Pump body assembly and fluid machine
AssigneeGree Electric Appliances, Inc. of Zhuhai
InventorsYusheng Hu, Huijun Wei, Jia Xu, Zhongcheng Du, Liping Ren, Zhi Li
Life of this patent
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Abstract
Disclosed are a pump body assembly and a fluid machine. The pump body assembly includes a rotation shaft and a piston provided with a sliding hole, at least a portion of the rotation shaft penetrates into the sliding hole, during rotation of the piston with the rotation shaft, and the sliding hole is in sliding fit with the rotation shaft, the piston is provided with a piston communication passage communicated with the sliding hole. The pump body assembly can solve the problem that the piston impedes a flow of oil liquid during use of a rotary cylinder compressor.
Claims13
A pump body assembly, comprising:
- a rotation shaft;
- and
- a piston provided with a sliding hole, wherein at least a portion of the rotation shaft penetrates into the sliding hole, during rotation of the piston with the rotation shaft, the sliding hole is in sliding fit with the rotation shaft, and the piston is provided with at least one piston communication passage communicated with the sliding hole;
- in an axial direction of the rotation shaft, the piston is provided on its end face with a piston communication groove, and the piston communication groove extends in a sliding direction of the piston and constitutes the at least one piston communication passage;
- and
- the sliding hole of the piston is further provided therein with at least one flexible groove, the at least one flexible groove extends in the axial direction of the rotation shaft, and the at least one flexible groove is communicated at its end with the piston communication groove.
Dependencies are inferred from the claim text.