Abstract: An internal-combustion engine comprised of a cylinder with at least one piston which is moving to and fro in it, and a piston rod (6), which transforms the piston's movement to rotary motion in a crank shaft (9), and including equipment for a forcible stabilization of the piston axle. Each small end of the piston rods has an additional part (6g) at its right side, to produce an additional torsional moment with the aid of inertial forces. This part is characterized by its optimized form; the piston rod's big end (6f) includes the additional parts (6m), (6n), also at its right side; In this way, the force vectors and the torsional moment of the motor are optimized due to the effect of the inertial forces and the mass of the entire piston rod may be used to increase the inertial forces, which results in a considerable improvement of the economic and ecological properties of internal-combustion engines and other piston engines.

Abstract: A molding head is especially adapted for vacuum molding or forming of structures and, in particular, fibrous composite structures in an adjustable, controllable three dimensional orientation before, during and after molding. Such a molding head includes a mold plate with narrow slots in the mold surface thereof and wider channels in the back surface thereof, with such slots and channels intersecting one another. A control system of servomotors or other actuators permits movement and orientation of the mold head during forming, thereby creating the ability to vary the material properties based on gravity and particle or suspension grain, thickness and other now controllable properties.

Abstract: An improved pesticide delivery system is disclosed. The system is based on a microblend comprising (a) an amphophilic compound containing at least one hydrophilic group and at least one hydrophobic group and (b) a second compound. Compositions based on the microblend and methods of using the compositions to control pests are also disclosed.

Abstract: A composition for reducing vibrations, including both damping structureborne vibrations and reducing radiated airborne noise. The composition is either a mixture of at least two different granular materials, or is a granular material having a bulk sound speed of less than 90 m/s. The damping properties of a mixture can be calculated from the bulk densities and stiffnesses of its individual components.

Abstract: The invention relates to the use of low-density granular fill with a specific gravity less than 1.5, placed in hollow cavities built into turbomachinery blades, vanes, and shafts. The granular fill provides effective damping at lower frequencies than conventional passive damping treatment due to its low bulk compressional sound speed. Selected materials used for the granular fill treatment are chosen for specific turbomachinery needs, including temperature of operation. Rotation speed is also a factor because it induces on the granular material an apparent hydrostatic pressure associated with the centripetal acceleration, and sound speed in granular materials is a function of pressure raised to the power 1/n. Preferred designs for placement of low-density granular material in appendages and shafts are found using an iterative design tool based on the Direct Global Stiffness Matrix method.