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Analysis of the wear of piston rings prototype in terms of team endurance test

Kaźmierczak A., Dudziński W., Kaźmierczak Ł.

Journal of KONES

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2013

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Vol. 20, No. 2

181--187

EN

The article discusses the results of the wear of piston rings for internal combustion engines with self ignition. The research was a prototype multilayer ring sealing of the porous coating and the so-called chromium embankment diamonds [2]. Technology of the rings is the deposition of multilayer coatings in the process of chromium plating. In times of chromium deposited from the bath particles are technical diamond's shape, and granulation. This technology is a response to domestic factory piston rings to the needs of the automotive market and is an innovative development. Conducted engine tests consisted of a 50-hour cycle and to hour break-in team life cycle, which was repeated 150 times. Thus the total duration of sample equal to 200 hours. Cycle life is a team containing a phase-hour cycle engine traffic load at maximum speed and maximum torque and maximum power of the tween partial load and idling. This cycle is repeated in the 200-hour test 150 times. During the measurement of key indicators were measured at the engine, the fuel consumption, coolant temperature and pressure of the lubricating oil. In order to calculate the wear of piston rings, the difference was calculated to measure the thickness and height before and after sample of 200 hours. In a similar way as the use of thickness and height of the rings was calculated by weight loss.

2

Analysis of the wear of piston ring prototype of an embankment of diamond in terms endurance test

Kaźmierczak A., Kaźmierczak Ł.

Journal of KONES

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2012

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Vol. 19, No. 4

283-289

EN

The article discusses the results of the wear of piston rings for internal combustion engines with spark ignition. The research was a prototype multilayer ring sealing of the porous coating and the so-called chromium embankment diamonds. Technology of the rings is the deposition of multilayer coatings in the process of chromium plating. In times of chromium deposited from the bath, particles are technical diamond's shape, and granulation. This technology is a response to domestic factory piston rings to the needs of the automotive market and is an innovative development. Conducted engine tests consisted of a 50-hour cycle and to hour break-in team life cycle, which was repeated 150 times. Thus, the total duration of sample equal to 200 hours. Cycle life is a team containing a phase-hour cycle engine traffic load at maximum speed and maximum torque and maximum power of the tween partial load and idling. This cycle is repeated in the 200-hour test 150 times. During the measurement of key indicators were measured at the engine, the fuel consumption, coolant temperature and pressure of the lubricating oil. In order to calculate the wear of piston rings, the difference was calculated to measure the thickness and height before and after sample of 200 hours. In a similar way as the use of thickness and height of the rings was calculated by weight loss.

3

Field of pressure in zone contact elements assembly PRC stationary quantification

Tkaczyk M., Kaźmierczak A., Kaźmierczak Ł., Górniak A.

Journal of KONES

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2011

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Vol. 18, No. 3

463-471

EN

One of the most common worldwide rubbing couple which performs plane-turning motion is a pair of selling rings - cylinder sleeve of a Piston - Ring- Cylinder (PRC) system of a combustion engine. It explains the necessity of performing investigations concerning the phenomenon occurring in rubbing couple PRC. One of the most important issues is the friction losses as well as losses of the working medium from the combustion chamber. Mathematical models of gas flow in the PRC are described in the literature differ in the way of description and scope of the phenomena taken into account. In this paper approach to determine the flow spaces between the rings considering the effect of the geometry of the PRC system has been proposed. Investigation conducted with aid of CFD (Computational Fluid Dynamics) were aimed on determination of flow resistance within the surface between the piston, rings, and cylinder liner. Aim of the study was achieved - The pressure field. it has been found that it is possible to determine the pressure field in the space of the PRC system basing on the approximation of the generalized transport equations for a discrete geometric model using the finite volume method. The precision of the results depends on the account in the form of boundary conditions as well as external conditions.