head or may be integrated with the cylinder head. The bypass valve may be constructed and arranged to selectively apportion a working medium to the inlet channel and the bypass channel based on a switching position of the bypass valve. 1. An axial piston machine comprising:a rotor rotatably mounted in a housing;a plurality of cylinders arranged in a ring around the rotor;a plurality of pistons, wherein each of the plurality of pistons are arranged within each of the plurality of cylinders and are constructed and arranged to selectively translate within the plurality of cylinders;a plurality of inlet openings defined in a cylinder head and at least one outlet opening defined in the housing, wherein the plurality of inlet openings and the at least one outlet opening are in operative communication with the plurality of cylinders;an inlet channel defined in the cylinder head extending to the inlet opening;an outlet channel defined in the housing in operative communication with ...

Electric tree felling head and associated control system for a forestry vehicle

A tree feller-buncher includes a felling head having a saw blade, an engine carried by an undercarriage, a hydraulic system operably connected to the engine, at least one transient operably connected to the hydraulic system, and an electric system operably connected to the engine, the electric system configured to operate the saw blade.

HYDRAULIC RADIAL PISTON DEVICE

A hydraulic radial piston device includes a housing, a pintle having a pintle shaft, a rotor mounted on the pintle shaft and defining a plurality of cylinders, and a plurality of pistons displaceable in the cylinders. The radial piston device further includes a piston ring that provides an interface for the pistons. The radial piston device includes various configurations for improving the performance and efficiency of the device.

Hydrostatic Power Unit

A hydrostatic power unit () comprises a variable displacement machine with a continuously variable displacement volume and is operated as a pump and motor and is in a drive connection with an internal combustion engine (). When operated as a pump, the power unit sucks hydraulic fluid out of a tank () and delivers into a delivery side (P), and, when operated as a motor, functions as a hydraulic starter to start the internal combustion engine (). When operated as a motor, the power unit is supplied with hydraulic fluid from a hydraulic accumulator (). The displacement volume of the power unit () is set by a displacement volume control device () actuated by a positioning piston device () supplied with hydraulic fluid from a charging pressure circuit (). The power unit () includes a supplemental positioning piston device () in an operative connection with the displacement volume control device () and which is actuated directly by the pressure present in the hydraulic accumulator (). By means of a connection of the supplemental positioning piston device () with the hydraulic accumulator, the power unit () can be adjusted to increase the displacement volume to start the internal combustion engine (). 1. A hydrostatic power unit , comprising:a variable displacement machine with a continuously variable displacement volume and operable as a pump and motor;an internal combustion engine connected to the variable displacement machine, wherein when operated as a pump, a suction side of the power unit sucks hydraulic fluid out of the tank and delivers into a delivery side, wherein when operated as a motor, the power unit is a hydraulic starter to start the internal combustion engine, and wherein the power unit operated as a motor is supplied with hydraulic fluid from a hydraulic accumulator;a displacement volume control device to set a displacement volume of the power unit;a positioning piston device supplied with hydraulic fluid from a charging pressure circuit; anda ...

REVERSIBLE HYDRAULIC PRESSURE CONVERTER EMPLOYING TUBULAR VALVES

The reversible hydraulic pressure converter () employing tubular valves includes a medium-pressure stage () consisting of a medium-pressure cylinder () and a double-acting medium-pressure piston () the position of which is sent to a control computer of the converter () by a piston position sensor (), the cylinder () and the piston () forming two medium-pressure chambers () that can be placed in communication with a medium-pressure inlet-outlet circuit () by at least one tubular valve (), the converter () also including two high-pressure cylinders () each cooperating with a high-pressure piston () of smaller diameter and defining two high-pressure chambers () that can be placed in communication with a high-pressure inlet-outlet circuit () by at least one tubular valve (), each of the various tubular valves () cooperating with an independent valve actuator (). 11. Reversible hydraulic pressure converter () employing tubular valves , characterized in that it includes:{'b': 44', '2', '4', '3', '5', '4', '2', '4', '5', '5', '3, 'a medium-pressure stage () consisting of a medium-pressure cylinder () each of the two ends of which is closed by a medium-pressure head () and in which can move in translation in a fluid-tight manner a double-acting medium-pressure cylinder () that has a pressure face () facing each medium-pressure head () while said cylinder (), said heads () and said pressure faces () form two medium-pressure chambers () axially positioned on respective opposite sides of the double-acting medium-pressure piston ();'}{'b': 45', '7', '5', '7', '3', '8', '7', '4', '9', '2', '8', '9', '10', '8', '11, 'at least one high-pressure stage () consisting of a piston connecting rod () for each pressure face (), said rod () having a first end fastened to the double-acting medium-pressure piston () and a second end fastened to a high-pressure piston (), said rod () passing in a fluid-tight manner through the medium-pressure head () that is located on its side so as to ...

Hydraulic Assembly Device, System and Method

A device, system, and process for turning hydraulic pressure into rotational force and for turning rotational motion into hydraulic pressure. An example of the device/system for performing the process comprises actuators, rotationally positioned between two thrust plates that are fixed in a housing at an angle to a rotational axis and in parallel to each other. 1. A process of converting hydraulic pressure into rotational motion and for converting rotational motion into hydraulic pressure , the process comprising:applying force to a first plate with a first actuator positioned between the first plate and a second plate wherein the first and second plates are at an angle to the direction of applying the force;allowing the first actuator to rotate around a rotational axis that is substantially in parallel with the direction of the application of force to the first plate;applying force to the second plate, during the applying force to the first plate, with a second actuator positioned between the first plate and a second plate; andallowing the second actuator to rotate around the rotational axis.2. A system for converting hydraulic pressure into rotational motion and for converting rotational motion into hydraulic pressure , the system comprising:means for applying force to a first plate with a first actuator positioned between the first plate and a second plate wherein the first and second plates are at an angle to the direction of applying the force;means for allowing the first actuator to rotate around a rotational axis that is substantially in parallel with the direction of the application of force to the first plate;means for applying force to the second plate, during the applying force to the first plate, with a second actuator positioned between the first plate and a second plate; andmeans for allowing the second actuator to rotate around the rotational axis.3. A process of converting hydraulic pressure into rotational motion , the process comprising:applying ...

AXIAL PISTON MACHINE WITH OUTLET CONTROL

An axial piston machine may include a shaft and a housing surrounding at least a portion of the shaft. A cylinder arrangement may be disposed within the housing in a circular manner. The cylinder arrangement may include a plurality of cylinders and a plurality of pistons each extending within each of the plurality of cylinders and may be constructed and arranged to drive the shaft. The plurality of cylinders may each include an expansion volume with an inlet and at least one outlet opening for a working medium. A cylinder head may be provided on the housing and may be constructed and arranged to close the plurality of cylinders of the cylinder arrangement. A cavity may be defined around the shaft in a central region of the cylinder arrangement and may be in operative communication with a plurality of auxiliary outlet openings of the expansion volume of each of the plurality of cylinders via a temporary connection. A cylindrical roller slider may rotate within the cavity in the central region of the cylinder arrangement and may be constructed and arranged to drive the shaft. A temporary connection between the cavity and the expansion volume of each of the plurality of cylinders may be formed by at least one of a channel through the cylindrical roller slider and a recess on an outside surface of the cylindrical roller slider. The recess may extend laterally from a casing of the cylindrical roller slider at a height of the plurality of auxiliary outlet openings in each of the plurality of cylinders and at a distance to the cavity in the central region of the cylinder arrangement. 1. An axial piston machine comprising:a shaft;a housing surrounding at least a portion of the shaft;a cylinder arrangement disposed within the housing in a circular manner, wherein the cylinder arrangement comprises a plurality of cylinders and a plurality of pistons each extending within each of the plurality of cylinders constructed and arranged to drive the shaft, wherein the plurality of ...

