Abstract: A piston for a compressor has a first end subjectable to pressure and intended to be directed toward a first volume of the compressor, and a second end subjectable to pressure located opposite the first and intended to be directed toward a second volume of the compressor. The first and the second volume are interconnected via a connecting line. The first end is in the form of a full-surface-area full side. The second end is in the form of an annular, stepped side. On the second end, the piston carries a sealing arrangement, which seals the first volume with respect to the second. An annular seal body, in the form of a sealing sleeve, is retained in a pressure-tight manner, via a profile base, on the stepped side, between a step-side piston ring arranged on the second end and a compression-volume-side retaining ring.

Abstract: An air dryer housing includes a desiccant container fillable with desiccant and includes a port device for a compressed-air supply with a compressed-air flow. The port device is configured for connecting the air dryer housing to the compressed-air supply. The port device is connectable pressure-tight to the desiccant container. The port device has, at the desiccant side, a valve element which projects into the desiccant container and in which a valve piston is movable. The valve element and the valve piston form a ventilation valve unit that is configured as a pneumatic relay valve. The port device is configured to be connectable to the compressed-air supply system, and the desiccant container can be passed through by a compressed-air flow in a first direction when the valve piston is in a first position and in a second direction when the valve piston is in a second position.

Abstract: A plug-in connection arrangement for a component includes a first portion having a first groove contour in a first annular groove arranged in the first portion, and a second portion having a second groove contour in a second annular groove arranged in the second portion. Via a resilient connection arrangement element arranged between the first portion and the second portion in the second annular groove, the first portion and the second portion can have a retention position relative to each other in a first position and which can be moved in an axial direction into a second position which is provided for operation. The second position is a sealing engagement position.

Abstract: A compressor for a compressed-air feed of a compressed-air supply installation, for operating a pneumatic installation, includes: a first compression space; a second compression space; an air feed port; a compressed-air outlet; and a piston having a first face side, which is subjectable to pressure and which is directed toward the first compression space, and a second face side, situated opposite the first face side, which is subjectable to pressure and which is directed toward the second compression space, the first compression space being delimited by the first face side and the second compression space being delimited by the second face side. The first face side includes a full side and the second face side includes a step side. The piston is attached via a connecting rod to a drive. The first compression space and the second compression space are connected to one another via a connecting line.

Abstract: A double-piston compressor of a compressed air supply device includes a first pressure stage and a second pressure stage, each having a cylinder with a piston guided therein in an axially movable manner. The piston of the cylinder of the first pressure stage and the cylinder of the second pressure stage are rigidly connected to one another via a piston rod and are in driving connection with the drive shaft via a slotted guide. The slotted guide comprises a recess which is formed in the piston rod, provided with a slotted guide track and oriented perpendicularly to an axis of rotation of the drive shaft with its cross-sectional plane. The slotted guide comprises a drive roller which is engaged with the recess and fastened to the drive shaft in an axially parallel, eccentric, and also rotatable manner with respect to the axis of rotation of the drive shaft.

Abstract: A compressor assembly for a compressed-air feed of a compressed-air supply system for operating a pneumatic system includes a compressor having a con-rod, a con-rod bearing, and a cylinder. The con-rod has a compressor piston. The compressor assembly further includes a drive having a drive shaft and a drive housing. The drive shaft is mounted in a drive bearing that is disposed within the drive housing. The drive bearing and the con-rod bearing partially or completely overlap one another in the axial direction, or the axial central plane of the drive bearing and the axial central plane of the con-rod bearing lie in one bearing plane. A crank disk is fixedly connected to an end portion of the drive shaft, the crank disk having a con-rod receptacle portion that is disposed so as to be eccentric to the drive shaft, the crank disk being rotatably connected to the con-rod.

Abstract: A connection arrangement includes a first connection body and a second connection body for forming a pneumatic connection along a connection axis, and a sealing element configured to seal a sealing gap which surrounds the pneumatic connection and which has a longitudinal dimension which extends parallel to the connection axis. A pneumatic flow is able to travel through the first and second connection bodies along the connection axis. The first connection body has a through-hole having a cross section transverse to the connection axis. The second connection body is arranged at least partially in the through-hole. An at least partially circumferential first recess transverse to the connection axis is formed on an outer face of the first connection body extending parallel to the connection axis for receiving the sealing element.

Abstract: A reciprocating-piston machine includes at least one first cylinder and at least one first piston assigned to the first cylinder as well as at least one second cylinder and at least one second piston assigned to the second cylinder. During operation, the first piston and the second piston are deflected in a respective cylinder displacement chamber of the respective first cylinder and the second cylinder. The reciprocating-piston machine further includes a crankshaft which, during operation, can be driven and which has an eccentric crankshaft journal and a drive shaft coupling designed for the coupling of a drive shaft of a drive motor for driving the crankshaft. Additionally, the reciprocating-piston machine includes a first connecting rod configured to deflect the first piston, a second connecting rod configured to deflect the second piston, and a bearing pin about which the first and second connecting rod are rotationally movable.

Abstract: A reciprocating piston machine includes a first cylinder and a first piston assigned to the first cylinder and a second piston assigned to the first cylinder or a second cylinder. The reciprocating piston machine further includes a crankshaft having an eccentric crankshaft journal and a drive shaft coupling configured for coupling a drive shaft of a drive motor for driving the crankshaft, a first connecting rod configured to deflect the first piston and configured to be moved by the eccentric crankshaft journal, and a second connecting rod configured to deflect the second piston and configured to be moved by a bearing pin. The reciprocating piston machine additionally includes at least one of a first elastomer element arranged between the bearing pin and the first connecting rod and a second elastomer element arranged between the bearing pin and the second connecting rod.

