The article provides an analysis of the technical experience of operating gas-engine engines, in particular, cars of the GAZ family with a ZMZ engine when they are transferred to a dual-fuel gas-gasoline power supply system. The main technical challenges faced by car owners, maintenance and repair services are noted. Pos-sible ways of their solution are proposed.
The prerequisites for the use of atmospheric plasma spraying processes with multiple reflow and hardening of coatings are considered as a method of obtaining a highly entropic structure in them as applied to wear-resistant coatings.
An extension is studied with dry friction sliding of the FeCoCrAlTiCuNiMo nimo multicompo-nent coating obtained by plasma metallization in an open atmosphere with multiple melting. The results of studies indirectly confirm the effect of coating entropy on increasing its wear resistance with an increase in the number of melting.
The relationship between the engine operating time when a car is moving at the same distance along a city street with different traffic loads and on a highway is given. On the basis of experimental studies, a justification is given for the need to adjust the oil change frequency depending on the engine operating time.
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