Abstract: A two-stroke internal combustion engine has: a cylinder; a piston having a piston crown; a combustion chamber roof, the cylinder, the piston, and the combustion chamber roof defining a combustion chamber; an ignition device, the combustion chamber roof having an oval roof outline having a longitudinal axis, the combustion chamber roof having squish surfaces disposed between the roof outline and the cylinder; and a pre-chamber projecting into the combustion chamber in a center of the combustion chamber roof, the pre-chamber being connected to the ignition device, the pre-chamber defining nozzle openings distributed over a circumference of the pre-chamber. A first angular distance between the nozzle openings assigned to outline sections in a region of the longitudinal axis of the roof outline being smaller than a second angular distance between the nozzle openings assigned to intermediate outline sections of the roof outline.

Abstract: An internal combustion engine having: a cylinder block defining a cylinder; a cylinder head defining a seat; a piston; a crankshaft, the piston, cylinder, and cylinder head defining a variable volume combustion chamber therebetween; an air intake passage; an exhaust passage; a fuel injector; and a combustion pre-chamber housing connected to the cylinder head and extending in part into the combustion chamber. The housing has: a tapering portion; and a tip connected to the tapering portion. The tapering portion abuts the seat. The tapering portion tapers toward the tip. The seat and the tapering portion of the housing have corresponding shapes. The housing defines: a combustion pre-chamber; and at least one orifice fluidly communicating the combustion pre-chamber with the combustion chamber. A spring biases the tapering portion of the housing against the seat of the cylinder head. A spark plug is connected to the combustion pre-chamber housing.

Abstract: Container treatment system for treating containers, such as bottles, with at least one direct printing machine for applying a print image onto containers and at least one container treatment machine arranged upstream of the direct printing machine and a system control device, where the system control device is configured to control the operation of the container treatment machine in dependence of a change of the container throughput that can be obtained with the direct printing machine.

Abstract: Container treatment system for treating containers, such as bottles, with at least one direct printing machine for applying a print image onto containers and at least one container treatment machine arranged upstream of the direct printing machine and a system control device, where the system control device is configured to control the operation of the container treatment machine in dependence of a change of the container throughput that can be obtained with the direct printing machine.

Abstract: A tank device, in particular in a vehicle, has a pressure tank for storing fuel and a fuel line for filling the pressure tank which extends from outside of the pressure tank through a tank opening up to a free line end in the interior of the pressure tank. The fuel line in the pressure tank has at least one line outlet through which the fuel can flow out of the fuel line into the pressure tank. The fuel line, between the tank opening and the free line end, has a flexible line section such that the flexible line section moves when the pressure tank is filled.

Abstract: A device (1) for drawing in and intermediately storing a thread (2), comprising a suction chamber (3), wherein the suction chamber (3) includes an entry opening (8) and an exit opening (9), which define a direction of flow, wherein negative pressure can be applied to the exit opening (9) in order to generate an air flow (4). Moreover, the device comprises a depositing surface (5) arranged in the suction chamber (3), on which the thread (2) can be intermediately stored, and a flow element (6) arranged in the suction chamber (3), with the aid of which the air flow (4) can be directed through the suction chamber (3).

Abstract: A winding station of a textile machine for producing cross-wound bobbins includes a base unit, a cover unit, and a bobbin holder configured to hold the cross-wound bobbin. A traversing device is configured to lay a thread in a crosswise manner on the cross-wound bobbin. A thread finding device is configured to find a thread end on the cross-wound bobbin. The base unit at least partially covers the cover unit, and the cover unit is movable with respect to the base unit between a working position for laying the thread and seeking the thread end and a cleaning position for cleaning the winding station. At least portions of the thread finding device are configured on the cover unit. A method is also provided for operating the winding station.

Abstract: A traversing unit for traversing a yarn with respect to a pair of delivery rollers of a workstation of a textile machine includes a yarn-guiding unit, a single traversing drive configured with the yarn-guiding unit, and a conversion element configured with the single traversing drive such a rotational movement (?) of the single traversing drive is converted into a linear, reciprocating movement of the yarn-guiding unit. The single traversing drive is a rotating motor. A sensor is disposed to detect at least a middle position of the yarn-guiding unit.

Abstract: A method for automatically piecing a thread at a workstation of a textile machine, includes seeking an end of the thread on a surface of a bobbin with a suction nozzle and unwinding the thread from the bobbin counter to a regular draw-off direction of the thread and sucking the thread into the suction nozzle. The bobbin is driven in a direction of reverse rotation with a drive. A thread loop is draw-opened in the thread and moved towards a piecing unit via movement of a feeder unit. The bobbin is driven in the direction of reverse rotation during the drawing-open of the thread loop such that the thread is unwound from the bobbin. A speed of reverse rotation of the bobbin is coordinated with movement of the feeder unit.

Abstract: A work station of a textile machine includes a plurality of fiber-guiding work elements that are divided into at least two groups. A first work station part is defined at the work station on which a first group of the fiber-guiding work elements is arranged. A second work station part is defined at the work station on which a second group of the fiber-guiding work elements is arranged. The second work station part is arranged in a movable manner relative to the first work station part at the work station or is arranged in a removable manner at the work station. A pneumatic thread storage element is also provided for a work station of a textile machine for the temporary receiving of a thread, and includes a multi-part structure with a first thread storage section and a second thread storage section connected to one another at a separation point.

