CN2064826U - 密闭活塞 - Google Patents

密闭活塞 Download PDF

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Publication number
CN2064826U
CN2064826U CN 90200808 CN90200808U CN2064826U CN 2064826 U CN2064826 U CN 2064826U CN 90200808 CN90200808 CN 90200808 CN 90200808 U CN90200808 U CN 90200808U CN 2064826 U CN2064826 U CN 2064826U
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China
Prior art keywords
air
piston
tight
tight piston
ring
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CN 90200808
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English (en)
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李湖
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Individual
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Individual
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Priority to CN 90200808 priority Critical patent/CN2064826U/zh
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Abstract

本实用新型设计了一种密闭活塞,其特点是两个气环和一个副环切口相互错开地置于第一道环槽内,省掉了一道环槽,经装机试用,当活塞环切口间隙磨损到1.5毫米时仍能正常使用,比现有活塞节省燃油10%,节省机油50%以上,机油不污染,功率相应提高,配件寿命可延长一倍以上。

Description

本实用新型属机械工程技术领域,是关于一种密闭活塞。
现有的活塞有三个气环,分别装在三道环槽内。活塞在运行中,缸套、活塞体、气环互相摩擦,气环的切口间隙不断逐步扩大,当超过0.8毫米后,燃油气进入曲轴箱的数量明显增多,造成严重漏气,机油上串烧机油,使内燃机的功率明显减小。
本实用新型的目的是研制一种能保证活塞气环热胀冷缩的同时,切断气缸燃油气漏入曲轴箱的通路,避免严重漏气、烧机油的活塞。
本实用新型的技术方案是:去掉现有活塞的第二道环槽和气环,将第一道环槽加宽至少置入两个气环和一个副环;第三道以下各环不变,构成密闭活塞,改善了活塞气环切口处漏气的现象,实现了创造目的。
结合附图和实例进一步介绍本实用新型的密闭活塞的结构特征。
参见附图,密闭活塞包括活塞体1,副环2,气环3,气环4,气环5,油环6。将副环2在里,气环3、气环4在外,三个环的切口呈三角状错开地置入第一道环槽内。副环2可采用薄钢带制作。
由于在一道环槽内至少采用切口相互错开的二个气环和一个副环,当活塞环、活塞体、缸套相互摩擦,该密闭活塞在保证活塞环热胀冷缩的同时,仍能很好地密封活塞环切口处的间隙,切断了燃油气漏入曲轴箱的通路,保持了燃烧室和曲轴箱的密闭状态。
该密闭活塞经在拖拉机、汽车上试用,从装机到活塞环切口间隙磨损到1.5毫米,比使用现有活塞节省燃油10%,节省机油50%以上,机油不污染,功率相应提高,活塞、活塞环、缸套的寿命可延长一倍以上。

Claims (1)

1、一种密闭活塞,具有活塞体、气环和油环,其特征是还具有副环,一个副环和至少二个气环,副环在里,气环在外,切口相互错开地置于加宽的第一道环槽内,省掉了一道环槽。
CN 90200808 1990-01-18 1990-01-18 密闭活塞 Withdrawn CN2064826U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 90200808 CN2064826U (zh) 1990-01-18 1990-01-18 密闭活塞

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 90200808 CN2064826U (zh) 1990-01-18 1990-01-18 密闭活塞

Publications (1)

Publication Number Publication Date
CN2064826U true CN2064826U (zh) 1990-10-31

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CN 90200808 Withdrawn CN2064826U (zh) 1990-01-18 1990-01-18 密闭活塞

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CN (1) CN2064826U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410175A (zh) * 2011-09-07 2012-04-11 华闽南配集团股份有限公司 新型节能空压机活塞环组

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410175A (zh) * 2011-09-07 2012-04-11 华闽南配集团股份有限公司 新型节能空压机活塞环组
CN102410175B (zh) * 2011-09-07 2015-04-22 华闽南配集团股份有限公司 新型节能空压机活塞环组

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