Abstract: A system for a diesel engine having an intake manifold and an exhaust manifold comprises a turbocharger between the intake and exhaust manifolds of the engine, a low pressure exhaust gas recirculation system, and a high pressure exhaust gas recirculation system. Further, the system includes a controller for coordinating adjustment of exhaust gas recirculation valves and throttles in the system to compensate for interaction between the high and low pressure exhaust gas recirculation systems.

Abstract: A system for controlling a multiple cylinder internal combustion engine is presented. The system operates a first portion of cylinders in a homogeneous charge compression ignition (HCCI) mode and a second portion of cylinders in a non-HCCI mode, and uses an engine controller that is coupled to the first and second portions of cylinders to electronically actuate valves to hold a combusted air and fuel charge in the second portion of cylinders, and exhaust the combusted air and fuel charge to adjust the residual air-to-fuel ratio of the engine.

Abstract: An apparatus for efficiently observing protein crystals for use in X-ray analysis is provided. This apparatus includes an ultra-compact proximity imaging unit and a three-dimensional observation adaptor (4) attached thereto. The imaging unit includes a CCD camera (2) and a lens system (3) and an illumination system in front of the CCD camera (2). The lens system (3) includes a variable or fixed magnification lens. The three-dimensional observation adaptor (4) has an optical-axis reflective surface (4c) disposed between the frontmost lens of the lens system (3) and a production container (100) containing protein crystals in the optical axis a of the lens system (3) and a revolving reflective surface (4d) disposed opposite the optical-axis reflective surface (4c) revolvably about the optical axis to three-dimensionally observe the crystals contained in the production container (100) in an oblique or lateral direction.

Abstract: A pneumatic spring-vibration damper unit is provided for absorbing shocks on wheels and chassis parts of motor vehicles. A variable air chamber is delimited by a rolling bellows which is disposed between a first subassembly that is fixed to the vehicle body and is provided with a vibration damper system and a second subassembly that is fixed to the vehicle chassis and is movable therewith. A piston rod connects the first subassembly located at the vehicle body end and the second subassembly located at the chassis end and whose free end located at the vehicle body end is accommodated inside a cylinder tube of the vibration damper system so as to be longitudinally movable by means of a piston. The piston rod (8) is guided within the cylinder tube (6) of the vibration damper system (2) so as to be longitudinally movable with the aid of a drag bearing arrangement (13).

Abstract: An intake housing for axial fluid flow engines, especially for axial-flow compressors, is proposed. The intake housing comprises an intake shaft (1) with a radial inlet (4) on one side and with an axial, rotationally symmetrical inlet cone (5), which forms an axial flow part (2) together with a jacket (6) protruding into the intake shaft (1) with an inlet edge (7). The axial flow part (2) is in connection with the inlet cross section of the fluid flow engine. The inlet edge (7) of the jacket (6) is connected with an annular diaphragm (9), which is directed at right angles to the axis (10) of the axial flow part (2). Furthermore, the diaphragm (9) is arranged mirror symmetrically at right angles to the axis (10) of the axial flow part (2) and asymmetrically in relation to the axis (10) of the axial flow part (2).

Abstract: A simple and reliable process for activating a medical instrument, for example, one containing an anesthetic agent- or drug-dispensing unit (23) as well as a respirator drive (24) for respirating a patient is provided. The medical instrument is switched on, and a sensor (20) for detecting biometric features of a user, which is connected to or communicates with the medical instrument, is activated by the switching on, so that the individual biometric features of a certain user are detected. Te detected individual biometric features of the certain user are compared with the biometric features of at least one user within a preset time period. The medical instrument is released for the operation by the certain user only in case of agreement between the detected individual biometric features of the certain user and biometric features of at least one user, which were entered in the memory in advance.

Abstract: A method for a hydrogen fueled internal combustion engine to reduce backfiring, pre-ignition, and/or backflash, the engine also including a combustion chamber, an intake manifold, an exhaust manifold, at least one intake valve, at least one exhaust valve, a hydrogen injector, a compression device, and a variable valve timing system coupled to the intake valves. The method comprises compressing air using the compression device; injecting hydrogen and mixing at least said hydrogen with air discharged from the compression device; and opening the intake valve to induct at least air into the combustion chamber, wherein the intake valve opening time varies with an operating condition.

Abstract: A hybrid vehicle propulsion system is disclosed comprising an engine having at least one combustion cylinder configured to operate in a first and a second combustion mode, wherein the first combustion mode is a spark ignition mode and the second combustion mode is a compression ignition mode, wherein the engine is configured to supply an engine output; a motor configured to selectively supply or absorb a secondary output; an energy storage device configured to selectively store at least a portion of the engine output and selectively supply energy to the vehicle; a lean NOx trap configured to store NOx produced by the engine; and a controller configured to control at least the engine, the motor, and the energy storage device, wherein the controller is configured to selectively operate said at least one combustion cylinder in one of the spark ignition mode and the compression ignition mode based on a condition of the lean NOx trap.

