Abstract: A linear compressor for a domestic appliance has a piston that can move in the longitudinal direction of a cylinder between top and bottom dead center positions. A piston outer surface can be contactlessly supported against a corresponding cylinder inner surface owing to the formation of a gas thrust bearing in the radial direction of the cylinder. The piston outer surface and the cylinder inner surface each have a martensitic structure in specified regions. There is also provided a domestic refrigeration appliance with a refrigerant circuit and a compressor.

Abstract: An aerostatic bearing and a linear compressor that includes the aerostatic bearing. In an exemplary embodiment, the aerostatic bearing includes a guide element including holes, and a body structured to move along a surface of the guide element. The holes may include a first section close to the body, of which at least one part area features a cross-sectional surface substantially constant over its entire length which is smaller towards the body than another cross-sectional surface of an area away from the body. A method for producing a hole in an element, using a laser beam, for producing the aerostatic bearing is also disclosed.

Abstract: A linear compressor comprising a piston housing; a compressor piston configured for reciprocatory motion with the piston housing along an axis thereof, whereby the compressor piston is mounted in the piston housing a housing wall having openings formed therein with a gaseous fluid flowing through the openings; and a discharge device for fluid condensate.

Abstract: A linear compressor has a rigid frame (11, 12, 13), on which an oscillating body (16) is held via at least one spring (9) so as to be able to effect reciprocating motion and at least one electromagnet (14, 15) is mounted for driving the reciprocating motion of the oscillating body (16), and having a pump chamber (13) forming part of the frame, in which pump chamber a piston, connected to the oscillating body (16), may effect reciprocating motion. The frame (11, 12, 13) is connected in an oscillatory manner to a fixing member (1) for fixing the linear compressor to a support by a diaphragm spring (5, 7, 9) oriented transversely of the direction of movement of the oscillating body.

Abstract: A linear compressor with a pumping chamber, in which a piston moves back and forth, and a frame, fixed to the pumping chamber, on which an oscillating body, connected to the piston, is fixed by at least one spring such as to move back and forth and provided with at least one electromagnet, for driving the back and forth movement of the oscillating body. A one-piece spring connects the oscillating body to the frame and the frame to a fixing body, for fixing the linear compressor to a support.

Abstract: A modular refrigerator, having a first planar thermally-insulated element, a second planar thermally-insulated element and further planar thermally-insulated elements, connected together and which can be subsequently detached, forming a housing of the refrigerator when assembled, a refrigerant circuit, with an evaporator, a condenser and a compressor, a first electrical line, arranged in the first planar element, a second electrical line, arranged in the second planar thermally-insulated element and an electrical contact/counter-contact device, by means of which both electrical lines may be electrically connected. The contact device is integrated in the first planar thermally-insulated element and the counter-contact device is integrated in the second planar thermally-insulated element such that contact device is automatically electrically connected to the electrical counter-contact during the mechanical connection of the first and second planar element.

Abstract: An aerostatic bearing and a linear compressor that includes the aerostatic bearing. In an exemplary embodiment, the aerostatic bearing includes a guide element including holes, and a body structured to move along a surface of the guide element. The holes may include a first section close to the body, of which at least one part area features a cross-sectional surface substantially constant over its entire length which is smaller towards the body than another cross-sectional surface of an area away from the body. A method for producing a hole in an element, using a laser beam, for producing the aerostatic bearing is also disclosed.

Abstract: A linear compressor includes a piston housing having a plurality of gas permeable openings therein and a compressor piston configured for reciprocatory motion therein along an axis, the compressor piston being supported in the piston housing by gas flowing through the openings and wherein the housing wall is porous.

Abstract: A linear compressor having a piston housing and a compressor piston configured for reciprocating movement therein along an axis, the linear compressor having means for guiding the compressor piston in a direction generally perpendicular to the axis and means for buffering kinetic energy associated with the reciprocating movement of the compressor piston. The linear compressor includes an elastic element made from composite material operatively associated with at least one of the means for guiding and the means for buffering.

Abstract: A linear compressor comprising a piston housing; a compressor piston configured for reciprocatory motion with the piston housing along an axis thereof, whereby the compressor piston is mounted in the piston housing a housing wall having openings formed therein with a gaseous fluid flowing through the openings; and a discharge device for fluid condensate.

Abstract: A linear compressor including a piston housing, a compressor piston movable in a reciprocating manner along an axis within the piston housing, a drive mechanism for driving the reciprocating movement, a linkage for connecting the compressor piston to the drive mechanism, and a helical spring operable within the linkage.

