Marine Diesel Engines

Currently, among the ship’s power plants (SPP) diesel engine plant occupy a leading position, they are used by approximately 90% of global civil courts-fleet. In the domestic shipbuilding more than 95% of the ships under construction are the ship. Diesel units are equipped with many types of vehicles and fishing vessels, marine and river fleet. The main factors contributing to the widespread use of diesel engines on ships as the main and auxiliary engines are their high efficiency, reliability, significant lifespan. As part of the Navy has a large number of ships from the ship’s internal combustion engines (ICE) different types and brands differ in design and in performance. gost 4393-74 * provides a unique designation marine, locomotive and stationary diesel engines. ” In the letter grades of diesel engines mean: R-push-pull, B – Four-, R – Reversible, C – ship with reverse clutch, P – with reduction gear, dd – two-stroke double-acting, K – cross-head, H – supercharged.

Numbers refer to: first, facing letters – the number of cylinders in the numerator – the diameter of the cylinder, in the denominator – stroke 2. Digit after the shot – the number of modifications of this type (1, 2, etc.) of the engine. For example, grade diesel 5DKRN5O/110 – 2 means a five-cylinder, two stroke, cross-head, reversible, with a supercharged engine, cylinder diameter 50 cm, 110 cm stroke, the second modification. In addition to the notation on gost, also used the factory brand diesel engines. Leading foreign firms producing low-speed marine diesel engines are as follows: “Burmeister and Vine” (Denmark), Sulzer (Switzerland), mai (FRG), Doxford (UK), “Stork” (Netherlands), Getaverken (Sweden), “FIAT (Italy), “Pilstik (France) and their licensees..

Business Issues

The problem of automatic line heating. Before the automatic heating lines are as follows production problems: – Removing blanks from a bunker – Installation of workpieces on a conveyor belt – Rotation of pieces in space – An automatic line heating supplies billet in the inductor – Automatic line heating manufactures heating billets – Distribution of the heated billet to the two presses for stamping. Under most conditions David Zaslav would agree. Thus the automatic line is induction heating under a high frequency of blanks by forging or stamping. Hopper capacity is calculated about an hour of continuous operation of the plant. Automatic line produced by our company are designed for induction heating of blanks for stamping bolts according to the following terms of reference: – The length of the blanks: 70 – 300 mm – Length of the heated part: 50 – 120 mm – diameter of the blanks: 22 – 36 mm – Heating temperature: 1200 C – heating time (out of blanks): 3 – 5 sec – Availability device orientation billets (the determinant of bevel) – The presence of the device supply billets to two presses for stamping.