Pump body assembly, heat exchange apparatus, fluid machine and operating method thereof

The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while r...

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Bibliographische Detailangaben
Hauptverfasser: Zhang, Rongting, Dong, Mingzhu, Liang, Shebing, Hu, Yusheng, Wei, Huijun, Shi, Zhengliang, Ding, Ning, Li, Zhi, Xu, Jia, Yang, Sen, Du, Zhongcheng, Ren, Liping, Zhang, Peilin
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.