| CPC G05D 16/109 (2019.01) [F15B 1/021 (2013.01); F15B 1/025 (2013.01); F15B 1/027 (2013.01); F15B 1/033 (2013.01); F15B 1/24 (2013.01); F15B 21/006 (2013.01); H05K 7/20272 (2013.01); H05K 7/20281 (2013.01); F15B 2201/31 (2013.01); F15B 2201/32 (2013.01); F15B 2201/413 (2013.01); F16L 55/052 (2013.01); F16L 55/053 (2013.01)] | 20 Claims |
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8. A coolant distribution unit (CDU) comprising:
a closed fluid loop;
a circulation pump connected to the closed fluid loop for pumping a cooling fluid in the closed fluid loop;
a sensor disposed at an inlet of the circulation pump to detect a predefined pressure drop of the cooling fluid in the closed fluid loop during a predefined time period; and
a pressure regulator assembly comprising:
a cylinder having an internal volume; and
a first hollow piston and a second hollow piston slidably connected to the cylinder to split the internal volume into a first volume portion having the cooling fluid, a second volume portion having a driver fluid, and a third volume portion having a compressible matter,
wherein the first volume portion is fluidically connected to the closed fluid loop to allow a continuous flow of the cooling fluid in the closed fluid loop via the pressure regulator assembly, wherein the first hollow piston is reciprocated by the compressible matter to maintain an operating pressure of the cooling fluid in the closed fluid loop, and wherein the second hollow piston is driven by the driver fluid in response to detection by the sensor of the predefined pressure drop of the cooling fluid in the closed fluid loop during the predefined time period to inject an additional cooling fluid from the first volume portion into the closed fluid loop to restore a pressure level to the operating pressure.
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