Adaptive system of supplying lubricant to the internal combustion engine

© Published under licence by IOP Publishing Ltd. This paper assesses the impact of reducing the pressure in the lubrication system on the failures of the crankshaft bearings. The method of adapting lubricating system of the diesel engine as the wear in operation and depending on the operation modes

Application of electric erosion machining for the restoration of splined surfaces

© Published under licence by IOP Publishing Ltd. The paper presents an analysis of the possibility of using electric erosive machining when restoring splined surfaces on specialized equipment

Machine elements evaluation diagnostic devices development using compressed air on crankshaft bearings example

© 2019 IOP Publishing Ltd. All rights reserved. Devices for diagnosing the degree of wear of crankshaft bearings, suitable for embedding in the on-board system for diagnosing a vehicle during its operation have been developed

Machine elements evaluation diagnostic devices development using compressed air on crankshaft bearings example

© 2019 IOP Publishing Ltd. All rights reserved. Devices for diagnosing the degree of wear of crankshaft bearings, suitable for embedding in the on-board system for diagnosing a vehicle during its operation have been developed

Lubrication Conditions and Development of Pre-failure State of Crankshaft Bearings

© 2020, Springer Nature Switzerland AG. Most researchers attribute the failure of bearings of a cranked shaft of the engine with the violation of hydrodynamic lubrication. Under normal engine operating conditions, the main oil line maintains the pressure required to ensure optimal lubrication of the friction surfaces. As the bearings of the crankshaft wear out and, consequently, increase the gaps in them, the flow of oil through the bearings is facilitated; in this regard, the pressure in the oil line decreases. The pressure and oil flow through the connecting rod bearings are due to a large number of factors: the performance of the oil pump, the operating mode of the engine, and the degree of wear, as well as design features of lubrication systems, individual components and parts, the method of supplying oil to them. In addition, the oil flows in the rotating crankshaft are subject to centrifugal forces, resulting in pressure loss in the channels up to 50% of the nominal value, which leads to a decrease in oil flow through the connecting rod bearings. Negatively affect the modes of rupture of the oil flow supplied to the connecting rod cavity, which actually precede the failure of the crankshaft bearings. Their research is devoted to this work

Adaptive system of supplying lubricant to the internal combustion engine

© Published under licence by IOP Publishing Ltd. This paper assesses the impact of reducing the pressure in the lubrication system on the failures of the crankshaft bearings. The method of adapting lubricating system of the diesel engine as the wear in operation and depending on the operation modes

Providing normal conditions of lubricating of diesel engine during its operation

© Published under licence by IOP Publishing Ltd. This paper analyzes the experience of operating an internal combustion engine crankshafts and bearings. The influences on failure depressurization in the lubrication system are evaluated. Means of maintaining pressure in operation are proposed and estimated

La Patrie : journal quotidien, politique, commercial et littéraire

02 août 18671867/08/02 (A27)

Providing normal conditions of lubricating of diesel engine during its operation

© Published under licence by IOP Publishing Ltd. This paper analyzes the experience of operating an internal combustion engine crankshafts and bearings. The influences on failure depressurization in the lubrication system are evaluated. Means of maintaining pressure in operation are proposed and estimated

Method of preparation for restoration of worn nitrided journals of crankshafts

The internal combustion engine is the most expensive component of a car, which determines the reliability and efficiency of its use. Studies show that one of the most common reasons for the failure of KAMAZ diesel engines during operation is the underutilization of the crankshaft resource due to wear of parts and couplings that limit its resource. An increase in the resource of crankshafts can be achieved by improving the technological processes of restoration and repair. Full utilization of the resource of KAMAZ nitrided crankshafts is possible by surfacing worn journals only after removing a nitrided layer up to 0.4 mm thick from the journals surface using specialized equipment for electrical discharge machining. Electrical discharge machining is based on the removal of material particles from the surface by an electric discharge pulse between electrodes immersed in a liquid dielectric, in the channel of which a high-temperature plasma is formed