Hydrostatic Axial Piston Machine

A hydrostatic axial piston machine includes a pot-like housing, a connection plate that closes the pot-like housing, a rotatably mounted cylinder drum, and pistons arranged in cylinder chambers of the cylinder drum. The cylinder chambers are each alternately connected via a cylinder chamber opening to a low-pressure control opening and a high-pressure control opening of a resting control part. The control part has two switching regions located between the low-pressure and high pressure control openings. A piston reverses its movement direction in a dead center within the two switching regions. In the switching region, the cylinder chambers are connected via a connecting line to a fluid volume arranged in the housing. The fluid volume extends between the connection plate and the housing such that it is sealed to an interior by the connection plate and the housing.

Hydrostatic Axial Piston Machine of Swash Plate Design with an Adjustable Swept Volume, in particular Hydrostatic Axial Piston Pump

A hydrostatic axial piston machine includes a housing, a cylinder barrel, and a drive shaft, which are connected together and mounted in the housing so as to rotate jointly about a first axis. The machine also includes a swash plate mounted in the housing so as to pivot about a second axis to adjust a swept volume of the machine. The machine further includes a hydraulic actuating apparatus, which has an actuating piston that delimits an actuating chamber. The machine also includes a regulating valve attached to a flange face of the housing. The regulating valve has connections situated in the flange face that are used to communicate hydraulic fluid to and from the actuating chamber. The flange face is arranged obliquely so as to enclose an angle with the second axis that is greater than 0° and smaller than 90°. 1. A hydrostatic axial piston machine of swash plate design , comprising:a housing, a cylinder barrel, and a drive shaft that are (i) connected to one another such that they cannot be twisted and (ii) mounted in the housing such that they are configured to be rotated jointly about a first axis;a swash plate mounted in the housing so as to be pivoted about a second axis in order to adjust a swept volume of the hydrostatic axial piston machine;a hydraulic actuating apparatus with an actuating piston that delimits an actuating chamber, is guided rectilinearly in an actuating chamber bore of the housing, and by way of which the swash plate is configured to be pivoted; and a pressure connector which lies above a pressure opening of the housing which is arranged in the flange face,', 'a control connector which lies above a control opening of the housing which is arranged in the flange face, and', 'a tank connector which lies above a tank opening of the housing which is arranged in the flange face,, 'a regulating valve that is attached to a flange face of the housing, which flange face is arranged to a side of the actuating chamber bore, and which regulating valve ...

HYDRAULIC FUEL PUMP APPARATUS FOR A FUEL DELIVERY CHASSIS, SUITABLE FOR REFUELING AIRCRAFT, AND RELATED DEVICES, SYSTEMS AND METHODS

Embodiments include a modular fuel pump apparatus for an aircraft refueling chassis and related devices, systems and methods. In one exemplary embodiment, a pump module includes a hydraulic motor driven by a hydraulic pump connected to a chassis motor. A chassis engine is operated at a substantially constant RPM, which causes the hydraulic pump to output hydraulic fluid to the pump module at a substantially constant hydraulic pressure. The speed of the hydraulic motor can be varied by a proportional flow control valve disposed between the hydraulic pump and the hydraulic motor, thereby varying the speed of the fuel pump and the flow rate of the fuel. A controller is configured to operate the pressure control valve such that the flow of the fuel is maintained at a predetermined flow rate. 1. A pump module for a fuel delivery chassis , comprising:a proportional flow control valve configured to receive hydraulic fluid at a first hydraulic fluid flow rate from a hydraulic pump driven by a vehicle engine, the proportional flow control valve configured to allow at least a portion of the hydraulic fluid to pass through at a second hydraulic fluid flow rate;a hydraulic motor configured to receive and be driven by the hydraulic fluid passing through the proportional flow control valve at the second hydraulic fluid flow rate, the hydraulic motor configured to rotate at a rotational rate corresponding to the second hydraulic fluid flow rate;a fuel pump configured to be driven by the hydraulic motor, the fuel pump configured to pump fuel from a fuel storage receptacle to at least one fuel delivery hose assembly at a fuel flow rate corresponding to the rotational rate of the hydraulic motor; anda controller configured to control the proportional flow control valve to adjust the second hydraulic fluid flow rate to maintain the fuel flow rate within a predetermined flow rate range.2. The pump module of claim 1 , wherein the at least one fuel delivery hose assembly comprises at ...

MANUAL DISPLACEMENT CONTROL ARRANGEMENT FOR AN AXIAL PISTON PUMP

Displacement control device () for variably adjusting the displacement of an axial piston hydraulic pump comprising a rotary shaft () mounted in a housing () and rotatable around a shaft axis () of the rotary shaft (). The rotary shaft () having a first end () and a second end (), wherein to the second end (), which protrudes outside of the housing (), a torque can be applied for rotating the rotary shaft () to open and close servo pressure lines () arranged within the housing (). The servo pressure lines () can conduct hydraulic fluid to and from a servo adjusting unit capable to adjust the displacement volume of the axial piston hydraulic pump. The rotary shaft () further comprising a mid-portion () located between the first end () and second end (). Concentric to the shaft axis () in the mid-portion () of the rotary shaft () a detent sleeve () is positioned comprising an abutment area () onto which, in the neutral position of the displacement control device (), a sliding element () abuts, which is mounted pre-stressed in the housing exerting a resilient force onto the detent sleeve () perpendicular to the shaft axis (), wherein the detent sleeve (), in operating conditions of the displacement control device () is rotatable fixed with the rotary shaft () and turns with the rotary shaft (). However, for neutral position adjustments in non-operating conditions, the detent sleeve () and the rotary shaft () are detachable from each other such that the rotary shaft () can be turned relative and independently within the detent sleeve (), which is held in its neutral position by the sliding element (). 1. A displacement control device for variably adjusting the displacement of an hydraulic axial piston pump comprising a rotary shaft mounted rotatable in a housing around a rotary shaft axis of the rotary shaft , said rotary shaft having a first end and a second end , wherein to the second end , which protrudes outside of the housing , a torque can be applied for rotating ...

Hydraulic motor-pump-arrangement and hydraulic system for a vehicle

An arrangement for selectively making available hydraulic power in separate hydraulic circuits comprises two displacement machines, two free-wheels and a drive unit that is preferably arranged between the displacement machines. The free-wheels block in opposite directions and are coupled to the displacement machines. Consequently, the first displacement machine is driven in a first rotating direction of the drive unit while the second displacement machine is only driven in a second, opposite rotating direction of the drive unit. This makes it possible to realize an intermittent operation for selectively making available additional hydraulic power in separate hydraulic subsystems by choosing the rotating direction accordingly. This arrangement can reduce the weight and the complexity of a hydraulic system.

