Abstract

By simulating the operating conditions, it is possible to verify and evaluate the technical properties of motor vehicle oil filters and the functionality of the designed equipment. Contaminated engine oil from operation was used with MANN W950/26 oil filter and a CNH Industrial 2992242 oil filter in the test circuit. Before use, the level of engine oil contamination in the test circuit was determined by evaluating the physicochemical properties. The laboratory test equipment also allows monitoring the technical life of oil filters, with variously contaminated engine oil, with the possibility of extending engine oil change service intervals depending on changes in the physicochemical properties of engine oil and filter efficiency. These laboratory tests can be performed in parallel in two hydraulic circuits, which can significantly reduce the testing time of the filter capabilities of oil filters, without the risk of engine damage, provided that the tests were performed under operating conditions. The results of the evaluation of the filtration capacity of oil filters can be used in the design of new filter materials, but also with a suitably determined methodology of oil filter replacement and engine oil change interval, it is possible to extend replacement intervals, which has a significant benefit not only from an economic but also ecological point of view. The result of the measurements is the confirmation of the functionality of the device with the possibility of simulating the operating conditions, at different degrees of oil contamination, at different operating temperatures and using different oil filters.

Highlights

  • IntroductionWe consider working fluids to be an important indicator of the correct operation of each hydraulic mechanism, while they have a fundamental influence on their elements.it is necessary to have knowledge and overview of their physical–chemical properties, which have a significant impact on the technical life of the components of the hydraulic circuit [1,2]

  • We consider working fluids to be an important indicator of the correct operation of each hydraulic mechanism, while they have a fundamental influence on their elements.it is necessary to have knowledge and overview of their physical–chemical properties, which have a significant impact on the technical life of the components of the hydraulic circuit [1,2]

  • When designing the laboratory test equipment to evaluate the efficiency of engine oil filtration, we relied on the technical characteristics of oil filters, hydraulic pump, the used hydraulic elements in the test hydraulic circuit, and internal combustion engine characteristics and calculations [15,16,17]

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Summary

Introduction

We consider working fluids to be an important indicator of the correct operation of each hydraulic mechanism, while they have a fundamental influence on their elements.it is necessary to have knowledge and overview of their physical–chemical properties, which have a significant impact on the technical life of the components of the hydraulic circuit [1,2]. We consider working fluids to be an important indicator of the correct operation of each hydraulic mechanism, while they have a fundamental influence on their elements. In the case of hydraulic circuits, the most accurate engineering production of its individual elements is important, where it is important to monitor the accuracy of CNC (computer numerical control) machine tools when using new methods in development and planning future products. In terms of the choice of base oils and suitable additives that affect the properties and perfect lubrication, engine oils are among the most demanding working fluids in vehicles. Fitch of Oklahoma State University, author of ISO 16889: 2008 Hydraulic fluid power-Filters-Multi-pass method for evaluating filtration performance of a filter element, filter test to evaluate filtration capacity and capture capacity

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