Abstract: A piezoelectric motor comprises includes a stator (1) and a rotor (3). The stator (1) has a housing (7), a piezoelectric oscillator (6) generating radial mode vibrations and mounted on the housing (7), said oscillator including a piezoelectric cell (9) with electrodes (13) and at least two pushers (10). Each pusher (10) has one end secured to at least one flat surface of the piezoelectric cell (9) so that a gap (14) is provided between the piezoelectric cell (9) and the pusher (10). The other end of each pusher (10) rests against the rotor (3).

Abstract: An apparatus for detecting heterogeneity of water surface has a series circuit including a transceiver, a hydrometeorological information processing and storage unit and an indicator. According to the invention, the hydrometeorological information processing and storage unit has a cathode ray storage device with a mode selector unit and an electron beam control system as well as a driving generator and a control unit.

Abstract: The proposed cooler has the form of a thermal tube (1) with zones (2 and 3) for evaporation and condensation, respectively, and outer fins (4) in the zone (3). The cooler has a casing (5) open at one side to admit a flow of gas, the casing accommodating fins (4) so that ends thereof form with a wall of the casing (5) at the other side a cavity (A) to reverse the flow of gas. Adjacent fins (4) are hermetically connected into pairs (6), and form passages (7, 8) between each pair and inside each pair. Provided at the walls of the inner passages (8) is a capillary porous lining (9) ends of which are in contact with a liquid medium (10).

Abstract: An evaporator for depositing films in a vacuum consisting of a crucible for containing an evaporant and adapted to be heated by a heater. A tube is provided for forming a directional flow of evaporant toward a substrate. The tube has a mounting structure at both ends so that the tube can be alternately mounted in the crucible at each end about a transverse symmetry plane.

Abstract: The proposed motor comprises a stator and a rotor frictionally interacting with said stator, either said stator and rotor including at least one piezoelectric oscillator. Said oscillator includes a piezoelectric element and electrodes located on the opposite surfaces of the piezoelectric element and connected to a supply source for exciting in this oscillator a resonant mode of longitudinal acoustic vibrations. The motor further includes at least two pushers, each having one end secured on said oscillator and the other end urged against a surface of frictional interaction of the rotor and stator. The piezoelectirc element used in this motor is polarized in the direction perpendicular to the surfaces of the electrodes and is positioned so that the propagation direction of the resonant mode of the longitudinal vibrations is perpedicular to the surface of frictional interaction.

Abstract: A piezoelectric motor of the invention comprises a stator and a rotor one of which includes at least one first piezoelectric oscillator. The rotor consists of a first and a second parts one of which parts includes a second piezoelectric oscillator. Said parts of the rotor are mounted for relative rotation about the axis of rotation. The first part is in contact with the stator along the first surface of frictional interaction and with the second part along the second surface of frictional interaction. Each surface of frictional interaction is formed by rotation of at least one straight line length about the axis of rotation of the rotor.