Abstract: A control device within an actuator includes control logic for a second actuator, the second actuator being connected with the first actuator through a communications interface. By storing the control logic in the second actuator, the construction space for this second actuator is optimized. By integrating the control logic into a control device of the first actuator, the power density of the control device is increased.

Abstract: A printing mandrel (1) for receiving a substantially cylindrical hollow body comprises a coupling part (2) with which the printing mandrel is insertable in a printing machine. Attached to the coupling part (2) is a receiving part (3) comprising a substantially cylindrical surface (4), onto which receiving part the body is able to be pushed and from which receiving part the body is able to be removed. Made in the end region (5) of the mandrel (1) remote from the coupling part (2) are openings disposed in the surface (4) in a way distributed over the periphery, which openings are connected to an air supply disposed in the mandrel (1). By means of the compressed air exiting the openings (7) a body to be pushed onto the printing mandrel is expanded, which facilitates an easy pushing on; with a cutting off of the compressed air supply an optimal seating between the body and the printing mandrel (1) results, which facilitates an optimal processing of the body.

Abstract: A hydrokinetic torque converter with a built-in bypass clutch is provided with an arrangement which regulates the cooling of the clutch at a rate dependent upon the slip between the coaxial driving and driven parts of the clutch, and hence upon the quantity of generated friction heat. The cooling unit for the driving and/or driven part of the clutch can employ, for example, one or more pumps; a supply of a substance which changes its aggregate state from liquid to gaseous or from solid to flowable in response to heating, and vice versa in response to cooling; one or more porous washers in the path for the flow of hydraulic fluid between the customary plenum chambers provided in the housing of the torque converter to move a piston of the driven part of the clutch into and from frictional engagement with the housing; and/or a system of recesses, grooves, channels and/or other passages serving to convey fluid between the chambers at a rate which is higher or highest when the clutch operates with maximum slip.

Abstract: A hydraulic torque converter, particularly for use in a motor vehicle between the prime mover and the transmission of the power train, employs a combination of a bypass clutch with one or more torsional vibration dampers which brings about savings in space and/or in the number of parts. In addition, the torque converter can stand long periods of use and is less prone to wear, adverse influences of abruptly developing stresses and/or other undesirable influences than conventional torque converters. Furthermore, the improved torque converter employs or can employ a bypass clutch and/or one or more torsional vibration dampers simpler and less expensive than but superior to those in conventional torque converters.

Abstract: A hydrokinetic torque converter with a built-in bypass clutch is provided with an arrangement which regulates the cooling of the clutch at a rate dependent upon the slip between the coaxial driving and driven parts of the clutch, and hence upon the quantity of generated friction heat. The cooling unit for the driving and/or driven part of the clutch can employ, for example, one or more pumps; a supply of a substance which changes its aggregate state from liquid to gaseous or from solid to flowable in response to heating, and vice versa in response to cooling; one or more porous washers in the path for the flow of hydraulic fluid between the customary plenum chambers provided in the housing of the torque converter to move a piston of the driven part of the clutch into and from frictional engagement with the housing; and/or a system of recesses, grooves, channels and/or other passages serving to convey fluid between the chambers at a rate which is higher or highest when the clutch operates with maximum slip.

Abstract: A hydraulic torque converter, particularly for use in a motor vehicle between the prime mover and the transmission of the power train, employs a combination of a bypass clutch with one or more torsional vibration dampers which brings about savings in space and/or in the number of parts. In addition, the torque converter can stand long periods of use and is less prone to wear, adverse influences of abruptly developing stresses and/or other undesirable influences than conventional torque converters. Furthermore, the improved torque converter employs or can employ a bypass clutch and/or one or more torsional vibration dampers simpler and less expensive than but superior to those in conventional torque converters.

Abstract: Overheating of various parts of a hydraulic torque converter between the engine and the transmission of the power train in a motor vehicle, wherein the torque converter employs a bypass clutch which generates heat when it is operated with slip, is counteracted by establishing one or more paths for the flow of hydraulic converter fluid from a first plenum chamber at one side of the axially movable piston of the bypass clutch to a second plenum chamber. A first portion of each such path is defined by at least one groove in a friction surface of at least one part of the bypass clutch, and a second portion of each such path is defined by one or more throttling orifices which offers or offer to the fluid flow a resistance several times that of the groove(s).

Abstract: A hydrodynamic torque converter has a rotary housing which carries a pump assembly and can be driven by the output element of a prime mover in the power train of a motor vehicle, a turbine which is rotatable in the housing and has a hub mounted on the input shaft of a change-speed transmission, and a lockup clutch which, when engaged, can transmit torque from the housing directly to the turbine. The axially movable piston of the clutch is rotatable with the housing; this piston defines a first chamber with the housing and a second chamber with the turbine. The first chamber can receive pressurized hydraulic fluid to cause the piston to disengage the clutch so that the turbine can be rotated by the pump assembly by way of the body of fluid in the housing between the pump assembly and the turbine. The second chamber can receive fluid along at least one first path to engage the clutch by moving the piston toward the housing, and along at least one second path when the clutch is at least partially engaged.

Abstract: A hydraulic torque converter, particularly for use in a motor vehicle between the prime mover and the transmission of the power train, employs a combination of a bypass clutch with one or more torsional vibration dampers which brings about savings in space and/or in the number of parts. In addition, the torque converter can stand long periods of use and is less prone to wear, adverse influences of abruptly developing stresses and/or other undesirable influences than conventional torque converters. Furthermore, the improved torque converter employs or can employ a bypass clutch and/or one or more torsional vibration dampers simpler and less expensive than but superior to those in conventional torque converters.

Abstract: A method of monitoring a torque transmission system with a manually switchable gearbox in the power train of a motor vehicle involves the utilization of at least one sensor unit at the input side of the torque transmission system to ascertain relevant positions of the shift lever of the gearbox and the driving torque of the engine of the motor vehicle. The thus obtained shift lever signals are memorized, together with comparison signals which are obtained as a result of filtering of the shift lever signals, and various characteristics of such signals are recognized and identified to indicate the intention of the operator of the vehicle regarding the switching of the gearbox. The thus obtained switching intention signals are transmitted to a controlled clutch operating system.

Abstract: The invention relates to a pressure medium system with at least one valve and one pressure medium supply, whereby a differential pressure can be purposely controlled in a positive and negative pressure area, especially for controlling a torque converter lockup clutch of a hydrodynamic torque converter.

Abstract: A microbiological process for producing vanillin and other useful products from ferulic acid is disclosed. Vanillin and guaiacol are recovered from the process using a differential pH extraction where the guaiacol is recovered at a pH of greater than 9 and the vanillin is recovered at a pH of from about 5 to about 8.

Abstract: A torque-transmitting device is connected to a prime mover unit and a speed-changing transmission and includes a hydrodynamic torque-converter or fluid coupling with a pump wheel, a turbine wheel and in some cases a stator wheel. The torque-transmitting device has a disconnecting clutch to uncouple it from the prime mover unit.