Sarayeva I. Diagnosing process improvement of cylinder-piston group and air-tighness of vehicle petrol engine valves

T3. A research object is the process of diagnosing of the technical being of cylinder-piston group and impermeability of valves of combustion engine. Target of work - to perfect the process of diagnosing of cylinder -piston group and impermeability of valves, doing it more reliable, exact, informing and deep. Research methods: tenzometricheskiy method of measuring with the further analog-to-digital signal shaping, methods of mathematical statistics, regressive analysis, tolerant scopes, analysis, synthesis, design and booleva algebra. Theoretical, practical results and novelty: first in relation to new models of petrol engines from two, by four and five valves on a cylinder got universal theoretical law of closeness of distributing of casual size of compression and regressive models between frequency of rotation of crankshaft and casual size of compression, the method of diagnosing of cylinder -piston group and impermeability of valves of engine is improved, the process of the automated raising of diagnosis and mathematical criteria of estimation of quality of diagnostic parameter got further development. The modern automated diagnostic stand and method of diagnosing of the technical being of cylinder -piston group and impermeability of valves of petrol engine of car are developed. Substantive scientific provisions, practical and methodical development is drawn on and inculcated on the technical service station, car repair service factory, aviation enterprise. The sphere of the use is the tools of transport.