HYDRAULIC CULVERT CLEANER

A culvert cleaner for cleaning clogged culverts using pressurized water having a self-contained water pump and maneuvering capabilities is described. The culvert cleaner includes a frame, a water pressurizing system, and a control system. The culvert cleaner may be used on a number of different machineries (e.g. truck, excavator, and rail equipment). The culvert cleaner is positioned in front of a clogged culvert using the hydraulic excavator that is on the railway. Once the culvert cleaner is position, the water pressurizing system of the culvert cleaner is engaged and high pressure water is used to clean the culvert. During cleaning alterations may be made to nozzle in the x-axis and y-axis due to the integrated positioning of the nozzle as a part of the water pressurizing system. 1. A culvert cleaner for cleaning clogged culverts using pressurized water , comprising: a central frame,', 'and', 'a pump guard configured to protect a hydraulic motor, where the pump guard is in mechanical communication with the central frame'}, 'a push plate configured to maneuver the culvert cleaner, where the push plate is in mechanical communication with the central frame;, 'a frame, the frame comprising'} a hydraulic circuit configured to power a water pump of the water pressurizing system;', 'the water pump, where the water pump is in mechanical communication with the hydraulic circuit;', 'an intake port, where the intake port is in mechanical communication with the water pump;', 'the piping provides fluid communication between the water pump, the ball valve, and a nozzle,', 'piping configured to deliver pressurized water to a ball valve of the water pressurizing system, wherein'}, the ball valves moves between an open position and a closed position, an electric motor, wherein', 'the electric motor controls the movement of the ball valve between the open position and the closed position;, 'the ball valve, wherein'}, 'the nozzle delivers pressurized water to the clogged culvert;', ...

Crankless engine

The crankless sinusoidal engine has at least one cylinder, one standard piston and head with combustion chamber and inlet and exhaust valves. A main shaft with one flywheel with incorporated sinusoidal track, Connection between the piston and the sinusoidal track consists of four items; to wit, one connecting rod, one bearing trolley and two segmented rollers, said rollers being in constant contact with said sinusoidal track, one bearing on each side thereof. The bearing trolley sliding on guide pins anchored in opposite ends of cast (alternatively fabricated) housing, said guide pins positioned parallel to the main shaft. 1. A crankless sinusoidal engine comprising at least one cylinder , complete with head and inlet and exhaust poppet valves. A main shaft mounted parallel to the cylinder , one flywheel with incorporated sinusoidal track , mounted near the center of the main shaft , one connecting rod attached to the piston at one end and to a bearing trolley at the other by means of a wrist pin , said bearing trolley having two segmented rollers spaced so as to fit snugly , one against each side of the sinusoidal track. The bearing trolley is mounted on two guide pins so that it will slide parallel to the main shaft and cylinder. The guide pins are rigidly mounted in and between the front and back ends of the housing. Force from the piston through the connecting rod , bearing trolley , and segmented bearings against the sinusoidal track cause the track , flywheel , and main shaft to rotate , all enclosed in a housing.2. A crankless sinusoidal engine as claimed in claim 1 , characterized in that it comprises one or more cylinders located around the main shaft.3. A crankless sinusoidal engine as claimed in claim 1 , characterized in that the driving mechanism comprises a segmented roller constantly in contact with one cam surface and a second segmented roller in constant contact with the opposed cam surface.4. A crankless sinusoidal engine as claimed in claim 1 , ...

HYDRAULIC ROTARY MACHINE

A hydraulic rotary machine configured to reduce sliding resistance of a reciprocating piston and to suppress a reduction in volumetric efficiency corresponding to an amount of leakage of hydraulic oil. A piston pump includes a rotor shaft, a cylinder block, a piston head, a piston rod, a retainer, a swash plate, and a tilt regulation mechanism. When the tilt regulation mechanism rocks the swash plate, the amount of discharge from the piston pump is variably changed. The retainer which rotates with both the piston head and the piston rod is supported by a retainer bush provided to the rotor shaft. The retainer sphere section of the retainer and the retainer bush sphere section of the retainer bush have spherical shapes having the same curvature. During the regulation of tilt, the retainer rocks while the retainer bush sphere section is in sliding contact with the retainer bush. 1. A hydraulic rotary machine of a variable displacement type , the hydraulic rotary machine comprising:a housing;a rotor shaft rotatably supported by the housing;a cylinder block that includes a plurality of cylinders intermittently disposed around the rotor shaft and revolves together with the rotor shaft about a central axis of the rotor shaft;a plurality of pistons that are each housed in each of the plurality of cylinders in the cylinder block and reciprocates in an axial direction in the cylinder along with rotation of the cylinder block;a retainer bush that includes a bush outer circumferential surface and is supported on the rotor shaft to rotate about the central axis along with rotation of the rotor shaft, the bush outer circumferential surface having a spherical shape that swells outward in a radial direction of the rotor shaft and has a first curvature;a retainer that has a retainer inner circumferential surface and is supported on the retainer bush to rock about an axis perpendicular to the rotor shaft, the retainer inner circumferential surface having a concave spherical shape ...

COMPRESSED AIR ENERGY STORAGE SYSTEM

A hydraulic energy flow conversion device is for use in association with a compressed air storage unit and an input device. The input device is for inputting mechanical energy. The hydraulic energy flow conversion device includes a first hydraulic cylinder and a means for decreasing the displacement rate during the compression cycle. The first hydraulic cylinder includes a first hydraulic piston and has a compression cycle, an expansion cycle and a displacement rate. The first hydraulic cylinder is operably connected to the compressed air storage unit. The first hydraulic piston is operably connected to the input device. The energy input device may be a wind turbine. 1. A hydraulic energy flow conversion device for use in association with a compressed air storage unit and an input device for inputting mechanical energy , the hydraulic energy flow conversion device comprising:a first hydraulic cylinder including a first hydraulic piston and having a compression cycle, an expansion cycle and a displacement rate, the first hydraulic cylinder being operably connected to the compressed air storage unit and the first hydraulic piston being operably connected to the input device; anda means for decreasing the displacement rate during the compression cycle.2. The hydraulic energy flow conversion device of wherein the input device provides generally constant power during the compression cycle.3. The hydraulic energy flow conversion device of wherein the means for decreasing the displacement rate is a crank mechanism operably connected between the input device and the first hydraulic piston.4. The hydraulic energy flow conversion device of further including at least a second hydraulic cylinder having a second hydraulic piston claim 3 , the second hydraulic cylinder being operably connected to the compressed air storage unit and the second hydraulic piston being operably connected to crank mechanism such that the compression cycles of the first hydraulic cylinder and the ...

HYDRAULIC RADIAL PISTON DEVICE

A hydraulic radial piston device includes a housing, a pintle having a pintle shaft, a rotor mounted on the pintle shaft and defining a plurality of cylinders, and a plurality of pistons displaceable in the cylinders. The radial piston device further includes a piston ring that provides an interface for the pistons. The radial piston device includes various configurations for improving the performance and efficiency of the device. 1. A hydraulic radial piston device comprising:a housing;a pintle attached to the housing and having a pintle shaft;a rotor mounted on the pintle shaft and configured to rotate relative to the pintle shaft about a rotor axis of rotation, the rotor having a plurality of cylinders;a plurality of pistons, each being displaceable in each of the plurality of cylinders;a piston ring disposed around the rotor and having a piston ring axis of rotation, the piston ring configured to rotate about the piston ring axis of rotation as the rotor rotates relative to the pintle shaft about the rotor axis of rotation; anda drive shaft rotatably supported within the housing and rotatable with the rotor;wherein the pintle includes an integrated bearing surface configured to provide a bearing surface against which the rotor rotates, the integrated bearing surface integrally formed to surround a rotor inlet communication port and a rotor outlet communication port, the rotor inlet communication port formed on the pintle shaft and configured to be selectively in fluid communication with the plurality of cylinders, and the rotor outlet communication port formed on the pintle shaft and configured to be selectively in fluid communication with the plurality of cylinders.2. The radial piston device of claim 1 , wherein the pintle includes a pintle wall extending at least partially along a pintle inlet channel defined by the pintle shaft.3. The radial piston device of claim 2 , wherein the pintle wall is configured to separate the pintle inlet channel into two ...

