Pneumatic lubricating oil supplying system for organic Rankine cycle expansion machine based on four-way reversing valve
A technology of four-way reversing valve and Rankine cycle, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of consumption of expander output power and leakage of shaft seals, so as to avoid power consumption and eliminate leakage risk effect
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[0016] Example 1: Such as Figure 4 As shown, 6, 8, 9, and four one-way valves can be integrated into a whole. The upper part of the whole is equipped with oil separation equipment such as a separation filter, the lower part is two working chambers 8, 9 and a total of 4 one-way valves are installed on the upper and lower parts of the working volume 8, 9. The four ports a, b, c, and d of 7 are respectively connected to the inlet pipe of the expander, the upper part of the working volume 9, 6 and the working volume 8. At the same time, a partition is installed on the upper part of 8 and 9 to reduce the risk of mutual dissolution of gas working fluid and lubricating oil. The two working volumes 8 and 9 are alternately used to inject oil into the expander and to collect 6 separated lubricating oil. When 7 is energized, the high-pressure gas at the inlet of the expander is introduced into the expander from port a in 9 and the lubricating oil in it is used to inject the expander, a...
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