| ovudapovytikenykozotevycyl |
Postato il 10/20/2020 : 21:15:04
Diesel heavy truck exhaust manifold.For a long time, the exhaust manifold works under high temperature cyclic alternating state. The oxidation resistance of the material at high temperature directly affects the service life of the exhaust manifold.It is necessary to add alloying elements into the material to improve the high temperature oxidation resistance of the material.The VTEC design is like using two different camshafts, one for low speed and one for high speed, but the difference between the VTEC engine is that these two different camshafts are designed on one camshaft.In addition to a pair of cams (main and secondary cams) and a pair of rocker arms (main and secondary rocker arms) that control the two valves, a higher intermediate CAM and corresponding rocker arms (middle rocker arms) are added to the Honda engine intake camshaft. The three rocker arms contain small pistons that are hydraulically controlled to move.
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