Abstract: A user of a network-based system may correspond to a user profile that describes the user. The user profile may describe the user using one or more descriptors of items that correspond to the user (e.g., items owned by the user, items liked by the user, or items rated by the user). In some situations, such a user profile may be characterized as a “taste profile” that describes an array or distribution of one or more tastes, preferences, or habits of the user. Accordingly, the user profile machine within the network-based system may generate the user profile by accessing descriptors of items that correspond to the user, clustering one or more of the descriptors, and generating the user profile based on one or more clusters of the descriptors.

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.

Abstract: A switching valve module is provided in a connecting rod of a reciprocating internal combustion engine in order to control a distributing device for changing the compression ratio of a cylinder unit of the reciprocating internal combustion engine. In order to provide an arrangement of a mechanically actuated switching valve module which can be advantageously integrated into the connecting rod, the switching valve module should be arranged in a module housing of which at least partly has an outer cylindrical contour and a transverse through-bore for receiving a control slide valve, and the cylindrical section of the switching valve module can be inserted into a receiving bore in the connecting rod that is transverse to a longitudinal central axis of a connecting rod bearing eye.

Abstract: A switching valve module is provided in a connecting rod of a reciprocating internal combustion engine in order to control a distributing device for changing the compression ratio of a cylinder unit of the reciprocating internal combustion engine. In order to provide an arrangement of a mechanically actuated switching valve module which can be advantageously integrated into the connecting rod, the switching valve module should be arranged in a module housing of which at least partly has an outer cylindrical contour and a transverse through-bore for receiving a control slide valve, and the cylindrical section of the switching valve module can be inserted into a receiving bore in the connecting rod that is transverse to a longitudinal central axis of a connecting rod bearing eye.

Abstract: A device for changing a compression ratio of a cylinder unit of a reciprocating piston internal combustion engine has an eccentric bushing which is rotatably arranged in a bore of a connecting rod eye. Said eye encloses a crank pin of a crankshaft, and the bushing is rotatably guided in the bore and can be locked via locking openings, which are arranged to be offset from each other by preferably approximately 180°. The connecting rod has a locking apparatus which interacts optionally with the locking openings and via which the eccentric bushing can only ever be transferred from one position to the next. The locking apparatus has a sliding guideway extending parallel to the longitudinal axis of the bore of the connecting rod bearing eye. The sliding guide interacts with actuating pins arranged in the locking openings and can be displaced radially with respect to the bushing.

Abstract: A device for changing a compression ratio of a cylinder unit of a reciprocating piston combustion engine is provided. An eccentric bushing is rotatably arranged in a receiving bore hole of a bearing eye of a connecting rod (“conrod”). The conrod bearing eye is formed by a conrod upper part and a conrod lower part, and which surrounds a crankpin of a crankshaft. In addition, the eccentric bushing is rotatably guided in the receiving bore hole and can be locked preferably in two positions which are offset from one another by approximately 180° in the circumferential direction of the eccentric bushing. In order to achieve a targeted rotation of the eccentric bushing in the bore hole of the conrod bearing eye between the locking positions, a freewheel is arranged between an outer casing surface of the eccentric bushing and the receiving bore hole of the conrod bearing eye.

Abstract: A device for changing a compression ratio of a cylinder unit of a reciprocating piston internal combustion engine has an eccentric bushing which is rotatably arranged in a bore of a connecting rod eye. Said eye encloses a crank pin of a crankshaft, and the bushing is rotatably guided in the bore and can be locked via locking openings, which are arranged to be offset from each other by preferably approximately 180°. The connecting rod has a locking apparatus which interacts optionally with the locking openings and via which the eccentric bushing can only ever be transferred from one position to the next. The locking apparatus has a sliding guideway extending parallel to the longitudinal axis of the bore of the connecting rod bearing eye. The sliding guide interacts with actuating pins arranged in the locking openings and can be displaced radially with respect to the bushing.

