Significant innovations of the foreign automobile in-dustry. Construction and technological measures

Increasing the competitiveness and improving the consumer properties of the rolling stock of road transport is achieved by the development and implementation into practice of components and innovative solutions assembled on a conveyor belt of automobile wheeled vehicles that are ahead of the requirements of current standards. These innovations define development trends. Keywords: automobile rolling stock; structures; technologies; units; research; design; manufacture; operation

Disassembled method of repairing a KAMAZ-740 engine by adding an additive to the lubrication system

Disclosed is a method of in-place repair of internal combustion engines of automobiles and special machinery on the basis of geomodificators friction, and the results of tests of internal combustion engines. Keywords repair-recovery composition; test engine; resource

Means of filling gas-cylinder cars with compressed natural gas. Lecture № 8. Design features of stationary automobile gas filling compressor stations (CNG Stations)

The classification and standard8size range of modern automobile gas-filling compressor stations (CNG stations) are given. A fragment of the CNG filling station master plan is presented. A schematic diagram of the architectural and planning solutions of a stationary CNG station has been developed. The features of compressed natural gas (CNG) production are summarized. A block diagram of a typical automated system of technological processes of CNG filling stations is presented. The basic, functional and technological scheme of the CNG filling station is given. The design scheme and drive of the multi-stage compressor are developed. The general view and schematic diagram of the gas filling column and its functional components are presented. Keywords compressed natural gas, architectural and planning solutions, classification and characteristics of CNG filling stations, multi-stage compressor, electric drive of the compressor, technological and functional equipment, gas filling column

Analysis of the starting and braking device of the vehicle

The article shows that the use of a pneumohydraulic braking energy recovery system is a promising way to improve both new cars and various used vehicles operated in urban conditions. Keywords analysis; efficiency; patent; vehicle; wheel; braking; acceleration

Significant innovations of the foreign automobile in-dustry. Environmental safety

Effective protection of the environment is largely determined by the perfection of drives for various types of automobile wheeled vehicles, which are responsible for the emission of harmful substances into the atmospheric air and noise emission. These aspects of environmental safety are among the most important areas of research and development for specialists in the field of automotive innovation. Keywords automobile rolling stock; structures; technologies; units; research; design; manufacture; operation; environmental safety

Diesel engine condition assessment by operating oil parameters

The article substantiates the relationship between the given values of the parameters of the working oil and the residual life or failure of the diesel engine at low oil operating time (up to 4 thousand km). The results of studies of changes in the alkaline number, viscosity, flash point, density in the process of engine oil on cars KAMAZ-EURO, graphically presents the state of the engines known as a result of the operation of the dependencies and standards of the parameters of the operating oil. Keywords oil conditions; operating time; technical condition; residual life; alkaline number; viscosity

Means of refueling gas'filled cars. Lecture № 7. Part 5. Features of operation of mobile automobile gas filling stations with liquefied petroleum gas (LPG)

Features of operation of the mobile automobile gas filling station (PAGZS) of the liquefied petroleum gas (LPG) are given. A schematic diagram of the planning solutions of the mobile gas station is given. The procedure for refueling vehicles is described. A feature of the operation of the refueling complex on the basis of a mobile gas station is given. The characteristic features of operation and malfunction of the technological equipment of the mobile gas station are given. The safety features of the technological processes of the gas filling station are summarized. The features of gas station maintenance are described. The features of the system of accounting and release of LPG are described. Keywords liquefied petroleum gas; planning solutions; mobile gas filling station; gas filling station operation; gas equipment; LPG refueling; malfunctions and maintenance; gas filling station safety

Evolution of methods of state management of technical condition of vehicles in Russia

As you know, the new Rules for the technical inspection of vehicles have recently been approved. They should enter into force on March 1, 2021, but due to the pandemic, the dates for the start of the reform in the field of vehicle inspection were postponed. In this regard, it will probably be interesting for our readers to get acquainted with the history of state policy in the field of road safety. Keywords road traffic accident, state policy; road safety; vehicle; technical inspection rules; examination committee; State traffic inspectorate; technical diagnostics of the vehicle

Methods for rapid estimation of indicator and efficient efficiency of internal combustion engines

The article discusses the issue of a quantitative computational assessment of the efficiency of the thermal cycle of a piston internal combustion engine based on the values of the effective and indicator efficiency. A simplified technique for the operational assessment of the efficiency of the thermal cycle of a piston internal combustion engine is proposed. The technique is based on a mathematical description of thermodynamic processes occurring during the development of the thermal cycle of an engine with ignition of the working mixture from compression (diesel engine), which allows it to be expanded to new engines, including those operating under electronic control. Keywords heat cycle; the working process; diesel; heat content of the working fluid; expansion

Characteristics of injection of diesel fuel, rapeseed oil and their mixtures in diesel engines of various types

The necessity of adapting diesel engines to work on vegetable oils is justified. The possibility of using rapeseed oil and its mixtures with petroleum diesel fuel as motor fuels is considered. Experimental studies of fuel injection of small high-speed diesel engine type MD-6 (1 Ch 8,0/7,5)when using diesel oil and rapeseed oil and computational studies of auto-tractor diesel engine type D-245.12 (1 ChN 11/12,5), working on blends of petroleum diesel fuel and rapeseed oil. When switching autotractor diesel engine from diesel fuel to rapeseed oil in the full-fuel mode, the mass cycle fuel supply increased by 12 %, and in the small-size high-speed diesel engine – by about 27 %. From the point of view of the flow of the working process of these diesel engines, changes in other parameters of the fuel injection process are less significant. Keywords diesel engine; petroleum diesel fuel; vegetable oil; rapeseed oil; high pressure fuel pump; fuel injector; sprayer