Provision for obtaining in the piston machines, Automatic opening or closing of the inlet or Exhaust Ports arranged on the walls of the cylinder in which the piston Moves.

• 1. 活塞式压缩机气缸、活塞式压缩机气缸用油气隔挡组件 [P] . 中国专利： CN214118411U . 2021-09-03
• 2. 内燃机活塞的铸造设备及打开或/和关闭铸造设备的方法 [P] . 中国专利： CN103282142B . 2016.01.20
• 3. Radial piston pump, has pump housing with star-shaped cylinder drills arranged relative to a piston, inlet openings and exhaust ports for corresponding cylinder drill [P] . 德国专利： DE10316322A1 . 2004-10-21

  机译： 径向活塞泵，其泵壳具有相对于活塞布置的星形气缸钻，相应气缸钻的进气孔和排气孔

• 4. Axial piston machine i.e. steam engine, for e.g. vehicle, has closing body arranged in inlet chamber for working medium with increased pressure, so that medium is conducted for expanding into cylinder through passage and inlet port [P] . 德国专利： DE102010036917A1 . 2012-02-09

  机译： 轴向活塞机，即蒸汽机，例如车辆，在进气室中布置有用于增加压力的工作介质的封闭体，以便引导介质通过通道和进气口膨胀到气缸中

• 5. A provision of Inlet and Outlet ports in the walls of the Cylinder piston Machines. [P] . ES115210A1 . 1929-11-01

  机译： 气缸活塞机壁上有一个入口和出口。

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• 2. NOVEL PRESSURE ADAPTIVE PISTON CYLINDER INTERFACE DESIGN FOR AXIAL PISTON MACHINES [C] . Shanmukh Sarode, Lizhi Shang ASME/BATH symposium on fluid power and motion control . 2019
• 3. A Study oof the Piston Cylinder Interface of Axial Piston Machines [D] . Mizell, Daniel. 2018
• 4. Variation of Heat Flux through a Combustion Chamber Wall of Pre-chamber type Diesel Engine : Heat Flux through Piston Crown, Cylinder Head, Suction Valve, Exhaust Valve, Pre-combustion Chamber and Exhaust Port Wall [O] . Masaichi YOSHIDA, Yasuo HARIGAYA, Kaoru SATO 1982
• 5. The effects of piston-head shape, cylinder-head shape, and exhaust restriction, on the performance of a piston-ported two-stroke cylinder [R] . Rogowski, A R, Bouchard, C L, Fayatte Taylor, C 1940

• 1. Theoretical Analysis of Noise of Piston Knocking Cylinder Wall in Automotive Engines [J] . 肖云魁 ,李世义 ,曹亚娟 . 北京理工大学学报：英文版 . 2005,第3期
• 2. 活塞组-气缸套耦合传热法在柴油机活塞热负荷研究中的应用 [C] . 周龙 ,白敏丽 ,吕继组 . 中国工程热物理学会第十一届年会 . 2005
• 3. 活塞式压缩机性能自动检测系统设计研究 [A] . 王绍让 . 2009