HYDRAULIC PISTON WITH COOLING AND LUBRICATION VALVE

The hydraulic piston forms a hydraulic chamber with a cylinder and has a cylindrical body which receives a seal and whose external cylindrical surface is housed with little clearance in the cylinder in such a manner as to leave an interstitial space, the cylindrical body being run through by a cooling and lubrication pipe which can be opened or closed by a cooling and lubrication valve which is moved by translation by a valve-actuator in such a manner that fluid can pass via a flow calibration opening from the hydraulic chamber to the interstitial space when the pressure existing in the hydraulic chamber is low and cannot pass when the pressure in the chamber is high. 116134321341451105113891. A hydraulic piston () consisting of a cylindrical body () which presents an external cylindrical surface () housed with little clearance in a cylinder () in such a manner as to leave an interstitial space () between said surface () and said cylinder () , said piston () being capable of moving by translation in said cylinder () with which it forms a hydraulic chamber () of variable volume , a first end of said piston () having a compression face () leading into the hydraulic chamber () in order to receive the pressure of a fluid () , while the other end of said piston () has a piston support face () in order to exert a force onto transmission means () , said piston () comprising:{'b': 16', '13', '16', '4, 'Sealing means () arranged on the external cylindrical surface (), said means () being capable of forming a seal with the cylinder ();'}{'b': 7', '6', '7', '14', '5', '15', '13', '11', '7', '14', '15', '5', '32', '16', '11', '6', '14', '15, 'At least one cooling and lubrication pipe () which is arranged entirely or partially in the cylindrical body (), said pipe () starting, on the one hand, with a pipe inlet () which communicates directly or indirectly with the hydraulic chamber (), and ending, on the other hand, with a pipe outlet () which opens directly or indirectly at the ...

HYDRAULIC ROTATING MACHINE

A hydraulic rotating machine adapted to be actuated and rotated by supply and discharge of a working fluid includes a cylinder block to which a shaft is coupled, the cylinder block being configured to be rotate together with the shaft; a cylinder formed to have an opening portion on one end side of the cylinder block, a recessed portion being formed on an inner circumference of the cylinder; and a bush inserted from the opening portion of the cylinder and provided on the inside of the cylinder, the bush having a projection portion filled into the recessed portion by plastic deformation. The recessed portion is formed in such a manner that width along an axial direction of the cylinder becomes smaller toward the depth direction. 1. A hydraulic rotating machine adapted to be actuated and rotated by supply and discharge of a working fluid , comprising:a cylinder block to which a shaft is coupled, the cylinder block being configured to be rotate together with the shaft;a cylinder formed to have an opening portion on one end side of the cylinder block, a recessed portion being formed on an inner circumference of the cylinder; anda bush inserted from the opening portion of the cylinder and provided on the inside of the cylinder, the bush having a projection portion filled into the recessed portion by plastic deformation, whereinthe recessed portion is formed in such a manner that width along an axial direction of the cylinder becomes smaller toward the depth direction.2. The hydraulic rotating machine according to claim 1 , whereinthe recessed portion is formed in an annular shape on an inner circumference of the cylinder.3. The hydraulic rotating machine according to claim 1 , whereinthe recessed portion has a first side surface portion formed from an opposite side to the opening portion of the cylinder toward a bottom of the recessed portion, anda boundary between an inner circumferential surface of the cylinder and the first side surface portion is provided on the ...

HYDROSTATIC SYSTEM

A hydrostatic system includes a hydraulic system and at least one sensor configured to monitor a parameter of the hydraulic system, the at least one sensor including a wireless transmitter configured to generate wireless transmissions based on the parameter. The hydrostatic system further includes an electronic control box including a wireless receiver that is configured to receive the wireless transmissions generated by the at least one sensor. The electronic control box is configured to control the hydraulic system based at least in part on the received wireless transmissions. 1. A hydrostatic system comprising:a hydrostatic unit;at least one sensor configured to monitor a parameter of the hydrostatic unit, the at least one sensor including a wireless transmitter configured to generate wireless transmissions based on the parameter; andan electronic control box including a wireless receiver configured to receive the wireless transmissions generated by the at least one sensor and a processor configured to control the hydrostatic system based at least in part on the received wireless transmissions.2. The hydrostatic system according to claim 1 , further comprising a housing containing the hydrostatic unit;wherein the at least one sensor is mounted to the housing.3. The hydrostatic system according to claim 2 , wherein the electronic control box is mounted to the housing.4. The hydrostatic system according to claim 2 , wherein the electronic control box is detached from the housing.5. The hydrostatic system according to claim 1 , wherein the at least one sensor includes a pressure sensor.6. The hydrostatic system according to claim 1 , wherein the at least one sensor includes a speed sensor.7. The hydrostatic system according to claim 6 , further comprising at least one second sensor;wherein the at least one second sensor includes a pressure sensor.8. The hydrostatic system according to claim 1 , wherein the hydrostatic unit includes a pump.9. The hydrostatic system ...

Method and system for harnessing wind energy using a tethered airfoil

Methods, systems, and techniques for harnessing wind energy use a tethered airfoil and a digital hydraulic pump and motor, which may optionally be a combined pump/motor. During a traction phase, a wind powered airfoil is allowed to extend a tether and a portion of the wind energy harnessed through extension of the tether is stored prior to distributing the wind energy to an electrical service. During a retraction phase, the wind energy that is stored during the traction phase is used to retract the tether. The digital hydraulic pump and motor are mechanically coupled to the tether.

BRAKING SYSTEM FOR A HYDRAULIC MACHINE

A hydraulic machine () comprising first and second brake elements (), a spring washer () tending to urge the first and second brake elements () in a braking direction, and a brake release piston () configured to act on the spring washer () in a direction opposing the braking direction, the hydraulic machine being characterized in that the brake release piston () comprises a primary brake release piston () associated with a primary brake release chamber (), and a secondary brake release piston () associated with a secondary brake release chamber (), said primary and secondary chambers () extending radially around the shaft () in such a manner that projections of the primary brake release chamber () and of the secondary brake release chamber () onto a plane perpendicular to a longitudinal axis (X-X) defined by the axis of rotation of the hydraulic machine () are superposed, at least in part. 1. A hydraulic machine comprising a shaft and a casing mounted to rotate relative to each other by means of a bearing , the hydraulic machine comprising:first brake elements constrained to rotate with the casing;second brake elements constrained to rotate with the shaft;the first and second brake elements forming a stack and being configured so as to enable the casing to be constrained to rotate with the shaft when they are put into contact;a spring washer mounted to bear against the casing and tending to urge the first and second brake elements in a braking direction, tending to cause the first and second brake elements to be put into contact; anda brake release piston configured to act on the spring washer in a direction opposing the braking direction;whereinthe brake release piston comprises a primary brake release piston associated with a primary brake release chamber, and a secondary brake release piston associated with a secondary brake release chamber, said primary and secondary chambers being connected together and adapted to exert thrust force respectively on the primary ...

Device and Method to Convert Reciprocating Linear Motion into Linear Fluid Flow

The invention provides a device and method for converting reciprocating motion of various amplitudes and frequencies into unidirectional fluid flow, comprising a piston section and a valves section. The unidirectional fluid flow may then be used for various processes including for example conversion to mechanical or electrical power. 1. A device for converting reciprocating motion into unidirectional fluid flow , comprising:a piston section;a valves section;wherein the piston section comprising a piston chamber housing a piston head;{'b': 1', '70', '71', '72, 'wherein said piston chamber () comprises a piston chamber seal side end (), piston chamber non-seal side end (), and piston chamber peripheral side wall ();'}{'b': 6', '7, 'wherein said piston chamber seal side end and said piston chamber non-seal side end define opposite ends of said piston chamber; wherein said piston chamber seal side end has surfaces that define a seal side aperture (); wherein said piston chamber non-seal side end has surfaces that define non seal side aperture () so that said seal side aperture and said non seal side aperture are in opposite ends of said piston chamber;'}wherein said valve section comprises a first pneumatic line connecting to the piston chamber via said seal side aperture in said piston chamber seal side end;wherein said valve section comprises a second pneumatic line connecting to the piston chamber via said non seal side aperture in said piston chamber non-seal side end;wherein said valve section comprises at least four one way valves;wherein said valve section is configured to pass fluid out of said piston chamber via said seal side aperture in said piston chamber seal side end and to pass fluid into said piston chamber via said non seal side aperture in said piston chamber non-seal side end when said piston head moves towards said piston chamber seal side end, and said valve section is configured to pass fluid into said piston chamber via said seal side aperture in ...

