Theoretical research response time of the mechanism for compression ratio changing of the conrod-free engine

• Autorzy: Kolesnikova Tatiana , Mischenko Nikolay , Sakno Olha , Suprun Volodymyr , Filipova Galynaa , Nikitchenko Igor , Gorpyniuk Andrii , Nazarenko Mykola

Identyfikatory

DOI

10.20858/sjsutst.2019.104.7

• Języki publikacji: EN

Abstrakty

EN

The mathematical model for calculating the response time of the compression ratio of the mechanism for compression ratio changing (MCRC) is presented in this article. This revealed the influence of various engine factors with the connecting rod and crank mechanism (CRCM) on the operation of the MCRC (for example, the rate of the compression ratio change). The results of the study of the operation of the MCRC indicate a strong influence of the values  (relative area of flow passage of channels) and р (pressure) on the response time τ in the field of their small values. This indicates that with insignificant changes of the area of flow passage of channel of the hydraulic lock and the minute oil pressure in the cavities, a significant response rate of the MCRC is ensured. The results demonstrate the possibility of speedy compression ratio change in the engine with the MCRC. Calculation studies showed that the mechanism full operation occurs quickly (0.02 s per unit εx), which indicates the expediency of using such a high-pressure pump in a four-stroke gasoline engine with CRCM. The mechanism movable body complete movement (S = 4 mm) at the oil temperature in the hydraulic system of 45°C and pressure on the body of p = 60 bar are stated to occur for 0.2 s.

Słowa kluczowe

EN

mechanism for compression; ratio changing; connecting rod; crank mechanism; conrod-free engine; response time; pressure; oil temperature

PL

mechanizm kompresji; zmiana współczynnika; korbowód; mechanizm korbowy; silnik bezkorbowy; czas odpowiedzi; ciśnienie; temperatura oleju

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Transport / Politechnika Śląska
• Rocznik: 2019
• Tom: z. 104
• Strony: 69--83
• Opis fizyczny: Bibliogr. 30 poz.

Twórcy

autor

Kolesnikova Tatiana

• Faculty of Mechanics, Prydniprovs’ka State Academy of Civil Engineering and Architecture, 24A Chernyshevsky Street, 49600, Dnipro, Ukraine

autor

Mischenko Nikolay

• Faculty of Mechanics, Prydniprovs’ka State Academy of Civil Engineering and Architecture, 24A Chernyshevsky Street, 49600, Dnipro, Ukraine

autor

Sakno Olha

• Faculty of Mechanics, Prydniprovs’ka State Academy of Civil Engineering and Architecture, 24A Chernyshevsky Street, 49600, Dnipro, Ukraine

autor

Suprun Volodymyr

• Faculty of Mechanics, Prydniprovs’ka State Academy of Civil Engineering and Architecture, 24A Chernyshevsky Street, 49600, Dnipro, Ukraine

autor

Filipova Galynaa

• Department of Motor Vehicles, National Transport University, 1 Mykhailа Omelianovycha-Pavlenka Street, 01010, Kyiv, Ukraine

autor

Nikitchenko Igor

• Vehicles Faculty, Department of Internal Combustion Engine, Kharkiv National Automobile and Highway University, 25 Yaroslava Mudrogo Street, Kharkiv, Ukraine, 61002

autor

Gorpyniuk Andrii

• State Enterprise “State Road Transport Research Institute”, 57 Peremohy Ave, Kyiv, 03113, Ukraine

autor

Nazarenko Mykola

• State Enterprise “State Road Transport Research Institute”, 57 Peremohy Ave, Kyiv, 03113, Ukraine

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).