Abstract: A quick connection system between an anesthesia respiration system and an absorber has a gas-tight connection between the anesthesia respiration system and the absorber. The absorber (1) has a concentrically arranged gas inlet opening (8) and a gas outlet opening (9) on its front side (4) for this purpose, as well as a guide plate (3) that can be pushed into an absorber mount at the anesthesia respiration system. Centering notches (11, 12), which engage a centering pin at the absorber mount, are provided at the guide plate (3) in the direction of pushing in.

Abstract: A device for dry forming a web of fibers. The device includes; a fiber distribution head (1); a forming wire (3) movable under the head; a suction means (5) located on the opposite side of the forming wire from the head; within the head, a chamber (9) into which a flow of gas, in which said fibers are suspended, is directed, the chamber having a bottom opening (9A) closed by a screen mesh (17) which is essentially parallel to the forming wire (3) and which faces the the forming wire; and agitator members (45) inside the chamber, above the screen mesh (17), for agitating and distributing the fibers. The screen mesh (17) is a continuous mesh, movable along a closed path around the chamber, the portion of the mesh parallel to and facing the forming wire moving along a path which is essentially parallel to the forming wire. Additionally, the agitator members comprise a plurality of rotating shafts (47) which are parallel to each other and orthogonal to the direction of advance (f3) of the forming wire.

Abstract: An adjustable bracket is provided with profiled parts (2, 3), a hinge (4) between the profiled parts (2, 3) and with a duct (7, 8) for accommodating media lines (9). The duct (7, 8) is formed of a flexible material. A fastening device (5, 6) for the duct (7, 8) is present on the top side and/or the underside of the profiled parts (2, 3) in such a way that it can be guided over the hinge (4).

Abstract: A tool system for replacing a glow plug (31) of a diesel engine includes a plurality of tools (55), by means of which a defective glow plug (31), which is screwed tightly into an internal thread (33) of a mounting hole (32) of a cylinder head (30) of the diesel engine, can be removed from the mounting hole (32), the glow plug (31) being arranged in a radially expanded, cylindrical depression (34) of the mounting hole (32) of the cylinder head (30). To make it possible to accurately align the individual tools (55) necessary for replacing the glow plug (31) with the central longitudinal axis of the mounting hole (32), a clamping sleeve (2) is provided, which can be inserted into the depression (34) and into which a centering sleeve (1, 20) can be pushed to concentrically align the individual tools (55, 65, 75, 85, 95). The clamping sleeve (2) can be pressed into the depression (34) to hold the centering sleeve (1, 20) in a fixed and clamping manner.

Abstract: Convertible embossing device comprising a structure (1) with two fixed sides (10) and two mobile sides (11) with respective external faces (EF, EM) and internal faces (IF, IM) and provided with, in correspondence of the respective internal faces (IF, IM), two upper recesses (12, 13) and two lower recesses (12?, 13?) with a circle-arc profile intended to support the end flanges (20, 30) of the two embossing rolls (2, 3) orthogonal to the sides (10, 11) of the same structure (1), wherein the mobile sides (11) are joined to the fixed sides (10) and the respective upper and lower recesses (12, 13, 12?, 13?) define, by cooperating with one another, two pairs of circular seats for the flanges (20, 30) of the rolls (2, 3), and in that, in a second operating position, the mobile sides (11) are distanced from the fixed sides (10) and the upper recesses (12, 13) of the sides (10) and (11) define, each one by cooperating with corresponding semi-circular closure flanges (15, 16), two pairs of circular seats for the flang

Abstract: A mixing device (9) for fibers in a gaseous flow, specifically designed to be arranged on the line supplying a head for forming air-laid webs, is described. The device comprises a duct (11) for fibers suspended in a gaseous flow, with an inlet (13) and an outlet (15). A plurality of rotors (16-19), perpendicular to said flow and equipped with radial elements (43), is provided between the inlet and the outlet.

Abstract: The corrugating roller (7; 9) for machines to produce corrugated cardboard, comprises: a hollow cylindrical body (7B; 9B), with an outer (7D; 9D) surface provided with corrugations (7C; 9C); a circuit for a heat-carrying fluid; and a pair of necks (7E, 7F; 9E, 9F), through at least a first (7E; 9E) of which said heat-carrying fluid is supplied. The body (7B) and the necks (7E, 7F) are produced in a single block machined by removal.

Abstract: A thermotherapy device is operated as an incubator or as an open care unit. The care unit has a bed for receiving newborns, which can be closed with a hood (3). At least one heat radiation source (4) is provided. The hood (3) is located between the bed and the heat radiation source (4) when the thermotherapy device is closed and the hood is at least partially transparent to the radiation originating from the heat radiation source (4). The device allows only a small temperature drop during the transfer from the open mode of operation into the closed mode of operation and vice versa.

Abstract: A breathing mask to be fastened with a strap on the head with breathing gas supply through the strap. The strap includes areas that have a multilayer design and at least two layers of the material of the strap lying one on top of another are connected with one another such that they form a channel, through which a gas can flow.