USING GRAVITY AND PIEZOELECTRIC ELEMENTS TO PRODUCE ELECTRIC POWER

A hydroelectric power plant comprising a pipe from a water source in a mountain range which is made to open into a much larger in diameter piston cylinder at a much lower elevation. The piston therein is driven by water pressure to drive a gear train operatively connected to an electric generator on its far end. The piston is made to move slowly under great force, while the generator is made to turn at a much greater velocity, producing electricity. Water pressure may be derived from some municipal water systems. Much less water is expended through the device than by using a turbine, as in U.S. Pat. No. 1,774,603. Instead of a piston, piezoelectric elements may be used with shut-off valves on either side of the elements. By alternating the operation of these valves intense pressure waves may be induced to produce electricity. This obviates the need for turbines and generators for hydroelectric power generation. 1. A hydroelectric power plant comprising:a. a water source at a high elevation,b. a pipe means operatively connected to said water source at a first end and filled with water,c. a faucet means operatively connected to said pipe means second end at a lower elevation,d. a piston means,e. a gear train means arranged to increase the angular velocity of its final element, andf. a generator means, all operatively connected so pressurized water made to enter through said faucet means is made to drive said piston means, said gear train means, and said generator means so electric power is produced.2. The gear train means of wherein a large and small gear means is mounted on a single axle.3. The gear train means of wherein said gear train comprises spur gears.4. The piston means of wherein said piston within a piston is within a cylinder sleeve and sealed with O-rings.5. A hydroelectric power plant comprising:a. a water source at a high elevation,b. a pipe means operatively connected to said water source at a first end and filled with water,c. a chamber operatively ...

Fluid-Driven Linear Motor

A fluid-driven linear motor comprises a cylinder (), a piston () and a piston rod () connected to the piston (), wherein the two sides of the piston () in the cylinder () are alternatively supplied with fluid from a slide valve arrangement, the slide valve arrangement including a slide () accommodated in a chamber and which is shifted between its end positions controlled by a pilot rod () coaxially mounted in a through bore () in the slide (). The pilot rod () is adapted to alternately set the through bore () in fluid connection with the ends of the slide () when the piston () is located in its end positions. The pilot rod () is provided with an extension rod () adapted to slide inside a bore () inside said piston () and said piston rod (), so that the stroke length of the linear motor can be extended. Moreover, a pressure chamber () is provided at the distal end of the pilot rod (), said pressure chamber () being adapted to hold on the pilot rod () with a holding force when in its end positions until mechanical forces from the piston overcome said holding force. 13-. (canceled)4. A fluid-driven linear motor , comprising:a cylinder;a piston having a piston rod, the piston being within the cylinder, the piston and the piston rod being provided with a bore, the bore including a collar adjacent to the piston;a slide valve arrangement for alternately supplying two sides of the piston with a fluid in the cylinder, the slide valve arrangement including a slide accommodated in a chamber and which is shifted between end positions controlled by a pilot rod coaxially mounted in a through-bore in the slide, the pilot rod being adapted to alternately place the through-bore in fluid connection with the ends of the slide when the piston is located in its end positions;an extension rod having a first end connected to the pilot rod at a junction and a second end terminating in an end stopper, the extension rod sliding inside the bore of the piston and piston rod, the junction and ...

DEVICE FOR SUPPLYING AND MODIFYING A CYLINDER CUBIC CAPACITY OF A HYDRAULIC MOTOR

A device for supplying and modifying the cylinder cubic capacity of a hydraulic motor, comprising: a first conduit () for supplying and discharging an operating fluid to a first side of the hydraulic motor (M); a second conduit () for supplying and discharging an operating fluid to a second side of the motor (M); an actuator () provided to modify the cubic capacity of the motor (M); an increase conduit () for increasing the cubic capacity of the motor (M), connected to the actuator () for supplying operating fluid to a side of the actuator () which produces an increase of the cubic capacity of the motor (M); a reduction conduit () for reducing the cubic capacity of the motor (M), connected to the actuator () for supplying operating fluid to a side of the actuator (), which produces a reduction of the cubic capacity of the motor (M). The device is structured to supply to the increase conduit () and to the reduction conduit () a proportional pressure to the load acting on the winch. 112331333233. A device for supplying and modifying a cylinder cubic capacity of a hydraulic motor , comprising: a first conduit () for supplying and discharging an operating fluid to a first side of the hydraulic motor (M); a second conduit () for supplying and discharging an operating fluid to a second side of the hydraulic motor (M); an actuator () , suitable for modifying a cubic capacity of the motor (M); an increase conduit () for increasing the cubic capacity of the motor (M) , connected to the actuator () for supplying operating fluid to a side of the actuator () which produces an increase of the cubic capacity of the motor (M); a reduction conduit () for reducing the cubic capacity of the motor (M) , connected to the actuator () for supplying operating fluid to a side of the actuator () which produces a reduction of the cubic capacity of the motor (M);characterised in that:{'b': '41', 'is it comprises a first piloting conduit ();'}{'b': 5', '1', '2', '41, 'it comprises a bistable ...

Actuating Piston and Adjustment Installation

An actuating piston for a hydrostatic adjustment installation includes at least one sealing and guiding unit which is insertable into a circumferential recess of an actuating piston. The circumferential recess is composed of two regions, and has the effect of improving the guiding and sealing of the actuating piston. The actuating piston is arranged in an adjustment installation.

HYDRAULIC MACHINE

A hydraulic device can include two or more rings, a rotor having a plurality of vanes, and an adjuster. The two or more rings can be rotatably mounted within the hydraulic device and arranged adjacent one another configured for relative rotation with respect to one another. The rotor can be disposed for rotation about an axis within the two or more rings and can have a plurality of circumferentially spaced slots, each slot having at least one of the plurality of vanes located therein. The plurality of vanes can be configured to be movable between a retracted position and an extended position where the plurality of vanes work a hydraulic fluid introduced adjacent to the rotor. The adjuster can be configured to translate linearly to rotatably position the two or more rings relative to one another to increase or decrease a displacement of the hydraulic fluid between the rotor and the two or more rings. 1. A hydraulic device comprising:two or more rings rotatably mounted within the hydraulic device and arranged adjacent one another configured for relative rotation with respect to one another;a rotor disposed for rotation about an axis within the two or more rings, the rotor having a plurality of circumferentially spaced slots configured to house a plurality of vanes therein, the plurality of vanes configured to be movable between a retracted position and an extended position where the plurality of vanes work a hydraulic fluid introduced adjacent the rotor; andan adjuster configured to translate linearly to rotatably position the two or more rings relative to one another to increase or decrease a displacement of the hydraulic fluid adjacent the rotor and the two or more rings.2. The hydraulic device of claim 1 , wherein the two or more rings are selectively rotatable relative to one another between a fully registered position where the inner surfaces of the two or more rings are in-phase with one another so that the inner surfaces substantially align and a fully ...

