Theoretical evaluation of plunger pair resource of high pressure fuel pump in case of  working on mixed camelina oil - mineral fuel

Ukhanov, A.P.; Rotanov, E. G.; Khokhlov, A. A.

doi:10.18286/1816-4501-2018-2-18-22

Cited by 3 publications

(1 citation statement)

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“…Повышение эксплуатационных показателей двигателей внутреннего сгорания приво-дит к увеличению нагрузок на узлы и агрегаты. Форсирование ДВС приводит к ухудшению условий смазывания пар трения, к повышению температурного фона в камере сгорания, увеличению механических нагрузок [1][2][3][4][5][6][7][8][9][10][11][12][13]. Увеличение негативного воздействия на детали двигателей внутреннего сгорания приводит к сокращению срока службы, что впоследствии ухудшает экономическую эффективность от принятых мер по повышению эксплуатационных показателей.…”

Section: состояние вопроса исследования и актуальность работыunclassified

Method for Strengthening Parts of Internal Combustion Engines by Surfacing of Ceramic Materials

Volkov,

Ipatov

2024

Voronezh Scientific-Technical Bulletin

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The paper presents a method for strengthening parts of internal combustion engines using timing exhaust valves as an example. To strengthen the working surface of the valve disc, a coating based on a metal-ceramic powder composition, fused with a short-pulse laser system, was used. Studies of the physical and mechanical characteristics of the strengthening coating have been carried out, and the service life of the reinforced exhaust valve has been assessed.

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Section: состояние вопроса исследования и актуальность работыunclassified

Method for Strengthening Parts of Internal Combustion Engines by Surfacing of Ceramic Materials

Volkov,

Ipatov

2024

Voronezh Scientific-Technical Bulletin

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Influence of the thickness and porosity of the oxide coating on the piston heads depending on the parameters of the microarc oxidation mode

Maryin

Molochnikov

Хохлов

et al. 2021

J. Phys.: Conf. Ser.

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This paper discusses the process of formation of an oxide coating (hardening and heat-insulating coating) on the working surfaces of the head (top and piston grooves) of the piston by the method of microarc oxidation (MAO). In the process of oxidation of the piston head, the operating parameters of MAO will have a significant effect on the thickness and porosity of a formed oxide coating. The paper presents the theoretical relationships between the electrical parameters of the microarc oxidation mode and the thickness and porosity of the oxide coating. The thickness of the formed oxide coating on the piston heads will depend on the applied voltage and the composition of the electrolyte used. The porosity of the formed oxide coating will depend on the parameters of the current strength and the applied voltage. It is theoretically established that the formation of an oxide coating of a certain thickness and porosity occurs due to changes in the current strength, voltage and time of microarc oxidation.

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Diesel Technical Support for Work on Diesel Mixed Fuel

Khokhlov¹,

Hohlov

Molochnikov³

et al. 2019

Vestnik of Kazan State Agrarian University

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The article is devoted to solving the problem, associated with the partial replacement of commercial mineral diesel fuel (DT) with mixed vegetable-mineral (DST) motor fuel. DST biocomponent is a vegetable oil, for example, camelina oil. A constructive version of a dual-fuel diesel power supply system is proposed, the main element of which is a mixer-dispenser of vegetable oil and mineral diesel fuel, which, due to the electrodosers controlled by the electronic control unit (ECU), is used according to the signals of the load-speed diesel engine sensors (crankshaft rotational speed, position rail of the high pressure fuel pump) and the camelina oil temperature sensor, to ensure the supply of diesel mixed fuel with different contents components. Under the supervision were tractors of one year of production, with approximately the same operating time and carrying out the same production work at the livestock complex of the enterprise. The estimated parameters of wear of the plunger pairs of the pump sections of the injection pump are: the geometric dimensions of the details of the plunger pairs (ovality and taper of the plunger, diameters of the plunger and sleeve, annular gap between the plunger and the sleeve); mass of parts of plunger pairs (plunger, sleeve); volumetric cyclic fuel supply, hydraulic density of plunger pairs. The use of diesel mixed fuel based on vegetable oil, containing for example 50% mineral marketable fuel and 50% camelina oil, allows a slight decrease in effective power (not more than 6%) and a slight increase in the specific effective consumption of mixed fuel (up to 14%) % of fuel of petroleum origin, as well as reduce exhaust smoke by 17-20% and reduce the content of carbon monoxide by 35-40% compared with the operation of diesel on commercial mineral diesel fuel.

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Theoretical evaluation of plunger pair resource of high pressure fuel pump in case of working on mixed camelina oil - mineral fuel

Cited by 3 publications

References 0 publications

Method for Strengthening Parts of Internal Combustion Engines by Surfacing of Ceramic Materials

Method for Strengthening Parts of Internal Combustion Engines by Surfacing of Ceramic Materials

Influence of the thickness and porosity of the oxide coating on the piston heads depending on the parameters of the microarc oxidation mode

Diesel Technical Support for Work on Diesel Mixed Fuel

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