Class / Patent application number | Description | Number of patent applications / Date published |
092054000 | ROTATING CYLINDER | 12 |
20130118345 | ROTATING CYLINDER - A rotating cylinder includes a cylinder body, a piston, a piston shaft assembly, a main body and a guiding assembly. The cylinder body defines a receiving chamber. The piston, the piston shaft assembly, the main body and the guiding assembly are received in the receiving chamber. The piston shaft assembly is fixed to the piston, and defines at least one guiding groove lengthwise thereof. Each guiding groove includes a spiral portion and an extending portion. The main shaft is non-rotatably connected to the piston shaft assembly away from the piston and exposed out of the cylinder body. The guiding assembly sleeves on the piston shaft assembly and is slidably connected with the at least one guiding groove. The main shaft is driven to rotate when the guiding assembly engages the spiral portion, and move lengthwise when the guiding assembly is slidably connected with the extending portion. | 05-16-2013 |
20130205990 | PISTON MACHINE - The invention relates to a piston machine comprising two (or more) housing parts ( | 08-15-2013 |
20160153431 | HYDRAULIC PUMP AND PISTON FOR SUCH A HYDRAULIC PUMP | 06-02-2016 |
20160201461 | Piston Unit and Hydrostatic Radial-Piston Machine | 07-14-2016 |
092056000 | Plural cylinders | 8 |
20130000481 | COOLING STRUCTURE OF CYLINDER BLOCK AND SWASH PLATE TYPE LIQUID-PRESSURE APPARATUS INCLUDING SAME - The present invention provides a cooling structure of a cylinder block, the cooling structure being capable of improving a cooling performance of sliding surfaces. A cylinder block includes a plurality of cylinders, and pistons are respectively inserted into the cylinders through openings. Each of the pistons performs reciprocating sliding on a sliding surface which defines the cylinder. A plurality of cooling depressions are formed on an outer peripheral surface of the cylinder block. Each of the cooling depressions extends from a front end surface of the cylinder block on a dividing wall located between the two adjacent cylinders and is formed by reducing the thickness of the dividing wall so as to reduce a thickness of a portion between the sliding surface and the outer peripheral surface. | 01-03-2013 |
092057000 | Axes of cylinders parallel to axis of rotation | 7 |
20090199706 | Axial Piston Machine - An axial piston machine includes a housing and pistons situated in cylinder bores of a rotatable cylinder member, which pistons are supported on a pivoting cradle, the pivoting cradle being supported via at least one pivoting bearing having a bearing gap that has fluid acting on it. The axial piston machine further includes a control and/or regulating device is provided for the control and/or regulation of the fluid pressure in the bearing gap. | 08-13-2009 |
20110094375 | Axial piston machine, recoil plate and method of manufacturing a recoil plate - The invention relates to an axial piston machine, in addition to a swash-plate for said machine and a method for producing a swash-plate. The swash-plate ( | 04-28-2011 |
20130042750 | Piston-Type Compressor - Provided is a piston type compressor which can enhance cooling of internal parts housed in a crank chamber, while effectively reducing an outflow of oil to the outside of a compressor by effectively performing a centrifugal separating operation due to the rotation of a shaft. The compressor includes: a first suction path which directly introduces a working fluid flowed from a suction port | 02-21-2013 |
20130118346 | ROTARY AXIAL PISTON PUMP - RAPPs comprise a housing, a swash plate with an inclined surface, and a rotor assembly positioned adjacent the swash plate. The swash plate and/or the inclined surface are ceramic. The rotor assembly comprises a rotor-drum having at least one cylinder bore having a piston disposed therein, wherein the piston has a ball-shaped end. A slipper is interposed between the swash plate and the rotor-drum, and includes a socket joint for accommodating the piston ball-shaped end therein. A plastic material may be disposed within the socket joint. The slipper has a ceramic interface surface in contact with the inclined surface. A stator plate is positioned in the housing, and a rotor plate is interposed between the stator plate and the rotor-drum. The stator plate has a ceramic interface surface in contact with the rotor plate. The rotor plate has a ceramic interface surface in contact with the stator plate. | 05-16-2013 |
20130174724 | SWASH PLATE FOR SWASH PLATE COMPRESSOR AND SWASH PLATE COMPRESSOR - The present invention provides a swash plate, for a swash plate compressor, which is excellent in a resistance to the occurrence of seizing in a condition where an extreme pressure is generated owing to local contact between the swash plate and a shoe which slides thereon and in a condition where lubricating oil is depleted, capable of preventing cavitation-caused erosion of a resin film when the swash plate is operated at a high surface pressure and a high speed in the presence of the lubricating oil and the swash plate compressor having the swash plate. A swash plate ( | 07-11-2013 |
20140360352 | Hydrostatic Axial Piston Machine and Retention Plate - An axial piston machine has a cylinder connected to a shaft and a multiplicity of pistons guided by the cylinder and supported by sliding shoes on a swashplate. Each sliding shoe has a sliding shoe collar and a sliding shoe head, and is held in place in a direction of a contact position by an annular retraction plate. An end face segment of the retraction plate engages an annular surface between the sliding shoe collar and the sliding shoe head, and each sliding shoe collar passes through an associated aperture in the retraction plate and connects to a corresponding piston. A surround is formed in the retraction plates at the head of each sliding shoe, and is configured to fit around an axial segment of a circumference of the sliding shoe head in a direction toward the swashplate. | 12-11-2014 |
20150128797 | Radial Piston Engine with Brake - A radial piston motor comprises cylinder-piston units arranged in a star shape, a housing, an output shaft, an inner axial housing collar, an outer axial shaft collar, an output flange, an output shaft, and a brake positioned at least in certain sections between the inner axial housing collar and the outer axial shaft collar. The output flange is attached to the output shaft. The output flange is attached to the shaft collar radially outside the shaft collar. | 05-14-2015 |