Abstract: A device for changing a compression ratio of a cylinder unit of a reciprocating piston combustion engine is provided. An eccentric bushing is rotatably arranged in a receiving bore hole of a bearing eye of a connecting rod (“conrod”). The conrod bearing eye is formed by a conrod upper part and a conrod lower part, and which surrounds a crankpin of a crankshaft. In addition, the eccentric bushing is rotatably guided in the receiving bore hole and can be locked preferably in two positions which are offset from one another by approximately 180° in the circumferential direction of the eccentric bushing. In order to achieve a targeted rotation of the eccentric bushing in the bore hole of the conrod bearing eye between the locking positions, a freewheel is arranged between an outer casing surface of the eccentric bushing and the receiving bore hole of the conrod bearing eye.

Abstract: A method for operating an internal combustion engine with a sliding cam valve train that has a cam part (2) with three adjacent cams of different lifts (H, M, L) and a groove-shaped connecting link path with two path sections (S1, S2) that lift in both axial directions of the cam part and are arranged completely one behind the other around the circumference is provided. An actuator (10) selectively couples two actuator pins (7, 8) in the connecting link path, in order to move the cam part. The base position of the cam part should be moved into a desired axial position during the operation of the internal combustion engine through successive coupling of the actuator pins in the connecting link path.

Abstract: A sliding cam valve train for an internal combustion engine is provided. A cam piece (3) displaceably arranged on a carrier shaft (2) includes a cam group (4, 5) with differing cam lifts and an axial groove with two groove tracks (8, 9), which are arranged completely behind one another in the circumferential direction of the axial groove. An actuator pin (10) which may be introduced into the axial groove displaces the cam piece in the direction of both groove tracks. Each of the groove tracks end with a radially lifting ramp (17, 18) for extending the actuator pin from the axial groove. The radial lift of the exit ramps should be significantly smaller than the groove base depth of the axial groove between the exit ramps.

Abstract: A sliding cam valve train for an internal combustion engine is provided. A cam piece (3) displaceably arranged on a carrier shaft (2) includes a cam group (4, 5) with differing cam lifts and an axial groove with two groove tracks (8, 9), which are arranged completely behind one another in the circumferential direction of the axial groove. An actuator pin (10) which may be introduced into the axial groove displaces the cam piece in the direction of both groove tracks. Each of the groove tracks end with a radially lifting ramp (17, 18) for extending the actuator pin from the axial groove. The radial lift of the exit ramps should be significantly smaller than the groove base depth of the axial groove between the exit ramps.

Abstract: A method for operating an internal combustion engine with a sliding cam valve train that has a cam part (2) with three adjacent cams of different lifts (H, M, L) and a groove-shaped connecting link path with two path sections (S1, S2) that lift in both axial directions of the cam part and are arranged completely one behind the other around the circumference is provided. An actuator (10) selectively couples two actuator pins (7, 8) in the connecting link path, in order to move the cam part. The base position of the cam part should be moved into a desired axial position during the operation of the internal combustion engine through successive coupling of the actuator pins in the connecting link path.

Abstract: A controllable coolant pump of a cooling circuit for an internal combustion engine, having a pump housing, in which a pump shaft with associated impeller is rotatably arranged. The impeller conveys a coolant as a volume flow via an intake connection in a pressure or spiral channel of the coolant pump. The volume flow can be influenced by a baffle plate which encloses the outside of the impeller, the push rod of the baffle plate being guided in the pump shaft. In connection with an actuator the baffle plate can be continuously adjusted between two limit positions against the force of a spring. A control element, which has an electro-hydraulic action and which is integrated into the pump shaft, serves as an actuator, wherein the pressurized coolant in the coolant pump is provided as a hydraulic fluid.