Abstract: A yarn return unit for returning a yarn into a delivery unit of a textile machine during a piecing process includes a yarn-guiding section configured to guide and position the yarn with respect to the delivery unit. A blowing unit generates an air flow for returning the yarn from the yarn-guiding section into the delivery unit, the blowing unit defining a flow direction of the air flow. The yarn-guiding section includes an open contour that defines an insertion area through which the yarn is inserted into the yarn-guiding section transversely to the flow direction of the air flow.

Abstract: A method is provided for the enabling of machine functions on a spinning-mill machine comprising multiple components. The method includes transfer of machine-specific data to an enabling device that is physically remote from the spinning-mill machine; evaluation of the machine-specific data through the enabling device; selection of enabling data through the enabling device depending on the machine-specific data; transfer of the enabling data to the spinning-mill machine; and enabling of specific machine functions depending on the enabling data.

Abstract: A device for piecing a thread at a workstation of a textile machine includes a suction nozzle configured to pick up a thread end of the thread from a bobbin, the suction nozzle including an entry opening for the thread. A feeder unit is movable with respect to the suction nozzle and includes a cover element configured to close the entry opening in a first position (I) of the feeder unit and to unblock the entry opening in a second position (II) of the feeder unit. The cover element includes a thread-guiding element having an open contour.

Abstract: A thread guide unit is used for drawing off a thread out of a rotor of a spinning unit of an open-end spinning machine. The thread guide unit includes a draw-off tube, and a compressed air nozzle configured with the draw-off tube. A thread outlet element extends into the draw-off tube. The compressed air nozzle includes a mouth formed as a gap between an inner diameter surface of the draw-off tube and the thread outlet element. A method for operating a spinning unit of an open-end spinning machine having the thread guide unit is also provided.

Abstract: A winding station of a textile machine for producing cross-wound bobbins includes a base unit, a cover unit, and a bobbin holder configured to hold the cross-wound bobbin. A traversing device is configured to lay a thread in a crosswise manner on the cross-wound bobbin. A thread finding device is configured to find a thread end on the cross-wound bobbin. The base unit at least partially covers the cover unit, and the cover unit is movable with respect to the base unit between a working position for laying the thread and seeking the thread end and a cleaning position for cleaning the winding station. At least portions of the thread finding device are configured on the cover unit. A method is also provided for operating the winding station.

Abstract: The invention relates to a transport vehicle (7) for storing unit loads in a storage rack (1) and removing unit loads from a storage rack. The transport vehicle comprises a base frame (27), running wheels (29) which rest on a first guide (36) in a rollable manner, the first guide extending parallel with the longitudinal direction of the storage rack and in a first guide plane extending parallel with a driving plane, and a guide unit (31; 60; 62; 74; 86) which is mounted to the base frame via a bearing device (46; 61; 63; 75; 87) and has guide wheels (49) which rest on a second guide (47; 88) and are rollable in guide sections (48), the second guide extending parallel with the longitudinal direction of the storage rack and in a second guide plane intersecting the driving plane in order to move the transport vehicle in a guided manner.

Abstract: A textile machine and associated operational method are provided, wherein the textile machine has a plurality of workstations for (a) delivering a thread to a bobbin, (b) laying the thread on the bobbin, (c) winding the thread on the bobbin, and (d) finding a thread end wound on the bobbin with a suction nozzle. The thread is run through the suction nozzle during delivery to the bobbin such that the thread enters an inlet mouth in the suction nozzle and exits the suction nozzle through an extraction mouth. Starting from a thread delivery device at the workstation, the thread is run freely until the thread enters the inlet mouth of the suction nozzle directly in front of the bobbin. For finding of the thread end wound on the bobbin, the thread end is sucked into the suction nozzle through the extraction mouth.

Abstract: A method for automatically piecing a thread at a workstation of a textile machine, includes seeking an end of the thread on a surface of a bobbin with a suction nozzle and unwinding the thread from the bobbin counter to a regular draw-off direction of the thread and sucking the thread into the suction nozzle. The bobbin is driven in a direction of reverse rotation with a drive. A thread loop is draw-opened in the thread and moved towards a piecing unit via movement of a feeder unit. The bobbin is driven in the direction of reverse rotation during the drawing-open of the thread loop such that the thread is unwound from the bobbin. A speed of reverse rotation of the bobbin is coordinated with movement of the feeder unit.

Abstract: A muscle trainer comprising curved, elongate spring elements is disclosed. The spring elements are arranged with facing concave sides and include end areas formed at each of the ends of the spring elements. The muscle trainer includes a first joint element being formed at a first end area of each spring element and a second joint element being formed at a second end area of each spring element. The spring elements are connected at their two end areas via joints formed from the joint elements. The first joint elements are designed as brackets having a bend in the direction of the concave side of the respective spring element and in each case at least partially enclosing the second joint element of the respective other spring element. A method for producing the muscle trainer and its use as a hand trainer are disclosed.

Abstract: A yarn return unit for returning a yarn into a delivery unit of a textile machine during a piecing process includes a yarn-guiding section configured to guide and position the yarn with respect to the delivery unit. A blowing unit generates an air flow for returning the yarn from the yarn-guiding section into the delivery unit, the blowing unit defining a flow direction of the air flow. The yarn-guiding section includes an open contour that defines an insertion area through which the yarn is inserted into the yarn-guiding section transversely to the flow direction of the air flow.