The assembly has a valve adjusting unit (16) moved between adjusting positions using an electromagnetic actuator (14). A valve adjusting lever (18) is coupled with the unit (16) via a slide that is supported in the unit (16). The actuator has an anchor section (40) that is supported in a coil arrangement and is displaced in an axial direction during excitation of the arrangement. A guide sleeve (60) made of a soft-magnetic material is fixed in the arrangement. An outer surface of the section is coated with friction-resistant material Teflon(RTM: Polytetrafluoroethylene). An independent claim is also included for an electromagnetic actuator for a valve arrangement.

The assembly has a valve adjusting unit (16) moved between adjusting positions using an electromagnetic actuator (14). A valve adjusting lever (18) is coupled with the unit (16) via a slide that is supported in the unit (16). The actuator has an anchor section (40) that is supported in a coil arrangement and is displaced in an axial direction during excitation of the arrangement. A guide sleeve (60) made of a soft-magnetic material is fixed in the arrangement. An outer surface of the section is coated with friction-resistant material Teflon(RTM: Polytetrafluoroethylene). An independent claim is also included for an electromagnetic actuator for a valve arrangement.

The invention relates to a gearbox control device comprising an input clutch which is controlled by a clutch release fork (30) and at least two shift actuators (200, 100) which each control two forward gear shifts. The invention is characterised in that the clutch release fork control shaft (50) can be moved by one of the aforementioned actuators.

The device has a connecting link (10) and an intake plate that comprises a retainer, where the intake plate is rotatable around 180 degrees. An actuator engages at an actuator point and is connected with a linear drive (7). The intake plate comprises a pivot bearing (9) whose axis coincides with the actuator point. A guiding pin is arranged between the tool and a stacking station and the connecting link comprises two linear sections (11) and a V-shaped section (12) between the two sections.

The device has an armature (4) moving linearly in relation to a stator (2). An electrodynamic linear direct drive system (6) with permanent magnets arranged one on stator and other on armature, where the armature subjected to a setting force. A fluid power drive system (7) provides fluid actuation of the armature for the production of another setting force that differs from the previous force.

The slide block (16) is pushed onto the slide block carrier (12).

The system foresees for each plate (1) an autonomous mechanical structure composed of one section bar (3) connected to a gripper that holds a plate (1) as well as of another section bar (10) and at least two support arms (5, 5′, 6, 6′) hinged upon said section bars (3, 10); the structure is fixed to a section bar (9) that is in turn fixed to the display counter or window near the base of the tank; the support arms (5, 5′, 6, 6′) differ in length; two supports (4, 4′, 11, 11′) are fixed to each section bar (3, 10); said supports constitute the hinge members upon which the ends of the support arms (5, 5′, 6, 6′) fit; each plate (1) can both move in a parallelogram motion with translation parallel to the display counter or window, and open like a casement window using the pin (7) of the shorter support arm (5, 5′) as a pivot; the system also contains a spring closing mechanism and a lock (18).

The system foresees for each plate (1) an autonomous mechanical structure composed of one section bar (3) connected to a gripper that holds a plate (1) as well as of another section bar (10) and at least two support arms (5, 5′, 6, 6′) hinged upon said section bars (3, 10); the structure is fixed to a section bar (9) that is in turn fixed to the display counter or window near the base of the tank; the support arms (5, 5′, 6, 6′) differ in length; two supports (4, 4′, 11, 11′) are fixed to each section bar (3, 10); said supports constitute the hinge members upon which the ends of the support arms (5, 5′, 6, 6′) fit; each plate (1) can both move in a parallelogram motion with translation parallel to the display counter or window, and open like a casement window using the pin (7) of the shorter support arm (5, 5′) as a pivot; the system also contains a spring closing mechanism and a lock (18).

A pivoted piston for an internal combustion engine. The piston has a pivot pin (14) and an arcuate first sealing surface 12 which describes a circumferential path about the pivot pin (14) which forms a removable and replaceable skirt to the piston. The piston also includes a second arcuate sealing surface (13) which also describes a circumferential path about the pivot pin and which is connected to the first arcuate sealing surface by a piston floor (21). The second arcuate sealing surface (13) is composed of at least two arcuate sealing components (24) which are located on a bed (20) with the components being located on the bed (20) so they will have limited transverse movement on the bed (20). The components (24) have mating faces which restrict the path of combustion gases between the mating faces. The piston further includes side seals (62) which are located in grooves (63) in the side of the piston. A restraining pin (60) assists in locating the seals (62) in the seal grooves and also closes a pressure escape path for the combustion gases. The piston further includes means to allow liquid coolant to pass through the pivot shaft 14, through liquid cooling galleries in the piston and out o the pivot shaft 14.

The device (1) comprises a base (2), carrying a servo motor (3) and attached to the frame of a machine center. A carriage (6) with a vertical shaft (8) on top can be moved on two telescopically arranged rails (4,5) joined horizontally to the base (2). The tool holding elements (16,17) are positioned at the upper end of the shaft (8) and can be fixed with a locking unit (18). A control plate (12) is located at the second rail (5) acting in combination with a guiding roll (10) in order to facilitate a swivel motion of the tool carrier (15).