JPH01166863U - - Google Patents

Description

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

第１，２図はこの考案の実施例を示し、第１図
は内燃機関の要部切欠き断面図、第２図は内燃機
関のクランク軸オイルシール部位の要部拡大断面
図である。第３，４図はこの考案の従来技術を示
し、第３図は内燃機関の要部切欠き断面図、第４
図は第３図の−線によるハウジングの正面図
である。 図において、２は内燃機関、４はシリンダブロ
ツク、６はクランク軸、８はフライホイール、１
０はオイルシール、１２はハウジング、１４は第
１係止凹部、１６は第２係止凹部、１８は締結用
ボルト、２０はオイルパン、２２は取付けボルト
、２４はガスケツトである。 1 and 2 show an embodiment of this invention, with FIG. 1 being a cutaway sectional view of the main part of an internal combustion engine, and FIG. 2 being an enlarged sectional view of the main part of the crankshaft oil seal portion of the internal combustion engine. Figures 3 and 4 show the prior art of this invention; Figure 3 is a cutaway sectional view of the main parts of an internal combustion engine;
The figure is a front view of the housing taken along the - line in FIG. 3. In the figure, 2 is an internal combustion engine, 4 is a cylinder block, 6 is a crankshaft, 8 is a flywheel, 1
0 is an oil seal, 12 is a housing, 14 is a first locking recess, 16 is a second locking recess, 18 is a fastening bolt, 20 is an oil pan, 22 is a mounting bolt, and 24 is a gasket.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内燃機関のクランク軸のフライホイール側端部
のシールを果すオイルシールにおいて、シリンダ
ブロツクに第１係止凹部を形成するとともにシリ
ンダブロツクに装着されるハウジングに第２係止
凹部を形成し、これら第１、第２係止凹部により
前記クランク軸の一端外周に装着されるオイルシ
ールを挟持すべく構成したことを特徴とする内燃
機関のクランク軸オイルシール。 In an oil seal that seals the flywheel side end of the crankshaft of an internal combustion engine, a first locking recess is formed in the cylinder block, a second locking recess is formed in the housing attached to the cylinder block, and the first locking recess is formed in the housing attached to the cylinder block. 1. A crankshaft oil seal for an internal combustion engine, characterized in that the oil seal attached to the outer periphery of one end of the crankshaft is held between the second locking recess.