摘要:
A reciprocating piston engine, particularly a coolant compressor for motor vehicles, includes at least one piston movably supported in a cylinder. A pivot element in the form of a pivot ring is supported on a guide body attached to a shaft in an axially movable fashion such that the pivot element can execute a pivot motion. The pivot motion causes movement of the at least one piston. Spring forces of at least one return spring act on the pivot element in the direction of a start position in which the pivot element is pivoted at a starting pivot angle to a plane on which the rotary axis of the shaft stands upright. At least one further spring element acts on the return spring with an initial tension when the pivot element is in the start position.
摘要:
The invention relates to a reciprocating piston engine, particularly a coolant compressor for motor vehicles, comprising at least one piston movably supported in a cylinder, and comprising a pivot element (1), preferably designed as a pivot ring, supported on a guide body (5) that is attached to a shaft (3) in an axially movable fashion such that said pivot element can execute a pivot motion, causing movement of the at least one piston, wherein spring forces of at least one return spring (15) act on the pivot element (1) in the direction of a start position in which said pivot element is pivoted at a starting pivot angle (alpha start) to a plane (E) on which the rotary axis (D) of the shaft (3) stands upright. At least one further spring element (19) acts on the return spring (15) with an initial tension when the pivot element (1) is in the start position.
摘要:
A reciprocating piston machine includes a drive shaft having a central axis, a driving element rigidly connected to the drive shaft and extending essentially perpendicular to the central axis, a guide sleeve enclosing the drive shaft and axially displaceable thereon, and a spring element for applying a force to the guide sleeve and which on the one hand is supported on the guide sleeve and which on the other hand introduces forces into the drive shaft. Forces from the spring element are indirectly introduced into the drive shaft.
摘要:
A reciprocating piston machine, in particular a swash ring compressor or swash plate compressor, with pistons which are received so as to be movable in a reciprocating manner in cylinder spaces of a cylinder block with a cylinder head made from a material of lower strength such as aluminum material and which are driven by a driving mechanism which is arranged in a driving mechanism housing part made from a material of higher strength such as steel material. The driving mechanism housing part made from the material of higher strength is fastened to the cylinder block which is made from a material of lower strength such as aluminum material.
摘要:
A reciprocating piston machine is proposed, in particular for motor vehicles, comprising a drive shaft (1) having a central axis (5), a driving element (3) which is rigidly connected to the drive shaft (1) and which extends essentially perpendicular to the central axis (5), a guide sleeve (9) which encloses the drive shaft (1) and which is axially displaceable thereon, and a spring element (15) which applies a force to the guide sleeve (9) and which on the one hand is supported on the guide sleeve (9) and which on the other hand introduces forces into the drive shaft (1). The reciprocating piston machine is characterized in that the forces from the spring element (15) are indirectly introduced into the drive shaft (1).
摘要:
The proposal is for a heating/cooling device for vehicles, in particular motor vehicles with electric drive, having a refrigerant circuit, which comprises a compressor (3), a gas cooler (5), an evaporator (7) and an expansion valve arranged between the gas cooler (5) and the evaporator (7). The heating/cooling device is characterized in that the gas cooler (5) interacts with a first liquid coolant circuit (9), and the evaporator (7) interacts with a second liquid coolant circuit (11), wherein an interior heat exchanger (17) can be assigned to the first or the second liquid coolant circuit (9, 11), and wherein an external-air heat exchanger (19) can be assigned to the first or the second liquid coolant circuit (9, 11).
摘要:
A heating/cooling device (1) is proposed for vehicles, in particular motor vehicles, with a compressor (3), a refrigerant circuit (5), a gas cooler (7), an evaporator (9), and with an expansion valve (37) arranged between the gas cooler (7) and evaporator (9) in the refrigerant circuit (5). The heating/cooling device (1) is distinguished in that the gas cooler (7) or the evaporator (9) is coupled with a liquid coolant circuit (13, 23) which cooperates with an interior heat exchanger (19) or an external air heat exchanger (27), or that the gas cooler (7) and the evaporator (9) are each coupled with an its own liquid coolant circuit (13, 23), wherein one of the liquid coolant circuits (13, 23) cooperates with the interior heat exchanger (19) and the other liquid coolant circuit (23, 13) cooperates with the external air heat exchanger (27).
摘要:
A safety device limits the pressure in an axial-piston compressor with variable piston displacement. The compressor has as wobble plate or swash plate whose tilt angle can be variably controlled by the pressure differential between the high pressure in the discharge pressure zone and the pressure in the piston-drive chamber. The safety device consists of a valve arranged in a connector channel between the discharge pressure zone and the pressure zone of the piston-drive chamber. When the discharge pressure exceeds a given pressure limit, the safety device responds by allowing an increased flow of pressure medium from the discharge pressure zone to the piston-drive chamber. The influx of pressure medium into the piston-drive chamber causes a reduction of the tilt angle of the swash plate or wobble plate.