Hydrostatic Axial Piston Machine

A hydrostatic axial piston machine includes a drive shaft and a plurality of cylinder sleeves in which a spherical or ball-shaped section and a spherical or ball-shaped piston are inserted to delimit a respective displacer chamber. The sections are secured on a rotor, while the pistons are secured on a piston disk or piston drum. The piston disk is configured to be tilted at different pivoting angles relative to the rotor in a variable-displacement machine, or the piston disk is tilted continuously relative to the rotor in a constant-displacement machine. The rotor and the piston disk are coupled to one another for conjoint rotation by a driving device. The rotor and the piston disk can also be coupled indirectly by a drive shaft of the machine. A sliding joint axial with respect to a drive shaft is arranged between the rotor and the piston disk.

HYDRAULIC AUTOMATIC TRANSMISSION BICYCLE

This disclosure generally relates to an automatic bicycle, particularly to a hydraulic automatic transmission bicycle which can automatically and adaptively change gear ratios. More particularly, this disclosure relates to those hydraulic automatic transmission bicycles which use fluid pressure to change such gear ratios, and which include various hydraulic automatic transmissions which may be provided in various configurations and may operate in various methods and sequences to provide automatic and infinitely variable gear ratios. 1. A hydraulic automatic transmission comprising:at least one hydraulic motor;at least one hydraulic pump capable of pressurizing fluid contained therein and capable of discharging said pressurized fluid to said hydraulic motor; andat least one control unit,wherein said hydraulic motor includes a motor driving axis and generates mechanical power for rotating said motor driving axis using said pressurized fluid received form said hydraulic pump, wherein a motor pressure is a pressure of said fluid inside said hydraulic motor, and wherein said hydraulic motor increases or decreases said motor pressure as external mechanical load respectively increases or decreases,wherein said hydraulic pump includes a pump driving axis, defines a pump driving volume, and discharges a pump discharging volume of said pressurized fluid to said hydraulic motor per a rotation of said pump driving axis, while pressurizing said fluid contained in said pump to a pump pressure which is higher than said motor pressure using mechanical energy supplied to said pump, andwherein said hydraulic pump changes said pump discharging volume in response to changes in said mechanical load, whereby a ratio of a first number of rotations of said pump driving axis to a second number of rotation of said motor driving axis automatically changes in response to said mechanical load,wherein said control unit is capable of manipulating said pump driving volume in response to changes in ...

HYDRAULIC MACHINE HAVING TWO CYLINDER CAPACITIES AND A SAFETY VALVE

The machine comprises distribution ducts connected to respective ones of first, second, and third enclosures (), and a cylinder-capacity selector () suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure () is connected to one of the main ducts (), while the first and third enclosures () are connected to the other main duct (), and a small cylinder capacity configuration in which the second and third enclosures () are connected to said one of the main ducts (), while the first enclosure is connected to the other main duct (). The machine further comprises a safety valve () having at least a first port () connected to said one of the main ducts (), and a second port () connected to the third enclosure (). Said safety valve is suitable, when the cylinder-capacity selector () is caused to go into the large cylinder capacity, for being caused to go into a first configuration that isolates the first and second ports () from each other, and, when the cylinder-capacity selector is caused to go into its small cylinder capacity, for being caused to go into a second configuration that interconnects the first and second ports (). 1. A hydraulic machine comprising at least two active operating cylinder capacities and suitable for being connected to two main ducts , respectively a main feed duct and a main discharge duct , the machine comprising:two series of distribution ducts, each of which has first and second groups of distribution ducts, the first group of distribution ducts of the first series being connected to a first enclosure, the second groups of distribution ducts of the first and second series being connected to a second enclosure, and the first group of distribution ducts of the second series being connected to a third enclosure;a cylinder-capacity selector suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure is connected to one of the main ducts, while the ...

Structure of a rotation device, and a corresponding rotation device, and a forest machine

A rotation device arrangement includes a structure and a suspension part for suspending the rotation device from a boom. The structure includes a first inner body part and first conduits for leading a pressure medium through the first inner body part. A second outer body part is arranged at least partly around the first inner body part completely rotatably. First connections are fitted for leading the pressure medium through the second outer body part. Second conduits are fitted to at least one of an outer surface belonging to the first inner body part and an inner surface belonging to the second outer body part for leading the pressure medium from the first conduit to the first connections. A bearing is arranged to permit the second outer body part to rotate and to carry loads axially and radially. Second connections attach a direct-drive pressure-medium operated turning device to the structure coaxially to transmit torque.

Variable controlled reciprocation device for fluids

An axial reciprocation device having a main piston and an anchor piston coupled to one another via a swivel joint interconnecting 20 a pair of connecting rods, the main piston positioned in a main cylinder bore and the anchor piston positioned in an anchor piston bore of a housing, such that the main piston is configured for axial reciprocation in the main cylinder bore; wherein variable positioning of the anchor piston along the anchor piston bore results in variable displacement of the main piston of hydraulic fluid with respect to an inlet/outlet port of the housing.

Oscillating actuator

To provide an oscillating actuator which is capable of easily changing an oscillation start position of a shaft. An oscillating actuator includes an actuator main body 2 having a shaft 4 which is configured to oscillate about an axis L in a predetermined range of angle by means of a compressed air, and a fixing plate 3 for fixing the actuator main body 2 to a load device 30 , wherein the actuator main body 2 and the fixing plate 3 are connected together by a connection mechanism 5 so as to be displaceable relative to each other in the rotation direction of the shaft 4 so that an oscillation start position A of the shaft 4 is changed by displacement of the actuator main body 2 and the fixing plate 3 relative to each other.

Hydraulic Machine Comprising Cylinders Provided With Angularly Offset Openings

A hydraulic machine comprising a drum () rotated by an input shaft, comprising cylinders () distributed around the shaft, each receiving a piston that slides on the basis of the rotation of the shaft, each cylinder opening at an opening () on a transverse face of the drum bearing on a plate having inlet and outlet manifolds, the openings () comprising, relative to the cylinders () of same, angular offsets comprised within a total offset range, characterised in that the offsets of the openings () are disposed at one end or the other of this offset range. 1. A hydraulic machine comprising a drum rotationally driven by an input shaft , comprising cylinders distributed around the axis , each receiving a piston sliding as a function of the shaft rotation , each cylinder protruding through an opening from the transverse face of the drum and resting against a circular plate having input and output manifolds , the openings comprise , relative to their cylinders , angular offsets comprised within a total offset range , wherein the offsets of these openings are disposed on both ends of this offset range.2. The hydraulic machine according to claim 1 , wherein the total range of offsets of the openings is between 2° and 4°.3. The hydraulic machine according to claim 1 , wherein the offset range for each cylinder is centered on the axis of the corresponding cylinder.4. The hydraulic machine according to claim 1 , wherein the hydraulic machine comprises nine pistons comprising opening offsets on both sides of the offset range claim 1 , which follow the following sequence for an offset noted “0” on one side and “1” on the other side: 1; 0; 0; 1; 0; 1; 1; 1; 0.5. The hydraulic machine according to claim 1 , wherein the offset sequence of the openings is determined by according to a calculation method using a “Scrambler” type sequence interference method.6. The hydraulic machine according to claim 5 , wherein said calculation method comprises an additive calculation method claim 5 , ...

