Abstract:
The invention relates to a device for converting pneumatic energy into hydraulic energy, comprising at least one pneumatic cylinder (1) for relaxation of a pressurized gas and at least one hydraulic cylinder (7) mounted in a hydraulic circuit, wherein the pneumatic cylinder (1) and the hydraulic cylinder (7) are connected to each other by a transmission arrangement coupling a pneumatic piston (2) mounted in the pneumatic cylinder (1) with a hydraulic piston (8) mounted in the hydraulic cylinder (1). Improved efficiency can be achieved in that the transmission arrangement has a transmission ratio (i) which differs depending on the position of the pistons (2, 8).
Abstract:
Eine Pumpvorrichtung (1), insbesondere zum Pumpen von Wasser, umfasst wenigstens einen ersten Zylinder (2A) und einen zweiten Zylinder (2B), in denen jeweils ein Kolben (3) mit einer damit verbundenen Kolbenstange (4) verschiebbar geführt ist. Jeder der Zylinder (2A, 2B) weist ein vorderes Ende (5) und ein hinteres Ende (6) auf. Die Kolbenstangen (4) treten jeweils am hinteren Ende (6) aus den Zylindern (2A, 2B) aus und sind derart miteinander gekoppelt, dass ein Verschieben des Kolbens (3) eines der Zylinder (2A, 2B) zum hinteren Ende (6) dieses Zylinders (2A, 2B) hin ein Verschieben des Kolbens (3) des anderen Zylinders (2B, 2A) zu dessen vorderen Ende (5) hin bewirkt und umgekehrt. Jeweils im Bereich des hinteren Endes (6) führt wenigstens ein Leitungsanschluss (17) in jeden der Zylinder (2A, 2B). In den Zylindern (2A, 2B) ist jeweils zwischen dem Kolben (3) und dem vorderen Ende (5) ein Arbeitsfluid (9), dem im Bereich des vorderen Endes (5) über eine Wärmeeinrichtung (11) Wärme zuführbar ist, aufgenommen. Die Zufuhr der Wärme ist durch eine Steuereinrichtung (25) derart gesteuert, dass die Wärmezufuhr an das Arbeitsfluid (9) des einen Zylinders (2A, 2B) unterbrochen ist, während dem Arbeitsfluid (9) des anderen Zylinders (2B, 2A) Wärme zugeführt wird, und umgekehrt.
Abstract:
The invention relates to a fluid-actuated working device comprising a housing (2) and a piston rod (6) which can be displaced with regard to the housing (2) by fluid force. At least one control valve (38, 38') which can be actuated according to the position of the piston rod (6) contains a control element. Said control element controls the fluid connection between two fluid chambers (46, 47) by interacting with a sealing area (43, 43') fixed to the housing. The control element is directly formed by the piston rod (6) which is correspondingly contoured on the outer periphery.
Abstract:
A device develops the suction and discharge of the stock fluid through the motion of a movable biasing boundary within a cavity. The movable biasing boundary divides the cavity into a stock fluid cell (52) and a motivating-fluid cell (56). If the movable biasing boundary is a piston (56), a link (108) joined to the piston (56) may extend outside of the unit as a means for driving the piston (56) toward the motivating fluid cell (56). Each cell communicates with a fluid circuit that includes a source line, a valve or valves and a discharge line. The controlled supply and discharge of the motivating fluid to move the movable biasing boundary creates the discharge and suction of the stock fluid respectively. A valve (76) directs the supply and discharge of the motivating fluid. Valves (22, 110) in the stock fluid circuit assist with the discharge and suction of the stock fluid from and into the stock-fluid cell to create the pumping action.
Abstract:
The invention concerns an engine method with suction-compression chamber (1) and/or expansion-exhaust chamber (4) operating by means of reciprocating pistons with an independent and twinned compression chamber (2) - the three chambers being separated with a device controlling the stroke causing, over a long period of engine rotation, said piston (15) to stop at the upper dead centre which in that position separates the combustion chamber and the expansion-exhaust chamber, also comprising a high-pressure compressed air chamber (23) and additional systems for recuperating ambient thermal energy and additional heating, capable of operating in mono-energy air plus supplementary compressed air or in bi-energy, or with conventional fuel in internal or external combustion, or by injection of a dose of compressed air thereby producing three operating modes depending on the type of use. The invention is useful for all types of engine methods.
Abstract:
A pressure multiplier (1) comprises a cylinder assembly, a command device (20; 200), and an electronic control unit (30). The electronic control unit is configured to obtain the switching signal to be provided to the command device (20; 200) from a compression curve which, knowing the pressure of the fluid entering the pressure multiplier, binds the pressure increase of the fluid exiting the pressure multiplier with the switching frequency of the piston of the cylinder assembly.
Abstract:
A pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core. Various configurations of helical bellows plungers are also disclosed.
Abstract:
A pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core. Various configurations of helical bellows plungers are also disclosed.