In the manufacturing industry it is of great importance to reduce machining deviations as soon possible avoid cost associated with reworks. The definition mathematical models that predict future errors in components combustion engines, a way helps save time and money process.
 This paper proposes analysis establishment correlations between cylinder heads rejections an engine cold testing a...

The purpose of the work is organization six-cylinder diesel engines (with a power 116 and 156 kW) working process with exhaust gas recirculation. following systems components were used in experimental configuration engine: Common Rail BOSСH accumulator fuel injection system an pressure 140 MPa equipped electro-hydraulic injectors 7-hole nozzle 500 mm3 hydraulic flow; direct MOTORPAL pump maximu...

The A356 aluminum alloy is a very commonly used in the automotive industry, for parts such as pistons, cylinder heads, and connecting rods, which mechanical properties can be effectively increased by anodizing. In this work, oxide layers were formed oxalic acid solution with defined parameters on then studied using novel combination of scanning electron microscope (SEM) in-situ nanoindentation....

Internal combustion engines (ICEs) are widely used in many important fields. The valve train clearance of an ICE usually exceeds the normal value due to wear or faulty adjustment. This work aims at diagnosing the valve clearance fault based on the vibration signals measured on the engine cylinder heads. The non-stationarity of the ICE operating condition makes it difficult to obtain the nominal...

In contrast to the mean-line based filters, morphological filters are function oriented and more suitable for the functional prediction of component performance. This paper presents a novel morphological method based on the alpha shape for the extraction of topographical features from engineering surfaces. Compared to the traditional implementation of morphological filters, the alpha shape meth...

the effective factors of forward speed, cylinder rotation, and clearance between a combine’s cylinder and concave on wheat kernel breakage and seed germination were studied in karaj area using a 955 model john dear combine. this study was conducted on three levels of adjustment for each of the variables, 1.2, 1.8 and 2.5 km/hr for forward speed, 800, 900, 1000 rpm for cylinder rotation as well ...

Now a days, significant amount of aluminium alloy are being used to fabricate components such as engine blocks, cylinder heads, suspension control arms, wheels and pistons. In response to consumer demands for the increase in performance, the use of aluminium has grown dramatically in the recent years. So in order to produce a sound LM6 (Al-12%Si) Aluminium alloy casting, a new approach is made ...

We address the balancing problem of transfer lines in this paper to find the optimal line balancing that minimizes the nonproductive time. We focus on the tool change time and face orientation change time both of which influence the makespane. We consider machine capacity limitations and technological constraints associated with the manufacturing process of auto cylinder heads. The problem is r...

One remaining issue of CO2 processes are problems in connection with the lubrication oil. The objective of this project is to prove the feasibility of a small oil free semi hermetic piston type CO2-compressor for supercritical heat pump applications with large temperature spans. These processes involve high pressures like 35 bar suction pressure and 80 to 150 bar delivery pressure. A functional...