Patent ID: 8651076

Claim:
An adjusting system for camshafts of an internal combustion engine having an emergency running function, comprising: a phase shifter gearing with an input drive element driven by a crankshaft of an internal combustion engine; an output drive element that drives a camshaft of the internal combustion engine; an actuating element, and a pressure disk rotationally mounted on a shaft, wherein the drive input element is rotatable with respect to the drive output element by operation of a device for imparting a braking torque, wherein the braking torque applied to the actuating element is adjustable when the device is under normal operation, wherein the camshaft arrests the actuating element by braking when the device is under abnormal operation, wherein the actuating element is supported on a shaft and a lining carrier of the device is disposed in an axially displaceable and rotationally fixed manner on the shaft, wherein the braking torque is adjustable by operation of a stationary electromagnet acting on the lining carrier against a force of a spring in a contactless manner, wherein the stationary electromagnet is supplied with an adjustable voltage, wherein the spring exerts the force on the lining carrier against a stationary counter-friction surface upon failure to supply the adjustable voltage to the electromagnet, wherein the phase shifter gearing is planetary gear assembly, comprising: the output drive element comprising a ring gear, the input drive element comprising a planet carrier, and at least one planet gears; and the actuating element comprising a sun gear, wherein the planet carrier has at least one arc shaped opening radially distanced from a rotational axle of the planet carrier, wherein the ring gear has at least one actuating projection extending axially and engaging in the arc shaped opening, and wherein end surfaces in a circumferential direction in the at least one arc shaped opening form stops for the at least one actuating projection, thereby representing a maximal adjustment positions of the camshaft in relation to the input drive element, wherein the pressure disk can be displaced by means of the pressure of the spring axially away from the lining carrier, wherein at least one actuating cam engages in the opening of the planet carrier and is thereby coupled with the planet carrier in a rotationally fixed but axially displaceable manner, wherein an end region with respect to the circumference of a cam surface of the actuating cam, and corresponding to the emergency running setting, is designed in relation to the cam surface as a lowered end region, and wherein the at least one actuating projection assumes the emergency running setting on the ring gear.