Abstract: A compressor for a compressed-air feed of a compressed-air supply installation, for operating a pneumatic installation, includes: a first compression space; a second compression space; an air feed port; a compressed-air outlet; and a piston having a first face side, which is subjectable to pressure and which is directed toward the first compression space, and a second face side, situated opposite the first face side, which is subjectable to pressure and which is directed toward the second compression space, the first compression space being delimited by the first face side and the second compression space being delimited by the second face side. The first face side includes a full side and the second face side includes a step side. The piston is attached via a connecting rod to a drive. The first compression space and the second compression space are connected to one another via a connecting line.

Abstract: A compressor assembly for a compressed-air feed of a compressed-air supply system for operating a pneumatic system includes a compressor having a con-rod, a con-rod bearing, and a cylinder. The con-rod has a compressor piston. The compressor assembly further includes a drive having a drive shaft and a drive housing. The drive shaft is mounted in a drive bearing that is disposed within the drive housing. The drive bearing and the con-rod bearing partially or completely overlap one another in the axial direction, or the axial central plane of the drive bearing and the axial central plane of the con-rod bearing lie in one bearing plane. A crank disk is fixedly connected to an end portion of the drive shaft, the crank disk having a con-rod receptacle portion that is disposed so as to be eccentric to the drive shaft, the crank disk being rotatably connected to the con-rod.

Abstract: A reciprocating piston machine includes a first cylinder and a first piston assigned to the first cylinder and a second piston assigned to the first cylinder or a second cylinder. The reciprocating piston machine further includes a crankshaft having an eccentric crankshaft journal and a drive shaft coupling configured for coupling a drive shaft of a drive motor for driving the crankshaft, a first connecting rod configured to deflect the first piston and configured to be moved by the eccentric crankshaft journal, and a second connecting rod configured to deflect the second piston and configured to be moved by a bearing pin. The reciprocating piston machine additionally includes at least one of a first elastomer element arranged between the bearing pin and the first connecting rod and a second elastomer element arranged between the bearing pin and the second connecting rod.

Abstract: A reciprocating-piston machine includes at least one first cylinder and at least one first piston assigned to the first cylinder as well as at least one second cylinder and at least one second piston assigned to the second cylinder. During operation, the first piston and the second piston are deflected in a respective cylinder displacement chamber of the respective first cylinder and the second cylinder. The reciprocating-piston machine further includes a crankshaft which, during operation, can be driven and which has an eccentric crankshaft journal and a drive shaft coupling designed for the coupling of a drive shaft of a drive motor for driving the crankshaft. Additionally, the reciprocating-piston machine includes a first connecting rod configured to deflect the first piston, a second connecting rod configured to deflect the second piston, and a bearing pin about which the first and second connecting rod are rotationally movable.

Abstract: A double-piston compressor of a compressed air supply device includes a first pressure stage and a second pressure stage, each having a cylinder with a piston guided therein in an axially movable manner. The piston of the cylinder of the first pressure stage and the cylinder of the second pressure stage are rigidly connected to one another via a piston rod and are in driving connection with the drive shaft via a slotted guide. The slotted guide comprises a recess which is formed in the piston rod, provided with a slotted guide track and oriented perpendicularly to an axis of rotation of the drive shaft with its cross-sectional plane. The slotted guide comprises a drive roller which is engaged with the recess and fastened to the drive shaft in an axially parallel, eccentric, and also rotatable manner with respect to the axis of rotation of the drive shaft.

Abstract: A plug-in connection arrangement for a component includes a first portion having a first groove contour in a first annular groove arranged in the first portion, and a second portion having a second groove contour in a second annular groove arranged in the second portion. Via a resilient connection arrangement element arranged between the first portion and the second portion in the second annular groove, the first portion and the second portion can have a retention position relative to each other in a first position and which can be moved in an axial direction into a second position which is provided for operation. The second position is a sealing engagement position.

Abstract: A compressed air supply unit for operating a pneumatic unit by means of a compressed air flow, in particular of an air suspension unit of a vehicle, comprises an air dryer arrangement in a main pneumatic line that pneumatically links a compressed air feed line from an air compressor and a compressed air connection to the pneumatic unit. A valve arrangement is pneumatically connected to the main pneumatic line for controlling the compressed air flow. The air dryer arrangement has a drying container having a container outer wall. A partition along a length of the drying container divides an internal space delimited by the container outer wall into first and second chambers delimited by the partition and the container outer wall. The partition adjoins the container outer wall along the length of the drying container, and the first and second chambers are adjacent to one another along that length.

Abstract: A connection arrangement includes a first connection body and a second connection body for forming a pneumatic connection along a connection axis, and a sealing element configured to seal a sealing gap which surrounds the pneumatic connection and which has a longitudinal dimension which extends parallel to the connection axis. A pneumatic flow is able to travel through the first and second connection bodies along the connection axis. The first connection body has a through-hole having a cross section transverse to the connection axis. The second connection body is arranged at least partially in the through-hole. An at least partially circumferential first recess transverse to the connection axis is formed on an outer face of the first connection body extending parallel to the connection axis for receiving the sealing element.

Abstract: A compressed air supply unit for operating a pneumatic unit by means of a compressed air flow, in particular of an air suspension unit of a vehicle, comprises an air dryer arrangement in a main pneumatic line that pneumatically links a compressed air feed line from an air compressor and a compressed air connection to the pneumatic unit. A valve arrangement is pneumatically connected to the main pneumatic line for controlling the compressed air flow. The air dryer arrangement has a drying container having a container outer wall. A partition along a length of the drying container divides an internal space delimited by the container outer wall into first and second chambers delimited by the partition and the container outer wall. The partition adjoins the container outer wall along the length of the drying container, and the first and second chambers are adjacent to one another along that length.