Abrégé

The invention relates to a compressor, in particular a compressor for the air-conditioning system of a motor vehicle, having a housing and having a compressor unit, which is substantially arranged in the housing, for sucking in and compressing a refrigerant in at least one compression volume, in particular cylinder, and having a suction gas volume, in particular suction gas chamber (5), and/or a high-pressure volume, in particular high-pressure chamber (6), which has a dividing device (16) which divides the suction gas volume (5) and/or the high-pressure volume (6) into at least two partial volumes which are fluidically connected to one another.

Classes IPC  ?

• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F04B 27/10 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles

Abrégé

An axial piston compressor, particularly a compressor for air conditioning systems of motor vehicles, having at least one piston and in particular an annular captive C-washer (2), which can be adjusted with regard to the inclination thereof to a drive shaft (1), is rotationally driven by the drive shaft (1), and which is connected in an articulated manner to at least one supporting element (5) that rotates with the drive shaft (1), wherein the piston(s) each has/have a joint assembly against which the captive C-washer (2) is in sliding engagement, wherein the U/V ratio between the distance U of the drive shaft center axis from the divided circle radius of the shaft center axis (axes) and the distance V of the drive shaft center axis from the center of the pivoted joint, which results from the linkage of the supporting element (5) to the captive C-washer (2), is always smaller than 1 regardless of the size of the angle of deflection of the captive C-washer (2).

Classes IPC  ?

• F04B 27/10 - Pompes multicylindres spécialement adaptées aux fluides compressibles et caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles

Abrégé

Disclosed is a method for regulating the coolant mass flow rate of a compressor, especially an axial piston compressor, particularly for motor vehicle air conditioners, comprising a drive shaft (2) and a swash plate (1) whose inclination relative to the drive shaft is adjustable and which is disposed in a gear unit compartment of the compressor, said gear unit compartment being essentially defined by a compressor housing. The swash plate (1) defines the piston stroke of the compressor by means of the angle of deflection thereof relative to the drive shaft (2). An approximate equilibrium between a moment MSW generated by rotationally moved masses and a moment Mk,ges generated by translationally moved masses (MSW = Mk,ges) is created for at least one angle of deflection of the swash plate (1), and/or moment Msw is made to exceed moment Mk,ges (MSW ≥ Mk,ges) in at least one range of the possible angles of deflection of the swash plate. The product of the compressor speed n, the suction gas density p, and the piston stroke s is automatically kept approximately constant for different compressor speeds n, at least in some ranges, especially for compressor speeds n ranging from 600 to 9000 rpm, particularly from 2500 to 7000 rpm, while a pressure pc prevailing in the gear unit compartment is also kept approximately constant. Also disclosed is a compressor suitable for carrying out the inventive method.

Classes IPC  ?

• F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres

Abrégé

A method for controlling the refrigerant mass flow of a compressor, in particular of an axial piston compressor, in particular also for motor vehicle air conditioning systems, in particular also for CO2 as refrigerant, which has a drive shaft and a pivoting plate which can be adjusted with regard to its inclination to the drive shaft and which is arranged in a motor chamber of the compressor essentially defined by a housing of said compressor and which by its angle of deflection relative to the drive shaft defines the piston stroke of the compressor, wherein approximately one balance of moments is obtained between a moment Msw produced by masses moved in rotation and a moment Mk,ges produced by masses moved in translation for at least one angle of deflection αgI of the pivoting plate, and wherein the product of the compressor speed, of the suction gas density p, and of the piston stroke s for different compressor speeds n is automatically maintained more or less constant, at least locally, in particular for compressor speeds n between 600 and 9000 r.p.m., in particular for compressor speeds between 2500 and 7000 r.p.m., while a pressure pc occurring in the motor chamber is likewise maintained approximately constant, as well as a compressor which is suitable for performing the method.

Classes IPC  ?

• F04B 27/18 - Commande pour pompes à cylindres immobiles en modifiant les positions relatives d'un plateau en biais et d'un bloc-cylindres