Abstract: A two stroke engine comprises a cylinder, in which a combustion chamber bounded by a piston is formed, and an intake passage. A carburetor forms a section of the intake passage, within which a throttle element is mounted pivotably, and at least one main fuel opening and at least one idling fuel opening open into the intake passage, which is divided downstream of the carburetor into an air passage and a mixture passage. The idling fuel opening feeds a secondary passage arranged within the mixture passage. In the idling position, the throttle element may be arranged adjacent to the upstream entry opening in the secondary passage, and the throttle element may have an opening which, in the idling position of the throttle element, is arranged in the region of the entry opening and connects the secondary passage to that region of the intake passage located upstream of the throttle element.

Abstract: A two-stroke engine, comprising: a crankcase; a cylinder connected to said crankcase; a combustion chamber defined by a reciprocally mounted piston within said cylinder; a crankshaft mounted rotatably in said crankcase and drivingly connected with said piston; at least one overflow passage connecting the crankcase and the combustion chamber when the piston is positioned in the lower dead center region; a connecting stub attached to said cylinder which contains an intake passage that opens into the crankcase and supplies fuel and combustion air, said intake passage including therein an air-fuel mixture passage, wherein said connecting stub contains at least one section of the mixture passage; at least one fuel opening for supplying fuel into said mixture passage; and a guiding rib positioned within said connecting stub and oriented longitudinally in the mixture passage and protruding into the mixture passage.

Abstract: A hand-held power tool has a two-stroke engine with a cylinder with combustion chamber and a piston disposed therein that drives a crankshaft supported in a crankcase. In at least one piston position, crankcase and combustion chamber are connected by a transfer passage. An air passage supplies in at least one piston position combustion air to the transfer passage. A mixture passage for fuel/air mixture is provided. Air and mixture passages in operation are at least partially connected to each other. Part of the mixture passage is formed in a carburetor where a fuel port opens into the mixture passage. The mixture passage opens into the crankcase with a piston-controlled mixture inlet having a width in circumferential direction of the cylinder. Upon upward piston stroke the mixture inlet is connected to the crankcase with a portion of the width before a connection of air passage and transfer passage is established.

Abstract: Metal matrix composite inserts and articles, and methods for making the same.

Abstract: Methods for making metal matrix composite inserts and metal matrix composite articles.

Abstract: Metal matrix composite inserts and methods of making the same. The inserts are useful in making metal matrix composite articles.

Abstract: In an edge connection for the panes (1, 2) of a compound glass element there is provided a spacing profile (3) which preferably consists of a poorly heat-conductive plastic material. This is adhered between the panes with a contact adhesive (4). As a vapour-barrier, a band (5) of a thin flat metal foil is applied around the exterior of the spacing profile. The outer surface (3.1) of the spacing profile is inwardly offset with respect to the flat metal band in the edge regions adjacent the panes, in such a way that peripherally running chambers (6) are created. These chambers are filled with a vapour-proof adhesive, preferably butyl-adhesive.

Abstract: The glazing element is provided with at least one tensioned insulation form (2) between two panes (1). Spring elements (3) secured to a tension profile (4) serve to place the film under tension. The spring elements are distributed over the entire film periphery. They are also elastically bendable in all directions transverse to their elongation, and are secured with their longitudinal direction essentially perpendicular to the film plane with one end at the film and the other end secured to the tension profile In this manner, the spring elements can elastically follow relative shape alterations of the film with respect to the tension profile by bending transversely to their longitudinal direction. In this novel construction, tension forces are distributed in all directions in the insulation film. No friction forces need to be overcome in order to tension the film. The entire tension taken up by the film support is so small that it is possible simply to adhere the tension profile inwardly to the panes.