Patent ID: 6386165
Filing Date: 2002-05-14
Classification: F01L

Abstract:
An adjusting device (1) for adjusting the phase position of a shaft, which is a camshaft (2), which is caused to rotate by a drive shaft, which is a crankshaft, via a transmission device having at least one transmission wheel (6â€²) located on a shaft, the adjusting device making it possible to adjust the rotational position of the transmission wheel (6â€²) relative to the shaft (2) by means of hydraulic fluid which can be fed in and removed via two annular rotational connections (14a, 14b) and a fluid supply device comprising a control, a rotational position detector and at least one control valve making it possible to set a setpoint rotational position by a corresponding valve actuation, wherein the adjusting device (1) is a rotary piston machine based on the orbit principle, which comprises a stator (5) having an inner gear (5a), an annular rotary piston (4) having an outer gear (4a) engaging the inner gear of the stator (5a), a driven part (3) which can be caused to rotate by the rotary piston (4) and a valve device (8-12), which, for controlling the rotary piston movement, makes it possible to connect rotating regions of the working area (7) between stator (5) and rotary piston (4) to high or low pressure of the fluid supply device.