Abstract: A controllable coolant pump, insertable in a coolant circuit of an internal combustion engine includes a pump housing, in which a hollow pump shaft is supported rotationally with an allocated impeller. Rotation of the impeller conveys coolant. To control a volume conveyed by the coolant pump an axially displaceable guide disk is provided, allocated to the impeller and cooperating with an actuating mechanism. The guide disk is connected to a push rod, guided in the pump shaft, and is displaceable between two end positions defined by a rear wall and a pump cover of the impeller. The actuating mechanism further includes a displacement pump integrated in the coolant pump, with a coolant flow of the displacement pump being supplied for adjustment of the guide disk via a control valve to an actuator, which includes a piston in a pressure chamber in the pump shaft connected to the push rod.

Abstract: A coolant pump for a coolant circuit of an internal combustion engine, the coolant pump having a pump housingin which is mounted a drivable shaft, to one end of which is attached an impeller-which has vanes extending into a suction chamber and is connected to a cover plate. Fluid can be drawn into the suction chamber through an intake port of the pump housing by joint rotation of the impeller and the cover plate and can be conveyed by the vanes into the pump housing. A guide plate, which is axially displaceable by an actuation unit, is disposed between the impeller and the cover plate. The guide plate has a contour corresponding to the impeller and a collar oriented toward the impeller. The coolant pump is characterized in that the guide plate has at least one opening.

Abstract: A coolant pump of an internal combustion engine, with a pump housing and a hollow shaft rotatably mounted therein. Coolant is delivered via an impeller wheel from a suction connection. The flow is controlled by a guide plate on the impeller wheel that is variably displaceable axially between two end positions. The guide plate is adjustable by a push rod actuator guided in the pump shaft. The actuator has a radial piston pump integrated within the coolant pump with an intake piston and a counterpiston guided in the pump shaft, that are inserted lying opposite one another and delimit a pressure space. The pistons are enclosed outside by a linearly displaceable control element guided in the pump housing. Adjustment of the control element takes place as a function of a rotary angle of the pump shaft via an actuator unit having an electrically operated actuating element and a linear freewheel.

Abstract: A regulatable coolant pump for a cooling circuit of an internal combustion engine having a pump housing with a hollow pump shaft with an impeller. Rotation of the impeller moves coolant. An axially displaceable guide disk on the impeller controls a pump displacement volume and works via an actuating mechanism. The guide disk is rigidly connected to a connecting rod guided in the pump shaft. The actuating mechanism includes a displacement pump integrated in the coolant pump, and an actuator formed as a piston-cylinder unit with a pressure chamber in the pump housing that has a circular annular shape positioned to coincide with an outer region of the guide disk. A piston that works together with the guide disk is guided in linearly displaceable fashion in the pressure chamber. A coolant flow of the displacement pump controlled by a control valve charges the pressure chamber to displace the piston.

Abstract: A regulatable coolant pump for a cooling circuit of an internal combustion engine having a pump housing with a hollow pump shaft with an impeller. Rotation of the impeller moves coolant. An axially displaceable guide disk on the impeller controls a pump displacement volume and works via an actuating mechanism. The guide disk is rigidly connected to a connecting rod guided in the pump shaft. The actuating mechanism includes a displacement pump integrated in the coolant pump, and an actuator formed as a piston-cylinder unit with a pressure chamber in the pump housing that has a circular annular shape positioned to coincide with an outer region of the guide disk. A piston that works together with the guide disk is guided in linearly displaceable fashion in the pressure chamber. A coolant flow of the displacement pump controlled by a control valve charges the pressure chamber to displace the piston.

Abstract: A controllable coolant pump, insertable in a coolant circuit of an internal combustion engine includes a pump housing, in which a hollow pump shaft is supported rotationally with an allocated impeller. Rotation of the impeller conveys coolant. To control a volume conveyed by the coolant pump an axially displaceable guide disk is provided, allocated to the impeller and cooperating with an actuating mechanism. The guide disk is connected to a push rod, guided in the pump shaft, and is displaceable between two end positions defined by a rear wall and a pump cover of the impeller. The actuating mechanism further includes a displacement pump integrated in the coolant pump, with a coolant flow of the displacement pump being supplied for adjustment of the guide disk via a control valve to an actuator, which includes a piston in a pressure chamber in the pump shaft connected to the push rod.