Rotary expansible chamber devices inventions 05/06

20060104845 - Variable capacity rotary compressor: A variable capacity rotary compressor capable of equalizing an interior pressure (i.e., discharge pressure) of a hermetically sealed container with an interior pressure of a compression chamber where an idling operation is performed, resulting in a reduction of rotation resistance of a rotary shaft. The variable capacity rotary compressor includes...

20060104846 - Scroll compressor: An orbiting scroll compressor includes: a frame fixed in a casing; a driving motor fixed in the casing and supplying a driving force; a fixed scroll fixed in the casing; an orbiting scroll forming a first compression space as its one side is interlocked with the fixed scroll, and orbiting...

20060104847 - Vane-type hydraulic motor: A vane-type hydraulic motor includes a rotor (30) having a main shaft (70) and a plurality of vanes (35), a cam casing (10) having a chamber (11) for rotatably housing the rotor (30), a first port (13) and a second port (15) for supplying a working fluid into the chamber...

20060099097 - Apparatus for varying capacity of scroll compressor: The present invention discloses an apparatus for varying a capacity of a scroll compressor. The apparatus comprises: a pressure control mechanism for controlling a pressure applied to the back of a orbiting scroll orbiting engaged with a fixed scroll; and a sealing varying mechanism for changing a sealing region of...

20060099098 - Discharge valve system of scroll compressor: A discharge valve system of a scroll compressor comprises: a fixed scroll having a discharge hole and discharge bypass holes; a discharge valve assembly mounted at the fixed scroll, for opening and closing the discharge hole by a pressure difference; and an integral bypass valve assembly mounted at the fixed...

20060099096 - Scroll pump system: The present invention provides a scroll pump device comprising external and internal scroll members, and wherein the scroll pump device is separated into inner and outer zones. The flow streams in the two zones are kept separate, and each stream may have different chemical compositions and flow rates. The scroll...

20060099099 - Vane pump including rotor having eccentric gravity center: A vane pump includes a casing having a cylindrical inner bore and a rotor disposed in the inner bore with an eccentric relation thereto, forming a circular pump chamber between the rotor and the inner bore. The circular pump chamber is divided by vanes held in the rotor into pump...

20060099100 - Cam ring bearing for fuel delivery system: A bearing assembly is provided for a fuel delivery system that includes a pump (10) having a housing that rotatably receives a rotor (20) carrying vanes (26) thereon, a cam ring (70) received between the housing and rotor (20), and a support member of yoke (50) encompassing the cam ring...

20060099101 - Friction engagement device of automatic transmission: In a friction engagement device of an automatic transmission, a brake piston is actuated by an oil pressure and a friction disc is pressed by the brake piston. The friction engagement device of an automatic transmission includes an oil pressure chamber extending in an annular shape and a main oil...

20060099102 - Vane pump having vanes slanted relative to rotational axis: A vane pump is composed of a casing having a cylindrical inner bore and a rotor disposed in the inner bore with an eccentric relation to the inner bore. A circular pump chamber formed between the rotor and the inner bore is divided by vanes disposed in the rotor into...

20060093503 - Variable capacity rotary compressor: A variable capacity rotary compressor having a slot defined between eccentric bushes, a latch pin fitted to a rotary shaft so as to be latched to the slot, and a restraint unit for restraining the eccentric bushes upon rotation of the rotary shaft. The restraint unit includes a restraint member...

20060093504 - Apparatus for varying capacity of scroll compressor: An apparatus for varying the capacity of a scroll compressor is disclosed. The apparatus for varying the capacity of a scroll compressor includes a bypass passage for connecting a compression pocket under intermediate pressure among compression pockets formed by a wrap of a fixed scroll and a wrap of a...

20060093505 - Positioning structure and method for assembling compressor: A positioning structure and a method are used to assemble a scroll compressor for outputting high-pressure fluid. The casing, supporting stage and the upper scroll are arranged and positioned by using pin engaged with pin hole. The lower scroll is provided on a baffle face of the supporting stage. A...

20060093506 - Scroll compressor: A scroll compressor includes an orbiting scroll orbiting and having a boss in which an eccentric portion of a rotating shaft is inserted, a main frame having a pocket in which a boss of the orbiting scroll is inserted and a thrust bearing surface to which a thrust bearing surface...

20060093507 - Rotary pump for braking device: The curvature of a circular arc constituted by a side of a suction groove is made larger than that of a circular arc constituted by a side of a discharge groove. Thus, when the suction groove and the discharge groove are viewed in the axial direction of a drive shaft,...