Oilers/Plant Tenders (HHC) Civil Service Practice Exam

Where is the optimal location for the atomizer that feeds oil to a steam engine cylinder?

1. Before the steam throttle valve

2. At the cylinder head

3. After the steam throttle valve

4. Near the crankshaft

The correct answer is: After the steam throttle valve

The optimal location for the atomizer that feeds oil to a steam engine cylinder is after the steam throttle valve. Placing the atomizer in this position ensures that the oil is introduced into the steam flow at the right moment, maximizing the efficiency of lubrication within the cylinder. By positioning the atomizer after the steam throttle valve, the atomized oil can be effectively mixed with the steam entering the cylinder, providing better lubrication and performance. This setup ensures that the oil reaches the cylinder at the appropriate time when the steam is being admitted, allowing for efficient power transfer and reducing wear on engine components. The other positions for the atomizer compromise the effectiveness of lubrication. For instance, if it were located before the steam throttle valve, the oil might not mix properly with the steam or may even contribute to unnecessary pressure loss. If located at the cylinder head, there could be challenges in achieving the right dispersion of the oil in the steam. Finally, placing the atomizer near the crankshaft could lead to inconsistent lubrication since it’s not integrated with the flow of steam into the cylinder directly. Thus, installing the atomizer after the steam throttle valve is the best strategy for ensuring proper lubrication and optimal engine operation.