摘要:
An adjustment device for adjusting a relative rotational angle position of two shafts (particularly a cam shaft and a crank shaft of an internal combustion engine) that has an adjusting gear which is designed as triple shaft gear and has a drive part connected to a first shaft (crank shaft), a driven part connected to a second shaft (cam shaft), and an adjustment shaft connected to a servomotor shaft of an electric servomotor in a rotationally fixed manner. In order to implement a wide temperature range for the operation of the adjustment device, a temperature sensor is arranged in the servomotor. In a method for operating an adjustment device or an actuator, the current of the servomotor or the actuator is controlled depending on the temperature that was determined earlier.
摘要:
A compressor, in particular for the air conditioning system of an automobile, with a housing (1) and a compressor unit (2) accommodated in the housing (1) for taking in and compressing a refrigerant, wherein the compressor unit (2) comprises pistons (7) reciprocating in a cylinder block (6) and a drive disk—swash plate or pivot disk (8)—that drives the pistons (7), is characterized for increasing efficiency in that the drive disk (8) is supported such that a center line (9) of the bearing mount (pivoting or bearing axis) forms a tangent to a reference circle (10) defining the stroke, so that an angle of inclination (11) of the drive disk (8) is variable, without displacing the dead center above the stroke position. Furthermore, for increasing efficiency, the compressor is characterized in that the drive disk is supported such that the center line of the bearing mount (pivoting or bearing axis) forms a tangent to the reference circle defining the stroke, so that the angle of inclination of the drive disk is variable, without displacing the dead center above the stroke position. Furthermore, for increasing efficiency, the compressor is designed and constructed such that components coming into contact with the refrigerant, preferably the walls forming a flow path between an intake area and a discharge area are thermally insulated against the refrigerant at least in part and in areas of contact. Finally for an effective protection of the belt in the case of a blocking drive shaft or compressor unit, the compressor is designed and constructed such that a coupling device automatically disengages, when a defined thermal and/or mechanical load limited is exceeded.