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<table border="0" cellpadding="0" cellspacing="0" width="100%" class="forumline"> <tr> <td class="cat" width="22%">Autor</td> <td class="cat">Wiadomość</td> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>e054831577</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Avalanche/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pią 22:36, 07 Sty 2011<span class="gen"> </span> Temat postu: Measurement of hardness plug Experimental Study of</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Measurement of hardness plug Experimental Study of Engine Cylinder Head Temperature <br /> <br /> <br />) Should be removed soon after stopping the hardness plug, because they are still in the hot test pieces,<a href="http://www.uggstiefele.com" target="_blank" class="postlink">ugg stiefel</a>, then glue the hardness statement has not yet been firmly stuffed. (5) plug with a special fixture to face polishing hardness. Using the same hardness,<a href="http://www.belstaffitalia.org/uomo-belstaff-giacche" target="_blank" class="postlink">belstaff uomo</a>, all hardness measurements by the same person to minimize the measurement time error. (6) must start from the low-load driving conditions intended to reach stable operation after a predetermined time, then stop cooling, remove the hardness plug. (7) To prevent the end plug in the high-temperature hardness of the environment, oxidation and decarbonization of gas, the installation plug hardness before cleaning with H2SO4, then with NaOH neutralization, and then distilled water, and finally plug into the hardness of CuSO4 solution soak for 10 minutes . 2.2YC6108 cylinder head is installed on the hardness of the test point arrangement plug \ \ \ I /, 4 · · \ l / /. - \ 12. Figure 2 Layout of measuring points for a cylinder head 60 - Figure 2 shows the cylinder head is installed in the hardness of YC6108 plug the measuring point. 3YC6108 temperature measurement of diesel engine cylinder head temperature measurement of cylinder head 3.1YC6108 measured YC6108 diesel models as the main technical parameters: Model: YC6108ZQB forms: vertical, inline, water-cooled, four stroke, direct injection, six-cylinder bore × Stroke: (108 × 132) mm Displacement: 7.255L calibration of power, speed: 155kW, 2400r/min maximum torque, speed: 690N. m, 1400.1600r/min cylinder head temperature measurements carried out in two conditions. (1) 100% of rated power normal operation conditions First of all, cylinder head temperature YC6108 general survey of the state, that is, the temperature field on the cylinder head a full range of measurements, the cylinder head 2 of the cloth up and down about 12 points measured (2-cylinder temperature due to high),<a href="http://www.uggs-bestellen.org" target="_blank" class="postlink">uggs bestellen</a>, and the remaining 6 points cloth cylinder. Measurement, at 100% of rated power and stable operation for 30 minutes,<a href="http://www.asicsaustralia.org" target="_blank" class="postlink">asics australia</a>, water temperature 83 ℃, water temperature 91 ℃ or so; exhaust temperature is about 540 ℃. Measurement data obtained in Table 1. Right. Measurement data obtained in Table 2. Table 211o% ~ constant power YC6108 measuring point of each cylinder head temperature / ℃ 2 Ka 1 cylinder cylinder cylinder 3 cylinder 4 cylinder 5 cylinder 6 cylinder 133244339340221ll4151204318349302154160261340351253ll01542103213422509810019029832123993.2 results of the experimental results of temperature measurements show : (1) the entire YC6108 diesel engine cylinder head temperature within the allowable range, the heat load is not high: (2) YC6108 2 cylinder diesel engine, 5-cylinder heat load is higher. Temperature measurement results showed that: YC6108 the site of the highest temperature in the cylinder head and into the nozzle, between the exhaust valve near the point 34: (3) exhaust valve seat hole into the side of the valve seat hole temperature than the temperature side of the table 1lOO% ~ constant power falling into the high fish poor fish Wong. (2) 110% of rated power of the normal operating condition for the six-cylinder diesel engine for YC6108 compares the situation of heat load, the location of six points of the six-cylinder comparative measurement. Measurement, at 110% of rated power and stable operation for 30 minutes, water temperature 87 ~ C, water temperature is about 95 ~ C; exhaust temperature of 580 ~ C 4 concluding remarks left by the diesel engine cylinder head temperature measurements, understanding the cylinder head The. Thermal uniformity is obtained at 100% rated power, the cylinder head key points (such as: the nozzle and into the exhaust valve 3.4 points between the near bridge of the nose area) of the temperature does not exceed the allowable range. Follow-up measurements for the head of the models simulated the temperature field in the foundation,<a href="http://www.belstaffitalia.org" target="_blank" class="postlink">belstaff italia</a>, but also for other cylinder head design provides a scientific basis.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Avalanche/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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