MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202527102707 A) filed by Shanghai Highly Electrical Appliances Co. , Ltd. on October 24, 2025, for Pump Body Assembly And Rolling Piston Compressor.
Inventors include Li, Jie; Jia, Hanjun; Mao, Kaizhi; and Yuan, Hao.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: A pump body assembly, comprising a cylinder (1). The cylinder (1) comprises a cylinder body (11) and a first cavity (12) surrounded and defined by the cylinder body (11). The cylinder body (11) is provided with a notched portion (111). An end of the notched portion (111) extends to an inner wall of the cylinder body (11), and another end of the notched portion (111) extends to an exhaust side (112) of the cylinder (1). The maximum distance between an edge of the notched portion (111) and the inner wall of the cylinder body (11) is b, and the thickness of the cylinder body (11) is B, where 0 b/B = 0.2. The cylinder body (11) is provided with the notched portion (111) to reduce the clearance volume and improve volumetric efficiency. Additionally, by limiting the dimensions of the notched portion (111), the overall clearance volume range of the cylinder (1) is controlled, avoiding solely pursuing an increase in displacement while also addressing noise control, thereby enhancing overall performance.
Disclaimer: Curated by HT Syndication.