PUMPING DEVICE FOR A WASTE HEAT RECOVERY APPARATUS IN A MOTOR VEHICLE

A pumping device may include a pump housing partially delimiting a working chamber, and a piston arranged therein, axially movable between first and second positions in which the working chamber has maximum and minimum volumes, respectively. The pumping device may include first and second fluid lines for introducing and discharging fluid to/from the working chamber, respectively. The first fluid line may be an annular fluid channel, fluidically connected to the working chamber via a breakthrough formed in the pump housing at an end face of the working chamber opposite the piston, running transversely to the axial direction at least in the area of the breakthrough. The second fluid line may open obliquely into the working chamber in an area of the second position, relative to the axial direction in an end face delimiting the working chamber towards the first fluid line. The pumping device may include first and second valves for fluid-tight closures of the first and second fluid lines, respectively, the second valve communicating fluidically with the working chamber directly. 1. A pumping device for a waste heat recovery apparatus , comprising:a pump housing partially delimiting a working chamber that is fillable with a fluid;a piston arranged in the working chamber and movable along an axial direction between a first position in which the working chamber has a maximum volume and a second position in which the working chamber has a minimum value, volume;a first fluid line for introducing the fluid into the working chamber;a second fluid line for discharging the fluid from the working chamber, the second fluid line opening into the working chamber in an area of the second position of the piston;wherein the first fluid line is fluidically connected to the working chamber via a breakthrough formed in the pump housing at an end face of the working chamber opposite the piston;wherein a first valve for a fluid-tight closure of the first fluid line with respect to the ...

DISTRIBUTION DEVICE FOR A HYDRAULIC MACHINE AND A HYDRAULIC MACHINE FITTED WITH SUCH A DEVICE

The devices comprises a distributor () that presents distribution ducts opening out into a radial distribution face (A), and a distributor-counterpart engaged in each other in such a manner that two main enclosures () are provided between their opposite axially-extending faces. The device comprises a cylinder-capacity selector comprising two slides () arranged after the other in a bore () of the element engaged in the other, to which are connected the main enclosures () and at least some of the distribution ducts (). The slides are able to adopt at least three distinct configurations establishing different connections between the main ducts () and the distribution ducts via the main enclosures, in order to be able to obtain at least three distinct operating cylinder capacities. 1. A distribution device for a hydraulic machine comprising a distributor that presents distribution ducts opening out into a radial distribution face , and a distributor-counterpart , one of the elements constituted by the distributor and by the distributor-counterpart being engaged in the other of said elements , in such a manner that said elements present respective opposite axially-extending faces between which first and second main enclosures are provided , the device comprising first and second cylinder-capacity selection slides arranged one after the other in a bore of one of the elements constituted by the distributor and by the distributor-counterpart , which bore is connected to the main enclosures and to at least some of the distribution ducts , said slides being configured to adopt at least three distinct configurations establishing different connections between the main ducts and the distribution ducts via the main enclosures , thus defining at least three distinct operating cylinder capacities.2. The device as claimed in claim 1 , wherein the bore is arranged axially and the slides are movable axially in order to define said distinct configurations.3. The device as claimed in ...

Hydraulic Machine Including an Improved Braking System

A hydraulic machine including: a casing rotatably mounted relative to a shaft; first brake means constrained to rotate with the casing; second brake means constrained to rotate with the shaft, and adapted to co-operate with the first brake means; a braking piston associated with return means and tending to exert a braking force; and a brake-release chamber adapted to be connected to a pressure force so as to apply a brake-release pressure selectively to the braking piston, so as to enable the first and second brake means to be separated; said hydraulic machine including a sweeping channel arranged in the shaft so as to define a leakage flow between the brake-release chamber and an internal volume of the casing. 1. A hydraulic machine comprising:a casing rotatably mounted relative to a shaft;a cylinder block provided with a plurality of pistons arranged in an internal volume of the casing;first brake means constrained to rotate with the casing;second brake means constrained to rotate with the shaft, and adapted to co-operate with the first brake means;a braking piston adapted to act on the first brake means or the second brake means, said braking piston being associated with return means tending to exert a force on the braking piston tending to act on the first and/or second brake means so as to put them into contact; anda brake-release chamber adapted to be connected to a pressure force so as to apply a brake-release pressure selectively to the braking piston, thereby tending to oppose the force applied by the return means on the braking piston, so as to enable the first and second brake means to be separated;said hydraulic machine comprising a sweeping channel arranged in the shaft so as to define a leakage flow between the brake-release chamber and an internal volume of the casing containing the cylinder block.2. The hydraulic machine according to claim 1 , wherein the sweeping channel is provided with a constriction.3. The hydraulic machine according to claim 1 , ...

HYBRID ELASTOMER/METAL ON METAL MOTOR

A hybrid elastomer/metal on metal motor for a helical gear device includes a rotor and stator comprising a hydraulic motor that produces work when a working fluid is pumped therethrough. The improvement involves the stator being, for part of its length, a conventional or even wall stator, using an elastomer to form a seal against the moving rotor. The stator's remaining length comprises a profiled rigid surface that forms a seal directly with the moving rotor. This gives the motor the high efficiency of the elastomer sealing against the rotor, and simultaneously provides a backup of the stator's rigid section allowing continued motor operation at reduced efficiency, if the elastomer part failed in service. The invention also includes combinations of a regular disk stack with a rubber lining, a rigid material disk stack (or unitized element) and a circular rigid sleeve which react to rotor sideloading while permitting proper rotor orbiting. 1. A method of making a stator for a hydraulic motor adapted to have an elongated and helically-lobed rotor rotatably disposed therein , said method comprising:forming a cylindrical stator housing;providing an alignment core tool having at least one rigid section positioned thereon and at least one rigid sleeve positioned thereon, said at least one rigid section comprising a helically-convoluted chamber and said at least one rigid sleeve having a cylindrical chamber section;inserting said alignment core tool with said at least one rigid section and said at least one sleeve thereon into said cylindrical stator housing;securing said at least one rigid section and said at least one sleeve to said cylindrical stator housing;replacing said alignment core tool with an injection core tool, said injection core tool comprising a predetermined stator profile that comprises at least one more lobe than a number of said rotor lobes;injecting an elastomeric material into said cylindrical stator housing to form a tubular elastomeric section ...

Hydraulic system

The present application is directed to a system for converting linear motion to rotary motion. The system includes at least first and second cylinders. The first and second cylinders are in fluid communication with each other. The system also includes a first piston. The first piston is slidably disposed in the first cylinder. The system further includes a second piston. The second piston is slidably disposed in the second cylinder. The first and second cylinders contain an incompressible fluid. The first piston is in operative connection with the second piston such that movement of the first piston in a first direction causes movement of the second piston in a second direction, wherein the second direction is opposite the first direction.

Liquid ring system and applications thereof

The present disclosure concerns liquid ring systems, including (i) a fixed or rotating casing adapted to contain a liquid, (ii) a rotor located within the casing and having at least one impeller, (iii) a liquid ring formed by rotation of the rotor or the casing, and (iv) a plurality of gas cells formed between the inner surface of the liquid ring and vanes of the impeller. For example, at least one compressing gas cell is in fluid connection with at least one expanding gas cell integrated with the rotor. A liquid valve may include a small gas cell with a reciprocating liquid surface and at least two fluid connections having a free pathway between the connections during an angle of rotation of the rotor and a closed pathway between the connections during 360° minus the angle of rotation.

Method for Operating an Axial Piston Machine of Swashplate Design

A method for operating an axial piston machine of swashplate design, in which a swashplate is settable by means of an adjustment device, and in which a controlled variable of the axial piston machine is regulated by predetermining a manipulated variable. Under the assumption of a constant intended value of the controlled variable, a future profile of the controlled variable is ascertained using a model of the axial piston machine in which respective current values of at least one operating variable of the axial piston machine, which comprises the controlled variable, and a current value of the manipulated variable are taken into account. A value to be set for the manipulated variable is ascertained and set taking into account the future profile of the controlled variable.