Abstract: A refrigeration appliance, in particular at least one of a refrigerator, freezer and an air conditioning unit, includes a cooling chamber; a linear compressor having a piston housing; a compressor piston disposed within the piston housing and configured for reciprocatory motion along an axis within the piston housing; and buffer means for storing kinetic energy associated with the motion of the compressor piston, wherein the buffer means is configured to store the kinetic energy of the compressor piston in an interim manner by compression of a gaseous fluid during reciprocatory motion of the compressor piston.

Abstract: A gas-pressure bearing including a mounted body, a cavity accommodating the mounted body, and a bearing bush surrounding the cavity. The bearing bush includes a wall, a plurality of supply passages formed in the wall and configured such that compressed gas can be externally applied. The bearing bush includes a plurality of elements joined together, and at least some of the plurality of supply passages are formed by grooves in at least one surface of mutually facing surfaces of adjacent elements of the plurality of elements.

Abstract: A gas thrust bearing including a bearing bush and a housing accommodating the bearing bush. The bearing bush includes a bush body defining a longitudinal axis. The bush body includes a plurality of recesses formed on an outer surface of the bush body, and a plurality of capillary holes extending from a floor of each recess of the plurality of recesses through the bush body to an inner surface of the bush body. A cross section of the bush body transverse to the longitudinal axis, through each of the plurality of capillary holes, has a local wall thickness that is greater than a wall thickness in an immediate environment of the capillary hole.

Abstract: A gas thrust bearing includes a cavity, a body moveable in the cavity, and a bearing bush surrounding the cavity and the moveable body. The bearing bush includes a wall defining an inner chamber, and a plurality of supply holes in the wall and configured such that compressed gas applied on an outer side of the bearing bush forms a gas cushion in the inner chamber to support the movable body. The body includes a material having a coefficient of thermal expansion that is different than a coefficient of thermal expansion of a material of the bearing bush.

Abstract: A compressor includes a cylinder and a piston moveable in an oscillating manner in the cylinder and having transverse play in relation to a movement direction. An end face of the piston delimits a compression chamber in the cylinder. A diameter of the piston reduces toward the end face.

Abstract: A compressor including a cylinder, the cylinder delimiting a compressor chamber having a circular cross-section and the cylinder having a longitudinal axis and including a front wall, the front wall of the cylinder having inlet and outlet openings for passage therethrough of a medium to be compressed; and a reciprocating piston disposed in the compressor chamber, the reciprocating piston being reciprocable within the compressor chamber in a movement that includes a dead center position and having a pair of opposed ends with one end being more proximate to the front wall of the cylinder than the other opposed end and the reciprocating piston having an expulsion projection on its one end, the expulsion projection entering the outlet opening in a dead center position of the reciprocating piston, the longitudinal axis of the cylinder extending through the outlet opening.

Abstract: A compressor includes a working chamber in which a piston for compressing a gas can be displaced, a piston disposed in the working chamber, an inlet connection communicated with the working chamber, the inlet connection guiding a gas to the working chamber; an outlet connection communicated with the working chamber, the piston being displaceable within the working chamber to displace gas from working chamber via the outlet connection; a plurality of openings in a wall of the working chamber, the openings being communicated with the outlet connection for permitting gas flow from the outlet connection back to the working chamber, the openings being respectively covered and uncovered by the piston as the piston moves within the working chamber; and a particle filter arranged in a flow path of the gas between the inlet connection and the outlet connection.

Abstract: A drive unit for a linear compressor having a frame and a body configured for reciprocating movement connected to the frame by at least one diaphragm spring and means for guiding the body to allow linear reciprocating movement with respect to the frame, the drive unit including a coil spring for action on the reciprocating body and the frame, the coil spring being configured for extension and compression in a direction of movement.

Abstract: A modular refrigerator, comprising a first planar thermally-insulated element, a second planar thermally-insulated element and further planar thermally-insulated elements, connected together and which can be subsequently detached, forming a housing of the refrigerator when assembled, a refrigerant circuit, with an evaporator, a condenser and a compressor, a first electrical line, arranged in the first planar element, a second electrical line, arranged in the second planar thermally-insulated element and an electrical contact/counter-contact device, by means of which both electrical lines may be electrically connected. The contact device is integrated in the first planar thermally-insulated element and the counter-contact device is integrated in the second planar thermally-insulated element such that contact device is automatically electrically connected to the electrical counter-contact during the mechanical connection of the first and second planar element.