Abstract: A water purifier having a small size and compact internal structure and enabling a water discharge part through which water is extracted to be rotation-operated, and a control method thereof.

Abstract: A rotary piston compressor comprises a cylinder block (100), an eccentric rotor group (200) being fitted in the chamber of the cylinder block, a shaft (2) and a separating means (40). The eccentric rotor group (200) comprises a cylindrical rotor (4) provided on the shaft (2) and rotatable therewith, and a collar (3) rotationally provided on the cylindrical rotor (4). The separating means (40) is used for separating the axially extended sealed chamber, which is formed between the outer peripheral surface of the eccentric rotor group (200) and the inner wall of the cylinder block (100), into an induction chamber (70) and an exhaustion chamber (71).

Abstract: A fluid compressing system includes: a rotary compressor including a housing defining an oil chamber and an oil-releasing port in fluid communication with the oil chamber; a discharging pipeline connected to the housing for passage of a high pressurized fluid therethrough; an oil-adjusting tank connected to the discharging pipeline and the oil-releasing port for receiving lubricant oil from the oil chamber so as to alleviate oil swirling in the oil chamber; an oil filter connected to the discharging pipeline for separating the lubricant oil from the high pressurized fluid; and a first capillary connected to the oil filter and the housing for recycling filtered lubricant oil from the oil filter into the oil chamber.

Abstract: A rotary compressor includes a compression mechanism in which a piston is disposed inside a cylinder chamber of a cylinder. The cylinder and the piston eccentrically rotate relative to each other. The cylinder chamber is sectioned into a high pressure chamber and a low pressure chamber in order to prevent production of vibration and noises due to pressure pulsation caused in a suction process. A low pressure space communicating with a suction side of the compression mechanism and a high pressure space communicating with a discharge side of the compression mechanism are formed in the casing. A suction pipe communicating with the high pressure space and a discharge pipe communicating with the high pressure space are disposed in the casing.

Abstract: A rotary fluid machine is provided with a cylinder having an annular cylinder chamber, an annular piston and a blade that form a rotation mechanism. The piston is disposed in the cylinder chamber to be eccentric to the cylinder and divides the cylinder chamber into an outer working chamber and an inner working chamber. The blade is arranged in the cylinder chamber to divide each of the working chambers into a high pressure region and a low pressure region. The cylinder and the piston make relative rotations. A width of the cylinder chamber is varied along a circumference of the cylinder chamber such that a gap between a wall surface of the cylinder and a wall surface of the piston is kept to a predetermined value during the rotations. Further, a width of the piston is varied along a circumference of the piston such that the gap between the wall surface of the cylinder and the wall surface of the piston is kept to a predetermined value during the rotations.

Abstract: A rotary displacement machine includes a casing having a circular cylindrical internal surface and a rotor disposed in the chamber mounted to orbit about a chamber axis, with the rotor having a circular cylindrical external surface. A vane member is mounted on the casing and pivotable about a pivot axis parallel to the chamber axis. The vane member has a passage way communicating between the exterior of the casing and the operating chamber. A linkage connects the vane member to the rotor so as to keep a tip face of the vane member in sealing contact with an external surface of the rotor.

Abstract: A rotary piston displacement device having an impeller housng with an approximately cylindrical receiving chamber in which an approximately cylindrical piston, which has a smaller outside diameter than and which is mounted eccentrically relative to, the receiving chamber, is provided mounted on an eccentric drive. The rotary piston forms an approximately sickle-shaped interspace between its outer wall and the inner wall of the receiving chamber. This interspace is divided into a pressure chamber and a suction chamber by a separating crosspiece that is placed between an inlet opening that is located inside the housing and an outlet opening. The outer and inner fixing locations of the separating crosspiece, which is connected to the housing on the one side and the piston on the other side, are offset with respect to one another in the peripheral direction of the rotary piston.

Abstract: A rotary piston displacement device having an impeller housng with an approximately cylindrical receiving chamber in which an approximately cylindrical piston, which has a smaller outside diameter than and which is mounted eccentrically relative to, the receiving chamber, is provided mounted on an eccentric drive. The rotary piston forms an approximately sickle-shaped interspace between its outer wall and the inner wall of the receiving chamber. This interspace is divided into a pressure chamber and a suction chamber by a separating crosspiece that is placed between an inlet opening that is located inside the housing and an outlet opening. The outer and inner fixing locations of the separating crosspiece, which is connected to the housing on the one side and the piston on the other side, are offset with respect to one another in the peripheral direction of the rotary piston.

Abstract: The present invention relates generally to fluid displacement apparatuses and methods. The inventive apparatus comprises: a housing having an interior space; a crankpin positionable in the interior space; and a plurality of articulated displacement members positionable in the interior space such that the articulated displacement members extend from the crankpin and define in the interior space a plurality of displacement zones. The inventive apparatus can be embodied as a pump, a compressor, a fluid flow meter, a stirling-type engine, a relay system, an actuator, and many other devices.

Abstract: A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an annular piston concentric with and fitted over the rotor making sliding sealing engagement with both end plates. An abutment centered preferably between 10:00 and 10:30 o'clock on the stator seals the space between the cylinder and piston from endplate to endplate and forms the counterclockwise end of a combustion-expansion chamber. A second abutment, centered preferably between 1:30 and 2:00 o'clock, seals the space between the cylinder and piston from endplate to endplate and forms the clockwise end of the combustion-expansion chamber. The combustion chamber centered at 12:00 o'clock comprises a shallow arcuate cavity adjacent the path of the piston and opening into the cylinder.

Abstract: The invention relates to a roto-reciprocating engine combining the reciprocating principle with rotary movement by using an orbiting non-rotating piston and sliding chamber seals to form positive displacement chambers distributed radially around the crankshaft.