Realitätsnahe Prüfung von Motoransaugluftfiltern

Fleck, Sabine; Heim, Michael; Beck, Andreas; Moser, Nikolaus; Durst, Michael

doi:10.1007/bf03225494

Cited by 4 publications

(3 citation statements)

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“…Maximum stream value Q wmax = 56 m 3 /h was determined for maximum filtration speed υ Fw = 0.1 m/s. For passenger car filters, maximum paper filtration speed value is within the range υ Fw = 0.07-0.12 m/s [18,20,[53][54][55][56].…”

Section: Research Methodology and Conditionsmentioning

confidence: 99%

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Problems of selecting filter partition in passenger car engine intake air filters

Dziubak¹,

Bąkała²

2021

Combustion Engines

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The aim of this study was to verify the criteria for selecting pleated filter partitions used in passenger car engine filters. The paper presents the problem of optimizing pleated air filters in the dir ection of minimizing pressure drop, which is the source of engine energy losses. Two criteria for selection of a paper filter partition for specific operating conditions of the filter and the engine are presented: criterion of permissible separation speed and criterion of permissible pressure drop. The actual filtration area of 44 paper pleated filter elements used in passenger cars and the air stream flowing through the filter were determined, which made it possible to calculate separation speed. In 62% of the analyzed filter inserts, the calculated separation speeds are within the speed range recommended by the constructors, Fmax = 0,06-0,12 m/s. Exceeding permissible separation speed Fmax = 0,12 m/s was found mainly in supercharged engines. Negative effects of engine operation with an air filter with too small separation area are presented, in the form of increased pressure drop and energy loss of the engine as well as shorter car mileage to reach permissible pressure drop.

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Section: Research Methodology and Conditionsmentioning

confidence: 99%

“…1. Air filter in a modern passenger car: a) location of the air filter in the engine compartment, b) filter components, c) functional diagram[18]…”

mentioning

confidence: 99%

Problems of selecting filter partition in passenger car engine intake air filters

Dziubak¹,

Bąkała²

2021

Combustion Engines

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“…Air filters differ in principle and method of operation, construction, type of filtration baffle and efficiency of operation. The passenger car engines, which are operated at low concentrations of air dust, are equipped with single-stage (baffle) filters, where the filtering element is a commonly used cartridge (rectangular panel), made of pleated filter paper or non-woven filter cloth [13][14][15]. Engines of trucks, special vehicles (tanks, armored personnel carriers, infantry fighting vehicles) and working machines operating in conditions of high dust concentrations in the air are usually equipped with two-stage filters.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Effect of Air Filter Pressure Drop on Internal Combustion Engine Performance

Dziubak

Karczewski

2022

Energies

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The paper presents the problem of the effect of air filter pressure drop on the operating parameters of a modern internal combustion engine with compression ignition. A literature analysis of the results of investigations of the effect of air filter pressure drop on the filling, power and fuel consumption of carburetor and diesel engines with classical injection system was carried out. It was shown that each increase in the air filter pressure drop Δpf by 1 kPa results in an average decrease in engine power by SI 1–1.5% and an increase in specific fuel consumption by about 0.7. For compression ignition engines, the values are 0.4–0.6% decrease in power and 0.3–0.5% increase in specific fuel consumption. The values of the permissible resistance of the air filter flow Δpfdop determined from the condition of 3% decrease in engine power are given, which are at the level of 2.5–4.0 kPa—passenger car engines, 4–7 kPa—truck engines and 9–12 kPa—special purpose vehicles. Possibilities of decreasing the pressure drop of the inlet system, which result in the increase of the engine filling and power, were analyzed. The program and conditions of dynamometer engine tests were worked out in respect to the influence of the air filter pressure drop on the operation parameters of the six-cylinder engine of the swept volume Vss = 15.8 dm3 and power rating of 226 kW. Three technical states of the air filter were modeled by increasing the pressure drop of the filter element. For each technical state of the air filter, measurements and calculations of engine operating parameters, including power, hourly and specific fuel consumption, boost pressure and temperature, were carried out in the speed range n = 1000–2100 rpm. It was shown that the increase in air filter pressure drop causes a decrease in power (9.31%), hourly fuel consumption (7.87%), exhaust temperature (5.1%) and boost pressure (3.11%). At the same time, there is an increase in specific fuel consumption (2.52%) and the smoke of exhaust gases, which does not exceed the permissible values resulting from the technical conditions for admission of vehicles to traffic.

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