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发明公开
CN106089484A 活塞单环及含有该活塞单环的汽油发动机活塞、气缸 无效 - 撤回

活塞单环及含有该活塞单环的汽油发动机活塞、气缸
摘要：
本发明公开了一种活塞单环及含有该活塞单环的汽油发动机活塞、气缸，该活塞单环包括有活塞环本体，所述活塞环本体具有呈柱面的活塞环内表面、呈鼓状的活塞环外表面、呈平面的活塞环下端面及呈倒锥状的活塞环上端面，所述活塞环上端面与活塞环下端面之间形成夹角；所述活塞环本体上具有一轴向切口，该轴向缺口下部为直切口，轴向切口上部为弧形切口。该汽油发动机活塞含有前述活塞单环；该气缸含有前述汽油发动机活塞。该发明通过定位销定位于活塞体上即可实现单环密封，密封性能好，稳定可靠，制作工艺简便。
摘要（英）：

The invention discloses a single piston ring and a petrol engine piston with the same and an air cylinder with the petrol engine piston. The single piston ring comprises a piston ring body provided with a cylindrical inner piston ring surface, a drum-shaped outer piston surface, a plane lower piston ring end face and an inverted-cone shaped upper piston ring end face, and an included angle is formed between the upper piston ring end face and the lower piston ring end face; one axial notch is arranged in the piston ring body, the lower portion of the axial notch is provided with a straight incision, and the upper portion of the axial notch is provided with a curved incision; the petrol engine piston is provided with the single piston; the air cylinder is provided with the petrol engine piston. By the arrangement, single-ring seal can be achieved by locating a locating pin in a piston body, sealing performance is good, steady reliability is achieved, and simpleness in production process is achieved.

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