Radial Piston Machine having Braking Means Secured against Twisting

A radial piston machine includes a housing, rotor, first braking member, and brake ring with a second braking member. The rotor is mounted in the housing to be rotatable relative to an axis of rotation, and has an end face facing in a direction of the axis of rotation. The first braking member is positioned on the end face. The housing has a body defining a ring-shaped extension relative to the axis of rotation. The brake ring is positioned to surround the extension and is configured to be movable in the direction of the axis of rotation so as to bring the second braking member into braking engagement with the first braking member. The brake ring is further configured to positively engage with an inner radial side of the extension to limit a twisting between the housing and brake ring. 1. A radial piston machine , comprising: a control surface that runs continuously around an axis of rotation, wherein a spacing between the axis of rotation and the control surface varies along the circumference of the control surface; and', 'a ring-shaped extension in relation to the axis of rotation;, 'a housing that includes a body defininga rotor mounted in the housing so as to be rotatable relative to the axis of rotation and so as to face the control surface, the rotor having an end face facing in a direction of the axis of rotation;a first braking member positioned on the end face of the rotor; be movable in the direction of the axis of rotation so as to bring the second braking member into braking engagement with the first braking member; and', 'positively engage an inner radial side of the extension of the housing to limit a twisting between the housing and the brake ring; and, 'a brake ring that is separate from the housing, that is positioned so as to surround the extension of the housing, that includes a second braking member, and that is configured to the control surface delimits a path of movement for the piston that is directed radially outwards; and', 'a radial inner ...

HYDROSTATIC RADIAL PISTON MACHINE

The invention relates to a hydrostatic radial piston motor, in particular a hydrostatic radial piston motor for actuating a differential cylinder. According to the invention, the hydrostatic motor in radial piston configuration comprises a control stud in a housing, the hydrostatic motor having three hydraulic working connections. The first working connection can be connected to the piston-end of a differential cylinder, while the second working connection can be connected to the rod-end of the differential cylinder. Finally, the third working connection can be connected to a tank. Owing to this arrangement, the differential cylinder can be directly operated with the aid of a single hydrostatic motor, with it being possible to forgo interposing proportional or control valves. 1100110110130120. Hydrostatic motor () in radial piston configuration comprising a displacement unit () , the displacement unit () being actuated by a drive motor (M) and having a housing () in which a control stud () is arranged ,{'b': '100', 'characterized in that the hydrostatic motor () has at least three hydraulic working connections.'}2100. Hydrostatic motor () according to claim 1 ,characterized in that{'b': '120', 'the control stud () has a first control window (Port A) connected to a first working connection (A), a second control window (Port B) connected to a second working connection (B), and a third control window (Port T) connected to a third working connection (T).'}3100. Hydrostatic motor () according to any of the preceding claims claim 1 ,characterized in thatthe second control window (Port B) has a smaller cross section than the first control window (Port A).4100. Hydrostatic motor () according to any of the preceding claims claim 1 ,characterized in thatthe third control window (Port T) has a smaller cross section than the first control window (Port A).5100. Hydrostatic motor () according to any of the preceding claims claim 1 ,characterized in thatthe third control window ( ...

SEAL DEVICE FOR HYDRAULIC CIRCUIT

In a seal device for a hydraulic circuit, in which an oil passage that supplies hydraulic oil to or discharges the hydraulic oil from a hydraulic actuator operated by hydraulic pressure is formed over at least two members that relatively move, and a seal member that seals a gap between the two members in a liquid-tight manner is disposed in an interior of a groove section that is formed in at least either one of the two members, a communication section that allows the groove section to communicate with any portion of the oil passage such that the hydraulic oil in the interior of the groove section moves along with supply of the hydraulic oil to or discharge of the hydraulic oil from the hydraulic actuator is formed. 116-. (canceled)17. A seal device for a hydraulic circuit comprising:an oil passage that supplies hydraulic oil to or discharges the hydraulic oil from a hydraulic actuator operated by hydraulic pressure, and is formed over at least two members that relatively move;a seal member that seals a gap between the two members in a liquid-tight manner is disposed in an interior of a groove section that is formed in at least either one of the two members; anda communication section that allows the groove section to communicate with any portion of the oil passage such that the hydraulic oil in the interior of the groove section moves along with supply of the hydraulic oil to or discharge of the hydraulic oil from the hydraulic actuator, whereinthe oil passage includes a supply passage that supplies the hydraulic oil to the hydraulic actuator and a discharge passage that discharges the hydraulic oil from the hydraulic actuator, andthe communication section includes a supply communication section that communicates with the supply passage and a discharge communication section that communicates with the discharge passage.18. A seal device for a hydraulic circuit comprising:an oil passage that supplies hydraulic oil to or discharges the hydraulic oil from a hydraulic ...

Radial Piston Motor

A radial piston motor includes a cam body and a working member. The cam body includes circumferentially arranged lobes. Each lobe includes a cam section for guiding a piston radially outwards. Each cam section includes a deceleration phase configured to radially decelerate an engaging piston in the case of constant rotational speed and an acceleration phase configured to radially accelerate an engaging piston in the case of constant rotational speed. The working member is rotatable relative to the cam body and has circumferentially arranged pistons. The number of pistons and the number of lobes have the number one as the only common factor and the numbers differ from each other. The deceleration phase is smaller than the acceleration phase. 1. A radial piston motor , comprising: a deceleration phase configured to radially decelerate an engaging piston in a case of constant rotational speed; and', 'an acceleration phase configured to radially accelerate an engaging piston in the case of constant rotational speed; and, 'a cam body including a plurality of circumferentially arranged lobes, each lobe including a cam section configured to guide a piston radially outwards, each cam section including'}a working member configured to be rotatable relative to the cam body, disposed inside the cam body, and including a plurality of circumferentially arranged pistons,wherein a common factor of the total number of pistons of the plurality of circumferentially arranged pistons and the total number of lobes of the plurality of circumferentially arranged lobes is one,wherein the common factor of one is the only common factor,wherein the total number of pistons differs from the total number of lobes, andwherein the deceleration phase is smaller than the acceleration phase.2. The radial piston motor according to claim 1 , wherein claim 1 , in at least one rotational position claim 1 , exactly one piston lies within the deceleration phase.3. The radial piston motor according to claim ...

Load Balanced Power Section of Progressing Cavity Device

A progressing cavity device operates as a motor to impart torque to a bit. A stator of the device defines an internal profile having uphole stages with a first dimension being less than a second dimension of downhole stage. A rotor has an external profile with a constant outer dimension along its length. Disposed in the stator, the rotor defines cavities with the stator and is rotatable with pumped fluid progressing in the cavities from the uphole to downhole to transfer torque to the drive toward the downhole end. Although the rotor is subjected at the downhole end to a reactive torque from the bit, the interference fit of the rotor's constant dimension with the stator's downhole stages is less than with the uphole stages, which can mitigate issues with heat buildup in the downhole stages. The device can also operates as a progressing cavity pump. 1. A progressing cavity device for imparting a first torque to a drive using fluid pumped along a tubular , the device comprising:a housing coupling in fluid communication with the tubular, the housing having an uphole end and a downhole end and defining a bore therethrough;a stator lining disposed in the bore of the housing and defining an internal profile along a first length of the stator lining, the internal profile at least having a first portion toward the uphole end of the housing with a first internal dimension being less than a second internal dimension of at least a second portion toward the downhole end of the housing; anda rotor having an external profile along a second length of the rotor and disposed in the internal profile of the stator lining, the rotor defining a plurality of sealed stage cavities with the stator lining, the rotor being torqued in the stator lining in response to the pumped drilling fluid progressing in the sealed stage cavities from the uphole end to the downhole end and transferring the first torque to the drive toward the downhole end, the external profile having an outer dimension ...