Circumferential sectioned helium sealing device for oxygen turbine pump of hydrogen oxygen engine
A sealing device and engine technology, applied in the direction of machines/engines, liquid fuel engines, pumping devices for elastic fluids, etc., to achieve the effects of improving dynamic pressure capacity, reducing possibility, and small leakage
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[0028] The circumferential segmented helium sealing device of a hydrogen-oxygen rocket engine oxygen turbo pump according to the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] A circumferentially segmented helium sealing device for an oxygen turbopump of a hydrogen-oxygen engine according to the present invention comprises two sets of circumferentially segmented helium seal rings 1 and 2, a sealing case 3, a cover plate 4, a hoop spring 6, Preload spring 7, pin 8, sealing washer 9, bolt 10, washer 11 and sealing bushing 5, etc. The two sides of the circumferential segmented helium seal device are oxygen chamber and hydrogen-rich gas chamber. During operation, a certain pressure of helium is supplied from the helium supply channel to ensure that the pressure of the helium seal chamber is higher than the pressure of the oxygen chamber and hydrogen-rich gas chamber on both sides. , which...
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