JPS5959575U - Oil seal mechanism on the shaft of an engine - Google Patents

Oil seal mechanism on the shaft of an engine

Info

Publication number
JPS5959575U
JPS5959575U JP1982156176U JP15617682U JPS5959575U JP S5959575 U JPS5959575 U JP S5959575U JP 1982156176 U JP1982156176 U JP 1982156176U JP 15617682 U JP15617682 U JP 15617682U JP S5959575 U JPS5959575 U JP S5959575U
Authority
JP
Japan
Prior art keywords
oil
oil seal
lip
engine
main lip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1982156176U
Other languages
Japanese (ja)
Other versions
JPS627898Y2 (en
Inventor
藤川　哲三
宇田　亮爾
Original Assignee
川崎重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to JP1982156176U priority Critical patent/JPS5959575U/en
Publication of JPS5959575U publication Critical patent/JPS5959575U/en
Application granted granted Critical
Publication of JPS627898Y2 publication Critical patent/JPS627898Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sealing With Elastic Sealing Lips (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第３図は本考案の実施態様を例示゛し、第
１図は実施例１のオイルシール機構を備えた２サイクル
エンジンの要部断面図、第２図は実施例１のオイルシー
ル機構の詳細断面図、第３図は実施例２のオイルシール
機構の詳細断面図、第４図は従来のオイルシール機構を
備えた２サイクルエンジンの要部断面図、第５図は従来
のオイルシールの変形を示す要部断面図である。 １・・・・・・エンジン、２・・・・・・軸（クランク
軸）、□５ａ、　　５ｂ・：・・・・クランクケース、
１０・・・・・・歯車、１１・・・・・・油溜り室、１
２・・・・・・スリーブ、１３−・・・・・・クランク
室、１４・・・・・・オイルシール、１５ｂ。 １６ｂ・・・・・・メインリップ、１５ｅ、１６ｅ・・
・・・・係合突起、Ａ・・・・・・オイル、１８・・・
・・・リップ背部空間、１９．２２・・・・・・通気路
、２４・・・・・・オイルシール、２４ｂ・・・・・・
クランク室側メインリップ、２４ｃ・・・　　　−。 ・・・油溜り側メインリップ、２４ｈ・・・・・・係合
突起、２５・・・・・・連通路。1 to 3 illustrate embodiments of the present invention, FIG. 1 is a cross-sectional view of essential parts of a two-cycle engine equipped with the oil seal mechanism of Embodiment 1, and FIG. 3 is a detailed sectional view of the oil seal mechanism of Embodiment 2, FIG. 4 is a sectional view of essential parts of a two-stroke engine equipped with a conventional oil seal mechanism, and FIG. 5 is a detailed sectional view of the oil seal mechanism of Embodiment 2. FIG. 3 is a sectional view of a main part showing deformation of an oil seal. 1...Engine, 2...Shaft (crankshaft), □5a, 5b:...Crankcase,
10...Gear, 11...Oil sump chamber, 1
2... Sleeve, 13-... Crank chamber, 14... Oil seal, 15b. 16b...Main lip, 15e, 16e...
...Engagement protrusion, A...Oil, 18...
...Lip back space, 19.22...Vent passage, 24...Oil seal, 24b...
Crank chamber side main lip, 24c... -. ...Oil reservoir side main lip, 24h...Engaging protrusion, 25...Communication path.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンのクランク室と油溜り室との間の軸上に、クラ
ンク室の圧力変動を受ける寸法の大きいクランク室側メ
インリップと、油溜り室の油密を保持する寸法の小さい
油溜り室側メインリップを有するオイルシールを嵌装し
、前記クランク室側メインリップと油溜り室側メインリ
ップとの間に形成されたリップ背部空間をオイルシール
内に形成された通気路とクランクケースに形成された通
気路を介して大気開放すると、ともに、両道気路の接続
部においてオイルシールの係合突起とクランクケースの
通気路開口端とが係合していることを特徴とするエンジ
ンにおける軸部のオイルシール機構。On the axis between the engine crank chamber and oil sump chamber, there is a main lip on the crank chamber side that is large in size and receives pressure fluctuations in the crank chamber, and a main lip on the oil sump chamber side that is small in size to keep the oil sump chamber oil-tight. An oil seal having a lip is fitted, and a lip back space formed between the crank chamber side main lip and the oil reservoir chamber side main lip is connected to an air passage formed in the oil seal and formed in the crankcase. Oil in a shaft portion of an engine characterized in that, when released to the atmosphere through a ventilation path, an engaging protrusion of an oil seal and an opening end of a ventilation path of a crankcase engage at a connecting portion of both airways. Seal mechanism.
JP1982156176U 1982-10-14 1982-10-14 Oil seal mechanism on the shaft of an engine Granted JPS5959575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982156176U JPS5959575U (en) 1982-10-14 1982-10-14 Oil seal mechanism on the shaft of an engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982156176U JPS5959575U (en) 1982-10-14 1982-10-14 Oil seal mechanism on the shaft of an engine

Publications (2)

Publication Number Publication Date
JPS5959575U true JPS5959575U (en) 1984-04-18
JPS627898Y2 JPS627898Y2 (en) 1987-02-24

Family

ID=30344700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982156176U Granted JPS5959575U (en) 1982-10-14 1982-10-14 Oil seal mechanism on the shaft of an engine

Country Status (1)

Country Link
JP (1) JPS5959575U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005240996A (en) * 2003-07-31 2005-09-08 Nok Corp Lip type end face sealing device
WO2006006338A1 (en) * 2004-07-09 2006-01-19 Nok Corporation Lip type end face sealing device
JP2007321889A (en) * 2006-06-01 2007-12-13 Kayaba Ind Co Ltd U-packing and hydraulic single-acting cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005240996A (en) * 2003-07-31 2005-09-08 Nok Corp Lip type end face sealing device
WO2006006338A1 (en) * 2004-07-09 2006-01-19 Nok Corporation Lip type end face sealing device
JP2007321889A (en) * 2006-06-01 2007-12-13 Kayaba Ind Co Ltd U-packing and hydraulic single-acting cylinder

Also Published As

Publication number Publication date
JPS627898Y2 (en) 1987-02-24

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