Patent application number | Description | Published |
20080210182 | Electric Camshaft Adjuster - The invention relates to an electric camshaft adjuster for adjusting and securing the phase angle of a camshaft of an internal combustion engine with respect to its crankshaft, having a three shaft gearing which is embodied as a harmonic drive ( | 09-04-2008 |
20110146603 | METHOD FOR ADJUSTING A CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE, CAMSHAFT ADJUSTMENT SYSTEM, AND INTERNAL COMBUSTION ENGINE HAVING AN ADJUSTABLE CRANKSHAFT - A method for adjusting a crankshaft of an internal combustion engine which has a camshaft adjuster that in turn has a triple-shaft gear mechanism with a setting shaft, a camshaft sprocket and a camshaft. The camshaft sprocket is drivably connected to the crankshaft. During motor standstill or in a transition phase, in which at least one of the three shafts of the triple-shaft gear mechanism stands still, a driving of the setting shaft occurs. Also, a camshaft adjustment system is disclosed which has a triple-shaft gear mechanism with a control device that adjusts the crankshaft during the motor standstill or in a transition phase. | 06-23-2011 |
20110162597 | VARIABLE COOLANT PUMP - A variable coolant pump for a cooling circuit of an internal combustion engine, that has a pump housing in which is mounted a hollow shaft that is driveable by a pulley. At one end of the hollow shaft an impeller is fastened which has vanes projecting into an inlet chamber and which is firmly connected via axial bridges to a cover disc. Through rotation of the impeller together with the cover disc, water can be sucked into the inlet chamber via an inlet connection piece of the pump housing and conveyed by the vanes into an annular passage of the pump housing. A guide disc with a contour corresponding to the impeller is further arranged between impeller and cover disc. The guide disc is guided by the axial bridges and can be displaced axially via a positioning unit by a piston located inside the hollow shaft. | 07-07-2011 |
20110303172 | VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE HAVING AN ADUSTMENT DEVICE - A valve drive for controlling gas exchange valves of an internal combustion engine. The valve drive has at least one valve camshaft that is supported within a cylinder head of the engine and that can be moved in rotation by a drive disk and an adjustment device, which has an adjustment motor and a gear train. The adjustment device provides for an axial movement and/or rotation of the valve camshaft relative to the drive disk in a specific manner upon actuation of the adjustment motor and by the intermediately connected gear train in order to vary in a specific manner an actuation of the gas exchange valves that occurs by cams of the valve camshaft. Also, the adjustment motor is placed predominantly or completely within a common chamber with the drive disk. | 12-15-2011 |
20130305853 | THREE-SHAFT ADJUSTMENT MECHANISM WITH ALTERED MASS DISTRIBUTION AND METHOD FOR PRODUCING A SHAFT GENERATOR - A three shaft adjustment mechanism including a drive part which can be connected to a drive shaft in a rotationally fixed manner, a driven part which can be connected to a driven shaft, and an actuator which can be connected to an adjustment shaft as a mechanism part. A mechanical stop for defining an adjustment angle between the drive shaft and driven shaft is provided between two of the three shafts. According to the invention, the mechanism part not involved in the stop has a mass distribution or form which is such that a quotient from its mass moment of inertia J and its partial radius r is smaller than 0.4 kg×mm. The invention also relates to a method for producing a shaft generator having this type of mechanism. | 11-21-2013 |
20130305864 | HARMONIC DRIVE WITH STIFFNESS-OPTIMIZED WAVE GENERATOR - A shaft transmission including at least one annulus having an inner gearing, a flexible spur gear arranged within the annulus and having an outer gearing, and a shaft generator for deflecting the spur gear in radial direction arranged within the spur gear, a torque-transmitting connection being created between the annulus and the spur gear at two opposing points of the spur gear, the shaft generator having a ring with an elliptical outer periphery and an elliptically shaped rolling bearing applied to the outer periphery, the rolling bearing having an outer ring ( | 11-21-2013 |
20130312682 | THREE SHAFT ADJUSTMENT MECHANISM WITH INTEGRATED OVERLOAD COUPLING - A three-shaft adjustment mechanism is provided including a drive part which can be connected to a drive shaft in a rotationally fixed manner, a driven part which can be connected to a driven shaft in a rotationally fixed manner and an actuator which can connected to the adjustment shaft in a rotationally fixed manner. A first mechanical stop is arranged between two of the three shafts for defining an adjustment angle between the drive shaft and the driven shaft. According to the invention, an overload coupling integrated into the actuator is provided between the actuator and the drive part or the driven part. | 11-28-2013 |
20140007830 | THREE-SHAFT TRANSMISSION HAVING AN ELASTIC COUPLING ELEMENT - A triple shaft adjusting gear including a driving part ( | 01-09-2014 |
20140076252 | ELECTRIC PHASING OF A CONCENTRIC CAMSHAFT - A concentric cam shaft assembly, including: a first camshaft; a second camshaft including at least a portion disposed radially within the first camshaft; and at least one phasing assembly including first and second electric motors and a first input gear arranged to rotate at a first speed in response to receiving rotational torque from a crankshaft of an engine. The rotational torque is arranged to rotate the first and second camshafts. The first electric motor is arranged to circumferentially off-set the first camshaft with respect to the first input gear. The second electric motor is arranged to circumferentially off-set the second camshaft with respect to the first input gear. | 03-20-2014 |