摘要:
A compressor of the present invention includes a crank shaft, a bearing, a casing, an outer-race gear that is disposed so as to surround the crank shaft, a planetary gear that has a radius of a pitch circle set to a half of a radius of a pitch circle of the outer-race gear and causes the crank shaft to be inserted therethrough so that the planetary gear rotates relative to the crank shaft, a piston that is connected to the planetary gear so as to rotate relative to the planetary gear and moves in a reciprocating manner in the direction parallel to the radial direction of the outer-race gear inside the casing in a manner such that the planetary gear rotates inside the outer-race gear while engaging with the outer-race gear, and a pump that supplies lubricant to the bearing. Here, the pump is accommodated inside the casing.
摘要:
A pump assembly comprises a base, a cam, a cylinder, a piston, and a shim clip. The cam rotates about a rotational axis with respect to the base. The cylinder attaches to the base, and has an inlet port and an outlet for fluid. The piston is reciprocally driven by rotation of the cam to draw fluid into the cylinder through the inlet port during a fill stroke, and to close the inlet port and pump fluid in the cylinder toward the offset during a pump stroke. The shim clip is removably insertable between the cylinder and the base to increase the distance between the inlet port and the rotational axis.
摘要:
A fluid device includes a housing defining a fluid inlet and a fluid outlet. A variable displacement assembly is in fluid communication with the fluid inlet and the fluid outlet. The variable displacement assembly includes a rotor assembly, a flexible ring, and a plurality of ring supports. The rotor assembly includes a rotor having a plurality of reciprocating members. The flexible ring is disposed about the rotor assembly. The flexible ring includes an inner surface, which is adapted for engagement with the plurality of reciprocating members, and an outer surface. The plurality of ring supports is disposed about the flexible ring. Each of the plurality of ring supports includes a support portion and a pivot portion about which the ring support selectively pivots. The support portion is adapted for engagement with the outer surface of the flexible ring.
摘要:
Die Erfindung betrifft eine Exzenterpumpe (1) umfassend ein Gestell (15), eine um eine bezüglich des Gestells (15) ortsfeste Hauptachse (16) drehbar gelagerte, mittels einer Antriebsvorrichtung (73) antreibbare Pumpenwelle (3), eine auf einem Pumpenwellenabschnitt (23) axial verschiebbar gelagerte Exzenterhülse (17), eine zwischen Pumpenwellenabschnitt (23) und Exzenterhülse (17) wirksame Verdrehsicherung (27), mehrere bezüglich des Gestells (15) ortsfest angeordnete Pumpenelemente (5) mit radial zur Hauptachse (16) bewegbaren, auf ein in Hubräumen (8) der Pumpenelemente (5) enthaltenes Fluid einwirkenden Verdrängungselementen (6), die von einer Mantelfläche (18) der Exzenterhülse (17) gegen einen Fluiddruck verschoben werden sowie zumindest ein auf die Exzenterhülse (17) in axialer Richtung wirkendes Federelement (39). Dabei ist der Pumpenwellenabschnitt (23) als schräger Exzenterzapfen (24) mit einer zur Hauptachse (16) in einem Schrägungswinkel (26) verlaufenden Exzenterzapfenachse (25) ausgebildet und die auf dem Exzenterzapfen (24) geführte Exzenterhülse (17) weist eine zylindrische Mantelfläche (18) auf, deren Erzeugenden (20) parallel zur Hauptachse (16) verlaufen.
摘要:
Hydraulische Kolbenmaschine, umfassend einen oder mehrere Zylinder (23) mit darin geführtem Förderkolben (1), wobei die Zylinder (23) ein Einlass-(13) und ein Auslassventil (17) sowie einen Elementenraum (16) aufweisen und mit einer Fördermengenregelung und einer Antriebswelle (8) zur Ansteuerung der Förderkolben (1), wobei eine Steuerwalze (3) vorgesehen ist, die über die Antriebswelle (8) angetrieben und in axialer Richtung verschieblich ist, wobei die Steuerwalze (3) an ihrem Umfang eine Steuerkante (4) aufweist, die einen solchen Verlauf hat, dass je nach axialer Position der Steuerwalze (3) eine Bypassbohrung (15) in den Zylindern (23) verschlossen oder während eines Förderzyklusses des Förderkolbens (1) ganz oder teilweise zeitlich freigegeben ist.
摘要:
The invention relates to a radial piston pump for supplying fuel to the driving gear of a plane. The individual star-shaped pistons (22) are arranged in two groups which are situated next to each other in axially separated planes. The pistons (22) of each group are axially displaced in their respective cylinder chambers (24) by means of an eccentric actuating body which is arranged on a drive shaft (14). An axially displaceable regulating shaft (50) is located in the drive shaft (14), by which means the eccentricity of the actuating bodies can be adjusted. The quantity of fuel supplied can thus be linearly modified between a maximum value and a minimum value.
摘要:
A variable-displacement hydraulic motor with radial cylinders supplied by a rotary fluid distributor (4) and acting on an eccentric ring (6) axially secured to a crankshaft (7) but capable of moving radially with respect thereto, being provided with a device for operating and controlling the variation of eccentricity of eccentric ring (6) with respect to crankshaft (7), which comprises at least one pair of actuating pistons (8, 9) located in counterposition to and independent of one another, arranged in a radial sense between shaft (7) and ring (6), each of which is made mechanically integral with such eccentric ring (6) via appropriate means of connection (8a, 9a), and at least one pair of cross-connected valves (10) to block the flow of the fluid operating such actuating pistons (8, 9).
摘要:
A variable-displacement hydraulic motor with radial cylinders supplied by a rotary fluid distributor (4) and acting on an eccentric ring (6) axially secured to a crankshaft (7) but capable of moving radially with respect thereto, being provided with a device for operating and controlling the variation of eccentricity of eccentric ring (6) with respect to crankshaft (7), which comprises at least one pair of actuating pistons (8, 9) located in counterposition to and independent of one another, arranged in a radial sense between shaft (7) and ring (6), each of which is made mechanically integral with such eccentric ring (6) via appropriate means of connection (8a, 9a), and at least one pair of cross-connected valves (10) to block the flow of the fluid operating such actuating pistons (8, 9).
摘要:
A pump assembly comprises a base, a cam, a cylinder, a piston, and a shim clip. The cam rotates about a rotational axis with respect to the base. The cylinder attaches to the base, and has an inlet port and an outlet for fluid. The piston is reciprocally driven by rotation of the cam to draw fluid into the cylinder through the inlet port during a fill stroke, and to close the inlet port and pump fluid in the cylinder toward the offset during a pump stroke. The shim clip is removably insertable between the cylinder and the base to increase the distance between the inlet port and the rotational axis.