Results of the analysis of operation features of motor-and-tractor internal combustion engines with turbo-supercharging are given. The design of an advanced bearing assembly and of the heat insulation of turbo-supercharger elements is presented.
The article describes the results of experimental research of forest fire extinguishing unit with end mill based on self-propelled chassis T-16M. Optimum velocity of unit, rotation frequency and diameter of the working organ, the number of cutting knives, their inclination to the cutting disc plane and radius are considered.
In article earlier offered models of cotton harvesters capacity, and also new designed models and the results of calculation of the influence of different factors on their capacity are presented.
In article the theoretical research of machine for leaf-and-stalk mass removing before onion harvesting is presented. The general kind of work and optimal parameters of rotational working member are considered.
The device that transforms the rotation of a drive shaft of mechanical stepless transmission into angular oscillations of intermediate parts is considered. The rotation of fixed direction is transmitted from these parts to the driven torsion shafts by means of mechanical rectifiers (one-way clutch). The value of the device structural parameter, at which maximum loads acting on its units are considerably decreased, is defined.
It is offered to change coordinate representation of such popular characteristics of traction systems, as traction characteristics and φ-s-diagrams. It is shown that it will essentially facilitate teaching and understanding of physical sense of the phenomena put in their basis.
In article the influence of combustion regulators on technical and ecological characteristics of work of internal combustion engines is described. Influence of chemical combustion controllers on the exit of nitrogen oxides of engine SMD-18N is defined. Dependence of the exit of nitrogen oxides on the factor of excess of air is revealed.
In this work compression springs with torsion are examined. In calculations relations between kinematic and static characteristics, according to the Kirchhoff and Clebsch theory, are used. Calculation of springs on carrying capacity or reliability loss with critical values of torque and axial force determination is brought.
A mathematical model of machine-and-tractor unit, allowing to reduce the extent of test and to optimize the engine and transmission parameters, is considered.
The article is devoted to the problem of multisections articulated transport-and-technological systems modeling. Classification and analysis of options for the use of articulated transport-and-technological systems in various fields of national economy are given. A modular approach, which allows to use the object-oriented method for modeling and programming in the design phase, is suggested. This approach can considerably simplify and accelerate the creation of complex transport-and-technological systems.
The description and basic engineering data of grain storage hoppers - reloaders, serving as buffer when grain is transported from grain harvesters to the places of postharvest treatment, are given.
Possibility of independent (from the point of view of electricity consumption) functioning of heat-generating sets, used for the engine prestarting heat, for the maintenance of its thermal condition, for the cabin (salon) heating at movement or on parking, is shown.