Balancing the Moments of a VR5 Engine Taking into Account a Desaxial Crank Mechanism and Cylinder Camber Angle

Automobile piston engines with a desaxial crank mechanism are characterized by increased vibration activity associated with a cyclic change in the pressure of the working fluid in the cylinders and inertial forces associated with the reciprocating and rotational movement of the crank mechanism moving masses. Properties reflecting the consumer properties of the engine, including acoustic characteristics, are largely determined by the level of vibration of the structural elements of the desaxial crank mechanism and, first of all, by the balance of inertial forces during operation. The article discusses balancing of five-cylinder four-stroke VR type engines with a desaxial crank mechanism and uniform flash alternation. The authors introduce formulas that can be used to determine and analyze moments of the inertia forces of the reciprocating and rotating masses arising in VR5 engines at the set values of the cylinder camber angle, the ratio of the crank radius to the connecting rod length and the relative displacement of the cylinder axis. A method of balancing the moments of inertia forces of the reciprocating and rotating masses is proposed.

References

[1] Chaynov N.D., Krasnokutskiy A.N., Myagkov L.L. Konstruirovaniye i raschet porshnevykh dvigateley [Design and calculation of piston engines]. Moscow, Bauman Press, 2018. 536 p.

[2] Dvigateli vnutrennego sgoraniya. V 3 kn. Kn. 2. Dinamika i konstruirovaniye [Internal combustion engines. In 3 b. В. 2. Dynamics and design]. Ed. Lukanin V.N. Moscow, Vysshaya shkola publ., 2005. 400 p.

[3] Yamanin A.I., Zharov A.V. Dinamika porshnevykh dvigateley [Piston engine dynamics]. Moscow, Mashinostroyeniye publ., 2003. 464 p.

[4] Ebel B., Kirsch U. Der neue Fünfzylindermotor von Volkswagen. MTZ. Motor-technische Zeitschrift, 1998, vol. 59, no. 1, pp. 8–19.

[5] Deutsch H., Metzner F., Meyer-Hessing F. V-type Internal Combustion Engine Arrangement. Patent U.S. no. 6,076,489, F02B 75/22, 2000. 8 р.

[6] Visek T. Verbrennungsmotor mit Zylindern in enger V-Anordnung. European Patent Office EP 1146219A1, F02F 7/00, F02B 75/22/, 2001, Patentblatt 2001/42. 9 p.

[7] Maslov A.P., Levtsov M.V. Kinematic and dynamic analysis of W-engine featuring slave connecting rods. Dvigatelestroyeniye, 2019, no. 3, pp. 27–30 (in Russ.).

[8] Gusarov V. V., Gazialiyev S. V. VR5 Engine Balancing Analysis. Avtomo-bil’naya promyshlennost’, 2012, no. 6, pp. 13–15 (in Russ.).

[9] Antoshkin A.S. Decaxial crankshaft connector in diesel. Polzunovskiy vestnik, 2006, no. 4-1, pp. 10–15 (in Russ.).

[10] Novikov E.A., Timoshenko D.V. Increasing the compactness of a piston internal combustion engine. Uchenyye zametki TOGU, 2017, vol. 8, no. 4, pp. 80–86 (in Russ.). Available at: http://pnu.edu.ru/media/ejournal/articles-2017/TGU_8_271.pdf

[11] Martynyuk A.V. Calculation of diesel engine processes taking into account de-axial. Aviatsionno-kosmicheskaya tekhnika i tekhnologiya, 2009, no. 8(65), pp. 81–85 (in Russ.). Available at: http://nbuv.gov.ua/UJRN/aktit_2009_8_19

[12] Val’yekho Mal’donado P.R., Runovskiy K.S., Chaynov N.D. Balancing a V-shaped 6-cylinder four-stroke engine with a 90° camber angle and uniform alter-nating flashes. Truck, 2015, no. 6, pp. 14–20 (in Russ.).

[13] Val’yekho Mal’donado P.R., Chaynov N.D. Balancing of V-engines featuring offset of adjacent pins. Dvigatelestroyeniye, 2019, no. 2, pp. 17–25 (in Russ.).

[14] Grigor’yev E.A. Periodicheskiye i sluchaynyye sily, deystvuyushchiye v porsh-nevom dvigatele [Periodic and random forces acting in a piston engine]. Moscow, Mashinostroyeniye publ., 2002. 272 p.

[15] Chistyakov V.K. Dinamika porshnevykh i kombinirovannykh dvigateley vnu-trennego sgoraniya [The dynamics of piston and combined internal combustion en-gines]. Moscow, Mashinostroyeniye publ., 1989. 256 p.

[16] Val’yekho Mal’donado P.R., Grishin D.K., Chaynov N.D. Kinematicheskiy i dinamicheskiy raschety krivoshipno-shatunnogo mekhanizma s pritsepnym shatunom V-obraznogo dvigatelya vnutrennego sgoraniya s primeneniyem programmy Mathcad [Kinematic and dynamic calculations of a crank mechanism with a hook-on connecting rod of a V-shaped internal combustion engine using the Mathcad program]. Moscow, MGMU “MAMI” publ., 2012. 120 p.

[17] Gusarov V.V. Uravnoveshivaniye porshnevykh dvigateley [Piston balancing]. Moscow, MGIU publ., 2010. 134 p.

[18] Tol’skiy V.E., Korchemnyy L.V., Latyshev G.V., Minkin L.M. Kolebaniya silovogo agregata avtomobilya [Fluctuations in the powertrain of a car]. Moscow, Mashinostroyeniye publ., 1976. 266 p.

[19] Segal’ V.F. Dinamicheskiye raschety dvigateley vnutrennego sgoraniya [Dy-namic calculations of internal combustion engines]. Leningrad, Mashinostroyeniye publ., 1974. 248 p.

[20] Popyk K.G. Dinamika avtomobil’nykh i traktornykh dvigateley [Dynamics of automobile and tractor engines]. Moscow, Vysshaya shkola publ., 1972. 327 p.